alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE W32/Yaq Checkin"; flow:established,to_server; http.uri; content:"/Submit.php?id="; content:"&action="; within:10; content:"&mac="; within:10; content:"&lockcode="; within:30; content:"&homepc="; within:15; http.user_agent; bsize:7; content:"getinfo"; classtype:command-and-control; sid:2013900; rev:3; metadata:created_at 2011_11_11, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_02_08;)