Challenge of Reverse Engineering

it uses Qt5.4 GUI. the key validation algorithm is not difficult to analyze. but this Keygenme uses a lot of classes and templates which would be a great challenge for reverse engineering. have fun! OOKeyGenMe.7z

Virustotal https://www.virustotal.com/th/file/5c304ca415e9136a578eef150d70c35a2514e99dc42cc2ee96ed0b0c588f74a9/analysis/1424582697/ CrackMe.rar

This is a simple keygenme designed to show a new feature in C# 6.0 (VS2015): catch-when exception filters. It's a part of my blog post. .NET Framework version: 2.0 Obfuscation: none, written in pure C# Difficulty: 2/10, should not take more than 30 minutes for a skilled reverser; Rules: #1 - It's a keygenme, so valid solution is a keygen (or valid username/pass, if you're really lazy). #2 - Please, please spend few minutes describing how you solved it. It will help everyone else to learn. #3 - Don't waste your time patching few bytes - you will not learn anything that way. #4 - Have fun! Cheers, kao. CatchMeWhen.zip

The objective is to unpack and crack this application and make it rune whithout error. Crack me_enigma.rar

[unPackMe] Simple .NET Unpack Me Protected with a private version of my .NET protector. If you can unpack write a tutorial!

Hi tuts4you, I don't want tutorial on how to unpack, i can do it. https://mega.co.nz/#!854wCAJT!i8iMxW6J2WofXmsgLzZM00omE4ngNjLb7yrf6GesMDw I wish you guys luck.

Virus total : https://www.virustotal.com/th/file/2f529bfcbbb03833a341979880899c4313f673b1b91cbbaa5f637fce346166b0/analysis/1427647103/ Good Luck Protected.rar

Hello everybody Here's a challenge for you.This file is packed and crypted ! Good luck ! Simple UnpackMe By Ben Mhenni.rar

The objective is to unpack the program completely ! List of people who have managed this challenge: - - - - UnpackMe.rar

Good luck! Tested running on Windows XP3 Smoke_UnpackMe.rar

[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

Good luck UnpackMe.rar

CrackMe.rar

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

Protection setting is described in the readme. Enigma400Unpackme.rar

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

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

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

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

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/

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. …

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

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

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

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