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Company

ESET

ESET is a Slovak cybersecurity company making antivirus and endpoint protection software; its research arm publishes threat intelligence via WeLiveSecurity.

Known aliases

  • ESET Management Agent
  • ESET PROTECT
  • ESET Research
  • ESET researchers
  • WeLiveSecurity

Current stories

leadershipOne report1 publisher

North Korean fake IT workers are submitting up to 60 applications a day, and experts urge in-person verification of contractors

North Korean fake IT workers are submitting as many as 60 job applications a day, ITPro reported from new research. Interviews are where these candidates succeed, so identity checks at hiring belong on the security team's list.

Publishers:itpro.com

Reality

Evidence55
Adoption35
Hype gap+15
Incentives50
Confidence50
securityConfirmed4 publishers

ESET traces at least 21 months of changes to UAC-0099's MatchBoil downloader

ESET says UAC-0099 has reworked its MatchBoil downloader since at least July 2024, with the newest version appearing in April 2026. Repeated changes aimed at security software mean indicators from CERT-UA's August 2025 write-up describe an older build.

Perspective Coverage

4 publishers
Builder
Builder 30%
Operator
Operator 63%
Investor
Investor 7%

Reality

Evidence68
Adoption
Not scored
Hype gap+12
Incentives35
Confidence66
securityConfirmed2 publishers

UAC-0099 pushes MATCHBOIL from Ukraine's transport firms into manufacturing and energy

UAC-0099, a Russia-aligned group, has pushed its MATCHBOIL downloader from Ukrainian transport firms into a manufacturer and an energy company, ESET says. The researchers tracked the tool for almost two years; it installs MATCHWOK, a C# backdoor that grabs screenshots and runs PowerShell.

Reality

Evidence68
Adoption
Not scored
Hype gap+10
Incentives30
Confidence66
securityOne report1 publisher

Invisible HTML elements carry the commands for UAC-0099's ASHVEIN RAT

TrendAI has tied ASHVEIN, a previously undocumented .NET RAT, to UAC-0099 attacks on Ukrainian government personnel, citing five builds from October 2025. The group has fielded newer tools since, so detection that lasts has to target how it delivers and tasks its implants.

Reality

Evidence50
Adoption25
Hype gap+10
Incentives35
Confidence50
securityOne report1 publisher

ESET ties fake YouTube sponsorship portals to one modular scheme that swaps brand disguises

Scammers posing as Hollyland, Nike and Spotify lure YouTube creators to fake brand-deal portals that take Google passwords and one-time codes, ESET found. One sign-in hands over Gmail, Drive and the channel itself.

Reality

Evidence55
Adoption
Not scored
Hype gap+10
Incentives
Not scored
Confidence60
securityOne report1 publisher

RatHat operators use Gemini to rank Android victims by estimated bank balance

RatHat's malware console now feeds stolen texts to Google's Gemini to estimate each victim's bank balance and rank who to rob first, security firm Cleafy says. Cleafy has traced nearly 100 deployments since April 2026 and found nothing that moves money.

Reality

Evidence55
Adoption25
Hype gap+10
Incentives
Not scored
Confidence55
securityOne report1 publisher

One Polygon smart contract rotated ClickFix lure hosts three times in a single day

CTM360 tracked more than 17,000 compromised URLs serving a fake Cloudflare check whose next hostname arrives from an on-chain lookup. Microsoft put 47 percent of its 2025 initial-access cases down to the technique.

Reality

Evidence45
Adoption72
Hype gap+20
Incentives70
Confidence50
securityConfirmed3 publishers

SLEEPWALKER: a backdoor that ships its own 23-instruction language, and nothing to block until it wakes

Dominik Reichel's write-up describes a passive Windows implant with no listening port and no embedded payload. Recovering its AES key still leaves you holding bytecode for an interpreter only it understands.

Publishers:r136a1.dev scworld.com thehackernews.com

Perspective Coverage

3 publishers
Builder
Builder 43%
Operator
Operator 52%
Investor
Investor 5%

Reality

Evidence58
Adoption10
Hype gap+6
Incentives35
Confidence68
securityConfirmed6 publishers

DOJ extradites a Russian accused of pushing macro malware through 255 fake marketplace accounts

A Northern California freelance marketplace's own messaging system carried Excel macro lures to 80,000 of its users across 18 months. Microsoft closed that delivery step in 2022. The same platform lure now shows up in North Korean operations.

Perspective Coverage

6 publishers
Builder
Builder 17%
Operator
Operator 78%
Investor
Investor 5%

Reality

Evidence70
Adoption
Not scored
Hype gap+20
Incentives
Not scored
Confidence68
securityConfirmed6 publishers

Malware on F5 BIG-IP APM appliances splices its PHP web shell into Apache's memory

Sophos says the code patches Apache and hooks the PHP module loader so the shell never lands on disk, which leaves file-integrity checking on an appliance that was never running EDR unable to prove much.

Perspective Coverage

6 publishers
Builder
Builder 37%
Operator
Operator 57%
Investor
Investor 6%

Reality

Evidence72
Adoption
Not scored
Hype gap+10
Incentives35
Confidence70
securityOne report1 publisher

Nation-state and financially-motivated attackers are exploiting the same Cisco FMC authentication bypass

Two actor classes are using CVE-2026-20079 against the console that manages every Cisco Secure Firewall behind it. The same week brought a Linux rootkit planted on F5 BIG-IP APM appliances, with the installation route unreported.

Reality

Evidence60
Adoption
Not scored
Hype gap0
Incentives
Not scored
Confidence55
securityConfirmed3 publishers

BambooToken moves its Windows and Linux command channel onto MQTT brokers

Black Lotus Labs counted about a dozen compromised enterprises, mostly in Asia and South America, on a framework that has been publishing operator commands to infected hosts through IoT message brokers since 2024.

Perspective Coverage

3 publishers
Builder
Builder 27%
Operator
Operator 62%
Investor
Investor 11%

Reality

Evidence66
Adoption18
Hype gap+20
Incentives
Not scored
Confidence64
securityConfirmed5 publishers

FamousSparrow replaced SparrowDoor with SparroWocky in a year of Latin American intrusions

ESET traced more than a year of espionage against government organizations in eight Latin American countries and territories to a modular C++ implant that hooks CreateThread so every thread it spawns looks like AnimateWindow.

Perspective Coverage

5 publishers
Builder
Builder 22%
Operator
Operator 68%
Investor
Investor 10%

Reality

Evidence70
Adoption
Not scored
Hype gap+5
Incentives
Not scored
Confidence68
securityOne report1 publisher

China-aligned Webworm now routes command and control through Discord and Microsoft Graph

ESET says the group dropped McRat and Trochilus in 2025 and hit government targets in Belgium, Italy, Serbia and Poland. Its two new backdoors call home to Discord and the Microsoft Graph API.

Reality

Evidence62
Adoption58
Hype gap+8
Incentives60
Confidence62
leadershipOne report1 publisher

Meta advertises Muse on national television as an agent that works while you chop lettuce

Meta's first TV spot for its personal AI agent shows Muse sorting email, fixing a schedule and buying school supplies unsupervised. That picture of what an agent does now reaches employees through consumer advertising before any workplace pilot does.

Reality

Evidence50
Adoption28
Hype gap+35
Incentives70
Confidence55
leadershipOne report1 publisher

Homoglyph links break the URL check most phishing training teaches

ESET's Jake Moore says a person can inspect a link exactly as they were taught and still be fooled, because one Cyrillic character renders as the Latin one.

Publishers:theguardian.com

Reality

Evidence52
Adoption
Not scored
Hype gap+8
Incentives58
Confidence60
leadershipOne report1 publisher

A consumer AI agent is worth what you let it log into

Meta, Google and Instinct have shipped agents that book travel and clear inboxes, and each one needs a credit card or an email password to do it. The approval prompt for the risky step lands on whoever holds the login.

Reality

Evidence58
Adoption52
Hype gap+18
Incentives62
Confidence55
securityOne report1 publisher

TAKE IT DOWN Act gives platforms 48 hours to remove a reported AI nude

ESET's guidance puts the US removal deadline at 48 hours from a valid request, and the study it cites counts 181 nudify sites drawing 40 million visits a month, so the filing path has to exist first.

Reality

Evidence45
Adoption45
Hype gap+15
Incentives65
Confidence55
securityOne report1 publisher

UAC-0099 hid a nuclear-weapons request in a VBScript comment to stall an LLM code scanner

ESET calls the technique GuardBreaker and notes that this bait, unlike most evasion tricks, is left in plain sight for the models reading the code to find.

Reality

Evidence58
Adoption32
Hype gap+22
Incentives68
Confidence60

Earlier coverage

  1. Gambling Goblin turns .gov.br servers into invisible reverse proxies for app-store phishing

    Security · September 2, 2026 · Confirmed3 publishers