alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT_KIT Unknown_MM EK - Landing Page"; flow:established,to_client; file.data; content:"<applet "; content:"new PDFObject"; classtype:exploit-kit; sid:2016373; rev:3; metadata:created_at 2013_02_08, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_13;)