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Malware

British man arrested after 900,000 broadband routers knocked offline in Germany

A 29-year-old man has been arrested at Luton airport by the UK’s National Crime Agency (NCA) in connection with a massive internet attack that disrupted telephone, television and internet services in Germany last November.

Released Android malware source code used to run a banking botnet

ESET researchers have discovered a new variant of botnet-forming Android banking malware based on source code made public a couple of months ago.

Sunny with a chance of stolen credentials: Malicious weather app found on Google Play

ESET has spotted a new banking malware on Google Play. Disguised as a weather forecast app, it steals banking credentials and locks screens.

8 things you should know about spyware

WeLiveSecurity takes a look at what you need to know about spyware – the malware secretly prying on your online activities.

Demystifying targeted malware used against Polish banks

The purpose of this blog is to deliver technical details of an as-yet minimally documented malware that has made headlines in Poland.

ILOVEYOU: The wrong kind of LoveLetter

A game with love: How the LoveLetter virus corrupted our tech by playing on our emotions.

Ransomware attack hits St Louis Public library

If you were trying to use the public computers at St Louis Public Library this week you may have experienced more than your fair share of problems.

Flashback Wednesday: Pakistani Brain

This month’s Flashback Wednesday takes us back to the beginning. Pakistani Brain, discovered on January 19th, is considered to be the first-ever PC virus.

Fast Flux networks: What are they and how do they work?

The term Fast Flux can refer to networks used by several botnets to hide the domains used to download malware or host phishing websites, says Josep Albors.

New Linux/Rakos threat: devices and servers under SSH scan (again)

ESET’s Peter Kálnai and Michal Malik report on a new Linux/Rakos threat – devices and servers are under SSH scan again.

The rise of TeleBots: Analyzing disruptive KillDisk attacks

ESET’s Anton Cherepanov analyzes the work of TeleBots, a malicious toolset that was used in focused cyberattacks against targets in Ukraine’s financial sector.

Modern attacks on Russian financial institutions

ESET’s Anton Cherepanov Jean-Ian Boutin discuss their paper, titled Modern Attacks on Russian Financial Institutions, which was published earlier this year.

Stegano exploit kit poisoning pixels

Visiting popular websites and getting infected without any interaction? ESET explains how the stealthy Stegano exploit kit, hiding in the pixels of malicious ads, is capable of performing this dirty job.

Dorkbot: Life after disruption

A year after its disruption on 2nd December 2015, We Live Security looks at life after Dorkbot.

Avalanche takedown: Check if you are safe

Earlier this week coordinated law enforcement action took down the Avalanche fast-flux network. ESET has been assisting in the cleanup.

900,000 Germans knocked offline, as critical router flaw exploited

As many as 900,000 Deutsche Telekom customers were knocked offline on Sunday and Monday as an attempt was made to hijack broadband routers into a botnet.

MailChimp accounts hacked to spam out malicious emails

Hackers broke into the MailChimp accounts of some businesses, and send out malicious invoice emails to subscribers… but that doesn’t mean that MailChimp suffered a serious security breach.

Once again, two-factor authentication could have saved users’ bacon.

The odd, 8-year legacy of the Conficker worm

The Conficker worm was huge news when it emerged towards the end of 2008, exploiting millions of Windows devices. Today, it remains one of the most pervasive malware families around the globe.

Sednit: A very digested read

This feature offers a very digested read of ESET’s trilogy of research papers on Sednit, one of the most notorious groups of cyberattackers in the world.

Tesco Bank not alone in being targeted by Retefe malware

Tesco Bank, which recently saw thousands of its customers lose funds to cybercriminals, has been found on the target list of the so-called Retefe malware.

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