Cisco Cloud Security - Possible connection to C2.

Calculate the count of BytesIn per Source-Destination pair over 12/24 hours. Higher values may indicate beaconing. C2 servers reply with the same data, making BytesIn value the same.

Detection logic

Detection requirements

Platform: ESXi Linux macOS Network Devices Windows
The rule states no platform. This is derived from the ATT&CK technique it maps to.

Detections can measure how the public catalogue is used — which detections people look for, and which pages bring them here. It sets a cookie that recognises this browser for 180 days. It is never linked to an account and never follows you to other sites. Privacy notice

Detection rules

Cisco Cloud Security - Possible connection to C2.

Detection logic

Detection requirements

MITRE ATT&CK mappings

From the source

Licence

Authorship

Detection rules