alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32.Virut - GET"; flow:established,to_server; http.method; content:"GET"; depth:3; http.uri; content:"?n="; nocase; content:"&lastid="; nocase; content:"&Version"; nocase; content:"&smartpic="; nocase; content:"&rand="; nocase; reference:url,www.microsoft.com/security/portal/Threat/Encyclopedia/Entry.aspx?Name=Win32%2fVirut; reference:url,www.avast.com/eng/win32-virut.html; reference:url,free.avg.com/66558; reference:url,www.threatexpert.com/threats/virus-win32-virut-ce.html; classtype:trojan-activity; sid:2009808; rev:7; metadata:created_at 2010_07_30, signature_severity Major, updated_at 2020_09_02;)