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MediumSigmaHQFlorian Roth (Nextron Systems) +1

Potential Base64 Encoded User-Agent

Detects User Agent strings that end with an equal sign, which can be a sign of base64 encoding.

Detection logic

Detection requirements

Platform
ESXiLinuxmacOSNetwork DevicesWindows

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

Log source category
proxy

Known benign triggers

  • Unknown

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