Shrootless: Microsoft finds Apple macOS vulnerability

Microsoft researchers have discovered a vulnerability in macOS, dubbed Shrootless, that can allow attackers to bypass System Integrity Protection SIP and perform malicious activities, such as gaining root privileges and installing rootkits on vulnerable devices. Microsoft reported the Shrootless...

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...

Watch what you send on anonymous SMS websites

Its a good idea to try and keep certain things private. For example, people have been using anonymous email services for years. These either hide your real email address, or replace it entirely for specific tasks. Folks will go one step further, setting aliases for each service they sign up to. I...

Second colossal LinkedIn “breach” in 3 months, almost all users affected

LinkedIn has reportedly been breached—again—following reports of a massive sale of information scraped from 500M LinkedIn user profiles in the underground in May. According to Privacy Shark, the VPN company who first reported on this incident, a seller called TomLiner showed them he was in...

Why MITRE ATT&CK matters—Choosing alert quality over quantity

Round 3 Carbanak/FIN7 results evaluation Last month, the researchers at MITRE Engenuity released the results of their most recent ATT&CK Evaluation, offering businesses an opportunity to make informed choices about their own security needs. This year, by modeling the ATT&CK testing after attack...

FIN7 sysadmin behind “billions in damage” gets 10 years

In 2018 three high-ranking members of a sophisticated international cybercrime group operating out of Eastern Europe were arrested and taken into custody by US authorities. Ukrainian nationals Dmytro Fedorov, Fedir Hladyr, and Andrii Kolpakov, were members of a prolific hacking group widely known...

ProxyLogon PoCs trigger a game of whack-a-mole

As we reported recently, the use of the Microsoft Exchange Server ProxyLogon vulnerabilities has gone from “limited and targeted attacks” to a full-size panic in no time. Criminal activities, ranging in severity from planting crypto-miners to deploying ransomware, and conducted by numerous groups...

Cybercriminals want your cloud services accounts, CISA warns

On January 13 the Cybersecurity and Infrastructure Security Agency CISA issued a warning about several recent successful cyberattacks on various organizations’ cloud services. What methods did the attackers use? In the initial phase, the victims were targeted by phishing emails trying to capture...

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...

The many ways you can be scammed on Facebook, part II

In part 1 of this article series, we looked at data mining schemes, scam ad campaigns, concert tickets scams, and PayPal fund transfer scams. Today, we continue to list down the other scams you might encounter on Facebook. Bitcoin trading scam Who would have thought that a "simple" phishing schem...

Fake COVID-19 survey hides ransomware in Canadian university attack

This post was authored by Jérôme Segura with contributions from Hossein Jazi, Hasherezade and Marcelo Rivero. In recent weeks, weve observed a number of phishing attacks against universities worldwide which we attributed to the Silent Librarian APT group. On October 19, we identified a new phishi...

Threat spotlight: WastedLocker, customized ransomware

WastedLocker is a new ransomware operated by a malware exploitation gang commonly known as the Evil Corp gang. The same gang that is associated with Dridex and BitPaymer. The attribution is not based on the malware variants as WastedLocker is very different from BitPaymer. What was kept was the...

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...

A week in security (December 2 – December 8)

Last week on Malwarebytes Labs, we took a look at a new version of the IcedID Trojan, described web skimmers up to no good, and took a deep dive into containerization. We also explored a report bringing bad news for organizations and insider threats, and threw a spotlight on a video game phish...

Explained: What is containerization?

Containerization. Another one of those tech buzzwords folks love to say but often have no idea what it means. A better way to organize children's toys? The act of bringing tupperware out to dinner to safely transport home leftovers? Another name for Russian dolls? Containerization is, of course,...

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...

Google’s Nest fiasco harms user trust and invades their privacy

Technology companies, lawmakers, privacy advocates, and everyday consumers likely disagree about exactly how a company should go about collecting user data. But, following a trust-shattering move by Google last month regarding its Nest Secure product, consensus on one issue has emerged: Companies...

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...

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...

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,...

Winning the battle against PUPs on your computer and in court

I know very few people, other than lawyers, that get excited about corporate court cases. But, I want to share with you a recent decision that I believe is cause for every computer user to celebrate. This week, a United States District Court judge ruled in Malwarebytes' favor, dismissing a lawsui...

When an “Outstanding” rating from CNET isn’t enough

The editors at respected tech site CNET/Download.com recently awarded Malwarebytes for Windows with an “outstanding” rating of 4.5 stars out of five. In the review, editor Tom McNamara recommended Malwarebytes because the scanning engine is of “high quality,” it works well with Windows 10, and do...

Fake DHS email – “Give us $350 in the next 24 hours”

Who likes threats? Nobody, as it turns out. That hasn't stopped scammers from jumping on the menacing email train - next stop, your inbox. Every now and then, we see the 419 "Hitman deployed to kill you" missive doing the rounds. On a similar threatening note, we have a fake DHS notification...

Terror EK actor experiments with URL shortener fraud

Terror EK is an exploit kit made from a mishmash of stolen code and with very limited distribution. In the past few months, we have seen a few minor updates to its code base which remains largely simplistic in comparison to professional-grade exploit kits of the past such as Angler EK, or...

Fake Claude search results lure Mac users into ClickFix attack

Researchers found that cybercriminals are using sponsored search results and shared Claude chats to lure victims into a typical ClickFix attack to install malware on macOS devices. ClickFix is a social engineering method that tricks users into infecting their own device with malware. Users are...

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...

Android vulnerability used in targeted attacks patched by Google

Google has released patches for 46 vulnerabilities in Android, including a remote code execution RCE vulnerability that it says has been used in limited, targeted attacks. You can find your device’s Android version number, security update level, and Google Play system level in your Settings app...

Criminal record database of millions of Americans dumped online

A cybercriminal going by the names of EquationCorp and USDoD has released an enormous database containing the criminal records of millions of Americans. The database is said to contain 70 million rows of data. Post by USDoD on a breach forum The leaked database is said to include full names, date...

Google ad for Facebook redirects to scam

Today, we are looking at a malicious ad campaign targeting Facebook users via Google search. It is well-known that tech support scammers attract new victims by buying ads for certain keywords related to their audience. What is perhaps less known is how it is even possible to impersonate top brand...

Info-stealers can steal cookies for permanent access to your Google account

Hackers have found a way to gain unauthorized access to Google accounts, bypassing any multi-factor authentication MFA the user may have set up. To do this they steal authentication cookies and then extend their lifespan. It doesn’t even help if the owner of the account changes their password...

Explained: SMTP smuggling

SMTP smuggling is a technique that allows an attacker to send an email from pretty much any address they like. The intended goal is email spoofing—sending emails with false sender addresses. Email spoofing allows criminals to make malicious emails more believable. Let’s take a closer look at what...

Europol lifts the lid on cybercrime tactics

The European Union Agency for Law Enforcement Cooperation Europol, has published a report that examines developments in cyberattacks, discussing new methodologies and threats observed by Europols operational analysts. The report also discusses the criminal organizations behind cyberattacks and th...

Warning issued over increased activity of TrueBot malware

In a joint advisory, the Cybersecurity and Infrastructure Security Agency CISA, the Federal Bureau of Investigation FBI, the Multi-State Information Sharing and Analysis Center MS-ISAC, and the Canadian Centre for Cyber Security CCCS have warned about newly identified TrueBot malware variants use...

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...

A week in security (Nov 1 – Nov 7)

Last week on Malwarebytes Labs Celebrity jewelry house Graff falls victim to ransomware Lessons from a real-life ransomware attack Is Apples Safari browser the last, best hope for web privacy? What is Twitch? Google patches zero-day vulnerability, and others, in Android Zuckerbergs Metaverse, and...

US government and private sector agree to invest time, money in cybersecurity

In the wake of several high-profile ransomware attacks against critical infrastructure and major organizations in the last few months, President Biden met with private sector and education leaders to discuss a whole-of-nation effort needed to address cybersecurity threats and bolster the nation’s...

How to spot a DocuSign phish and what to do about it

Phishing scammers love well known brand names, because people trust them, and their email designs are easy to rip off. And the brands phishers like most are the ones youre expecting to hear from, or wouldnt be surprised to hear from, like Amazon or DHL. Now you can add DocuSign to that list...

Katie Moussouris hacked Clubhouse. Her emails went unanswered for weeks: Lock and Code S02E15

Nearly one year after the exclusive app Clubhouse launched on the iOS store, its popularity skyrocketed. The app, which is now out of beta, lets users drop into spontaneous audio conversations that, once they are over, are over. With COVID lockdown procedures separating many people around the wor...

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...

Using iPhones and AirTags to sneak data out of air-gapped networks

Someone has found an extraordinary way to exfiltrate data by piggybacking data on the backs of unsuspecting iPhones. Say what? A researcher has found out that it is possible to upload arbitrary data from non-internet-connected devices by sending Bluetooth Low Energy BLE broadcasts to nearby Apple...

FBI face recognition trawl finds Capitol rioter via his girlfriend’s Instagram

Facial recognition tech is in the news again after the FBI discovered the identify of one of the Capitol rioters by using facial recognition software on his girlfriends Instagram posts. It may sound scary and invasive, but in truth, what’s happening isn’t particularly new. In this case, we have...

FBI warns of increase in PYSA ransomware attacks targeting education

On March 16, the Federal Bureau of Investigation FBI issued a "Flash" alert on PYSA ransomware after an uptick on attacks this month against institutions in the education sector, particularly higher ed, K-12, and seminaries. According to the alert PDF, the United Kingdom and 12 states in the US...

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...

Missing person scams: what to watch out for

Social media has a long history of people asking for help or giving advice to other users. One common feature is the ubiquitous “missing person” post. You’ve almost certainly seen one, and may well have amplified such a Facebook post, or Tweet, or even blog. The sheer reach and virality of social...

The impact of COVID-19 on healthcare cybersecurity

As if stress levels in the healthcare industry weren’t high enough due to the COVID-19 pandemic, risks to its already fragile cybersecurity infrastructure are at an all-time high. From increased cyberattacks to exacerbated vulnerabilities to costly human errors, if healthcare cybersecurity wasnt...

It’s baaaack: Public cyber enemy Emotet has returned

It was never a question of "if" but "when". After five months of absence, the dreaded Emotet has returned. Following several false alarms over the last few weeks, a spam campaign was first spotted on July 13 showing signs of a likely comeback. The Emotet botnets started pushing malspam actively o...

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...

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...