The operators of the notorious trojan downloader Nemucod seem to have stepped up their game, serving their victims with ransomware and ad-clickers.
On the morning of Friday August 12th, ESET researchers noticed a huge outbreak of a new Spy.Banker variant, detected as Spy.Banker.ADEA. It happened at around 12pm CET.
ESET researchers have spotted fake patch apps for Android – probably the first ever malicious mobile apps masquerading as a patch for a recently discovered vulnerability.
The trojan downloader Nemucod is back with a new campaign. However, it has changed the payload served to its victims – ransomware is not its go-to malware.
ESET researchers have discovered fake Prisma apps of different types, including several dangerous trojan downloaders. The Google Play security team has since removed them.
In 1999, David L. Smith launched the Melissa virus. Within a few hours, it had infected thousands of computers. We take a look back at its impact.
During the first half of this year, ESET has observed an increase in the number of detections of Nymaim, a long-known malware family whose prevalence has fallen markedly since 2014.
Fast food giant Wendy's says that it now believes that more than 1000 of its restaurants across the United States have fallen victim to a hacking gang, who used malware to steal customers' credit and debit card information.
For the last few weeks, ESET has been investigating OSX/Keydnap, a malware that steals the content of the keychain while maintaining a permanent backdoor.
Over the course of the last year, ESET has detected and analyzed several instances of malware used for targeted espionage – dubbed SBDH toolkit.
Some of the most dangerous vectors used by cybercriminals are those that involve scripts, since they are difficult for users to detect, says Josep Albors.
The creators of Nemucod, the code responsible for downloading and executing malware like Locky, have been hard at work polishing their code.
ESET's David Harley revisits the Stuxnet phenomenon: How has the way we see the malware and its impact changed?
ESET LiveGrid® telemetry shows a spike in detections of the JS/Danger.ScriptAttachment malware in several European countries.
In contrast to the Eurovision contestants, malware writers try to make their creations as stealthy as possible. But thanks to unique behavior and sometimes even unintended showmanship of their malicious code, they end up in the limelight.
The FBI has published a list of tips to reduce the chance of ransomware being the ruin of your company - and is keen that you don't pay the extortionists.
A report from the Institute for Critical Infrastructure Technology warns that ransomware could be hitting more than just your regular computer in future...
In the half-decade that has lapsed since Dorkbot was first identified, millions of innocent victims, going about their everyday business, have been affected in over 190 countries. It has, quite literally, wormed its malicious way into computer systems throughout the world.
ESET researchers are actively monitoring malware that targets embedded systems such as routers, gateways and wireless access points. We call this new threat Linux/Remaiten.
ESET has discovered a new USB-based data stealer capable of stealthy attacks against air-gapped systems – it is also well-protected against detection and reverse-engineering.