Detectionmediumtest
Uncommon Sigverif.EXE Child Process
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.
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Nasreddine Bencherchali (Nextron Systems)Created Fri Aug 19Updated Tue Aug 277d4aaec2-08ed-4430-8b96-28420e030e04windows
Log Source
WindowsProcess Creation
ProductWindows← raw: windows
CategoryProcess Creation← raw: process_creation
Events generated when a new process is spawned on the system. Covers command-line arguments, parent/child relationships, and process metadata.
Detection Logic
Detection Logic2 selectors
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
Unknown
False positive likelihood has not been assessed. Additional context may be needed during triage.
MITRE ATT&CK
Tactics
Techniques
Rule Metadata
Rule ID
7d4aaec2-08ed-4430-8b96-28420e030e04
Status
test
Level
medium
Type
Detection
Created
Fri Aug 19
Modified
Tue Aug 27
Path
rules/windows/process_creation/proc_creation_win_sigverif_uncommon_child_process.yml
Raw Tags
attack.defense-evasionattack.t1216