Suspicious Interlock Backdoor C2 Beacon to init1234 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
Exfiltration
Impact

What it detects

This rule detects HTTP POST requests to the init1234 endpoint used by the Interlock PowerShell backdoor for command and control. The Interlock ransomware operators register their compromised hosts by beaconing to this fixed URI. The specific init1234 path combined with the POST method reveals active backdoor communication.

Reporting behind it

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Suspicious Interlock Backdoor C2 Beacon to init1234 Endpoint (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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