Kurapica's Hidden Code
| Download CrackME18.zip, 274 kb (password: crackmes.de) Browse contents of CrackME18.zip This is crackme #18 and it has some nice tricks, You must write a keygen and a tutor for the solution to be accepted.
Difficulty: 4 - Needs special knowledge | Send a message to Kurapica » View profile of Kurapica » |
Solutions
Solution by zzz048, published 28. feb, 2009; download (16 kb), password: crackmes.de or browse.
zzz048 has not rated this crackme yet.
Discussion and comments
| Filler 12. Oct 2008 | what I found: Rename the "FGTRxDFRTT44.dat" to FGTRxDFRTT44.exe, and you have the main App. But thats not all! Good job. I workin' on it!... |
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| Kurapica Author 12. Oct 2008 | This is one of the tricks but you will find that "FGTRxDFRTT44.exe" won't work unless fired by the loader ! |
| Filler 13. Oct 2008 | Hm? The "FGTRxDFRTT44.exe" will work without Loader, but the Serial check is inside the native "System.dll". and give a Bool to "FGTRxDFRTT44.exe". Right? :D |
| Sinok 13. Oct 2008 | This trick was used in almost all Command and Conquer games.. lol |
| MACH4 13. Oct 2008 | Oddly enough it will run but it's wouldn't be a stable executable file!!! |
| Kurapica Author 14. Oct 2008 | @Filler : yeah of course it works without the loader but it won't check for the license if not being loaded by the loader, that's what I meant. |
| Filler 14. Oct 2008 | Hehe nice! Today in the evening I try and catch the tricks ;) The obsfuscation makes it hard to understand. Could you tell me, why do you use "DebuggerAttributeBreakpoint"? greez |
| Kurapica Author 14. Oct 2008 | These attributes are set automatically by the compiler and in this crackme they are not important so keep an eye on the CheckLicense method. :-D |
| Kurapica Author 03. Nov 2008 | 168 downloads and no solutions yet !! is it that hard ? |
| main 03. Nov 2008 | Many crackmes, little time :/ |
| Filler 21. Dec 2008 | I think you write IL-instructions at Runtime, so no one can sea it in Reflector. Great work... It remeber me at the Anti-Debugger trick "Stolen Bytes". |
| Kurapica Author 01. Mar 2009 | @zzz048 : I'm amazed by your solution, well done. |
| simonzack Moderator 02. Mar 2009 | I'm still not quite sure how this works I think I need to dig deeper into the .net format Can somebody give me some suggestions of what articles/tuts to read? thanks |
| Kurapica Author 02. Mar 2009 | http://portal.b-at-s.info/download/CrackME18.zip.php?list.2 Happy reading. |
| simonzack Moderator 02. Mar 2009 | thanks a bunch :) |
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