In this post we provide additional information on how a specially crafted PowerPoint slideshow file (.PPSX) led to the execution of a BlackEnergy dropper.
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ESET research on Operation Windigo received an award at Virus Bulletin 2014. Our research on bootkits was also well received, and is now available publicly.
Apple Mac OS X users concerned about the Bash vulnerability dubbed Shellshock got some relief late yesterday as Apple published fixes for various versions of OS X. But if you use Mavericks you will need to install 10.9.5 before the Bash fix will work.
The "Bash Bug" or "Shellshock" vulnerability means a wide range of devices, servers and computers, including Mac OS X, will need to be patched to prevent abuse by malicious persons. Here's advice about what to do and links to more in-depth resources.
State organizations and private businesses from various sectors in Ukraine and Poland have been targeted with new versions of BlackEnergy, a malware that's evolved into a sophisticated threat with a modular architecture.
Updated information on ESET presentations at Virus Bulletin 2014.
Autumn: the season of mists and mellow fruitfulness, not to mention a couple of excellent security conferences. Virus Bulletin and AVAR make a very tasty Conference Pair.
Three weeks ago, iSIGHT Partners discovered a new Ransomware encrypting victims’ documents. They dubbed this new threat TorrentLocker. TorrentLocker propagates via spam messages containing a link to a phishing page where the user is asked to download and execute “package tracking information”. In August, only Australians were targeted with fake Australian Post package-tracking page. While
Win32/Aibatook targets Japanese bank customers with an unusual Internet Explorer monitoring technique. We believe the malware has been in development for months - and is now ready for take-off.
ESET researchers recently came across a targeted attack against the Vietnamese government's Ministry of Natural Resources and Environment (MONRE).
Last weekend saw the (somewhat anticipated) discovery of an interesting mobile trojan – the first spotting of a file-encrypting ransomware for Android by our detection engineers.
An article for Virus Bulletin by David Harley reviews two eBooks offering security advice to consumers.
iBanking is a malicious Android application that when installed on a mobile phone is able to spy on its user’s communications. This bot has many interesting phone-specific capabilities, including capturing incoming and outgoing SMS messages, redirecting incoming voice calls, and even capturing audio using the device’s microphone.
The critical security vulnerability in OpenSSL known commonly as “Heartbleed” continues to raise alarms, with websites now warning that hackers have breached their systems by exploiting the bug, and stolen personal information about users.
There have been some interesting new developments since we published our report on Operation Windigo. In this blog post you will read about a Linux/Ebury update, and the reaction of the criminal gang to our post.
DNS hijacking is still going strong and the Win32/Sality operators have added this technique to their long-lasting botnet. This blog post describes how the malware guesses router passwords as part of its campaign to misdirect users, send spam and infect new victims.
Malware researchers at ESET have uncovered a widespread cybercriminal operation that has seized control of tens of thousands of Unix servers. Learn more about how to check your systems for compromise, and prevent innocent computer users from being attacked.
Operation Windigo – the vivisection of a large Linux server‑side credential‑stealing malware campaign
Our report titled “Operation Windigo – the vivisection of a large Linux server-side credential-stealing malware campaign" details our analysis of a set of malicious programs that infect servers and desktop PCs, and send nearly 500,000 web users to malicious content daily."
In this blog post, we provide an in-depth analysis of Linux/Ebury - the most sophisticated Linux backdoor ever seen by our researchers. It is built to steal OpenSSH credentials and maintain access to a compromised server.
The year 2013 was notable for the appearance of 0-day vulnerabilities that were primarily used in targeted attacks. In this case, criminal hackers worked on developing exploits, only not for random propagation of malicious code, but rather for use in attacks on specific users.