alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET WEB_SERVER DataCha0s Web Scanner/Robot"; flow:established,to_server; http.user_agent; content:"DataCha0s"; nocase; depth:9; reference:url,www.internetofficer.com/web-robot/datacha0s.html; classtype:web-application-activity; sid:2003616; rev:41; metadata:created_at 2010_07_30, signature_severity Unknown, updated_at 2020_10_19;)