alert tcp $EXTERNAL_NET 1024:65535 -> $HOME_NET any (msg:"ET MALWARE Bandook v1.35 Start Socks5 Proxy Command Send"; flowbits:isset,BE.Bandook1.35; flow:established,from_server; dsize:>6; content:"|a7 a0 a7 ae 95|"; offset:0; depth:5; reference:url,www.nuclearwintercrew.com; reference:url,research.sunbelt-software.com/threatdisplay.aspx?name=Bandook&threatid=40408; classtype:trojan-activity; sid:2003563; rev:5; metadata:created_at 2010_07_30, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)