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Challenge of Reverse Engineering

Try a challenge or contribute your own, any platform or operating system...

The creation of new topics is disabled in these subforum categories.

Please create and post your new challenges in the appropriate subcategory of Downloads > Challenge of Reverse Engineering

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  1. Ownage
    CrackMe · Started by Ownage,

    This is a easy FindMe level which I solved during a competition and I found it very interesting. I hope you will enjoy it. Have fun, password required. Unpacked.rar

    • 4 replies
    • 6.1k views
  2. estelle
    UnPackMe · Started by estelle,

    !- Protected Armadillo Protection system (Professional) !- <Protection Options> Debug-Blocker CopyMem-II Enable Memory-Patching Protections !- <Backup Key Options> Fixed Backup Keys !- <Compression Options> Better/Slower Compression !- <Other Options> 49347A80 Version 6.24 02-12-2008 !- Elapsed Time 00h 00m 01s 703ms Armadillo_V6.24.rar Unpack.rar

    • 4 replies
    • 9.8k views
  3. Vic
    KeygenMe · Started by Vic,

    Link to download it: http://www.mediafire.com/?p8ghmx2b9pvlazz Level: ?/10 Only find the serial or keygen it. Write a tut for it if u done and can. Source code: Download [Password] To public when this topic was done. Best regard, vic4key

      • Like
    • 4 replies
    • 4.7k views
  4. Ownage
    UnPackMe · Started by Ownage,

    Find a printable string that the program would print ultimately. Have fun, firstly by unpacking Unpack.zip

    • 8 replies
    • 6.7k views
  5. kao
    CrackMe · Started by kao,

    At this year's RSA2012 conference, Sophos is giving away cool crypto-puzzle T-shirts. Meet us on Booth #1817 and claim yours! You don't have to be at the show to take part in the puzzle. The text to use in solving the puzzle is shown below: #include~<string.h>!int~putchar(int~c);char~*m="noncen.cmh/alu/puyxs.hrhb\xd\xa";void~main(int~argc,char~**argv){if(argc>1&&strlen(argv[1])==8){int~i=0;while(*m){putchar(*m+(*m<0x41?0:argv[1][(++i>8?i=1:i)-1]-0x61));m++;};};} Solve this puzzle and you'll get a URL. Visit the URL and you'll face the second stage. Solve this and email the answer to Naked Security writer Paul Ducklin and get in the draw to win a NE…

    • 11 replies
    • 6.5k views
  6. mudlord
    UnPackMe · Started by mudlord,

    http://www.mudlord.i...ators/mugbx.exe http://www.mudlord.i...ators/mugbx.key http://www.mudlord.i...llotuts4you.txt />http://mudlord.info/temp/mugbx_unpackme.exe Uses the licensing system of Sheilden, plus all antidebug/obfuscation options, except the VM. Keysize is RSA-1024, using HWID locking. This is my own Gameboy emulator, packed with it. Hopefully the txt file is enough proof of this.

      • Like
    • 12 replies
    • 9.2k views
  7. ghsafsdfsdhfghfgjhgkj
    KeygenMe · Started by ghsafsdfsdhfghfgjhgkj,

    Builder - Visual Basic 6.0 Packers - Protectors -NsPack -PeCompact -Mew -UPX -Custom Note - No Patching! - Write Keygen. Size : 16,4 KB

      • Like
    • 6 replies
    • 5.5k views
    ghsafsdfsdhfghfgjhgkj
    ghsafsdfsdhfghfgjhgkj
  8. DE!
    KeygenMe · Started by DE!,

    Here's a thingie i made some long time ago, nothing fancy and not so difficult i guess so go ahead No patching, only a solution is a keygen I used UPX to compress Note : When using an invalid name and code combination, you'll get an access violation. Have fun. KGM!DE_1.rar

    • 5 replies
    • 6.5k views
  9. tarequl.hassan
    KeygenMe · Started by tarequl.hassan,

    Just KeyGen WITH SOURCE CODE IS ALLOWED http://www.mediafire...5ddzgnqtxwt06np KeyGenMe by tarequl.rar

      • Like
    • 10 replies
    • 8k views
  10. mdj
    UnPackMe · Started by mdj,

    hi all this file(vfp 8) packed like refox brand iii any one unpack it and pls post tutorial how can unpack link : http://uppit.com/zitdhnknnlw3/personal.rar thanks regards mdj

      • Like
    • 5 replies
    • 12.9k views
  11. smallyou93
    UnPackMe · Started by smallyou93,

    forward from http://www.52pojie.c...102581-1-1.html which is protected by ximo "Resource Protection" is a new protection option which is start appearing on the version 2.08, It is really difficult to unpack because of this protection. UnPackMe.rar

      • Like
    • 16 replies
    • 16.2k views
  12. tarequl.hassan
    KeygenMe · Started by tarequl.hassan,

    Here is a KeyFileMe. Lets Have a Try. Make a keyfileGenerator. Thanks for try. KeyfileMe.rar

      • Like
    • 5 replies
    • 6.5k views
  13. mrexodia
    CrackMe · Started by mrexodia,

    Hello everyone, Some time ago I posted an easy (1hour coding) crackme on hackforums.net but maybe here it'll be solved here faster Max time to solve should be 10 minutes (solve, not investigate)... Best regards, Mr. eXoDia CrackMe_HackForums-TPoDT.rar https://mega.nz/#!n4xmkArQ!ee5ElrB54EDNFMS5K2lvNk4q3O4AKSU2_eVpSjmUFlA

      • Like
    • 23 replies
    • 11.4k views
  14. Pushad
    KeygenMe · Started by Pushad,

    Hi this keygen has multiple skill level from 1 to 3 />http://www.mediafire.com/?657hn9xwdce24q2 Saadi.rar

    • 5 replies
    • 10k views
  15. Gladiator
    UnPackMe · Started by Gladiator,

    Hi Please Unpack and Remove Nag , In this target i have some new anti debug tricks ( may be works ) Thanks.

      • Like
    • 13 replies
    • 10.8k views
  16. AnTiCDLoCK
    UnPackMe · Started by AnTiCDLoCK,

    Hi All, Please Unpack this and give a Diff Level ? sure make a tut , greetz. Test6.rar

    • 4 replies
    • 7.8k views
  17. BEHESHT
    KeygenMe · Started by BEHESHT,

    Hi keygen it & wirte tutorial or give your source code level : esay and give point how many of 10 . Good luck KeygenMe3.rar

      • Like
    • 3 replies
    • 7.7k views
  18. Sh4DoVV
    UnPackMe · Started by Sh4DoVV,

    Hi friends Please unpack this target Go0d luck Enigma 2.7 UnpackMe.rar

      • Like
    • 10 replies
    • 8.1k views
  19. Office Jesus
    KeygenMe · Started by Office Jesus,

    Hello, everyone! I hope the thread title caught your eye. I want to present my first keygenme in quite a while. This one is a departure from the past iterations. The main goal with this "series" (I plan to have more along this mantra) is to help ease novices and noobs into the art of reversing (patching, keygenning, etc.). I hope that you guys will solve this and provide tutorials. Hopefully, the tutorials will be spread around the Internet for all new people to enjoy and learn from. Features of this keygenme: Coded in MASM (with the aid of WinStudio) Packed with UPX Starting nag Ending nag Disabled textbox Disabled button No cryptos Somewhat frustrati…

      • Like
    • 13 replies
    • 8k views
  20. ghsafsdfsdhfghfgjhgkj
    KeygenMe · Started by ghsafsdfsdhfghfgjhgkj,

    A simple KeygenME {MD5} http://www.multiupload.com/6MG3JNKSCY http://www.mediafire.com/?bmqbwfc5gb78t98

    • 8 replies
    • 7.5k views
  21. Alfa-Romero
    UnPackMe · Started by Alfa-Romero,

    Hi if someone try this unpackme here is: UNpackmeEnigm.rar

    • 6 replies
    • 6.1k views
    torrescrack248
    torrescrack248
  22. AnTiCDLoCK
    UnPackMe · Started by AnTiCDLoCK,

    Hi, Please Unpack this and give a Diff level ? Then Make a tut. greetz. Edit : Sorry, Attached file Changed ! test5.rar

    • 5 replies
    • 5.7k views
  23. Saduff
    KeygenMe · Started by Saduff,

    Valid solutions are serial and stand-alone keygen. Hope you like it. Compiler : MASM32 SSE KGM #2.zip

      • Like
    • 10 replies
    • 6.2k views
  24. Saduff
    KeygenMe · Started by Saduff,

    I've never seen x64 KeygenMes before, so I thought why not write one. This is my first x64 code. I hope there are no bugs. I kept the algo fairly simple and wrote it in MASM. Rules: - No patching! - No bruteforcing in keygen! Since there aren't any great x64 debuggers available, please tell me what debugger you used to solve this, so I could get a small overview of what people use for debugging x64 code. In case you don't know what debugger to use, I'll give you a starting point. Consider using FDBG. It's also the debugger I used to test this KGM. Good Luck! KeygenMe x64.zip

    • 18 replies
    • 7.1k views
  25. tarequl.hassan
    KeygenMe · Started by tarequl.hassan,

    A keygenMe including a keygen. Now What to do? Yes Make your won keygen and send it to me tarequl.rar

    • 3 replies
    • 4.7k views

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