[source code] Incuie EXE si COM

[Icarius]

Descriere

Dos based turbo "C" program which Enable/Disable .EXE or .COM file execution. Please disable any memory resident Anti Virus Program(Shield.)as this program changes the physical header of the .EXE or .COM file in order to make permanent changes. No need to creat another encrypted file. Now nobody can copy/execute your secret program.

Va dati seama ce puteti face cu asa ceva? :@

#include <fcntl.h>

#include <io.h>

#include <dos.h>

#include <stdio.h>

#include <string.h>

#include <process.h>

unsigned char buffer[3];

FILE *fd;

int handle;

fail(char *);

void pass(char *);

main(int argc,char *argv[])





    {

    int n;

    if(argc!=3)





        {

        printf("nFailpass Utility v1.0 Email: [email]chingpongin@yahoo.co.in[/email]");

        printf("nEnable/Disable .EXE or .COM execution");

        printf("nsyntex failpass fail <filename.extension>");

        printf("n or");

        printf("n failpass pass <filename.extension>");

        exit(2);

    }



    strupr(argv[1]);

    n=strcmp(argv[1],"FAIL");

    if(n==0)





        {

        fail(argv[2]);

        exit(2);

    }



    n=strcmp(argv[1],"PASS");

    if(n==0)





        {

        pass(argv[2]);

        exit(2);

    }



    return 0;

}



fail(char *fname)





    {

    _chmod(fname,1,FA_ARCH);

    fd=fopen(fname,"rb+");

    if(fd==NULL)





        {

        printf("nCann't open %snn",fname);

        exit(2);

    }



    fseek(fd,0,SEEK_SET);

    fread(buffer,2,1,fd);

    if(buffer[0]==0xcd)

    if(buffer[1]==0x20)





        {

        fclose(fd);

        printf("n%s already protected...nn",fname);

        exit(2);

    }



    fseek(fd,0,SEEK_END);

    fwrite(buffer,2,1,fd);

    fseek(fd,0,SEEK_SET);

    buffer[0]=0xcd; /* don't take any PANGA with this line */

    buffer[1]=0x20; /* don't take any PANGA with this line */

    fwrite(buffer,2,1,fd);

    fclose(fd);

    return 0;

}



void pass(char *fname)





    {

    int xyz;

    fd=fopen(fname,"rb+");

    if(fd==NULL)





        {

        fclose(fd);

        printf("nCannot open file %snn",fname);

        exit(2);

    }



    fseek(fd,0,SEEK_SET);

    fread(buffer,2,1,fd);

    if(buffer[0]!=0xcd)

    if(buffer[1]!=0x20)





        {

        fclose(fd);

        printf("n%s is NOT protected....nn",fname);

        exit(2);

    }



    fseek(fd,-2,SEEK_END);

    fread(buffer,2,1,fd);

    fseek(fd,0,SEEK_SET);

    fwrite(buffer,2,1,fd);

    fclose(fd);

    handle=open(fname,O_RDWR);

    chsize(handle,(filelength(handle))-2);

    close(handle);

}

[edyshmen]

unde bag asta?

[maleficus]

pai e cod de c.tre sa-l compilezi in c .normal.

[Icarius]

Traiasca Copy/Paste-u care nu vrea sa afiseze creditele. Sau nu e de la Copy Paste?!

explica-te mai pe intelesul meu...

[Icarius]

pai codul il aveam scris intr-un txt. l-am luat mai demult de pe un site, nu mai stiu care.

[nos]

tre sa il compilezi cu borland c++ ba ce progrmatori aici stiu yo la 11 ani si nu stie el...... =))

[mc1]

amazing :?