Windows heap dump file (.hdmp)
.hdmp file signature | application/octet-stream
Magic Bytes
Offset: 0
4D 44 4D 50 93 A7
Windows heap dump file
Sources: Gary Kessler
Validation Code
How to validate .hdmp files in Python
def is_hdmp(file_path: str) -> bool:
"""Check if file is a valid HDMP by magic bytes."""
signature = bytes([0x4D, 0x44, 0x4D, 0x50, 0x93, 0xA7])
with open(file_path, "rb") as f:
return f.read(6) == signatureHow to validate .hdmp files in Node.js
function isHDMP(buffer: Buffer): boolean {
const signature = Buffer.from([0x4D, 0x44, 0x4D, 0x50, 0x93, 0xA7]);
return buffer.subarray(0, 6).equals(signature);
}How to validate .hdmp files in Go
func IsHDMP(data []byte) bool {
signature := []byte{0x4D, 0x44, 0x4D, 0x50, 0x93, 0xA7}
if len(data) < 6 {
return false
}
return bytes.Equal(data[:6], signature)
}API Endpoint
/api/v1/hdmp
curl https://filesignature.org/api/v1/hdmp
See the full API documentation for all endpoints and parameters.
Frequently Asked Questions
What is a .hdmp file?
A .hdmp file is a Windows heap dump file file. Windows heap dump file
What are the magic bytes for .hdmp files?
The magic bytes for Windows heap dump file files are 4D 44 4D 50 93 A7 at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.
How do I validate a .hdmp file?
To validate a .hdmp file, read the first bytes of the file and compare them against the known magic bytes (4D 44 4D 50 93 A7) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.
What is the MIME type for .hdmp files?
There is no officially registered MIME type for .hdmp files. Systems typically use application/octet-stream as a generic fallback when handling this format.
Is it safe to open .hdmp files?
Windows heap dump file (.hdmp) 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.