alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Suspicious user agent (V32)"; flow:to_server,established; http.user_agent; content:"V"; depth:1; pcre:"/^\d{2}$/R"; classtype:trojan-activity; sid:2014090; rev:8; metadata:created_at 2011_06_07, confidence High, signature_severity Major, updated_at 2020_08_18;)