Challenge of Reverse Engineering

View File KoiVM Modified (Beds Protector 1.4.1) KoiVM is a virtualizing protector for .NET applications, as a plugin of ConfuserEx. ConfuserEx is a open-source protector for .NET applications. It is the successor of Confuser project. This file is protected with KoiVM using; MD5 Hash Check Constants Renamer Anti-Tamper I took KoiVM from https://github.com/BedTheGod/ConfuserEx-Mod-By-Bed (1.4.1) and modified it to make OldRod fail devirt. Submitter 0x72 Submitted 05/20/2020 Cate…

Seeing as a few people seem to be "anti Olly'ing" recently I thought this crackme from crackme.de may be of interest to a few people here. http://crackmes.de/users/magik/anti_olly_1.0/ Anti_Olly.zip Ted.

Language : C# Platform : Windows x32/x64 OS Version : All Packer / Protector : SatanMei Protector Description : Unpack and tell how fast did you unpack it and the way if possible. Screenshot : Unpack_Me.exe

Language : C++ Platform : Windows OS Version : Windows 7,8,8.1,10 Packer / Protector : Own Description : Enter correct key and you willl see the flag, and this is result. Post flag to spoiler with wirite up how you decoded it. CrackMe.exe

Language : VB.NET Platform : Windows OS Version : All Packer / Protector : NeosProtector 2.0 Description : Everyone Hello, I found new pack program. I used pack. Lets use unpack. Screenshot : Download: Unpackme.exe

Language : C/C++ Platform : Windows x32 OS Version : ( Windows 7,10) Packer / Protector : None Description : Goal : Find correct key. Enter key in textbox and click OK button then you see result . Screenshot : crackme_release.exe

Language: C# Platforms: Windows Protector/Obfuscator: Blinks Obfuscator V1.0.0 Description: Unpack the file! Virustotal: https://www.virustotal.com/gui/file-analysis/OGYzMjc3NzBjMzljMjk0YWEyNTA4NGI4NWQ2YzY3ZTM6MTU4NzkwODUyMw==/detection Download: AtomicProtectorNewestCrackMe.zip

Language : (C++) Platform : (Windows) OS Version : (Windows 7, 8, 10) Packer / Protector : (None) Description : Made my first crack me today. Does some stuff with math, will take a bit of thought. Goal: Find the correct flag. NO PATCHING. Screenshot : Download : FirstCrackMe!.exe

Language : VB.NET Platform : Windows OS Version : All Packer / Protector : MVMProtect 0.8.7 BETA Description : Hello everyone, if you see this, open the package I want from you! Screenshot : Unpack ME-OUT.rar

Language : .C Platform : Windows x32/x64 OS Version : Windows 7/8/10 Packer / Protector : None Description : Hey guys, I have built something very simple. It will take 1-2 minutes to crack it good luck; 1) Find the key. 2) Disable the key check. Screenshot : Download : Simple CrackMe by Rainbow.exe

Language: C++ Platform: Windows OS Version : Windows 7,8,8.1,10 Packer / Protector : None Virus Total :Scan result Enter correct password for getting flag Password Keeper.zip

Language : TASM / MASM / FASM - assembler Platform : Windows x32 OS Version : All versions of windows. Packer / Protector : N/A Description : A very simple crackme. You have to bypass the registration and get rid of the NAG on the program to make the program think it's valid. If you cannot crack it and would like a hint, click HINTS or run the patcher which will make the program registered once you run the patch. Screenshot : To download, download the zip and run Target.exe. The patcher will show it's a virus but don't worry it's not. It shows it's a bad program because of it being a hacktool, so please disable your AV or add it in exclusi…

Language : .NET Platform : Windows 32 bit OS Version : All Packer / Protector : "DARKSPROTECTOR 2.0 | PROTECT YOUR .NET APPS WITH THE BEST CONFUSEREX" Description: Unpack the file and say how Screenshot: DL: unpackme.exe

Language : .NET Platform : Windows [x32/x64] OS Version : Windows 10 Packer / Protector : ConfuserEX Custom Description : Packed by custom ConfuserEx. If you can, write how you unpacked it. Virustotal link. Screenshot : CrackMe.exe

Language : VB.NET Platform : Windows Packer/Obfuscator : DotNetPatcher (Modded By Me) Description : Unpack and crack the modded dotNet patcher and extract the username and serial. Show the success message. After unpacking and cracking the file should be able to run and execute. Thank you and best regards. Screenshot : Download : Be Patient With This File and Enjoy https://bayfiles.com/LbK058p9o2/CrackPlz_zip CrackPlz.zip

Language : C# Difficulty : idk Platform : Windows Packer/obfuscator : COrona_obfuscator Description : Want To see if the protections is good enough. Corona_Vm is basically SOme one modded KOIVM idk if its good so yeah ScreenSHot Spoiler VT :https://www.virustotal.com/gui/file/892dccbe1089f8b59827c1199f61cd40e8f74b9642b9965648d457dfd45fe425/detection DL : https://bayfiles.com/n8U0jdkbo9/ConsoleApp2_exe ConsoleApp2.zip

Language: C++ Platform: Windows OS Version: Windows 7,8,8.1,10 Packer / Protector : None Virus Total: Scan result secret_storage.exe

Language : C# Difficulty : Hard Platform : Windows Build : x86-x64 Packer/Obfuscator : SafeVM Description : I want to see how strong the protection is. Screenshot : Protected.rar

Language : C# Difficulty : Hard Platform : Windows Packer/Obfuscator : SafeVM Description : I want to see how strong the protection is. Screenshot : Protected.rar

GOOD LUCK UnpackMe & CrackMe .rar

Language : C++ Platform : Windows x64 OS Version : Windows 10 Packer / Protector : None Description : Find the password or call the verified function. Screenshot : CrackMe.exe

Difficulty : 7 Language : C#/C++ Platform : Windows OS Version : Windows 10 Packer / Protector : Appfuscator trial + ilprotector + themida on ilprotector dlls Description : Try to unpack this application. Screenshot : Download: UnpackMe.rar

Language : .NET Platform : Windows 32/64 bit OS Version : Tested on Win10 only, Win 7 and 8 also probably work Packer / Protector : Modded KoiVM and XXXX Level : 10/8 Description : Good luck everyone. Screenshot : Protected.rar

Language : C# .Net Platform : Windows x32/x64 OS Version : All Packer / Protector : KoiVM and Enigma Description : U N P A C K M E Screenshot: Crack ME.exe

PATCH IS NOT AN ACCEPTABLE SOLUTION. PATCH IS NOT AN ACCEPTABLE SOLUTION. PATCH IS NOT AN ACCEPTABLE SOLUTION. Difficulty : 5/10 (Professional problem to solve) Language : .NET Platform : Windows OS Version : All Protection : Custom VM + some crypto. Description : Learn something new today! If you already know how to deal with simple Virtual Machines, hopefully the crypto will keep you busy for a while.. However, it's designed to be broken, so better get cracking! Goals : Bronze medal: devirtualize the code. To claim the prize, you must provide human-understandable serial checking code that works exactly the same as original. Short …