T1041 Exfiltration Over C2 Channel
Adversaries may steal data by exfiltrating it over an existing command and control channel. Stolen data is encoded into the normal communications channel using the same protocol as command and control communications.
Who uses it · with stories on Jábega
Sigma rules to hunt it
- Equation Group C2 Communicationhightest · firewall
- OpenCanary - TFTP Requesthightest · opencanary
- Shai-Hulud NPM Package Malicious Exfiltration via Curlhighexperimental · linux
- Network Communication Initiated To Portmap.IO Domainmediumtest · windows
Rules from SigmaHQ · Detection Rule License 1.1. Technique from MITRE ATT&CK®.