alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Mac Flashback Checkin 3"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/search?q="; fast_pattern; content:"&ua="; distance:0; content:"==&al="; distance:0; content:"&cv="; distance:0; classtype:command-and-control; sid:2014599; rev:6; metadata:created_at 2012_04_17, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_16;)