Possible JanelaRAT C2 Beacon via Structured HTTP Query (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 outbound HTTP requests carrying the structured beacon query parameters VS, PL and AN that JanelaRAT appends when checking in to its command-and-control server. This behavior is associated with the JanelaRAT financial trojan operating over daily-rotating dynamic DNS infrastructure in Latin America. Identifying the fixed parameter layout reveals active C2 communication independent of the rotating domain.

Reporting behind it

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Possible JanelaRAT C2 Beacon via Structured HTTP Query (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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