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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. Hyperlisk
    KeygenMe · Started by Hyperlisk,

    Well, I been experimenting with writing a little pet VM, just for fun, and I plan on releasing little KeygenMe's as I add new features. Right now it supports quite a few op codes, though not all of them are used in this algo. The EXE is not compressed or protected and it was compiled without optimizations, so it's just straight reversing. I kept the algo simple so that the focus is mainly on actual reversing and figuring out how my VM works. If there's any problems with it, let me know, thanks! Well, have fun! And here's an example key: Name: Hyperlisk Serial: 1C3A-FE0A VM.zip

    • 11 replies
    • 5.3k views
  2. rendari
    CrackMe · Started by rendari,

    Hello all, I stumbled upon this antidebug trick on my 64 bit windows 7. I now want to see if it works in 32 bit on any other OS. Can you guys please download and run this exe in and out of a debugger and tell me if it detects your or not? I would like to see if this antidebug trick is platform specific or not Thanks! -rendariAntidebug_Test.zip

    Peter Ferrie
    Peter Ferrie
  3. KKR_WE_RULE
    KeygenMe · Started by KKR_WE_RULE,

    This is a keygen me I wrote for my team (RED CReW). Thought of sharing it with every here.. The rules : KEYGEN is the only soln. No patching is allowed. A tut on it would be gr8 Download KGM2.rar http://www.multiupload.com/VPE0JDTC5K For some odd reason I cant attach any files !!! Hope posting a link is not against any rules

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

    here is a crackMe NoobyPrt+Res PCked Execryptor I hope this doesnt have the slow run issue Test it

    • 24 replies
    • 11.6k views
  5. jensma
    KeygenMe · Started by jensma,

    Hi there! I'm just dropping another keygenme for you. This time, please make a keygen Have fun! jensma.de/keygenme_jensma_2.exe For everyone who encounters difficulties, here are some hints: The program searches for a file called "key.file". The serial isn't hardcoded. keygenme_jensma_2.zip

    • 6 replies
    • 4.8k views
  6. kobalt
    UnPackMe · Started by kobalt,

    This maybe too much easy for our very fast unpackers Enigma 1.68 HID Protected and Code Packed with Execryptor. CrackMe5.rar

    • 11 replies
    • 8.1k views
  7. kobalt
    UnPackMe · Started by kobalt,

    Hi I hope this CrackMe be a little more intersting: Packed VMP over a Themida KeyFile Protection Objetive: Run Without Key key included in the attach Some issues with AVs, but the file is absolutly clean (Same file used in my others crackmes) CraCkM.rar

    • 9 replies
    • 7k views
  8. GioTiN
    KeygenMe · Started by GioTiN,

    Under SEH Team Keygenme 11 LeVeL : 3/10 Rules : dont patch or serial fish it . Just make keygen! Keygenme.v11-UST.rar Mirrors : http://ustpre.zzl.org/kgme/Keygenme.v11-UST.rar http://stashbox.org/881536/Keygenme.v11-UST.rar Have A Good Day GioTiN ^ UST

    • 8 replies
    • 7.6k views
    Teddy Rogers
    Teddy Rogers
  9. kobalt
    UnPackMe · Started by kobalt,

    Hi This Crackme could be a nice one VMP v2 protected (no packed) ZPRTC v1.4 Packed **Aspack signature is not as a protection CrackMe.zp.vmp.rar

    • 7 replies
    • 7.2k views
    Teddy Rogers
    Teddy Rogers
  10. thisistest
    UnPackMe · Started by thisistest,

    Themida - Advanced Windows Software Protection System [Version 2.1.1.0] Protection Options for test2.exe -------------------------------- Macros Information ------------------ VM Macros: 0 CodeReplace Macros: 0 ENCRYPT Macros: 0 CLEAR Macros: 0 CHECK_PROTECTION Macros: 0 CHECK_CODE_INTEGRITY Macros: 0 CHECK_VIRTUAL_PC Macros: 0 Protection Options ------------------ Anti-Debugger: Advanced Anti-Dumpers: ENABLED Entry Point Ofuscation: ENABLED Resource Encryption: ENABLED VMWare compatible: ENABLED API-Wrapping Level: Level 2 Anti-Patching: File Patch (sign support) Metamorph Security: ENABLED Memory Guard: ENABLED When Debugger Found: Display Message Application compressi…

    • 6 replies
    • 11.2k views
  11. KKR_WE_RULE
    KeygenMe · Started by KKR_WE_RULE,

    This is a coded for fun. Enjoy it. Level : 3 (Getting Harder). *Hint* : Believe ya instincts Rule : Keygen Is the Only Soln Winners :1) qpt^j Download http://www.multiupload.com/SXD8VKC59Z Warning : Donot make ya self bald after genning this 1.. The reason why I said this will be clear after ya have genned it Regards KKR/RED/2010

    • 4 replies
    • 5.1k views
    KKR_WE_RULE
    KKR_WE_RULE
  12. FuJ!N
    CrackMe · Started by FuJ!N,

    Hello dear friends Please Just make loader for this App and if you like then write tut Info: code VB6(self defense code added) Protection: AsProtect 2.51 Protection Option: Resource Protection Anti Debug CheckSum Advanced Import Protection Emulate standard system function(new) Change OEP Expire: After 3 day or 10 Execution vol 350 KB Must be show good boy Message Good LucK Loader Me1.1.rar

    • 15 replies
    • 11.5k views
  13. CrackDJ
    KeygenMe · Started by CrackDJ,

    This is my first keygen me, this generates ramdom keys every run.. The rules : KEYGEN is the only solution. No patching is allowed. No Serial fish. **If possible** a short tut! Level: Hard Good luck guys KEYGEN_ME__CrackDJ.zip

    • 8 replies
    • 7.1k views
  14. thisistest
    KeygenMe · Started by thisistest,

    hi,my friend! If you can write Keygen you are strong! I made a tutorial />http://www.multiupload.com/RWQI4KGN1D pass:sndteam123 />http://www.multiupload.com/KW5L770F32 test file />http://www.multiupload.com/I4S9DFEX2L test vc-5 crack test vc.rar bt tutorials .rar

    • 2 replies
    • 6.5k views
  15. Sp1d3rZ
    CrackMe · Started by Sp1d3rZ,

    KeygenME or CrackME #1 Protection = Extreme Virtualization Method Rules = Provide Keygen, Crack, Patch, Serial, etc.. Needed = How you did it? File Attached: Keygen ME or Crack ME #1.rar

    • 11 replies
    • 5.7k views
  16. Teddy Rogers
    UnPackMe · Started by Teddy Rogers,

    Themida 1.9.1.0 http://tuts4you.com/download.php?view.1780 Ted.

    • 20 replies
    • 11.9k views
  17. thisistest
    UnPackMe · Started by thisistest,

    test it EncryptPE V2.2008.6.18 EncryptPE V2.2008.6.18 S.rar

    • 6 replies
    • 7.4k views
  18. Ownage
    CrackMe · Started by Ownage,

    On with level 4.Harder , user and serial.g4.rar

    • 10 replies
    • 8.5k views
  19. thisistest
    UnPackMe · Started by thisistest,

    Welcome to test it test.rar Project2.rar

    • 3 replies
    • 6.3k views
    NullPointerException
    NullPointerException
  20. Nieylana
    CrackMe · Started by Nieylana,

    here is a link to my latest crackme, again written in Visual Basic 6 using a custom protector i've written specialized for any VB6 application. Protected.rar The goal is simple... get the good boy message by entering the correct serial... A note of warning, if u manage to find a valid serial do NOT post or share it anywhere as it will stop working if a share is detected. Simply PM me here or at ARTeam with the serial you've found/made and i will verify A couple things to note: Avira detects it but it's not a virus... contains simply 3 calls to a msgbox and the call to the verification routine and must be allowed thru your firewall for the server check To further sh…

    • 1 reply
    • 4.6k views
  21. thisistest
    UnPackMe · Started by thisistest,

    Intensity is greater than the Themida1.9 file http://www.multiupload.com/7068XQ4RLT unpackme.rar

    • 4 replies
    • 10.7k views
  22. thisistest
    UnPackMe · Started by thisistest,

    Private exe Protector V3.07 All protection options, please test it! Good music stand http://www.multiupload.com/AOIBCFB7I3 test1.rar test2.rar stand lrc.rar

  23. KKR_WE_RULE
    KeygenMe · Started by KKR_WE_RULE,

    Hello to all. My first kgme is this board. All the code in this lil thing belongs to me Have fun genning it Rules :- Keygen is the only valid soln Winners are :- 1) HVC KGM2.rar

      • Like
    • 4 replies
    • 9.3k views
  24. VESA
    KeygenMe · Started by VESA,

    Hey, here is my 8th KeygenMe... Protection: Custom (Easy-Medium) Rules: Just no patching! Regards, VESA Edit: Attachment updated... KGM8_VESA.rar

    • 3 replies
    • 4.6k views
  25. HSN.C3r
    UnPackMe · Started by HSN.C3r,

    features: -packer section is obfuscated -"code" section is protected -No OEP obfuscate -imports redirected -compatible with Win XP sp2,sp3 .(may not work on vista and win7) level: medium ----- (please vote) unpackme.rar

      • Like
    • 4 replies
    • 5.8k views

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