// REFERENCE
GIF signature
Signature (hex): 47 49 46 38 (GIF8)
A GIF starts with 47 49 46 38 (GIF87a or GIF89a). It's been used in polyglots (files that are both a GIF and another format) to bypass upload validation.
Related tools
Work with this in:
Related
png
PNG signature jpg
JPG/JPEG signature bmp
BMP signature webp
WebP signature tiff
TIFF signature ico
ICO signature
PNG signature jpg
JPG/JPEG signature bmp
BMP signature webp
WebP signature tiff
TIFF signature ico
ICO signature
Signatures verifiable with CyberEscudo's magic-bytes identifier. Educational content.