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T1071.003

Mail Protocols

Adversaries may communicate using application layer protocols associated with electronic mail delivery to avoid detection/network filtering by blending in with existing traffic. Commands to the remote system, and often the results of those commands, will be embedded within the protocol traffic between the client and server. Protocols such as SMTP/S, POP3/S, and IMAP that carry electronic mail may be very common in environments. Packets produced from these protocols may have many fields and he...

LinuxmacOSNetwork DevicesWindows
4
Detections
2
Sources
6
Threat Actors

BY SOURCE

3splunk_escu1elastic

PROCEDURES (3)

C22 detections

Auto-extracted: 2 detections for c2

Network Connection Monitoring1 detections

Auto-extracted: 1 detections for network connection monitoring

Exfiltrat1 detections

Auto-extracted: 1 detections for exfiltrat

DETECTIONS (4)