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Resources on C# executables and CE? HELP!

 
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marsinspace
How do I cheat?
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Joined: 02 Jul 2018
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PostPosted: Fri Jul 06, 2018 9:20 pm    Post subject: Resources on C# executables and CE? HELP! Reply with quote
I've done the requisite searches, reading, Googling, and what have you, and can't find a basic primer on handling a C# application in CE.

I'm guessing a .NET/Mono app is supposed to produce drop-down output in the "Enumerate DLL/Symbols" command? But my app process EXE is just listed first, and has no ">" to be expanded. Does this mean it is obfuscated?

My main problem is that (apparently?) .NET applications don't have invariant memory addresses OR pointers. So this means the memory scan or pointer scan is a waste of time?

A few threads have touted an Array of Bytes search as a solution to the .NET problem. But how so?

Also, a procedural question. Does one have to be a certain seniority or member level here to have questions read or answered? I've posted several questions now and not received a single reply. My apologies if I've done something wrong and offended the high elders of this community.
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ParkourPenguin
I post too much
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PostPosted: Fri Jul 06, 2018 11:04 pm    Post subject: Reply with quote
marsinspace wrote:
I've done the requisite searches, reading, Googling, and what have you, and can't find a basic primer on handling a C# application in CE.
It's not much different than anything else. Find values and change them.
marsinspace wrote:
I'm guessing a .NET/Mono app is supposed to produce drop-down output in the "Enumerate DLL/Symbols" command? But my app process EXE is just listed first, and has no ">" to be expanded. Does this mean it is obfuscated?
You probably won't find anything useful in there anyway. Most of the code you care about is probably JIT compiled and lies in dynamic memory. You might be looking for "Dissect mono" under the "Mono" menu in the main CE window.
marsinspace wrote:
My main problem is that (apparently?) .NET applications don't have invariant memory addresses OR pointers. So this means the memory scan or pointer scan is a waste of time?
Regular scans will work fine; pointer scans usually won't in my experience (base addresses were encoded as immediates in instructions).
marsinspace wrote:
A few threads have touted an Array of Bytes search as a solution to the .NET problem. But how so?
Look up "Code injection" / "AoB injection" and/or go through the CE tutorial.
marsinspace wrote:
Does one have to be a certain seniority or member level here to have questions read or answered?
No. It's just that your diction implies you're in over your head, and it usually isn't worth writing several paragraphs explaining everything. I still don't know what you're asking about C#, but it would probably help to learn a little about how C# works first (i.e. JIT compilation).
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