Scammers, profiteers, and shady sites? It must be tax season

US tax season is upon us, a time of the year when a special kind of vermin comes crawling out of the woodwork: tax scammers! Not that their goals are any different from any other scammers. They want your hard-earned dollars in their pockets. Most of the tax-related attacks follow a few tried and...

Retrohunting APT37: North Korean APT used VBA self decode technique to inject RokRat

This post was authored by Hossein Jazi On December 7 2020 we identified a malicious document uploaded to Virus Total which was purporting to be a meeting request likely used to target the government of South Korea. The meeting date mentioned in the document was 23 Jan 2020, which aligns with the...

Malsmoke operators abandon exploit kits in favor of social engineering scheme

Exploit kits continue to be used as a malware delivery platform. In 2020, weve observed a number of different malvertising campaigns leading to RIG, Fallout, Spelevo and Purple Fox, among others. And, in September, we put out a blog post detailing a surge in malvertising via adult websites. One o...

Lock and Code S1Ep18: Finding consumer value in Cybersecurity Awareness Month with Jamie Court

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 Jamie Court, president of the non-profit advocacy group Consumer Watchdog, about the consumer value in Cybersecurity Awareness Month. Launched initially ...

Shining a light on “Silent Night” Zloader/Zbot

When it comes to banking Trojans, ZeuS is probably the most famous one ever released. Since its source code originally leaked in 2011, several new variants proliferated online. That includes a past fork called Terdot Zbot/Zloader, which we extensively covered in 2017. But recently, we observed...

New Mac variant of Lazarus Dacls RAT distributed via Trojanized 2FA app

This blog post was authored by Hossein Jazi, Thomas Reed and Jérôme Segura. We recently identified what we believe is a new variant of the Dacls Remote Access Trojan RAT associated with North Korea's Lazarus group, designed specifically for the Mac operating system. Dacls is a RAT that was...

Spear phishing 101: what you need to know

Phishing, a cyberattack method as old as viruses and Nigerian Princes, continues to be one of the most popular means of initiating a breach against individuals and organizations, even in 2020. The tactic is so effective, it has spawned a multitude of sub-methods, including smishing phishing via...

Ransomware continues assault against cities and businesses

Ransomware continues to make waves in the US, forcing multiple cities and organizations into tough choices. Pressed for cash and time, local government organizations are left with few options: Either pay the ransom as soon as possible and encourage criminals to continue bringing essential service...

Data and device security for domestic abuse survivors

For more than a month, Malwarebytes has worked with advocacy groups, law enforcement, and cybersecurity researchers to deliver helpful information in fighting stalkerware—the disturbing cyber threat that enables domestic abusers to spy on their partners’ digital and physical lives. While we’ve...

Mobile Menace Monday: SMS phishing attacks target the job market

Recently, a co-worker received an enticing SMS message from ASPXPPZUPS Human Resources. It read: Tired of your old job? Join our team today, work from home and earn $6,200 per month: hire-me-zvcbrvpffy.hidden.com. Could it be that our dream job awaits via random text message? On the contrary, thi...

Instagram story spam claims free Apple Watch

I have to admit, I'm not 100 percent sure who Elton Castee is. "Who's that?" you ask? Digging around revealed that he's big on YouTube, has done some films, and raises money for dogs, which is very cool. He's also popular on Instagram, with 400k+ followers. With that in mind, we've seen a few...

Parenting in the Digital World: a review

Before I became a new mum not so long ago, I did the best I could to prepare myself to take care of my little one by reading a lot books. From learning how to discern possible meanings behind baby's various cries to finding out what you can and can't feed your baby once they begin eating solids. ...

New Crossrider variant installs configuration profiles on Macs

A new variant of the Crossrider adware has been spotted that is infecting Macs in a unique way. For the most part, this variant is still quite ordinary, doing some of the same old things that we've been seeing for years in Mac adware. However, the use of a configuration profile introduces a uniqu...

You down with P2P? 10 tips to secure your mobile payment app

If you look at the figures, you cannot deny that the eCommerce industry is steadily growing. More and more people are doing their shopping online, not only for products and services geared toward the use of technologies and the Internet, but also for items previously only found in brick and morta...

An in-depth malware analysis of QuantLoader

This guest post is written by Vishal Thakur, CSIRT/Salesforce. For more on Vishal, read his bio at the end of the blog. QuantLoader is a Trojan downloader that has been available for sale on underground forums for quite some time now. It has been used in campaigns serving a range of malware,...

A week in security (November 13 – November 19)

Last week, we gave you some tips for the inevitable online chaos that is Cyber Monday, explained how "trusted" root certificates can sometimes be anything but, and explored the strange world of catphishing. We also pulled apart some malware found on Google Play and laid out the specifics of the...

Traditional AV solutions shown ineffective in real-time global heat map

It's no secret that antivirus technology AV has faced increased scrutiny in the tech industry for quite some time. With signature-based detection methods, traditional AV solutions are simply weak against unknown malware and other malicious content. Meanwhile, consumers and businesses continue to...

Locky ransomware returns to the game with two new flavors

We recently observed a fresh malicious spam campaign pushed through the Necurs botnet distributing so far, two new variants of Locky ransomware. In our last Q2 2017 report on tactics and techniques, we mentioned that Locky ransomware had reappeared with a new extension, but went dark again for...

A week in security (June 22 – June 28)

Last week on Malwarebytes Labs: Malware steals Chrome session cookies to take over your accounts Beware of "Parcel Expert" job offers: They’re parcel mule scams Update Chrome to patch critical browser security flaws Fake domain renewal emails trick website owners into paying scammers Elite networ...

Update your Chrome to fix serious actively exploited vulnerability

Google released an emergency update for the Chrome browser to patch an actively exploited vulnerability that could have serious ramifications. The update brings the Stable channel to versions 136.0.7103.113/.114 for Windows and Mac and 136.0.7103.113 for Linux. The easiest way to update Chrome is...

Booking.com phish uses fake CAPTCHAs to trick hotel staff into downloading malware

A new phishing campaign that uses the fake CAPTCHA websites we reported about recently is targeting hotel staff in a likely attempt to access customer data, according to research from ThreatDown. Here's how it works: Cybercriminals send a fake Booking.com email to a hotel’s email address, asking...

Apple users: Update your devices now to patch zero-day vulnerability

Apple has released a host of security updates across many devices, including for a zero-day bug which is being actively exploited in iOS. Apple said: "A malicious application may be able to elevate privileges. Apple is aware of a report that this issue may have been actively exploited against...

Big name TikTok accounts hijacked after opening DM

High profile TikTok accounts, including CNN, Sony, and—er­—Paris Hilton have been targeted in a recent attack. CNN was the first account takeover that made the news, with Semafor reporting that the account was down for several days after the incident. According to Forbes, the attack happens witho...

How to back up your Windows 10/11 PC to OneDrive

They say the only backup you ever regret is the one you didnt make. Starting in Windows 10, the operating system OS now comes with a built-in tool to back up your files, themes, some settings, many of your installed apps, and your Wi-Fi information. First, you’ll need to sign in with your Microso...

Atomic Stealer rings in the new year with updated version

Last year, we documented malware distribution campaigns both via malvertising and compromised sites delivering Atomic Stealer AMOS onto Mac users. This stealer has proven to be quite popular in the criminal underground and its developers have been adding new features to justify its hefty...

Oops! Black Basta ransomware flubs encryption

Researchers at SRLabs have made a decryption tool available for Black Basta ransomware, allowing some victims of the group to decrypt files without paying a ransom. The decryptor works for victims whose files were encrypted between November 2022 and December 2023. The decryptor, called Black Bast...

Explained: Domain fronting

Domain fronting is a technique of using different domain names on the same HTTPS connection. Put simply, domain fronting hides your traffic when connecting to a specific website. It routes traffic through a larger platform, masking the true destination in the process. The technique became popular...

Introducing ThreatDown: A new chapter for Malwarebytes

Since I started Malwarebytes 15 years ago the threat landscape has changed. Our offerings have evolved. And now the next chapter of our journey begins today. How did we get here? My first cyber “combatant” was an early form of adware running amok on my family’s computer. Removing it was a team...

Fake DDoS services set up to trap cybercriminals

The "online criminal marketplace" has been disrupted via several fake Distributed Denial of Service DDoS tools, according to an announcement from The British National Crime Agency NCA. Not everyone on an underground forum is up to no good. Some folks register on hacking sites and services out of...

Warning issued over Royal ransomware

As part of its StopRansomware effort, the Cybersecurity and Infrastructure Security Agency CISA has published a Cybersecurity Advisory CSA about Royal ransomware. Royal ransomware is a Ransomware-as-a-service Raas that first made an appearance in January 2022. In September of that year, it began...

Multiple schools hit by Vice Society ransomware attack

The real world impact of cybercrime rears its head once more, with word that 14 schools in the UK have been caught out by ransomware. The schools, attacked by the group known as Vice Society, have had multiple documents leaked online in the wake of the attack. One of the primary schools...

Update now! Multiple vulnerabilities patched in Google Chrome

Google has announced an update for the Chrome browser that includes 32 security fixes. The severity rating for one of the patched vulnerabilities is Critical. The stable channel was promoted to 102.0.5005.61/62/63 for Windows, and 102.0.5005.61 for Mac and Linux. Critical Google rates...

Gmail-linked Facebook accounts vulnerable to attack using a chain of bugs—now fixed

A security researcher has disclosed how he chained together multiple bugs in order to take over Facebook accounts that were linked to a Gmail account. Youssef Sammouda states it was possible to target all Facebook users but that it was more complicated to develop an exploit, and using Gmail was...

APT34 targets Jordan Government using new Saitama backdoor

On April 26th, we identified a suspicious email that targeted a government official from Jordans foreign ministry. The email contained a malicious Excel document that drops a new backdoor named Saitama. Following our investigation, we were able to attribute this attack to the known Iranian Actor...

Millions of GoDaddy customer data compromised in breach

Domain name registrar giant and hosting provider GoDaddy yesterday disclosed to the Securities and Exchange Commission SEC that it had suffered a security breach. In the notice, it explained it had been compromised via an "unauthorized third-party access to our Managed WordPress hosting...

Microsoft Exchange Autodiscover flaw reveals users’ passwords

Researchers have been able to get hold of 372,072 Windows domain credentials, including 96,671 unique credentials, in slightly over 4 months by setting up a Microsoft Exchange server and using Autodiscover domains. The credentials that are being leaked are valid Windows domain credentials used to...

Lil’ skimmer, the Magecart impersonator

This blog post was authored by Jérôme Segura A very common practice among criminals consists of mimicking legitimate infrastructure when registering new domain names. This is very true for Magecart threat actors who love to impersonate Google, jQuery and many other popular brands. In this post we...

MITRE introduces D3FEND framework

The US National Security Agency NSA has announced it will fund the development of a knowledge base of defensive countermeasures for the most common techniques used by malicious threat actors. The project will be made available through MITRE and will be called D3FEND as it complements MITRE’s...

City of Liège hit by ransomware, Ryuk suspected

Liège, the third largest city in Belgium, and a major educational hub, has been hit by a ransomware attack, disrupting its IT services and network. The municipality of Lieges official website, which was translated from the French. According to its official website pictures above: The City of Lièg...

Cybercrime, fraud, and insider threats increased in 2020 in the UK, report says

Since the initial lockdown, we have seen the rise of certain types of cybercrime, including scams and fraud campaigns that either bank on the global COVID-19 pandemic or take advantage of potential victims that adhere to work-from-home measures. In the UK, the National Crime Agency NCA has...

Why you need to trust your VPN: Lock and Code S02E05

This week on Lock and Code, we discuss the top security headlines generated right here on Labs. In addition, we speak to Malwarebytes senior security researcher JP Taggart about the importance of trusting your VPN. Youve likely heard the benefits of using a VPN: You can watch TV shows restricted ...

5 common VPN myths busted

Virtual Private Networks VPNs are popular but often misunderstood. There are many misconceptions about them—misconceptions that may be stopping people from adding a useful layer to their security and privacy defenses. So, let’s do some myth busting. 1. VPNs are for illegal activity Some people...

China’s RedEcho accused of targeting India’s power grids

RedEcho, an advanced persistent threat APT group from China, has attempted to infiltrate the systems behind Indias power grids, according to a threat analysis report from Recorded Future PDF. It appears that what triggered this attempt to gain a foothold in Indias critical power generation and...

A week in security (February 1 – February 7)

Last week on Malwarebytes Labs, we dug into a load of security events. We first peered into how Fonix ransomware was giving up the ghost, swearing off a life of crime and even apologizing for past actions. We looked at a credit card skimmer that found opportunity in the latest Magento 1 hacking...

The most enticing cyberattacks of 2020

This is part one of a two-part series. To read about the strangest cybersecurity events of 2020, read our second story here. In 2020, we experienced a major shift. Much of the world pitched in to limit the spread of the coronavirus, with people changing their daily routines to include a mixture o...

EncroChat system eavesdropped on by law enforcement

Due to the level of sophistication of the attack, and the malware code, we can no longer guarantee the security of your device. This text caused a lot of aggravation, worries, and sleepless nights. No one wants to hear the security of their device has been compromised by a malware attack. The goo...

Keep Zoombombing cybercriminals from dropping a load on your meetings

While shelter in place has left many companies struggling to stay in business during the COVID-19 epidemic, one company in particular has seen its fortunes rise dramatically. Zoom, the US-based maker of teleconferencing software, has become the web conference tool of choice for employees working...

Mac adware is more sophisticated and dangerous than traditional Mac malware

As the data revealed in our State of Malware report showed, Mac threats are on the rise, but they are not the same type of threats experienced by Windows users. Most notably, more traditional forms of malware, such as ransomware, spyware, and backdoors account for over 27 percent of all Windows...

5 tips for building an effective security operations center (SOC)

Security is more than just tools and processes. It is also the people that develop and operate security systems. Creating systems in which security professionals can work efficiently and effectively with current technologies is key to keeping your data and networks secure. Many enterprise...

Emotet is back: botnet springs back to life with new spam campaign

After a fairly long hiatus that lasted nearly four months, Emotet is back with an active spam distribution campaign. For a few weeks, there were signs that the botnet was setting its gears in motion again, as we observed command and control C2 server activity. But this morning, the Trojan started...