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Solved: amdgpu MES firmware binary file

Imagine you work on a security team in the forensics division. You have been given WiFi network’s firmware to determine whether firmware a suspicious binary is dangerous or not. We appreciate the network administrator’s assistance in pointing out the target file.

  • After a few seconds, the firmware will be flashed into your ESP32 board.
  • Have you downloaded a game or program from Internet and now you come across a BIN file that you don’t know how to open?
  • AFAIK there are no shrink wrapped solutions for updating files on a file system, so you get to create your own.
  • Many of the analysis tools available, will be based on binary formats and obtaining a binary is an important task in case at some point you want to perform a full emulation of the device.
  • Depending on your platform this may or may not be the case.

A study of the entropy across a firmware image, therefore, can reveal encrypted or compressed sections. Before trying to identify the sections with file systems, to understand their contents, it is useful to identify the format of the firmware image.

firmware bin file

In them it is possible to find signatures of formats or algorithms used to generate them. This is a clear example of taking entropy as an accurate measure of randomness is a mistake.

The researcher must consult the documentation of the tool used to be sure to perform a conversion to binary format. Hence our next step is to find the correct loading address in memory for a STM32 firmware. This information can often be found in the device datasheet and in compiler header files. Again, a start code is defined along with different fields to describe data records in hexadecimal format. It can be distinguished because in this case the start code is an ‘S’. To convert this format to binary, the same tools can be used as in the previous section.

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