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Cybersecurity research and insight for the AI era · <a href='https://www.eset.com/blog/en/' target='_blank'>Moving soon to the ESET Blog</a>

MythicRatatoskr: An Yggdrasil-enabled backdoor deployed in a UAC-0099-Sandworm collaboration
Anton Cherepanov

Anton Cherepanov and Peter Strýček • 22 Oct 2026 • 16 min. read

ESET Research

MythicRatatoskr: An Yggdrasil-enabled backdoor deployed in a UAC-0099-Sandworm collaboration

Anton Cherepanov and Peter Strýček • 22 Oct 2026 • 16 min. read

MATCHBOIL: New tricks, same old evil intentions
Fernando Tavella

Fernando Tavella • 08 Oct 2026 • 15 min. read

ESET Research

MATCHBOIL: New tricks, same old evil intentions

Fernando Tavella • 08 Oct 2026 • 15 min. read

Beware the SparroWock: The backdoor that bites, the commands that catch
Alexandre Côté Cyr

Alexandre Côté Cyr and Romain Dumont • 17 Sep 2026 • 17 min. read

ESET Research

Beware the SparroWock: The backdoor that bites, the commands that catch

Alexandre Côté Cyr and Romain Dumont • 17 Sep 2026 • 17 min. read

The SMB cybersecurity squeeze: AI agents at work, old attacks in overdrive

Business Security

The SMB cybersecurity squeeze: AI agents at work, old attacks in overdrive

GuardBreaker: Derailing AI-assisted malware analysis with a code comment

Business Security

GuardBreaker: Derailing AI-assisted malware analysis with a code comment

Latest Articles

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ESET Research • 21 Feb 2007


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The Moral Composition of a Spyware Purveyor

The Moral Composition of a Spyware Purveyor

ESET Research • 20 Feb 2007


More on the Norwich Witch Hunt

More on the Norwich Witch Hunt

More on the Norwich Witch Hunt

ESET Research • 15 Feb 2007


Can a Legal System Unversed in Technology Result in a Fair Trial?

Can a Legal System Unversed in Technology Result in a Fair Trial?

Can a Legal System Unversed in Technology Result in a Fair Trial?

ESET Research • 15 Feb 2007


Beware of Anna Nicole Smith Malware

Beware of Anna Nicole Smith Malware

Beware of Anna Nicole Smith Malware

ESET Research • 08 Feb 2007


The "Super Bowl" Trojan

The "Super Bowl" Trojan

The "Super Bowl" Trojan

ESET Research • 02 Feb 2007


Super Bowl Dolphin Stadium Website Trojan

Super Bowl Dolphin Stadium Website Trojan

Super Bowl Dolphin Stadium Website Trojan

ESET Research • 02 Feb 2007


Mea Culpa

Mea Culpa

Mea Culpa

ESET Research • 02 Feb 2007


Shhh - it's a Secret!

Shhh - it's a Secret!

Shhh - it's a Secret!

ESET Research • 01 Feb 2007


So You Have An Undetected Virus?

So You Have An Undetected Virus?

So You Have An Undetected Virus?

ESET Research • 31 Jan 2007


I See Antivirus Software in the Vista

I See Antivirus Software in the Vista

I See Antivirus Software in the Vista

ESET Research • 30 Jan 2007


Storm Worm

Storm Worm

Storm Worm

ESET Research • 22 Jan 2007

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