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Remote Desktop File Opened from Suspicious Path
Identifies attempts to open a remote desktop file from suspicious paths. Adversaries may abuse RDP files for initial access.
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AdFind Command Activity
Nov 7, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Discovery Resources: Investigation Guide Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·This rule detects the Active Directory query tool, AdFind.exe. AdFind has legitimate purposes, but it is frequently leveraged by threat actors to perform post-exploitation Active Directory reconnaissance. The AdFind tool has been observed in Trickbot, Ryuk, Maze, and FIN6 campaigns. For Winlogbeat, this rule requires Sysmon.
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Identifies instances of lower privilege accounts enumerating Administrator accounts or groups using built-in Windows tools.
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IIS HTTP Logging Disabled
Nov 7, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Defense Evasion Data Source: Elastic Endgame Resources: Investigation Guide Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies when Internet Information Services (IIS) HTTP Logging is disabled on a server. An attacker with IIS server access via a webshell or other mechanism can disable HTTP Logging as an effective anti-forensics measure.
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ImageLoad via Windows Update Auto Update Client
Nov 7, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Defense Evasion Tactic: Execution Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies abuse of the Windows Update Auto Update Client (wuauclt.exe) to load an arbitrary DLL. This behavior is used as a defense evasion technique to blend-in malicious activity with legitimate Windows software.
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Remote Desktop Enabled in Windows Firewall by Netsh
Nov 7, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Defense Evasion Resources: Investigation Guide Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies use of the network shell utility (netsh.exe) to enable inbound Remote Desktop Protocol (RDP) connections in the Windows Firewall.
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Suspicious CertUtil Commands
Nov 7, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Defense Evasion Data Source: Elastic Endgame Resources: Investigation Guide Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies suspicious commands being used with certutil.exe. CertUtil is a native Windows component which is part of Certificate Services. CertUtil is often abused by attackers to live off the land for stealthier command and control or data exfiltration.
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Windows Firewall Disabled via PowerShell
Nov 7, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Defense Evasion Tactic: Execution Resources: Investigation Guide Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies when the Windows Firewall is disabled using PowerShell cmdlets, which can help attackers evade network constraints, like internet and network lateral communication restrictions.
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Detects attempts to enable the Windows Subsystem for Linux using Microsoft Dism utility. Adversaries may enable and use WSL for Linux to avoid detection.
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Adding Hidden File Attribute via Attrib
Nov 7, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Defense Evasion Tactic: Persistence Data Source: Elastic Endgame Resources: Investigation Guide Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Adversaries can add the 'hidden' attribute to files to hide them from the user in an attempt to evade detection.
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Clearing Windows Console History
Nov 7, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Defense Evasion Tactic: Execution Resources: Investigation Guide Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies when a user attempts to clear console history. An adversary may clear the command history of a compromised account to conceal the actions undertaken during an intrusion.
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Clearing Windows Event Logs
Nov 7, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Defense Evasion Resources: Investigation Guide Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies attempts to clear or disable Windows event log stores using Windows wevetutil command. This is often done by attackers in an attempt to evade detection or destroy forensic evidence on a system.
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Code Signing Policy Modification Through Built-in tools
Nov 7, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Defense Evasion Data Source: Elastic Endgame Resources: Investigation Guide Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies attempts to disable/modify the code signing policy through system native utilities. Code signing provides authenticity on a program, and grants the user with the ability to check whether the program has been tampered with. By allowing the execution of unsigned or self-signed code, threat actors can craft and execute malicious code.
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Delete Volume USN Journal with Fsutil
Nov 7, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Defense Evasion Data Source: Elastic Endgame Resources: Investigation Guide Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies use of the fsutil.exe to delete the volume USNJRNL. This technique is used by attackers to eliminate evidence of files created during post-exploitation activities.
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Disable Windows Event and Security Logs Using Built-in Tools
Nov 7, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Defense Evasion Resources: Investigation Guide Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies attempts to disable EventLog via the logman Windows utility, PowerShell, or auditpol. This is often done by attackers in an attempt to evade detection on a system.
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Disabling Windows Defender Security Settings via PowerShell
Nov 7, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Defense Evasion Tactic: Execution Resources: Investigation Guide Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies use of the Set-MpPreference PowerShell command to disable or weaken certain Windows Defender settings.
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Identifies the execution of wbadmin to access the NTDS.dit file in a domain controller. Attackers with privileges from groups like Backup Operators can abuse the utility to perform credential access and compromise the domain.
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Windows Defender Exclusions Added via PowerShell
Nov 7, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Defense Evasion Resources: Investigation Guide Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies modifications to the Windows Defender configuration settings using PowerShell to add exclusions at the folder directory or process level.
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Wireless Credential Dumping using Netsh Command
Nov 7, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Credential Access Tactic: Discovery Data Source: Elastic Endgame Resources: Investigation Guide Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies attempts to dump Wireless saved access keys in clear text using the Windows built-in utility Netsh.
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Deleting Backup Catalogs with Wbadmin
Nov 5, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Impact Resources: Investigation Guide Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies use of the wbadmin.exe to delete the backup catalog. Ransomware and other malware may do this to prevent system recovery.
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Enumerating Domain Trusts via DSQUERY.EXE
Nov 5, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Discovery Data Source: Elastic Endgame Resources: Investigation Guide Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies the use of dsquery.exe for domain trust discovery purposes. Adversaries may use this command-line utility to enumerate trust relationships that may be used for Lateral Movement opportunities in Windows multi-domain forest environments.
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Windows Component Object Model (COM) is an inter-process communication (IPC) component of the native Windows application programming interface (API) that enables interaction between software objects or executable code. Xwizard can be used to run a COM object created in registry to evade defensive counter measures.
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Execution via MSSQL xp_cmdshell Stored Procedure
Nov 5, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Persistence Resources: Investigation Guide Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies execution via MSSQL xp_cmdshell stored procedure. Malicious users may attempt to elevate their privileges by using xp_cmdshell, which is disabled by default, thus, it's important to review the context of it's use.
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Detects the usage of gpresult.exe to query group policy objects. Attackers may query group policy objects during the reconnaissance phase after compromising a system to gain a better understanding of the active directory environment and possible methods to escalate privileges or move laterally.
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Modification of Boot Configuration
Nov 5, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Impact Resources: Investigation Guide Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies use of bcdedit.exe to delete boot configuration data. This tactic is sometimes used as by malware or an attacker as a destructive technique.
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Mounting Hidden or WebDav Remote Shares
Nov 5, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Initial Access Tactic: Lateral Movement Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies the use of net.exe to mount a WebDav or hidden remote share. This may indicate lateral movement or preparation for data exfiltration.
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Peripheral Device Discovery
Nov 5, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Discovery Resources: Investigation Guide Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies use of the Windows file system utility (fsutil.exe) to gather information about attached peripheral devices and components connected to a computer system.
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Persistence via WMI Event Subscription
Nov 5, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Persistence Tactic: Execution Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·An adversary can use Windows Management Instrumentation (WMI) to install event filters, providers, consumers, and bindings that execute code when a defined event occurs. Adversaries may use the capabilities of WMI to subscribe to an event and execute arbitrary code when that event occurs, providing persistence on a system.
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Privilege Escalation via Named Pipe Impersonation
Nov 5, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Privilege Escalation Resources: Investigation Guide Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies a privilege escalation attempt via named pipe impersonation. An adversary may abuse this technique by utilizing a framework such Metasploit's meterpreter getsystem command.
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ScreenConnect Server Spawning Suspicious Processes
Nov 5, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Initial Access Tactic: Execution Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: Sysmon Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: SentinelOne Data Source: Crowdstrike ·Identifies suspicious processes being spawned by the ScreenConnect server process (ScreenConnect.Service.exe). This activity may indicate exploitation activity or access to an existing web shell backdoor.
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Service Control Spawned via Script Interpreter
Nov 5, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Privilege Escalation Tactic: Defense Evasion Tactic: Execution Data Source: Elastic Endgame Resources: Investigation Guide Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Crowdstrike ·Identifies Service Control (sc.exe) spawning from script interpreter processes to create, modify, or start services. This can potentially indicate an attempt to elevate privileges or maintain persistence.
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Volume Shadow Copy Deleted or Resized via VssAdmin
Nov 5, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Impact Resources: Investigation Guide Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies use of vssadmin.exe for shadow copy deletion or resizing on endpoints. This commonly occurs in tandem with ransomware or other destructive attacks.
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Volume Shadow Copy Deletion via WMIC
Nov 5, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Impact Tactic: Execution Resources: Investigation Guide Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies use of wmic.exe for shadow copy deletion on endpoints. This commonly occurs in tandem with ransomware or other destructive attacks.
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Credential Acquisition via Registry Hive Dumping
Nov 5, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Credential Access Resources: Investigation Guide Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: SentinelOne Data Source: Sysmon Data Source: Crowdstrike ·Identifies attempts to export a registry hive which may contain credentials using the Windows reg.exe tool.
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Identifies use of aspnet_regiis to decrypt Microsoft IIS connection strings. An attacker with Microsoft IIS web server access via a webshell or alike can decrypt and dump any hardcoded connection strings, such as the MSSQL service account password using aspnet_regiis command.
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Identifies a copy operation of the Active Directory Domain Database (ntds.dit) or Security Account Manager (SAM) files. Those files contain sensitive information including hashed domain and/or local credentials.
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Potential File Transfer via Certreq
Nov 5, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Defense Evasion Tactic: Command and Control Tactic: Exfiltration Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies Certreq making an HTTP Post request. Adversaries could abuse Certreq to download files or upload data to a remote URL.
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Potential Veeam Credential Access Command
Nov 5, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Defense Evasion Tactic: Credential Access Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies commands that can access and decrypt Veeam credentials stored in MSSQL databases. Attackers can use Veeam Credentials to target backups as part of destructive operations such as Ransomware attacks.
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Identifies a potential Windows Server Update Services (WSUS) abuse to execute psexec to enable for lateral movement. WSUS is limited to executing Microsoft signed binaries, which limits the executables that can be used to tools published by Microsoft.
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Remote File Download via Desktopimgdownldr Utility
Nov 5, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Command and Control Resources: Investigation Guide Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: SentinelOne Data Source: Sysmon Data Source: Crowdstrike ·Identifies the desktopimgdownldr utility being used to download a remote file. An adversary may use desktopimgdownldr to download arbitrary files as an alternative to certutil.
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Remote File Download via MpCmdRun
Nov 5, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Command and Control Resources: Investigation Guide Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies the Windows Defender configuration utility (MpCmdRun.exe) being used to download a remote file.
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Windows Credential Manager allows you to create, view, or delete saved credentials for signing into websites, connected applications, and networks. An adversary may abuse this to list or dump credentials stored in the Credential Manager for saved usernames and passwords. This may also be performed in preparation of lateral movement.
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Symbolic Link to Shadow Copy Created
Nov 5, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Credential Access Resources: Investigation Guide Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies the creation of symbolic links to a shadow copy. Symbolic links can be used to access files in the shadow copy, including sensitive files such as ntds.dit, System Boot Key and browser offline credentials.
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Bypass UAC via Event Viewer
Nov 5, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Privilege Escalation Tactic: Defense Evasion Resources: Investigation Guide Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: Microsoft Defender for Endpoint Data Source: System Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies User Account Control (UAC) bypass via eventvwr.exe. Attackers bypass UAC to stealthily execute code with elevated permissions.
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Persistence via TelemetryController Scheduled Task Hijack
Nov 5, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Persistence Tactic: Privilege Escalation Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Detects the successful hijack of Microsoft Compatibility Appraiser scheduled task to establish persistence with an integrity level of system.
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The Application Shim was created to allow for backward compatibility of software as the operating system codebase changes over time. This Windows functionality has been abused by attackers to stealthily gain persistence and arbitrary code execution in legitimate Windows processes.
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System Shells via Services
Nov 5, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Persistence Tactic: Execution Resources: Investigation Guide Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: SentinelOne Data Source: Microsoft Defender for Endpoint Data Source: System Data Source: Crowdstrike ·Windows services typically run as SYSTEM and can be used as a privilege escalation opportunity. Malware or penetration testers may run a shell as a service to gain SYSTEM permissions.
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UAC Bypass Attempt via Windows Directory Masquerading
Nov 5, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Privilege Escalation Tactic: Defense Evasion Resources: Investigation Guide Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies an attempt to bypass User Account Control (UAC) by masquerading as a Microsoft trusted Windows directory. Attackers may bypass UAC to stealthily execute code with elevated permissions.
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UAC Bypass via DiskCleanup Scheduled Task Hijack
Nov 5, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Privilege Escalation Tactic: Defense Evasion Tactic: Execution Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies User Account Control (UAC) bypass via hijacking DiskCleanup Scheduled Task. Attackers bypass UAC to stealthily execute code with elevated permissions.
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Unusual Parent-Child Relationship
Nov 5, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Privilege Escalation Resources: Investigation Guide Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies Windows programs run from unexpected parent processes. This could indicate masquerading or other strange activity on a system.
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User Account Creation
Nov 5, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Persistence Resources: Investigation Guide Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies attempts to create new users. This is sometimes done by attackers to increase access or establish persistence on a system or domain.
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Web Shell Detection: Script Process Child of Common Web Processes
Nov 5, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Persistence Tactic: Initial Access Tactic: Execution Resources: Investigation Guide Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: SentinelOne Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: Crowdstrike ·Identifies suspicious commands executed via a web server, which may suggest a vulnerability and remote shell access.
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Identifies execution from the Remote Desktop Protocol (RDP) shared mountpoint tsclient on the target host. This may indicate a lateral movement attempt.
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Microsoft Exchange Server UM Spawning Suspicious Processes
Nov 5, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Initial Access Tactic: Lateral Movement Data Source: Elastic Endgame Use Case: Vulnerability Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies suspicious processes being spawned by the Microsoft Exchange Server Unified Messaging (UM) service. This activity has been observed exploiting CVE-2021-26857.
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New ActiveSyncAllowedDeviceID Added via PowerShell
Nov 5, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Persistence Tactic: Execution Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies the use of the Exchange PowerShell cmdlet, Set-CASMailbox, to add a new ActiveSync allowed device. Adversaries may target user email to collect sensitive information.
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Identifies a remote file copy attempt to a hidden network share. This may indicate lateral movement or data staging activity.
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Suspicious Execution from INET Cache
Nov 5, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Initial Access Tactic: Command and Control Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies the execution of a process with arguments pointing to the INetCache Folder. Adversaries may deliver malicious content via WININET during initial access.
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Suspicious MS Office Child Process
Nov 5, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Initial Access Tactic: Defense Evasion Tactic: Execution Resources: Investigation Guide Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies suspicious child processes of frequently targeted Microsoft Office applications (Word, PowerPoint, Excel). These child processes are often launched during exploitation of Office applications or from documents with malicious macros.
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Suspicious MS Outlook Child Process
Nov 5, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Initial Access Tactic: Defense Evasion Tactic: Execution Resources: Investigation Guide Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: SentinelOne Data Source: Microsoft Defender for Endpoint Data Source: System Data Source: Crowdstrike ·Identifies suspicious child processes of Microsoft Outlook. These child processes are often associated with spear phishing activity.
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Identifies the execution of PowerShell with suspicious argument values. This behavior is often observed during malware installation leveraging PowerShell.
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Unusual Child Process of dns.exe
Nov 5, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Lateral Movement Resources: Investigation Guide Data Source: Elastic Endgame Use Case: Vulnerability Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies an unexpected process spawning from dns.exe, the process responsible for Windows DNS server services, which may indicate activity related to remote code execution or other forms of exploitation.
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Volume Shadow Copy Deletion via PowerShell
Nov 5, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Impact Tactic: Execution Resources: Investigation Guide Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies the use of the Win32_ShadowCopy class and related cmdlets to achieve shadow copy deletion. This commonly occurs in tandem with ransomware or other destructive attacks.
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Command Execution via SolarWinds Process
Nov 4, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Execution Tactic: Initial Access Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike · -
Identifies native Windows host and network enumeration commands spawned by the Windows Management Instrumentation Provider Service (WMIPrvSE).
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Detects attempts to execute a program on the host from the Windows Subsystem for Linux. Adversaries may enable and use WSL for Linux to avoid detection.
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Identifies attempts to open a Microsoft Management Console File from untrusted paths. Adversaries may use MSC files for initial access and execution.
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Managed Object Format (MOF) files can be compiled locally or remotely through mofcomp.exe. Attackers may leverage MOF files to build their own namespaces and classes into the Windows Management Instrumentation (WMI) repository, or establish persistence using WMI Event Subscription.
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Potential Foxmail Exploitation
Nov 4, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Initial Access Tactic: Execution Data Source: Elastic Defend Data Source: Sysmon Data Source: System Data Source: Elastic Endgame Data Source: SentinelOne Data Source: Microsoft Defender for Endpoint Data Source: Crowdstrike ·Identifies the Foxmail client spawning a child process with argument pointing to the Foxmail temp directory. This may indicate the successful exploitation of a Foxmail vulnerability for initial access and execution via a malicious email.
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Process Activity via Compiled HTML File
Nov 4, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Execution Data Source: Elastic Endgame Resources: Investigation Guide Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Compiled HTML files (.chm) are commonly distributed as part of the Microsoft HTML Help system. Adversaries may conceal malicious code in a CHM file and deliver it to a victim for execution. CHM content is loaded by the HTML Help executable program (hh.exe).
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Identifies execution from a directory masquerading as the Windows Program Files directories. These paths are trusted and usually host trusted third party programs. An adversary may leverage masquerading, along with low privileges to bypass detections allowlisting those folders.
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Identifies suspicious command execution (cmd) via Windows Management Instrumentation (WMI) on a remote host. This could be indicative of adversary lateral movement.
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Suspicious PDF Reader Child Process
Nov 4, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Execution Tactic: Initial Access Resources: Investigation Guide Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies suspicious child processes of PDF reader applications. These child processes are often launched via exploitation of PDF applications or social engineering.
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Detects attempts to install or use Kali Linux via Windows Subsystem for Linux. Adversaries may enable and use WSL for Linux to avoid detection.
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Control Panel Process with Unusual Arguments
Nov 4, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Defense Evasion Tactic: Execution Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies unusual instances of Control Panel with suspicious keywords or paths in the process command line value. Adversaries may abuse control.exe to proxy execution of malicious code.
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Enable Host Network Discovery via Netsh
Nov 4, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Defense Evasion Resources: Investigation Guide Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies use of the netsh.exe program to enable host discovery via the network. Attackers can use this command-line tool to weaken the host firewall settings.
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Identifies the use of nltest.exe for domain trust discovery purposes. Adversaries may use this command-line utility to enumerate domain trusts and gain insight into trust relationships, as well as the state of Domain Controller (DC) replication in a Microsoft Windows NT Domain.
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Microsoft Build Engine Started by a System Process
Nov 4, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Defense Evasion Tactic: Execution Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·An instance of MSBuild, the Microsoft Build Engine, was started by Explorer or the WMI (Windows Management Instrumentation) subsystem. This behavior is unusual and is sometimes used by malicious payloads.
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Microsoft Build Engine Started by an Office Application
Nov 4, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Defense Evasion Tactic: Execution Resources: Investigation Guide Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·An instance of MSBuild, the Microsoft Build Engine, was started by Excel or Word. This is unusual behavior for the Build Engine and could have been caused by an Excel or Word document executing a malicious script payload.
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Signed Proxy Execution via MS Work Folders
Identifies the use of Windows Work Folders to execute a potentially masqueraded control.exe file in the current working directory. Misuse of Windows Work Folders could indicate malicious activity.
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Suspicious Zoom Child Process
Nov 4, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Defense Evasion Tactic: Execution Data Source: Elastic Endgame Resources: Investigation Guide Data Source: Elastic Defend Data Source: SentinelOne Data Source: Microsoft Defender for Endpoint Data Source: System Data Source: Crowdstrike ·A suspicious Zoom child process was detected, which may indicate an attempt to run unnoticed. Verify process details such as command line, network connections, file writes and associated file signature details as well.
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Attempt to Establish VScode Remote Tunnel
Detects the execution of the VScode portable binary with the tunnel command line option indicating an attempt to establish a remote tunnel session to Github or a remote VScode instance.
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Disable Windows Firewall Rules via Netsh
Nov 4, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Defense Evasion Resources: Investigation Guide Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies use of the netsh.exe to disable or weaken the local firewall. Attackers will use this command line tool to disable the firewall during troubleshooting or to enable network mobility.
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Exporting Exchange Mailbox via PowerShell
Nov 4, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Collection Tactic: Execution Resources: Investigation Guide Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: SentinelOne Data Source: Microsoft Defender for Endpoint Data Source: System Data Source: Crowdstrike ·Identifies the use of the Exchange PowerShell cmdlet, New-MailBoxExportRequest, to export the contents of a primary mailbox or archive to a .pst file. Adversaries may target user email to collect sensitive information.
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Potential File Download via a Headless Browser
Nov 4, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Command and Control Resources: Investigation Guide Data Source: Windows Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: SentinelOne Data Source: Sysmon Data Source: Crowdstrike ·Identifies the use of a browser to download a file from a remote URL and from a suspicious parent process. Adversaries may use browsers to avoid ingress tool transfer restrictions.
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Potential Local NTLM Relay via HTTP
Nov 4, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Credential Access Tactic: Defense Evasion Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies attempt to coerce a local NTLM authentication via HTTP using the Windows Printer Spooler service as a target. An adversary may use this primitive in combination with other techniques to elevate privileges on a compromised system.
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Potential Remote Desktop Tunneling Detected
Nov 4, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Command and Control Tactic: Lateral Movement Resources: Investigation Guide Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: SentinelOne Data Source: Microsoft Defender for Endpoint Data Source: System Data Source: Crowdstrike ·Identifies potential use of an SSH utility to establish RDP over a reverse SSH Tunnel. This can be used by attackers to enable routing of network packets that would otherwise not reach their intended destination.
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Suspicious .NET Code Compilation
Nov 4, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Defense Evasion Tactic: Execution Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne Data Source: Crowdstrike ·Identifies executions of .NET compilers with suspicious parent processes, which can indicate an attacker's attempt to compile code after delivery in order to bypass security mechanisms.
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Suspicious ScreenConnect Client Child Process
Nov 4, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Command and Control Resources: Investigation Guide Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: Sysmon Data Source: SentinelOne Data Source: Microsoft Defender for Endpoint Data Source: System Data Source: Crowdstrike ·Identifies suspicious processes being spawned by the ScreenConnect client processes. This activity may indicate execution abusing unauthorized access to the ScreenConnect remote access software.
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Detects the creation and modification of an account with the "Don't Expire Password" option Enabled. Attackers can abuse this misconfiguration to persist in the domain and maintain long-term access using compromised accounts with this property.
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Detects modifications in the AdminSDHolder object. Attackers can abuse the SDProp process to implement a persistent backdoor in Active Directory. SDProp compares the permissions on protected objects with those defined on the AdminSDHolder object. If the permissions on any of the protected accounts and groups do not match, the permissions on the protected accounts and groups are reset to match those of the domain's AdminSDHolder object, regaining their Administrative Privileges.
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Enumeration of Privileged Local Groups Membership
Identifies instances of an unusual process enumerating built-in Windows privileged local groups membership like Administrators or Remote Desktop users.
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Adversaries may install legitimate remote access tools (RAT) to compromised endpoints for further command-and-control (C2). Adversaries can rely on installed RATs for persistence, execution of native commands and more. This rule detects when a process is started whose name or code signature resembles commonly abused RATs. This is a New Terms rule type indicating the host has not seen this RAT process started before within the last 30 days.
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First Time Seen NewCredentials Logon Process
Identifies a new credentials logon type performed by an unusual process. This may indicate the existence of an access token forging capability that are often abused to bypass access control restrictions.
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This rule identifies when a User Account starts the Active Directory Replication Process for the first time. Attackers can use the DCSync technique to get credential information of individual accounts or the entire domain, thus compromising the entire domain.
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This rule identifies a high number (10) of process terminations (stop, delete, or suspend) from the same host within a short time period.
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Identifies the modification of an account's Kerberos pre-authentication options. An adversary with GenericWrite/GenericAll rights over the account can maliciously modify these settings to perform offline password cracking attacks such as AS-REP roasting.
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An instance of MSBuild, the Microsoft Build Engine, started a PowerShell script or the Visual C# Command Line Compiler. This technique is sometimes used to deploy a malicious payload using the Build Engine.
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Identify the modification of the msPKIAccountCredentials attribute in an Active Directory User Object. Attackers can abuse the credentials roaming feature to overwrite an arbitrary file for privilege escalation. ms-PKI-AccountCredentials contains binary large objects (BLOBs) of encrypted credential objects from the credential manager store, private keys, certificates, and certificate requests.
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Identifies the modification of the nTSecurityDescriptor attribute in a domain object with rights related to DCSync to a user/computer account. Attackers can use this backdoor to re-obtain access to hashes of any user/computer.
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Potential Pass-the-Hash (PtH) Attempt
Adversaries may pass the hash using stolen password hashes to move laterally within an environment, bypassing normal system access controls. Pass the hash (PtH) is a method of authenticating as a user without having access to the user's cleartext password.
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Identify the modification of the msDS-KeyCredentialLink attribute in an Active Directory Computer or User Object. Attackers can abuse control over the object and create a key pair, append to raw public key in the attribute, and obtain persistent and stealthy access to the target user or computer object.
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Identifies the assignment of the SeEnableDelegationPrivilege sensitive "user right" to a user. The SeEnableDelegationPrivilege "user right" enables computer and user accounts to be trusted for delegation. Attackers can abuse this right to compromise Active Directory accounts and elevate their privileges.
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Identifies a suspicious parent child process relationship with cmd.exe descending from svchost.exe
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Detects when a user account has the servicePrincipalName attribute modified. Attackers can abuse write privileges over a user to configure Service Principle Names (SPNs) so that they can perform Kerberoasting. Administrators can also configure this for legitimate purposes, exposing the account to Kerberoasting.
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Windows CryptoAPI Spoofing Vulnerability (CVE-2020-0601 - CurveBall)
A spoofing vulnerability exists in the way Windows CryptoAPI (Crypt32.dll) validates Elliptic Curve Cryptography (ECC) certificates. An attacker could exploit the vulnerability by using a spoofed code-signing certificate to sign a malicious executable, making it appear the file was from a trusted, legitimate source.
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Windows Event Logs Cleared
Identifies attempts to clear Windows event log stores. This is often done by attackers in an attempt to evade detection or destroy forensic evidence on a system.
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Windows User Account Creation
Identifies attempts to create a Windows User Account. This is sometimes done by attackers to persist or increase access to a system or domain.
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Potential Credential Access via Windows Utilities
Oct 21, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Credential Access Tactic: Defense Evasion Resources: Investigation Guide Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: SentinelOne Data Source: Sysmon ·Identifies the execution of known Windows utilities often abused to dump LSASS memory or the Active Directory database (NTDS.dit) in preparation for credential access.
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The Filter Manager Control Program (fltMC.exe) binary may be abused by adversaries to unload a filter driver and evade defenses.
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Potential LSASS Clone Creation via PssCaptureSnapShot
Identifies the creation of an LSASS process clone via PssCaptureSnapShot where the parent process is the initial LSASS process instance. This may indicate an attempt to evade detection and dump LSASS memory for credential access.
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Identifies process execution from suspicious default Windows directories. This is sometimes done by adversaries to hide malware in trusted paths.
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Identifies a suspicious child process of the Windows virtual system process, which could indicate code injection.
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A scheduled task was created
Indicates the creation of a scheduled task using Windows event logs. Adversaries can use these to establish persistence, move laterally, and/or escalate privileges.
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A scheduled task was updated
Indicates the update of a scheduled task using Windows event logs. Adversaries can use these to establish persistence, by changing the configuration of a legit scheduled task. Some changes such as disabling or enabling a scheduled task are common and may may generate noise.
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Identify access to sensitive Active Directory object attributes that contains credentials and decryption keys such as unixUserPassword, ms-PKI-AccountCredentials and msPKI-CredentialRoamingTokens.
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Account Password Reset Remotely
Identifies an attempt to reset a potentially privileged account password remotely. Adversaries may manipulate account passwords to maintain access or evade password duration policies and preserve compromised credentials.
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Identifies a user being added to an active directory group by the SYSTEM (S-1-5-18) user. This behavior can indicate that the attacker has achieved SYSTEM privileges in a domain controller, which attackers can obtain by exploiting vulnerabilities or abusing default group privileges (e.g., Server Operators), and is attempting to pivot to a domain account.
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Identifies a modification on the dsHeuristics attribute on the bit that holds the configuration of groups excluded from the SDProp process. The SDProp compares the permissions on protected objects with those defined on the AdminSDHolder object. If the permissions on any of the protected accounts and groups do not match, the permissions on the protected accounts and groups are reset to match those of the domain's AdminSDHolder object, meaning that groups excluded will remain unchanged. Attackers can abuse this misconfiguration to maintain long-term access to privileged accounts in these groups.
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Active Directory Integrated DNS (ADIDNS) is one of the core components of AD DS, leveraging AD's access control and replication to maintain domain consistency. It stores DNS zones as AD objects, a feature that, while robust, introduces some security issues because of the default permission (Any authenticated users) to create DNS-named records. Attackers can perform Dynamic Spoofing attacks, where they monitor LLMNR/NBT-NS requests and create DNS-named records to target systems that are requested from multiple systems. They can also create specific records to target specific services, such as wpad, for spoofing attacks.
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Execution from Unusual Directory - Command Line
Oct 15, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Execution Tactic: Defense Evasion Resources: Investigation Guide Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: System Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne ·Identifies process execution from suspicious default Windows directories. This may be abused by adversaries to hide malware in trusted paths.
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Detects the first occurrence of a modification to Group Policy Object Attributes to add privileges to user accounts or use them to add users as local admins.
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Interactive Logon by an Unusual Process
Identifies interactive logon attempt with alternate credentials and by an unusual process. Adversaries may create a new token to escalate privileges and bypass access controls.
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Identifies the modification of the msDS-AllowedToDelegateTo attribute to KRBTGT. Attackers can use this technique to maintain persistence to the domain by having the ability to request tickets for the KRBTGT service.
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LSASS Memory Dump Handle Access
Identifies handle requests for the Local Security Authority Subsystem Service (LSASS) object access with specific access masks that many tools with a capability to dump memory to disk use (0x1fffff, 0x1010, 0x120089). This rule is tool agnostic as it has been validated against a host of various LSASS dump tools such as SharpDump, Procdump, Mimikatz, Comsvcs etc. It detects this behavior at a low level and does not depend on a specific tool or dump file name.
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Multiple Logon Failure Followed by Logon Success
Identifies multiple logon failures followed by a successful one from the same source address. Adversaries will often brute force login attempts across multiple users with a common or known password, in an attempt to gain access to accounts.
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Multiple Logon Failure from the same Source Address
Identifies multiple consecutive logon failures from the same source address and within a short time interval. Adversaries will often brute force login attempts across multiple users with a common or known password, in an attempt to gain access to accounts.
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Multiple Vault Web Credentials Read
Windows Credential Manager allows you to create, view, or delete saved credentials for signing into websites, connected applications, and networks. An adversary may abuse this to list or dump credentials stored in the Credential Manager for saved usernames and passwords. This may also be performed in preparation of lateral movement.
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Active Directory Integrated DNS (ADIDNS) is one of the core components of AD DS, leveraging AD's access control and replication to maintain domain consistency. It stores DNS zones as AD objects, a feature that, while robust, introduces some security issues, such as wildcard records, mainly because of the default permission (Any authenticated users) to create DNS-named records. Attackers can create wildcard records to redirect traffic that doesn't explicitly match records contained in the zone, becoming the Man-in-the-Middle and being able to abuse DNS similarly to LLMNR/NBNS spoofing.
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This rule identifies when a User Account starts the Active Directory Replication Process. Attackers can use the DCSync technique to get credential information of individual accounts or the entire domain, thus compromising the entire domain.
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Potential DNS Tunneling via NsLookup
This rule identifies a large number (15) of nslookup.exe executions with an explicit query type from the same host. This may indicate command and control activity utilizing the DNS protocol.
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Potential Evasion via Windows Filtering Platform
Identifies multiple Windows Filtering Platform block events and where the process name is related to an endpoint security software. Adversaries may add malicious WFP rules to prevent Endpoint security from sending telemetry.
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Adversaries may leverage unquoted service path vulnerabilities to escalate privileges. By placing an executable in a higher-level directory within the path of an unquoted service executable, Windows will natively launch this executable from its defined path variable instead of the benign one in a deeper directory, thus leading to code execution.
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Identifies a suspicious computer account name rename event, which may indicate an attempt to exploit CVE-2021-42278 to elevate privileges from a standard domain user to a user with domain admin privileges. CVE-2021-42278 is a security vulnerability that allows potential attackers to impersonate a domain controller via samAccountName attribute spoofing.
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Identifies potential relay attacks against a domain controller (DC) by identifying authentication events using the domain controller computer account coming from other hosts to the DC that owns the account. Attackers may relay the DC hash after capturing it using forced authentication.
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Identifies the creation of a DNS record that is potentially meant to enable WPAD spoofing. Attackers can disable the Global Query Block List (GQBL) and create a "wpad" record to exploit hosts running WPAD with default settings for privilege escalation and lateral movement.
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Privileged Account Brute Force
Identifies multiple consecutive logon failures targeting an Admin account from the same source address and within a short time interval. Adversaries will often brute force login attempts across multiple users with a common or known password, in an attempt to gain access to accounts.
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Process Creation via Secondary Logon
Identifies process creation with alternate credentials. Adversaries may create a new process with a different token to escalate privileges and bypass access controls.
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Identifies the remote update to a computer account's DnsHostName attribute. If the new value set is a valid domain controller DNS hostname and the subject computer name is not a domain controller, then it's highly likely a preparation step to exploit CVE-2022-26923 in an attempt to elevate privileges from a standard domain user to domain admin privileges.
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Remote Scheduled Task Creation via RPC
Identifies scheduled task creation from a remote source. This could be indicative of adversary lateral movement.
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Remote Windows Service Installed
Identifies a network logon followed by Windows service creation with same LogonId. This could be indicative of lateral movement, but will be noisy if commonly done by administrators."
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Detects the modification of Group Policy Object attributes to execute a scheduled task in the objects controlled by the GPO.
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Identifies the execution of scripts via HTML applications using Windows utilities rundll32.exe or mshta.exe. Adversaries may bypass process and/or signature-based defenses by proxying execution of malicious content with signed binaries.
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SeDebugPrivilege Enabled by a Suspicious Process
Identifies the creation of a process running as SYSTEM and impersonating a Windows core binary privileges. Adversaries may create a new process with a different token to escalate privileges and bypass access controls.
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Identifies a suspicious local successful logon event where the Logon Package is Kerberos, the remote address is set to localhost, followed by a sevice creation from the same LogonId. This may indicate an attempt to leverage a Kerberos relay attack variant that can be used to elevate privilege locally from a domain joined user to local System privileges.
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Detects the modification of Group Policy Objects (GPO) to add a startup/logon script to users or computer objects.
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Identify read access to a high number of Active Directory object attributes. The knowledge of objects properties can help adversaries find vulnerabilities, elevate privileges or collect sensitive information.
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A suspicious Endpoint Security parent process was detected. This may indicate a process hollowing or other form of code injection.
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Identifies suspicious processes being spawned by the JetBrain TeamCity process. This activity could be related to JetBrains remote code execution vulnerabilities.
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Identifies suspicious PowerShell execution spawning from Windows Script Host processes (cscript or wscript.exe).
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Identifies remote access to the registry using an account with Backup Operators group membership. This may indicate an attempt to exfiltrate credentials by dumping the Security Account Manager (SAM) registry hive in preparation for credential access and privileges elevation.
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Suspicious Service was Installed in the System
Identifies the creation of a new Windows service with suspicious Service command values. Windows services typically run as SYSTEM and can be used for privilege escalation and persistence.
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Identifies the execution of the Windows Command Shell process (cmd.exe) with suspicious argument values. This behavior is often observed during malware installation.
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Temporarily Scheduled Task Creation
Indicates the creation and deletion of a scheduled task within a short time interval. Adversaries can use these to proxy malicious execution via the schedule service and perform clean up.
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Detects unusual Print Spooler service (spoolsv.exe) child processes. This may indicate an attempt to exploit privilege escalation vulnerabilities related to the Printing Service on Windows.
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Identifies a user being added to a privileged group in Active Directory. Privileged accounts and groups in Active Directory are those to which powerful rights, privileges, and permissions are granted that allow them to perform nearly any action in Active Directory and on domain-joined systems.
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Identifies suspicious use of whoami.exe which displays user, group, and privileges information for the user who is currently logged on to the local system.
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Windows Service Installed via an Unusual Client
Identifies the creation of a Windows service by an unusual client process. Services may be created with administrator privileges but are executed under SYSTEM privileges, so an adversary may also use a service to escalate privileges from administrator to SYSTEM.
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Identifies a potential forced authentication using related SMB named pipes. Attackers may attempt to force targets to authenticate to a host controlled by them to capture hashes or enable relay attacks.
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Suspicious File Downloaded from Google Drive
Identifies suspicious file download activity from a Google Drive URL. This could indicate an attempt to deliver phishing payloads via a trusted webservice.
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