Newly discovered Android malware has been found preinstalled on several Android tablet models, allowing it to tamper with any mobile app launched on the device. 

Antivirus provider Kaspersky discovered the malware, dubbed “Keenadu,” which the company has detected on over 13,000 devices in Europe, Japan, Brazil, and elsewhere.

In some cases, the malware has been found in the tablets’ firmware, indicating that someone in the supply chain secretly loaded the malicious code. “In this variant, Keenadu is a fully functional backdoor that provides the attackers with unlimited control over the victim’s device,” Kaspersky warns.