alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT_KIT RIG EK Landing Sep 13 2016 (b643)"; flow:established,from_server; file_data; content:"rICc8cGFyYW0gbmFtZT1GbGFzaFZhcnMgdmFsdWU9ImlkZHFkP"; flowbits:set,ET.RIGEKExploit; classtype:exploit-kit; sid:2023200; 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;)