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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

A topic will then automagically be created and posted in these forums...

  1. Kurapica
    KeygenMe · Started by Kurapica,

    Hi this is a new challenge, It's not hard but it's good for those who like coding in .NET, will be a great fun for a cold winter night patching is forbidden, only a valid keygen is accepted Enjoy />http://www.4shared.com/file/WctnNsWI/challenge.html link fixed ...

    • 6 replies
    • 4.6k views
  2. fastfood
    UnPackMe · Started by fastfood,

    Hello buddies some guys can unpack the file packed by enigma protector 2.13 in attachment? thanks start.rar

    • 1 reply
    • 5.3k views
  3. beBoss™
    KeygenMe · Started by beBoss™,

    This is my first KeygenMe. It's very old project, but I never posted on the internet. So this is the moment Description: Not packed, no cryptos, no hashes, just a little math Language: Delphi Rules: 1. Keygenning is the ultimate goal 2. Self-Keygenning and Phishing are more than welcome 3. Tutorials and tips are welcome 4. No patching. yeah I think is not really for noobs, but it is really easy !!! I hope to see keygens, source codes (ofcourse if you are not stingy - "close-fisted") and tutorials. Download: Mediafire: http://www.mediafire.com/?wrsasbm6cf5ngs9 Multiupload: http://www.multiupload.com/190FWQ9IUB Attachment: beBoss - KeyGenMe #1.rar

    • 4 replies
    • 5.2k views
  4. golfinhu
    KeygenMe · Started by golfinhu,

    my first keygen-me here's it: thanks keygen-me.rar

    • 1 reply
    • 12.6k views
  5. HSN.C3r
    UnPackMe · Started by HSN.C3r,

    New features: + CRC is added + some improvement in obfuscation + some anti debug is added level: --- please vote unpackme.rar

      • Like
    • 30 replies
    • 14.3k views
  6. weahnn
    UnPackMe · Started by weahnn,

    Hello everybody ~ Forget the multinational, and different foreign country, the first two stickers were removed, but there are good people to answer the question ...... Shell will also update the shelling technology updates, take a look at these new edition of the shell will not make people uncomfortable it ? 桌面.7z

    • 1 reply
    • 5.2k views
  7. cooooldog
    CrackMe · Started by cooooldog,

    Notepad with strong anti-debugger protection. StongOD does not work. How to debug it? thanks notepad_se.rar

    • 10 replies
    • 12.4k views
  8. CodeExplorer
    UnPackMe · Started by CodeExplorer,

    Net Reactor 4.0 unpackme + solution: Net_Reactor_4.0_unpackme.zip />http://filemojo.com/downloads/Net-Reactor-4-0-unpackme-zip-0244783165052422.html />http://plunder.com/fbaec6abf3

    • 3 replies
    • 14.2k views
  9. Blue
    KeygenMe · Started by Blue,

    Solve The Official Team IREC keygen me, if this one is cracked Team will develop new keygen me. This is requested because Team wants to Make harder Keygen Me. Thanks Every One The Blue Indian Administrator Team IREC [ Indian Reverse Engineering Club ] />http://irec.isgreat.org/ KEYFIND.zip

  10. NewHitman
    KeygenMe · Started by NewHitman,

    It is time to reverse ,time to use your programming and reversing skills and to code a keygen for my seventh keygenme well I can't tell you if it is difficult or not since that depends to you Even if I didn't use any kind of encryptions or hashing.I was about to add some Anti-Debugging Tricks but I found that the KM will be come so boring. every solution is accepted Okay Do your best in order to solve it and make me proud of you. Best Regards NewHitman NHKM7.rar

    • 3 replies
    • 7k views
  11. 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
    • 6.9k views
  12. 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
    • 4.6k views
  13. 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

  14. 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
    • 8.4k views
  15. 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
    • 12.8k views
  16. thisistest
    UnPackMe · Started by thisistest,

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

    • 5 replies
    • 7.8k views
  17. 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
    • 8k views
  18. 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
    • 29.6k views
  19. thisistest
    UnPackMe · Started by thisistest,

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

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

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

    • 8 replies
    • 9.1k views
  21. burdoz
    UnPackMe · Started by burdoz,

    PC-Guard 5.0 UnpackMe Calc.rar

    • 12 replies
    • 12.9k views
  22. 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
    • 4k views
  23. Blue
    KeygenMe · Started by Blue,

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

      • Like
    • 9 replies
    • 7.9k views
  24. 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
    • 6k views
  25. 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
    • 46k views

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