Rule History

alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed DonotGroup Maldoc Related Domain (digitalresolve .live in TLS SNI)"; flow:established,to_server; tls.sni; content:"digitalresolve.live"; bsize:19; fast_pattern; reference:url,twitter.com/h2jazi/status/1453763622593826825; reference:md5,c531319309db1a034936e245f6414959; reference:url,twitter.com/HONKONE_K/status/1453659791625056261; classtype:domain-c2; sid:2034285; rev:1; metadata:attack_target Client_Endpoint, created_at 2021_10_28, deployment Perimeter, malware_family Maldoc, malware_family DonotGroup, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_10_28, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)