hisoka

it is a lowercase word . How I know it because I read in the mind of the challenger . I know the input . The input is the ciphertext which is an RC4 cipher . var input = "This is the input message"; var output = "LgYkO2JSfWoA394oOvXrwO4mtuDkusLCzg=="; we do not know the output . Because the output is the plaintext . So is not correcter to put the variable output as undefined like this : var output = " "; var t = toLowerCase(test); if(t.indexOf(' the ') != -1 || t.indexOf(' and ') != -1 || t.indexOf(' is ') != -1){ alert(test); } this is very brilliant

I yes of course , only some keys should be changed and not the entire registry . However is not backing up one key then trying to restore it dangerous as well ?

What if you want to change things in the registry many time in a different time ? you cannot reinstall your complete system every time . It makes no sense . So I do not think it is a good solution .

I , indirectly, answered this question in another topic . I said that I never got the opportunity to learn computer science at university or at the hands of any computer expert for reasons I cannot mention here in this forum . Therefore what I am searching for , through my questions , is LEARNING and PROGRESSING . The only method to achieve this is to ask and ask and ask and ask and ask and ask . Reading tutorials , books and articles will provide me with information but will never make me progress . What makes me progress and become the best is asking . My questions seem weird , strange , stupid call them whatever you want but I do not see them like that . I do not even believe that there is a stupid question . It is all in the eyes of the beholder . It is like ugly and beautiful . It is all subjective . It is thanks to the questions that I asked in this forum , that you see as nonsense , that I learned and progressed . If I compare myself now with the time in which I first registered in this forum . You will bet I am far far better . I read things I cannot understand and to which I find either NO answer in the internet or a stupid answer of an amateur who knows nothing or a very complicated answer of an expert . So , I ask in the forum . This forum is , honestly , the best ever . Now about the context of my question . I thought you know it . However if you do not know I will tell you : I have an EXE file . when I try to run it , it says windows could not find the exe file make sure you typed the name correctly and try again . I read in some articles , some of them I mentioned the link here in this forum , that by changing something in the registry , I can avoid the above error . So as changing things in registry is dangerous and backup of registry is bad idea , I wanted to know a better and secure method to backup the registry without jeopardizing my system. This is the context of the above question . Unfortunately , the second half answer of the guy : is from my point of view vague so I asked for a technical explanation . yes of course , you are right it is me : I am a newbie , inexperienced , unskillful . This is why I am here . You as an expert . You see my requests and questions from the top of the mountain differently than me from the bottom of the mountain .

hello , what do you mean by ?

I know that the text is in English and I know that the password used to generate the key stream , is an English word with maximum 7 letters and minimum 3 letters and of course I know the ciphertext . Based on all these information , brute forcing will not take a long time , it will be the efficient and right method . the password lists , used in brute forcing are of course in English , and not a problem to get as I can find many lists using google . My only problem is that I cannot write the program that can do the brute force . I will , if I ever know how to write it , write it in javascript as it is the only language I know LITTLE about (better than nothing) . I have , absolutely , no idea about C++ , PHP or JAVA . Therefore I will write it in JAVASCRIPT . the algorithm can be like this I guess : 1) I need a program that decrypt . So I need to know how decryption is done 2) the program should be linked with the password list files . So it will take or accept , for example , 60 MB passwords 3) the program should know the right output that is the plaintext . How I do not know ? I mean how can the bruteforcer determine that it has the plaintext ? What do you mean by " appropriate test " ?

In this website , it is mentioned that registry backup is a bad idea : https://superuser.com/questions/608066/is-it-possible-to-import-a-windows-registry-file-without-destroying-a-system 1) to what location should they be copied ? could you please explain to me , technically , how this will happen ? who will replace them ? and how ? how is replacement exactly done ?

OK could you please show me , step by step , how to fulfill this project ? Tell me please what to do step by step and from the beginning until the end thanks

I do not understand what do you mean by :

OK , lets suppose the password is a weak English word with 5 characters . So the password can be brute forced using a dictionary attack . The problem is that I could not find a bruteforcer that could do the job for me and recover the password from the above script and as i am a newbie , I cannot write my own . So what should I do ? could you please provide me with a good bruteforcer or if not possible help me write one or suggest another solution ? Best regards

the file I am trying to run is the file with the text extension I sent to you . I changed its extension to .exe and I named it key then I run it as administrator but I got the above error .

Yes yes yes I did understand you very well but . It is only that I forget . Thank you for remembering me . I change the file to .exe and run it as administrator but to my surprise I got an error that says : Windows cannot find key.exe make sure you typed the name correctly and try again . I did many researches , through googling the error , but none of the solutions I found in google helped me solve my problem . I am lost and really stuck and do not know how to solve my problem . Help

In the second link the following is mentioned : why should a name of a command or a program , in the context menu , changed to "%1" %* in order to avoid this error : can’t open .exe files in Windows 7 ? I do not understand . I think you should take a look at the video , which is 2 minutes and 50 seconds , short , in order for you to be able to answer my question .

In this website : http://www.howtocreate.co.uk/emails/test_RC4B64_js.htm When you clicked on the Download the script , you get a script . I know exactly what the script does . The script decrypts and encrypts based on a password . In the encryption process , the script asks for the password and the plaintext . From the password , a key stream will be created . Then , the created key stream will be XORED with the plaintext to give an RC4 cipher which , in return, is encoded to base 64 . the decryption process is the reverse of the encryption process. Anyway . My question is the following : Based , only , on these two information : 1) the ciphertext and 2)the script in the Download the script section is it possible to recover or hack or crack the password if we do not know it or we forget it ?

In these two websites : https://www.youtube.com/watch?v=Ux3iMvyS7to https://social.technet.microsoft.com/Forums/en-US/db35e055-fb5a-43a0-b478-a238a69b438a/quot1quot-mean-virus?forum=w7itprogeneral the following symbol "%1" %* is mentioned . What is it ? could you , please , explain to me what is it exactly ? Best regards

how ? you mean by double click on it ? Could you provide me with the link of the other topic so that i can revise it again because I do not know where did we have the same discussion in the .text file , there no binary data but a garbage of Unicode characters

I have a file with a text extension . When I opened it with a notepad , I noticed , apart from the plain text in it , thousands of garbage characters . Let me apply what I learnt : the extension does not tell anyone anything . Therefore I need to look at the content . The content is a mixture of Unicode-like garbage characters , in its majority , and plain text , in its minority . I think , based on the content of that text file , it is an EXE but i am not sure . I can be wrong . Could you please , look at the file content and tell me , suppose you have an approximate idea , what is the right program , based on its content of course , to use to open it ? because I am sure it is NOT notepad . I attached the file with my post .text

OK , if the file extension does not tell anyone anything and if it is up to the programmer to decide the name of the extension and how the file should be opened and so on ... how am I supposed to know , faced with a file , what is the right program to use to open it !? I cannot meet the programmer who programmed it to ask him So what should I do then ?

1) with due all respect , Sir , I do not agree with you . The file extension is not meaningless because it tells with what program should the file be opened . If you have a jpg extension file , that is a photo , and try to open it with a Winrar program or any other program instead of a photo viewer , the photo will not be opened and an error will be triggered . The extension tells with what program should the file be opened . Moreover , if I change the extension of the photo from jpg to txt and open it with notepad will I be able to see a photo ? no , i will see garbage characters in the text file . So how can you tell me that the extension is meaningless ? 2) in this link : http://www.winimage.com/zLibDll/minizip.html it is mentioned the following : which is the case for me . So I have minizip library in the contrib/minizip directory and I read all the files there like configure , makefile , minizip64-info.txt ... but i do not know how to compile minizip as it is not mentioned how to compile it in the above files . and not in the whole zlib directories

You mean that my compilation succeeded and that the above files I got , after compilation , are the right files ?? should not I get , for example , after compilation , a file with a DLL extension ? Are these above files what I am supposed to get after compilation of zlib source code ?

You are the best justsomeguy . The problem is solved and I do not see the error anymore . Here is the result : $ make test gcc -O3 -I. -c -o example.o test/example.c gcc -O3 -c -o adler32.o adler32.c gcc -O3 -c -o crc32.o crc32.c gcc -O3 -c -o deflate.o deflate.c gcc -O3 -c -o infback.o infback.c gcc -O3 -c -o inffast.o inffast.c gcc -O3 -c -o inflate.o inflate.c gcc -O3 -c -o inftrees.o inftrees.c gcc -O3 -c -o trees.o trees.c gcc -O3 -c -o zutil.o zutil.c gcc -O3 -c -o compress.o compress.c gcc -O3 -c -o uncompr.o uncompr.c gcc -O3 -c -o gzclose.o gzclose.c gcc -O3 -c -o gzlib.o gzlib.c gcc -O3 -c -o gzread.o gzread.c gcc -O3 -c -o gzwrite.o gzwrite.c ar rc libz.a adler32.o crc32.o deflate.o infback.o inffast.o inflate.o inftrees.o trees.o zutil.o compress.o uncompr.o gzclose.o gzlib.o gzread.o gzwrite.o gcc -O3 -o example.exe example.o -L. libz.a gcc -O3 -I. -c -o minigzip.o test/minigzip.c gcc -O3 -o minigzip.exe minigzip.o -L. libz.a hello world zlib version 1.2.11 = 0x12b0, compile flags = 0xa9 uncompress(): hello, hello! gzread(): hello, hello! gzgets() after gzseek: hello! inflate(): hello, hello! large_inflate(): OK after inflateSync(): hello, hello! inflate with dictionary: hello, hello! *** zlib test OK *** but I am really still confused . After building , I do not see any EXE file . Instead , I got these files and folders : folders : include , lib , share files : zconfig.h , zlib.h , zlib.pc , libz.a , zlib.3 What I am missing?

OK , I read them as you told me . and in the README file it is mentioned how to compile it . Now , however , I have another problem which is more complicated than the first : During the building process in cygwin , I got this error : $ ./configure Checking for gcc... Checking for shared library support... No shared library support. Building static library libz.a version 1.2.11 with gcc. Checking for size_t... Yes. Checking for off64_t... No. Checking for fseeko... Yes. Checking for strerror... Yes. Checking for unistd.h... Yes. Checking for stdarg.h... Yes. Checking whether to use vs[n]printf() or s[n]printf()... using vs[n]printf(). Checking for vsnprintf() in stdio.h... Yes. Checking for return value of vsnprintf()... Yes. Checking for attribute(visibility) support... No. $ make test gcc -O3 -I. -c -o example.o test/example.c gcc -O3 -c -o adler32.o adler32.c gcc -O3 -c -o crc32.o crc32.c gcc -O3 -c -o deflate.o deflate.c gcc -O3 -c -o infback.o infback.c gcc -O3 -c -o inffast.o inffast.c gcc -O3 -c -o inflate.o inflate.c gcc -O3 -c -o inftrees.o inftrees.c gcc -O3 -c -o trees.o trees.c gcc -O3 -c -o zutil.o zutil.c gcc -O3 -c -o compress.o compress.c gcc -O3 -c -o uncompr.o uncompr.c gcc -O3 -c -o gzclose.o gzclose.c gcc -O3 -c -o gzlib.o gzlib.c gzlib.c: In function ‘gz_open’: gzlib.c:243:20: warning: implicit declaration of function ‘_wopen’; did you mean ‘fwopen’? [-Wimplicit-function-declaration] fd == -2 ? _wopen(path, oflag, 0666) : ^~~~~~ fwopen gcc -O3 -c -o gzread.o gzread.c gcc -O3 -c -o gzwrite.o gzwrite.c ar rc libz.a adler32.o crc32.o deflate.o infback.o inffast.o inflate.o inftrees. o trees.o zutil.o compress.o uncompr.o gzclose.o gzlib.o gzread.o gzwrite.o gcc -O3 -o example.exe example.o -L. libz.a libz.a(gzlib.o):gzlib.c:(.text+0xab2): undefined reference to `_wopen' libz.a(gzlib.o):gzlib.c:(.text+0xab2): relocation truncated to fit: R_X86_64_PC3 2 against undefined symbol `_wopen' libz.a(gzlib.o):gzlib.c:(.text+0xc50): undefined reference to `_wopen' libz.a(gzlib.o):gzlib.c:(.text+0xc50): relocation truncated to fit: R_X86_64_PC3 2 against undefined symbol `_wopen' collect2: error: ld returned 1 exit status make: *** [Makefile:289: example.exe] Error 1 I checked this link for help : https://stackoverflow.com/questions/42537454/compiling-gcc-7-20170212-on-windows-7-64-with-cygwin-wopen-error There is it is mentioned : but it is not mentioned how these patches are done . I do not know how to do those patches . Or if there is another solution for how to solve the above error , I will be very thankful and glad to see it .

Thank you for your reply justsomeguy . After reading your reply , which helped me , I , now , know how to compile a single C or C++ source code using GCC and G++ in Cygwin windows . However , the ZLIB folder I installed from the https://zlib.net/ website has many source code files with .C and .CPP extensions . In addition to that , it has many different other files with different extensions like MSC , RAW , PAS , ADB , ADS 1) what I know is that the only files I should compile , using command lines with GCC and G++ compilers in cygwin , are the ones with .C and .CPP extensions (if I am wrong please correct me ) . There are , in the ZLIB folder , however , many files with .C and .CPP . should they ALL be compiled or SOME of them ? if they should all be compiled , should I compile them one by one or all in the same time ? and If I should compile them all in the same time , should I put them together in a one separated folder then compile them at once ? because they are scattered in different folders . Or It is enough to write there names all in Cygwin in one command line and thus Cygwin compiler will compile them all in the same time ? 2) what are the roles of the other different extensions i mentioned above ? for example PAS extension is pascal . What has pascal to do with our zlib program written in C ? RAW extension is used by cameras what has this to do with zlib program for compression and decompression and the same for ADB and ADS which are database files ????

I have windows 7 64 bit and Cygwin installed on it . I have zlib open source version 1.2.11 from https://zlib.net/ . I would like to compile it using Cygwin but I have no idea how to do it from the beginning til the end and step by step . Although I googled in the internet about how to compile zlib in cygwin , not only I did not find many articles , but the few I found were of no help to me as they do not show how to do the work step by step and in a simple way . Moreover , I read the zlib manual but there is not mentioned how to compile zlib . So any help on how to compile zlib in cygwin will be really appreciated

thank you very much