alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"ET EXPLOIT_KIT Dadong Exploit Kit Downloaded"; flow:established,from_server; flowbits:set,et.exploitkitlanding; content:"indexOf(|22|dadong=|22|)=="; fast_pattern; reference:url,www.kahusecurity.com/2012/chinese-pack-using-dadongs-jsxx-vip-script/; classtype:exploit-kit; sid:2025037; rev:3; metadata:created_at 2012_03_01, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_10_08;)