VB Blog

VB2018 paper: Draw me like one of your French APTs – expanding our descriptive palette for cyber threat actors

Posted by   Martijn Grooten on   Jan 7, 2019

Today, we publish the VB2018 paper by Chronicle researcher Juan Andres Guerrero-Saade, who argues we should change the way we talk about APT actors.

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Book Review: Cyber Wars

Posted by   Martijn Grooten on   Dec 19, 2018

VB Editor Martijn Grooten reviews Charles Arthur's Cyber Wars, which looks at seven prominent hacks and attacks, and the lessons we can learn from them.

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VB2018 paper: Office bugs on the rise

Posted by   Martijn Grooten on   Dec 14, 2018

At VB2018 Sophos researcher Gábor Szappanos provided a detailed overview of Office exploit builders, and looked in particular at the widely exploited CVE-2017-0199. Today we publish his paper and release the video of his presentation.

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VB2018 video: The Big Bang Theory by APT-C-23

Posted by   Martijn Grooten on   Dec 12, 2018

Today, we release the video of the VB2018 presentation by Check Point researcher Aseel Kayal, who connected the various dots relating to campaigns by the APT-C-23 threat group.

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VB2019 London - join us for the most international threat intelligence conference!

Posted by   Martijn Grooten on   Dec 11, 2018

VB calls on organisations and individuals involved in threat intelligence from around the world to participate in next year's Virus Bulletin conference.

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VB2018 paper: Tracking Mirai variants

Posted by   Martijn Grooten on   Dec 7, 2018

Today, we publish the VB2018 paper by Qihoo 360 researchers Ya Liu and Hui Wang, on extracting data from variants of the Mirai botnet to classify and track variants.

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VB2018 paper: Hide'n'Seek: an adaptive peer-to-peer IoT botnet

Posted by   Martijn Grooten on   Dec 6, 2018

2018 has seen an increase in the variety of botnets living on the Internet of Things - such as Hide'N'Seek, which is notable for its use of peer-to-peer for command-and-control communication. Today, we publish the VB2018 paper by Bitdefender researchers Adrian Șendroiu and Vladimir Diaconescu, who studied the Hide'N'Seek IoT botnet. We also release the recording of their presentation.

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New paper: Botception: botnet distributes script with bot capabilities

Posted by   Martijn Grooten on   Dec 4, 2018

In a new paper, Avast researchers Jan Sirmer and Adolf Streda look at how a spam campaign sent via the Necurs botnet was delivering the Flawed Ammyy RAT. As well as publishing the paper, we have also released the video of the reseachers' VB2018 presentation on the same topic.

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VB2018 video: Behind the scenes of the SamSam investigation

Posted by   Martijn Grooten on   Nov 29, 2018

Today we have published the video of the VB2018 presentation by Andrew Brandt (Sophos) on the SamSam ransomware, which became hot news following the indictment of its two suspected authors yesterday.

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VB2018 video: Foreverdays: tracking and mitigating threats targeting civil society orgs

Posted by   Martijn Grooten on   Nov 28, 2018

Today, we publish the video of the VB2018 presentation by CitizenLab researchers Masashi Nishihata and John Scott Railton, on threats faced by civil society.

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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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