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HighSigmaHQFlorian Roth (Nextron Systems)

Base64 Encoded PowerShell Command Detected

Detects usage of the "FromBase64String" function in the commandline which is used to decode a base64 encoded string

Detection logic

Detection requirements

Platform
ESXiLinuxmacOSNetwork DevicesWindows

The rule states no platform. This is derived from the 3 ATT&CK techniques it maps to.

Log source product
windows
Log source category
process_creation

Known benign triggers

  • Administrative script libraries

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