alert http $HOME_NET any -> $EXTERNAL_NET any (
msg:"ET MALWARE BITTERBUG Checkin";
flow:to_server,established;
http.method;
content:"POST"; nocase;
http.uri;
content:".php?compname=";
pcre:"/^[^\\\*\+\=\|\:\;\x22\?\<\>\,\#][a-zA-Z0-9-!@#\$%^&\(\)\x20_{}\.~]{1,14}_/R";
http.header_names;
content:!"User-Agent|0d 0a|";
reference:md5,34c7f12b4e8f2b81143453af12442ee0;
reference:md5,48bbae6ee277b5693b40ecf51919d3a6;
classtype:command-and-control;
sid:2018900; rev:3;
metadata:created_at 2014_08_06, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_05_01;
)