Suspicious PUA - System Informer Execution (via process_creation)

title: Suspicious PUA - System Informer Execution (via process_creation)
id: 0356315e-b575-51af-a162-a0015dd91607
status: stable
description: This rule detects the execution of System Informer, a task manager tool to view and manipulate processes, kernel options and other low level operations
references:
    - https://attack.mitre.org/techniques/T1543/
    - https://attack.mitre.org/techniques/T1564/
    - https://attack.mitre.org/techniques/T1082/
    - https://github.com/winsiderss/systeminformer
author: Huntrule Team
date: 2026-07-24
tags:
    - attack.persistence
    - attack.privilege-escalation
    - attack.discovery
    - attack.stealth
    - attack.t1082
    - attack.t1564
    - attack.t1543
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        - Image|endswith: '\SystemInformer.exe'
        - OriginalFileName: 'SystemInformer.exe'
        - Description: 'System Informer'
        - Product: 'System Informer'
        - Hashes|contains:
              - 'MD5=19426363A37C03C3ED6FEDF57B6696EC'
              - 'SHA1=8B12C6DA8FAC0D5E8AB999C31E5EA04AF32D53DC'
              - 'SHA256=8EE9D84DE50803545937A63C686822388A3338497CDDB660D5D69CF68B68F287'
              - 'IMPHASH=B68908ADAEB5D662F87F2528AF318F12'
    condition: selection
falsepositives:
    - Unknown
level: medium