sigmamediumHunting

PUA - System Informer Execution

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

MITRE ATT&CK

T1082 T1564 T1543

persistenceprivilege-escalationdiscoverydefense-evasion

Detection Query

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

Author

Florian Roth (Nextron Systems)

Created

2023-05-08

Data Sources

windowsProcess Creation Events

Platforms

windows

References

https://github.com/winsiderss/systeminformer

Tags

attack.persistenceattack.privilege-escalationattack.discoveryattack.defense-evasionattack.t1082attack.t1564attack.t1543

Raw Content

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.defense-evasion
    - 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