There are many ways a smartphone could be infected with malware. However, the user must be able to recognize the warning signs so that they can act as quickly as possible.

Signs that indicate the presence of malware
There are many signs that can indicate the presence of malware on device , however the four most common are the following:
- Your battery is draining much faster than usual.
- You see apps you don't recognize on phone .
- You constantly see ads, no matter which app you use.
- You install an app and then the icon immediately disappears.
How will you protect yourself?
There are some simple steps you can follow in case you think your smartphone has been infected with malware or you just want to be sure of the security of your device.
First, you should keep your device up to date. Experts say that regularly updating your smartphone can protect it from attacks, but even if it's already infected with malware, it may contain patches that will stop the malware from spreading further.
Next, check the permissions that the apps you download are requesting. For example, a gaming app doesn't need access to your messages. If it's asking for it, it's probably something malicious.
Remove apps that seem suspicious. Removing an app is an easy process. However, many apps that contain malware develop methods that make it difficult to remove them from a device. If you're facing this issue, do a search to see what other users.

You can also install antivirus apps. Since these services have access to key parts of your device to detect any anomalies, you should choose a trusted app. It is also best to choose the paid version if possible so that you have all the features available. Some good antivirus options include ESET, Malwarebytes, Norton, Lookout , and Bitdefender.
Finally, avoid downloading Android from third-party app stores. These apps are not subject to Google and can more easily hide malware.
