US warns of APT groups that can “gain full system access” to some industrial control systems

An "exceptionally rare and dangerous" advanced persistent threat APT malware kit, containing custom-made tools designed to target some of North America’s industrial control systems ICS and supervisory control and data acquisition SCADA devices, appears to have been caught before it could be let...

Watch out for Ukraine donation scammers in Twitter replies

The invasion of Ukraine has been a money making opportunity for scammers since the moment it began: Fake donation sites, bogus Red Cross portals, phishing pages, the works. These scams can also be found on social media. Faking donations on Twitter Some users of social media have become very...

Successful operations against Russian Sandworm and Strontium groups targeting Ukraine revealed

The US Department of Justice DoJ and Microsoft have taken the sting out of two operations believed to be controlled by the Russian Federation’s Main Intelligence Directorate GRU. On Wednesday, the DOJ announced that it had disrupted GRU’s control over thousands of internet-connected firewall...

MITRE ATT&CK® Evaluation results: Malwarebytes’ efficiency, delivered simply, earns high marks

Cybersecurity can be complex work, as security teams need to regularly decipher and prioritize alerts, protect against daily threats, and possibly implement product configuration changes, all while staying abreast of the latest intelligence on new and evolving threats. For organizations that lack...

Cyclops Blink malware: US and UK authorities issue alert

According to a joint security advisory published yesterday by US and UK cybersecurity and law enforcement agencies, a new malware called Cyclops Blink has surfaced to replace the VPNFilter malware attributed to the Sandworm group, which has always been seen as a Russian state-sponsored group...

CISA offers guidance on dealing with information manipulation

Malicious actors use influence operations, like spreading false information, to shape public opinion, undermine trust, amplify division, and create dissension. In response, the Cybersecurity & Infrastructure Security Agency CISA has released CISA Insights: Preparing for and Mitigating Foreign...

Careful! Uber flaw allows anyone to send an email from uber.com

On New Years Eve, Seif Elsallamy @0x21SAFE on Twitter, a bug bounty hunter and security researcher, pointed out a phish-worthy security flaw he found on Uber’s email system. The flaw allowed anyone to send emails on behalf of Uber, meaning they would end with "@uber.com", just like the one below:...

A week in security (Dec 13 – 19)

Last week on Malwarebytes Labs: Spear phish, whale phish, regular phish: What’s the difference? Kronos crippled by ransomware, service may be out for weeks 5 security lessons from 18 months of working from home What SMBs can do to protect against Log4Shell attacks After Log4j, December’s Patch...

5 security lessons from 18 months of working from home

A little more than 20 months ago, many people around the world were asked or instructed to work from home to help slow the spread of COVID-19. It caused a seismic change to the way we all do business. Now, our latest research reveals how IT decision makers security concerns have been changed by...

CronRAT targets Linux servers with e-commerce attacks

There’s an interesting find over at the Sansec blog, wrapping time and date manipulation up with a very smart RAT attack. The file, named CronRAT, isn’t an e-commerce attack compromising payment terminals in physical stores. Rather, it looks to swipe payment details by going after vulnerable web...

What is facial recognition?

Facebook recently announced it would give up on its facial recognition system. Facebook, or Meta, was using software to automatically identify people in images posted to its social network. Since facial recognition has become an increasingly toxic concept in many circles and Facebook was having...

A week in security (Oct 18 – Oct 24)

Last week on Malwarebytes Labs Multiple vulnerabilities in popular WordPress plugin WP Fastest Cache. “Killware”: Is it just as bad as it sounds? REvil ransomware disappears after Tor services hijacked. Protect yourself from BlackMatter ransomware: Advice issued. q-logger skimmer keeps Magecart...

Vaccine passport app leaks users’ personal data

Security and privacy advocates may have cause to worry after all: Portpass, a vaccine passport app in Canada, has been found to have been exposing the personal data of its users for an unknown length of time. On Monday, Canadian Broadcasting Corporation CBC received a tip that "the user profiles ...

What are SSL certificates?

Secure Sockets Layer SSL certificates are what cause your browser to display a padlock icon, indicating that your connection to a websites is secure. Although the padlock may soon be hidden from view, certificates arent going anywhere. Lets start with some definitions and explain some of the...

VideoBytes: Twitter gets hacked!

Hello dear readers, and welcome to the latest and greatest from VideoBytes: a brand new, video feature that we announced just yesterday. On our debut post today, were talking to you about the Twitter hack, in which hackers accessed the Twitter accounts of 130 high profile figures, like Barack...

The face of tomorrow’s cybercrime: Deepfake ransomware explained

While many countries are beginning to ease up on their respective pandemic lock downs—which, in turn, also means that everyone will soon ease into a life that is not quite post-COVID-19—we find ourselves once more on the cusp of change, an outlook that makes some feel anxious and others hopeful...

New Android P includes several security improvements

According to the Android developer Program Overview, the next major version of Android, Android 9.0 or P, is set to arrive soon. Their plans show a final release within the next three months Q3 2018. The end of the Android P beta program is approaching, with the first release candidate built and...

Tech support scammers find new way to jam Google Chrome (updated)

Update 1 2018-02-07: This issue with Google Chrome was reported here and merged here. Update 2 2018-02-07: Firefox and Brave seem to be affected by this bug as well both vendors were informed. During the past quarter we have noted an increase in fake browser alerts pushing tech support scams. Mos...

Tech support scammer tries to sell free software

AmericaGeeks is your typical tech support scam company, but with an extra warming glow of attitude, greed, and complete all-around rudeness. Most scams will gladly take your money by buttering up the victim while simultaneously scaring them into thinking that they are in a dangerous situation wit...

A state of constant uncertainty or uncertain constancy? Fast flux explained

Last August, WireX made headlines. For one thing, it was dubbed the first-known DDoS botnet that used the Android platform. For another, it used a technique that—for those who have been around in the industry for quite a while now—rung familiar in the ears: fast flux. In the context of...

Explained: the cloud

Even if you are reading this post because you have no idea what the cloud is, you might be using it more often than you realize. Twitter, LinkedIn, Dropbox, Google Drive, and Microsoft Office 365 are some of the most well-known cloud apps. Let’s start with a definition of the cloud to get a grip ...

The real problem with ransomware

Ransomware – a specialized form of malware that encrypts files and renders them inaccessible until the victim pays a ransom – is an extremely serious problem and it’s quickly getting worse. The FBI estimated that ransomware payments were $1 billion in 2016, up from “just” $24 million a year...

WinRAR flaw could allow attackers to take control of your computer

Rarlab has released a new version of the popular WinRAR tool to patch a vulnerability that can be abused in remote code execution attacks. The issue is fixed in WinRAR 7.23, but users must install the new version manually because WinRAR still does not offer automatic updates. They also need to ma...

Watch out for renewal scams pretending to be Malwarebytes

Fake subscription renewal notices are doing the rounds again. Some of these scams impersonate Malwarebytes, and we've also seen them reach our customers. You're more likely to trust the message if you're already a customer of the company mentioned in the email. That's what the scammers are counti...

Deepfake posting sites depicting famous women taken down by feds

Thanks to Uncle Sam, anyone trying to find nonconsensual intimate deepfakes on CFake.com and SOCFake.com will be disappointed. The US Departments of Justice DOJ and Homeland Security has seized the two domain names under the TAKE IT DOWN Act. The TAKE IT DOWN Act, signed in May 2025, is the first...

Your phone called. It needs a cleanup.

Does it sometimes take your phone a few minutes to accomplish one simple task? That can be wildly frustrating. But you’re in luck, because we’ve got a free tool that scans your phone for leftover files, temporary data, outdated caches and helps you clean up all that junk. Introducing our Junk...

Catch spyware in the act with Windows Webcam Monitoring

You’re working hard late at night, replying to emails and planning the week ahead. Then suddenly, a PDF file requests access to your camera. Why would a PDF need camera access? Cybercriminals often disguise spyware inside seemingly harmless files and programs. An unexpected request for access to...

Stolen Canvas data was “returned” after hacker agreement, Instructure says

The Instructure/Canvas data breach that has dominated cybersecurity coverage recently has reached a new stage. Millions of students had personal data stolen, with extortion group ShinyHunters claiming credit for the data breach and applying extra pressure for their ransom demands by bothering...

Update WhatsApp now: Two new flaws could expose you to malicious files

Meta has published a new security advisory for messaging app WhatsApp, announcing patches for two vulnerabilities. WhatsApp has fixed two security flaws that could be abused to interfere with how media and attachments are handled on your device. There is no evidence that either bug has been...

Thousands of Facebook accounts stolen by phishing emails sent through Google

Researchers have uncovered a long-running phishing operation that abuses trusted Google services to hijack tens of thousands of Facebook accounts. The compromised Facebook accounts are mainly business and advertiser profiles, which criminals can monetize after gaining access and control. The...

Actively exploited cPanel bug exposes millions of websites to takeover

Security researchers are warning about a newly discovered vulnerability in the widely used web server management software cPanel and WebHost Manager WHM. This is a critical, actively exploited authentication-bypass bug in cPanel/WHM that lets attackers gain administrative access to the interface...

Omnistealer uses the blockchain to steal everything it can

A new infostealer dubbed Omnistealer is turning the blockchain into a permanent malware hosting platform, which is bad news for both companies and everyday users. It’s pretty common for malware to store its payload on a public platform, ideally one that adds some trustworthiness to the download...

This fake Windows support website delivers password-stealing malware

A fake Microsoft support website is tricking people into downloading what looks like a normal Windows update. Instead, it installs malware designed to steal passwords, payment details, and account access. Because the file looks legitimate and avoids detection, it can slip past both users and...

That “job brief” on Google Forms could infect your device

We've identified a campaign using business-related lures, such as job interviews, project briefs, and financial document, to distribute malware, including the PureHVNC Remote Access Trojan RAT. It's not the malware that's new, but how the attack starts. Instead of the usual phishing email or fake...

A DarkSword hangs over unpatched iPhones

Researchers at Google have identified an iOS exploit chain, named DarkSword, that has been used since late last year by multiple actors to infect iPhones with malware in targeted attacks. DarkSword combines six vulnerabilities in iOS and Safari to deploy malware on the device. It demonstrates, on...

Roblox gives predators “powerful tools” to target children, says LA County

Los Angeles County has sued online gaming company Roblox, adding to a series of suits that accuse the virtual worlds platform of misleading parents into thinking it's safe while leaving children exposed to predators and sexually explicit content. The February 19 filing makes LA County the first...

Outlook add-in goes rogue and steals 4,000 credentials and payment data

Researchers found a malicious Microsoft Outlook add-in which was able to steal 4,000 stolen Microsoft account credentials, credit card numbers, and banking security answers. How is it possible that the Microsoft Office Add-in Store ended listing an add-in that silently loaded a phishing kit insid...

Firefox is giving users the AI off switch

Some software providers have decided to lead by example and offer users a choice about the Artificial Intelligence AI features built into their products. The latest example is Mozilla, which now offers users a one-click option to disable generative AI features in the Firefox browser. Audiences ar...

Watch out for AT&T rewards phishing text that wants your personal details

A coworker shared this suspicious SMS where AT&T supposedly warns the recipient that their reward points are about to expire. Phishing attacks are growing increasingly sophisticated, likely with help from AI. They're getting better at mimicking major brands—not just in look, but in behavior...

A week in security (January 5 – January 11)

Last week on Malwarebytes Labs: pcTattletale founder pleads guilty as US cracks down on stalkerware Are we ready for ChatGPT Health? CISA warns of active attacks on HPE OneView and legacy PowerPoint Lego’s Smart Bricks explained: what they do, and what they don’t Fake WinRAR downloads hide malwar...

Inside a purchase order PDF phishing campaign

A PDF named "NEW Purchase Order 52177236.pdf" turned out to be a phishing lure. So we analyzed the phishing script behind it. A customer contacted me when Malwarebytes blocked the link inside a “purchase order” email they had received. Malwarebytes blocked this ionoscloud.com subdomain When I...

PayPal closes loophole that let scammers send real emails with fake purchase notices

After an investigation by BleepingComputer, PayPal closed a loophole that allowed scammers to send emails from the legitimate [email protected] email address. Following reports from people who received emails claiming an automatic payment had been cancelled, BleepingComputer found that...

How private is your VPN?

When you're shopping around for a Virtual Private Network VPN you'll find yourself in a sea of promises like "military-grade encryption!" and "total anonymity!" You can’t scroll two inches without someone waving around these fancy terms. But not all VPNs can be trusted. Some VPNs genuinely protec...

Update Chrome now: Google fixes 13 security issues affecting billions

Google has released an update for its Chrome browser that includes 13 security fixes, four of which are classified as high severity. One of these was found in Chrome’s Digital Credentials feature–a tool that lets you share verified information from your digital wallet with websites so you can pro...

Thousands of online stores at risk as SessionReaper attacks spread

Early September, a security researcher uncovered a new vulnerability in Magento, an open-source e-commerce platform used by thousands of online retailers, and its commercial counterpart Adobe Commerce. It sounds like something straight out of a horror movie: SessionReaper. Behind the cinematic na...

Phishers target 1Password users with convincing fake breach alert

In a very recent and well-targeted phishing attempt, scammers tried to get hold of the 1Password credentials belonging to a Malwarebytes’ employee. Stealing someone’s 1Password login would be like hitting the jackpot for cybercriminals, because they potentially export all the saved logins the...

All Apple users should update after company patches zero-day vulnerability in all platforms

Apple has released security updates for iPhones, iPads and Macs to fix a zero-day vulnerability a vulnerability which Apple was previously unaware of that is reportedly being used in targeted attacks. The updates cover: iOS 18.6.2 and iPadOS 18.6.2 iPhone XS and later, iPad Pro 13-inch, iPad Pro...

Apple patches multiple vulnerabilities in iOS and iPadOS. Update now!

Apple released a security update for iOS and iPadOS to patch multiple vulnerabilities, including one that could leak sensitive information when visiting a malicious website and one that allows an attacker to display false information in the address bar. In total, 29 vulnerabilities were patched,...

Reddit’s new AI-powered tools scan your posts to serve you better ads

Reddit has introduced two Artificial Intelligence AI tools which will use Reddit comments, posts, and conversations to help sellers make the most of the community. Reddit is a social media platform and online forum where users can share and discuss content across a wide range of topics. The...

Booking.com reservation abused as cybercriminals steal from travelers

Robert Woodford, a recruitment marketing specialist, recently shared on LinkedIn how he fell victim to a highly sophisticated scam while booking a hotel in Verona through Booking.com, providing a striking example of how attacks on the hospitality industry affect travelers. After completing a...