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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. Guest unpackfan
    UnPackMe · Started by Guest unpackfan,

    Hi guys, Seeing as there is not much resource regarding .NET Reactor lets see if you can unpack this. De-Obfuscation is not necessary. Enjoy netrbinary1.rar

    • 0 replies
    • 6.8k views
  2. VESA
    KeygenMe · Started by VESA,

    Hy guys, Here is another simple keygen me! Valid solutions: 1. Keygen 2. SelfKeygen 3. Serial Good luck! Simple KGM 2.rar

      • Like
    • 5 replies
    • 4.4k views
  3. wgz0001
    UnPackMe · Started by wgz0001,

    Shielden unpackme . only game. free virsion . For details, please visit official website (http://www.safengine.com) (not AD) good luck. wgz0001.rar

  4. Teddy Rogers
    KeygenMe · Started by Teddy Rogers,

    Your task is to retrieve data from a special application. Answer has to be sent to contest@eset.sk. Prize and glory awaits so test your self and collect the prize! ESET Crackme Contest Rules: Contest Participants All participants of CONFidence conference held November 29 – 30, 2010 in Prague can enter the contest. No ESET employees will be admitted to participate. Contest Organizers ESET, spol. s r.o. has the right to organize the contest as part of CONFidence conference, held November 29. – 30, 2010 in Prague based on agreement between the foundation Fundacja Wspierania Edukacji Informatycznej PROIDEA and ESET, spol. s r.o.. Contest Objective “ESET crackme” is a program …

    • 3 replies
    • 8.2k views
  5. JesusSpork
    CrackMe · Started by JesusSpork,

    PM me your cracked copy and the congratulations message. Requirements: Crack this to show the congratulations message and still run afterwards. No delay signing note: Downloads http://thebotnet.com/api/post.php as a simple web-auth... ___Crackme 2.1.rar

    • 4 replies
    • 12.6k views
  6. thisistest
    UnPackMe · Started by thisistest,

    test it! try patch hwid,unpacked it! test2.rar

    • 5 replies
    • 7.6k views
  7. r0ket
    UnPackMe · Started by r0ket,

    Im currently developing my protector, here is an unpackme that is using vm. Consists in EP and Payload virtualization. Edit: Easiest task was completed - VM code at EP was solved by copying initialization code from other Delphi app (HSN.C3r). The hardest one solved - our hero is (LCF-AT)

      • Like
    • 8 replies
    • 7.9k views
  8. davis7
    UnPackMe · Started by davis7,

    Safengine Licensor v1.7.2.0 Maximum protection + no SDK used The first run it may be wrong. please run again once. Local Download or />http://plunder.com/7ab6bade55 UnpackME_SL.rar

    • 19 replies
    • 29.3k views
  9. thisistest
    UnPackMe · Started by thisistest,

    update VMProtect test! welcome test it! test1.vmp.rar notepad.vmp.rar test2.vmp.rar

    • 9 replies
    • 9.8k views
  10. thisistest
    UnPackMe · Started by thisistest,

    welcome to test it! enigma sdk.rar ASProtect 2.5 sdk.rar ASProtect .rar

    • 8 replies
    • 8.9k views
  11. burdoz
    UnPackMe · Started by burdoz,

    PC-Guard 5.0 UnpackMe Calc.rar

    • 12 replies
    • 12.6k views
  12. ScriptKiddy
    KeygenMe · Started by ScriptKiddy,

    http://crackmes.de/users/the_binary_auditor/the_binary_auditor_splish_1/ There are solutions but none of them really explained how they mathematically did it. It is suppose to satisfy the following condition: serial=username+10*7 But why? Can someone explain it in more detail using the hashes formulas? Sorry for being nub Also, why is 7 used? I am doing a level 1 or 2 keygen on crackmes.de that has already been solved. However, I do not want to look at the solution because I will be cheating myself and I would not have learned anything. Here is what the keygen basically does: Create hash of username: int v = 0; do { v = ( i ^ username[i] % 10 ) + 2; if( (_BYTE)v &g…

    • 0 replies
    • 3.8k views
  13. Blue
    KeygenMe · Started by Blue,

    Now I am enough to solve it... Thanks all tsrh.team.trial.keygenme.1.zip

      • Like
    • 9 replies
    • 7.7k views
  14. s3rh47
    KeygenMe · Started by s3rh47,

    Hi all this is my 3. KeygenMe I will a Keygen No Criypto and not Packed. coded in RadASM If your intelligence is good ! Simple for Serial find ! If you follow if is little difficult ! I Lock to Your ! (Sorry Bad English !) Download KeygenMe 3 by s3rh47.zip

    • 11 replies
    • 5.9k views
  15. Sp1d3rZ
    UnPackMe · Started by Sp1d3rZ,

    Themida v2.0.3.0 - UnpackMe Protection Level = V.HARD I give u Protection Details for making ur unpack easy ==Protection Options== Anti-Debugger Detection = Ultra Advanced API-Wrapping = Level2 Anti Dumpers = Enable Anti- Patching = File Patch (Sign Support) Entry Point Obfuscation = Enable Metamorph Security = Enable Resource Encryption = Enable Memory Guard = Enable VMWare/Virtual PC = Compatible Compression = App/Res/Secure Monitor Blockers = File Monitors/Registry Monitors Delphi/BCB Form = Enable When Debugger Found = Exit Silently Code Replace = Enable ==Advanced Option== Encrypt App = Enable .NET ASM = Enable Hide from PE = Type2 When U DID I…

    • 65 replies
    • 45.3k views
  16. vptrlx
    CrackMe · Started by vptrlx,

    Not an easy crackme, the code is made of the 5-year-old-part, 2-year-old-part and a recently-added-part, i hope you'll like it. The best solution would be the name/key pair, but i can set no restrictions, as it is in real life. (Simply redirecting the wrong key proc to the right key proc is like writing your own code, so it is disallowed:)) And, this one wants a lot of your resources, so you better don't try to solve it while running something else /*I guess, that with everything closed it must be ok everywhere - it worked correct even on the old 633Mhz Celeron. Algorithm can be understood anyway*/ So, as it is said, close all other programs and crack it! Good luck…

    • 7 replies
    • 5.3k views
    cdwayne foremost
    cdwayne foremost
  17. MIB
    CrackMe · Started by MIB,

    Find the password for the user admin .Have fun. Crackme1t1.rar

      • Like
    • 12 replies
    • 6k views
    cdwayne foremost
    cdwayne foremost
  18. jensma
    KeygenMe · Started by jensma,

    Hi! I just stumbled on forum =) Try to keygen/crack the attachment. This shoudln't be a hard task for you. develop keygen -> medium just cracking -> easy keygenme_jensma.zip />http://jensma.de/keygenme_jensma.exe Mirror: />http://www.npshare.de/files/c6c5db88/keygenme_jensma.exe Have fun =)

    • 4 replies
    • 4.4k views
    cdwayne foremost
    cdwayne foremost
  19. kaloom
    CrackMe · Started by kaloom,

    Lets see who can crack it :-) Download: http://www.mediafire.com/download.php?wivddjmnnzn tip: Protected with {SmartAssembly} Regards KaL Crackme.rar

    • 9 replies
    • 6k views
    cdwayne foremost
    cdwayne foremost
  20. Guest unpackfan
    UnPackMe · Started by Guest unpackfan,

    Hi guys, This is a device driver compiled for 32 bit systems and incorporates virtualized instructions, encrypted strings, and every other common protection routine provided by VMProtect 2. The unpacked driver must be fully loadable and viewable with tools such as IDA. This is not your run of the mill unpack, and if you require more information just post here. I had to upload to my box.net account, hope this is ok; />http://www.box.net/shared/x17h8v0nzv

    • 2 replies
    • 8.1k views
  21. thisistest
    UnPackMe · Started by thisistest,

    welcome my friend! test it! TTProtect .rar

    • 3 replies
    • 12.9k views
  22. thisistest
    UnPackMe · Started by thisistest,

    Enigma Protector 1.91 update again! Welcome to test! test1.rar test2.rar test3.rar

      • Like
    • 24 replies
    • 20.4k views
  23. Gladiator
    UnPackMe · Started by Gladiator,

    Hello Dear Masters Here we have a new version of hefaz protector with a little more security. In the UnpackMe we have .... 1.Advanced Nanomits 2.Code Redirection 3.Ultra AntiDebug 4.Better Speed ; than version 1.8.0 5.Fixed Crashes problem ( have seen in 1.8 UnpackMe ). 6.There is no additional protectors like VMProtector or ... Please Unpack it and write a tut. Download it from here.... http://www.4shared.com/file/2pwKhbEm/UnpackMe.html Best Regards. Thanks.

      • Like
    • 18 replies
    • 10.3k views
  24. Gladiator
    UnPackMe · Started by Gladiator,

    Hello all masters. Here we have an unpackme file that was protected with Hefaz Protector 1.8.0 ( Hefaz is a persian Protector ) , I have enabled all standard option to protect test file with std option ( no more difficulty ), please try to unpack it. Thanks. Best Regards. Note:The main application was protected with VMProtect.

      • Like
    • 15 replies
    • 6.6k views
  25. NewEraCracker
    KeygenMe · Started by NewEraCracker,

    Download & Extract Run it using java java.exe keygenme Try keygenning this if you can. I'll give source later keygenme.rar

    • 2 replies
    • 6.6k views

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