Windows_VulnDriver_Xhunter_197ce145

rule Windows_VulnDriver_Xhunter_197ce145 {
    meta:
        author = "Elastic Security"
        id = "197ce145-3854-45f9-ba85-3fd501018b42"
        fingerprint = "c6398a069038b30461d447c31bd210c1718bbeb2c07853f2eb0f4151a20e5705"
        creation_date = "2026-07-20"
        last_modified = "2026-08-11"
        description = "Subject: Wellbia.com Co., Ltd., Version: <= 3.4.2.150"
        threat_name = "Windows.VulnDriver.Xhunter"
        reference_sample = "e727d0753d2cd0b2f6eeba4cea53aa10b3ff3ed2afeb78f545fcf6d840f85c3e"
        severity = 50
        arch_context = "x86"
        scan_context = "file"
        license = "Elastic License v2"
        os = "windows"
    strings:
        $subject_name = { 06 03 55 04 03 [2] 57 65 6C 6C 62 69 61 2E 63 6F 6D 20 43 6F 2E 2C 20 4C 74 64 2E }
        $original_file_name = { 4F 00 72 00 69 00 67 00 69 00 6E 00 61 00 6C 00 46 00 69 00 6C 00 65 00 6E 00 61 00 6D 00 65 00 00 00 78 00 68 00 75 00 6E 00 74 00 65 00 72 00 31 00 2E 00 73 00 79 00 73 00 00 00 }
        $version = /V\x00S\x00_\x00V\x00E\x00R\x00S\x00I\x00O\x00N\x00_\x00I\x00N\x00F\x00O\x00\x00\x00{0,4}\xbd\x04\xef\xfe[\x00-\xff]{4}([\x00-\xff][\x00-\xff][\x00-\x02][\x00-\x00][\x00-\xff][\x00-\xff][\x00-\xff][\x00-\xff]|[\x00-\x03][\x00-\x00][\x03-\x03][\x00-\x00][\x00-\xff][\x00-\xff][\x00-\xff][\x00-\xff]|[\x04-\x04][\x00-\x00][\x03-\x03][\x00-\x00][\x00-\xff][\x00-\xff][\x00-\x01][\x00-\x00]|[\x04-\x04][\x00-\x00][\x03-\x03][\x00-\x00][\x00-\x95][\x00-\x00][\x02-\x02][\x00-\x00]|[\x04-\x04][\x00-\x00][\x03-\x03][\x00-\x00][\x96-\x96][\x00-\x00][\x02-\x02][\x00-\x00])/
        $str1 = "xhunter64.pdb"
        $str2 = "XIGNCODE3" wide
        $str3 = "XIGNCODE3 System Guard" wide
    condition:
        int16(uint32(0x3C) + 0x5c) == 0x0001 and int16(uint32(0x3C) + 0x18) == 0x020b and $subject_name and $original_file_name and $version and $str1 and $str2 and $str3
}