Windows_VulnDriver_Zam_316a045d

rule Windows_VulnDriver_Zam_316a045d {
    meta:
        author = "Elastic Security"
        id = "316a045d-9a46-44e6-8340-8dc3163cd72d"
        fingerprint = "5881437982ff151cda012ec6b90ab898bf04230c3aeaec1c853f833b12e25f65"
        creation_date = "2026-05-22"
        last_modified = "2026-07-29"
        description = "Subject: Zemana Ltd., Version: <= 2.74.0.259"
        threat_name = "Windows.VulnDriver.Zam"
        reference_sample = "40b62ba97ba2edd3e01ed62d26ae8c09f36144ab33db18b42e5f1ccf82db1754"
        severity = 50
        arch_context = "x86"
        scan_context = "file"
        license = "Elastic License v2"
        os = "windows"
    strings:
        $subject_name = { 06 03 55 04 03 [2] 5A 65 6D 61 6E 61 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 5A 00 41 00 4D 00 2E 00 65 00 78 00 65 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-\x01][\x00-\x00][\x00-\xff][\x00-\xff][\x00-\xff][\x00-\xff]|[\x00-\x49][\x00-\x00][\x02-\x02][\x00-\x00][\x00-\xff][\x00-\xff][\x00-\xff][\x00-\xff]|[\x4a-\x4a][\x00-\x00][\x02-\x02][\x00-\x00]([\x00-\xff][\x00-\x00]|[\x00-\x02][\x01-\x01])[\x00-\x00][\x00-\x00]|[\x4a-\x4a][\x00-\x00][\x02-\x02][\x00-\x00][\x03-\x03][\x01-\x01][\x00-\x00][\x00-\x00])/
        $str1 = "zam64.pdb"
        $str2 = "IOCTL_CHECK_DRIVER_DISPATCH_ROUTINES"
        $str3 = "IOCTL_FIX_CRITICAL_KERNEL_FUNCTIONS"
    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
}