NRT Process executed from binary hidden in Base64 encoded file

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Encoding malicious software is a technique used to obfuscate files from detection. The first CommandLine component is looking for Python decoding base64. The second CommandLine component is looking for Bash/sh command line base64 decoding. The third one is looking for Ruby decoding base64.

Attribute Value
Type Analytic Rule
Solution Windows Security Events
ID 7ad4c32b-d0d2-411c-a0e8-b557afa12fce
Severity Medium
Status Available
Kind NRT
Tactics Execution, DefenseEvasion
Techniques T1059, T1027, T1140
Required Connectors SecurityEvents, WindowsSecurityEvents
Source View on GitHub

Tables Used

This content item queries data from the following tables:

Table Selection Criteria Transformations Ingestion API Lake-Only
SecurityEvent EventID == "4688" ?

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