Malicious Sparkling Pisces Backdoor C2 URI Pattern (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
Exfiltration
Impact

What it detects

This rule detects web requests to the fixed command-and-control URIs used by the Sparkling Pisces KLogEXE keylogger and FPSpy backdoor, which encode operator index parameters in PHP endpoints. These structured request patterns are specific to the toolset and indicate an infected host communicating with its controller.

Reporting behind it

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Malicious Sparkling Pisces Backdoor C2 URI Pattern (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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