alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET WEB_CLIENT Fake Virus Phone Scam Landing Nov 16"; flow:established,to_server; content:"GET"; http_method; content:".html?os="; http_uri; fast_pattern; content:"&clickid=w"; distance:0; http_uri; pcre:"/&clickid=w[A-Z0-9]{23}$/U"; classtype:social-engineering; sid:2022103; rev:3; metadata:created_at 2015_11_17, confidence High, signature_severity Minor, updated_at 2019_08_16;)