Sigma rule: Abused Debug Privilege by Arbitrary Parent Processes

Rule

Title

Abused Debug Privilege by Arbitrary Parent Processes

Status

test

Level

high

Author

Semanur Guneysu @semanurtg, oscd.community

Date

2020-10-28

Modified

2022-11-11

File

rules/windows/process_creation/proc_creation_win_susp_abusing_debug_privilege.yml

Commit

ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detection of unusual child processes by different system processes

Log source

product

windows

category

process_creation

Detection

selection_parent:
    ParentImage|endswith:
        - '\winlogon.exe'
        - '\services.exe'
        - '\lsass.exe'
        - '\csrss.exe'
        - '\smss.exe'
        - '\wininit.exe'
        - '\spoolsv.exe'
        - '\searchindexer.exe'
    User|contains: # covers many language settings
        - 'AUTHORI'
        - 'AUTORI'
selection_img:
    - Image|endswith:
          - '\powershell.exe'
          - '\pwsh.exe'
          - '\cmd.exe'
    - OriginalFileName:
          - 'PowerShell.EXE'
          - 'pwsh.dll'
          - 'Cmd.Exe'
filter:
    CommandLine|contains|all:
        - ' route '
        - ' ADD '
condition: all of selection_* and not filter

False positives (as the rule lists them)

• Unknown

Tags

• attack.privilege-escalation
• attack.t1548

MITRE ATT&CK ids this rule names

• T1548

References

• https://image.slidesharecdn.com/kheirkhabarovoffzonefinal-181117201458/95/hunting-for-privilege-escalation-in-windows-environment-74-638.jpg

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/process_creation/proc_creation_win_susp_abusing_debug_privilege.yml