Windows virtual device drivers
application/octet-stream
Magic Bytes
Offset: 0
4D 5A 90 00 03 00 00 00
Windows virtual device drivers (VXD) are kernel-level files developed by Microsoft for use in early versions of the Windows operating system. They were primarily used to manage hardware resources and provide virtualization for device access in Windows 3.x and Windows 9x environments. Now considered an obsolete legacy format, these drivers have been replaced by the Windows Driver Model in modern versions of Windows starting with Windows 2000.
Validation Code
How to validate .vxd files in Python
Python
def is_vxd(file_path: str) -> bool:
"""Check if file is a valid VXD by magic bytes."""
signature = bytes([0x4D, 0x5A, 0x90, 0x00, 0x03, 0x00, 0x00, 0x00])
with open(file_path, "rb") as f:
return f.read(8) == signatureHow to validate .vxd files in Node.js
Node.js
function isVXD(buffer: Buffer): boolean {
const signature = Buffer.from([0x4D, 0x5A, 0x90, 0x00, 0x03, 0x00, 0x00, 0x00]);
return buffer.subarray(0, 8).equals(signature);
}
Go
func IsVXD(data []byte) bool {
signature := []byte{0x4D, 0x5A, 0x90, 0x00, 0x03, 0x00, 0x00, 0x00}
if len(data) < 8 {
return false
}
return bytes.Equal(data[:8], signature)
}API Endpoint
GET
/api/v1/vxd
curl https://filesignature.org/api/v1/vxd