Magecart Targets Emergency Services-related Sites via Insecure S3 Buckets

Hacking groups are continuing to leverage misconfigured AWS S3 data storage buckets to insert malicious code into websites in an attempt to swipe credit card information and carry out malvertising campaigns. In a new report shared with The Hacker News, cybersecurity firm RiskIQ said it identified...

Malicious Google Web Extensions Harvest Cryptowallet Secrets

Large campaigns that are spreading malicious browser extensions are abusing Google Ads and well-known cryptocurrency brands to draw in victims. Extensions can be installed to add widgets or other functionality to web browsers; they offer the ability to do everything from setting a special search...

Lock and Code S1Ep4: coronavirus and responding to computer viruses with Akshay Bhargava

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 Akshay Bhargava, Chief Product Officer of Malwarebytes, about the similarities between coronavirus and computer viruses. We discuss computer virus...

Copycat Site Serves Up Raccoon Stealer

Someone is targeting web denizens with a malicious, copycat Malwarebytes website, which serves up the Raccoon information stealer malware to unsuspecting visitors. According to the security firm itself, the attackers set up the domain “malwarebytes-free.com” with a domain registrar in Russia in...

Copycat criminals abuse Malwarebytes brand in malvertising campaign

While exploit kit activity has been fairly quiet for some time now, we recently discovered a threat actor creating a copycat—fake—Malwarebytes website that was used as a gate to the Fallout EK, which distributes the Raccoon stealer. The few malvertising campaigns that remain are often found on...

WordPress Plugin Bug in Popup Builder Threatens 100K Websites

Two vulnerabilities – including a high-severity flaw – have been patched in a popular WordPress plugin called Popup Builder. The more severe flaw could enable an unauthenticated attacker to infect malicious JavaScript into a popup – potentially opening up more than 100,000 websites to takeover...

Domen toolkit gets back to work with new malvertising campaign

Last year, we documented a new social engineering toolkit we called "Domen" being used in the wild. Threat actors were using this kit to trick visitors into visiting compromised websites and installing malware under the guise of a browser update or missing font. Despite being a robust toolkit, we...

Rudy Giuliani’s Twitter mishaps invite typosquatters and scammers

Former cybersecurity czar Rudy Giuliani has been targeted by typosquatters on Twitter, thanks to copious misspellings and other keyboarding errors made in a number of his public tweets. In a tweet sent out on Sunday, Giuliani meant to send his 650,000-plus followers to his new website,...

AZORult spreads as a fake ProtonVPN installer

AZORult has its history. However, a few days ago, we discovered what appears to be one of its most unusual campaigns: abusing the ProtonVPN service and dropping malware via fake ProtonVPN installers for Windows. Screenshot of a fake ProtonVPN website The campaign started at the end of November 20...

Hundreds of Chrome Extensions Secretly Uploaded Private Data

A researcher discovered that hundreds of extensions in the Web Store were part of a long-running malvertising and ad-fraud scheme...

500 Malicious Chrome Extensions Impact Millions of Users

Researchers say that 500 Google Chrome browser extensions were discovered secretly uploading private browsing data to attacker-controlled servers, and redirecting victims to malware-laced websites. The browser extensions, all of which have now been removed, were downloaded millions of times from...

500 Chrome Extensions Caught Stealing Private Data of 1.7 Million Users

Google removed 500 malicious Chrome extensions from its Web Store after they found to inject malicious ads and siphon off user browsing data to servers under the control of attackers. These extensions were part of a malvertising and ad-fraud campaign that's been operating at least since January...

500 Chrome Extensions Caught Stealing Private Data of 1.7 Million Users

Google removed 500 malicious Chrome extensions from its Web Store after they found to inject malicious ads and siphon off user browsing data to servers under the control of attackers. These extensions were part of a malvertising and ad-fraud campaign that's been operating at least since January...

WOOF locker: Unmasking the browser locker behind a stealthy tech support scam operation

Update 01-27-2020: Shortly after this blog was published we noticed that a large part of the infrastructure behind this browlock was taken down. The malicious server responsible for redirections is no longer responding and we have not observed any new live browlock from this 2 year old campaign. ...

Dubious downloads: How to check if a website and its files are malicious

A significant amount of malware infections and potentially unwanted program PUP irritants are the result of downloads from unreliable sources. There are a multitude of websites that specialize in distributing malicious payloads by offering them up as something legitimate or by bundling the desire...

Spelevo exploit kit debuts new social engineering trick

2019 has been a busy year for exploit kits, despite the fact that they haven't been considered a potent threat vector for years, especially on the consumer side. This time, we discovered the Spelevo exploit kit with its virtual pants down, attempting to capitalize on the popularity of adult...

New Talos Takes podcast puts Talos' spin on the latest cyber news

By Jon Munshaw. Today, Cisco Talos' podcast network is growing with a new show. Talos Takes is a new podcast that provides Talos analysts' and researchers' opinions and expertise on the hottest topics in cyber security. The first three episodes of the show — covering holiday shopping scams,...

Threat Analysis Unit (TAU) Threat Intelligence Notification: njRAT

njRAT is a Remote Access Trojan RAT that will silently collect and steal sensitive information such as login credentials. It can also perform keylogger monitoring, remote desktop control, installing additional malicious software, and many other malicious activities on the victim’s computer. In...

‘Highly Competitive' Buer Loader Emerges in Underground Markets

A previously undocumented modular loader has emerged as a lucrative tool for cybercriminals in a variety of campaigns. Researchers say the “highly competitive” loader, dubbed Buer, is intended for use by actors seeking a turn-key, off-the-shelf solution. Researchers say they have spotted the load...

McDonalds-Themed Facebook Ads Serve Up Banking Trojans

The Mispadu banking trojan is using a McDonalds malvertising tactic to ultimately steal payment-card data and online banking information. Written in Delphi, Mispadu targets Brazil and Mexico, uses pop-up windows and contains backdoor functionality. According to researchers at ESET, Mispadu spread...