Detection rules › Sigma
Shell Context Menu Command Tampering
Detects changes to shell context menu commands. Use this rule to hunt for potential anomalies and suspicious shell commands.
Event coverage
| Provider | Event | Title |
|---|---|---|
| Sysmon | Event ID 13 | RegistryEvent (Value Set) |
Rule body yaml
title: Shell Context Menu Command Tampering
id: 868df2d1-0939-4562-83a7-27408c4a1ada
status: test
description: Detects changes to shell context menu commands. Use this rule to hunt for potential anomalies and suspicious shell commands.
references:
- https://mrd0x.com/sentinelone-persistence-via-menu-context/
author: Nasreddine Bencherchali (Nextron Systems)
date: 2024-03-06
tags:
- attack.persistence
- detection.threat-hunting
logsource:
category: registry_set
product: windows
detection:
selection:
TargetObject|contains|all:
- '\Software\Classes\'
- '\shell\'
- '\command\'
condition: selection
falsepositives:
- Likely from new software installation suggesting to add context menu items. Such as "PowerShell", "Everything", "Git", etc.
level: low
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
TargetObject|contains|all:
- '\Software\Classes\'
- '\shell\'
- '\command\'
Indicators
Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.
| Field | Kind | Values |
|---|---|---|
TargetObject | match |
|