alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET DELETED Beagle User Agent Detected"; flow:to_server,established; dsize:<150; content:"User-Agent|3a| beagle_beagle"; nocase; reference:url,securityresponse.symantec.com/avcenter/venc/data/w32.beagle.i@mm.html; classtype:trojan-activity; sid:2001269; rev:17; metadata:created_at 2010_07_30, signature_severity Unknown, updated_at 2019_07_26;)