alert http $EXTERNAL_NET any -> $HOME_NET any (
msg:"ET EXPLOIT_KIT RIG EK Landing Sep 13 2016 (b641)";
flow:established,from_server;
file_data;
content:"KyAnPHBhcmFtIG5hbWU9Rmxhc2hWYXJzIHZhbHVlPSJpZGRxZD";
flowbits:set,ET.RIGEKExploit;
classtype:exploit-kit;
sid:2023198; rev:3;
metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Web_Browsers, affected_product Web_Browser_Plugins, attack_target Client_Endpoint, created_at 2016_09_13, deployment Perimeter, malware_family RIG, confidence High, signature_severity Major, updated_at 2020_08_19;
)