Rorschach Ransomware Execution Activity


Description

Detects Rorschach ransomware execution activity

Query · sigma

selection:
  Image|endswith:
  - \bcdedit.exe
  - \net.exe
  - \net1.exe
  - \netsh.exe
  - \wevtutil.exe
  - \vssadmin.exe
  CommandLine|contains: '11111111'
condition: selection

Known false positives

  • Unlikely
Raw source Rorschach Ransomware Execution Activity · Sigma
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Published by SigmaHQ/sigma ↗, licensed under Detection Rule License 1.1 ↗. Reproduced here unmodified.
title: Rorschach Ransomware Execution Activity
id: 0e9e6c63-1350-48c4-9fa1-7ccb235edc68
status: test
description: Detects Rorschach ransomware execution activity
references:
    - https://research.checkpoint.com/2023/rorschach-a-new-sophisticated-and-fast-ransomware/
author: X__Junior (Nextron Systems)
date: 2023-04-04
modified: 2023-04-22
tags:
    - attack.execution
    - attack.t1059.003
    - attack.t1059.001
    - detection.emerging-threats
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        Image|endswith:
            - '\bcdedit.exe'
            - '\net.exe'
            - '\net1.exe'
            - '\netsh.exe'
            - '\wevtutil.exe'
            - '\vssadmin.exe'
        CommandLine|contains: '11111111'
    condition: selection
falsepositives:
    - Unlikely
level: critical

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