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Windows OSVolume Shadow Copy (.vsc)

.vsc file signature | application/octet-stream

Windows OSVolume Shadow Copy, index block header

Safe

Magic Bytes

Offset 0
68 87 08 38 76 C1 48 4E B7 AE 04 04 6E 6C C7 52 01 00

Sources: Gary Kessler

Extension

.vsc

MIME Type

application/octet-stream

Byte Offset

0

Risk Level

Safe

Validation Code

How to validate .vsc files in Python

Python 
def is_vsc(file_path: str) -> bool:
    """Check if file is a valid VSC by magic bytes."""
    signature = bytes([0x68, 0x87, 0x08, 0x38, 0x76, 0xC1, 0x48, 0x4E, 0xB7, 0xAE, 0x04, 0x04, 0x6E, 0x6C, 0xC7, 0x52, 0x01, 0x00])
    with open(file_path, "rb") as f:
        return f.read(18) == signature

How to validate .vsc files in Node.js

Node.js 
function isVSC(buffer: Buffer): boolean {
  const signature = Buffer.from([0x68, 0x87, 0x08, 0x38, 0x76, 0xC1, 0x48, 0x4E, 0xB7, 0xAE, 0x04, 0x04, 0x6E, 0x6C, 0xC7, 0x52, 0x01, 0x00]);
  return buffer.subarray(0, 18).equals(signature);
}

How to validate .vsc files in Go

Go 
func IsVSC(data []byte) bool {
    signature := []byte{0x68, 0x87, 0x08, 0x38, 0x76, 0xC1, 0x48, 0x4E, 0xB7, 0xAE, 0x04, 0x04, 0x6E, 0x6C, 0xC7, 0x52, 0x01, 0x00}
    if len(data) < 18 {
        return false
    }
    return bytes.Equal(data[:18], signature)
}

API Endpoint

GET /api/v1/vsc
curl https://filesignature.org/api/v1/vsc

See the full API documentation for all endpoints and parameters.

Frequently Asked Questions

What is a .vsc file?

A .vsc file is a Windows OSVolume Shadow Copy file. Windows OSVolume Shadow Copy, index block header

What are the magic bytes for .vsc files?

The magic bytes for Windows OSVolume Shadow Copy files are 68 87 08 38 76 C1 48 4E B7 AE 04 04 6E 6C C7 52 01 00 at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.

How do I validate a .vsc file?

To validate a .vsc file, read the first bytes of the file and compare them against the known magic bytes (68 87 08 38 76 C1 48 4E B7 AE 04 04 6E 6C C7 52 01 00) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.

What is the MIME type for .vsc files?

There is no officially registered MIME type for .vsc files. Systems typically use application/octet-stream as a generic fallback when handling this format.

Is it safe to open .vsc files?

Windows OSVolume Shadow Copy (.vsc) files are generally safe to open. They are classified as low risk because they primarily contain data rather than executable code. However, always ensure files come from a trusted source.