alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed Zloader Related Domain (msfw .store in TLS SNI)"; flow:established,to_server; tls.sni; dotprefix; content:".msfw.store"; endswith; fast_pattern; reference:url,medium.com/walmartglobaltech/unknown-powershell-backdoor-with-ties-to-new-zloader-88ca51d38850; classtype:trojan-activity; sid:2054744; rev:2; metadata:attack_target Client_Endpoint, created_at 2024_07_29, deployment Perimeter, deprecation_reason Age, confidence High, signature_severity Major, 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;)