I guess this is the worst case. I have a file which was initially base64 encoded. This step was easy. But now all I can see is a bunch of rubbish. No structure, nearlly a maximum of entropy, no periods nothing. I have no more information except:
- the size of 5120 KByte
- there is more than one file inside of this
- they are all of the same type
- the used encryption or compression or whatever algorithm is used is some "standard" one
I tested so many things ... Does anyone of you has a clue on how to go forward? I am running out of ideas.
Edit: The histogram which has been now deleted was not correct. Anyway I have no idea how to go on further. Trying to open it with truecrypt to be sure it is not a container didn't work. Do you have any more tips on how to find the files in this?