VB Blog

Avast to present technical details of CCleaner hack at VB2017

Posted by Martijn Grooten on Oct 2, 2017

The recently discovered malicious CCleaner version has become one of the biggest security stories of 2017. Two researchers from Avast, the company that had recently acquired CCleaner developer Piriform, will share the results of their investigations at VB2017 in Madrid this week.

Posted by Martijn Grooten on Oct 2, 2017

We preview the VB2017 paper by Kaspersky Lab researchers Juan Andrés Guerrero-Saade and Costin Raiu on fourth-party collection and its implications for attack attribution.

Posted by Martijn Grooten on Sep 29, 2017

We preview Patrick Wardle's VB2017 paper, in which the Synack researcher analyses the mysterious OSX/FruitFly malware by setting up a custom C&C server.

Posted by Martijn Grooten on Sep 28, 2017

More than 50 security industry experts will present conference papers to their peers at VB2017 next week, and there are several papers on the programme with a certain newsworthiness. There is still time for cybersecurity journalists to apply for a press pass.

Posted by Martijn Grooten on Sep 25, 2017

We preview the VB2017 paper by Dhia Mahjoub (OpenDNS) and Jason Passwaters (Intel471) who combine an actor-centric and a network-centric approach to analysing bulletproof hosting operations.

Posted by Martijn Grooten on Sep 22, 2017

As has become tradition, VB2017 will once again see a security industry table football tournament. Register your team now for some great fun and adrenaline-filled matches in between sessions in Madrid!

Posted by Martijn Grooten on Sep 21, 2017

Greater Manchester Police is one of many organizations still running Windows XP on some of its systems. This is bad practice, but the case against running XP is far more subtle than we often pretend it is.

Posted by Martijn Grooten on Sep 21, 2017

Researchers from ESET have found a new way in which the FinSpy/FinFisher 'government spyware' can infect users, details of which they will present at VB2017 in Madrid.

Posted by Virus Bulletin on Sep 20, 2017

Activity monitoring by security products in general, and HTTPS traffic inspection in particular, are sensitive issues in the security community. There is a time and a place for them, VB's Martijn Grooten argues, but only when they are done right.

Posted by Martijn Grooten on Sep 19, 2017

We preview the VB2017 paper by Fortinet researcher Axelle Apvrille, in which she looks at some less obvious tools for reverse engineering Android malware.

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The malspam security products miss: Emotet, Ursnif, and a spammer's blunder

The set-up of the VBSpam test lab gives us a unique insight into the kinds of emails that are more likely to bypass email filters. This week we look at the malspam that was missed: a very international email with a link serving Emotet, an Italian Ursnif c…
This blog post was put together in collaboration with VB test engineers Adrian Luca and Ionuţ Răileanu. Virus Bulletin uses email feeds provided by Abusix and Project Honey Pot.… https://www.virusbulletin.com/blog/2019/02/malspam-security-products-miss-emotet-ursnif-and-spammers-blunder/

The malspam security products miss: banking and email phishing, Emotet and Bushaloader

The set-up of the VBSpam test lab gives us a unique insight into the kinds of emails that are more likely to bypass email filters. This week we look at the malspam that was missed: banking and email phishing, Emotet and Bushaloader.
This blog post was put together in collaboration with VB test engineers Adrian Luca and Ionuţ Răileanu. Virus Bulletin uses email feeds provided by Abusix and Project Honey Pot.… https://www.virusbulletin.com/blog/2019/02/malspam-security-products-miss-banking-and-email-phishing-emotet-and-bushaloader/

From Amazon to Emotet: a look at those phishing and malware emails that bypassed email security products

We see a lot of spam in the VBSpam test lab, and we also see how well such emails are being blocked by email security products. Recently some of the emails that bypassed security products included a broken Amazon phishing campaign, a large fake UPS campai…
This blog post was put together in collaboration with VB test engineers Adrian Luca and Ionuţ Răileanu. On this blog, we regularly look at those phishing and malware emails… https://www.virusbulletin.com/blog/2019/02/amazon-ups-emotet-formbook-and-lokibot-look-those-phishing-and-malware-emails-bypassed-email-security-products/

From HSBC to product descriptions: the malicious emails bypassing your filters

Using data from our VBSpam lab, we looked at the malicious emails that have been missed recently by a large number of email security products.
Over a one-week period earlier this month, the average email with a malicious attachment was almost three times as likely to bypass email security products than a spam email… https://www.virusbulletin.com/blog/2019/01/hsbc-product-descriptions-malicious-emails-bypassing-your-filters/

The spam that is hardest to block is often the most damaging

We see a lot of spam in the VBSpam test lab, and we also see how well such emails are being blocked by email security products. Worryingly, it is often the emails with a malicious attachment or a phishing link that are most likely to be missed.
This blog post was put together in collaboration with VB test engineers Adrian Luca and Ionuţ Răileanu. In a talk I gave at IRISSCON last year (the video of which you will find… https://www.virusbulletin.com/blog/2019/01/spam-hardest-block-often-most-damaging/

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

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.
If the Internet is, as is often said, held together with elastic bands and pieces of Sellotape, BGP is essentially a bunch of post-it notes that serve as traffic signs. BGP… https://www.virusbulletin.com/blog/2018/04/150-k-cryptocurrency-stolen-through-cominbed-bgp-dns-hijack/

Facebook helps you determine whether emails really came from its servers

On its website, Facebook now shows which emails it has sent you recently, thus helping you to determine which emails are real, and which should be discarded as phishing.
There are many good reasons to criticize Facebook for its collecting of our personal data, but the company also deserves credit for being at the forefront when it comes to online… https://www.virusbulletin.com/blog/2017/12/facebook-helps-you-determine-whether-emails-really-came-them/

Firefox 59 to make it a lot harder to use data URIs in phishing attacks

Firefox developer Mozilla has announced that, as of version 59 of the browser, many kinds of data URIs, which provide a way to create "domainless web content", will not be rendered in the browser, thus making this trick - used in various phishing campaign…
While a domain name is really just a short string, this string comes with a large amount of implicit metadata: the registration date; the IP address(es) the domain currently… https://www.virusbulletin.com/blog/2017/11/firefox-59-make-it-lot-harder-use-data-uris-phishing-attacks/

DMARC: an imperfect solution that can make a big difference

US Senator Ron Wyden has asked the Department of Homeland Security to implement DMARC. Martijn Grooten looks at what difference this could make for phishing attacks impersonating the US federal governent.
US Senator Ron Wyden has written a letter (pdf) to the Department of Homeland Security, urging the US government to implement DMARC to "ensure hackers cannot send emails that… https://www.virusbulletin.com/blog/2017/07/dmarc-imperfect-solution-can-make-big-difference/

VB2015 paper: Mobile Banking Fraud via SMS in North America: Who's Doing it and How

Though SMS may have been claimed dead many time, it is still very much alive, and quite popular among mobile phishers. At VB2015, Adaptive Mobile researcher Cathal Mc Daid presented a paper various mobile phishing campaigns targeting North American banks.
While SMS has been declared dead many times, the service remains frequently used - and abused. In a paper presented at VB2015 in Prague, Adaptive Mobile researcher Cathal Mc… https://www.virusbulletin.com/blog/2016/03/vb2015-paper-mobile-banking-fraud-sms-north-america-whos-doing-it-and-how/

VB2015 video: Making a dent in Russian mobile banking phishing

Sebastian Porst explains what Google has done to protect users from phishing apps targeting Russian banks.
Sebastian Porst explains what Google has done to protect users from phishing apps targeting Russian banks. In the last few years, mobile malware has evolved from a mostly… https://www.virusbulletin.com/blog/2015/12/video-making-dent-russian-mobile-banking-phishing/

Facebook launches platform for sharing of threat intelligence

Twitter, Yahoo! amongst early participants in 'ThreatExchange'.
Twitter, Yahoo! amongst early participants in 'ThreatExchange'. When I took my first steps in the security industry, I was surprised by just how much information was shared between… https://www.virusbulletin.com/blog/2015/02/facebook-launches-platform-sharing-threat-intelligence/

VB2014 paper: DMARC - how to use it to improve your email reputation

Terry Zink presents case study in which he describes setting a DMARC policy for Microsoft.
Terry Zink presents case study in which he describes setting a DMARC policy for Microsoft.Over the next few months, we will be sharing VB2014 conference papers as well as video… https://www.virusbulletin.com/blog/2014/11/paper-dmarc-how-use-it-improve-your-email-reputation/

Yahoo's DMARC policy wreaks havoc among mailing lists

Collateral damage in instruction to reject emails with invalid DKIM signatures.
Collateral damage in instruction to reject emails with invalid DKIM signatures. A change in Yahoo's DMARC policy has caused frustration among operators of many mailing lists and… https://www.virusbulletin.com/blog/2014/04/yahoo-s-dmarc-policy-wreaks-havoc-among-mailing-lists/

Latest spam filter test shows spam catch rates have bounced back

Spam catch rates improve, but performance on phishing lags behind that on other spam.
Spam catch rates improve, but performance on phishing lags behind that on other spam. Earlier this week we published the results of the 22nd VBSpam comparative spam filter test,… https://www.virusbulletin.com/blog/2012/11/latest-spam-filter-test-shows-spam-catch-rates-have-bounced-back/

PayPal spam leads to exploit kit

Clicking on links leads to Blackhole rather than phishing site.
Clicking on links leads to Blackhole rather than phishing site. Fake PayPal receipts were being spammed out this morning, with links leading to a version of the Blackhole exploit… https://www.virusbulletin.com/blog/2012/05/paypal-spam-leads-exploit-kit/

Significant rise in malicious spam and phishing

Over one quarter of malicious emails contain eight-year-old malware.
Over one quarter of malicious emails contain eight-year-old malware. Email security firm eleven has reported a significant rise in both malicious emails and phishing emails in the… https://www.virusbulletin.com/blog/2012/04/significant-rise-malicious-spam-and-phishing/

Significant rise in Chinese phishing sites

Phishers shown to care little about domain names.
Phishers shown to care little about domain names. In its latest 'Global Phishing Survey', the Anti-Phishing Working Group (APWG) reports a significant increase in phishing sites… https://www.virusbulletin.com/blog/2011/11/significant-rise-chinese-phishing-sites/

'Meta-phish' uses attached form to evade web filters

Landing page contains clear warning.
Landing page contains clear warning. A phishing email targeting Austrian credit card users evades web filters by using an attached HTML form, but thankfully the landing page on the… https://www.virusbulletin.com/blog/2011/10/meta-phish-uses-attached-form-evade-web-filters/

Google AdWords phishing campaign spreads

Users urged to login because of 'issues'.
Users urged to login because of 'issues'. A new phishing campaign that targets users of Google AdWords looks worryingly real, GFI reports. The phish begins with an email claiming… https://www.virusbulletin.com/blog/2011/10/google-adwords-phishing-campaign-spreads/

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