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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. LCF-AT
    UnPackMe · Started by LCF-AT,

    Hello, so today I have created & protected a new UnpackMe for you. I added also some detect stuff [easy level]. So it should run normal with [mouse double click] and also in a normal basic protected Olly. Have fun. greetz ENIGMA 2.05 UnpackMe.rar

    • 10 replies
    • 7.3k views
  2. Hyperlisk
    KeygenMe · Started by Hyperlisk,

    Dunno if anyone's seen anything like this before. If I share a serial though, it'll mostly spoil the fun, so have at it. I think this one will take a little detective work. EDIT: I might want to attach it...

      • Like
    • 3 replies
    • 6.3k views
  3. iamcracker
    KeygenMe · Started by iamcracker,

    You should find out the correct UserName and the RegCode.It's Very Easy for you .And It need .Net runtime SuperSerialMe.rar

    • 6 replies
    • 7.5k views
  4. T-rad
    KeygenMe · Started by T-rad,

    Hey all, This is my first and probably my only KeygenMe. I wrote for a friend who's into VB apps (I haven't written VB6 in years). It's an easy algo, I just tried to eliminate sting searches and compares to show there are others ways to get to the routine. For anyone who keygens VB apps this should be pretty simple. It's not protected & compiled in native code. Have fun. Let me know what ya think of it KeygenMe#1.rar

    • 3 replies
    • 4.6k views
  5. thisistest
    UnPackMe · Started by thisistest,

    hi,this is Zprotect 1.4.9.0 With key protection I put the project into the documents and registration documents to the unpackme file http://filebeam.com/aff2978f8e698239cbc57af512c42d60 Zprotect__1.4.9.0.rar

      • Like
    • 33 replies
    • 23.4k views
  6. h4sh3m
    KeygenMe · Started by h4sh3m,

    hi my friends it's an advanced KeygenMe that written in Adoube director. Try it. Download: />http://hashem20.persiangig.com/Learn/KeygenMe.rar

    • 1 reply
    • 4.1k views
  7. FuJ!N
    UnPackMe (.NET) · Started by FuJ!N,

    Hi please unpack it and write tut if it is possible ver :4.2 demo app:vb.net requirement: dotnet framework size:65 kb protection: almost all option thank you UnPackMe_Reactor4.2.rar

    • 1 reply
    • 10.5k views
  8. KKR_WE_RULE
    KeygenMe · Started by KKR_WE_RULE,

    After some coding for my team, I got an idea abt a type of protection. I did my best to implement it in here. Its not very hard, but you must understand the math involved in it Best OF LUCK Regards KKR Download the challange from attachment : TERMiNATOR.rar .:Solved By :. 1) Saduff

    • 10 replies
    • 8.2k views
  9. VESA
    KeygenMe · Started by VESA,

    Hey guys, This is too simple, so plz just make keygen... don't post any serial ! Cheerz KGM5.rar

    • 14 replies
    • 5.7k views
  10. KKR_WE_RULE
    KeygenMe · Started by KKR_WE_RULE,

    Rules : No patching. : No Bruting. Keygen is the only soln. This will be a tough nut to crack. Download VoLtAgE_KGM.rar />http://www.multiupload.com/GKJX1MO8AZ If ya r not a crypto geek, dont even bother.

      • Like
    • 21 replies
    • 9.2k views
  11. s3rh47
    KeygenMe · Started by s3rh47,

    Hi All My 2. KeygenMe is easy , but heads need to run ! such thing as mental game. If they have solved Serial, please write with HardWare ID or Make a Keygen !!! No Pack,No Criypto , coded in RadASM I wish so fun ! KeygenMe8 by s3rh47.zip Example (my Serial) HWID = 81DE-3E53 Name = s3rh47 Serial= 1889759833

    • 11 replies
    • 5k views
  12. s3rh47
    KeygenMe · Started by s3rh47,

    Hi All This My 1. KeygenMe in Tut4You Coded by Radasm ( special Thanx Ketil O. ) Do not uses Pack and Criypto. There are some FPU code. I will a Keygen or Serial for your Name ! I wish good luck ( Sorry Bad English ) If you take a Message "Tebrikler Basardiniz" Register Succes! KeygenMe-7.zip s3rh47 TCCT TEAM ( Turkish Code Cracker Team )

    • 10 replies
    • 7.6k views
  13. kobalt
    UnPackMe · Started by kobalt,

    I wonder if the EC HID Protection could be reinforced by noobyprt, well u can check it: Crackme9.zip

    • 3 replies
    • 6.5k views
  14. kobalt
    CrackMe · Started by kobalt,

    Hi This is my last experiment trying to combine VMP Protect i think . not very strong , but for some poeople could be funny CrackME8.zip

    • 3 replies
    • 7.9k views
  15. kobalt
    CrackMe · Started by kobalt,

    Hi Again testing with VMP combinations layers, this time with Execryptor HID Protection Check it and rate it CrackMe7.ECVM.zip

    • 7 replies
    • 7.6k views
  16. HSN.C3r
    UnPackMe · Started by HSN.C3r,

    Hi all. Protector option: Level: Maximum protection Virtual machine count: 1 Debugger detection: User mode + Kernel mode Write a tutorial ,If you unpacked it. Good Luck UnPackMe.rar

      • Like
    • 25 replies
    • 35.9k views
  17. kobalt
    CrackMe · Started by kobalt,

    I hope this time the crackme has integrated the two layers in a better way than my first attempt.. VMP over ZProtect HID have fun CrackMe2.zp.vmp.rar

    • 4 replies
    • 5k views
  18. 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
    • 5.2k views
  19. 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
  20. 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
    • 7.9k views
  21. 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
    • 11.5k views
  22. 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
    • 4.7k views
  23. 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
    • 7.9k views
  24. 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
    • 6.8k views
  25. 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

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