Magic Bytes

Executable Binaries	Mnemonic	Magic Bytes Signature
`DOS Executable`	`“MZ”`	`0x4D 0x5A`
`PE32 Executable`	`“MZ”…”PE..”`	`0x4D 0x5A … 0x50 0x45 0x00 0x00`
`Mach-O Executable (32 bit)`	`“FEEDFACE”`	`0xFE 0xED 0xFA 0xCE`
`Mach-O Executable (64 bit)`	`“FEEDFACF”`	`0xFE 0xED 0xFA 0xCF`
`ELF Executable`	`”.ELF”`	`0x7F 0x45 0x4C 0x46`

Compressed Archives	Mnemonic	Signature
`Zip Archive`	`“PK..”`	`0x50 0x4B 0x03 0x04`
`Rar Archive`	`“Rar!…”`	`0x52 0x61 0x72 0x21 0x1A 0x07 0x01 0x00`
`Ogg Container`	`“OggS”`	`0x4F 0x67 0x67 0x53`
`Matroska/EBML Container`	`N/A`	`0x45 0x1A 0xA3 0xDF`

Image File Formats	Mnemonic	Signature
`PNG Image`	`”.PNG…”`	`0x89 0x50 0x4E 0x47 0x0D 0x0A 0x1A 0x0A`
`BMP Image`	`“BM”`	`0x42 0x4D`
`GIF Image`	`“GIF87a”`	`0x47 0x49 0x46 0x38 0x37 0x61`
	`“GIF89a”`	`0x47 0x49 0x46 0x38 0x39 0x61`