Questions tagged [binwalk]

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Binwalk on flash dump yielding useless files and empty file systems

I have been investigating some routers by desoldering their nand flash and dumping them using a flash programmer. However when I use binwalk on these dumps I end up with fragments of files mixed in ...
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40 views

Why do some firmware binaries have more than 1 file system structures

As I unpack and explore the packing structure of firmware, I am noticing that some firmware will have several file system structures. I can't seem to find any documentation as to why one device may ...
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1answer
73 views

Unpacking, modifying, repacking and flashing a firmware

I've been trying to figure out how to modify the firmware on a DVR I bought for cheap recently. The built in software isn't great and doesn't offer any option for exporting video other than plugging a ...
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1answer
85 views

Recognize binary architecture

I have binary that run on Arm Thumb cpu, in embedded devive that not running Linux. When I tried to run bimwalk or file ,and even open it with Ida ,but they didn't find out that this binary run on ...
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573 views

Windows binwalk refuses to extract files

I'm trying to reverse engineer the firmware for an AutoDrive AD-520 dashcam. The firmware is available for download here. I've installed binwalk on windows, I can get it to read the file just fine, ...
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2answers
210 views

Repacking an embedded initramfs

I'd like to modify some of the init scripts in an initramfs that is embedded in a kernel bzImage. I know I can modify them by not changing the size of any files (e.g. by commenting out lines, and ...
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127 views

No false positive on binwalk

I have the same problem from my previous post but this time, I don't think it's the same culprit again as I have solved the problems. This time, I'm very sure I had extracted the firmware. On my ...
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190 views

Analyzing firmware image (eCos with YAFFS)

I'm trying to apply some of the practices I learn in class and online and reverse engineer the firmware of a Chinese dash camera. I've downloaded the firmware from their website (Smart dash camera: ...
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342 views

How to proceed after running binwalk on this firmware?

I'm trying to access the firmware from the .bin in this archive: http://mydjiflight.dji.com/file/links/OSMO_ACTION_V17020_20191203_ZIP So far I've used binwalk and gotten the following output: ...
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43 views

Possibly infected image

Long story short I'v downloaded a template for my website and instead of images it has the .html files included, and at the beginning those html files do include PNG IHDR , and they are being loaded ...
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109 views

Extract files of a SquashFS Filesystem

I already asked a similar question but after a deeper analysis of the filesystem I found out that I misunderstood the problem and that's why I decided to delete the old question and make a new one. I ...
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130 views

Blank binwalk and binvis.io

I've been trying to extract a Bluetooth door lock's firmware. When I tried extracting it, I got an empty output. I then found a post which I thought would help me but when I tried using binvis.io, ...
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38 views

How good is Cryptochecker (CC) by Aleph for binary analysis compared to the modern alternatives

I've been using the tool called CC by Aleph for ages now. To my own surprise, having found this tool on some forum, the tools remains largely undiscovered even by the cryptography/reverse engineering ...
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129 views

Reversing Philips TV firmware

This is more an experiment than anything else, but here it goes, I'm no RE expert, but I have this Philips TV around, whose firmware can be downloaded here I unpacked it with binwalk and got this as ...
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167 views

Extracting specific files from a unknown archive file format

I'm trying to extract some binary blobs from a unknown archive format. (*.pakz). I know this archive contains some .xtreme binary files that are the files I'm looking for. My goal is to extract those ...
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1answer
555 views

CSR DFU File Format

I am trying to reverse engineer the firmware for my JBL Flip 3 speaker. I have obtained a DFU file for the device online but am unsure as to how much of the firmware is included. My first question ...
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1answer
527 views

Problem with analyzing a JFFS2 Filesystem

I extracted the content of a NAND Flash and analyzed it with binwalk. Binwalk showed me that the dump contains a big endian JFFS2 filesystem. My next step was extracting the files into a directory. To ...
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1answer
1k views

Binwalk to Extract Firmware is not working for me

I'm trying to extract code from Yuneec Drone Firmware and I've run into some issues. Currently when I run binwalk agains the file, I get the following issues: binwalk autopilot.yuneec.bin DECIMAL ...
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0answers
496 views

Extracting firmware image from binary

I have firmware file in .bin format, but I need get firmware.img image file and Kernel uImage file for reflashing bricked device. How can I get these parts? I used Binwalk to extract content, ...
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2answers
381 views

Reverse Engineering Firmware Aether Cone

I have been trying to work out if its possible to reverse engineer the firmware for the Aether Cone. This is a good sound quality WIFI and Bluetooth speaker, but with Aether going bust, there is no ...
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386 views

unsquashfs failed to read SquashFS file

I tried to unpack binary which is SquashFS system, the file is mtd partition copied from NAND device, Root filesystem (read-only). Actually its SquashFS version, modifyed/patched by vendor. binwalk ...
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89 views

Can't install sasquatch tool

Ubuntu 16.04 LTS. I'm trying to install sasquatch tool (which should apply patches to the standard unsquashfs utility), but got the issue, every time build process show error in one place: ./build.sh:...
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301 views

Extracting Firmware file from Wireshark Dump

I updated a device over a firmware update software and sniffed the whole traffic with wireshark. There is a TCP Stream with ~30MB which I exported as raw data. The resulting file is Zip archived data ...
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1answer
1k views

Extracting SquashFS based filesystem

I'm trying to use binwalk to extract the firmware for the Ubiquiti Networks ER-X. Currently I've downloaded a copy of the firmware and uncompressed it. I opened the folder with the filesystem contents ...
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659 views

Firmware analysis, can't find file system

I'm TV repair tech and I've found that corrupted firmware is responsible for the failure of a large portion of the TV's I work on. I came up with the idea that if I could reverse engineer the ...
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1answer
2k views

Binwalk does not show anything when process binary

I tried use Binwalk to extract content of binary firmware image dumped from flash, but Binwalk does not show anything. I tried commands binwalk -Me file.bin binwalk --dd='.*' file.bin strings ...
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1answer
1k views

Binwalk extracted images corrupt?

I ran: $> binwalk --dd='jpeg:jpg' file.bin The JPGs (there are hundreds of them) are extracted but all of the JPGs experience varying levels of "corruption". Here's an example of what most of the ...
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2answers
1k views

How to unpack the Fortigate firmware?

I want to unpack the fortigate firmware - FGT_110C-v400-build0092-FORTINET.out. binwalk only gives a hint about gzip compressed data. ~/Documents# binwalk -i FGT_110C-v400-build0092-FORTINET.out ...