alert http $HOME_NET any -> $EXTERNAL_NET any (
msg:"ET MALWARE Win32.Hupigon.dkwt Related Checkin";
flow:established,to_server;
http.method;
content:"GET"; nocase;
http.uri;
content:"htm?mac="; nocase;
content:"&os="; nocase; distance:0;
content:"&ver="; nocase; distance:0;
content:"&id="; nocase; distance:0;
pcre:"/\?mac=[0-9]*?&os=[a-z]*?&ver=[0-9]{8}&id=/i";
classtype:command-and-control;
sid:2009704; rev:10;
metadata:created_at 2010_07_30, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_04_22;
)