alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE VirTool.Win32/VBInject.gen!DM Checkin"; flow:established,to_server; http.uri; content:"/iLog.php?dl="; fast_pattern; content:"&log="; http.user_agent; content:"IE"; startswith; reference:url,microsoft.com/security/portal/Threat/Encyclopedia/Entry.aspx?Name=VirTool%3aWin32/VBInject.gen!DM; classtype:command-and-control; sid:2013534; rev:9; metadata:created_at 2011_09_03, signature_severity Major, updated_at 2020_09_17;)