Mobile malware evolution in 2025

Starting from the third quarter of 2025, we have updated our statistical methodology based on the Kaspersky Security Network. These changes affect all sections of the report except for the installation package statistics, which remain unchanged. To illustrate trends between reporting periods, we...

Keenadu Firmware Backdoor Infects Android Tablets via Signed OTA Updates

A new Android backdoor that's embedded deep into the device firmware can silently harvest data and remotely control its behavior, according to new findings from Kaspersky. The Russian cybersecurity vendor said it discovered the backdoor, dubbed Keenadu , in the firmware of devices associated with...

Divide and conquer: how the new Keenadu backdoor exposed links between major Android botnets

In April 2025, we reported on a then-new iteration of the Triada backdoor that had compromised the firmware of counterfeit Android devices sold across major marketplaces. The malware was deployed to the system partitions and hooked into Zygote – the parent process for all Android apps – to infect...