VB Blog

Throwback Thursday: You Are the Weakest Link, Goodbye!

Posted by Helen Martin on Jul 7, 2016

Passwords have long been a weak point in the security chain, despite efforts to encourage users to pick strong ones. 13 years ago, Martin Overton wrote an article highlighting the weakness and explaining why it is the human element that presents the biggest risk to computer security - something that rings as true today as it did 13 years ago.

Posted by Martijn Grooten on Jul 5, 2016

In a new paper published by Virus Bulletin, Sophos researcher Gabor Szappanos takes a look at the KeyBase keylogger, sold as a commercial product and popular among cybercriminals who use it in Office exploit kits.

Posted by Martijn Grooten on Jun 28, 2016

VB2016, the 26th International Virus Bulletin conference, is an excellent reason to go to Denver, Colorado in the first week of October. But there is another reason to come to Denver: BSides Denver, which will take place the day after VB2016, on Saturday 8 October 2016.

Posted by Virus Bulletin on Jun 13, 2016

In their VB2015 paper, Peter Kálnai and Jaromír Hořejší look at the current state of DDoS trojans forming covert botnets on unsuspecting systems. The paper provides a technical analysis of the most important malware families, focusing on infection methods, dynamic behaviour, C&C communication, obfuscation techniques, advanced methods of persistence and stealth, and elimination of rivals.

Posted by Helen Martin on Jun 2, 2016

This week, well known and universally respected industry guru Mikko Hyppönen celebrates his 25th anniversary of working at F-Secure (formerly known as Data Fellows). VB takes a look back in the archives at two articles published in 1994: an "insight" into the life and work of the then rising star of the anti-virus world, and a virus analysis penned by the man himself.

Posted by Helen Martin on Jun 1, 2016

Financial pressure can be a proactive and potentially very effective tool in making our computer ecosystems safer. By cleverly employing various trust metrics and technologies such as digital signing, watermarking, and public-key infrastructure in strategically selected places, we can encourage good behaviours and punish bad ones. In his VB2015 paper, Igor Muttik analyses and gives examples of technologies (certificates, credentials, etc.) to de-incentivize bad behaviours in several ecosystems (Windows, Android, iOS).

Posted by Martijn Grooten on May 26, 2016

Virus Bulletin has relaunched its security job vacancy service and added a new section, in which job seekers can advertise their skills and experience.

Posted by Helen Martin on May 26, 2016

In October 1994, a new multi-partite virus appeared, using some of the techniques developed by the Dark Avenger in Commander_Bomber. As if this were not enough, the One_Half virus could also encrypt vital parts of the fixed disk. Eugene Kaspersky provided a detailed analysis.

Posted by Martijn Grooten on May 9, 2016

Support scam pop-ups presented through malicious advertisements show that, next to vulnerable end points, gullible users remain an easy source of money for online criminals.

Posted by Martijn Grooten on May 6, 2016

Many websites put barriers in front of visitors who use the Tor network. If we want to make the web more accessible through Tor, we need to be honest about why this is done, rather than cry wolf about a dislike for privacy, Martijn Grooten says.

Previous1...4344454647...215Next

Search blog

VB2019 paper: Different ways to cook a crab: GandCrab Ransomware-as-a-Service (RaaS) analysed in depth

Though active for not much longer than a year, GandCrab had been one of the most successful ransomware operations. In a paper presented at VB2019 in London, McAfee researchers John Fokker and Alexandre Mundo looked at the malware code, its evolution and t…
Different ways to cook a crab: GandCrab ransomware-as-a-service (RaaS) analysed in depth Read the paper (HTML) Download the paper (PDF) Though active for not… https://www.virusbulletin.com/blog/2019/11/vb2019-paper-different-ways-cook-crab-gandcrab-ransomware-service-raas-analysed-depth/

Guest blog: TotalAV uncovers the world’s first ransomware

In a guest blog post by VB2019 Silver partner TotalAV, Matthew Curd, the software’s Technical Expert, considers the changes in the cybersecurity landscape.
In a guest blog post by VB2019 Silver partner TotalAV, Matthew Curd, the software’s Technical Expert, considers the changes in the cybersecurity landscape. Rediscovered in an… https://www.virusbulletin.com/blog/2019/09/guest-blog-totalav-uncovers-worlds-first-ransomware/

VB2018 video: Behind the scenes of the SamSam investigation

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.
Yesterday, a federal grand jury in the US unsealed an indictment charging two Iranians with being behind the SamSam ransomware. SamSam has been one of the most successful… https://www.virusbulletin.com/blog/2018/11/vb2018-video-behind-scenes-samsam-investigation/

VB2017 paper: Nine circles of Cerber

Cerber is one of the major names in the world of ransomware, and last year, Check Point released a decryption service for the malware. Today, we publish a VB2017 paper by Check Point's Stanislav Skuratovich describing how the Cerber decryption tool worked…
Earlier this week, we published the video of a VB2017 presentation on the Spora ransomware. Spora is hardly alone in this prominent threat type though, and one of the other major… https://www.virusbulletin.com/blog/2017/12/vb2017-paper-nine-circles-cerber/

VB2017 video: Spora: the saga continues a.k.a. how to ruin your research in a week

Today, we publish the video of the VB2017 presentation by Avast researcher Jakub Kroustek and his former colleague Előd Kironský, now at ESET, who told the story of Spora, one of of the most prominent ransomware families of 2017.
First discovered at the beginning of the year, the Spora ransomware has become one of of the most prominent ransomware families of 2017, especially in Russia, a region it appears… https://www.virusbulletin.com/blog/2017/12/vb2017-video-spora-saga-continues-k-how-ruin-your-research-week/

VB2017: nine last-minute papers announced

From attacks on Ukraine's power grid to web shells, and from car hacking to ransomware: we announce the first nine 'last-minute' papers on the VB2017 programme.
At Virus Bulletin we try not to follow the daily security hype, focusing instead on the bigger trends. This means that the topics covered on the VB2017 conference programme – the… https://www.virusbulletin.com/blog/2017/09/vb2017-nine-last-minute-papers-announced/

NoMoreRansom's first birthday demonstrates importance of collaboration

This week the NoMoreRansom project celebrated its first birthday. It has already helped many victims of ransomware with advice and tools and is an excellent example of collaboration between private and public partners in IT security.
This week, the NoMoreRansom project celebrates its first anniversary and can look back to subtle but important successes in the fight against ransomware. The advice from… https://www.virusbulletin.com/blog/2017/07/nomoreransoms-first-birthday-shows-importance-collaboration/

48 hours after initial reports, many mysteries remain around the latest ransomware/wiper threat

Whether you call it Petya, NotPetya, Nyetya or Petna, there are still many mysteries surrounding the malware that has been causing havoc around the world.
"What's in a name? that which we call a rose By any other name would smell as sweet" Shakespeare's philosophising can equally be applied to malware, and whether you call it… https://www.virusbulletin.com/blog/2017/06/48-hours-after-initial-reports-many-mysteries-around-latest-ransomwarewiper-threat-remain/

WannaCry shows we need to understand why organizations don't patch

Perhaps the question we should be asking about WannaCry is not "why do so many organizations allow unpatched machines to exist on their networks?" but "why doesn't patching work reasonably well most of the time?"
For the past few days, the world of Infosec on Twitter has tried to find as many ways as possible of saying "we told you so". To be fair, it's true – we did tell you so: for… https://www.virusbulletin.com/blog/2017/may/wannacry-shows-we-need-understand-why-organisations-dont-patch/

Modern security software is not necessarily powerless against threats like WannaCry

The WannaCry ransomware has affected many organisations around the world, making it probably the worst and most damaging of its kind. But modern security is not necessarily powerless against such threats.
We have become used to the idea of cybersecurity stories sometimes making the mainstream news, but the UK's newspapers across the spectrum, from broadsheets to tabloids, all… https://www.virusbulletin.com/blog/2017/may/modern-security-software-not-powerless-against-threats-wannacry/

Ransomware not a problem for half of businesses

According to a report by IBM Security, 70 per cent of businesses that are the victim of a ransomware attack end up paying the ransom. However, the report also suggests that a little over half of businesses manage to avoid getting infected at all, showing …
If you are wondering why ransomware continues to thrive, a recent study from IBM Security provides a simple explanation: 70 per cent of the ransomware-infected businesses they… https://www.virusbulletin.com/blog/2017/01/ransomware-not-problem-half-businesses/

Paper: Spreading techniques used by malware

In a new paper published by Virus Bulletin, Acalvio researcher Abhishek Singh discusses some of the techniques used by malware to increase its impact by spreading further.
Malware infections usually start with a user opening an attachment, visiting a link, or simply accessing an infected site with a vulnerable browser. But once malware has infected… https://www.virusbulletin.com/blog/2016/december/paper-spreading-techniques-used-malware/

VB2016 preview: Cryptography mistakes in malware

At VB2016, two talks will discuss mistakes made by malware authors in cryptographic implementations. Ben Herzog and Yaniv Balmas will present a paper in which they look at a number of these mistakes, while Malwarebytes researcher hasherezade will present …
"Don't roll your own crypto", software developers are often told: cryptography is hard and thus it is always safer to use a well-tested public library rather than writing your own… https://www.virusbulletin.com/blog/2016/september/vb2016-preview-presentations-cryptography-mistakes-malware/

Guest blog: Nemucod ransomware analysis

In a guest blog, Webroot researcher Jesse Lopez looks at another variant in the massive crop of malware that takes users’ files hostage: Nemucod ransomware.
In the run up to VB2016, we invited the sponsors of the conference to write guest posts for our blog. In the third of this series, Webroot's Jesse Lopez writes about the Nemucod… https://www.virusbulletin.com/blog/2016/september/guest-blog-nemucod-ransomware-analysis/

Romanian university website compromised to serve Neutrino exploit kit

The website of the Carol Davila University of Medicine and Pharmacy has been compromised to inject a hidden iframe into the site's source code that serves the Neutrino exploit kit and may infect visitors with ransomware.
This blog post was written by Martijn Grooten and Adrian Luca. Like every summer, millions of prospective students around the world have been taking entry exams for the… https://www.virusbulletin.com/blog/2016/07/romanian-university-website-compromised-serve-neutrino-exploit-kit/

Paying a malware ransom is bad, but telling people never to do it is unhelpful advice

The current ransomware plague is one of the worst threats the Internet has seen and it is unlikely to go away any time soon. But telling people to never pay the ransom is unhelpful advice.
I'm not usually one to spread panic about security issues, but in the case of the current ransomware plague, I believe that at the very least a sense of great concern is… https://www.virusbulletin.com/blog/2016/04/paying-malware-ransom-bad-telling-people-never-do-it-unhelpful-advice/

New tool helps ransomware victims indentify the malware family

The people behind the MalwareHunterTeam have released a tool that helps victims of ransomware identify which of more than 50 families has infected their system, something which could help them find a tool to decrypt their files.
Malware infections are never fun, but ransomware is particularly nasty and the plague doesn't seem likely to cease any time soon: new families are spotted almost daily. A small… https://www.virusbulletin.com/blog/2016/04/new-tool-helps-ransomware-victims-indentify-malware-family/

Researchers seek ransomware samples for their generic solution

VB2015 presentation to include demonstration of technique against recent samples.
VB2015 presentation to include demonstration of technique against recent samples. 'The scary hack that's on the rise' is how Wired's Kim Zetter described ransomware in an overview… https://www.virusbulletin.com/blog/2015/09/researchers-seek-ransomware-samples-their-generic-solution/

TorrentLocker spam has DMARC enabled

Use of email authentication technique unlikely to bring any advantage.
Use of email authentication technique unlikely to bring any advantage. Last week, Trend Micro researcher Jon Oliver (who presented a paper on Twitter abuse at VB2014) wrote an… https://www.virusbulletin.com/blog/2015/03/torrentlocker-spam-has-dmarc-enabled/

'RansomWeb' ransomware targets companies' databases

Encryption first added as a patch, key only removed when all backups are encrypted.
Encryption first added as a patch, key only removed when all backups are encrypted. Make backups, they said. Then you won't have to worry about ransomware, they said. Ransomware… https://www.virusbulletin.com/blog/2015/02/ransomweb-ransomware-targets-companies-databases/

« Previous 12 Next »