alert http $HOME_NET any -> $EXTERNAL_NET any (
msg:"ET MALWARE General Downloader Checkin URL (GUID+)";
flow:established,to_server;
http.uri;
content:"&version="; nocase;
content:"&configversion="; nocase;
content:"GUID="; nocase;
content:"&cmd="; nocase;
content:"&p="; nocase;
content:"&i="; nocase;
content:"&x="; nocase;
classtype:command-and-control;
sid:2007577; rev:7;
metadata:created_at 2010_07_30, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_04_21;
)