alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT_KIT RIG EK Landing Sep 13 2016 (b641)"; flow:established,to_client; flowbits:set,ET.RIGEKExploit; file.data; content:"KyAnPHBhcmFtIG5hbWU9Rmxhc2hWYXJzIHZhbHVlPSJpZGRxZD"; classtype:exploit-kit; sid:2023198; rev:5; 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 2024_03_14;)