If you are one of the 100 million Android users who have downloaded the app CamScanner by Google Play Store, delete it immediately.
ΣAccording to Kaspersky Labs researchers, the application, in fact, contains malware, with just a dangerous trojan.
According to Kaspersky's Igor Golovin and Anton Kivva, CamScanner has actually been a harmless application for years. Recently, however, one of the ad packages contained in the application also contains a library that runs spyware, including a trojan known as Necro.n.
Kaspersky detects this code as Trojan-Dropper.AndroidOS.Necro.n, which we noticed in some applications that are pre-installed on Chinese smartphones.
As the name implies, this code is Trojan Dropper. This means that the code that has, runs and executes an encrypted file contained in the application resources. This malware, in turn, is a Trojan Downloader that downloads more malware depending on what its creators have planned.
According to Kaspersky, CamScanner developers may not be aware of the presence of malware in their application. Kaspersky's researchers looked at a recent version of the app and found the malware there, and reported their findings to Google, and the app was immediately removed from the Google Play Store.
It is worth noting that recently it became known that more than 1.000 applications have managed to bypass the ban on access from Google's Android, to the personal data of users.