Detection rules › Sigma
PowerShell Called from an Executable Version Mismatch
Detects PowerShell called from an executable by the version mismatch method
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Execution | T1059.001 Command and Scripting Interpreter: PowerShell |
Event coverage
| Provider | Event |
|---|---|
| PowerShell | Event ID 400 |
Rule body yaml
title: PowerShell Called from an Executable Version Mismatch
id: c70e019b-1479-4b65-b0cc-cd0c6093a599
status: test
description: Detects PowerShell called from an executable by the version mismatch method
references:
- https://adsecurity.org/?p=2921
author: Sean Metcalf (source), Florian Roth (Nextron Systems)
date: 2017-03-05
modified: 2023-10-27
tags:
- attack.execution
- attack.t1059.001
logsource:
product: windows
category: ps_classic_start
detection:
selection_engine:
Data|contains:
- 'EngineVersion=2.'
- 'EngineVersion=4.'
- 'EngineVersion=5.'
selection_host:
Data|contains: 'HostVersion=3.'
condition: all of selection_*
falsepositives:
- Unknown
level: high
Stages and Predicates
Stage 0: condition
all of selection_*Stage 1: selection_engine
selection_engine:
Data|contains:
- 'EngineVersion=2.'
- 'EngineVersion=4.'
- 'EngineVersion=5.'
Stage 2: selection_host
selection_host:
Data|contains: 'HostVersion=3.'
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 |
|---|---|---|
Data | match |
|