Anarchy2k3 - July Solution by Vallani , published Vallani has not rated this crackme yet. No rules, either patch it or keygen it. Info: - It's been a year since I released a crackme, Density, released on my 19th birthday. Time for another one, this one has been well coded and I hope you enjoys it. It has a very special algorithm ; - No patching. Solution by DaBookshah , published DaBookshah has rated this crackme as boring.
Rulez; - No patching just make a valid keygen and a tutorial ;. Votes: 7 Crackme is quite bad. Have phun. Solution by Crosys , published Crosys has not rated this crackme yet. Solution by profdracula , published Solution by fjlj , published Please comment it, especially the GUI. Solution by Zirux , published Zirux has not rated this crackme yet.
Solution by figugegl , published Vallani has rated this crackme as quite nice. An easy crackme for fun. Invalid serials will display "NOPE" message. Compiled with visual studio - no superfluous libraries, no optimization. Solution by Encrypto , published Encrypto has rated this crackme as boring crap. Another simple one for fun - find the the only valid serial. Compiled small with no extra library and no optimization. Votes: 6 Crackme is boring. Solution by hound , published Solution by noukeys , published The decision is based on one call.
No decoys. The call is to the "Russian Dolls" verification function. Russian dolls are those dolls where there's like one inside another, and one inside that, and so on You'll quickly see the similarity of how this verification function executes and the dolls that the crackme name refers to. Write a keygen and a tutorial. I can think of a few ways to make this protection much nastier, let me know your ideas after you solve it.
SDDecoder keygenme by gbe is a truly amazing work, worth anybody's examination. In this knock-off, the strengthening factors are removed, namely: - the input and output transforms are separated from the core function - the key size is reduced from bits to 64 bits - some other minor simplifications Here is a list of example codes. Solution by Numernia , published Numernia has not rated this crackme yet.
In this sequel to SDDecoder Jr. I've tried to find a median between no security and full security for the sake of study. Included is full source code for the license scheme kit used to produce these challenges see. I will give you some major clues on it: there is no scheme in the system, no trapdoor.
It's pure math. The function is a bijection. Remember that an extension field is a vector space over its ground field. Source is provided also. Clue 2: google: hidden monomial Clue 3: remember no trapdoor here! Example codes are given in each respective crackmes' GUI. Keygen for them all is only solution! Votes: 4 Crackme is quite nice. Solution by Dcoder , published Dcoder has rated this crackme as awesome. The only anti-debug is distracting multimedia : I apologise in advance if any bugs are found.
Kindly report them immediately. Crackme and a working keygen were tested on bit XP SP2. Keygen only! Votes: 7 Crackme is nothing special. Numernia has rated this crackme as awesome. Solution by kao , published Solution by br0ken , published A simple KeygenMe written in AutoIt3. You must find a valid username and key. Good luck. It's packed with UPX. The keygen will be trycky i think becase I implemented recursion. The main thing is that I want to show how recursion can be nasty when you are trying to reverse it.
Hope you will enjoy reverseing it! Best Regard Ank83 P. This CrackMe is dedicated to my wife Irena and my daughter Mila. Solution by Kerberos , published Kerberos has not rated this crackme yet. This crackme is a product of 10 minutes writting. It's only for newbies, becase it's damn to easy. I promise to the advanced crackers that I will write another one! It will be interesting for the newbies becase it is just simple math.
Solution by l0calh0st , published Solution by NexusC , published NexusC has not rated this crackme yet. Ox87k has not rated this crackme yet. Solution by HMX , published HMX has not rated this crackme yet. Solution by Napalm , published Napalm has not rated this crackme yet.
Pyramid is all in one crack me! In it you have unpacking, fishing a serial, enableing buttons, checkbox combination, keyfile, NAG, keygenerator, OllyDbg protection, patching e. It's full of trick and traps, so beware! The CrackMe will misslead you all the time so dont belive anything u see! I dont think that you will crack it as fast as i wrote it! Task: Find the serial in stage 1, checkbox combination in stage 2, reconstruc the keyfile in stage 3, make keygen for stage 4!
Do all this without patching, and everything else you can patch! Hope you will enjoy cracking the Pyramid! Best Regard Ank P. This CrackMe is dedicated for my newly born dauther - Mila! Solution by fira , published Solution by scarabee , published Hi all! I bring you my latest CrackMe 6.
Please send comments and bug-reports to anorganix[at]gmail[dot]. Encrypto has rated this crackme as quite nice. Solution by merker , published Solution by deroko , published HMX has rated this crackme as awesome. Objective of Fascist KeyGenMe 1 is obviously to keygen it, but finding one serial number is also accepted. Just be sure to mention how you found it.
You're on your own from here. A tiny symmetric encryption algorithm 32bit input, 32bit output, 32bit key. Solution by JoKa , published JoKa has rated this crackme as quite nice.
Solution by andrewl. A keygenme with a very simple checking algo, but realized at embded virtual machine embded into another VM. For more information see readme. Solution by Babo0n , published Babo0n has rated this crackme as quite nice. Hi :]. This is my second crackme I decided to release.
Everything can be reversed i made a working keygen myself. The goal is to make a working keygen. Extract the contents of the zip file to a folder. Open "home. Hint : Only a valid key should give an output that makes some sense ; Objective : Find a valid key. Solution by demoth , published Aodrulez's Crackme V1. Solution by mjesun , published Unpacking is considered correct if the unpacked Unpack.
You can not add ap0x unpacking engine. You can only use things located inside the challenge archive. Due to the fact that Unpack. Contact email: ap0x. Solution by haggar , published Rules: Found the correct Serial, and create a mini kg in the lenguage as you can Coded in vb.
Solution by jiml , published Hi all, no rules for this crackme, do what you want. Goodluck and send me your solution to arashrj gmail. Solution by mucki , published Solution by pwn , published Solution by r0ck , published Solution by Adjiang , published Adjiang has rated this crackme as nothing special.
To crack this crackme your need to debug device driver's protection and break it without code modification and brute-force. First,it seems it's quite hard do find crypted bites,but you need to see the SUB intruction to understand everything!
Solution by rAsM , published Hi, here is the very simple protection with obfuscation. It's not uncrackable, you can do it easy. Still it can show you the ability to make your reversing much harder if you are not ready for the binary code deobfuscation. Of course, only keygen is a valid solution. I wish you luck. Solution by acruel , published Below is brief information.
The original section of code that controls the movement of the medusas has been transformed by MineLock I technique. You will not find plain assembly instructions changing the positions of the medusas. Also, the transformed code will move the medusas correctly only when the Pocket PC is running at its maximum speed or it will freeze the medusas or quit the program otherwise.
Requirements: The challenge is reconstruct the original code which changes the positions of the medusas and patch the program for it to run correctly with all speeds of the Pocket PC. You must not simply guess and rewrite the code. That is, explain clearly how you get the original code by analyzing the executable file only and support your arguments by reference to the assembly code of the program.
You can do it in anyway using any tools of your choice. Usage: There are an executable file and two license files. For the program to run correctly, rename the corresponding.
You can try running the program with a different speed of the Pocket PC or with a wrong license file to see the medusas freezed. Solution by noptical , published Try to crack it. It is my keygenme Now You have to find out serials for your name But the Serials Are based on your name and the serial.
You have to find the last two serials.. I think it's not so easy You can try Sorry for my Bad English.. Packer: You have to Find.. You've To find serial and reg With Id for your name. Mission: Patch those nags write A keygen. Write a nice solution Easy Crackme It's Packed. Mission: Enable Check Button. Patch those nags write A keygen. It is my keygenme number two Now i'll give you my pass and you have to find your name..
The serial is random It's encrypted. So at first You've to Decrypt it!! You have to find two name.. Works on XP. Don't know about others.!! Must have Vbscript Host. It's not easy i think. Make a keygen. Write a Cute solution. Sorry for my bad English.. Thanks to Everyone Solution by draww , published It is my First Crackme You have to find out Five Serials The Name is "as you wish".. But the Serials Are the same.
It's easy Solution by Mr. It is my Second Crackme Now You have to find out Six Serials But the Serials Are based on your name. Solution by havaliza , published Try to crack this CrackMe.
Patching is not allowed! It's my first btw. Feedback would be nice :D Have fun! Indeed this is my first keygen so i will be too glad to take your feedback and advises so keep commenting :. Patching is allowed in case you are going to make a patcher. A new keygen me the 3rd one :. Feedback , Comment. MACH4 has rated this crackme as awesome. Solution by ultrasound , published EsKiMo has rated this crackme as nothing special.
Solution by D4ph1 , published D4ph1 has not rated this crackme yet. Solution by Lesco , published Lesco has not rated this crackme yet. Solution by ShadowKat , published ShadowKat has not rated this crackme yet. Another KeyGenMe but for Linux. Wrote in C and compiled with GCC. This x86 Linux binary is bit and need libc6. Rules: - No patching.
Solution by magnanimous , published Solution by whats , published Hi crackers, this is my first crackme I made it easy and with sources codes 54 lines, not packed sometimes bruteforce is required that's why I want you try this one.
I want the good key and a working bruteforce I hope you enjoy astigmata. Votes: 10 Crackme is boring. Votes: 6 Crackme is quite bad. Solution by lagalopex , published Solution by kewlkish , published Solution by xyzero , published Solution by myllan , published Solution by hacnho , published Solution by juza , published Solution by zairon , published Run a. It is composed by 2 parts so that I choosed the name Parts it has been written using C other info can be found inside the rules.
Good Luck Have Fun. Try generating a valid key for this crackme. The executable file is also available for linux is attached in the zip file also. Have Fun! Solution by klefz , published Hi Guys. As there's not packer or any hard algo this could be something for beginners, but I think it's too hard for real n00bs.
Solution by Sunshine , published Sunshine has not rated this crackme yet. Solution by cmorbach , published This Crackme is an Keygen.
So you need to find out the way how the Keys are generated and write a tutorial. The complete Steps are listed in the zipfile. Solution by sk8r4life , published Solution by Bytedevil , published Bytedevil has not rated this crackme yet.
Solution by Apocalyps , published Apocalyps has not rated this crackme yet. Solution by cooller , published Solution by elfz , published Solution by Bswap , published Bswap has not rated this crackme yet. This one is different than my previous crackmes. I tried to make it interesting but not too hard. This time you will deal with some old and easy encryption methods. Not much of a challenge for crypto lovers but still coding a keygen could be a little tricky.
Solution by [Wizzer] , published This CrackMe is my first one so pleaze test it, send your solution and support me a little. Thiz is my fourth CrackMe, it should be harder, than my other CrackMes. Rulez: 1. Have Fun 2. Don't patch any jump 3. Avoid to use DeDe 4. Avoid to give up Thiz is all, now go on and Crack It.
Thiz is my first Serialme dont Patch not needed just keygen it. Thiz is a Sudoku-Game with an easy Registration-Part it has three rulez 1. Solution by geeko , published Good luck on this one. The algorithm is pretty simple ; Don't patch it, keygen it ; Feel free to comment. Please notice that this is my first CrackMe, I dont really know the correct difficulty level. Solution by WoCCC , published WoCCC has rated this crackme as boring.
Votes: 3 Crackme is boring crap. Adjiang has rated this crackme as boring crap. Solution by obnoxious , published Solution by sd , published You may only patch the disabled forms. Solution by mccool , published Solution by rsumi , published Solution by arlkers , published Solution by Himsord , published Himsord has not rated this crackme yet.
Solution by modchip , published Solution by konstAnt , published Rating Waiting for at least 3 votes we have only 1.
Rating Votes: 3 Crackme is quite bad. Rating Votes: 4 Crackme is nothing special. Rating No votes yet. Rating Votes: 4 Crackme is boring. Rating Votes: 4 Crackme is good. Rating Waiting for at least 3 votes we have only 2. Rating Votes: 3 Crackme is boring.
Rating Votes: 3 Crackme is nothing special. Rating Votes: 3 Crackme is quite nice. Rating Votes: 7 Crackme is boring. Rating Votes: 6 Crackme is nothing special. Rating Votes: 8 Crackme is nothing special. Rating Votes: 4 Crackme is quite bad. Rating Votes: 5 Crackme is boring. Rating Votes: 5 Crackme is quite nice. Rating Votes: 7 Crackme is quite bad. Rating Votes: 6 Crackme is boring. Rating Votes: 4 Crackme is quite nice. Rating Votes: 7 Crackme is nothing special.
Rating Votes: 10 Crackme is boring. Rating Votes: 6 Crackme is quite bad. Rating Votes: 3 Crackme is boring crap. Download NaLeTcrkMe. Rate this crackme: boring crap kinda boring just ok good awesome Send a message to [:. Rate this crackme: boring crap kinda boring just ok good awesome Send a message to.
Net » View profile of. Net ». Rate this crackme: boring crap kinda boring just ok good awesome Send a message to 0xF72 » View profile of 0xF72 ». But other enumerating 'possible errors' is not errors; Several instruction yet can be wrong, cause i don't test all VM, only instruction what i used. Download challenge. Rate this crackme: boring crap kinda boring just ok good awesome Send a message to 0x00ach » View profile of 0x00ach ».
You forgot to do some error checking. If calc. Keygenning finished! I have found out that for the name "S0urceC0de" or for any name there are 65, possible serials all of which are valid. However only one of them is the correct password for src. You're all right : it only works on win XP x86 Intel machines I'll check the serial issue asap! What version of ntdll. Or is it intentional? I'd like to find the solution very much, it is very interesting crackme indeed, but it seems impossible to complete it if program won't run.
Don't want to leave it half-way done. Ok, I was wrong about pow, didn't notice off by one offset for this procedure. Also bogus command at f doesn't matter because of TF.
So it works. Wonderful crackme, very interesting obfuscation technique. But unfortunately I came to same results as barun described: keygened same key for S0urceC0de, and it doesn't match. Masoud The password of the zip is actually a simple modification of the serial. I have already completed keygenning this long ago, will try upload the solution soon. How did you find the correct password? Download oxfoo1m3. Rate this crackme: boring crap kinda boring just ok good awesome Send a message to 0xf » View profile of 0xf ».
Download lcm6. Rate this crackme: boring crap kinda boring just ok good awesome Send a message to 1emuriez » View profile of 1emuriez ». Download 2sweeet2. Rate this crackme: boring crap kinda boring just ok good awesome Send a message to 2sweeet » View profile of 2sweeet ». Download sweeet1. Rate this crackme: boring crap kinda boring just ok good awesome Send a message to 3n! Rate this crackme: boring crap kinda boring just ok good awesome Send a message to 7ssX » View profile of 7ssX ».
Bad DES implementation If you are using block cipher in protection you must use encrypt and decrypt. In this crackme you're using DES as one-way hash function :. MD5Hash key ; this. GetBytes stringInput ; return Convert. ToBase64String this. TransformFinalBlock bytes, 0, bytes. Download crackme1.
Rate this crackme: boring crap kinda boring just ok good awesome Send a message to Aaerox » View profile of Aaerox ». Download crackme. Just crack the username and password!! Rate this crackme: boring crap kinda boring just ok good awesome Send a message to abcd » View profile of abcd ».
Maybe the tool is wrong or I misunderstood something you wrote, eh? I'm surprised nobody has cracked it still Mostly, everyone was bored with it or not interested. Ah should have read the instructions a bit more carefully ; Hopefully if I find some time I'll solve it the way as intended. Hmm, your "solution" doesn't work here, because adresses are different.
I think we got to exploit the license file buffer overflow or code injection or something? I managed to inject a messagebox using the license file, but i still get an error after clicking the OK button. Other than that, it works :P. I have a valid license file in order to exploit it as you want but i have a problem. I need esp but it change from pc to pc and so i can't memorize it. The only way i know is to create a loader that runs the crackme, after you press Test it grabs the value of esp and with it create a valid license file.
All you need is there if i've unrerstood you properly. TeruS, your keyfile doesn't work on my pc infact it crashes when, after retn, you call MessageBoxA I don't understand why you can exploit it with a retn over messagebox without any parameters!
You have to inject your code in the memory with the license file and not just call the messagebox moreover without any parameter. Woah, Ox87k that looks great. Mine is crashing all the time after clicking the OK button. It should only work on my own pc, due to different adressess stuff.
DigitalAcid: Exactly! Why your license crashing after clicking the Ok button? It's because of the RET. I tried adding a jump to make it go back to some original code, but nothing seems to work. DigitalAcid: Read the readme and see the iat about your error! Oh, I didn't see we had to add "Hacked! What is the connection of the IAT and my error O. Are you sure to have readed the readme. Ox87k,your video preview was looking great. What i've done? It works without error now. Weee, finally got a working version now :P.
I had problems with my string that got overwritten. Only had to add 3 bytes :O. I asked my nephew to test the crackme on his pc with my same license and he said it worked, so please somebody try my file too :.
It might have been coincidence. DigitalAcid your solution did not work on my comp DigitalAcid: Your keyfile doesn't work for me too but i don't think it's a problem. I agree with TeruS, i think it's impossible to find a valid universal keyfile. All depend from ESP's value.
Maybe in some machine it works good because they can have the same esp of DigitalAcid's solution required but in many other machine isn't it. You can see this difference in my solution, look the video-solution, i tried to show you this crackme over two different machine with the same os.
What about me - on VM my keyfile works almost good : But instead of a good text in a box i recieve some unrecognizeble characters :. Terus: I had the same problem but without using VM. What i did was subtract a value from esp, as you can see in my tutorial. My string simply got overwritten. DigitalAcid: If you don't wan't that your string is overwritten try to copy esp in another register and then subtract it as i did.
Is there any modification needed patching to find the right serial? Or is it a trick or bug? Ps: no matter what i put in, it does something with my input, then it's doing something wich is always the same and not using my input after that.
Download crackme2. What do you mean by assembler language. It looks like this one is not coded with a C compiler or an asm compiler In which language is it really created and which compiler is used then? At one point I am in a loop. It checks the following lines for a byte 2C hex. What is the point of that to be checking that for 2C in hex? When one of those bytes is not 2C hex the next line is skipped: Is this supposed to be like that? I did not patch anything. I have looked in my ntdll file and there are no functions at the specified addresses Could you give me a hint on this one?
Thanks, Devoney. Devoney you are nearly there When I output the data with a messagebox outside the debugger the bytes are empty. Is this a debug trick? Do I miss a part here? I definitely need a hint ;. Rate this crackme: boring crap kinda boring just ok good awesome Send a message to abex » View profile of abex ».
Submission is closed because there are too many solutions for this crackme, we don't need another one. Please, work on unsolved crackmes :. I like this one. Code is short, so it's not overwhelming me.
Will definitely look at other crackmes from abex. Download l2cabxc2. Download l2cabxc4. I like it, too. I got lost around those string-concat functions because I forgot that 1st parameter is a 2nd push. Another lesson learned the hard way. Download l2cabxc3. Simple code but very instructing, I like it.
It totally reminded me that numbers in asm are in hex-system, so "cmp eax,12" is You should know debuggers show numbers on hexadecimal mode. Abex just one tip next time you write a keyfile if you don't like to make a multiple keyfile at least make it check for a standart key obsfucate the code pack it make a debug trick. And not a key whatever the cracker likes. I got bored on doing that.
It's sooo obvious it took my 5 secs. Download ABuggerKeygenMe. Rate this crackme: boring crap kinda boring just ok good awesome Send a message to ABugger » View profile of ABugger ». The usual keygens generate password from username, but with this one I think generating password from username is much harder then generating username from password.
I think it was a quiet nice. NET application to reverse engineer. A few pitfalls make it challenging. Download MathCrackMe. Download ABuggerCrackMe2. Very simple indeed but would be good for people who are trying crackme s for the very first time.
Download crakmeeasy. Rate this crackme: boring crap kinda boring just ok good awesome Send a message to abzet » View profile of abzet ». Download CrackMeV3. Rate this crackme: boring crap kinda boring just ok good awesome Send a message to acafeel » View profile of acafeel ».
Download acidburn1. Rate this crackme: boring crap kinda boring just ok good awesome Send a message to acid bytes » View profile of acid bytes ». Rate this crackme: boring crap kinda boring just ok good awesome Send a message to acid cool » View profile of acid cool ». Download matrix. Rate this crackme: boring crap kinda boring just ok good awesome Send a message to adamziaja » View profile of adamziaja ».
Download KeyGenMe2. Rate this crackme: boring crap kinda boring just ok good awesome Send a message to Adjiang » View profile of Adjiang ». Download KeyGenMe3. To the mods.
My solution is similar to xylitol's. Only difference is , I used Olly. Should I upload? Download Keygenme4. Download KeyGenMe 5. Im not much into VB, but it seems there is some crypto maybe DES or similar that creates a hash using name, id , and name of file or project "KeyGenMe 5" whats being used as a key im not sure.. Download lincrackme2. Rate this crackme: boring crap kinda boring just ok good awesome Send a message to adrianbn » View profile of adrianbn ». Fair enough tamaroth ; I'll be publishing more crackmes, increasing difficulty step by step, but I promise that in two or three more, you won't be able to use dead code analysys so easily ; Anyway, I recommend you that you try to find the antidebugging tricks, so next crackmes will be easier : Thanks for trying it and giving feedback!
I gave it a go with debugging under gdb, was quite interesting doing it for the first time, i considered writing some words about setting up your gdb and walking with it, but little bird told me that there's a tut in a queue already, so i stopped ;p. Download lincrackme3. Quite fun. Even though you said no bruteforcing is allowed, i used simple brute force to generate completely random serials. Hi tamaroth, Im glad you enjoyed the crackme.
Did you actually got the key from the code or made a bf program who generates keys and tests them against the crackme? The second one is like cheating! Put some willingness and be the first to submit a solution ;. I'll drop you my keygenerator it's written in C, all by myself , therefore it's a keygen but it uses some form of brute force generates random numbers and then check then against the checks that are made inside crackme.
See pm with the link to the keygen :. Tamaroth, that's exactly the kind of solution I was looking for. I first understood that you just generated random numbers and feed the crackme with them to see if they fit.
That was obviously not allowed. However your keygen demonstrates that you've bypassed all the protections, understood the code and code somthing similar in C to find the keys. Very nice job! Hi hasherezade, Good you find the crackme pleasant : Go for it and post a solution! The key algo is funny. The antidebugging protections are well known by reversers. My solution is waiting the moderators review since nov, 12th they may be really busy. Finally hasherezade's solution went through.
Note: You must ensure that you enter an actual email id for the email box. Do not utilize irregular mail IDs. It is the only way through that you can retrieve your Synapse X account. You lose it is through the email you previously entered. It would take few seconds to register your account. After that, a victory screen should look when you did all the initial steps exactly.
Installation of Synapse X will take a few moments, and it totally depends on your internet connection, while Synapse X has to downloaded files needed for its execution. If all the processes operated adequately, then you can shift on to general usage. If you face some trouble, then read the troubleshooting segment, which is given below. When you click on the register option and get an error, it ordinarily occurs when you previously registered your account. In that case, you directly sign in to your account by entering the credentials, or you have the wrong serial key.
Ensure that you must purchase a Synapse X key from the official website, i. The Synapse X is designed to make your experience better with powerful features and a user-friendly user interface. The user interface and its characteristics are shown in the picture below. This Tab Controller also has some useful features, i. You can then use the right-click to load it into the editor or execute the script. There is further the Autoexec folder, which will automatically execute Whenever you attach Synapse X or teleported.
This can help in custom global functions and other scripts that you always require to be executed when you perform attachment. The options tab in Synapse X enables you to configure multiple settings in it that are explained on the next page.
Several settings can be made with the help of the options tab that enables certain special features or protections in Synapse X. AutoAttach and AutoLaunch are two different selections that work for similar purposes to automate the attaching process for you.
But over the AutoAttach option, the AutoLaunch option has numerous advantages that are given below. Rather than attaching Synapse X whenever you open the UI, AutoLaunch does something different it will replace the launcher with a custom one made by Synapse X. An internal user interface provides a prominent feature within the game. If you use this feature, the AutoLaunch option will enable you to use the internal UI without opening the regular one.
These are both easy but beneficial choices that inhibit the accidental opening or end of the script in your tab controller. Synapse X will assist you previously doing those activities if approved. Editor theme enables you to convert the theme that is applied in the script editor. Choose one that satisfies you. That gathers the general usage pattern for Synapse X. If you require to form your own scenarios, further you have to proceed to the development introduction. We hope you experience Synapse X and all the characteristics it has to offer.
Due to the nature of the program, other antivirus programs can think of it as a virus. You should whitelist the Synapse X and disable your antivirus. It says so because Synapse X needs to be updated due to the game that updates every week or more often. The update is released every hour by the dev behind the Synapse X. However, sometimes the maximum time it takes to get the update is 6 hours.
Usually, it is because of your firewall or anti-virus, and when you disabled your anti-virus you will be able to get an update for Synapse X again.
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