Suspicious Base64 download activity detected

Query detects Base64 obfuscated scripts for malicious file execution. This technique is used by attackers to exploit a remote code execution vulnerability in the Apache Log4j to evade detection.

Detection logic

Detection requirements

Platform: Containers ESXi IaaS Identity Provider Linux macOS Network Devices Office Suite SaaS Windows
The rule states no platform. This is derived from the 2 ATT&CK techniques it maps to.
Log source product: syslog
Log source service: syslog

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Detection rules

Suspicious Base64 download activity detected

Detection logic

Detection requirements

MITRE ATT&CK mappings

From the source

Licence

Authorship

Detection rules