I dont have much knowledge with assemblers. I beg ur pardon in advance.
I need to change an IP address in a win-binary (Net) where the IP its hard-coded. Just changing the IP with an Hex Editor would be that easy. But the new IP has longer Octet - e.g.
I want to change the 123.12.12.123 to 123.123.123.123 Just inserting some digits per Hex Editor makes the file corrupt (adresses from routines etc. are moving I guess).
What would be the "easiest" way to do that? Thanks.
Since you are dealing with a dot Net application, this will be super easy.
As dot Net application are 'compiled' using an Intermediate Language (IL), you may be able to recover something very close to the original source code. If the binary is not obfuscated/protected, you just have to open-up your application in a .NET editor.
DnSpy is the one that I find the most complete. Other software can be used, like ILSpy for instance.
Theses tools allows you to edit the decompiled code, then to re-compile it.
In your case, you have to find where this IP is being declared, change it to whatever you want, then recompile the binary.
This is not allays that easy, but you are lucky: you found the easier reverse-engineering case :)
