alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/Unknown Stealer Data Exfiltration Attempt"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/bitrix/main.php"; http.request_body; content:"|3a 0b 5b 45 51 11 43 58 36|"; fast_pattern; startswith; reference:md5,46dae0e0b64923b60f5c471cafca79b1; classtype:trojan-activity; sid:2049817; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, attack_target Client_Endpoint, created_at 2023_12_21, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, updated_at 2023_12_21; target:src_ip;)