According to the Annual Security Threat Report by a Antivirus company, mobile ransomware has increased by 450% from Q1 to Q4 in 2016 while mobile banking Trojan has shown an increase of 110%. This reports alarms about the threats available in mobile environment. Report only echo the fact that Android phones are a easy victim of malware and attacks and is continuously growing. The fact is that most of users are not even aware that their device has been hacked and is being used for other nefarious purposes. There are some signs that will help you detect if your phone is actually infected with a virus or malware.
if your device remains hot most of the time for no reason, a virus infection could be the most probable culprit.Mobile phone get overheated while playing games, constant Internet browsing, charging or non-stop calling but if it heated without these then there is suspicion.
Sudden or unexplainable usage of mobile data
When a virus infects your phone, it does not still idle; well, not forever. Android viruses and other mobile malware act based on the commands they receive from their creator (the attacker). For this, they require an active Internet connection. Internet is also needed for the malware to carry out other activities like stealing user data and sending it to the attacker, displaying fake pop-up ads, and so on. For obvious reasons having a malware hiding on your device means your mobile data usage will increase for a reason that is not known to you. So, if this happens, it is a good sign that your mobile device is infected.
Your phone send SMSs or makes calls by itself that you have no idea about
If no one else is using your phone and you notice unexplainable calls made from your phone (or SMSs sent), then you can suspect a possible virus infection. Most mobile viruses are designed to make calls and send SMSs from the infected device.
Battery drains faster than normal
Viruses constantly keep running in the background without giving away their presence and this eats up the battery.Most Android phones with good battery backup. but if your device’s battery is drying faster than usual even with normal usage,this can be mobile virus infection.
Mobile phones lose on the performance score with time and if get stuffed with apps over time.But, if you are using all necessary steps to optimize performance and still experiences lags and slowdowns, then a virus infection could be blamed for it after all.
Unfamiliar apps show up on your phone
If you notice apps which you don’t remember installing on your device, then there are high chances of your phone being infected with a virus as most mobile viruses are programmed to install other apps (mostly malicious) on the infected device so that they can work together to mess up your happiness.
What to do?
If you find your Android phone is suffering from one or more of the signs listed above, then install a mobile antivirus app and run a complete virus scan.
Never install apps from third-party app stores. Only trust official sources such as Google Play and App Store.
Do not click on pop-up ads that come up on your device while browsing websites. Clicking them might take you to an infected website or drop a virus on your phone.
Do not click on links or download attachments received from unexpected, unwanted, or unknown emails. Follow this practice even with messages received as an SMS or over WhatsApp.
On your Android phone, ensure the ‘Unknown Sources’ setting is checked out. This will prevent third-party, unofficial apps from getting installed on your phone.