Malicious Self-Signed TLS Certificate With Exploit Subject via Zeek X509

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 TLS certificates whose subject or issuer contains the literal exploit organizational value used by the self-signed certificate in the UAT-7810 ORB-network campaign reported by Cisco Talos. The DOGLEASH and LONGLEASH implants wrap their reverse-shell and proxy traffic in this hardcoded certificate. Matching the certificate subject reveals encrypted command-and-control channels regardless of the rotating C2 IP addresses.

Reporting behind it

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Malicious Self-Signed TLS Certificate With Exploit Subject via Zeek X509

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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