Stop telephoning me-eh-eh-eh-eh: robocalls explained

If you've ever answered a call from anyone outside your contact list only to hear a recorded message playing back at you, you have just been robocalled. Unfortunately for American consumers, this happens several times a day, seven days a week. Suffice to say, this is beyond annoying—and it's...

When you shouldn’t trust a trusted root certificate

Root certificates are the cornerstone of authentication and security in software and on the Internet. They're issued by a certified authority CA and, essentially, verify that the software/website owner is who they say they are. We have talked about certificates in general before, but a recent eve...

New Android Trojan malware discovered in Google Play

A new piece of mobile malware has been discovered in Google Play masquerading as multiple apps: an alarm clock app, a QR scanner app, a compass app, a photo editor app, an Internet speed test app, and a file explorer app. According to Google Play data, all were last updated between October and...

A week in security (July 17 – July 23)

Over the last week, we have covered Play Protect, android’s new security system and how the Dutch police ran Hansa Market after the take down of Alpha Bay, both major players on the Dark Web. We also provided some tips on how to stay cyber safe this summer. We also saw how the Terror exploit kit...

What happens to your data when you die? (Lock and Code S07E17)

This week on the Lock and Code podcast … You will die. Your data will not. The afterlife of our information is a recent phenomenon, and some of the companies with the most to sort through are still just figuring it out. As far back as 2007, Facebook was forced to reckon with mass grief when users...

24 billion stolen records exposed online. Here’s what to do

A newly discovered database containing 24 billion stolen records is a reminder that personal information from data breaches, phishing campaigns, and infostealer infections continues to circulate online. The collection was exposed on the internet before being taken offline. While researchers can't...

Apple warns people of mercenary attacks via threat notification system

Apple has reportedly sent alerts to individuals in 92 nations on Wednesday, April 10, to say its detected that they may have been a victim of a mercenary attack. The company says it has sent out these types of threat notifications to over 150 countries since the start in 2021. Mercenary spyware i...

[updated] Ivanti Sentry critical vulnerability—don't play dice, patch

Ivanti has published a security blog post about a vulnerability in Ivanti Sentry, formerly MobileIron Sentry. Successful exploitation of the vulnerability would enable an unauthenticated attacker to access some sensitive APIs that are used to configure Ivanti Sentry on the administrator portal...

The ransomware landscape changes as fewer victims decide to pay

Fewer victims are choosing to pay their ransomware extorters, especially among large enterprises, according to a recent investigation from Coveware. As a result of this, and other circumstances, we can see some shifts in the way that ransomware groups and their affiliates work. Large organization...

MakeMoney malvertising campaign adds fake update template

Malware authors and distributors are following the ebbs and flow of the threat landscape. One campaign we have tracked for a numbers of years recently introduced a new scheme to possibly completely move away from drive-by downloads via exploit kit. In this quick blog post, we will look at this ne...

NGINX zero-day vulnerability: Check if you’re affected

On April 9, hacking group BlueHornet tweeted about an experimental exploit for NGINX 1.18 and promised to warn companies affected by it. On April 10, BlueHornet claimed to have breached the China branch of UBS Securities using the NGINX vulnerability. All we learned on Twitter was that a new...

A week in security (June 28 – July 4)

Last week on Malwarebytes Labs: Is it Game Over for VR Advergaming? Lil’ skimmer, the Magecart impersonator What is the WireGuard VPN protocol? Binance receives the ban hammer from UK’s FCA Fired by algorithm: The future’s here and it’s a robot wearing a white collar Second colossal Linkedin...

A week in security (April 12 – 18)

Last week on Malwarebytes Labs, our podcast featured Troy Hunt, Chloé Messdaghi, and Tanya Janca who discussed security fatigue with us. We announced the release of the Malwarebytes SMB Cybersecurity Trust & Confidence Report 2021, a first-of-its-kind survey of the hardworking IT professionals on...

A week in security (January 25 – January 31)

January 28 was Data Privacy Day, but for Malwarebytes Labs, it was Data Privacy Week. As such, were packed with more privacy coverage than you can shake a stick at, starting with some practical steps on how to make your online life private and secure, and why privacy is core to a safer internet. ...

Lock and Code S1Ep2: On the challenges of managed service providers

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 two representatives from an Atlanta-based managed service provider—a manager of engineering services and a data center architect—about the daily challeng...

United States government-funded phones come pre-installed with unremovable malware

UPDATE: January 10, 2020 At time of original publication, we were not yet able to replicate the malware Android./Trojan.HiddenAds being dropped on our test device, though multiple users had reported that a variant of HiddenAds suddenly installed on their UMX mobile phone. As of today, we are now...

Removing the jam in your printer security

Printers are an important, invisible—albeit sometimes loud—component of the office. But all too often they’re filled with mystery meat icons, peculiar blinking lights, or error messages with no instruction manual to hand. No problem, you can just print at the next station! Wrong. Printers also...

Mobile Menace Monday: top five scariest mobile threats

In the spirit of this upcoming Halloween season, we thought we'd provide you with a list of the top five scariest mobile threats in our book. The list is organized from least to most haunting, based on my own humble opinion gathered from several years as a mobile threat researcher. Of course, my...

A week in security (October 15 – 21)

Last week on Malwarebytes Labs, we went over how to build your own motion-activated security camera, wondered whether FIDO is the future instrument to replace passwords and usernames, informed you about information operations on Twitter, and released our Q3 Malwarebytes Labs Cybercrime Tactics an...

6 sure signs someone is phishing you—besides email

There are several common and, unfortunately, frequently successful avenues of attack that cybercriminals can use to part you from your personal contact and financial information. These phishing attack methods include email, phone calls, corrupted software or apps, social media, advertisements, an...

A month of giveaway spam on Twitter

We've observed a low level spam campaign working its way through Twitter, with just under 2,000 posts visible on public search since September 1. Click to enlarge The posts promote what appears to be CBD oil. For those who don't know And I was one of them—still not sure if this oil is supposed to...

Explained: regular expression (regex)

Regular expression, or "regex" for short, is a mathematical term for the theory used to describe regular languages. But in computing, regexes are used to search for patterns in files and databases, and their functionality is incorporated into many modern programming languages. Regex search patter...

Official Cardi B website plagued by spammers

We come bearing tidings of proper website maintenance and general housekeeping for singer Cardi B or rather, for her web development team. At first glance, it appeared as though her website had been hacked a few days ago. But a look under the hood told a different story. We were surprised to see...

Explained: What is big data?

If the pile of manure is big enough, you will find a gold coin in it eventually. This saying is used often to explain why anyone would use big data. Needless to say, in this day and age, the piles of data are so big, you might end up finding a pirate’s treasure. How big is the pile? But when is t...

Social media: A treasure trove of spam and scams

There are two kinds of spam associated with social media. There are spam ads that actually live on social media, and there is spam that comes in your inbox, courtesy of social media. Both thrive by using data from your social media accounts. But how do spammers know how to target you and send you...

How the EU intends to battle fake news

Last week the European Union issued a press release to announce their next steps against fake news. These steps will be the launch of a public consultation and the setup of a high-level expert group representing academics, online platforms, news media, and civil society organizations. The first...

A week in security (October 9 – October 15)

Last week on the Labs blog, we talked about GDPR as part of our series in the National Cyber Security Awareness Month NCSAM. We also discussed a new method for phishing Apple ID passwords and the possible ramifications. We analyzed the malvertising chain due to a script that was found on popular...

Elaborate scripting-fu used in espionage attack against Saudi Arabia Government entity

This post was co-authored by David Sánchez and Jérôme Segura We recently came across a campaign targeting a Saudi Arabia Government entity via a malicious Word document which at first reminded us of an attack we had previously described on this blog. In our previous research, we detailed how an...

[Updated] Infected CCleaner downloads from official servers

Update 9/19/2017: Avast posted a clarification explaining what happened and giving a timeline of the events. One point we should take note of is that the breach preceded the take-over of Piriform by Avast. Users that are unsure whether they were affected by this and whether their data may have be...

Fake verification pages are stealing Steam accounts from players

Online gamers should watch out for a convincing scam that aims to steal your Steam account. The scam uses fake FACEIT verification pages that look legitimate, complete with official branding, working links, and what appears to be a real Steam login window. By the time it asks for your password,...

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...

Tor Browser and Firefox users should update to fix actively exploited vulnerability

Mozilla has announced a security fix for its Firefox browser which also impacts the closely related Tor Browser. The new version fixes one critical security vulnerability which is reportedly under active exploitation. To address the flaw, both Mozilla and Tor recommend that users update their...

Cisco IOS XE vulnerability widely exploited in the wild

An authentication bypass affecting Cisco IOS X was disclosed on October 16, 2023. Researchers have found since then that the vulnerability is widely being exploited in the wild to help install implants on affected switches and routers. Cisco IOS XE is a universally deployed Internetworking...

US dangles $10 million reward for information about Cl0p ransomware gang

The US Department of States national security rewards program, Rewards for Justice RFJ, is offering a reward of up to $10 million for information linking the Cl0p ransomware gang, or any other malicious cyber actors targeting US critical infrastructure, to a foreign government. Advisory from...

Sponsored Twitter post uses fake BBC News site to boost slippery oil trading app

A sponsored post on Twitter promises to offer the benefits of obtaining citizenship, but really just wants to lure you into some form of Forex trading AI scheme. This tangled web also includes faked BBC web pages and suspicious-looking website reviews to round the whole thing off. Shall we take a...

Google ads lead to major malvertising campaign

Fraudsters have long been leveraging the shady corners of the internet to place malicious adverts, leading users to various scams. However, every now and again we see a campaign that goes mainstream and targets some of the worlds top brands. Case in point, we recently uncovered a malvertising cha...

Extortionists target restaurants, demand money to take down bad reviews

Restaurants and other eating establishments are being targeted by extortionists who post fake reviews online and then offer to remove them in exchange for a gift card. The possibility has always existed to leave poor reviews on Google Maps and elsewhere. However, seeing fraudsters get organised a...

Update now! Mozilla fixes security vulnerabilities and introduces a new privacy feature for Firefox

Mozilla released version 102.0 of the Firefox browser to Release channel users on June 28, 2022. The new version fixes 20 security vulnerabilities, five of which are classified as “High”. The new version also comes with a new privacy feature that strips parameters from URLs that track you around...

Escobar is the new Android banking Trojan we’ve met before

Aberebot, a known Android banking Trojan, has changed its name and returned loaded with new features. First spotted by @MalwareHunterTeam in early March, this mobile variant was renamed "Escobar"—a homage to the Colombian drug baron—and disguised itself as a McAfee app. It went by the package nam...

The three most significant cyberattacks of 2021

People that predict tomorrow’s weather by looking at today’s are often right. Cloudy today? Itll probably be cloudy tomorrow. The same is often true for cybersecurity threats. Looking back at 2021 it looks a lot like 2020: A lot of ransomware attacks. So, when I was asked to write about the three...

Beware card skimmers this Black Friday

The UKs top cybercops are urging owners of small online shops to "protect their customers and profits" by guarding against card skimmers in the frenetic shopping period that starts with Black Friday, which lands on November 26 this year. The warning comes from the National Cyber Security Centre...

A bug is about to confuse a lot of computers by turning back time 20 years

For those of you that remember the fuss about the Y2K bug, this story may sound familiar. The Cybersecurity & Infrastructure Security Agency CISA has issued a warning to Critical Infrastructure CI owners and operators, and other users who get the time from GPS, about a GPS Daemon GPSD bug in GPSD...

Gamers beware: The risks of Real Money Trading (RMT) explained

Any game with an online component can be at risk from a practice known as Real Money Trading RMT, where in-game items, artefacts, characters and the like are sold for real money. It’s a big problem for developers, especially in competitive and / or massively multiplayer online role-playing game...

ProtonMail hands user’s IP address and device info to police, showing the limits of private email

They say there’s two sides to every story. Depending on your point of view, you may have heard a recent story thats either about overreaching law enforcement and protestors exposed by organisations happy to hand over revealing data despite saying they wont. Or: BREAKING: legitimate business...

NSA issues advice for securing wireless devices

By releasing an information sheet that provides guidance on securing wireless devices while in public pdf—for National Security System, Department of Defense, and Defense Industrial Base teleworkers—the NSA has provided useful information on malicious techniques used by cyber actors, and ways to...

Does using a VPN slow down your Internet?

A Virtual Private Network VPN can stop others from snooping on or tampering with your Internet traffic. It does this by concealing your traffic inside an encrypted tunnel between you and your VPN provider. And because your traffic appears to join the the Internet from your VPN providers computer...

Cobalt Strike, a penetration testing tool abused by criminals

If you were to compose a list of tools and software developed by security and privacy defenders that ended up being abused by the bad guys, then Cobalt Strike would unfortunately be near the top of the list. Maybe only Metasploit could give it a run for the first place ranking. Metasploit—probabl...

Watch out! Android Flubot spyware is spreading fast

Using a proven method of text messages about missed deliveries, an old player on the Android malware stage has returned for an encore. This time it seems to be very active, especially in the UK where Android users are being targeted by text messages containing a link to a particularly nasty piece...

“Huge upsurge” in DDoS attacks during pandemic

Researchers at Netscout have released a report analyzing the malicious internet traffic of 2020 and comparing it to the years before. Some of the results were as expected: Brute-forcing credentials and more targeting towards internet-connected devices were foreseeable and have been discussed at...

Web skimmer phishes credit card data via rogue payment service platform

Heading into the holiday shopping season, we have been tracking increased activity from a threat group registering domains for skimming and phishing campaigns. While most of the campaigns implemented a web skimmer in the typical fashion—grabbing and exfiltrating data from a merchant's checkout pa...