Lukas Stefanko

ESET researchers uncover a new version of Android spyware used by the APT-C-23 threat group against targets in the Middle East

ESET research uncovers a malicious operation that both spies on victims and leaks their data

ESET researchers dissect an Android app that masquerades as an official COVID-19 contact-tracing app and encrypts files on the victim's device

ESET researchers detect a new way of misusing Accessibility Service, the Achilles’ heel of Android security

After being targeted by an Android DDoS app, ESET seized the opportunity to analyze the attack and to help put an end to it

ESET researchers discovered a year-long adware campaign on Google Play and tracked down its operator. The apps involved, installed eight million times, use several tricks for stealth and persistence.

ESET analysis breaks down the first known spyware that is built on the AhMyth open-source espionage tool and has appeared on Google Play – twice

ESET researchers discover a new Android ransomware family that attempts to spread to victims’ contacts and deploys some unusual tricks

ESET researchers discover fraudulent schemes piggybacking on the popularity of the face-modifying tool FaceApp, using a fake “Pro” version of the application as a lure