alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT_KIT FlashPack EK JS Include Aug 25 2014"; flow:established,from_server; file_data; content:"function hex2bin(hex)"; within:21; content:"function rc4"; distance:0; content:!"function "; distance:0; classtype:exploit-kit; sid:2019007; rev:2; metadata:created_at 2014_08_26, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)