Facebook has taken down a scam targeting a large number of users that was designed to spread spam through user accounts. The scam was identified after multiple cartoon-style images portraying stereotypical relationship scenarios were shared in high q…
Written by Adolf St?eda and Jan Neduchal
Phishing is a long-standing social engineering technique used by cybercriminals to trick people into giving up sensitive information such as credit card details and login credentials. It can come in many forms, including telephone phishing, smishing …
In September 2016, Twitter, CNN, Spotify, and many others were knocked offline by the biggest DDoS attack in history. Today we know it by the name Mirai, but no one would have imagined at the time that this attack was coming from a herd of Internet of …
After publishing our story about pre-installed malware on Android devices, we continued to analyze the firmware images of cheap Android devices. It is a rather sad endeavour, as our statistics put pre-installed malware as one of the top infection vecto…
Authors: Martin Hron and David Jursa
Authored by Alena Nohová & Vlad Iliushin
Microsoft included Remote Desktop Protocol (RDP) with its offerings for the first time in 1996. Since then, cybercriminals have been trying, sometimes with success, to hack into machines via this protocol and we’ve seen countless RDP attacks done by di…
written by Jakub Kroustek, Vladislav Iliushin, Anna Shirokova, Jan Neduchal and Martin Hron
Disclaimer: Analysis of the server content and samples was done on Thursday, September 20th. Follow the Avast Blog for further updates.&nbs…
There’s a secret war happening under the noses of hundreds of millions of online users, and it’s war on a grand scale because so many players are involved. Armies of cybercriminals, consisting of everything from solo marauders to frighteningly …