alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE LDPinch Checkin Post"; flow:established,to_server; http.method; content:"POST"; nocase; http.uri; content:".php"; http.request_body; content:"a="; fast_pattern; startswith; content:"&b="; distance:0; content:"&d="; distance:0; content:"&c="; distance:0; classtype:command-and-control; sid:2017948; rev:6; metadata:created_at 2014_01_10, signature_severity Major, updated_at 2024_04_14;)