alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Opachki Link Hijacker Traffic Redirection"; flow:established,to_server; http.uri; content:"/?do=rphp"; fast_pattern; nocase; content:"&sub="; nocase; content:"&b="; nocase; content:"&q="; nocase; content:"&orig="; nocase; reference:url,www.secureworks.com/research/threats/opachki/?threat=opachki; reference:url,www.microsoft.com/security/portal/Threat/Encyclopedia/Entry.aspx?Name=Trojan%3aWin32%2fOpachki.A; reference:url,www.symantec.com/security_response/writeup.jsp?docid=2009-092213-3317-99&tabid=2; classtype:trojan-activity; sid:2010224; rev:5; metadata:created_at 2010_07_30, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_16;)