Windows Process Creation Indicators for Snatch Ransomware Word Document Droppers

Alerts on Windows process command lines showing instant safe-mode shutdown/reboot and stopping SuperBackupMan service.

FreeReviewedSigma · High · v5

Product: windows
Category: process_creation
Author: Florian Roth (Nextron Systems) (SigmaHQ), DRL 1.1
Published: 2020-08-26
Updated: 2026-07-31

ATT&CK techniques

Execution

Recon
Resource Dev
Initial Access
Execution
- T1204User Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule flags Windows process creation events matching command-line patterns associated with immediate reboot into safe mode and stopping a backup-related service. Such behavior is commonly used to hinder recovery and evade local protections before payload execution. It relies on process creation telemetry containing the full command line to identify the specific shutdown and service-stop arguments.

Reporting behind it

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Windows Process Creation Indicators for Snatch Ransomware Word Document Droppers

Pivot detection · T1204 · 9 related

Changelog

v5
Candidate ingested via manual entry.2026-07-31
v4
Candidate ingested via manual entry.2026-07-31
v3
Candidate ingested via manual entry.2026-07-31
v2
Candidate ingested via manual entry.2026-07-31
v1
No changelog recorded for this version.2026-07-30

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.

windows-process-creation-snatch-ransomware-dropper-safe-mode-reboot-indicators-5325945e

title: Windows Process Creation Indicators for Snatch Ransomware Word Document Droppers
id: 1ba4c817-0901-47ca-bc45-afffb190e3ed
status: stable
description: This rule flags Windows process creation events matching command-line patterns associated with immediate reboot into safe mode and stopping a backup-related service. Such behavior is commonly used to hinder recovery and evade local protections before payload execution. It relies on process creation telemetry containing the full command line to identify the specific shutdown and service-stop arguments.
references:
  - https://news.sophos.com/en-us/2019/12/09/snatch-ransomware-reboots-pcs-into-safe-mode-to-bypass-protection/
  - https://github.com/SigmaHQ/sigma/blob/master/rules-emerging-threats/2019/Malware/Snatch/proc_creation_win_malware_snatch_ransomware.yml
author: Florian Roth (Nextron Systems), Huntrule Team
date: 2020-08-26
modified: 2025-10-19
tags:
  - attack.execution
  - attack.t1204
  - detection.emerging-threats
logsource:
  category: process_creation
  product: windows
detection:
  selection:
    - CommandLine|re: shutdown\s+/r /f /t 00
    - CommandLine|re: net\s+stop SuperBackupMan
  condition: selection
falsepositives:
  - Scripts that shutdown the system immediately and reboot them in safe mode are unlikely
level: high
license: DRL-1.1
related:
  - id: 5325945e-f1f0-406e-97b8-65104d393fff
    type: derived

Convert

This rule as a query you can run. Uses no unlock credit.

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