alert http $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET MALWARE FakeYak or Related Infection Checkin 2"; flow:established,to_server; http.uri; content:"&fff="; content:"&coid="; fast_pattern; content:"saf="; reference:url,www.microsoft.com/security/portal/Threat/Encyclopedia/Entry.aspx?Name=Rogue%3aWin32%2fFakeYak; classtype:command-and-control; sid:2011397; rev:4; metadata:created_at 2010_09_28, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_10;)