alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET DELETED Win32.Hooker Checkin Message"; flow:established,to_server; content:"&lg="; http_uri; content:"&ntime="; http_uri; content:"&repeatip="; http_uri; content:"&rtime="; http_uri; content:"&sin="; http_uri; classtype:trojan-activity; sid:2013205; rev:3; metadata:created_at 2011_07_06, signature_severity Unknown, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)