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UnknownMicrosoft Sentinel analytics

Risky base64 encoded command in URL

This query detects risky Base64-encoded commands in web requests. It identifies potential C2 server communication and illuminates injected webshells. Note that base64 is case-sensitive, requiring multiple…

Description

This query detects risky Base64-encoded commands in web requests. It identifies potential C2 server communication and illuminates injected webshells. Note that base64 is case-sensitive, requiring multiple permutations for full coverage.

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 product
checkpointfortinetpaloaltonetworkszscaler
Log source service
commonsecuritylog

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