Reverse engineering mission

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Reverse engineering mission

Post by boriz666 on Fri Oct 02, 2015 6:01 am
([msg=89940]see Reverse engineering mission[/msg])

Two binary challenges has been made, these are not my own, but found them as part
of a challenge to a 3 letter agencys potential new recruits.

The challenges are zipped and password protected with the pass: 'infected'.

Some anti-virus vendors might see these files as malware since they use similar techniques.

Challenge 1
This binary file contains a way for you to submit your answers.
When you find it you will also need to answer the following question about challenge 1:

At what address can the tail jump to the original code be found?

Challenge 2
In your answer please provide the following:

A description of the overall purpose and functionality of the binary file
The decrypted content of data.bin and data2.bin
A script to decrypt any version of data.bin without the binary. Preferably in python but this can be in any language as long as it is not compiled.

Challenge (download zipfiles).
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Re: Reverse engineering mission

Post by -Ninjex- on Fri Oct 02, 2015 6:27 am
([msg=89942]see Re: Reverse engineering mission[/msg])

Thanks for the share, it sound interesting! I may look into these when I get spare time.

For everyone else, as always: be careful with (random) downloads. This sounds like fun, but the source has not been verified, so if you decide to download the challenges, keep that mind.
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