sigmamediumHunting

Sysinternals PsSuspend Execution

Detects usage of Sysinternals PsSuspend which can be abused to suspend critical processes

MITRE ATT&CK

privilege-escalationdiscoverypersistence

Detection Query

selection:
  - OriginalFileName: pssuspend.exe
  - Image|endswith:
      - \pssuspend.exe
      - \pssuspend64.exe
condition: selection

Author

Nasreddine Bencherchali (Nextron Systems)

Created

2023-03-23

Data Sources

windowsProcess Creation Events

Platforms

windows

References

Tags

attack.privilege-escalationattack.discoveryattack.persistenceattack.t1543.003

Raw Content

title: Sysinternals PsSuspend Execution
id: 48bbc537-b652-4b4e-bd1d-281172df448f
related:
    - id: 4beb6ae0-f85b-41e2-8f18-8668abc8af78
      type: similar
status: test
description: Detects usage of Sysinternals PsSuspend which can be abused to suspend critical processes
references:
    - https://learn.microsoft.com/en-us/sysinternals/downloads/pssuspend
    - https://twitter.com/0gtweet/status/1638069413717975046
author: Nasreddine Bencherchali (Nextron Systems)
date: 2023-03-23
tags:
    - attack.privilege-escalation
    - attack.discovery
    - attack.persistence
    - attack.t1543.003
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        - OriginalFileName: 'pssuspend.exe'
        - Image|endswith:
              - '\pssuspend.exe'
              - '\pssuspend64.exe'
    condition: selection
falsepositives:
    - Unknown
level: medium