Challenge of Reverse Engineering

as we continue our journey from v1.1 into v1.2 a few improvements have been made.. thanks go out to NOP, GIV and by_mmb for spending their time on v1.1 here's a new challenge and good luck on this new version.. KeyGenMe.rar

Hello Please Unpack attached file and may write tut ( none Persian users ! ) Hint : This file was packed with VMProtector 2.13 with some tricks that maybe make it harder to fully unpack but i don't know how much is it Reliable and successful so please unpack it to see i got successes or not Thanks. UnpackMe.rar

Hi, Another keygenme, therefore called keygenme2. This time with a bit of crypto. Packed with : confuser. Unpacked the keygenme shouldn't be too hard for the bit experienced keygenners. Crypto, level 2. Kept simple! Here is the keygenme in winrar for you all: keygenme2 .rar

Hi everyoneThis is my new keygenme Download: http://uppit.com/ic08u0pihvsb/jjkeyv04.zip'>>http://uppit.com/ic08u0pihvsb/jjkeyv04.zip jjkeyv04.zip

Hi, How are you all? I haven't been here a while. I have made a simple keygenme. There is 1 thing to do. 1. Make a keygen, level 1, I think. Here is a AV scan link, no threats. http://chk4me.com/check/public/4wM4pzG985B85a11PVET4 There can be serials fished, also some serials you wouldn't think off at first. Have fun and good luck. Keygenme in winrar, 15.2 KB: Unrarred file size: 36.5 KB Keygenme.rar

This is my first keygen-me so good luck. Original Language: C# Difficulty: Beginner to Intermediate Obfuscated: Yes (SmartAssembly) Self-Keygen/IL-Patching: No Not sure if the algo I wrote is used in real software but it works and creating a keygen for it shouldn't be too difficult. Keygen Me.rar

Hey guys, A friend of mine wanted to learn some keygenning, so I crafted this small challenge for him, hope you guys will enjoy it too. Probably level 2, depending on your skill. Attached Greetings, Mr. eXoDia Keygenme.rar

[Keygenme] .NET Keygen me1 Coded on C#. Level: medium I think! Protected with SmartAssembly 6: just name obfuscation! NETKeygenMe1.zip

This is my first ever CrackMe Packed: Enigma and more.. Hoping its not too easy Enjoy Unpackme_CrackMe.zip

hello test t and answer :-p unapck just .net :-p coded app :-p have 2 version unpcked 2 file :-p and write your soluton how unpack this :-p elnaz.zip

* i find bugin keygenme * please donwload again thx. Rules: 1.keygen or valid user and serial btw: 1.i set the buffers small so if you try to enter more chars than it can get the keygenme will be crashed(find out how max you can enter) 2.there no bad message(so if you enter bad serial it will close it self) 3.for who slove the first one there no big changes but if you take in sloving this too big respect from me 4.thanks to dreamer that help me find the bug that caused crash on some pc's have fun FixedSecondKeyGenMe.rar

rules: 1.keygen 2.and if you can make atut have fun:D btw: 1.i set the buffers small so if you try to enter more chars than it can get the crackme will be crashed(find out how max you can enter) 2.there no bad message(so if you enter bad serial it will close it self) CrackMe.rar

WinLicense - Professional Software Protection and Licensing Management [Version 2.1.3.32] Protection Options for Software: WL-TM.2.1.3.32 --------------------------------------- Macros Information ------------------ VM Macros: 0 CodeReplace Macros: 0 ENCRYPT Macros: 0 CLEAR Macros: 0 MUTATE Macros: 0 STR_ENCRYPT Macros: 0 RegisteredVM Macros: 0 CHECK_PROTECTION Macros: 0 CHECK_CODE_INTEGRITY Macros: 0 CHECK_REGISTRATION Macros: 0 CHECK_VIRTUAL_PC Macros: 0 Protection Options ------------------ Anti-Debugger: ADVANCE Anti-Dumpers: ENABLED Entry Point Obfuscation: ENABLED Resource Encryption: ENABLED VMWare compati…

Name : KeygenMe#11 Language : Autoit Level: ????? Packer: Not Obfuscation: Yes Rules: Keygen Not Patching Not Serial Fishing Not Self-Keygen Hug KeygenMe#11.rar

Hi... All !!! ... Try my regular KeygenMe!!! Rules: Only Keygen + (If possible, write a tutorial...) Level - ? (Tell me if you know...) KeygenMe.zip ------------------------------------------- Greedy_Fly

UnpackMe VMprotect Ultimate v2.12.3 crackme.vmp.rar

Safengine has released its Protector today.And Here is two UnPackMes. "UnPackMe_se_220_Default.exe" is the default Protect option. "UnPackMe_se_220_Mid_VMed_6Routine.exe" is My Packed which uses some other option etc. Hope You can like it. If you have Unpacked it. Will you make something to be known to the public ? UnPackMe_se_220.rar

Ever had trouble with Police? Check this police box (Linux again) PB.zip

Not too much to say about but let the following be a storyline of the challenge: "This program is believed to be used to check validity of superheroes' secret passwords." Your objective is to analyze the program and find the secret passswords. It's up to you if you want to submit your answer here or via PM to me. It will be up for a week then I will post my detailed solving method. Enjoy it! OldSkewl.zip

This time we switch the format Figure out what this does, then do it backwards! (Again, just like last time, you are looking for a flag/solution/password). reversible.zip

Hello everyone, Here's my new KGM challenge for learners. As the name suggest this is a puzzle and I guess to solve this you must have some knowledge about something I will not reveal here what knowledge. Try yourself to find it One more thing, if you try to patch this KGM, you have to understand it else it will warn you A valid submission is: 1. Only a keygen coded on your own. Rules 1. No brute force, no code ripping or patching If you have some time write a nice tutorial explaining the method and technique used inside. Puzzler KeygenMe #fixed.zip

You need to make it accept not valid username and userkey. When you run the app first select cracktest.exe as a program and than fill in username and userkey and than click run program. If it says "sorry invalid vip member" than you are failed and if it says something like "valid" and closes itself than you have successfully bypassed the login check. You need to upload the cracked bin to prove it that you have cracked it. Rate the difficulty level. Good Luck. delphicrackmehard.rar

Your goal in each of these levels is to find the password which will lead to the congratulations screen displaying the second password. Level 3 [easy] http://www.sendspace.com/file/s8fvuw Level 4 [easy] http://www.sendspace.com/file/mmnqiz Level 5 [easy] http://www.sendspace.com/file/21d742 Level 6 [easy] http://www.sendspace.com/file/b0to19 Level 7 [medium] http://www.sendspace.com/file/tfyglr Level 8 [medium] http://www.sendspace.com/file/b5reev

Hello! I made a new crackme with this things: Language: Visual Basic .NET Protection: ExePack.NET Rules: Crack this crackme to show the good message. But you can't dissamble the code, edit it and compile it again! So you can't use Reflexir. Let's see how you do it Level: 2/10 crackme_lordcoder.rar

1.project.rar Packed: dongle and VM 2.This simple。project simple.rar Packed: dongle and not VM Project1_new_xuniji1.rar project simple.rar