ESET's discovery of the first UEFI bootkit designed for Linux sendss an important message: UEFI bootkits are no longer confined to Windows systems alone.

Following the takedown of RedLine Stealer by international authorities, ESET researchers are publicly releasing their research into the infostealer’s backend modules.

ESET researchers uncover new Rust-based tools that we named MDeployer and MS4Killer and that are actively utilized by a new ransomware group called Embargo.

ESET Research shares new findings about Telekopye, a scam toolkit used to defraud people on online marketplaces, and newly on accommodation booking platforms.

ESET Research uncovers Android malware that relays NFC data from victims’ payment cards, via victims’ mobile phones, to the device of a perpetrator waiting at an ATM.

ESET researchers provide technical analysis of the Lunar toolset, likely used by the Turla APT group, that infiltrated a European ministry of foreign affairs

The past year has seen over 10,000 downloads of malicious packages hosted on the official Python package repository, ESET research finds.

ESET research shares insights about groups operating Telekopye, Telegram bots that scam people in online marketplaces, their internal onboarding process, different tricks of trade that Neanderthals use, and more.

ESET Research discover campaigns by the Winter Vivern APT group that exploit a zero-day XSS vulnerability in the Roundcube Webmail server and target governmental entities and a think tank in Europe.

ESET researchers uncover a Lazarus attack against an aerospace company in Spain, where the group deployed several tools, including a publicly undocumented backdoor we named LightlessCan.

ESET researchers uncover a toolkit that operates as a Telegram bot and helps scammers target victims on online marketplaces, mainly in Russia.

MoustachedBouncer is a cyberespionage group discovered by ESET Research and first publicly disclosed in this blogpost. The group has been active since at least 2014 and only targets foreign embassies in Belarus. Since 2020, MoustachedBouncer has most likely been able to perform adversary-in-the-middle (AitM) attacks at the ISP level, within Belarus, in order to compromise its targets. The group uses two separate toolsets that we have named NightClub and Disco.

Similarities with newly discovered Linux malware used in Operation DreamJob corroborate the theory that the 3CX attack was carried out by Lazarus.

ESET researchers are the first to publish an analysis of BlackLotus, the first in-the-wild UEFI bootkit capable of bypassing UEFI Secure Boot.

ESET researchers uncover an active StrongPity campaign that spreads a trojanized version of the Android Telegram app posing as the Shagle video chat app.

ESET researchers recently identified a new version of the Android malware FurBall being used in a Domestic Kitten campaign conducted by the APT-C-50 group. The Domestic Kitten campaign is known to conduct mobile surveillance operations against Iranian citizens and this new FurBall version is no different in its targeting. Since June 2021, it has been distributed as a translation app via a copycat of an Iranian website that provides translated articles, journals, and books. The malicious app was uploaded to VirusTotal where it triggered one of our YARA rules (used to classify and identify malware samples), which gave us the opportunity to analyze it.

ESET researchers analyzed previously undocumented custom backdoors and cyberespionage tools deployed in Israel by the POLONIUM APT group.

ESET researchers have discovered Lazarus attacks against targets in the Netherlands and Belgium that use spearphishing emails connected to fake job offers.

ESET research uncovers attacks against several high-profile aerospace and military companies in Europe and the Middle East, with several hints suggesting a possible link to the Lazarus group.

ESET uncovers CloudMensis, a macOS backdoor that spies on users of Mac devices and communicates with its operators via public cloud storage services.