alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Taurus Stealer CnC Exfil"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/gate/log/?post="; fast_pattern; content:"&data="; distance:0; pcre:"/&data=(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{4})+$/"; http.request_body; content:"name=|22|file|22 3b 20|filename=|22|"; pcre:"/^(?:[a-z]\d){7,}\.zip\x22/R"; http.content_type; content:"multipart/form-data|3b 20|boundary="; reference:md5,b9ea305f1d66611ef9603d33217f3dd5; classtype:command-and-control; sid:2030159; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_05_12, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_05_12;)