Rule History

alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed TA399/SideWinder Domain (mofa-gov-pk .dowmload .info in TLS SNI)"; flow:established,to_server; tls.sni; dotprefix; content:".mofa-gov-pk.dowmload.info"; endswith; fast_pattern; reference:url,x.com/StrikeReadyLabs/status/1821133707077370041; classtype:trojan-activity; sid:2055071; rev:2; metadata:attack_target Client_Endpoint, created_at 2024_08_08, deployment Perimeter, deprecation_reason Age, confidence High, signature_severity Major, tag Sidewinder, tag TA399, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_04_15, reviewed_at 2025_04_15, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)