alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Blackbeard Check-in"; flow:established,to_server; http.uri; content:"/task/2000"; endswith; reference:url,blog.avast.com/2014/01/15/win3264blackbeard-pigeon-stealthiness-techniques-in-64-bit-windows-part-1/; classtype:trojan-activity; sid:2018120; rev:3; metadata:created_at 2014_02_12, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_04_27;)