alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET POLICY Peach C++ Library User Agent Outbound"; flow:established,to_server; http.header; content:!"Tree"; within:4; http.user_agent; content:"Peach"; nocase; depth:5; reference:url,www.useragentstring.com/pages/useragentstring.php; reference:url,www.useragentstring.com/Peach1.01_id_12276.php; classtype:attempted-recon; sid:2013056; rev:6; metadata:created_at 2011_06_17, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_10_14;)