alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET DELETED Downloader (Win32.Doneltart) Checkin - HTTP GET"; flow:established,to_server; content:"GET"; nocase; http_method; content:".php?open="; nocase; http_uri; content:"&myid="; fast_pattern; nocase; http_uri; content:!"User-Agent|3a|"; http_header; classtype:trojan-activity; sid:2009814; rev:8; metadata:created_at 2010_07_30, signature_severity Unknown, updated_at 2019_07_26;)