Cisco SEG - Dropped outgoing mails

Query searches for dropped outgoing mails.

Detection logic

Detection requirements

Platform: ESXi Linux macOS Windows
The rule states no platform. This is derived from the ATT&CK technique it maps to.
Log source product: cefama
Log source service: commonsecuritylog

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Detection rules

Cisco SEG - Dropped outgoing mails

Detection logic

Detection requirements

MITRE ATT&CK mappings

From the source

Licence

Authorship

Detection rules