alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET HUNTING Generic CollectGarbage in Hex"; flow:established,from_server; file_data; content:"|5c|x43|5c|x6f|5c|x6c|5c|x6c|5c|x65|5c|x63|5c|x74|5c|x47|5c|x61|5c|x72|5c|x62|5c|x61|5c|x67|5c|x65"; nocase; classtype:suspicious-filename-detect; sid:2019338; rev:6; metadata:affected_product Any, attack_target Client_Endpoint, created_at 2014_10_02, deployment Perimeter, confidence Medium, signature_severity Informational, tag DriveBy, updated_at 2019_07_26;)