PUA - System Informer Execution

Description

Detects the execution of System Informer, a task manager tool to view and manipulate processes, kernel options and other low level operations

Query · sigma

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

Known false positives

  • System Informer is regularly used legitimately by system administrators or developers. Apply additional filters accordingly
Raw source PUA - System Informer Execution · Sigma
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Published by SigmaHQ/sigma ↗, licensed under Detection Rule License 1.1 ↗. Reproduced here unmodified. 
title: PUA - System Informer Execution
id: 5722dff1-4bdd-4949-86ab-fbaf707e767a
related:
    - id: 811e0002-b13b-4a15-9d00-a613fce66e42
      type: similar
status: test
description: Detects the execution of System Informer, a task manager tool to view and manipulate processes, kernel options and other low level operations
references:
    - https://github.com/winsiderss/systeminformer
author: Florian Roth (Nextron Systems)
date: 2023-05-08
modified: 2024-11-23
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:
              # Note: add other hashes as needed
              # 3.0.11077.6550
              - 'MD5=19426363A37C03C3ED6FEDF57B6696EC'
              - 'SHA1=8B12C6DA8FAC0D5E8AB999C31E5EA04AF32D53DC'
              - 'SHA256=8EE9D84DE50803545937A63C686822388A3338497CDDB660D5D69CF68B68F287'
              - 'IMPHASH=B68908ADAEB5D662F87F2528AF318F12'
    condition: selection
falsepositives:
    - System Informer is regularly used legitimately by system administrators or developers. Apply additional filters accordingly
level: medium

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