alert tcp $EXTERNAL_NET [:32768] -> $HOME_NET any (msg:"ET MALWARE [PTsecurity] Backdoor.Java.Adwind.cu"; flow:established, to_client; content:"|17 03|"; depth:2; content:"|00 50|"; distance:1; within:2; fast_pattern; stream_size:server, >,1889; stream_size:server, <,2436; stream_size:client, >,1476; stream_size:client, <,8834; flowbits:isset, FB332502_3; flowbits:unset, FB332502_3; threshold:type limit, track by_src, count 1, seconds 30; reference:md5,d93dd17a9adf84ca2839708d603d3bd6; classtype:trojan-activity; sid:2024756; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_09_21, deployment Perimeter, malware_family Adwind, performance_impact Moderate, confidence High, signature_severity Major, updated_at 2019_07_26;)