alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET USER_AGENTS Suspicious User-Agent (webfile)"; flow:established,to_server; http.user_agent; content:"webfile"; startswith; reference:url,threatexpert.com/reports.aspx?find=upsh.playmusic.co.kr; classtype:trojan-activity; sid:2013883; rev:8; metadata:affected_product Any, attack_target Client_Endpoint, created_at 2011_11_08, deployment Perimeter, confidence High, signature_severity Major, tag User_Agent, updated_at 2024_04_13;)