Suspicious CurKeep Backdoor C2 API Endpoints (via proxy)

ATT&CK techniques

C2 → Exfiltration

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
- T1071.001Web Protocols
Exfiltration
- T1041Exfiltration Over C2 Channel
Impact

What it detects

This rule detects web requests to the shell and file API endpoints used by the CurKeep backdoor for command-and-control in the Stayin Alive campaign. The fixed api shell and api file URI paths reflect the backdoor tasking channel and help surface implant traffic in proxy logs.

Reporting behind it

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Suspicious CurKeep Backdoor C2 API Endpoints (via proxy)

Pivot detection · T1071.001 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.

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