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Python One-Liners with Base64 Decoding

Detects Python one-liners that use base64 decoding functions in command line executions. Malicious scripts or attackers often use python one-liners to decode and execute base64-encoded payloads, which is a common…

Description

Detects Python one-liners that use base64 decoding functions in command line executions. Malicious scripts or attackers often use python one-liners to decode and execute base64-encoded payloads, which is a common technique for obfuscation and evasion.

Detection logic

Detection requirements

Platform
ESXiLinuxmacOSWindows

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

  • Legitimate use of Python for decoding data, which is uncommon in typical enterprise environments but possible in development or data analysis contexts.

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