The primary – and by far the most popular – feature of binwalk is its signature scanning.

Binwalk can scan a firmware image for many different embedded file types and file systems; just tell binwalk which file(s) it needs to scan:

$ binwalk firmware.bin

0         	0x0       	DLOB firmware header, boot partition: "dev=/dev/mtdblock/2"
112       	0x70      	LZMA compressed data, properties: 0x5D, dictionary size: 33554432 bytes, uncompressed size: 3797616 bytes
1310832   	0x140070  	PackImg section delimiter tag, little endian size: 13644032 bytes; big endian size: 3264512 bytes
1310864   	0x140090  	Squashfs filesystem, little endian, version 4.0, compression:lzma, size: 3264162 bytes,  1866 inodes, blocksize: 65536 bytes, created: Tue Apr  3 04:12:22 2012


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