Rule History

SID: 2067351 • Source: et/open

Versions (3)

Version DetailsCurrent

Rev: 2 • Feb 6, 2026, 12:00 PM

Message:

ET MALWARE TrustConnect RAT CnC Domain in DNS Lookup (trustconnectsoftware .com)

Rule:

alert dns $HOME_NET any -> any any (msg:"ET MALWARE TrustConnect RAT CnC Domain in DNS Lookup (trustconnectsoftware .com)"; dns.query; dotprefix; content:".trustconnectsoftware.com"; nocase; endswith; classtype:trojan-activity; sid:2067351; rev:2; metadata:attack_target Client_Endpoint, created_at 2026_02_06, deployment Perimeter, malware_family TrustConnect, confidence High, signature_severity Critical, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2026_02_17;)

Created:

Feb 6, 2026, 12:00 PM

Updated:

Feb 17, 2026, 12:00 PM

DB Created:

Feb 6, 2026, 10:34 PM

DB Updated:

Feb 17, 2026, 10:34 PM

Filename:

rules/emerging-malware.rules