Author Archives: Avast Blog

Avast Browser Cleanup at work

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Does this internet browser window look familiar to you? If so, you may be the victim of unwanted multiple browser toolbars. These browser add-ons have become a real problem in the last couple of years. Unfortunately, much free software nowadays comes with some unwanted add-ons; in most cases a so-called browser toolbar is installed. Many […]

Banker Omnia Vincit – A tale of signed Brazilian bankers

Let us present the long-term analysis of malware which was designed to steal credentials from more than 25 largest banking and payment systems in Brazil. The unique features of this banking malware include the usage of valid digital certificates, 3 years of evolution and stealing credentials from e-commerce admin pages. This feature opens doors for […]

Analysis of Chinese attack against Korean banks

In this blog post, we will look at the attack originating from hxxp://www.spc.or.kr/ and targeting several major Korean banks. The site, spc.or.kr, is a legitimate Korean website which belongs to Korea Software Property Right Council (SPC). After opening the site and showing its source code, we looked into the included script /js/common1.js. This script includes […]

Granny Scams target senior citizens

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The “Jamaican lottery scam,” also known as advanced-fee fraud, is made up of scam artists that trick people, mostly senior citizens, out of their money with a false notification of a lottery winning, inheritance or Publisher Clearing House sweepstakes prize. In these “granny scams”, the fraudsters convince the victim to send money in order to […]

We are looking for another Queen/Kings of AVAST FREEks to join the AVAST team :)

Part time job for a social media agent   Do you blog, comment, respond, post, chat, like, re-tweet, add to circles, pin…? Do you monitor what’s hot on social media in your language? Do you have 2 hours a day that you can fully dedicate to avast! social media? Can you be the eyes and […]

How do I get rid of annoying toolbars?

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Question of the week:  A toolbar suddenly appeared in my browser. I tried to uninstall it through the Control Panel, but it’s still there. How can I get rid of it? Have you installed free software lately? Sometimes toolbars and other unwanted add-ons are included in free downloads. Most of the time, but not always, […]

Mobile Drive-By Malware example

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Several days ago we received a complaint about javascrpt.ru. After a bit of research, we found that it tries to mimic ajax.google.com and jquery, but the code is an obfuscated/packed redirector. After removing two layers of obfuscation, we found a list of conditions checking visitors’ user Agent. From these conditions. we got a clue and […]

How do I use the new Software Updater in avast 8?

Question of the week:  I just updated my avast to version 8. The new look is great! There’s a feature called Software Updater that looks interesting. How do I use it? Great question, and thanks for the compliment on avast! 8’s new look. To answer your question about the new avast! Software Updater, let me […]

My favorite avast! user feedback so far in 2013, from a ‘moonshiner’ in Wyoming

As most of our readers and fans know, we now protect more devices (PC, Mac, and Android) globally than any other antivirus provider. As our business model is such that our freemium software serves as our ‘advertising’ (we don’t do traditional advertising), and most of our users come to us via referrals, we receive quite […]

Sneaky little bastard

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It has been two or three months since I last blogged about Android malware. But that definitely doesn’t mean there aren’t any new threats. There are plenty! Here are two quick comparisons from the last two years: Growth of the malware problem of the platform in January 2012 compared with January 2013 is far from […]