Rule History

SID: 2068083 • Source: et/open

Versions (2)

Version DetailsCurrent

Rev: 1 • Mar 9, 2026, 12:00 PM

Message:

ET MALWARE Observed RMM Payload Delivery Domain (vmware-vsphere .com in TLS SNI)

Rule:

alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed RMM Payload Delivery Domain (vmware-vsphere .com in TLS SNI)"; flow:established,to_server; tls.sni; dotprefix; content:".vmware-vsphere.com"; endswith; fast_pattern; reference:url,x.com/g0njxa/status/2031034087801012435; classtype:trojan-activity; sid:2068083; rev:1; metadata:attack_target Client_Endpoint, created_at 2026_03_09, deployment Perimeter, confidence High, signature_severity Major, tag RMM, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2026_03_09;)

Created:

Mar 9, 2026, 12:00 PM

Updated:

Mar 9, 2026, 12:00 PM

DB Created:

Mar 9, 2026, 8:34 PM

DB Updated:

Mar 10, 2026, 8:34 PM

Filename:

rules/emerging-malware.rules