Since smartphone has become the primary platform to use the Internet. It has also become a target for external attacks like hacking, malware, spyware and other viruses etc.
Android is the leading mobile operating system which majority of the people are using. That’s why it also face the wrath of the majority of the viruses and hacks. The number of Android platform’s app affected from malicious malware in Google’s Play Store have been increasing day by day.
The cyber criminals develop such apps which have malware in them. It is a devious attempt to steal your personal data and bring harm to you. Many apps are developed by advertisers who stuff your mobile with pushy ads within the apps.
How an Android device get a “virus”?
It is quite clear that any non-native app must be downloaded from the Google app store.Every mobile app development company develops the mobile apps for their clients. The malware writers use various clever tricks to attract a user to download and install them. They continuously look for new ideas to pitch their apps to the users. The best policy against falling in the trap is to be double sure before downloading any app. It is better to download only those apps which have higher ratings and come verified source.
Apps designed to personalized your data, entertainment app and gaming app are mostly prone to be compromised and malign your data. Some of the most malicious apps in Play Store are BeanBot, Acnetdoor, Droidsheep, Gamex, Smack, Tetus, USBCleaver, and Uten etc.
BeanBot is a Trojan application which can send text messages and is controlled by a C&C – server.
Acnetdoor is also a Trojan file which opens a backdoor and sends the IP address of the device to a remote server.
Droidsheep can capture and hijack unencrypted web sessions.
Gamex opens a backdoor and installs different applications.
Smack is the spyware which is capable of multiple capabilities like upload user’s information, short messages, phone records, GPS location and date, hide its icon and intercepts messages.
Tetus is another Trojan which receives all the incoming texts and uploads them to a remote server. This app can also delete the SMS messages from the device and is able to send a list of all the installed apps to a remote server.
USBCleaver is one such app which can harm your computer too. If you connect your android device to your computer which does not have autorun disabled, it will gather multiple information from the computer like Google Chrome Password, IP Address, WiFi password, and default gateway etc.
Uten is a Trojan malware. When it is executed it reports the status of the device back to the source and then downloads a configuration file that contains a list of your android’s phone number.Afterward, the Uten sends SMS message to the phone number listed in the configuration file.
It can also perform multiple functions like modify device settings, download and install new packages, attempts to get roots etc.
Many times the malicious app slips into legitimate apps.
For example, recently a fake BBM app recently appeared in the Google Play Store and managed to get more than 1,00,00 downloads before getting removed.
The most common Android app will do at least of the following task-
1. Open a backdoor and download other malware functions in the phone.
2. Send messages to premium-rate numbers.
3. Record your phone calls and send it to the attackers.
4. Subscribe your phone to premium services.
5. Send your GPS coordinates, contact list to the attackers.
6. Take control of your phone.
7. Delivering push notification ads in the notification bar.
8. Insert “Icon ads” onto the phone’s screen. When the user touches the icon a specific web service is launched.
How to remove malicious apps from Android devices-
STEP 1 –
Step one includes removing the app from your android device. Here is a simple to-do list which can help you in uninstalling the malware app-
a. Go to the setting menu. Now click on Apps or Application Manager(depending on your device).
b. It will bring a list of installed apps, involving the malicious app too. Click on the app.
c. After clicking the app it will show the App info screen. If the app is running currently then press the force stop button.
Now first tap on the clear cache to remove the cache.
After that, click on clear data button to remove the app data from your phone.
At last click on the uninstall button to remove the malicious app completely.
STEP 2 – There are various anti-malware apps like 360 Security, Avira Antivirus Security, Antivirus and Mobile Security by TrustGo Avast mobile security, AVG Antivirus security, and CM Security. You can use to anyone app to remove the effect of malware apps.
STEP 3 (Optional) –
The recent cyber crimes are infecting the routers for some malicious redirections. If you restore the router to factory settings then it will remove the malicious redirections. But you will need to reconfigure it again according to your needs.
When you restore the router following changes occur-
a. Any firewall setting.
b. Wi-Fi username and password.
c. Router username and password.
d. Internet Service Provider username and password.
e. Any configuration changes you have made earlier.