Windows Vista event log file (.evtx)
.evtx file signature | application/octet-stream
WindowsEvent ViewerXML file format
Magic Bytes
Offset 0
45 6C 66 46 69 6C 65
Sources: Wikipedia
All Known Signatures
2 signature variants are documented for .evtx files across multiple sources.
| Hex Signature | Offset | Sources |
|---|---|---|
| 45 6C 66 46 69 6C 65 | 0 | Wikipedia |
| 45 6C 66 46 69 6C 65 00 | 0 | Gary Kessler |
Extension
.evtx
MIME Type
application/octet-stream
Byte Offset
0
Risk Level
Safe
Validation Code
How to validate .evtx files in Python
def is_evtx(file_path: str) -> bool:
"""Check if file is a valid EVTX by magic bytes."""
signature = bytes([0x45, 0x6C, 0x66, 0x46, 0x69, 0x6C, 0x65])
with open(file_path, "rb") as f:
return f.read(7) == signatureHow to validate .evtx files in Node.js
function isEVTX(buffer: Buffer): boolean {
const signature = Buffer.from([0x45, 0x6C, 0x66, 0x46, 0x69, 0x6C, 0x65]);
return buffer.subarray(0, 7).equals(signature);
}How to validate .evtx files in Go
func IsEVTX(data []byte) bool {
signature := []byte{0x45, 0x6C, 0x66, 0x46, 0x69, 0x6C, 0x65}
if len(data) < 7 {
return false
}
return bytes.Equal(data[:7], signature)
}API Endpoint
/api/v1/evtx
curl https://filesignature.org/api/v1/evtx
See the full API documentation for all endpoints and parameters.
Frequently Asked Questions
What is a .evtx file?
A .evtx file is a Windows Vista event log file file. WindowsEvent ViewerXML file format
What are the magic bytes for .evtx files?
The magic bytes for Windows Vista event log file files are 45 6C 66 46 69 6C 65 at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.
How do I validate a .evtx file?
To validate a .evtx file, read the first bytes of the file and compare them against the known magic bytes (45 6C 66 46 69 6C 65) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.
What is the MIME type for .evtx files?
There is no officially registered MIME type for .evtx files. Systems typically use application/octet-stream as a generic fallback when handling this format.
Is it safe to open .evtx files?
Windows Vista event log file (.evtx) 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.