Ransomware review: February 2023

This article is based on research by Marcelo Rivero, Malwarebytes' ransomware specialist, who builds a monthly picture of ransomware activity by monitoring the information published by ransomware gangs on their Dark Web leak sites. This information represents victims who were successfully attacke...

Update now! Google patches vulnerabilities for Pixel mobile phones

Googles Pixel Update Bulletin for September included two security patches that are Pixel specific. Both underlying vulnerabilities are rated critical and could lead to privilege escalation and device takeover. The vulnerabilities Publicly disclosed computer security flaws are listed in the Common...

TikTok vulnerability could have allowed hijackers to take over accounts

Microsoft has released a detailed rundown of an issue, now fixed, which was potentially dangerous for users of TikTok. The problem, flagged as a "high-severity vulnerability" by Microsoft, required several steps chained together in order to function. Attackers making use of it could have...

The 3 biggest threats reaching for your antivirus software’s off switch

Having antivirus AV software on your computer is a staple. Modern antivirus offers layered protection—a cybersecurity approach that uses multiple techniques in one package to keep you safe if you download a malicious file from the Internet, find yourself worrying after clicking a link on a direct...

“Seven or eight” zero-days: The failed race to fix Kaseya VSA, with Victor Gevers, Lock and Code S02E13

Kaseya VSA included at least “seven or eight” privately known zero-day vulnerabilities before it suffered a widespread ransomware attack that impacted hundreds of businesses, said Victor Gevers, chair of the Dutch Institute for Vulnerability Disclosure, or DIVD, a volunteer-run organization that...

Website misconfigurations and other errors to avoid

Website owners, listen up: There are lots of things you shouldn’t do with your site, and many more you should avoid with the domains you’re responsible for. Insider malice, bad luck, and the stars aligning in impossible ways can all give your online portfolio a bad hair day. However, if you want ...

APTs and COVID-19: How advanced persistent threats use the coronavirus as a lure

The coronavirus COVID-19 has become a global pandemic, and this is a golden time for attackers to take advantage of our collective fear to increase the likelihood of successful attack. True to form, they've been doing just that: performing spam and spear phishing campaigns using coronavirus as a...

New version of IcedID Trojan uses steganographic payloads

This blog post was authored by @hasherezade, with contributions from @siriurz and Jérôme Segura. Security firm Proofpoint recently published a report about a series of malspam campaigns they attribute to a threat actor called TA2101. Originally targeting German and Italian users with Cobalt Strik...

New Facebook ad reporting tool launches in UK

Last year, well-known consumer advice expert Martin Lewis decided to take Facebook to court for defamation. The cause? Multiple bogus adverts placed on the social network featuring his likeness, appearing via the ad network Outbrain. As a trusted face in consumer causes, scammers bolting Lewis'...

Explained: Payment Service Directive 2 (PSD2)

Payment Service Directive 2 PSD2 is the implementation of a European guideline designed to further harmonize money transfers inside the EU. The ultimate goal of this directive is to simplify payments across borders so that it's as easy as transferring money within the same country. Since the EU w...

Mobile Menace Monday: FakeGift is the gift that keeps on frustrating

Last spring, we found yet another piece of riskware on Google Play we call Android/PUP.Riskware.FakeGift. Based on Hindi characters found in the code, we can assume it originates from India. With over 50,000 installs before being removed from Google Play, FakeGift apparently kept on...

Did my comment on your blog get lost?

If you ever feel bad about your job because of mindless tasks you must perform day after day, or if you're bothered by the fact that your chosen work pays crap, produces nothing useful, and helps no one: have a look at blog comment spammers and breathe a sigh of relief. They make almost any job...

Malware analysis: decoding Emotet, part 2

In part two of our series on decoding Emotet, you can catch up on part 1 here, we'll cover analysis of the PowerShell code. Before we do that, however, it is a good idea to list some of the functions and calls that are used in the code for the execution. System.Runtime.InteropServices.Marshal: us...

Encryption 101: Decryptor’s thought process

In the previous parts 1, 2 and 3 of this series, we covered the basics of encryption, walked through a live example of a ransomware in detail, and talked about encryption weaknesses. In this part of the encryption 101 series, we will begin wrapping it up by going into detail on a ransomware with...

Police investigate sexual assault on an avatar

British police are investigating a case involving a virtual sexual assault of a girls avatar. Even though there was no physical violence involved the incident will be investigated as it has caused psychological trauma. By definition, an avatar is a virtual representation of a user and is driven b...

Update your Android devices now! Google patches two actively exploited vulnerabilities

Google has patched 53 vulnerabilities in its Android October security updates, two of which are known to be actively exploited. Google's security bulletin notes that there are indications that these two vulnerabilities may be under limited, targeted exploitation. If your Android phone is at patch...

Ransomware review: May 2023

This article is based on research by Marcelo Rivero, Malwarebytes' ransomware specialist, who monitors information published by ransomware gangs on their Dark Web sites. In this report, "known attacks" are those where the victim didn't pay a ransom. This provides the best overall picture of...

Law enforcement app SweepWizard leaks data on crime suspects

SweepWizard, an obscure app apparently created by ODIN Intelligence and used by more than 60 law enforcement departments, has a flaw: According to an ethical hacker, a misconfiguration in the app's API application programming interface caused it to unintentionally leak to the open internet a trov...

Clop targets execs, ransomware tactics get another new twist

Ransomware peddlers have come up with yet another devious twist on the recent trend for data exfiltration. After interviewing several victims of the Clop ransomware, ZDNet discovered that its operators appear to be systematically targeting the workstations of executives. After all, the top manage...

Cyber tips for safe online dating: How to avoid privacy gaffs, exploits, and scams

Research and reporting on this article were conducted by Labs writers Chris Boyd and David Ruiz. Dating apps have been mainstream for a long time now, with nearly every possible dating scene covered—casual, long-term, gay, poly, of the Jewish faith, interested only in farmers—whatever you're...

Threat spotlight: Phobos ransomware lives up to its name

Ransomware has struck dead on organizations since it became a mainstream tool in cybercriminals' belts years ago. From massive WannaCry outbreaks in 2017 to industry-focused attacks by Ryuk in 2019, ransomware's got its hooks in global businesses and shows no signs of stopping. That includes a...

Billion-dollar search engine industry attracts vultures, shady advertisers, and cybercriminals

Search engines make money by showing users sponsored advertisements—a lot of money. This attracts attention, competition, and plenty who want a piece of the action without doing the actual work or considering the impact to those on the other end of the search bar. Because in the search business,...

Apple’s FaceTime privacy bug allowed possible spying

Social media caught fire yesterday as the news of a new Apple bug spread. It seemed that there was a flaw in FaceTime that allowed you to place a call to someone, but listen in on their microphone if they didn't pick up. Worse, as the news spread, it turned out that there was also a way to captur...

Web skimmers compete in Umbro Brasil hack

Umbro, the popular sportswear brand has had their Umbro Brasil website hacked and injected with not one but two web skimmers part of the Magecart group. Magecart has become a household name in recent months due to high profile attacks on various merchant websites. Criminals can seamlessly steal...

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...

TLS 1.3 is nearly here

TLS stands for "Transport Layer Security" and it's rather important. Why's that? Oh, I'm glad you asked. Here's me, yelling my password across the office to you: "PASSWORD!!!" You heard me loud and clear, right? But so did basically anyone else nearby. Now let's work in a little TLS love and...

4 sneaky scams from 2023

In 2023, the public primarily confronted two varieties of online scams: the technical and the topical. Technical scams abuse legitimate aspects of modern internet infrastructure to lead users to illegitimate or compromised sites. A team of hackers can, say, boost their own info-stealing websites...

Ransomware review: October 2023

This article is based on research by Marcelo Rivero, Malwarebytes' ransomware specialist, who monitors information published by ransomware gangs on their Dark Web sites. In this report, "known attacks" are those where the victim did not pay a ransom. This provides the best overall picture of...

Explained: Fuzzing for security

Fuzzing, or fuzz testing, is defined as an automated software testing method that uses a wide range of invalid and unexpected data as input to find flaws in the software undergoing the test. The flaws do not necessarily have to be security vulnerabilities. Fuzzing can also bring other undesirable...

Insecure password leads to Mangatoon data breach

The hugely popular Manga comics platform Mangatoon has fallen victim to a data breach. No fewer than 23 million user accounts could be at risk, thanks to a poorly secured database. Worse still, Mangatoon doesnt seem to be responding to messages from the breacher, or people notifying it that the...

Update Chrome now: Four high risk vulnerabilities found

Users of Chrome have been advised to apply updates as soon as possible related to seven security vulnerabilities. CISA has also warned that the vulnerabilities could be used to take control of affected systems. Although no detailed explanation of how these vulnerabilities work has been released,...

New Mac malware raises more questions about Apple’s security patching

Apples reputation on security has been taking a beating lately. As mentioned in some of our previous coverage, security researcher Joshua Long recently shone a light on problems with Apples security patching strategy. His findings showed a shocking number of cases where Apple patched a...

Patch now! Netgear fixes serious smart switch vulnerabilities

In a security advisory, NetGear has announced it has fixed three vulnerabilities in firmware updates for several network devices. Most of the affected products are smart switches, some of them with cloud management capabilities that allow for configuring and monitoring them over the web. One of t...

What does WiFi stand for?

We use WiFi to connect to the Internet, but what is it, and what does it stand for? How does it have such a catchy name, and why do we sometimes have a weak Internet connection with a strong WiFi signal and vice versa? Read on to answer these questions and more. What does WiFi mean? Many people...

The mystery of the Silver Sparrow Mac malware

Cyber security company Red Canary published findings last week about a new piece of Mac malware called Silver Sparrow. This malware is notable in being one of the first to include native code for Apples new M1 chips, but what is unknown about this malware is actually more interesting than what is...

A week in security (August 19 – 25)

Last week on Malwarebytes Labs, we reported on the presence of Magecart on a type of poker software; outlined how the Key Negotiation of Bluetooth KNOB attack works; followed the money on a Bitcoin sextortion campaign; looked back at DEF CON 27; and reported on continuing ransomware attacks on...

Malaysia Airlines Flight 17 investigation shows Russian disinformation campaigns have global reach

A little background: on July 17, 2014, Malaysia Airlines Flight 17 was shot from the sky on its way from Amsterdam to Kuala Lumpur above the Ukraine. The plane was hit by a surface-to-air missile, and as a result, all 298 people on board were killed. At that time, there was a revolt of pro-Russia...

Compromising vital infrastructure: water management

It’s probably unnecessary to explain why water management is considered part of our vital infrastructure, but it's a wider field than you might expect—and almost every one of its components can be integral to our survival. We all need clean water to drink. As much as I like my coffee, I can't mak...

Flaw in Twitter form may have been abused by nation states

Twitter announced in a blog post on Monday that they discovered and addressed a security flaw on one of their support forms. The discovery was made on November 15 — more than a month ago — and was promptly fixed the next day. From the Twitter blog on this issue: We have become aware of an issue...

Compromising vital infrastructure: the power grid

Where were you when the lights went out? That line became famous after the 1977 blackout in New York City. This power outage was caused by lightning and lasted for up to two days, depending on which part of New York you lived in. While in this case the power grid failure was a freak incident due ...

Secret Sister scam returns in time for Christmas

The festive season may be imminent, but it’s a Facebook Secret Sister not Santa you have to steer clear of. Secret Sister has been a mainstay of Yuletide scams since at least 2015, and has come back around once more. But what is it? Your office probably has a Secret Santa scheme in place. You dra...

A week in security (October 8 – 14)

Last week, we warned you away from some dubious Doctor Who streams, explained how Endpoint Detection and Response may not be enough, and explored what happens during a confusing supply chain story. We also showed you how to keep up with security, explained the risks of fake browser updates, and...

White hat, black hat, and the emergence of the gray hat: the true costs of cybercrime

This post was written by Michael Osterman of Osterman Research. Osterman Research recently completed a major survey on behalf of Malwarebytes to determine the actual cost of cybercrime to businesses. Many studies have focused on the cost of lost reputation, lost future business, and other...

A week in security (May 28 – June 3)

Last week on Labs, we talked about the significance of SEO poisoning in the world of search marketing, blackmail attempts against financial institutions in Canada, voice command flaws in smart assistants, survey and potential phishing scams on Instagram, and the latest changes in Office 365. We...

A week in security (April 30 – May 6)

Last week on Labs, we examined the Spartacus ransomware, reported about a new tactic used by the Necurs malspam campaign, informed you about the recommended Twitter password change, and discussed engaging students to start considering careers in cybersecurity. Other news NTML credentials can be...

A week in security (March 19 – March 25)

Last week, we looked at the growing problem of smartphone addiction, how link rot is continually slicing down portions of the web, and the theft of our intellectual property. We also explored the landscape of DDoS problems, and tackled a Stephen Hawking 419 scam. Other news What can only really b...

Investors concerned about smartphone addiction; Apple responds with new webpage

Hot on the heels of an open letter from investors urging Apple to do more to protect children from smartphone addiction, the tech giant has recently dedicated a page on their website to families. The "Families" page, which can be accessed at apple.com/families, contains tools parents can use to s...

GandCrab ransomware distributed by RIG and GrandSoft exploit kits (updated)

This post was authored by Vasilios Hioueras and Jérôme Segura Update 2018-02-02: GandCrab is delivered via Necurs malicious spam 1. Update 2018-02-01: GandCrab is now also spread via the EITest campaign 2 3. - - Late last week saw the appearance of a new ransomware called GandCrab. Surprisingly, ...

Why emerging APAC markets are prime targets for the malware of the future

In many ways, Asia has led the way in technological development. Robotics, video games, dizzyingly fast Internet speeds. But when it comes to cybersecurity, several APAC countries, especially those in emerging markets, are severely lacking. And while, according to the 2017 State of Malware Report...

WhatsApp cryptocurrency scam goes for the cash prize

This weekend a scammer tried his luck by reaching out to me on WhatsApp. It’s not that I don’t appreciate it, but trust me, it’s bad for your business. I received one message from a number hailing from the Togolese Republic. WhatsApp message from an unknow sender “Jay, your financial account has...