Possible GCleaner Loader C2 Check-in via cpa ping php Endpoint via proxy

ATT&CK techniques

C2

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
- T1071.001Web Protocols
- T1105Ingress Tool Transfer
Exfiltration
Impact

What it detects

This rule detects GCleaner loader command and control check-ins that request the /cpa/ping.php endpoint carrying a substr parameter. GCleaner is a pay per install loader that pulls follow on payloads after beaconing to its panel. The distinctive URI and query structure identifies the loader control channel independent of the rotating C2 IP addresses.

Reporting behind it

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Possible GCleaner Loader C2 Check-in via cpa ping php Endpoint via proxy

Pivot detection · T1105 · 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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