Query: write Sigma for Detects execution of "reg.exe" to disable security services such as Windows Defender.
Matching passage: Sigma rule: Detects execution of "reg.exe" to disable security services such as Windows Defender.. Logsource: windows / process_creation. Rule: title: Security Service Disabled Via Reg.EXE id: 5e95028c-5229-4214-afae-d653d573d0ec status: test description: Detects execution of "reg.exe" to disable security services such as Windows Defender. references: - https://twitter.com/JohnLaTwC/status/1415295021041979392 - https://github.com/gordonbay/Windows-On-Reins/blob/e587ac7a0407847865926d575e3c46f68cf7c68d/wor.ps1 - https://vms.drweb.fr/virus/?i=24144899 - https://bidouillesecurity.com/disable-windows-defender-in-powershell/ author: Florian Roth (Nextron Systems), John Lambert (idea), elhoim date: 2021-07-14 modified: 2023-06-05 tags: - attack.defense-impairment - attack.t1685 logsource: category: process_creation product: windows detection: selection_reg_add: CommandLine|contains|all: - reg - add selection_cli_reg_start: CommandLine|contains|all: - d 4 - v Start CommandLine|contains: - \AppIDSvc - \MsMpSvc - \NisSrv - \SecurityHealthService - \Sense - \UsoSvc - \WdBoot - \WdFilter - \WdNisDrv - \WdNisSvc - \WinDefend - \wscsvc - \wuauserv condition: all of selection_* falsepositives: - Unlikely level: high
Near-miss passage: Sigma rule: Detects the execution of Sysinternals ADExplorer with the "-snapshot" flag in order to save a local copy of the active d. Logsource: windows / process_creation. Rule: title: Suspicious Active Directory Database Snapshot Via ADExplorer id: ef61af62-bc74-4f58-b49b-626448227652 related: - id: 9212f354-7775-4e28-9c9f-8f0a4544e664 type: derived status: test description: Detects the execution of Sysinternals ADExplorer with the "-snapshot" flag in order to save a local copy of the active directory database to a suspicious directory. This can be used by attackers to extract data for Bloodhound, usernames for password spraying or use the meta data for social engineering. The snapshot doesn't contain password hashes but there have been cases, where administrators put passwords in the comment field. references: - https://www.documentcloud.org/documents/5743766-Global-Threat-Report-2019.html - https://learn.microsoft.com/de-de/sysinternals/downloads/adexplorer - https://github.com/c3c/ADExplorerSnapshot.py/tree/f700904defac330802bbfedd1d8ffd9248f4ee24 - https://www.packetlabs.net/posts/scattered-spider-is-a-young-ransomware-gang-exploiting-large-corporations/ - https://www.nccgroup.com/us/research-blog/lapsus-recent-techniques-tactics-and-procedures/ - https://trustedsec.com/blog/adexplorer-on-engagements author: Nasreddine Bencherchali (Nextron Systems) date: 2023-03-14 modified: 2025-07-09 tags: - attack.discovery - attack.t1087.002 - attack.t1069.002 - attack.t1482 logsource: category: process_creation product: windows detection: selection_img: - Image|endswith: - \ADExp.exe - \ADExplorer.exe - \ADExplorer64.exe - \ADExplorer64a.exe - OriginalFileName: AdExp - Description: Active Directory Editor - Product: Sysinternals ADExplorer selection_flag: CommandLine|contains: snapshot selection_paths: CommandLine|contains: - \Downloads\ - \Users\Public\ - \AppData\ - \Windows\Temp\ condition: all of selection_* falsepositives: - Unknown level: high