lockscreen

Vulnerabilities

Issued by: Blog Malwarebytes

A closer look at a tech support screen locker

In this blog post, we are going to take a closer look at some of the code that the most predominant family of tech support screen lockers are currently using to frustrate their victims. This, which is dubbed VinCE because of the Program folder it creates for itself, is compiled in Microsoft Intermediate Language (MSIL),…

Malware & Threats, Mobile Security

Issued by: Symantec Blog

Android.Lockscreen ransomware now using pseudorandom numbers

New variants of Android.Lockscreen are using pseudorandom passcodes to prevent victims from unlocking devices without paying the ransom. Previous versions of these threats locked the screen and used a hardcoded passcode, but analysts were able to reverse engineer the code to provide victims with the passcode to unlock their devices. Attackers have also combined a…