category
Malware

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.

Fake Grand Theft Auto V tempts thousands of PC users to download “malware”

Grand Theft Auto V sold more than $1 billion worth of units in a week – no wonder cybercriminals are tempted to cash in. A torrent offering the game on PC has been downloaded “thousands” of times, sites report.

Warning overload? Half of PC users ignore virus alerts – and middle-aged are “worst culprits”

Middle aged PC users routinely ignore warnings that sites may harm their computers – and that figure has doubled since 2011, according to research by ESET Ireland.

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.

Stop, thief! Five new tricks used by cybercriminals – and how to stay safe

From legitimate companies delivering software with a “side-order” of malware, to PC attacks that persuade you to infect your own phone, here are some of the latest traps laid by cybercriminals – and how to sidestep them.

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.

Skorpion smartphone charger lights up if your phone contains malware

Plugging your smartphone in to charge up could soon offer an alert that you’ve contracted malware – with a new charger that lights up when it detects malicious software. For businesses, it could be a “last line of defense” against employees bringing infected devices to work.

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.

Can’t keep a bad man down: “Shylock” Trojan returns to attack U.S. banks

A stealthy banking Trojan known as Caphaw or Shylock has resurfaced – and is attacking customers of 24 American banks. It’s armed with defensive abilities including the power to “restore” itself during shutdown.

Poison Apple? “Kissing” picture spreads Trojan to Mac users

A picture of a smooching couple actually delivers a kiss of death to Mac OS X users – it’s a new Mac Trojan which opens a backdoor on users’ machines. It’s the second piece of Mac malware detected in a week.

“More trouble” brewing as mobile threats multiply “exponentially”, ex-ISACA chief warns

Mobile threats are becoming more complex, and more difficult to deal with as more and more devices become connected, a former vice-president of security trade body ISACA has warned.

Microsoft rushes out emergency fix for Internet Explorer after “targeted attacks”

Microsoft has released an emergency fix for a vulnerability in all versions of Internet Explorer – warning that targeted attacks are already attempting to exploit it.

“Chemical Trojans” baked into circuits could offer invisible way to steal secrets

“Hardware Trojans” could be baked invisibly into circuits by attackers, allowing them to grab secret keys from computer components without fear of detection – even by advanced inspection systems using optical microscopes.

A dream job at a luxury store? Nope – just a clever $1.5 million phishing scam

Six Nigerian men have gone on trial today in London for an alleged phishing scam where job offers at London’s exclusive Harrods department store were used as “bait”.

Tibet-targeting Mac OS malware rears its head again

A new variant on a family of Mac OS X malware which targets Tibetan activists has been found in the wild and shared on the Virus Total website, where security researchers show off new “finds”.

Hesperbot – technical analysis: part 2/2

In this 3rd Hesperbot blog post we’ll look at the most intriguing part of the malware – the way it handles network traffic interception.

Hesperbot – Technical analysis part 1/2

Win32/Spy.Hesperbot is a new banking trojan that has been targeting online banking users in Turkey, the Czech Republic, Portugal and the United Kingdom. For more information about its malware spreading campaigns and victims, refer to our first blog post. In this post we’ll cover the technical details of the malware, including the overall architecture, as well as the mobile component.

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