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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. simple
    CrackMe · Started by simple,

    Ladies and gentleman - live from the CrackMe's Arena of tuts4you.com - welcome to the main event of the evening.In the blue corner, we have Rumble.rar wieghing in at 86.5 kb, consisting of a C kernel binary and a C++ user binary, unpacked, fighting out of the Windows XP/7/8 x86 OS.*crowd gos wild yeeeeaahhh wooo!!!!!*In the red corner, we have the contender, the master reversing underdog, with a history of infinite knockouts, fighting out of tuts4you.com - putting their flawless record on the line!*crowd boos boooooooooo* (jk )Alright, I want a clean fight, anything goes, first fighter to submit the other or make the program accept the correct serial wins the title/public…

      • Like
    • 12 replies
    • 6.3k views
  2. X-88
    KeygenMe · Started by X-88,

    I hope you try this, and post the results in the form Keygen / Serial Not Patch. Hi To: All Member Forum tuts4you.com X-88 Crack Me #7.zip

    • 5 replies
    • 11.5k views
  3. XorRanger
    KeygenMe · Started by XorRanger,

    Here is a KeygenME i put together today when i had some free time. I know some set of people will solve this under 5 minutes. RulesNo rules.Solutions A working keygen : Gold A Working Serial : SilverPatching : Bronze A Tutorial would be appreciated.Please Do Solve. ** Sorry about the Size. Edit : just Fixed the bug reported by xSRTsect, sorry about that and thanks xSRTsect for reporting. Edit2 : Fixed Another Bug (Hopefully the Last ) that made it impossible to get a valid key even through bruteforce). XorRanger's KeygenME #7 Fixed Final.zip Valid Solutions so Far Office Jesus xSRTsect

      • Like
    • 17 replies
    • 7.9k views
  4. despy
    CrackMe · Started by despy,

    exe no packed,dll is protected with vmp. press the crackMe button,it will show a Message. if the Msg show the same info every time,then game over. enjoy yourself! [update] it seems very hard to crack.now i have remove some codes. try again,have a good time! crackMe2.zip app.zip

      • Like
    • 4 replies
    • 6.5k views
  5. mudlord
    UnPackMe · Started by mudlord,

    for the newbs.... unpackme.rar

      • Like
    • 7 replies
    • 7.8k views
  6. CodeNatif
    UnPackMe (.NET) · Started by CodeNatif,

    The objective is to unpack the file, if you are not able to completely unpack this, unpack that you can and upload the file please. List of people who have managed this challenge completely: - - - - .NET UnpackMe Challenge v2.rar

      • Like
    • 11 replies
    • 7.4k views
  7. Pushad
    KeygenMe · Started by Pushad,

    This Sample Keygen Me Made Via Windev 9 i hope ther a tutorials for keygening WD9 Keygen.rar

  8. simple
    CrackMe · Started by simple,

    It's saturday night party time! Crack open your laptop and head to the dancefloor w/this latest challenge wooooo hoooooo yeaaahhhh!!Intro:The original project was done by a team who's coders I've learned a lot from and respect. When it gets broken I'll post the orig. credits + source + custom mods + toolsThere's some stupid stuff in there, not trying to be fancy/complicated. The original project was flagged by just about every AV, so I had to briefly change some things to drop the rates to 10/55.Despite false positives, there's nothing malicious about this, the code is easy to read - do confirm yourself. Once it gets cracked, in an hour or so, I have my own implement…

      • Like
    • 9 replies
    • 6.8k views
  9. NightKung
    UnPackMe (.NET) · Started by NightKung,

    Protect : Confuser 1.1 Express Edition CrackMe.rar

      • Like
    • 8 replies
    • 6.4k views
  10. HellSpider
    UnPackMe · Started by HellSpider,

    Hi. I made some UnpackMe styled executables protected by the latest demo version of CodeVirtualizer (2.0.8.0). Each executable contains one function virtualized by a different virtual machine setting. The different virtual machines used are: - FISH32 Black - TIGER32 Black - PUMA32 Black - SHARK32 Black The virtualized functions are very short, approximately 20 asm instructions. No other protections are used. The virtualized function will execute when F1 is pressed. codevirtualizer_2.0.8.0_demo_devirtualizeme.rar

  11. RDGMax
    UnPackMe · Started by RDGMax,

    Hello My Friends Here a basic unpackme cpl Screenshot: Download: www.rdgsoft.net/downloads/RDG.UnpackME.CPL.zip Thanks RDG.UnpackME.CPL.zip

      • Like
    • 3 replies
    • 7.7k views
  12. Gladiator
    UnPackMe · Started by Gladiator,

    Hi Please Unpack it and then crack it File Type: Enabled Options : Thx UnPackMe_CrackMe.rar

      • Like
    • 19 replies
    • 10.4k views
  13. CodeNatif
    CrackMe · Started by CodeNatif,

    You must crack and upload the file. Good luck to all. .NET CrackMe By CodeNatif.rar

      • Like
    • 7 replies
    • 9.3k views
  14. GIV
    CrackMe · Started by GIV,

    Here i wrote a serial-me after some years. The answer is more closer than you can imagine. Good luck! New Year Serial Me.7z

      • Like
    • 24 replies
    • 9.2k views
  15. Teddy Rogers
    UnPackMe · Started by Teddy Rogers,

    lARP64Pro 1.0.3 http://tuts4you.com/...d.php?view.2815 Ted. lARP64 Pro_Update.rar

      • Like
    • 56 replies
    • 33k views
  16. mdj
    CrackMe · Started by mdj,

    Hi all my dear bro please see this crackme and solved it Link http://www.mediafire...j1q2l2ji6tezfme

      • Like
    • 12 replies
    • 12.4k views
  17. Asian Dragon
    UnPackMe · Started by Asian Dragon,

    Scan by Detect It Easy 0.93 Crackme.rar

      • Like
    • 12 replies
    • 10.4k views
  18. CodeNatif
    UnPackMe (.NET) · Started by CodeNatif,

    You must unpack and upload the file. Tell me if you find that this protection is good or bad. Good luck to all. List of people who have managed this challenge completely: - - - - .NET UnpackMe.rar

      • Like
    • 8 replies
    • 8.3k views
  19. iChallengeYou
    UnPackMe · Started by iChallengeYou,

    This one should a little bit harder then the previous one. Still no xp support yet. Goodluck 1. Gold: SmilingWolf 2. Silver: GIV 3. Bronze: ... iChallengeYou UnpackMe #2.rar

      • Like
    • 6 replies
    • 11.2k views
  20. iChallengeYou
    UnPackMe · Started by iChallengeYou,

    Hello all, Are you alone too with Christmas like me? And don't know what to do, then i will challenge you all for a new competition. I created a unpackme with selfmade code, so none protector is used, all coded by me. The goal is to find the original entrypoint, or make a running dump. Goodluck and merry xmas 1. Gold: SHADOW785 2. Silver: SmilingWolf 3. Bronze: GIV Note: The unpackme doesn't run in winXP for a unkown reason. iChallengeYou UnpackMe #1.rar

      • Like
    • 17 replies
    • 10.9k views
  21. Gladiator
    UnPackMe · Started by Gladiator,

    Hi Please Unpack and write small tut Enabled Options : .Anti Debug and Anti Trace .Anti Dump .Stolen Resource Protected with Private Exe Protector 4.3.0 Full version Thanks UnpackMe.rar

      • Like
    • 13 replies
    • 8.7k views
  22. Koutedar
    UnPackMe (.NET) · Started by Koutedar,

    Is Protected with All option https://www.sendspace.com/file/osso8a

      • Like
    • 19 replies
    • 14k views
  23. gaiththewolf
    UnPackMe (.NET) · Started by gaiththewolf,

    Hi All ! I want to unpack ILprotector 2.0.14. I could not success with existing tool. Please how to unpack it. Guide me plz . http://www.gulfup.com/?eBpC2N UnpackMe ILProtect 2.0.14.rar

      • Like
    • 6 replies
    • 10.1k views
  24. CodeNatif
    UnPackMe (.NET) · Started by CodeNatif,

    You must post them unpacked file or find the right password ! List of people who have successfully met the challenges 1: -SHADOW785 -GIV - - - List of people who have successfully met the challenges 2 (very hard): -SHADOW785 -abcd - - - Very HardCodeNatif CrackMe2.rar CodeNatif CrackMe1.rar

      • Like
    • 4 replies
    • 7.4k views
  25. CodeNatif
    CrackMe · Started by CodeNatif,

    You must find the correct password or unpack and cracker the file, thank you for not displaying the correct password to let a chance at all. Failled: Cracked: List of people who have successfully met the challenges: -abcd - - - - CrackMe.rar

      • Like
    • 2 replies
    • 6.1k views

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