For several months now, we have been tracking malware called Guildma. Guildma is powerful combination of a RAT (remote access tool), spyware, password stealer and banker malware, mainly distributed via malicious attachments in phishing email campaigns. The cybercriminals behind Guildma have...
Intro Router exploit kits are nothing new in Brazil; a router exploit kit named GhostDNS was discovered by Netlab360 in the fall of 2018, showing more than 100K infected SOHO routers. Novidade and other variants of the GhostDNS exploit kit have also been pretty active this year, and Avast has...
Aggressive adware – on music, photo editing and fitness apps – just won’t go away, convincing users to install more apps. Using Avast’s mobile threat intelligence platform, apklab.io, we discovered 50 adware apps on the Google Play Store. The installations of the apps range...
Learn how to spot online scams like the ridiculous $26 Air Jordans. Social media networks are a great way for people to connect, keep in touch, update friends and family, but also a great place to spread fraudulent offers. Cybercriminals continuously take advantage of social media networks, like...
Our mobile threat intelligence platform flagged three beauty apps that have ugly consequences. Over 2 million devices have downloaded these apps. In February 2019, Avast’s mobile threat intelligence platform (MTIP), apklab.io, discovered a number of “selfie beauty apps” on the Google...
Will Coinhive’s end lead to the end of browser-based cryptomining and cryptojacking? Cryptojacking stole the limelight away from ransomware at the end of 2017, becoming a major cyberthreat that continued into 2018. On March 8, 2019 Coinhive, the service that enables websites around the...
Fake CCleaner app loaded with adware Recently, Avast has discovered that a new fake mobile CCleaner app has been published in the China Baidu App Store (百度手机助手) and it’s specified as Certified Official Version (官方版). This caught our eye because Avast hasn’t published any official versions...
We’re tracking a new cyberthreat that combines file formats to create a more versatile malware. Authored by: Luigino Camastra, Jan Širmer, Adolf Středa and Lukáš Obrdlík Since August 2018, we have been monitoring a new malware family we’re calling Rietspoof. Rietspoof is a new multi...
The program developer has issued a fix, and users should update immediately. Recently, an interesting vulnerability was discovered by French security researcher, Elliot Alderson, in the Android app ES File Explorer (version 4.1.9.7.4 and below). ES File Explorer is a file manager...
Avast experts walk you through next year’s most menacing IoT threats in part 1 of our 2019 predictions. A chain is only as strong as its weakest link. This is also true in the world of security. This year, we tracked a growing threat trend — that when just one device in a home or small...