Rule History

alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET EXPLOIT_KIT Malicious TA2726 TDS Domain in TLS SNI (typescripttools .com)"; flow:established,to_server; tls.sni; bsize:19; content:"typescripttools.com"; fast_pattern; reference:url,community.emergingthreats.net/t/et-socgholish-rules-response-guidance/335; classtype:exploit-kit; sid:2064277; rev:4; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2025_09_03, deployment Perimeter, former_category MALWARE, performance_impact Low, confidence High, signature_severity Minor, tag Exploit_Kit, tag TDS, tag compromised_website, tag TA2726, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_09_15;)