VB Blog

Registration for VB2018 now open!

Posted by   Martijn Grooten on   May 8, 2018

Registration for VB2018, the 28th International Virus Bulletin conference, is now open, with an early bird rate available until 1 July.

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RSA 2018: the good, the bad, the ugly, the great and the fantastic

Posted by   Martijn Grooten on   May 1, 2018

In April, VB's Martijn Grooten attended the RSA Expo in San Francisco. He shares his views on the expo and the industry.

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Standalone product test: Kaspersky Security for Microsoft Office 365

Posted by   Martijn Grooten on   Apr 30, 2018

There are a number of security solutions on the market that are designed to increase the default protection provided by Office 365. One such product is the newly launched Kaspersky Security for Microsoft Office 365. Virus Bulletin was commissioned to measure the effectiveness of the Kaspersky product compared to the Office 365 baseline protection.

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GravityRAT malware takes your system's temperature

Posted by   Martijn Grooten on   Apr 27, 2018

The GravityRAT malware, discovered by Cisco Talos researchers, gives some interesting insight into modern malware development.

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$150k in cryptocurrency stolen through combined BGP-DNS hijack

Posted by   Martijn Grooten on   Apr 25, 2018

A BGP hijack was used to take over some of Amazon's DNS infrastructure, which was then used to serve a phishing site to users of the MyEtherWallet service.

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Security-focused routers may help to mitigate IoT threats

Posted by   Martijn Grooten on   Apr 24, 2018

Various security companies are offering security-focused routers. This is a good trend and may help mitigate a lot of the issues that come with the IoT.

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The road to IPv6 is generally smooth but contains a few potholes

Posted by   Virus Bulletin on   Apr 23, 2018

Most of the switch from IPv4 to IPv6 will happen seamlessly. But we cannot assume it won't introduce new security issues.

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New paper: Powering the distribution of Tesla stealer with PowerShell and VBA macros

Posted by   Martijn Grooten on   Apr 19, 2018

Since their return four years ago, Office macros have been one of the most common ways to spread malware. Today, we publish a research paper which looks in detail at a campaign in which VBA macros are used to execute PowerShell code, which in turn downloads the Tesla information-stealing trojan.

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VB2017 paper: Android reverse engineering tools: not the usual suspects

Posted by   Martijn Grooten on   Apr 18, 2018

Within a few years, Android malware has grown from a relatively small threat to a huge problem involving more than three million new malware samples a year. Axelle Apvrille, one of the world's leading Android malware researchers, will deliver a workshop on Android reverse engineering at VB2018 in Montreal this October. Last year, Axelle presented a paper at VB2017 on some of the less common tools that can be used to reverse engineer Android malware. Today, we publish both the paper and the recording of Axelle's presentation.

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Patch early, patch often, but don't blindly trust every 'patch'

Posted by   Martijn Grooten on   Apr 16, 2018

Compromised websites are being used to serve fake Flash Player uploads that come with a malicious payload.

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Search blog

Is publishing your employees' email addresses such a big deal?

Beware of a false sense of security.
Beware of a false sense of security. Security blogger Graham Cluley points to hypocrisy in a KPMG press release in which it criticises FTSE 350 companies for 'leaking data that can… https://www.virusbulletin.com/blog/2013/07/publishing-your-employees-email-addresses-such-big-deal/

Compromised Yahoo! accounts continue to spread Android malware

Problem likely to be on Yahoo!'s side.
Problem likely to be on Yahoo!'s side. In recent weeks, we have noticed an uptick in the amount of spam sent from compromised Yahoo! accounts; we have reasons to believe the… https://www.virusbulletin.com/blog/2013/06/compromised-yahoo-accounts-continue-spread-android-malware/

Vulnerabilities could trigger payload in emails upon receiving or opening

Flaws in IBM Notes and Exim/Dovecot easy to mitigate.
Flaws in IBM Notes and Exim/Dovecot easy to mitigate. Two recently discovered vulnerabilities in mail processing software could give an attacker access to a targeted system without… https://www.virusbulletin.com/blog/2013/05/vulnerabilities-could-trigger-payload-emails-upon-receiving-or-opening/

Different focus on spam needed

What happens before the filter doesn't matter too much.
What happens before the filter doesn't matter too much. It is surprisingly difficult to get accurate figures for the amount of spam that is sent globally, yet everyone agrees that… https://www.virusbulletin.com/blog/2013/04/different-focus-spam-needed/

Weak cryptography keys allow others to add valid DKIM signatures to fake emails

512-bit key cracked within 72 hours.
512-bit key cracked within 72 hours. A Florida-based mathematician has caused a stir in the email community by adding a valid DKIM signature for google.com to an email after… https://www.virusbulletin.com/blog/2012/10/weak-cryptography-keys-allow-others-add-valid-dkim-signatures-fake-emails/

Cybercriminals offering service flooding email, phone and SMS

DDoS-type attack could seriously disrupt business.
DDoS-type attack could seriously disrupt business. A new service is being offered on underground forums where between 25,000 and 100,000 emails are being sent to an email account… https://www.virusbulletin.com/blog/2012/07/cybercriminals-offering-service-flooding-email-phone-and-sms/

New RFC describes best practices for running DNS-based lists

DNSBL users advised to avoid those lists that charge for delisting.
DNSBL users advised to avoid those lists that charge for delisting. A new RFC document has been published that describes the best operational practices for the use of DNS-based… https://www.virusbulletin.com/blog/2012/01/new-rfc-describes-best-practices-running-dns-based-lists/

New RFC grants DKIM improved status

Email signing method now 'Draft Standard'.
Email signing method now 'Draft Standard'. The Internet Engineering Task Force (IETF) has published a new RFC describing the DKIM protocol which sees its status advance from… https://www.virusbulletin.com/blog/2011/09/new-rfc-grants-dkim-improved-status/

Windows Help Files used in targeted attacks

Files with code-executing properties attached to emails.
Files with code-executing properties attached to emails. Researchers at Symantec have discovered Windows Help Files being used in targeted attacks. Such help files, which use the… https://www.virusbulletin.com/blog/2011/09/windows-help-files-used-targeted-attacks/

Researchers find email used in RSA hack

Email with malicious attachment uploaded to online scanning service
Email with malicious attachment uploaded to online scanning service Researchers at F-Secure have managed to obtain the file used in the targeted attack against security vendor RSA… https://www.virusbulletin.com/blog/2011/08/researchers-find-email-used-rsa-hack/

Hotmail beefs up security with stricter password policy

'My friend has been spammed' button also welcomed by experts.
'My friend has been spammed' button also welcomed by experts.Microsoft's free webmail service Hotmail has introduced some new features which should make it less likely for its… https://www.virusbulletin.com/blog/2011/07/hotmail-beefs-security-stricter-password-policy/

'Job application' contains malicious attachment

$150,000 lost via banking trojan.
$150,000 lost via banking trojan. An unidentified US company has learned the hard way that email attachments - even to those that appear to be solicited - may contain malware. The… https://www.virusbulletin.com/blog/2011/01/job-application-contains-malicious-attachment/

ARF published as IETF standard

Abuse report format helps auto-handling of email complaints
Abuse report format helps auto-handling of email complaints ARF (Abuse Reporting Format) has been approved by the IETF as an Internet standard. ARF is a format used to send… https://www.virusbulletin.com/blog/2010/09/arf-published-ietf-standard/

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