alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Virut/Virutas/Virtob/QQHelper Dropper Family - HTTP GET"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"?SoftName="; nocase; content:"&SoftVersion="; fast_pattern; nocase; content:"&UserIP"; nocase; content:"&Mac"; nocase; reference:url,www.microsoft.com/security/portal/Threat/Encyclopedia/Entry.aspx?Name=TrojanDownloader%3AWin32%2FQQHelper.gen!E&ThreatID=-2147371486; reference:url,www.sophos.com/security/analyses/viruses-and-spyware/w32viruti.html; reference:url,www.threatexpert.com/threats/w32-virut-i.html; classtype:trojan-activity; sid:2009829; rev:5; metadata:created_at 2010_07_30, signature_severity Major, updated_at 2024_03_10;)