Cryptominers, ransomware among top malware in IR engagements in Q4

By David Liebenberg and Kendall McKay. This summer’s most popular malware families were commonly seen, unsophisticated attacks, with phishing being the top infection vector, according to Cisco Talos Incident Response CTIR data. In addition to threat actors repeatedly deploying common threats like...

Customer Guidance for the Dopplepaymer Ransomware

Microsoft has been investigating recent attacks by malicious actors using the Dopplepaymerransomware. There is misleading information circulating about Microsoft Teams, along with references to RDP BlueKeep, as ways in which this malware spreads. Our security research teams have investigated and...

Customer Guidance for the Dopplepaymer Ransomware

Microsoft has been investigating recent attacks by malicious actors using the Dopplepaymerransomware. There is misleading information circulating about Microsoft Teams, along with references to RDP BlueKeep, as ways in which this malware spreads. Our security research teams have investigated and...

400 Vet Locations Nipped by Ryuk Ransomware

National Veterinary Associates NVA has been hit with the Ryuk ransomware, in an attack that affects 400 clinics across the country. The California company said that it could take a week for its facilities to be fully back up and running normally. Patient records, payment systems and practice...

Threat Analysis Unit (TAU) Threat Intelligence Notification: Estemani Ransomware

Estemani Ransomware’s behavior is similar to other variants of ransomware. It will perform task kill on processes to ensure the encryption of files such as database program SQL server, perform the deletion of volume shadow copies, and disable Windows automatic startup repair to ensure all the dat...

Fake 'Windows Update' Installs Cyborg Ransomware

A malicious spam campaign that informs victims it contains a “critical Windows update” instead leads to the installation of Cyborg ransomware, researchers have found. Further, they were able to access its builder, which can be used to create malware variants. The email-based threat, discovered...

Ransomware Bites 400 Veterinary Hospitals

National Veterinary Associates NVA, a California company that owns more than 700 animal care facilities around the globe, is still working to recover from a ransomware attack late last month that affected more than half of those properties, separating many veterinary practices from their patient...

Louisiana State Government Hit by Ransomware Attack Forcing Server Shutdowns

Targeted ransomware attacks on banking and finance, government, healthcare, and critical infrastructure are on the rise, with the latest victim being the state government of Louisiana. The state government of Louisiana was hit by a large-scale coordinated ransomware attack yesterday, which forced...

Louisiana State Government Hit by Ransomware Attack Forcing Server Shutdowns

Targeted ransomware attacks on banking and finance, government, healthcare, and critical infrastructure are on the rise, with the latest victim being the state government of Louisiana. The state government of Louisiana was hit by a large-scale coordinated ransomware attack yesterday, which forced...

How the new Talos IR Cyber Range can prepare your employees for a cyber attack

By Gerard Johansen, Charles Iszard and Luke DuCharme. With the surge of ransomware attacks, information leaks and other cyber attacks in the headlines, most companies and organizations are aware that their employees need to be trained on how to stay safe online. But the real challenge lies in how...

This Week in Security News: APT33 Botnets Used for Extreme Narrow Targeting and Microsoft’s Patch Tuesday Arrives with A Patch for An IE Zero-Day

Welcome to our weekly roundup, where we share what you need to know about the cybersecurity news and events that happened over the past few days. This week, learn about the APT33 threat group that is using live C&C servers for extremely narrow targeting. Also, read about Trend Micro’s complete...

New Group of Hackers Targeting Businesses with Financially Motivated Cyber Attacks

Security researchers have tracked down activities of a new group of financially-motivated hackers that are targeting several businesses and organizations in Germany, Italy, and the United States in an attempt to infect them with backdoor, banking Trojan, or ransomware malware. Though the new...

New Group of Hackers Targeting Businesses with Financially Motivated Cyber Attacks

Security researchers have tracked down activities of a new group of financially-motivated hackers that are targeting several businesses and organizations in Germany, Italy, and the United States in an attempt to infect them with backdoor, banking Trojan, or ransomware malware. Though the new...

Threat Actor Impersonates USPS to Deliver Backdoor Malware

A new threat actor has been found impersonating the U.S. Postal Service USPS and other government agencies to deliver and install backdoor malware to various organizations in Germany, Italy and the United States, according to new research. The campaigns, which researchers from cybersecurity firm...

Innovative PureLocker Ransomware Emerges in Targeted Attacks

The PureLocker ransomware – so-called because it’s written in the PureBasic programming language – has been spotted being used in targeted attacks against both Windows and Linux-based production servers at enterprises. Researchers said it shows unusual characteristics that underscore the innovati...

Labs report finds cyberthreats against healthcare increasing while security circles the drain

The team at Malwarebytes Labs is at it again, this time with a special edition of our quarterly CTNT report—Cybercrime tactics and techniques: the 2019 state of healthcare. Over the last year, we gathered global data from our product telemetry, honeypots, threat intelligence, and research efforts...

Identifying and Arresting Ransomware Criminals

The Wall Street Journal has a story about how two people were identified as the perpetrators of a ransomware scheme. They were found because -- as generally happens -- they made mistakes covering their tracks. They were investigated because they had the bad luck of locking up Washington, DC's vid...

Ransomware Attack Downs Hosting Service SmarterASP.NET

SmarterASP.NET, a popular web hosting provider with more than 440,480 customers, has been hit with a ransomware attack that took down its customers’ websites that were hosted by the company. The company on Monday said it is in the process of recovering impacted data. SmarterASP.NET offers shared...

Threat Roundup for November 1 to November 8

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between Nov. 1 and Nov. 8. As with previous roundups, this post isn't meant to be an in-depth analysis. Instead, this post will summarize the threats we've observed by highlighting key behavioral characteristics,...

This Week in Security News: Amazon Echo Hacked at Pwn2Own Tokyo 2019 and Ransomware Attacks Hit Spanish Companies

Welcome to our weekly roundup, where we share what you need to know about the cybersecurity news and events that happened over the past few days. This week, learn about a ransomware that is attacking Spanish companies and how nearly 50 adware apps were found on Google Play. Also, read about how a...