alert http any any -> [$HOME_NET,$HTTP_SERVERS] any (msg:"ET WEB_SERVER SLIGHTPULSE WebShell Access Inbound M3"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/licenseserverproto.cgi"; content:"serverid="; content:"csJ1TA45JzB0WJrjA5X8dpVbXcrDMVfa"; distance:0; within:35; fast_pattern; classtype:attempted-admin; sid:2033790; rev:1; metadata:created_at 2021_08_25, deployment SSLDecrypt, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_08_25;)