alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Taurus Stealer CnC Host Checkin"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/gate/cfg/?post="; fast_pattern; content:"&data="; distance:0; pcre:"/&data=(?:[a-z]\d){7,}$/"; http.content_len; byte_test:0,=,0,0,string,dec; reference:md5,b9ea305f1d66611ef9603d33217f3dd5; classtype:command-and-control; sid:2030158; 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;)