alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET WEB_CLIENT Evil Keitaro Set-Cookie Inbound (9487d)"; flow:established,from_server; http.stat_code; content:"302"; http.cookie; content:"9487d=eyJ0e"; fast_pattern; pcre:"/^[A-Z0-9_\-.]{20,300}\x3b/Ri"; classtype:trojan-activity; sid:2031614; rev:2; metadata:affected_product Any, attack_target Client_Endpoint, created_at 2021_02_11, deployment Perimeter, malware_family KeitaroTDS, confidence High, signature_severity Major, updated_at 2021_02_11;)