alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE xpsecuritycenter.com Fake AntiVirus GET-Install Checkin"; flow:established,to_server; http.method; content:"GET"; depth:3; http.uri; content:".php?"; content:"wmid="; nocase; content:"|26|l="; nocase; content:"|26|it="; nocase; content:"|26|s="; nocase; reference:url,www.symantec.com/security_response/writeup.jsp?docid=2008-051910-0118-99&tabid=1; classtype:command-and-control; sid:2008329; rev:7; metadata:created_at 2010_07_30, signature_severity Major, updated_at 2020_09_02;)