alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE MuddyWater Payload CnC Checkin"; flow:established,to_server; http.method; content:"POST"; http.uri; content:".php?Tok="; content:"&newsUID="; distance:0; fast_pattern; reference:url,mp.weixin.qq.com/s/ko5ct9mnW78pD_RRqEUSkg; classtype:targeted-activity; sid:2027685; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, created_at 2019_07_04, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag MuddyWater, updated_at 2020_08_31;)