Installing apps outside of the Google Play app store can increase the chance of a malware infection – malicious apps that take control of your device or work in the background by stealing your data.
See below the 5 main symptoms that your device may show if it is infected by some technological plague:
1. Bad battery life
Android users who don’t run many apps at the same time have a good idea of how long the battery should last.
The malware can drain its energy more quickly than usual due to adware, a spam program that shows users of the application an excessive amount of ads.
The continuous display of adware will significantly affect battery life.
Whether the malware hides in plain sight, pretending to be a regular application, or trying to stay hidden from the user, abnormal battery drainage can often indicate the presence of an Android infection.
2. Reject calls and interruptions
Mobile malware can affect incoming and outgoing calls. Discarded calls or strange interruptions during a conversation indicate the existence of malware.
Call your telephone operator (or file a complaint with Anatel) to determine if the dropped calls are her fault.
If you are not connected to your operator, it is possible that someone or something is trying to eavesdrop on conversations or trying to perform other suspicious activities.
3. Excessively expensive phone bills
Android malware usually infects devices and starts sending text messages (SMS) to unknown numbers.
Although the effects are easily seen on your phone bill, not all malware programs are obviously greedy.
Many of these programs can send few messages a month to avoid suspicion, or go down after a while.
If you have a post account, check your account regularly to prevent malware from consuming your plan.
4. Spikes in the Data Plan
Malware can be easily detected by analyzing your data plan – significant changes in your download or upload patterns can be a sign that someone or something has control over your device.
Setting monthly limits can help you find out if a device has been compromised by transmitting malware data. This will also help to avoid high phone bills if you are charged for extra traffic.
5. Compromised performance
Depending on the hardware specifications of the device, malware infection can cause serious performance problems as it attempts to read, write or transmit data from your smartphone.
Performance is yet another sign that malware may be present on your device. Check RAM (or CPU load can reveal the presence of malware that is actively working on the device.
Formatting your smartphone every 6 months can free your device from slowness and clear the device’s memory. Updates also tend to slow down devices.