SkinCrafter skin file
application/octet-stream
Magic Bytes
Offset: 0
07 53 4B 46
SkinCrafter skin file (SKF) is a proprietary resource format developed by DMSoft Technologies for use with the SkinCrafter skinning engine. These files allow software developers to customize the graphical user interface of Windows applications by defining visual elements like buttons, windows, and menus. While largely considered a legacy format due to the evolution of modern UI frameworks, SKF files are generally safe as they contain static graphical data rather than executable code.
Validation Code
How to validate .skf files in Python
Python
def is_skf(file_path: str) -> bool:
"""Check if file is a valid SKF by magic bytes."""
signature = bytes([0x07, 0x53, 0x4B, 0x46])
with open(file_path, "rb") as f:
return f.read(4) == signatureHow to validate .skf files in Node.js
Node.js
function isSKF(buffer: Buffer): boolean {
const signature = Buffer.from([0x07, 0x53, 0x4B, 0x46]);
return buffer.subarray(0, 4).equals(signature);
}
Go
func IsSKF(data []byte) bool {
signature := []byte{0x07, 0x53, 0x4B, 0x46}
if len(data) < 4 {
return false
}
return bytes.Equal(data[:4], signature)
}API Endpoint
GET
/api/v1/skf
curl https://filesignature.org/api/v1/skf