ET MALWARE Observed TrustConnect Domain RAT (beyondset .top in TLS SNI)
Sourceet/open
CreatedFebruary 27, 2026
UpdatedFebruary 27, 2026
Classificationtrojan-activity
alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed TrustConnect Domain RAT (beyondset .top in TLS SNI)"; flow:established,to_server; tls.sni; dotprefix; content:".beyondset.top"; endswith; fast_pattern; reference:url,www.proofpoint.com/us/blog/threat-insight/dont-trustconnect-its-a-rat; classtype:trojan-activity; sid:2067943; rev:1; metadata:attack_target Client_Endpoint, created_at 2026_02_27, deployment Perimeter, malware_family TrustConnect, confidence High, signature_severity Critical, tag compromised_website, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2026_02_27;)
Metadata
attack targetClient_Endpoint
created at2026_02_27
deploymentPerimeter
malware familyTrustConnect
confidenceHigh
signature severityCritical
tagDescription_Generated_By_Proofpoint_Nexus
updated at2026_02_27
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