26 lines
738 B
YAML
26 lines
738 B
YAML
title: Potential NT API Stub Patching
|
|
id: b916cba1-b38a-42da-9223-17114d846fd6
|
|
status: experimental
|
|
description: Detects potential NT API stub patching as seen used by the project PatchingAPI
|
|
references:
|
|
- https://github.com/D1rkMtr/UnhookingPatch
|
|
- https://twitter.com/D1rkMtr/status/1611471891193298944?s=20
|
|
author: Tim Burrell
|
|
date: 2023/01/07
|
|
tags:
|
|
- attack.defense_evasion
|
|
- attack.t1562.002
|
|
logsource:
|
|
category: process_access
|
|
product: windows
|
|
detection:
|
|
selection:
|
|
GrantedAccess: '0x1FFFFF'
|
|
CallTrace|startswith: 'C:\Windows\SYSTEM32\ntdll.dll+'
|
|
CallTrace|contains: '|UNKNOWN('
|
|
CallTrace|endswith: ')'
|
|
condition: selection
|
|
falsepositives:
|
|
- Unknown
|
|
level: medium
|