個人的後門程式開發（第一部分）：檔案操作和登錄檔管理

Ox9A82發表於2016-03-05

本來是想寒假時寫的，結果一直懶得動手。

雖然手上有ghost原始碼，但是感覺功能不是我想要的，比如把精力費在學MFC寫介面上不如改進下隱藏性。

基本的計劃就是做一個後門程式，目的是用來進行許可權維持的。目前來看是基於控制檯的，而且要帶有核心模組，應用層的主要問題就是沒寫過太大體量的程式導致搞起來很蛋疼，核心方面就是通用性坑爹，

藍色畫面起來也要費時間。

第一部分就是封裝的兩個函式，檔案操作和登錄檔管理。ghost是把這兩個功能封裝成兩個類，我這裡就直接用函式來實現了。

VS2015編譯透過

  1 //檔案操作類函式
  2 #include "windows.h"
  3 
  4 //Mode操作模式
  5 //0.新建檔案 1.刪除檔案 2.寫檔案 3.讀檔案 4.移動檔案 5.獲取檔案資訊
  6 #define CREATE_FILE 0
  7 #define DELETE_FILE 1
  8 #define WRITE_FILE  2
  9 #define READ_FILE   3
 10 #define MOVE_FILE   4
 11 #define QUERY_FILE  5
 12 
 13 #define FILE_SUCCESS 1
 14 #define FILE_ERROR   0
 15 
 16 //定義一個檔案資訊的結構，用於QUERY_FILE返回
 17 typedef struct _FileInfo{
 18     DWORD FileAttributes;
 19     char *FileName;
 20     char *TypeName;
 21 
 22 } FILE_INFO,*PFILE_INFO;
 23 
 24 DWORD FileControl(IN DWORD Mode,IN LPWSTR FilePath, IN OUT PVOID Buffer,IN __int64 FilePointer,IN OUT DWORD *Size)
 25 {
 26     HANDLE FileHandle = 0;
 27     DWORD Return = 0;
 28     SHFILEINFO MyFileInfo = { 0 };
 29     PFILE_INFO FileInfo = 0;
 30     __int64 TempPointer = FilePointer;
 31     TempPointer = TempPointer & 0XFFFFFFFF;
 32     __int64 *pTempPointer = &TempPointer;
 33     switch (Mode)
 34     {
 35     case WRITE_FILE:
 36     case READ_FILE:
 37     case QUERY_FILE:
 38         FileHandle=CreateFile(FilePath,
 39             GENERIC_READ | GENERIC_WRITE | GENERIC_ALL,
 40             FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE,
 41             NULL,
 42             OPEN_EXISTING,
 43             FILE_ATTRIBUTE_NORMAL,
 44             NULL
 45             );
 46         if (FileHandle== INVALID_HANDLE_VALUE)
 47         {
 48             Return = GetLastError();
 49             return Return;
 50         }
 51         break;
 52     case CREATE_FILE:
 53         FileHandle = CreateFile(FilePath,
 54             GENERIC_READ | GENERIC_WRITE | GENERIC_ALL,
 55             FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE,
 56             NULL,
 57             CREATE_NEW,
 58             FILE_ATTRIBUTE_NORMAL,
 59             NULL
 60             );
 61         if (FileHandle == INVALID_HANDLE_VALUE)
 62         {
 63             Return = GetLastError();
 64             return Return;
 65         }
 66         break;
 67     default:
 68         break;
 69     }
 70     switch (Mode)
 71     {
 72     case CREATE_FILE:
 73         CloseHandle(FileHandle);
 74         break;
 75     case DELETE_FILE:
 76         if (!DeleteFile(FilePath))
 77         {
 78             Return = GetLastError();
 79             return Return;
 80         }
 81         break;
 82     case MOVE_FILE:
 83         if (!MoveFile(FilePath,(LPCWSTR)Buffer))
 84         {
 85             return FILE_ERROR;
 86         }
 87         break;
 88     case QUERY_FILE:
 89         SHGetFileInfo(FilePath,
 90             NULL,
 91             &MyFileInfo,
 92             sizeof(MyFileInfo),
 93             SHGFI_TYPENAME | SHGFI_DISPLAYNAME | SHGFI_ATTRIBUTES);
 94     ///////////////////////////////////////////////////
 95     /*        
 96             typedef struct _SHFILEINFO
 97 
 98         {
 99 
100             HICON hIcon;//檔案的圖示控制程式碼
101 
102             int iIcon;//圖示的系統索引號
103 
104             DWORD dwAttributes;//檔案的屬性值
105 
106             char szDisplayName[MAX_PATH];//檔案的顯示名
107 
108             char szTypeName[80];//檔案的型別名
109 
110         } SHFILEINFO;
111     */
112     /////////////////////////////////////////////
113         FileInfo=(PFILE_INFO)HeapAlloc(GetProcessHeap(), 
114             HEAP_ZERO_MEMORY, 
115             sizeof(FILE_INFO));
116         if (!FileInfo)
117         {
118             return FILE_ERROR;
119         }
120         memset(FileInfo, 0, sizeof(FILE_INFO));
121         FileInfo->FileAttributes = MyFileInfo.dwAttributes;
122         FileInfo->FileName = (char *)HeapAlloc(GetProcessHeap(), 
123             HEAP_ZERO_MEMORY, 
124             sizeof(MyFileInfo.szDisplayName));
125         memcpy(FileInfo->FileName, 
126             MyFileInfo.szDisplayName, 
127             sizeof(MyFileInfo.szDisplayName));
128         FileInfo->TypeName = (char *)HeapAlloc(GetProcessHeap(),
129             HEAP_ZERO_MEMORY,
130             sizeof(MyFileInfo.szTypeName));
131         memcpy(FileInfo->TypeName,
132             MyFileInfo.szTypeName,
133             sizeof(MyFileInfo.szTypeName));
134         ((DWORD *)Buffer)[0] = (DWORD)FileInfo;
135         CloseHandle(FileHandle);
136         break;
137     case READ_FILE:
138         if ((!FilePointer)||(!Size))
139         {
140             return FILE_ERROR;
141         }
142         if (SetFilePointer(FileHandle,
143             (LONG)(FilePointer >> 32),
144             (LONG *)pTempPointer,
145             FILE_BEGIN
146             ) == HFILE_ERROR)
147         {
148             return GetLastError();
149         }
150         memset(Buffer,
151             0, 
152             *Size);
153         if (!ReadFile(FileHandle,
154             (LPVOID)Buffer,
155             *Size,
156             Size,
157             NULL))
158         {
159             return GetLastError();
160         } 
161         CloseHandle(FileHandle);
162         break;
163     case WRITE_FILE:
164         if ((!FilePointer) || (!Size))
165         {
166             return FILE_ERROR;
167         }
168         if (SetFilePointer(FileHandle,
169             (LONG)(FilePointer >> 32),
170             (LONG *)pTempPointer,
171             FILE_BEGIN
172             ) == HFILE_ERROR)
173         {
174             return GetLastError();
175         }
176         if (!WriteFile(FileHandle,
177             (LPCVOID)Buffer,
178             *Size,
179             Size,
180             NULL))
181         {
182             return GetLastError();
183         }
184     default:
185         return FILE_ERROR;
186     }
187     return FILE_SUCCESS;
188 }
189 DWORD IfFile(DWORD Return)
190 {
191     switch (Return)
192     {
193     case FILE_SUCCESS:
194         return 1;
195     case FILE_ERROR:
196         return 0;
197     default:
198         return -1;
199     }
200 }
  1 //登錄檔操作的封裝函式
  2 #include "windows.h"
  3 
  4 #define DUQV 0
  5 #define MEIJVZIJIAN 1
  6 #define MEIJVJIANXIANG 2
  7 #define PANDUANCUNZAI 3
  8 //讀取登錄檔的指定鍵的資料(Mode:0-讀鍵值資料 1-牧舉子鍵 2-牧舉指定鍵項 3-判斷該鍵是否存在)
  9 int ReadReg(HKEY MainKey, LPCTSTR SubKey, LPCTSTR Vname, DWORD Type, char *szData, LPBYTE szBytes, DWORD lbSize, int Mode)
 10 {
 11     HKEY hKey;
 12     int  iResult = 0;
 13     char KeyName[32], ValueSz[MAX_PATH], ValueTemp[MAX_PATH];
 14     DWORD szSize, KnSize, dwIndex = 0;
 15     memset(KeyName, 0, sizeof(KeyName));
 16     memset(ValueSz, 0, sizeof(ValueSz));
 17     memset(ValueTemp, 0, sizeof(ValueTemp));
 18     if (RegOpenKeyEx(MainKey,SubKey,0,KEY_READ,&hKey)!=ERROR_SUCCESS)
 19     {
 20         return -1;
 21     }
 22     switch (Mode)
 23     {
 24     case DUQV:
 25         switch (Type)
 26         {
 27         case REG_SZ:
 28         case REG_EXPAND_SZ:
 29             szSize = sizeof(ValueSz);
 30             if (RegQueryValueEx(hKey,Vname,NULL,&Type,(LPBYTE)ValueSz,&szSize)==ERROR_SUCCESS)
 31             {
 32                 return -1;
 33             }
 34             break;
 35         case REG_MULTI_SZ:
 36             szSize = sizeof(ValueSz);
 37             if (RegQueryValueEx(hKey,Vname,NULL,&Type,(LPBYTE)ValueSz,&szSize)==ERROR_SUCCESS)
 38             {
 39                 return -1;
 40             }
 41             break;
 42         case REG_BINARY:
 43                 szSize = lbSize;
 44                 if (RegQueryValueEx(hKey,Vname,NULL,&Type,szBytes,&szSize)==ERROR_SUCCESS)
 45                 {
 46                     return -1;
 47                 }
 48                 break;
 49          }
 50         break;
 51     case MEIJVZIJIAN:
 52         while (1)
 53         {
 54             memset(ValueSz, 0, sizeof(ValueSz));
 55             szSize = sizeof(ValueSz);
 56             if (RegEnumKeyExA(hKey,dwIndex++,ValueSz,&szSize,NULL,NULL,NULL,NULL)!=ERROR_SUCCESS)
 57             {
 58                 break;
 59             }
 60             wsprintf((LPWSTR)ValueTemp, L"[%s]\r\n", ValueSz);
 61             strcat(szData, ValueTemp);
 62             iResult = -1;
 63         }
 64         break;
 65     case MEIJVJIANXIANG:
 66         while (1)
 67         {
 68             memset(KeyName, 0, sizeof(KeyName));
 69             memset(ValueSz, 0, sizeof(ValueSz));
 70             memset(ValueTemp, 0, sizeof(ValueTemp));
 71             KnSize = sizeof(KeyName);
 72             szSize = sizeof(ValueSz);
 73             if (RegEnumValue(hKey,dwIndex++,(LPWSTR)KeyName,&KnSize,NULL,&Type,(LPBYTE)ValueSz,&szSize)!=ERROR_SUCCESS)
 74             {
 75                 break;
 76             }
 77             switch (Type)
 78             {
 79             case REG_SZ:
 80                 wsprintf((LPWSTR)ValueTemp, L"%-24s %-15s %s \r\n", KeyName, "REG_SZ", ValueSz);
 81                 break;
 82             case REG_EXPAND_SZ:
 83                 wsprintf((LPWSTR)ValueTemp, L"%-24s %-15s %s \r\n", KeyName, "REG_EXPAND_SZ", ValueSz);
 84                 break;
 85             case REG_DWORD:
 86                 wsprintf((LPWSTR)ValueTemp, L"%-24s %-15s 0x%x(%d) \r\n", KeyName, "REG_DWORD", ValueSz, int(ValueSz));
 87                 break;
 88             case REG_MULTI_SZ:
 89                 wsprintf((LPWSTR)ValueTemp, L"%-24s %-15s \r\n", KeyName, "REG_MULTI_SZ");
 90                 break;
 91             case REG_BINARY:
 92                 wsprintf((LPWSTR)ValueTemp, L"%-24s %-15s \r\n", KeyName, "REG_BINARY");
 93                 break;
 94             default:
 95                 break;
 96             }
 97             lstrcat((LPWSTR)szData, (LPWSTR)ValueTemp);
 98             iResult = 1;
 99         }
100         break;
101     case PANDUANCUNZAI:
102         iResult = 1;
103         break;
104     default:
105         break;
106     }
107     RegCloseKey(MainKey);
108     RegCloseKey(hKey);
109     return iResult;
110 }

 

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