alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT_KIT Sakura encrypted binary (2)"; flow:established,to_client; flowbits:isset,ET.http.javaclient; file_data; content:"|58 23 3a d4|"; within:4; classtype:exploit-kit; sid:2016945; rev:8; metadata:created_at 2013_05_30, signature_severity Major, updated_at 2019_07_26;)