Detect PowerShell v2 Downgrade

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This query looks for processes that load an older version of the system.management.automation libraries. While not inherently malicious, downgrading to PowerShell version 2 can enable an attacker to bypass some of the protections afforded by modern PowerShell. It is worth noting that some tools and scripts perform this to enable backwards compatibility, so the technique is not inherently malicious. You will likely need to filter the processes within your environment that legitimately use this ca

Attribute Value
Type Hunting Query
Solution GitHub Only
ID 70c41ff4-b95a-43a3-8fb5-794ed69be100
Tactics Execution
Required Connectors MicrosoftThreatProtection
Source View on GitHub

Tables Used

This content item queries data from the following tables:

Table Transformations Ingestion API Lake-Only
DeviceImageLoadEvents ?

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