alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET DELETED XPantivirus2008 Download"; flow:to_server,established; content:"GET"; depth:3; http_method; content:"XPantivirus20"; nocase; http_uri; pcre:"/XPantivirus20\d{2}_v\d{6}\.exe/Ui"; reference:url,www.theregister.co.uk/2008/08/22/anatomy_of_a_hack/page4.html; reference:url,seo.mhvt.net/blog/?p=390; reference:url,virscan.org/report/a61cd44fc387188da2ee3fbdeda10782.html; classtype:trojan-activity; sid:2008516; rev:6; metadata:created_at 2010_07_30, signature_severity Unknown, updated_at 2019_07_26;)