alert tcp $EXTERNAL_NET 3000:8000 -> $HOME_NET any (msg:"ET DELETED Unknown Trojan P2P Data Download"; flow:established,from_server; dsize:>1000; content:"|00 00 00|"; depth:5; offset:2; content:"|00 01 01 00 00 05 00 00|"; distance:1; within:9; threshold:type both, count 5, seconds 120, track by_dst; reference:url,www.chinatechnews.com/2008/07/21/7014-baofengcom-shifts-to-internet-video-sector/; classtype:trojan-activity; sid:2008770; rev:6; metadata:created_at 2010_07_30, signature_severity Unknown, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)