Sigma rule: Uncommon Sigverif.EXE Child Process

Rule

Title

Uncommon Sigverif.EXE Child Process

Status

test

Level

medium

Author

Nasreddine Bencherchali (Nextron Systems)

Date

2022-08-19

Modified

2024-08-27

File

rules/windows/process_creation/proc_creation_win_sigverif_uncommon_child_process.yml

Commit

ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects uncommon child processes spawning from "sigverif.exe", which could indicate potential abuse of the latter as a living of the land binary in order to proxy execution.

Log source

product

windows

category

process_creation

Detection

selection:
    ParentImage|endswith: '\sigverif.exe'
filter_main_werfault:
    Image:
        - 'C:\Windows\System32\WerFault.exe'
        - 'C:\Windows\SysWOW64\WerFault.exe'
condition: selection and not 1 of filter_main_*

False positives (as the rule lists them)

• Unknown

Tags

• attack.stealth
• attack.t1216

MITRE ATT&CK ids this rule names

• T1216

References

• https://www.hexacorn.com/blog/2018/04/27/i-shot-the-sigverif-exe-the-gui-based-lolbin/
• https://twitter.com/0gtweet/status/1457676633809330184

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_sigverif_uncommon_child_process.yml