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CrackMeBoi

Ninjego1
Ninjego1
in CrackMe

Featured Replies

Posted

CrackMeBoi

I made a custom obfuscator and I haven't made any progress cracking it so please crack the file with my custom .NET obfuscator.

Do not use OllyDbg or any software of that kind, you can use Mega Dumper and other tools similar.

File Information

Submitter Ninjego1

Submitted 06/03/2020

Category CrackMe

View File

CrackMeBoi

Spoiler

弛他地池也

It's not good i think. Big file size, not encrypted strings or not emulated calls. Only bp true function and get valid serial.

  • 4 weeks later...

Screenshot_20200702_134811.png.cd8ccf9615f510b1fa5c5ef36b1c97c8.png

Approach:

 

Spoiler
  1. Run app
  2. Attach windbg
  3. lm to get module address, !savemodule address dump.bin
  4. Open dump.bin in .NET disassembler/decompiler of choice, find main form button click handler, search call to TextBox::get_Text, observe serial in plaintext.

Screenshot_20200702_134401.png.96486c1f3f4a3f3f1996b3d2c1bb0265.png

 

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