Challenge of Reverse Engineering

Nothing fancy with this Deob/CrackMe just as simple as it gets, find the correct Activation Key for the generated Serial Number Hope you guys have fun with this one https://mega.nz/#!Ct4TVbZA!GyLfm7WZW-7WKpL2rIzhNtoDz0-4dnNEdjTv39yJEZM Maximum Security Sample - 0x90.zip

Confuser custom + SmartAssemblie lastest Welcome challenge! Hope this file can make you feel interesting and please give me some feedback about how hard to unpack it. 1 = Too easy 2 = It's OK 3 = Hard (Need advanced skills) 4 = Really hard 5 = Unbeliveble Thanks for your time. UnpackMe1.zip

1. Crack it (so it accepts any password) 2. Find the password How difficult was it? (on a 1-10 scale) Protections used: you'll find out along the way. Have fun! hi.rar

Please upload your unpacked and cracked file. Crack Me Ben Mhenni Packer.rar

[unpackMe] Jar2Exe v2.1The purpose is unpacking. If you can unpack this write a tutorial. Jar2ExeUnpackMe.zip

Please upload unpacked and cracked file to do this challenge. Crack Me Ben Mhenni v2.rar

I think i fully unpacked why exe not running problem . can u make it solution where is problem its not unpacked with de4dot . its my own test_exe . dont know if it correct section . hopping for a solution the running problem . i traced it return in Agile_dotnet_Unpacked.zip

Hello! A stupid KeygenMe,and I hope it'll be of fun... screenshots： Download Link: CrackMe.rar You need to provide 2 Name/Codes to win the game a correct key was given: Name: YYPEgoto(% Code: WJUQNUKVORONMLKKLMNO Either Cracking or Keygening will be great! VC6 released, mfc library was not taken. Having fun! greetz (Reprinted frome LCG)

-Anti-Debugger Detection : Advanced (* Not Ultra, due to trial) -Anti-Dumpers : Yep -Entry Point Obfuscation : Yep -Resources Encryption : Yep -Advanced API-Wrapping : Level 1 (* Not Level 2, due to trial) -Anti-Patching : None (* Due to trial) -Metamorph Security : Yep -Memory Guard : Yep -Monitor Blockers : Yep -CodeReplace Technology : Disabled (* Not supported for .NET) -API Virtualization Level : 10 -Entry Point Virtualization : 100 -Multi Branch Technology : Disabled (* Due to trial) -Encrypt Application : Yep -.NET Assembly Protection : Yep -F@cked Filesize : Yep (*From 28kb to 604kb) -:X : Yep UnpackMe_Themida_1930.rar Good luck..

Nothing fancy for the app, is a concept to those builders people use in Malware/Server Generators, The Stub is currently missing but you can use literally anything as the Stub xD Just pick any executable, copy it to the builder directory and rename the file to "Stub.exe" it should work as expected. Simple DeObfuscateMe - AznObfuscator Custom (ConfuserEx) For me it's very difficult to deob, If you can do this, then you are all f!@# gods xD Tried everything: Dumping -> Leaves Crashing app, Tried Fixing it, Failed... Used CC tools, None worked. Using UnConfuserEx Seems to work, but leaves app crashing -> Tried Fixing and still crashes... …

He Friend's This First ( CrackMe ) Message For WIN ( GooooooD ) I Nedd Correct Serial Link Enjoy !!!!

ConfuserEx custom maximum advanced obfuscator + SmartAssemblie lastest Welcome challenge! Hope this file can make you feel interesting and please give me some feedback about how hard to unpack it. 1 = Too easy 2 = It's OK 3 = Hard (Need advanced skills) 4 = Really hard 5 = Unbeliveble Thanks for your time. UnpackMe1.zip

Ok, learning from my flaws/weaknesses from the previous version, I've come up with a more aggressive CrackMe, Hence the name (Enhanced) hopefully will give you a nice time to think out of it and see what it does or what it has Skill Level: Experienced Reverser Only~! (Even though it's easy) Objectives: Successfully Deob & Find the Password. DL Mirror: https://mega.nz/#!HooxwJQI!tSj_tQdUdItu0MZNbb_apbcVEJKRjYkMNA7IiYme6AU Scan: https://www.virustotal.com/en/file/a3e5999753f747e04b06955688f2c9157620d91574ec12768759b12cfe1ee57d/analysis/1441686353/ Protections: I've used many encryptions for this one, Many Obfuscations and Many …

Used: 1. RPX - 4 Passes 2. DeepSea Obfuscator - 3 Passes 3. ConfuserEx 0.5.0-Custom by Me - 1 Pass ---- Objectives: Successfully DeObfuscate the application then Find the Password. If you feel willingly, please write a tutolrial. SecuritySuite.zip

Updated 30/6 Inspired by HellSpider's topic i upload a simple unvirtualizeme protected with latest licensed Oreans Code Virtualizer, for research purposes. It supports 4 types of VMs, each can be "white" , "red" or "black" (small, bigger, biggest). Pressing buttons 1-4 will pop up 2 messageboxes. Source: int Func1(int a, int b, int c){ VIRTUALIZER_FISH_RED_START MessageBoxA(0, "Fish Red", "UnvirtualizeMe", 0); Sleep((a + b + c) % 1000); MessageBoxA(0, "Complexity 2/10 Speed 9/10 Size 260", "Fish Red", 0); return GetTickCount(); VIRTUALIZER_FISH_RED_END }void* Func2(int* a, int* b, int* c){ VIRTUALIZER_PUMA_BLACK_START MessageBoxA(0,…

Very simple Key Gen Me. Level : i don't know? thx 4 trying X-88 KeyGen Me #9.zip

I have finished my little login system and it would be awesome if you guys will be able to test it. I created it in a challenge-style. Find the secret! Good luck. Also, please tell me how hard it was on a 1-10 scale. (1 being the easiest, 10 hardest) Posting the method you used would also be great, so I can patch it. Thank you. aa.rar

Hello all.UnpackMe,Try it. Target： Can be compiled. Can be run. Good Luck EveryBody. My nickname is "Net7Cracker" ,Don't call me "381400744" plz. UnapckMe_www.unpack.cn_.rar

The objective is to deob and crack these files ! 2 CrackMe - Confuser.rar

Protect : Confuser + Dotfuscator + BOX Welcome challenge! unpackme.rar

Hello everybody! Today I would like to present you all an unpackme protected with the latest version of SoftwarePassport/Armadillo. This one is one of the most complete Armadillo unpackmes ever made, implementing almost everything Arma puts in the hands of the user ranging from the simple "Protect with password" to the nanomites, the code splices and everything in between. I have tried not to make it too easy for you all, just take a look at it The final goal is to manually unpack it, study it and show you have been able to read the first file you see when opening the password protected archive attached to this post (Mistery.7z). Enjoy! Unpackme.7z Mi…

To meet this challenge you must upload the file deobfuscated and cracked. CrackMe - Good Level.rar

Here is a KeygenMe written by a friend, He requested i should upload this as a challenge here. Here is it KEYGENME.rar

hey guys, as some of you may already know, I've been working on an obfuscator for quite a long time. https://www.disguiser.net/ There is still a lot of stuff to improve, but I' like to know, how long it takes an experienced reverser to code a Keygen for this. All features are present in normal mode, so I still have something harder in case this is too easy for you guys I'd rate it 6/10, let me know what you think PS. it might not be the best nor innovative, but its mine! if you find my hidden messages, you will get something from me (yeah, plural! and PM me for your small gift, once you found them) greetz li0nsar3c00l [RTN] Keygen…

Good Luck Virus Total : https://www.virustotal.com/th/file/e6dcf5004d43919b632ca5817fea7235a491fc82c2e76cc5a1d523a706dfbea0/analysis/1434856735/ *if password correct msgbox "เก่งจ้า : D" UnpackMe.rar