alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT_KIT Redkit encrypted binary (1)"; flow:established,to_client; flowbits:isset,ET.http.javaclient; flowbits:set,et.exploitkitlanding; file.data; content:"|fb 67 1f 49|"; within:4; classtype:exploit-kit; sid:2016113; rev:5; metadata:created_at 2012_12_29, signature_severity Major, updated_at 2024_03_14;)