alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE VersaMem Webshell Authentication Attempt M1"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"p|3d|"; content:"clzd|3d|"; fast_pattern; reference:url,blog.lumen.com/taking-the-crossroads-the-versa-director-zero-day-exploitation/; classtype:trojan-activity; sid:2055535; rev:1; metadata:attack_target Server, tls_state TLSDecrypt, created_at 2024_08_27, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, updated_at 2024_08_27; target:dest_ip;)