alert http $EXTERNAL_NET any -> $HTTP_SERVERS $HTTP_PORTS (msg:"VEDAS CVE-2016-3081 Apache Struts - Command Injection"; flow:established,to_server; http.uri; content:"index.action"; nocase; fast_pattern; content:"passwd"; nocase; classtype:web-application-attack; reference:cve,CVE-2016-3081; reference:url,https://www.exploit.observer/?keyword=CVE-2016-3081&match=exact; reference:url,https://subdomain.center/?engine=ammonites&keyword=struts&match=exact; sid:1011160; rev:1;)