title: Uncommon Process Access Rights For Target Image
id: a24e5861-c6ca-4fde-a93c-ba9256feddf0
status: test
description: |
Detects process access request to uncommon target images with a "PROCESS_ALL_ACCESS" access mask.
references:
- https://learn.microsoft.com/en-us/windows/win32/procthread/process-security-and-access-rights
author: Nasreddine Bencherchali (Nextron Systems), frack113
date: 2024-05-27
tags:
- attack.privilege-escalation
- attack.stealth
- attack.t1055.011
logsource:
category: process_access
product: windows
detection:
selection:
TargetImage|endswith:
# Note: Add additional uncommon targets to increase coverage.
- '\calc.exe'
- '\calculator.exe'
- '\mspaint.exe'
- '\notepad.exe'
- '\ping.exe'
- '\wordpad.exe'
- '\write.exe'
GrantedAccess: '0x1FFFFF' # PROCESS_ALL_ACCESS - All possible access rights for a process object.
condition: selection
falsepositives:
- Unknown
# Note: please upgrade to a higher level after an initial test/tuning.
level: low