Rule History

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET USER_AGENTS Atomic_Email_Hunter User-Agent Outbound"; flow:established,to_server; http.user_agent; content:"Atomic_Email_Hunter/"; startswith; reference:url,www.useragentstring.com/pages/useragentstring.php; classtype:attempted-recon; sid:2013174; rev:5; metadata:created_at 2011_07_04, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_04_21;)