The functionality of SimBad can be summarized under three separate categories, including phishing, the ability to show advertisements, and exposure to secondary apps.
Only 23 apps had a 100 percent success rate with all malware samples.
Android warning - "Dangerous" Google Play Store apps used by millions, are you affected? A new analysis from Austrian antivirus testers AV-Comparatives claims that most AV apps on Android are ineffective, and some are downright frauds. "These updates will help us all provide a more unified and consistent look and feel for Google Play, allowing us to better showcase your apps and games and provide a higher quality user experience", concluded the blog for Android developers. Google notes that some apps will still be able to access your location after you hit the home button or turn off the display. It might have been harder to detect and stop because of that, as the infected apps are safe and legitimate if it weren't for the adware that managed to sneak past, not to mention that it wasn't out to steal personal data of users. Check Point also published a list containing the tainted apps showing package name, the app name and number of installations. They essentially installed the apps on an Android device and then automated the process to open a browser and download a malicious app to install it on the device. So to find effective antivirus products, AV-Comparatives suggests you stick with well-known, reputable vendors.
One unexpected twist: AV Comparatives found some anti-virus apps failed to add themselves to their own whitelist, which caused the app to flag itself as being malware.
"First of all, you need to at least try to see if the apps have real usage, if the apps have been rated and if the provider of the apps is trustworthy", Cipot said.
Many of these apps are created with the same developer making some of them have a similar interface instead of showing a fully running malware scanner. A lot of them haven't even upgraded to Android Oreo making the phones that have downloaded the apps vulnerable to attacks. In some cases, the apps are simply buggy, e.g. because they have poorly implemented a third-party engine. Majority reduce the efficiency of your phone, consume a lot of battery, annoy you with notifications and take up a lot of your storage.