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11 things you can do to protect against ransomware, including Cryptolocker

11 things you can be doing to better protect your computers and data from ransomware such as Cryptolocker that is currently targeting businesses big and small.

The Less Thoughtful Phisher

Less innovative than the scam mails described in my previous articles (Phish to phry  and The Thoughtful Phisher II), there are those phish messages that suggest a problem with your account that they need you to log in to fix. (Of course, you aren’t really logging in to a legitimate site.) Mostly their appeal is

New Hesperbot targets: Germany and Australia

In September we informed about a new banking trojan called Hesperbot (detected as Win32/Spy.Hesperbot). The perpetrators responsible for the threat are still active – November has been particularly eventful. In this post, we’ll give an update on the situation and malware developments.

A buffet of 2014 security and privacy predictions

Have you been wondering what trends in security and privacy ESET researchers are predicting for 2014? The following is a sampling, a year-end snack plate if you will, featuring predictions from Aryeh Goretsky, Righard Zwienenberg, David Harley, Cameron Camp, Lysa Myers, and more.

Did you say “Advanced” Persistent Threats?

Once in a while we get to spend time analyzing malicious code that is not as widespread as other threats we’ve encountered. Here we analyze a targeted attack used in Taiwan and Vietnam – but is this ‘APT’ really that advanced?

The Thoughtful Phisher II

In the previous Thoughtful Phisher blog, we looked at some visual clues that should tip you off that a email from a ‘bank’ is not to be trusted. Just as interesting here, though, is the variety of social engineering gambits used by this wave of phish campaigns. It’s worth taking a closer look at some

Phish to phry: The Thoughtful Phisher Revisited…

[A much shorter version of this article appeared in the October 2013 Threat Radar Report as ‘The Thoughtful Phisher’. As these particular scam/spam campaigns don’t seem to be diminishing, however – indeed, some of the phishing techniques seem to be getting more sophisticated – I thought perhaps it was worth updating and expanding for a

Tech Support Scammers: Talking to a Real Support Team

It so happens that I live over 5,000 miles from the ESET North America office in San Diego, and so tend not to have water cooler conversations with the people located there. Of course, researchers working for and with ESET around the world maintain contact through the wonders of electronic messaging, but there are lots

Chronology of a Skype attack

By the middle of May, users around the world started to receive messages from their contacts through different instant-messaging applications, such as Skype and Gtalk – an attack that showed off how age-old techniques can ensnare thousands of users. Here, we analyze this attack.

Windows 8.1 – security improvements

A new white paper, titled Windows 8.1 Security – New and Improved, looks at the some of the most anticipated—and controversial—security features of this new “.1″ point release of Windows 8.

Five interesting facts about the Morris worm (for its 25th anniversary)

On November 2nd, 1988, the Morris worm was released by its author, and within 24 hours had caused damage across the world. It spread via the internet – and its release marked a new dawn for malicious software. Our five facts highlight what has changed since – and what hasn’t.

Tech support scam update: still flourishing, still evolving

[Update 30th October 2013: with regard to the ping gambit discussed below, please note that protection.com now responds to ICMP echo requests – in other words, if you now run the command “ping protection.com” you should now see a screen something like this: Note that this is perfectly normal behaviour for a site that responds

Nymaim: Browsing for trouble

We have already discussed how a system gets infected with Win32/Nymaim ransomware. In this blog post, we reveal a new infection vector, a study of the different international locker designs and ransom prices as well as a complete technical analysis of its communication protocol.

Is this how Indonesia topped the malicious traffic charts?

Indonesia as a major source of malicious traffic? That’s what a recent infographic from content delivery network provider Akamai seemed to say. In her first article for We Live Security, ESET security researcher Lysa Myers investigates.

Solutions to current antivirus challenges

The detection and blocking of malicious code employed by modern threats, whether targeted attacks or mass-spreading campaigns, has been a game of cat-and-mouse for some time now. Is it time for a new approach?

A prompt to save the world: new security features against malware in AutoCAD

Security researchers from Autodesk, along with Microsoft, announced new features in AutoCAD to prevent malware in a presentation at Virus Bulletin 2013 in Berlin. We look at how a simple prompt can help keep users safe.

Win32/KanKan – Chinese drama

In this blog post, we will describe software detected by ESET products as Win32/Kankan, and explain why its discovery shocked many Chinese users, then we will provide an in-depth analysis of its functionalities – and discuss the evidence that Xunlei Networking Technologies is implicated.

Win32/Napolar – A new bot on the block

There is a new bot on the block. ESET identifies it as Win32/Napolar while its author calls it solarbot. This piece of malware came to our attention mid-August because of its interesting anti-debugging and code injection techniques.

Filecoder: Holding your data to ransom

Trojans that encrypt user files and try to extort a ransom from the victim in exchange for a decryptor utility are nothing new. We’ve noted a significant increase in Filecoder activity over the past few summer months – in this blog post we address the questions we’re getting about this issue.

Known unknowns – detecting rootkits under OS X

We think that there could be rootkits targeting the OS X platform, but we have very limited visibility into that threat right now. We know that we don’t know. Today, ESET is releasing a simple tool to detect rootkits on OS X.

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