Query: detection rule: 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 file access to browser credential storage paths by non-browser processes, which may indicate credential access a. Logsource: windows / file_access. Rule: title: Suspicious File Access to Browser Credential Storage id: a1dfd976-4852-41d4-9507-dc6590a3ccd0 status: experimental description: 'Detects file access to browser credential storage paths by non-browser processes, which may indicate credential access attempts. Adversaries may attempt to access browser credential storage to extract sensitive information such as usernames and passwords or cookies. This behavior is often commonly observed in credential stealing malware. ' references: - https://github.com/splunk/security_content/blob/7283ba3723551f46b69dfeb23a63b358afb2cb0e/lookups/browser_app_list.csv?plain=1 - https://fourcore.io/blogs/threat-hunting-browser-credential-stealing author: frack113, X__Junior (Nextron Systems), Swachchhanda Shrawan Poudel (Nextron Systems), Parth-FourCore date: 2025-05-22 tags: - attack.credential-access - attack.t1555.003 - attack.discovery - attack.t1217 logsource: category: file_access product: windows detection: selection_browser_paths: FileName|contains: - \Sputnik\Sputnik - \MapleStudio\ChromePlus - \QIP Surf - \BlackHawk - \7Star\7Star - \CatalinaGroup\Citrio - \Google\Chrome - \Coowon\Coowon - \CocCoc\Browser - \uCozMedia\Uran - \Tencent\QQBrowser - \Orbitum - \Slimjet - \Iridium - \Vivaldi - \Chromium - \GhostBrowser - \CentBrowser - \Xvast - \Chedot - \SuperBird - \360Browser\Browser - \360Chrome\Chrome - \Comodo\Dragon - \BraveSoftware\Brave-Browser - \Torch - \UCBrowser\ - \Blisk - \Epic Privacy Browser - \Nichrome - \Amigo - \Kometa - \Xpom - \Microsoft\Edge - \Liebao7Default\EncryptedStorage - \AVAST Software\Browser - \Kinza - \Mozilla\SeaMonkey\ - \Comodo\IceDragon\ - \8pecxstudios\Cyberfox\ - \FlashPeak\SlimBrowser\ - \Moonchild Productions\Pale Moon\ selection_browser_subpaths: FileName|contains: - \Profiles\ - \User Data selection_cred_files: - FileName|contains: - \Login Data - \Cookies - \EncryptedStorage - \WebCache\ - FileName|endswith: - cert9.db - cookies.sqlite - formhistory.sqlite - key3.db - key4.db - Login Data.sqlite - logins.json - places.sqlite filter_main_img: Image|endswith: - \Sputnik.exe - \ChromePlus.exe - \QIP Surf.exe - \BlackHawk.exe - \7Star.exe - \Sleipnir5.exe - \Citrio.exe - \Chrome SxS.exe - \Chrome.exe - \Coowon.exe - \CocCocBrowser.exe - \Uran.exe - \QQBrowser.exe - \Orbitum.exe - \Slimjet.exe - \Iridium.exe - \Vivaldi.exe - \Chromium.exe - \GhostBrowser.exe - \CentBrowser.exe - \Xvast.exe - \Chedot.exe - \SuperBird.exe - \360Browser.exe - \360Chrome.exe - \dragon.exe - \brave.e