alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE WARP Win32/Barkiofork.A"; flow:established,to_server; http.uri; content:"/s/asp?"; fast_pattern; content:"p=1"; endswith; http.user_agent; content:"Mozilla/4.0 (compatible|3b 20|)"; depth:26; endswith; reference:url,www.mandiant.com/apt1; reference:md5,7acb0d1df51706536f33bbdb990041d3; classtype:trojan-activity; sid:2016447; rev:4; metadata:created_at 2013_02_20, malware_family Win32_Barkiofork_A, signature_severity Major, updated_at 2020_10_14;)