alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET EXPLOIT Kingdee Cloud Star Deserialization Vulnerability"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"Kingdee"; content:".UserService."; distance:0; http.content_type; content:"text/json"; http.header_names; content:"|0d 0a|cmd|0d 0a|"; fast_pattern; http.request_body; content:"|22|ap0|22 3a 22|"; reference:url,github.com/wy876/POC/blob/main/%E9%87%91%E8%9D%B6%E4%BA%91%E6%98%9F%E7%A9%BAUserService%E5%8F%8D%E5%BA%8F%E5%88%97%E5%8C%96%E6%BC%8F%E6%B4%9E.md; reference:url,gksec.com/K3cloud_rce.html; classtype:trojan-activity; sid:2054074; rev:1; metadata:affected_product Kingdee_Cloud, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2024_06_26, deployment Perimeter, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_06_26;)