Windows_VulnDriver_WinIo_7f97fe77

rule Windows_VulnDriver_WinIo_7f97fe77 {
    meta:
        author = "Elastic Security"
        id = "7f97fe77-e25d-46cc-8ce8-689080d802b3"
        fingerprint = "93acfbb7d61efab2b77e71820158cd60cc3fae8dc3504f87aacdf4f3f9f7803a"
        creation_date = "2026-05-22"
        last_modified = "2026-07-29"
        description = "Subject: ITE Tech. Inc., Version: <= 6.0.6000.16386"
        threat_name = "Windows.VulnDriver.WinIo"
        reference_sample = "f4acfebd83a351029dd812a0e40b44f5362f31ae80b6ae0b2fa2241687d34912"
        severity = 50
        arch_context = "x86"
        scan_context = "file"
        license = "Elastic License v2"
        os = "windows"
    strings:
        $subject_name = { 06 03 55 04 03 [2] 49 54 45 20 54 65 63 68 2E 20 49 6E 63 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 77 00 69 00 6E 00 69 00 6F 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-\x05][\x00-\x00][\x00-\xff][\x00-\xff][\x00-\xff][\x00-\xff]|[\x00-\x00][\x00-\x00][\x06-\x06][\x00-\x00][\x00-\xff][\x00-\xff]([\x00-\xff][\x00-\x00]|[\x00-\xff][\x01-\x16]|[\x00-\x6f][\x17-\x17])|[\x00-\x00][\x00-\x00][\x06-\x06][\x00-\x00]([\x00-\xff][\x00-\x00]|[\x00-\xff][\x01-\x3f]|[\x00-\x01][\x40-\x40])[\x70-\x70][\x17-\x17]|[\x00-\x00][\x00-\x00][\x06-\x06][\x00-\x00][\x02-\x02][\x40-\x40][\x70-\x70][\x17-\x17])/
        $str1 = "WinIo.pdb"
        $str2 = "IOCTL_WRITE_PORT_UCHAR"
        $str3 = "IOCTL_READ_PORT_UCHAR"
        $str4 = "WINIOx64 Driver Version 1.1 " wide
        $str5 = "winio.sys x64 Driver" 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 and $str4 and $str5
}