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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. Smoke
    UnPackMe (.NET) · Started by Smoke,

    Good luck! Tested running on Windows XP3 Smoke_UnpackMe.rar

    • 3 replies
    • 10.4k views
  2. madskillz
    UnPackMe (.NET) · Started by madskillz,

    [unPackMe] Packed with ConfuserEX 0.4.0 compiled as on 14-01-2015 from github source. Only Compression Packer setting is used. Please write a tutorial on manually unpacking it. Thank you Unpackme_ConfuserEXonlyCompression.zip

      • Like
    • 28 replies
    • 22.7k views
  3. CodeEnding
    UnPackMe (.NET) · Started by CodeEnding,

    Good luck UnpackMe.rar

    • 1 reply
    • 6.9k views
  4. Mishar

    CrackMe.rar

    • 0 replies
    • 8.9k views
  5. NCK
    UnPackMe (.NET) · Started by NCK,

    Hi,guys! This is my second UnPackMe ! The last UnPackMe was broken by je9rry and CodeCracker ! I feel so sad , but this one is more difficult ! Have a try,please! You need to do: UnPack me and normal operation ! UnPackMe.rar

      • Like
    • 4 replies
    • 10.5k views
  6. Softgate
    UnPackMe · Started by Softgate,

    Protection setting is described in the readme. Enigma400Unpackme.rar

      • Like
    • 13 replies
    • 19.9k views
  7. converse

    UnpackMe Enigma 4.10 (maximum protection) + registration dialog (HWID) UnpackMe Enigma 4.10 (maximum protection).rar UnpackMe Enigma 4.10 (maximum protection+HWID).rar

  8. Arting
    UnPackMe · Started by Arting,

    This target is protected with Themida 2.3.1.0 Virtualize Protection Core With: TIGER32 (Black) Good luck! UnpackMe Themida 2.3.1.0.rar

      • Like
    • 5 replies
    • 9.7k views
  9. MindSystem
    UnPackMe (.NET) · Started by MindSystem,

    Hello, here's a challenge for you You have to unpack the file who is obfuscated with ben mhenni protector Virus scan : https://www.virustotal.com/fr/file/5270166dc926b1f484f82ffdec895f1822fbf552044c6f9e36fe6b1ad85db1a8/analysis/1425211389/ Good Luck ! File is attached to the topic CrackMe.rar

      • Like
    • 11 replies
    • 13.6k views
  10. MindSystem
    UnPackMe (.NET) · Started by MindSystem,

    Hello, here's a small challenge for you The file is obfuscated with .net reactor 4.9 with all option if you unpack it, please write a tutorial http://www18.zippyshare.com/v/17695329/file.html

      • Like
    • 8 replies
    • 12.2k views
  11. Xons5454
    CrackMe · Started by Xons5454,

    It has a modded confuser + de lastest version of crypto i've tried a lot and i cannot. I'll see if you can Download link: https://mega.co.nz/#!OQYiFYZZ!JZxpNos9lskhW8--n_Up4ZAwcmcaTPOko1ffpQJBXYo Virusscan: https://www.virustotal.com/es/file/f22a4f0cc00fa4625deb00164be9a86d092ed6933b86d05e9ddf08d3d2e074c5/analysis/1401740447/

      • Like
    • 3 replies
    • 6.8k views
  12. v0k3

    Hello reversers, my name is V0K3 and I'm new in this wonderful community! Today I will post a project done by Lollo90 (and me) for the new entries of the .NET reversing. This is a pack (probably later there will be more than one) of 10 NET fixmes, the only things you have to do is fixing their MetaData and then change the text of the textbox with both Reflector and SimpleAssemblyExplorer. Is preferred to do it manually so you can write a little tutorial / document on how to fix that specific MetaData. I know that this won't be hard for you, anyway it can be interesting for the new (.NET) crackers that doesn't know how to deal with MetaData errors. …

      • Like
    • 19 replies
    • 13.3k views
  13. zelda
    UnPackMe · Started by zelda,

    Hello unpackme: Safe engine Shielden v2.3.0.0 full protection activated packed notepad.exe windows7 32/64bit good luck notepad_se.rar

    • 3 replies
    • 13.7k views
  14. CodeEnding
    UnPackMe (.NET) · Started by CodeEnding,

    Good luck %&$&#%@#.rar

    • 1 reply
    • 11.8k views
  15. 0xFFFF
    UnPackMe (.NET) · Started by 0xFFFF,

    Good luck! Find out correct combination of Username/Pass/Serial CrackMe_Latest.zip

    • 1 reply
    • 11.7k views
  16. sa38154
    CrackMe · Started by sa38154,

    Hello, Please Testing, Simple exe and Program protected now.. and CrackMe this Good luck __CrackMe__.rar

      • Like
    • 15 replies
    • 10.3k views
  17. NightBaron
    CrackMe · Started by NightBaron,

    Good Luck Virus Total https://www.virustotal.com/th/file/825763b7d96f64b384a226fc8f5a8b20b099322cdd5f9996f6eb189a2aba9d2b/analysis/1423996040/ and thanks if you tutorial how to unpack CrackMe.rar

    • 3 replies
    • 7.3k views
  18. patchaya

    CrackMe+UnpackMe UPCRKMEProtected.rar

    • 5 replies
    • 7.7k views
  19. patchaya
    UnPackMe (.NET) · Started by patchaya,

    I would like to know about how to unpack ? thank you very much UnpackMe_DotNetPatcher.rar

      • Like
    • 3 replies
    • 8.8k views
  20. xSRTsect
    KeygenMe · Started by xSRTsect,

    A very basic crackme I coded a few days ago, the purpose is to get yourself acquainted with the x64 intrinsics. Rules are basic too just fully reverse the damn thing and the first 2 people will get the crackmes source code. Happy Reversing EDIT: The second attachment contains the crackme with the MSVC libraries linked statically. Available Sources For GiveAway: 1 Exodia and Kao solved this little toy AMD_64_1.rar AMD_64.zip

      • Like
    • 3 replies
    • 6.6k views
  21. 0xFFFF
    CrackMe · Started by 0xFFFF,

    Hello, this is my first CrackMe, but I think is very hard because I haven't seen this method yet. Sorry for 2mb file, but linking is very much size. There is a function which returns true/false for Login, patch it to true and you did it. Might be super easy or super hard, idk! Good luck CrackMe.zip

      • Like
    • 4 replies
    • 5.9k views
  22. NightBaron
    CrackMe · Started by NightBaron,

    Protection : ConfuserEx + Mpress + Hex Editor ** program can't start ** ** you must edit hex for make program can running ** Good Luck i don't know why virustotal show has trojan , it not has trojan ** Sorry , i'm not good English Language ** Virus Total :: https://www.virustotal.com/en/file/8b8062899560e7a81c64d74030096b01d039b40efa258fcd8b5270ee9d0b7ede/analysis/1422087515/ Protection.rar

      • Like
    • 6 replies
    • 10k views
  23. Office Jesus
    KeygenMe · Started by Office Jesus,

    Hello, everyone!I want to present the next entry in my "Fun" series. This time it's a bit of crypto!Features of this keygenme: Coded (poorly) in MASM Not packed Not for beginners? Difficulty: 2-3/10 I hope you guys solve this and post tutorials (text, flash, anything) in this thread! As always, I fully expect ChOoKi to solve this within five minutes of downloading. I also expect him to half-ass his way through a tutorial and then not post it. Good luck, everyone! I look forward to your solutions! If you find any bugs, please report them so I can fix them.Cheers, Office Jesus fkgm2.zip Solutions Ragdog DimitarSerg ChOoKi

      • Like
    • 19 replies
    • 9.4k views
  24. DragonX
    UnPackMe (.NET) · Started by DragonX,

    [unPackMe] Dotwall Obfuscator obufuscated file Protected with Dotwall Obfuscator 17.0.0 demo version If you can unpack it please write a tutorial! Thank you~~~ DotWallCrackMe.rar

      • Like
    • 8 replies
    • 9.3k views
  25. estelle
    UnPackMe · Started by estelle,

    FB8E-8ADA-5D2A-AC99 dvXCUjbJ5xgJbD+tjBctev6OANL/pp9j3mmg7Vjc E/PuQa5do6Lmf8dYnU5bN0M/Bj0rrBuQ1NsBIqi9 PWPRz3BeRVmWTjgncHB+JZcAEV8sxMil sex.zp.rar

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