Rule History

SID: 2067872 • Source: et/open

Versions (2)

Version DetailsCurrent

Rev: 1 • Feb 23, 2026, 12:00 PM

Message:

ET MALWARE Observed DNS Query to TrustConnect Domain (hardconnect .net)

Rule:

alert dns $HOME_NET any -> any any (msg:"ET MALWARE Observed DNS Query to TrustConnect Domain (hardconnect .net)"; dns.query; dotprefix; content:".hardconnect.net"; nocase; endswith; classtype:trojan-activity; sid:2067872; rev:1; metadata:attack_target Client_Endpoint, created_at 2026_02_23, deployment Perimeter, confidence High, signature_severity Critical, tag Description_Generated_By_Proofpoint_Nexus, tag TrustConnect, updated_at 2026_02_23;)

Created:

Feb 23, 2026, 12:00 PM

Updated:

Feb 23, 2026, 12:00 PM

DB Created:

Feb 23, 2026, 10:34 PM

DB Updated:

Feb 24, 2026, 4:34 PM

Filename:

rules/emerging-malware.rules