Sysmon Configuration Update

 1title: Sysmon Configuration Update
 2id: 87911521-7098-470b-a459-9a57fc80bdfd
 3status: test
 4description: Detects updates to Sysmon's configuration. Attackers might update or replace the Sysmon configuration with a bare bone one to avoid monitoring without shutting down the service completely
 5references:
 6    - https://learn.microsoft.com/en-us/sysinternals/downloads/sysmon
 7author: Nasreddine Bencherchali (Nextron Systems)
 8date: 2023/03/09
 9modified: 2024/03/13
10tags:
11    - attack.defense_evasion
12    - attack.t1562.001
13logsource:
14    category: process_creation
15    product: windows
16detection:
17    selection_pe:
18        - Image|endswith:
19              - \Sysmon64.exe
20              - \Sysmon.exe
21        - Description: 'System activity monitor'
22    selection_cli:
23        CommandLine|contains|windash: '-c'
24    condition: all of selection_*
25falsepositives:
26    - Legitimate administrators might use this command to update Sysmon configuration.
27level: medium