Rule History

SID: 2066589 • Source: et/open

Versions (2)

Version DetailsCurrent

Rev: 1 • Jan 5, 2026, 12:00 PM

Message:

ET MALWARE Observed StealC Payload Delivery Domain (servachok .space in TLS SNI)

Rule:

alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed StealC Payload Delivery Domain (servachok .space in TLS SNI)"; flow:established,to_server; tls.sni; dotprefix; content:".servachok.space"; endswith; fast_pattern; classtype:trojan-activity; sid:2066589; rev:1; metadata:attack_target Client_Endpoint, created_at 2026_01_05, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2026_01_05;)

Created:

Jan 5, 2026, 12:00 PM

Updated:

Jan 5, 2026, 12:00 PM

DB Created:

Jan 5, 2026, 10:34 PM

DB Updated:

Jan 6, 2026, 10:34 PM

Filename:

rules/emerging-malware.rules