alert http any any -> $HOME_NET any (msg:"ET MALWARE CMDASP Webshell Command Request"; flow:established,to_server; http.method; content:"POST"; http.uri; content:".aspx"; http.request_body; content:"txtArg="; content:"testing=execute"; fast_pattern; reference:url,github.com/tennc/webshell/blob/master/fuzzdb-webshell/asp/cmdasp.aspx; classtype:trojan-activity; sid:2045283; rev:1; metadata:affected_product Microsoft_IIS, attack_target Web_Server, created_at 2023_05_01, deployment Perimeter, deployment Internal, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, tag WebShell, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_05_01; target:dest_ip;)