-
Identifies the deletion of WebServer access logs. This may indicate an attempt to evade detection or destroy forensic evidence on a system.
Read More -
Identifies newly seen removable devices by device friendly name using registry modification events. While this activity is not inherently malicious, analysts can use those events to aid monitoring for data exfiltration over those devices.
Read More -
Potential LSASS Memory Dump via PssCaptureSnapShot
Identifies suspicious access to an LSASS handle via PssCaptureSnapShot where two successive process accesses are performed by the same process and target two different instances of LSASS. This may indicate an attempt to evade detection and dump LSASS memory for credential access.
Read More -
This rule identifies a high number (20) of file creation event by the System virtual process from the same host and with same file name containing keywords similar to ransomware note files and all within a short time period.
Read More -
This rule detects rare internet network connections via the SMB protocol. SMB is commonly used to leak NTLM credentials via rogue UNC path injection.
Read More -
Detects attempts to exploit privilege escalation vulnerabilities related to the Print Spooler service. For more information refer to the following CVE's - CVE-2020-1048, CVE-2020-1337 and CVE-2020-1300 and verify that the impacted system is patched.
Read More -
Identifies a suspicious parent child process relationship with cmd.exe descending from svchost.exe
Read More -
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.
Read More -
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.
Read More -
Identifies execution from the Remote Desktop Protocol (RDP) shared mountpoint tsclient on the target host. This may indicate a lateral movement attempt.
Read More -
Identifies the modification of the network logon provider registry. Adversaries may register a rogue network logon provider module for persistence and/or credential access via intercepting the authentication credentials in clear text during user logon.
Read More -
Persistence via Update Orchestrator Service Hijack
Oct 21, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Persistence Tactic: Privilege Escalation Use Case: Vulnerability Resources: Investigation Guide Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: Microsoft Defender for Endpoint Data Source: Sysmon Data Source: SentinelOne ·Identifies potential hijacking of the Microsoft Update Orchestrator Service to establish persistence with an integrity level of SYSTEM.
Read More -
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.
Read More -
Identifies when a browser process navigates to the Microsoft Help page followed by spawning an elevated process. This may indicate a successful exploitation for privilege escalation abusing a vulnerable Windows Installer repair setup.
Read More -
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.
Read More -
Identifies process execution from suspicious default Windows directories. This is sometimes done by adversaries to hide malware in trusted paths.
Read More -
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.
Read More -
Identifies modifications to the registered Subject Interface Package (SIP) providers. SIP providers are used by the Windows cryptographic system to validate file signatures on the system. This may be an attempt to bypass signature validation checks or inject code into critical processes.
Read More -
Suspicious PDF Reader Child Process
Oct 21, 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 ·Identifies suspicious child processes of PDF reader applications. These child processes are often launched via exploitation of PDF applications or social engineering.
Read More -
Detects attempts to exploit a privilege escalation vulnerability (CVE-2020-1030) related to the print spooler service. Exploitation involves chaining multiple primitives to load an arbitrary DLL into the print spooler process running as SYSTEM.
Read More -
Suspicious ScreenConnect Client Child Process
Identifies suspicious processes being spawned by the ScreenConnect client processes. This activity may indicate execution abusing unauthorized access to the ScreenConnect remote access software.
Read More -
Uncommon Registry Persistence Change
Detects changes to registry persistence keys that are not commonly used or modified by legitimate programs. This could be an indication of an adversary's attempt to persist in a stealthy manner.
Read More -
Unsigned DLL loaded by DNS Service
Identifies unusual DLLs loaded by the DNS Server process, potentially indicating the abuse of the ServerLevelPluginDll functionality. This can lead to privilege escalation and remote code execution with SYSTEM privileges.
Read More -
Identifies a suspicious child process of the Windows virtual system process, which could indicate code injection.
Read More -
Unusual Child Process of dns.exe
Oct 21, 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 ·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.
Read More -
Volume Shadow Copy Deletion via WMIC
Oct 21, 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 ·Identifies use of wmic.exe for shadow copy deletion on endpoints. This commonly occurs in tandem with ransomware or other destructive attacks.
Read More -
Identifies modifications to the Windows Defender registry settings to disable the service or set the service to be started manually.
Read More -
Identifies when the SYSTEM account uses an account discovery utility. This could be a sign of discovery activity after an adversary has achieved privilege escalation.
Read More -
Adding Hidden File Attribute via Attrib
Oct 15, 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 ·Adversaries can add the 'hidden' attribute to files to hide them from the user in an attempt to evade detection.
Read More -
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.
Read More -
Identifies the creation of an Alternate Data Stream (ADS) at a volume root directory, which can indicate the attempt to hide tools and malware, as ADSs created in this directory are not displayed by system utilities.
Read More -
Detects attempts to install or use Kali Linux via Windows Subsystem for Linux. Adversaries may enable and use WSL for Linux to avoid detection.
Read More -
Identifies the install of browser extensions. Malicious browser extensions can be installed via app store downloads masquerading as legitimate extensions, social engineering, or by an adversary that has already compromised a system.
Read More -
Bypass UAC via Event Viewer
Oct 15, 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 ·Identifies User Account Control (UAC) bypass via eventvwr.exe. Attackers bypass UAC to stealthily execute code with elevated permissions.
Read More -
Clearing Windows Console History
Oct 15, 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 ·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.
Read More -
Clearing Windows Event Logs
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.
Read More -
Code Signing Policy Modification Through Built-in tools
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.
Read More -
Identifies attempts to disable the code signing policy through the registry. 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.
Read More -
Identifies cmd.exe making a network connection. Adversaries could abuse cmd.exe to download or execute malware from a remote URL.
Read More -
Identifies command shell activity started via RunDLL32, which is commonly abused by attackers to host malicious code.
Read More -
Conhost Spawned By Suspicious Parent Process
Oct 15, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Execution Tactic: Defense Evasion Tactic: Privilege Escalation Resources: Investigation Guide Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: Sysmon Data Source: Microsoft Defender for Endpoint Data Source: SentinelOne ·Detects when the Console Window Host (conhost.exe) process is spawned by a suspicious parent process, which could be indicative of code injection.
Read More -
Connection to Commonly Abused Free SSL Certificate Providers
Identifies unusual processes connecting to domains using known free SSL certificates. Adversaries may employ a known encryption algorithm to conceal command and control traffic.
Read More -
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.
Read More -
Identifies the creation of a hidden local user account by appending the dollar sign to the account name. This is sometimes done by attackers to increase access to a system and avoid appearing in the results of accounts listing using the net users command.
Read More -
Detects the creation or modification of a new Group Policy based scheduled task or service. These methods are used for legitimate system administration, but can also be abused by an attacker with domain admin permissions to execute a malicious payload remotely on all or a subset of the domain joined machines.
Read More -
Identifies the creation or modification of Domain Backup private keys. Adversaries may extract the Data Protection API (DPAPI) domain backup key from a Domain Controller (DC) to be able to decrypt any domain user master key file.
Read More -
Identifies the creation or modification of a local trusted root certificate in Windows. The install of a malicious root certificate would allow an attacker the ability to masquerade malicious files as valid signed components from any entity (for example, Microsoft). It could also allow an attacker to decrypt SSL traffic.
Read More -
Credential Acquisition via Registry Hive Dumping
Identifies attempts to export a registry hive which may contain credentials using the Windows reg.exe tool.
Read More -
Delete Volume USN Journal with Fsutil
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.
Read More -
Identifies use of the wbadmin.exe to delete the backup catalog. Ransomware and other malware may do this to prevent system recovery.
Read More -
Disable Windows Event and Security Logs Using Built-in Tools
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.
Read More -
Disable Windows Firewall Rules via Netsh
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.
Read More -
User Account Control (UAC) can help mitigate the impact of malware on Windows hosts. With UAC, apps and tasks always run in the security context of a non-administrator account, unless an administrator specifically authorizes administrator-level access to the system. This rule identifies registry value changes to bypass User Access Control (UAC) protection.
Read More -
Disabling Windows Defender Security Settings via PowerShell
Oct 15, 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 ·Identifies use of the Set-MpPreference PowerShell command to disable or weaken certain Windows Defender settings.
Read More -
Identifies changes to the DNS Global Query Block List (GQBL), a security feature that prevents the resolution of certain DNS names often exploited in attacks like WPAD spoofing. Attackers with certain privileges, such as DNSAdmins, can modify or disable the GQBL, allowing exploitation of hosts running WPAD with default settings for privilege escalation and lateral movement.
Read More -
Identifies when a user enables DNS-over-HTTPS. This can be used to hide internet activity or the process of exfiltrating data. With this enabled, an organization will lose visibility into data such as query type, response, and originating IP, which are used to determine bad actors.
Read More -
Enable Host Network Discovery via Netsh
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.
Read More -
Identifies registry write modifications to hide an encoded portable executable. This could be indicative of adversary defense evasion by avoiding the storing of malicious content directly on disk.
Read More -
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.
Read More -
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.
Read More -
Identifies native Windows host and network enumeration commands spawned by the Windows Management Instrumentation Provider Service (WMIPrvSE).
Read More -
Masquerading can allow an adversary to evade defenses and better blend in with the environment. One way it occurs is when the name or location of a file is manipulated as a means of tricking a user into executing what they think is a benign file type but is actually executable code.
Read More -
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.
Read More -
Identifies a suspicious file that was written by a PDF reader application and subsequently executed. These processes are often launched via exploitation of PDF applications.
Read More -
Identifies execution of suspicious persistent programs (scripts, rundll32, etc.) by looking at process lineage and command line usage.
Read More -
Identifies the creation, change, or deletion of a DLL module within a Windows SxS local folder. Adversaries may abuse shared modules to execute malicious payloads by instructing the Windows module loader to load DLLs from arbitrary local paths.
Read More -
Execution via MSSQL xp_cmdshell Stored Procedure
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.
Read More -
An adversary can use the Windows command line debugging utility cdb.exe to execute commands or shellcode. This rule looks for those instances and where the cdb.exe binary is outside of the normal WindowsKit installation paths.
Read More -
File Creation Time Changed
Identifies modification of a file creation time. Adversaries may modify file time attributes to blend malicious content with existing files. Timestomping is a technique that modifies the timestamps of a file often to mimic files that are in trusted directories.
Read More -
Identifies the enable of the full user-mode dumps feature system-wide. This feature allows Windows Error Reporting (WER) to collect data after an application crashes. This setting is a requirement for the LSASS Shtinkering attack, which fakes the communication of a crash on LSASS, generating a dump of the process memory, which gives the attacker access to the credentials present on the system without having to bring malware to the system. This setting is not enabled by default, and applications must create their registry subkeys to hold settings that enable them to collect dumps.
Read More -
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.
Read More -
Detects files creation and modification on the host system from the the Windows Subsystem for Linux. Adversaries may enable and use WSL for Linux to avoid detection.
Read More -
IIS HTTP Logging Disabled
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.
Read More -
The Debugger and SilentProcessExit registry keys can allow an adversary to intercept the execution of files, causing a different process to be executed. This functionality can be abused by an adversary to establish persistence.
Read More -
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.
Read More -
Incoming DCOM Lateral Movement via MSHTA
Identifies the use of Distributed Component Object Model (DCOM) to execute commands from a remote host, which are launched via the HTA Application COM Object. This behavior may indicate an attacker abusing a DCOM application to move laterally while attempting to evade detection.
Read More -
Identifies the use of Distributed Component Object Model (DCOM) to run commands from a remote host, which are launched via the MMC20 Application COM Object. This behavior may indicate an attacker abusing a DCOM application to move laterally.
Read More -
Incoming DCOM Lateral Movement with ShellBrowserWindow or ShellWindows
Identifies use of Distributed Component Object Model (DCOM) to run commands from a remote host, which are launched via the ShellBrowserWindow or ShellWindows Application COM Object. This behavior may indicate an attacker abusing a DCOM application to stealthily move laterally.
Read More -
Identifies remote execution via Windows PowerShell remoting. Windows PowerShell remoting allows a user to run any Windows PowerShell command on one or more remote computers. This could be an indication of lateral movement.
Read More -
Incoming Execution via WinRM Remote Shell
Identifies remote execution via Windows Remote Management (WinRM) remote shell on a target host. This could be an indication of lateral movement.
Read More -
Identifies the installation of custom Application Compatibility Shim databases. This Windows functionality has been abused by attackers to stealthily gain persistence and arbitrary code execution in legitimate Windows processes.
Read More -
Identifies registry modifications related to the Windows Security Support Provider (SSP) configuration. Adversaries may abuse this to establish persistence in an environment.
Read More -
InstallUtil Process Making Network Connections
Identifies InstallUtil.exe making outbound network connections. This may indicate adversarial activity as InstallUtil is often leveraged by adversaries to execute code and evade detection.
Read More -
Identifies the creation of .kirbi files. The creation of this kind of file is an indicator of an attacker running Kerberos ticket dump utilities, such as Mimikatz, and precedes attacks such as Pass-The-Ticket (PTT), which allows the attacker to impersonate users using Kerberos tickets.
Read More -
Identifies suspicious file creations in the startup folder of a remote system. An adversary could abuse this to move laterally by dropping a malicious script or executable that will be executed after a reboot or user logon.
Read More -
Identifies registry modification to the LocalAccountTokenFilterPolicy policy. If this value exists (which doesn't by default) and is set to 1, then remote connections from all local members of Administrators are granted full high-integrity tokens during negotiation.
Read More -
Local Scheduled Task Creation
Indicates the creation of a scheduled task. Adversaries can use these to establish persistence, move laterally, and/or escalate privileges.
Read More -
Identifies the creation of a Local Security Authority Subsystem Service (lsass.exe) default memory dump. This may indicate a credential access attempt via trusted system utilities such as Task Manager (taskmgr.exe) and SQL Dumper (sqldumper.exe) or known pentesting tools such as Dumpert and AndrewSpecial.
Read More -
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.
Read More -
Microsoft Build Engine Started by an Office Application
Oct 15, 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 ·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.
Read More -
An instance of MSBuild, the Microsoft Build Engine, was started after being renamed. This is uncommon behavior and may indicate an attempt to run unnoticed or undetected.
Read More -
Microsoft Exchange Server UM Spawning Suspicious Processes
Oct 15, 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 ·Identifies suspicious processes being spawned by the Microsoft Exchange Server Unified Messaging (UM) service. This activity has been observed exploiting CVE-2021-26857.
Read More -
Microsoft Exchange Server UM Writing Suspicious Files
Identifies suspicious files being written by the Microsoft Exchange Server Unified Messaging (UM) service. This activity has been observed exploiting CVE-2021-26858.
Read More -
Identifies suspicious processes being spawned by the Microsoft Exchange Server worker process (w3wp). This activity may indicate exploitation activity or access to an existing web shell backdoor.
Read More -
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.
Read More -
Identifies when one or more features on Microsoft Defender are disabled. Adversaries may disable or tamper with Microsoft Defender features to evade detection and conceal malicious behavior.
Read More -
Identifies modifications of the AmsiEnable registry key to 0, which disables the Antimalware Scan Interface (AMSI). An adversary can modify this key to disable AMSI protections.
Read More -
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.
Read More -
Identifies attempts to modify the WDigest security provider in the registry to force the user's password to be stored in clear text in memory. This behavior can be indicative of an adversary attempting to weaken the security configuration of an endpoint. Once the UseLogonCredential value is modified, the adversary may attempt to dump clear text passwords from memory.
Read More -
Identifies the use of net.exe to mount a WebDav or hidden remote share. This may indicate lateral movement or preparation for data exfiltration.
Read More -
Microsoft Office Products offer options for users and developers to control the security settings for running and using Macros. Adversaries may abuse these security settings to modify the default behavior of the Office Application to trust future macros and/or disable security warnings, which could increase their chances of establishing persistence.
Read More -
Identifies MsBuild.exe making outbound network connections. This may indicate adversarial activity as MsBuild is often leveraged by adversaries to execute code and evade detection.
Read More -
Mshta Making Network Connections
Identifies Mshta.exe making outbound network connections. This may indicate adversarial activity, as Mshta is often leveraged by adversaries to execute malicious scripts and evade detection.
Read More -
Identifies the execution of an MsiExec service child process followed by network or dns lookup activity. Adversaries may abuse Windows Installers for initial access and delivery of malware.
Read More -
Identifies the addition of a Netsh Helper DLL, netsh.exe supports the addition of these DLLs to extend its functionality. Attackers may abuse this mechanism to execute malicious payloads every time the utility is executed, which can be done by administrators or a scheduled task.
Read More -
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).
Read More -
Network Connection via MsXsl
Identifies msxsl.exe making a network connection. This may indicate adversarial activity as msxsl.exe is often leveraged by adversaries to execute malicious scripts and evade detection.
Read More -
Identifies the native Windows tools regsvr32.exe, regsvr64.exe, RegSvcs.exe, or RegAsm.exe making a network connection. This may be indicative of an attacker bypassing allowlists or running arbitrary scripts via a signed Microsoft binary.
Read More -
Binaries signed with trusted digital certificates can execute on Windows systems protected by digital signature validation. Adversaries may use these binaries to 'live off the land' and execute malicious files that could bypass application allowlists and signature validation.
Read More -
Identifies the attempt to disable Network-Level Authentication (NLA) via registry modification. Network Level Authentication (NLA) is a feature on Windows that provides an extra layer of security for Remote Desktop (RDP) connections, as it requires users to authenticate before allowing a full RDP session. Attackers can disable NLA to enable persistence methods that require access to the Windows sign-in screen without authenticating, such as Accessibility Features persistence methods, like Sticky Keys.
Read More -
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.
Read More -
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.
Read More -
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.
Read More -
Identifies NullSessionPipe registry modifications that specify which pipes can be accessed anonymously. This could be indicative of adversary lateral movement preparation by making the added pipe available to everyone.
Read More -
Outbound Scheduled Task Activity via PowerShell
Identifies the PowerShell process loading the Task Scheduler COM DLL followed by an outbound RPC network connection within a short time period. This may indicate lateral movement or remote discovery via scheduled tasks.
Read More -
Identifies modifications in registry keys associated with abuse of the Outlook Home Page functionality for command and control or persistence.
Read More -
Identifies use of the Windows file system utility (fsutil.exe) to gather information about attached peripheral devices and components connected to a computer system.
Read More -
An adversary can use the Background Intelligent Transfer Service (BITS) SetNotifyCmdLine method to execute a program that runs after a job finishes transferring data or after a job enters a specified state in order to persist on a system.
Read More -
Identifies a persistence mechanism that utilizes the NtSetValueKey native API to create a hidden (null terminated) registry key. An adversary may use this method to hide from system utilities such as the Registry Editor (regedit).
Read More -
Detects attempts to establish persistence on an endpoint by abusing Microsoft Office add-ins.
Read More -
Detects attempts to establish persistence on an endpoint by installing a rogue Microsoft Outlook VBA Template.
Read More -
Identifies the creation or modification of a PowerShell profile. PowerShell profile is a script that is executed when PowerShell starts to customize the user environment, which can be abused by attackers to persist in a environment where PowerShell is common.
Read More -
A job can be used to schedule programs or scripts to be executed at a specified date and time. Adversaries may abuse task scheduling functionality to facilitate initial or recurring execution of malicious code.
Read More -
Detects the successful hijack of Microsoft Compatibility Appraiser scheduled task to establish persistence with an integrity level of system.
Read More -
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.
Read More -
Identifies script engines creating files in the Startup folder, or the creation of script files in the Startup folder. Adversaries may abuse this technique to maintain persistence in an environment.
Read More -
Port Forwarding Rule Addition
Oct 15, 2024 · Domain: Endpoint OS: Windows Use Case: Threat Detection Tactic: Command and Control Tactic: Defense Evasion Resources: Investigation Guide Data Source: Elastic Endgame Data Source: Elastic Defend Data Source: Sysmon Data Source: SentinelOne Data Source: Microsoft Defender for Endpoint ·Identifies the creation of a new port forwarding rule. An adversary may abuse this technique to bypass network segmentation restrictions.
Read More -
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.
Read More -
Potential Credential Access via DuplicateHandle in LSASS
Identifies suspicious access to an LSASS handle via DuplicateHandle from an unknown call trace module. This may indicate an attempt to bypass the NtOpenProcess API to evade detection and dump LSASS memory for credential access.
Read More -
Potential Credential Access via LSASS Memory Dump
Identifies suspicious access to LSASS handle from a call trace pointing to DBGHelp.dll or DBGCore.dll, which both export the MiniDumpWriteDump method that can be used to dump LSASS memory content in preparation for credential access.
Read More -
Potential Credential Access via Renamed COM+ Services DLL
Identifies suspicious renamed COMSVCS.DLL Image Load, which exports the MiniDump function that can be used to dump a process memory. This may indicate an attempt to dump LSASS memory while bypassing command-line based detection in preparation for credential access.
Read More -
An instance of MSBuild, the Microsoft Build Engine, loaded DLLs (dynamically linked libraries) responsible for Windows credential management. This technique is sometimes used for credential dumping.
Read More -
Identifies a Windows trusted program that is known to be vulnerable to DLL Search Order Hijacking starting after being renamed or from a non-standard path. This is uncommon behavior and may indicate an attempt to evade defenses via side-loading a malicious DLL within the memory space of one of those processes.
Read More -
Identifies an instance of a Windows trusted program that is known to be vulnerable to DLL Search Order Hijacking starting after being renamed or from a non-standard path. This is uncommon behavior and may indicate an attempt to evade defenses via side loading a malicious DLL within the memory space of one of those processes.
Read More -
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.
Read More -
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.
Read More -
Potential File Download via a Headless Browser
Oct 15, 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 ·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.
Read More -
Potential File Transfer via Certreq
Oct 15, 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 ·Identifies Certreq making an HTTP Post request. Adversaries could abuse Certreq to download files or upload data to a remote URL.
Read More -
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.
Read More -
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.
Read More -
Windows contains accessibility features that may be launched with a key combination before a user has logged in. An adversary can modify the way these programs are launched to get a command prompt or backdoor without logging in to the system.
Read More -
Identifies modification of the Time Provider. Adversaries may establish persistence by registering and enabling a malicious DLL as a time provider. Windows uses the time provider architecture to obtain accurate time stamps from other network devices or clients in the network. Time providers are implemented in the form of a DLL file which resides in the System32 folder. The service W32Time initiates during the startup of Windows and loads w32time.dll.
Read More -
Identifies a privilege escalation attempt via exploiting CVE-2022-38028 to hijack the print spooler service execution.
Read More -
Identifies registry modifications to default services that could enable privilege escalation to SYSTEM. Attackers with privileges from groups like Server Operators may change the ImagePath of services to executables under their control or to execute commands.
Read More -
Identifies the modification of the Remote Desktop Protocol (RDP) Shadow registry or the execution of processes indicative of an active RDP shadowing session. An adversary may abuse the RDP Shadowing feature to spy on or control other users active RDP sessions.
Read More -
Detects file name patterns generated by the use of Sysinternals SDelete utility to securely delete a file via multiple file overwrite and rename operations.
Read More -
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.
Read More -
Identifies suspicious instances of the Windows Error Reporting process (WerFault.exe or Wermgr.exe) with matching command-line and process executable values performing outgoing network connections. This may be indicative of a masquerading attempt to evade suspicious child process behavior detections.
Read More -
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.
Read More -
Identifies attempts to disable PowerShell Script Block Logging via registry modification. Attackers may disable this logging to conceal their activities in the host and evade detection.
Read More -
Privilege Escalation via Named Pipe Impersonation
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.
Read More -
Privilege Escalation via Rogue Named Pipe Impersonation
Identifies a privilege escalation attempt via rogue named pipe impersonation. An adversary may abuse this technique by masquerading as a known named pipe and manipulating a privileged process to connect to it.
Read More -
Identifies a privilege escalation attempt via a rogue Windows directory (Windir) environment variable. This is a known primitive that is often combined with other vulnerabilities to elevate privileges.
Read More -
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).
Read More -
Process Injection by the Microsoft Build Engine
An instance of MSBuild, the Microsoft Build Engine, created a thread in another process. This technique is sometimes used to evade detection or elevate privileges.
Read More -
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.
Read More -
Identifies use of the SysInternals tool PsExec.exe making a network connection. This could be an indication of lateral movement.
Read More -
RDP Enabled via Registry
Identifies registry write modifications to enable Remote Desktop Protocol (RDP) access. This could be indicative of adversary lateral movement preparation.
Read More -
Detects attempts to maintain persistence by creating registry keys using AppCert DLLs. AppCert DLLs are loaded by every process using the common API functions to create processes.
Read More -
Registry Persistence via AppInit DLL
AppInit DLLs are dynamic-link libraries (DLLs) that are loaded into every process that creates a user interface (loads user32.dll) on Microsoft Windows operating systems. The AppInit DLL mechanism is used to load custom code into user-mode processes, allowing for the customization of the user interface and the behavior of Windows-based applications. Attackers who add those DLLs to the registry locations can execute code with elevated privileges, similar to process injection, and provide a solid and constant persistence on the machine.
Read More -
Remote Desktop Enabled in Windows Firewall by Netsh
Identifies use of the network shell utility (netsh.exe) to enable inbound Remote Desktop Protocol (RDP) connections in the Windows Firewall.
Read More -
Identifies a remote file copy attempt to a hidden network share. This may indicate lateral movement or data staging activity.
Read More -
Remote File Download via Desktopimgdownldr Utility
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.
Read More -
Remote File Download via MpCmdRun
Identifies the Windows Defender configuration utility (MpCmdRun.exe) being used to download a remote file.
Read More -
Identifies built-in Windows script interpreters (cscript.exe or wscript.exe) being used to download an executable file from a remote destination.
Read More -
Identifies remote scheduled task creations on a target host. This could be indicative of adversary lateral movement.
Read More -
Identifies remote execution of Windows services over remote procedure call (RPC). This could be indicative of lateral movement, but will be noisy if commonly done by administrators.
Read More -
Identifies a suspicious AutoIt process execution. Malware written as an AutoIt script tends to rename the AutoIt executable to avoid detection.
Read More -
Identifies the execution of a process with a single character process name, differing from the original file name. This is often done by adversaries while staging, executing temporary utilities, or trying to bypass security detections based on the process name.
Read More -
A scheduled task was created by a Windows script via cscript.exe, wscript.exe or powershell.exe. This can be abused by an adversary to establish persistence.
Read More -
Identifies attempts to enable the Windows scheduled tasks AT command via the registry. Attackers may use this method to move laterally or persist locally. The AT command has been deprecated since Windows 8 and Windows Server 2012, but still exists for backwards compatibility.
Read More -
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.
Read More -
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.
Read More -
Service Command Lateral Movement
Identifies use of sc.exe to create, modify, or start services on remote hosts. This could be indicative of adversary lateral movement but will be noisy if commonly done by admins.
Read More -
Identifies DACL modifications to deny access to a service, making it unstoppable, or hide it from system and users.
Read More -
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.
Read More -
Identifies a SolarWinds binary modifying the start type of a service to be disabled. An adversary may abuse this technique to manipulate relevant security services.
Read More -
Identifies files written to or modified in the startup folder by commonly abused processes. Adversaries may use this technique to maintain persistence.
Read More -
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.
Read More -
Identifies the creation of the Antimalware Scan Interface (AMSI) DLL in an unusual location. This may indicate an attempt to bypass AMSI by loading a rogue AMSI module instead of the legit one.
Read More -
Suspicious CertUtil Commands
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.
Read More -
Identifies suspicious command execution (cmd) via Windows Management Instrumentation (WMI) on a remote host. This could be indicative of adversary lateral movement.
Read More -
Identifies the loading of a non Microsoft signed DLL that is missing on a default Windows install (phantom DLL) or one that can be loaded from a different location by a native Windows process. This may be abused to persist or elevate privileges via privileged file write vulnerabilities.
Read More -
A suspicious Endpoint Security parent process was detected. This may indicate a process hollowing or other form of code injection.
Read More -
Identifies when a script interpreter or signed binary is launched via a non-standard working directory. An attacker may use this technique to evade defenses.
Read More -
Suspicious Execution from INET Cache
Identifies the execution of a process with arguments pointing to the INetCache Folder. Adversaries may deliver malicious content via WININET during initial access.
Read More -
Identifies execution of common Microsoft Office applications to launch an Office Add-In from a suspicious path or with an unusual parent process. This may indicate an attempt to get initial access via a malicious phishing MS Office Add-In.
Read More -
Detects Linux Bash commands from the the Windows Subsystem for Linux. Adversaries may enable and use WSL for Linux to avoid detection.
Read More -
Identifies a suspicious Windows explorer child process. Explorer.exe can be abused to launch malicious scripts or executables from a trusted parent process.
Read More -
Identifies a suspicious image load (taskschd.dll) from Microsoft Office processes. This behavior may indicate adversarial activity where a scheduled task is configured via Windows Component Object Model (COM). This technique can be used to configure persistence and evade monitoring by avoiding the usage of the traditional Windows binary (schtasks.exe) used to manage scheduled tasks.
Read More -
Identifies the creation of a suspicious ImagePath value. This could be an indication of an adversary attempting to stealthily persist or escalate privileges through abnormal service creation.
Read More -
Identifies suspicious processes being spawned by the JetBrain TeamCity process. This activity could be related to JetBrains remote code execution vulnerabilities.
Read More -
Suspicious LSASS Access via MalSecLogon
Identifies suspicious access to LSASS handle from a call trace pointing to seclogon.dll and with a suspicious access rights value. This may indicate an attempt to leak an LSASS handle via abusing the Secondary Logon service in preparation for credential access.
Read More -
Suspicious Lsass Process Access
Identifies access attempts to LSASS handle, this may indicate an attempt to dump credentials from Lsass memory.
Read More -
Identifies a suspicious managed code hosting process which could indicate code injection or other form of suspicious code execution.
Read More -
Identifies potential abuse of the Microsoft Diagnostics Troubleshooting Wizard (MSDT) to proxy malicious command or binary execution via malicious process arguments.
Read More -
Suspicious MS Office Child Process
Oct 15, 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 ·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.
Read More -
Identifies suspicious PowerShell execution spawning from Windows Script Host processes (cscript or wscript.exe).
Read More -
Detects deletion of print driver files by an unusual process. This may indicate a clean up attempt post successful privilege escalation via Print Spooler service related vulnerabilities.
Read More -
Identifies suspicious process access events from an unknown memory region. Endpoint security solutions usually hook userland Windows APIs in order to decide if the code that is being executed is malicious or not. It's possible to bypass hooked functions by writing malicious functions that call syscalls directly.
Read More -
Suspicious Process Creation CallTrace
Identifies when a process is created and immediately accessed from an unknown memory code region and by the same parent process. This may indicate a code injection attempt.
Read More -
Identifies suspicious psexec activity which is executing from the psexec service that has been renamed, possibly to evade detection.
Read More -
Identifies suspicious Image Loading of the Remote Desktop Services ActiveX Client (mstscax), this may indicate the presence of RDP lateral movement capability.
Read More -
Identifies scrobj.dll loaded into unusual Microsoft processes. This usually means a malicious scriptlet is being executed in the target process.
Read More -
Suspicious Startup Shell Folder Modification
Identifies suspicious startup shell folder modifications to change the default Startup directory in order to bypass detections monitoring file creation in the Windows Startup folder.
Read More -
Suspicious WerFault Child Process
A suspicious WerFault child process was detected, which may indicate an attempt to run via the SilentProcessExit registry key manipulation. Verify process details such as command line, network connections and file writes.
Read More -
Identifies the execution of the Windows Command Shell process (cmd.exe) with suspicious argument values. This behavior is often observed during malware installation.
Read More -
Identifies the execution of PowerShell with suspicious argument values. This behavior is often observed during malware installation leveraging PowerShell.
Read More -
Suspicious WMI Event Subscription Created
Detects the creation of a WMI Event Subscription. Attackers can abuse this mechanism for persistence or to elevate to SYSTEM privileges.
Read More -
Identifies a suspicious image load (wmiutils.dll) from Microsoft Office processes. This behavior may indicate adversarial activity where child processes are spawned via Windows Management Instrumentation (WMI). This technique can be used to execute code and evade traditional parent/child processes spawned from Microsoft Office products.
Read More -
Identifies WMIC allowlist bypass techniques by alerting on suspicious execution of scripts. When WMIC loads scripting libraries it may be indicative of an allowlist bypass.
Read More -
Symbolic Link to Shadow Copy Created
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.
Read More -
UAC Bypass Attempt via Elevated COM Internet Explorer Add-On Installer
Identifies User Account Control (UAC) bypass attempts by abusing an elevated COM Interface to launch a malicious program. Attackers may attempt to bypass UAC to stealthily execute code with elevated permissions.
Read More -
Identifies attempts to bypass User Account Control (UAC) via DLL side-loading. Attackers may attempt to bypass UAC to stealthily execute code with elevated permissions.
Read More -
UAC Bypass Attempt via Windows Directory Masquerading
Oct 15, 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 ·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.
Read More -
UAC Bypass Attempt with IEditionUpgradeManager Elevated COM Interface
Identifies attempts to bypass User Account Control (UAC) by abusing an elevated COM Interface to launch a rogue Windows ClipUp program. Attackers may attempt to bypass UAC to stealthily execute code with elevated permissions.
Read More -
UAC Bypass via DiskCleanup Scheduled Task Hijack
Oct 15, 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 ·Identifies User Account Control (UAC) bypass via hijacking DiskCleanup Scheduled Task. Attackers bypass UAC to stealthily execute code with elevated permissions.
Read More -
Identifies User Account Control (UAC) bypass attempts via the ICMLuaUtil Elevated COM interface. Attackers may attempt to bypass UAC to stealthily execute code with elevated permissions.
Read More -
UAC Bypass via Windows Firewall Snap-In Hijack
Oct 15, 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: Sysmon Data Source: Microsoft Defender for Endpoint Data Source: SentinelOne ·Identifies attempts to bypass User Account Control (UAC) by hijacking the Microsoft Management Console (MMC) Windows Firewall snap-in. Attackers bypass UAC to stealthily execute code with elevated permissions.
Read More -
Untrusted DLL Loaded by Azure AD Sync Service
Identifies the load of a DLL without a valid code signature by the Azure AD Sync process, which may indicate an attempt to persist or collect sensitive credentials passing through the Azure AD synchronization server.
Read More -
Unusual Child Processes of RunDLL32
Identifies child processes of unusual instances of RunDLL32 where the command line parameters were suspicious. Misuse of RunDLL32 could indicate malicious activity.
Read More -
Unusual Executable File Creation by a System Critical Process
Identifies an unexpected executable file being created or modified by a Windows system critical process, which may indicate activity related to remote code execution or other forms of exploitation.
Read More -
Unusual Execution via Microsoft Common Console File
Identifies the execution of a child process from a Microsoft Common Console file. Adversaries may embed a malicious command in an MSC file in order to trick victims into executing malicious commands.
Read More -
Identifies suspicious creation of Alternate Data Streams on highly targeted files. This is uncommon for legitimate files and sometimes done by adversaries to hide malware.
Read More -
Identifies an unexpected file being modified by dns.exe, the process responsible for Windows DNS Server services, which may indicate activity related to remote code execution or other forms of exploitation.
Read More -
Identifies network activity from unexpected system applications. This may indicate adversarial activity as these applications are often leveraged by adversaries to execute code and evade detection.
Read More -
Unusual Network Connection via DllHost
Identifies unusual instances of dllhost.exe making outbound network connections. This may indicate adversarial Command and Control activity.
Read More -
Identifies unusual instances of rundll32.exe making outbound network connections. This may indicate adversarial Command and Control activity.
Read More -
Identifies a suspicious parent child process relationship with cmd.exe descending from an unusual process.
Read More -
Unusual Parent-Child Relationship
Identifies Windows programs run from unexpected parent processes. This could indicate masquerading or other strange activity on a system.
Read More -
Identifies processes modifying the services registry key directly, instead of through the expected Windows APIs. This could be an indication of an adversary attempting to stealthily persist through abnormal service creation or modification of an existing service.
Read More -
Identifies processes running from an Alternate Data Stream. This is uncommon for legitimate processes and sometimes done by adversaries to hide malware.
Read More -
Identifies network activity from unexpected system applications. This may indicate adversarial activity as these applications are often leveraged by adversaries to execute code and evade detection.
Read More -
Identifies unusual child processes of Service Host (svchost.exe) that traditionally do not spawn any child processes. This may indicate a code injection or an equivalent form of exploitation.
Read More -
User Account Creation
Identifies attempts to create new users. This is sometimes done by attackers to increase access or establish persistence on a system or domain.
Read More -
Identifies use of vssadmin.exe for shadow copy deletion or resizing on endpoints. This commonly occurs in tandem with ransomware or other destructive attacks.
Read More -
Volume Shadow Copy Deletion via PowerShell
Oct 15, 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 ·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.
Read More -
Web Shell Detection: Script Process Child of Common Web Processes
Oct 15, 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 ·Identifies suspicious commands executed via a web server, which may suggest a vulnerability and remote shell access.
Read More -
Identifies the registration of a Werfault Debugger. Attackers may abuse this mechanism to execute malicious payloads every time the utility is executed with the "-pr" parameter.
Read More -
Windows Defender Exclusions Added via PowerShell
Identifies modifications to the Windows Defender configuration settings using PowerShell to add exclusions at the folder directory or process level.
Read More -
Windows Firewall Disabled via PowerShell
Oct 15, 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 ·Identifies when the Windows Firewall is disabled using PowerShell cmdlets, which can help attackers evade network constraints, like internet and network lateral communication restrictions.
Read More -
Windows Script Executing PowerShell
Identifies a PowerShell process launched by either cscript.exe or wscript.exe. Observing Windows scripting processes executing a PowerShell script, may be indicative of malicious activity.
Read More -
Identifies use of the built-in Windows script interpreters (cscript.exe or wscript.exe) being used to execute a process via Windows Management Instrumentation (WMI). This may be indicative of malicious activity.
Read More -
Detects changes to the registry that indicates the install of a new Windows Subsystem for Linux distribution by name. Adversaries may enable and use WSL for Linux to avoid detection.
Read More -
Detects attempts to enable the Windows Subsystem for Linux using Microsoft Dism utility. Adversaries may enable and use WSL for Linux to avoid detection.
Read More -
Wireless Credential Dumping using Netsh Command
Oct 15, 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 ·Identifies attempts to dump Wireless saved access keys in clear text using the Windows built-in utility Netsh.
Read More -
WMI Incoming Lateral Movement
Identifies processes executed via Windows Management Instrumentation (WMI) on a remote host. This could be indicative of adversary lateral movement, but could be noisy if administrators use WMI to remotely manage hosts.
Read More -
Identifies the load of a remote library by the WPS Office promecefpluginhost.exe executable. This may indicate the successful exploitation of CVE-2024-7262 or CVE-2024-7263 via DLL hijack abusing the ksoqing custom protocol handler.
Read More