alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE MuddyWater Payload Requesting Command from CnC"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"|2f|command|2f|"; depth:9; fast_pattern; content:".cmd"; endswith; pcre:"/^\/command\/[A-Fa-f0-9]{8}\-(?:[A-Fa-f0-9]{4}\-){3}[A-Fa-f0-9]{12}\.cmd$/"; reference:url,mp.weixin.qq.com/s/ko5ct9mnW78pD_RRqEUSkg; classtype:targeted-activity; sid:2027684; rev:4; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_07_04, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag MuddyWater, updated_at 2022_03_24;)