alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET POLICY Yahoo Crawler User Agent"; flow:established,to_server; http.user_agent; content:"Yahoo-MMCrawler"; nocase; reference:url,mms-mmcrawler-support@yahoo-inc.com; classtype:not-suspicious; sid:2002832; rev:10; metadata:attack_target Web_Server, created_at 2010_07_30, deployment Perimeter, confidence High, signature_severity Informational, tag WebCrawler, updated_at 2024_02_06, mitre_tactic_id TA0043, mitre_tactic_name Reconnaissance, mitre_technique_id T1593, mitre_technique_name Search_Open_Websites;)