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Challenge of Reverse Engineering

Try a challenge or contribute your own, any platform or operating system...

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  1. gholam.illidan
    UnPackMe (.NET) · Started by gholam.illidan,

    Difficulty : 8/10 Language : C# Platform : Windows OS Version : All (Requires .net 4.0) Packer / Protector : ConfuserEx Modified by Myself / EnigmaProtector 3.10 Description : Unpack the file, get the string code, clean resources and keep the application working. and make a Short Tut for it. Screenshot : UnpackMe_protected.exe

  2. teehist
    UnPackMe (.NET) · Started by teehist,

    I made a simple program that has the packer "AgileNet" The challenge is to remove this protection and send the code of "MainForm" or "Form1" in his case. If you can meet the requirements below. What program used to unpacker? Level of difficulty? Scan 3/57: https://www.virustotal.com/pt/file/e6b3d3d176e72a5746c692f94749bd760ac46730ce7dcd04c0e62b3ab150bef4/analysis/1422818674/ Scan of file without AgileNet 0/57: https://www.virustotal.com/pt/file/45588b05ae940e7d321be6a8622a2d4555eca9f3e424d05e2107c65b80da9fba/analysis/1422818773/ I believe that the virus scan with the accused AgileNet is caused by the very packer. Please read, Viruses accused really …

      • Like
    • 10 replies
    • 10.9k views
  3. HMX0101
    KeygenMe · Started by HMX0101,

    Alive Just another crypto keygenme and delphi ****. Only valid solution is a keygen. Luck, HMX0101 // 10-04-2011 alivekgme-hmx.rar

      • Like
    • 17 replies
    • 13.8k views
    SmilingWolf
    SmilingWolf
  4. Reasen
    CrackMe · Started by Reasen,

    Difficulty : above 5 Language : Delphi XE8 Platform : Windows x86/x64 OS Version : XP and above Packer / Protector : None Description : Improved version of my previous CrackMe, LostIt resolved the CrackMe adding a new section in the executable that redirects the address from where bytes of the functions are read to be able to edit the original function, now for creating the itself-key for decrypting those 2 variables (cracked or not cracked), is needed the pointer address from where it comes, also the function from where checks itself are itself checked to make the key, so his method is no longer valid, good luck to all and have fun! The objetive of this Cr…

      • Like
    • 7 replies
    • 8.6k views
  5. bomblader
    UnPackMe · Started by bomblader,

    Here you go... have fun! You can use it like this: name.pyc <password> dec.rar

      • Like
    • 14 replies
    • 16.1k views
    Extreme Coders
    Extreme Coders
  6. skypeaful
    KeygenMe · Started by skypeaful,

    Difficulty : You rank Language : .NET Platform : Windows OS Version : All Packer / Protector : SmartAssembly + Sixxpack Description : 1) A valid key for your HWID 2) A working keygen Good luck Screenshot : Keygenme_.rar

      • Like
    • 3 replies
    • 6.7k views
  7. Modify
    UnPackMe (.NET) · Started by Modify,

    Difficulty : 3 Language : .NET Platform : Windows OS Version : Windows 7 Packer / Protector : Ultra Multiple v1.0 Description : UnPack, crack Good Luck Screenshot : UnPackMe.7z

      • Like
    • 1 reply
    • 7.4k views
  8. Modify
    UnPackMe · Started by Modify,

    Difficulty : 3 Language : Borland Platform : Windows OS Version : Windows 7 Packer / Protector : Confuser, DNP Method Description : Hi, Don't trust public version packer finder. Good Luck thanks Screenshot : Demo.7z

      • Like
    • 8 replies
    • 7.8k views
  9. HAMID
    UnPackMe (.NET) · Started by HAMID,

    Difficulty : Very HardLanguage : .NETPlatform : Windows 32 bit OS Version : Windows 7Packer / Protector : Ben Mhenni Protector v5.0 Modified Description : Make a tutorial. Screenshot : UnpackMe - Ben Mhenni Protector v5.0.rar

  10. Modify
    UnPackMe (.NET) · Started by Modify,

    Difficulty : 3 Language : .NET Platform : Windows OS Version : Windows 7 Packer / Protector : Multiple 1.0 Description : 1. Unpack 2. Remove SHA256 file check 3. And crack get key Note : You click Activate button show error "Index was outside the bounds of the array, this is file check protection I'm change this file after show this error, Remove this error : unpack and remove SHA256 File Check Screenshot : UnPackMe.7z

      • Like
    • 7 replies
    • 12.1k views
  11. Modify
    UnPackMe · Started by Modify,

    Difficulty : 4 and up Language : Borland Platform : Windows x86 OS Version : Windows Xp and up Packer / Protector : Enigma 5.xx latest version Description : UnPackMe and CrackMe I'm not share full version protect, this is protect with demo with all advance options. Good Luck Thanks Screenshot : Demo.7z License.reg

      • Like
    • 1 reply
    • 16.9k views
  12. Jasi2169
    CrackMe · Started by Jasi2169,

    - Make It Registered - Provide tut How You Did It with crack.exe - No Rules Do Whatever You Want unpackncrack.rar

      • Like
    • 12 replies
    • 10.9k views
  13. Modify
    UnPackMe · Started by Modify,

    Difficulty : 1 Language : Borland Platform : Windows OS Version : Windows 7 Packer / Protector : Private Exe Protector 5.0.1.0 Demo Description : 1. Unpack and crack. 2. Remove nag please tell me. Screenshot : UnPackMe.7z

      • Like
    • 8 replies
    • 12.4k views
  14. Modify
    UnPackMe · Started by Modify,

    Difficulty : 3 I'm not decide Language : AutoIt3 Platform : Windows 32 bit OS Version : Windows 7 Packer / Protector : Unknown + modify Description : Don't patch. Welcome tutorial. Screenshot : UnPackMe.7z

      • Like
    • 1 reply
    • 14.7k views
  15. Modify
    UnPackMe · Started by Modify,

    Difficulty : 5 Language : Borland Platform : Windows OS Version : Windows 7 Packer / Protector : Themida 2.3.2.0, Enigma 3.80 Description : Simple modify section, import table Screenshot : UnPackMeDemo.7z

      • Like
    • 4 replies
    • 15.4k views
  16. cawk
    UnPackMe (.NET) · Started by cawk,

    Difficulty : 2/3 Language : C# Platform : Windows OS Version : All Packer / Protector : ConfuserEx/DNP Description : Unpack the file and keep the application working. The serial is easy to get - if you get it - well done though it is not the main objective of this unpackme. Screenshot : https://gyazo.com/6f8ece6347515a4c68846b6f55902821 CrackMe.rar

      • Like
    • 7 replies
    • 10.2k views
  17. Holy
    KeygenMe · Started by Holy,

    Difficulty : 5 Language : C++ Platform : Windows x86/x64 OS Version : Windows 7 Packer / Protector : Custom VM Description: Goals: Write a valid keygen for the target Screenshot : Guindous_potato_edition.zip

    • 3 replies
    • 5.1k views
  18. 0xNOP
    CrackMe · Started by 0xNOP,

    Difficulty : (6 1/2) Language : (C++Builder XE8) Platform : (Windows x86) OS Version : (Windows XP & Above) Packer / Protector : (Custom VM) Description : This is my second CrackMe, the first one being developed in PureBasic, which it has many cool shenanigans but moved onto C++ now to deliver a different taste Hopefully this will leave a mark when analyzing this CrackMe The idea of this crackme is to analyze the VM and understand how it works, it will ultimately take you to where you want to go. Objective : Patch to Good Boy or Fish the Serial. Wish you the best of luck Screenshot : League of the Extraordinary Pr…

      • Like
    • 6 replies
    • 7.9k views
  19. Modify
    UnPackMe (.NET) · Started by Modify,

    Difficulty : 1 Language : .NET Platform : Windows OS Version : Windows 7 Packer / Protector : Babel Obfuscator 8.3 Description : UnPackMe and crackme very easy. Screenshot : UnPackMe.7z

      • Like
    • 5 replies
    • 22.5k views
  20. GIV
    KeygenMe · Started by GIV,

    Difficulty : For the algo itself i guess that 1 is more than enough. The catch is to arrive at that code. Language : VB .NET 2010 Platform : Windows x32/x64 OS Version : XP and above Packer / Protector : Enigma and one .NET obfuscator (i let you discover - is not hard to see what). Description : There are 2 goals. 1. Unpack 2. Write a valid keygen for the target. In order to have a valid keygen you need to unpack and observe some variables and make small changes. I assure you this challenge is 100% solvable. Good luck! Screenshot : Keygenme 2016.rar

      • Like
    • 8 replies
    • 11.6k views
  21. Reasen
    CrackMe · Started by Reasen,

    Difficulty : 4 Language : Delphi XE8 Platform : Windows x86/x64 OS Version : XP and above Packer / Protector : None Description : I made my own CrackMe with a function to check opcodes by itself and i used it as the key to decrypt 2 variables, (cracked or not cracked), the objetive of this CrackMe is to get the good boy message and not the "mal-decrypted" one. Crackme.rar Screenshot :

      • Like
    • 2 replies
    • 10k views
  22. SHADOW_UA
    KeygenMe · Started by SHADOW_UA,

    Not a difficult one keygenme/crackme written in C#. Gold - write a keygen Silver - find a valid Name-Key Bronze - patch assembly and get Good boy message KeyGenME_SHADOW.rar

      • Like
    • 4 replies
    • 6.9k views
  23. cawk
    UnPackMe (.NET) · Started by cawk,

    try to crack this file make it say success also show the deobfuscated code CrackMe.exe

      • Like
    • 6 replies
    • 9.5k views
  24. HellSpider
    UnPackMe · Started by HellSpider,

    Hi. My DevirtualizeMe series continue with this entry. I have protected a simple file containing 18 keyboard initiated functions with different virtual machines using a full version of Themida 2.3.5.0 . The file does not have any extra protection as the idea of this challenge is to understand the virtual machines. Also non-virtual machine protection settings are kept to a minimum, meaning no antidebug, no API redirection etc. Basically only antidump is enabled on top of the virtual machines. All of the virtual machine code blocks are identical in sense of instructions. List of function initiators: q = FISH32 White w = FISH32 Red e = FISH32 Bla…

      • Like
    • 14 replies
    • 31.2k views
  25. danmz
    UnPackMe · Started by danmz,

    Detail : http://prntscr.com/9hav19 Good Luck Salam. CrackMe.rar

      • Like
    • 7 replies
    • 10.1k views

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