Microsoft Management Console Snap-in Control file

application/octet-stream

High
⚠️

High Risk Format

This file type can contain executable code. Always validate source and scan with antivirus before opening.

Magic Bytes

Offset: 0
3C 43 54 72 61 6E 73 54 69 6D 65 6C 69 6E 65 3E

The Microsoft Management Console (MSC) file is a system configuration format developed by Microsoft to facilitate administrative tasks within the Windows operating system. It functions as a container for various management tools, known as snap-ins, allowing users to control hardware, software, and network components through a unified interface. Because these files provide direct access to critical system privileges, they represent a high security risk and should only be executed from trusted sources.

Extension

.msc

MIME Type

application/octet-stream

Byte Offset

0

Risk Level

High

Validation Code

How to validate .msc files in Python

Python
def is_msc(file_path: str) -> bool:
    """Check if file is a valid MSC by magic bytes."""
    signature = bytes([0x3C, 0x43, 0x54, 0x72, 0x61, 0x6E, 0x73, 0x54, 0x69, 0x6D, 0x65, 0x6C, 0x69, 0x6E, 0x65, 0x3E])
    with open(file_path, "rb") as f:
        return f.read(16) == signature

How to validate .msc files in Node.js

Node.js
function isMSC(buffer: Buffer): boolean {
  const signature = Buffer.from([0x3C, 0x43, 0x54, 0x72, 0x61, 0x6E, 0x73, 0x54, 0x69, 0x6D, 0x65, 0x6C, 0x69, 0x6E, 0x65, 0x3E]);
  return buffer.subarray(0, 16).equals(signature);
}
Go
func IsMSC(data []byte) bool {
    signature := []byte{0x3C, 0x43, 0x54, 0x72, 0x61, 0x6E, 0x73, 0x54, 0x69, 0x6D, 0x65, 0x6C, 0x69, 0x6E, 0x65, 0x3E}
    if len(data) < 16 {
        return false
    }
    return bytes.Equal(data[:16], signature)
}

API Endpoint

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

Related Formats