alert tcp $HOME_NET any -> $EXTERNAL_NET [:32768] (msg:"ET MALWARE [PTsecurity] Backdoor.Java.Adwind.cu pkt Checker flowbit set 4"; flow:established,to_server; flowbits:isset, FB332502_1; flowbits:set, FB332502_2; flowbits:unset, FB332502_1; flowbits:noalert; content:"|1703|"; depth:2; byte_test:2, >=,1024, 1, relative; byte_test:2, <=,1100, 1, relative; stream_size:server, >,1889; stream_size:server, <,2124; stream_size:client, >,1476; stream_size:client, <,1722; reference:md5,d93dd17a9adf84ca2839708d603d3bd6; classtype:trojan-activity; sid:2024754; rev:4; 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 2024_03_14;)