alert http $EXTERNAL_NET any -> any any (msg:"ET EXPLOIT NetGain Systems Enterprise Manager CVE-2017-16602 (Inbound)"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/u/jsp/tools/exec.jsp?command=cmd+%2Fc+ping&argument="; depth:53; fast_pattern; content:"http"; distance:0; reference:url,unit42.paloaltonetworks.com/mirai-variant-echobot-resurfaces-with-13-previously-unexploited-vulnerabilities/; reference:cve,2017-16602; classtype:attempted-admin; sid:2029163; rev:3; metadata:affected_product Linux, attack_target IoT, created_at 2019_12_16, cve CVE_2017_16602, deployment Perimeter, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_10_26;)