Query: Sigma rule for Detects the use of the Group Policy Management Editor (GPME) to modify Default Domain or Default Domain Controllers Grou
Matching passage: Sigma rule: Detects the use of the Group Policy Management Editor (GPME) to modify Default Domain or Default Domain Controllers Grou. Logsource: windows / process_creation. Rule: title: Windows Default Domain GPO Modification via GPME id: dcff7e85-d01f-4eb5-badd-84e2e6be8294 related: - id: e5ac86dd-2da1-454b-be74-05d26c769d7d type: similar status: experimental description: 'Detects the use of the Group Policy Management Editor (GPME) to modify Default Domain or Default Domain Controllers Group Policy Objects (GPOs). Adversaries may leverage GPME to make stealthy changes in these default GPOs to deploy malicious GPOs configurations across the domain without raising suspicion. ' references: - https://www.trendmicro.com/en_us/research/25/i/unmasking-the-gentlemen-ransomware.html - https://adsecurity.org/?p=3377 - https://sdmsoftware.com/general-stuff/launching-the-new-gp-management-editor-from-the-command-line/ - https://www.pentestpartners.com/security-blog/living-off-the-land-gpo-style/ author: TropChaud date: 2025-11-22 tags: - attack.privilege-escalation - attack.defense-impairment - attack.t1484.001 logsource: product: windows category: process_creation detection: selection_mmc: - Image|endswith: \mmc.exe - OriginalFileName: MMC.exe selection_gpme: CommandLine|contains|all: - gpme.msc - 'gpobject:' selection_default_gpos: CommandLine|contains: - 31B2F340-016D-11D2-945F-00C04FB984F9 - 6AC1786C-016F-11D2-945F-00C04FB984F9 condition: all of selection_* falsepositives: - Legitimate use of GPME to modify GPOs level: medium
Near-miss passage: Sigma rule: Detects the deletion of AMSI provider registry key entries in HKLM\Software\Microsoft\AMSI. This technique could be used. Logsource: windows / registry_delete. Rule: title: Removal Of AMSI Provider Registry Keys id: 41d1058a-aea7-4952-9293-29eaaf516465 status: test description: Detects the deletion of AMSI provider registry key entries in HKLM\Software\Microsoft\AMSI. This technique could be used by an attacker in order to disable AMSI inspection. references: - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1562.001/T1562.001.md - https://seclists.org/fulldisclosure/2020/Mar/45 author: frack113 date: 2021-06-07 modified: 2025-10-07 tags: - attack.defense-impairment - attack.t1685 logsource: product: windows category: registry_delete detection: selection: TargetObject|endswith: - '{2781761E-28E0-4109-99FE-B9D127C57AFE}' - '{A7C452EF-8E9F-42EB-9F2B-245613CA0DC9}' filter_main_defender: Image|startswith: - C:\ProgramData\Microsoft\Windows Defender\Platform\ - C:\Program Files\Windows Defender\ - C:\Program Files (x86)\Windows Defender\ Image|endswith: \MsMpEng.exe condition: selection and not 1 of filter_main_* falsepositives: - Unlikely level: high regression_tests_path: regression_data/rules/windows/registry/registry_delete/registry_delete_removal_amsi_registry_key/info.yml simulation: - type: atomic-red-team name: AMSI Bypass - Remove AMSI Provider Reg Key technique: T1562.001 atomic_guid: 13f09b91-c953-438e-845b-b585e51cac9b