PowerShell Base64 Encoded FromBase64String Cmdlet

Detects usage of a base64 encoded "FromBase64String" cmdlet in a process command line

Detection logic

Detection requirements

Platform: ESXi Linux macOS Windows
The rule states no platform. This is derived from the 2 ATT&CK techniques it maps to.
Log source product: windows
Log source category: process_creation

Known benign triggers

Unknown

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Detection rules

PowerShell Base64 Encoded FromBase64String Cmdlet

Detection logic

Detection requirements

Known benign triggers

MITRE ATT&CK mappings

From the source

Licence

Authorship

Detection rules