MEGA claims it can’t decrypt your files. But someone’s managed to…

MEGA, the cloud storage provider and file hosting service, is very proud of its end-to-end encryption. It says it couldnt decrypt your stored files, even if it wanted to. “All your data on MEGA is encrypted with a key derived from your password; in other words, your password is your main encrypti...

Hertzbleed exposes computers’ secret whispers

Hertzbleed is the name for a vulnerability that can be used to obtain cryptographic keys and other secret data from Intel and AMD CPUs, remotely. It works by monitoring changes in power consumption, which can be deduced by the careful timing of known workloads, thanks to a processor power saving...

Introducing Malwarebytes Vulnerability Assessment for OneView: How to check for Common Vulnerabilities and Exposures (CVEs)

Malwarebytes is happy to announce our Vulnerability Assessment module for OneView, our multi-tenant console where you can manage Malwarebytes Nebula accounts, subscriptions, invoicing, and integrations. This module enables our MSPs to scan, identify, and assess vulnerabilities in customers’ digit...

ASyncRat surpasses Dridex, TrickBot and Emotet to become dominant email threat

Earlier this year Malwarebytes released its 2022 Threat Review, a review of the most important threats and cybersecurity trends of 2021, and what they could mean for 2022. Among other things it covers the years alarming rebound in malware detections, and a significant shift in the balance of emai...

Prometheus ransomware’s flaws inspired researchers to try to build a near-universal decryption tool

This blog is part of our live coverage from RSA Conference 2022: Prometheus—a ransomware build based on Thanos that locked up victims’ computers in the summer of 2021—included a major “vulnerability” that led security researchers at IBM to try and build a one-size-fits-all ransomware decryptor th...

A week in security (May 30 – June 5)

Last week on Malwarebytes Labs: Intuit phish says "We have put a temporary hold on your account" The Quad commits to strengthening cybersecurity in software, supply chains Double-whammy attack follows fake Covid alert with a bogus bank call Microsoft Office zero-day "Follina"—its not a bug, its a...

Ransomware attack turns 2022 into 1977 for Somerset County

1977 was quite the year. Led Zeppelin! Jimmy Carter! Saturday Night Fever! We can now add "a ransomware attack" to this once static list. Somerset County, New Jersey, has been hit so hard by a network assault that theyve ended up in the direst straits imaginable, with county databases unavailable...

WhatsApp accounts hijacked by call forwarding

In a short post on LinkedIn Rahul Sasi, founder and CEO of CloudSEK, explains how WhatsApp account takeovers are possible. The methods consists of several steps and it takes some social engineering skills, but it’s good to be aware of the possibility and how it works. It starts with the threat...

Why MRG-Effitas matters to SMBs

When selecting the right cybersecurity vendor to protect their operations, small- and medium-sized businesses SMBs can lean on several third-party research organizations that analyze which cybersecurity products can best prevent, detect, and clean up various types of cyberattacks today. But these...

Fake reCAPTCHA forms dupe users via compromised WordPress sites

Researchers at Sucuri investigated a number of WordPress websites complaining about unwanted redirects and found websites that use fake CAPTCHA forms to get the visitor to accept web push notifications. These websites are a new wave of a campaign that leverages many compromised WordPress sites...

Costa Rica continues defence against sustained Conti ransomware attacks

Its not been plain sailing recently for Conti ransomware, the Ransomware as a Service RaaS group with several major attacks under its belt. In August last year, a pen tester leaked valuable manuals and documents related to the operation. These leaks continued as the Conti gang expressed support f...

It’s business as usual for REvil ransomware

After the FBS arrested 14 of its members in January, and a subsequent lull in action, the REvil ransomware gang appears to be back. We say "appears" because its still unclear whether the groups operations have indeed restarted. To the trained eye, REvils movements seem out of sorts. When REvils o...

A week in security (April 25 – May 1)

Last week on Malwarebytes Labs: Why MITRE matters to SMBs Apple’s child safety features are coming to a Messages app near you Why software has so many vulnerabilities, with Tanya Janca: Lock and Code S03E09 Watch out for this SMS phish promising a tax refund Rogue ads phishing for cryptocurrency:...

YouTube channels of Taylor Swift, Justin Bieber, Harry Styles, and other musicians compromised

Some of the biggest stars around have seen content placed on their YouTube accounts without permission over the last couple of days. Taylor Swift has around 40 million subscribers. Justin Bieber? 68 million. Harry Styles, a respectable 12 million. You can even add Eminem and Michael Jackson to th...

New UAC-0056 activity: There’s a Go Elephant in the room

This blog post was authored by Ankur Saini, Roberto Santos and Hossein Jazi. UAC-0056 also known as SaintBear, UNC2589 and TA471 is a cyber espionage actor that has been active since early 2021 and has mainly targeted Ukraine and Georgia. The group is known to have performed a wiper attack in...

Covid app’s privacy information ruled not clear enough

The UKs data watchdog has issued a reprimand to both the Scottish government and NHS National Services Scotland about their Covid Status app. The Information Commissioners Office ICO urged both to act swiftly to address its concerns about the app that, according to the ICO, failed to provide peop...

Cyber lures and threats in the context of the war in Ukraine

The conflict between Ukraine and Russia goes a long way back, but it took a dramatic turn after the 2014 Ukrainian revolution. Since then, the war in the Donbas region has resulted in a number of casualties as well as a constant feeling of insecurity among the population. In recent months, Russia...

CISA warns of cyberespionage by Iranian APT “MuddyWater”

Cybersecurity agencies in the US and UK have issued a joint cybersecurity advisory CSA on MuddyWater, a government-sponsored Iranian advanced persistent threat APT actor. The Cybersecurity and Infrastructure Security Agency CISA, the Federal Bureau of Investigation FBI, the US Cyber Command Cyber...

News Corp falls victim to cyberattack

Media giant News Corp says it has fallen victim to a cyberattack. First analysis indicates that the attack was a state sponsored attack, aimed at emails and documents of News Corp employees, including journalists. News Corp says data was stolen, but that it didnt include financial data or...

How to speed up your computer or laptop

Why do machines always throw a tantrum when you are in a hurry? It’s called Murphy’s Law which some people may know as the butter side down rule. Anything that can go wrong will go wrong. And usually at a time when it is most inconvenient. That being said, there are ways to speed things up. Let’s...

Software engineer hacked webcams to spy on girls—Here’s how to protect yourself

A 32 year-old software engineer has been sentenced to two years and two months in prison for remotely accessing chat logs, photos, videos, and webcams of his female victims. For nine years, between 2010 to 2019, Robert Davies used malware to infiltrate his targets devices and access their data...

Emotet being spread via malicious Windows App Installer packages

As reported by Cryptolaemus on Twitter, and demonstrated step by step by BleepingComputer, Emotet is now being distributed through malicious Windows App Installer packages that pretend to be Adobe PDF software. How does the attack work? To understand what Microsoft is supposed to do about this...

The return of the Malwarebytes CrackMe

This blog post was authored by Hasherezade Update: Malwarebytes Crackme : we already have the winners in the category "the fastest solve", congratulations! 1st: @nazywam 2nd: Suvaditya Sur @x0r19x91 3rd:@evandrix But we are still waiting for your submissions! -- Malwarebytes Threat Intelligence...

Protect yourself from BlackMatter ransomware: Advice issued

Despite promises made by the BlackMatter ransomware gang about which organizations and business types they would avoid, multiple US critical infrastructure entities have been targeted. Now, the Federal Bureau of Investigation FBI, in conjunction with the Cybersecurity and Infrastructure Security...

What is an .exe file? Is it the same as an executable?

You may often see .exe files but you may not know what they are. Is it the same as an executable file? The short answer is no. So whats the difference? What is an .exe file? Exe in this context is a file extension denoting an executable file for Microsoft Windows. Windows file names have two part...

Ransom Disclosure Act would mandate ransomware payment reporting

In an effort to better understand and clamp down on the ransomware economy and its related use of cryptocurrencies, US Senator and past presidential hopeful Elizabeth Warren and US House Representative Deborah Ross introduced a new bill last week that would require companies and organizations to...

A week in security (Oct 4 – Oct 10)

Last week on Malwarebytes Labs Does Cybersecurity Awareness Month actually improve security? Police take a piece out of a ransomware gang, but won’t say which one Neiman Marcus data breach affects millions Windows 11 is out. Is it any good for security? Criminals were inside Syniverse for 5 years...

US Navy ship Facebook page hijacked to stream video games

The official Facebook page of the US Navy’s destroyer-class warship, USS Kidd, has been hijacked. According to Task & Purpose, who first reported on the incident, the account has done nothing but stream Age of Empires, an award-winning, history-based real-time strategy RTS video game wherein...

Parts of the Dark Web “awash” with school children’s personal data

NBC News has collected and analyzed a trove of childrens personal information it discovered on the Dark Web. Even though this information may not be as useful to cybercriminals as credit card details or login credentials, the information is still out there, where we don’t want it. So what is it,...

Sextortion on the rise, warns FBI

The pandemic saw a surge in sextortion cases in 2020. Fast forward 12 months, and the numbers continue to rise significantly. This revelation came from the FBI Internet Crime Complaint Center IC3. Until 31 July 2021, it had received over 16,000 sextortion complaints, with victims losing a combine...

Lock and Code S1Ep19: Forecasting IoT cybersecurity with John Donovan and Adam Kujawa

This week on Lock and Code, we offer something special for listeners—a backstage pass to a cybersecurity training that we held for employees during Cybersecurity Awareness Month, which ended in October. The topic? The future of cybersecurity for the Internet of Things. Our guests, Chief Informati...

RegTech explained: a crucial toolset for the financial industry

Every organization in the financial industry needs to meet certain regulatory obligations, even if it’s just filing a tax return or submitting an annual report. In certain industries, such as financial services, theyve added their own additional sets of rules that must be adhered to. For example,...

A week in security (August 31 – September 6)

Last week on Malwarebytes Labs, we dug into security hubris on the Lock and Code podcast, explored ways in which Apple’s notarization process may not be hitting all the right notes, and detailed a new web skimmer. We also explained how to keep distance learners secure, talked about PCI DSS...

Lock and Code S1Ep14: Uncovering security hubris with Adam Kujawa

This week on Lock and Code, we discuss the top security headlines generated right here on Labs and around the Internet. In addition, we talk to Adam Kujawa, security evangelist and director of Malwarebytes Labs, about "security hubris," the simple phenomenon in which businesses are less secure th...

Lock and Code S1Ep13: Monitoring the safety of parental monitoring apps with Emory Roane

This week on Lock and Code, we discuss the top security headlines generated right here on Labs and around the Internet. In addition, we talk to Emory Roane, policy counsel at Privacy Rights Clearinghouse, about parental monitoring apps. These tools offer parents the capabilities to spot where the...

Lock and Code S1Ep9: Strengthening and forgetting passwords with Matt Davey and Kyle Swank

This week on Lock and Code, we discuss the top security headlines generated right here on Labs and around the Internet. In addition, we talk to Matt Davey, chief operations optimist at 1Password, and Kyle Swank, a member of 1Password’s security team, about—what else—passwords. We may know it’s...

Seven security tips for staying safe on an iPhone

iPhones have a reputation for being notoriously secure. After all, they caused quite the kerfuffle between Apple and the FBI because they are, from the FBI's point of view, too secure! However, don't let that lull you into a false sense of security. Using an iPhone is not an automatic guarantee o...

Of princes and perpetrators: Beware of getting ensnared in 419 scams

We've mentioned before that 419 scams don't always originate from Nigeria. It's a very simple and popular scam that can be attempted by pretty much anyone with a flair for social engineering. Indeed, 419 scams are so associated with the region that many scammers in non-Nigerian countries know the...

The seven most colossal data breaches of 2017

By Logan Strain If it seems like the words “leak,” “compromised data,” and “breach” are constantly in the news, it’s not just you. The frequency of major data breaches is increasing. According to the Identity Theft Resource Center, the number of breaches is expected to top 1,500 in 2017. That’s a...

Why is Malwarebytes blocking CoinHive?

If you've encountered a Malwarebytes web protection block for coinhive.com over the last few weeks, you are either glad about it, angry about it, or don't really care. Since September 19, the second most frequently blocked website for our customers has been coinhive.com, and when we observe that...

A week in security (Jun 12 – Jun 18)

Last week was very busy for the Labs, with a look at so-called numeric tech support scams, a visit to the huge Infosec Europe conference, an exploration of Mac Malware as a Service, and a walk through the myths of online bullying. Elsewhere: A huge click-farm is busted Jaff Ransomware is thwarted...

VRChat says reported data breach never happened

A data breach notice has been filed with the Maine Attorney General, saying more than 2.4 million users of VRChat have had their data breached. The question is, was it VRChat who filed the breach notice, or did someone pretending to represent the company post it instead? On Reddit, a VRChat...

Americans lost nearly $900 million to AI-powered scams, FBI says

The 2025 Federal Bureau of Investigation FBI Internet Crime Report shows that Americans reported $893,346,472 in AI‑related scam losses. Those losses stem from 22,364 AI-related complaints. And these figures represent only the reported losses, which may well be the proverbial tip of the iceberg...

Fake virus alerts are invading mobile games

Sometimes it happens. You’re happily playing a game on your phone or laptop when suddenly alarms pop up out of nowhere: " Your device is infected!" " Your iCloud is full!" " Your account is restricted for watching porn!" Some games can be played for free if you agree to watch ads, and in others y...

A week in security (May 18 – May 24)

Last week on Malwarebytes Labs: Update Chrome now: Critical bugs could let attackers run code Microsoft Defender vulnerabilities are being exploited in the wild TikTok, YouTube, and Roblox face scrutiny, but age gates won’t fix child safety Catch spyware in the act with Windows Webcam Monitoring...

WhatsApp hack: Meta wins payout over NSO Group spyware

Meta has won almost $170m in damages from Israel-based NSO Group, maker of the Pegasus spyware. The ruling comes after a six-year legal case against the company after Meta accused it of misusing its servers to spy on users. According to the original complaint against NSO Group, filed in October...

A week in security (March 3 – March 9)

Last week on Malwarebytes Labs: TikTok: Major investigation launched into platform’s use of children’s data PayPal scam abuses Docusign API to spread phishy emails Android zero-day vulnerabilities actively abused. Update as soon as you can I spoke to a task scammer. Here’s how it went Android...

What is real-time protection and why do you need it?

The constant barrage of cyber threats can be overwhelming for all of us. And, as those threats evolve and attackers find new ways to compromise us, we need a way to keep on top of everything nasty that’s thrown our way. Malwarebytes’ free version tackles and reactively resolves threats already on...

Watch out for tech support scams lurking in sponsored search results

This blog post was written based on research carried out by Jérôme Segura. A campaign using sponsored search results is targeting home users and taking them to tech support scams. Sponsored search results are the ones that are listed at the top of search results and are labelled "Sponsored". They...

Should you share your location with your partner?

Every relationship has its disagreements. Who takes out the trash and washes the dishes? Who plans the meals and writes out the grocery list? And when is it okay to start tracking one another’s location? Location sharing is becoming the norm between romantic partners—50% of people valued location...