Christmas time is essentially connected with buying presents. There’s a lot of stuff to be done and a lot of opportunities to buy a present in an e-shop to save time. Who doesn’t know someone who buys a Christmas gift online? The malware authors know and are very keen to take advantage of it. We […]
It’s not surprising that scared people are the most vulnerable to attacker’s traps, and there is no reason to think it will work differently with computer users. Using this psychology, cybercrooks show an unaware victim an alert page claiming to have found that banned pornography was viewed or stored on their computer. The message goes […]
In our blog, we wrote several times about various types of Ransomware, most recently about CryptoLocker. In most cases, ransomware has pretended to be a program installed into a victim’s computer by the police. Because of some alleged suspicious activities found on the user’s computer, ransomware blocks the user from using the computer and demands […]
In recent days, the avast! Virus Lab has observed a high activity of malware distributed through exploit kits. Most cases of infection are small websites which usually provide adult entertainment, but there was also news about one of the top 300 visited websites being infected. Infection chains ended dropping a final payload in a form […]
Question of the week: I have read frightening stories about CryptoLocker locking computers. I don’t have $200 to pay blackmailers for my own files. How do I protect myself from getting attacked? Does avast! protect from CryptoLocker? “Avast! Antivirus detects all known variants of CryptoLocker thanks to our automated processing and CommunityIQ,” said Pavel […]
Malvertising is an abbreviation of malicious advertising and means that legitimate sites spread malware from their infected advertisement systems. There were many malvertising campaigns in last few years, some of them confirmed even on big sites like The New York Times, but most of them go unnoticed because they are well hidden and served only […]
This question, from a small-site owner with tens or hundreds of visitors per day, is an unfortunate but all too familiar one. One morning I started getting emails from my customers complaining that their antivirus reported my site as infected and won’t let them in. It must be some mistake because I don’t have an […]
In today’s world where malware evolves and develops rapidly, sharing security information is the key element for success. Companies which ignore this fact sooner of later suffer from the consequences of their bad decision. Malware researchers from all over the world regularly meet at various IT security conferences, where they learn from each other how […]
“Who wouldn’t want to have more likes on their Facebook page?” This is the motivation of a very trivial code to get more likes, but while other methods usually comprise of adding better content or advertising, this one is a bit easier, and much dirtier. Why not show the like button directly beneath your mouse […]
PHP.net users that would like to access php.net were unpleasantly surprised today. Google flagged the website as suspicious and users of the Google Chrome and Mozilla Firefox browsers saw a security warning when they tried to visit the website. According to the Google diagnostic page, suspicious content was found on php.net on October 23rd, 2013. […]