Facebook has sued two makers of fraudulent Android apps. These apps infected users' smartphones with malware, which attempted to collect advertising money from Facebook.

Because of the malware, advertisements from Facebook's advertising network were continuously clicked on automatically. The app makers were then automatically paid out because the advertisement was activated.

The apps presented themselves as simple software, for example to clean up the memory of your phone or to extend the battery life. The malware also presented itself as a virus scanner and notebook.

The malware was offered in the Google Play Store. Some of the applications can still be found in the app store.

Facebook has suspended both app makers from its advertising platform and has reimbursed the affected advertisers in the network.

It is the first time that the company has been following such malware apps in a lawsuit. It is possible that the company hopes to deter other developers.