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Recent Articles

JUN30
Criminals Continue to Defraud and Extort Funds from Victims Using CryptoWall Ransomware Schemes

Internet Crime complaint Center (FBI)
JUN30
Last chance to register for VB2015 with an Early Bird discount

10% discount ends tonight. Today is the last chance to register for VB2015 with a 10% Early Bird discount. Although registration is likely to remain open right up until the start of the conference, the ticket price will revert to the full price for standard registrations (US$1895 + CZ VAT) tonight. You might want to take this opportunity to save yourself or your employer some money. (Student tickets remain available after tonight's deadline.) Should you have problems registering...

The Virus Bulletin
JUN29
Nominations opened for second Péter Ször Award

'Brilliant mind and a true gentleman' commemorated through annual award for technical security research. During VB2014 in Seattle, we presented the first annual Péter Ször Award to a group of ESET researchers for their work on 'Operation Windigo'. The award was set up to commemorate of the life and work of security researcher Péter Ször, who passed away in November 2013. Péter Ször contributed almost 40 articles to Virus Bulletin over the years, spoke at several VB conferences, and...

The Virus Bulletin
JUN26
VB2014 paper: Quantifying maliciousness in Alexa top-ranked domains

Paul Royal looks at malware served through the most popular websites. Though VB2014 took place nine months ago, most of the papers presented during the conference remain very relevant. Paul Royal's paper 'Quantifying maliciousness in Alexa top-ranked domains' is no exception. Large websites serving malware through direct compromises or through compromises of the ad networks they use (that being the subject of another VB2014 presentation) continue to make the news. Moreover, those...

The Virus Bulletin
JUN26
Latest spam filter test sees significant drop in catch rates

Despite a drop in catch rates, 15 products earn a VBSpam award, with four earning a VBSpam+ award. Spam is notoriously volatile and thus, while we like to make the news headlines with our tests as much as anyone, we would warn against reading too much into the fact that the percentage of spam missed by spam filters almost doubled in the most recent VBSpam test. In the test, which ran for 16 days in April and May, filters missed an average of 0.4% of emails — up from 0.18% in February...

The Virus Bulletin
JUN25
Throwback Thursday: KAOS on the Superhighway?

This Throwback Thursday, we turn the clock back to 1994, when KAOS4 was discovered on the Internet. A new virus has been found on the Internet — today, this is an unfortunate fact of everyday life, and unless the virus is particularly interesting, not even noteworthy. In July 1994, however, the discovery of KAOS4 on the Internet was big news and prompted the question: how great are the risks associated with Internet access? KAOS4 gained notoriety through its posting to the Internet...

The Virus Bulletin
JUN24
Paper: Using .NET GUIDs to help hunt for malware

Tool to extract identifiers incorporated into VirusTotal. The large number of new malware samples found each day hasn't made malware analysis an easier task, and researchers could use anything that helps them automate this task. Today, we publish a paper by Cylance researcher Brian Wallace, who looks at two globally unique identifiers (GUIDs) found in malware created using .NET, which can help link multiple files to the same Visual Studio project. He released a Python tool to safely...

The Virus Bulletin
JUN24
Steganoprague: a VB2015 competition & puzzle

Use your obfuscation and deobfuscation skills to win a prize during the VB2015 conference! "It is time for defenders to go on the offence," wrote Andreas Lindh in Virus Bulletin last year. Indeed, the distinction between defensive and offensive has become increasingly blurred in recent years. Today, we present 'Steganoprague': a competition that takes place both prior to and during VB2015, in which you need to combine both your defensive and offensive skills. Or, rather, both your...

The Virus Bulletin