alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT_KIT CritXPack Landing Page"; flow:established,to_client; file.data; content:"<applet"; content:"a.Test"; fast_pattern; classtype:exploit-kit; sid:2015884; rev:3; metadata:created_at 2012_11_14, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_13;)