alert http $HOME_NET any -> $EXTERNAL_NET any (
msg:"ET MALWARE Trojan.FakeMS Checkin";
flow:established,to_server;
urilen:5;
http.method;
content:"POST";
http.header;
content:!"Referer";
http.request_body;
content:"|20|(64|20|=|20|";
content:")|20|EXE|20|=|20|"; distance:1; within:8;
pcre:"/^\x5b[^\r\n]+\(64\s=\s\d\)\sEXE\s=/";
reference:md5,e606e56a222f788ab5cbcf40842cbc39;
reference:md5,099dc535bdd09d6a7bc4edabc8ded5de;
classtype:command-and-control;
sid:2019654; rev:7;
metadata:created_at 2014_11_06, signature_severity Major, updated_at 2020_05_13;
)