Sigma rule: HackTool - Certipy Execution

Rule

Title

HackTool - Certipy Execution

Status

test

Level

high

Author

pH-T (Nextron Systems), Sittikorn Sangrattanapitak

Date

2023-04-17

Modified

2024-10-08

File

rules/windows/process_creation/proc_creation_win_hktl_certipy.yml

Commit

ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects Certipy execution, a tool for Active Directory Certificate Services enumeration and abuse based on PE metadata characteristics and common command line arguments.

Log source

product

windows

category

process_creation

Detection

selection_img:
    - Image|endswith: '\Certipy.exe'
    - OriginalFileName: 'Certipy.exe'
    - Description|contains: 'Certipy'
selection_cli_commands:
    CommandLine|contains:
        - ' account '
        - ' auth '
        # - ' ca ' # Too short to be used with just one CLI
        - ' cert '
        - ' find '
        - ' forge '
        - ' ptt '
        - ' relay '
        - ' req '
        - ' shadow '
        - ' template '
selection_cli_flags:
    CommandLine|contains:
        - ' -bloodhound'
        - ' -ca-pfx '
        - ' -dc-ip '
        - ' -kirbi'
        - ' -old-bloodhound'
        - ' -pfx '
        - ' -target'
        - ' -template'
        - ' -username '
        - ' -vulnerable'
        - 'auth -pfx'
        - 'shadow auto'
        - 'shadow list'
condition: selection_img or all of selection_cli_*

False positives (as the rule lists them)

• Unlikely

Tags

• attack.discovery
• attack.credential-access
• attack.t1649

MITRE ATT&CK ids this rule names

• T1649

References

• https://github.com/ly4k/Certipy
• https://research.ifcr.dk/certipy-4-0-esc9-esc10-bloodhound-gui-new-authentication-and-request-methods-and-more-7237d88061f7

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_hktl_certipy.yml