Sigma rule: HackTool - Certify Execution

Rule

Title

HackTool - Certify Execution

Status

test

Level

high

Author

pH-T (Nextron Systems)

Date

2023-04-17

Modified

2023-04-25

File

rules/windows/process_creation/proc_creation_win_hktl_certify.yml

Commit

ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects Certify a tool for Active Directory certificate abuse based on PE metadata characteristics and common command line arguments.

Log source

product

windows

category

process_creation

Detection

selection_img:
    - Image|endswith: '\Certify.exe'
    - OriginalFileName: 'Certify.exe'
    - Description|contains: 'Certify'
selection_cli_commands:
    CommandLine|contains:
        - '.exe cas '
        - '.exe find '
        - '.exe pkiobjects '
        - '.exe request '
        - '.exe download '
selection_cli_options:
    CommandLine|contains:
        - ' /vulnerable'
        - ' /template:'
        - ' /altname:'
        - ' /domain:'
        - ' /path:'
        - ' /ca:'
condition: selection_img or all of selection_cli_*

False positives (as the rule lists them)

• Unknown

Tags

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

MITRE ATT&CK ids this rule names

• T1649

References

• https://github.com/GhostPack/Certify

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_certify.yml