A ransomware primer

Ransomware defenseCyber security is continually a relevant topic for Cisco customers and other stakeholders. Ransomware is quickly becoming one of the hottest topics in the technology space as these malware families target high-leverage companies and organizations. We at Cisco are often contacted...

Industrial Networks See Sharp Uptick in Hackable Security Holes

It’s on: Adversaries, CISOs and researchers are all simultaneously involved in a frantic race to find cybersecurity vulnerabilities hiding within industrial networks, according to the latest Biannual ICS Risk and Vulnerability report from Claroty. The report analyzed all publicly disclosed...

Ransomware Attacks Hit Major Utilities

Two state-owned utility companies in Brazil suffered separate ransomware attacks in the past week, forcing them to shut down some operations and services temporarily, In one case, sensitive data was stolen and dumped online, including network access logins and engineering plans. Centrais Eletrica...

Talos Takes Ep. #40: Takeaways from interviewing a ransomware operator

The latest episode of Talos Takes is available now. Download this episode and subscribe to Talos Takes using the buttons below, or visit the Talos Takes page. This week, we have two guests on a Talos Takes first! to discuss our recent research paper on the LockBit ransomware. Two of the authors,...

Threat Source newsletter (Feb. 4, 2021)

Newsletter compiled by Jon Munshaw. Good afternoon, Talos readers. We are excited to finally share this LockBit research paper with you all after months of work. Some of our researchers spoke to a ransomware operator, which provided us insight into a threat actor’s day-to-day goals and tactics. T...

NCIJTF Releases Ransomware Factsheet

The National Cyber Investigative Joint Task Force NCIJTF has released a joint-sealed ransomware factsheet to address current ransomware threats and provide information on prevention and mitigation techniques. The Ransomware Factsheet was developed by an interagency group of subject matter experts...

The State of Healthcare Cybersecurity: VMware Carbon Black Explores the Surge in Cyber Threats

On the frontline of the pandemic, perhaps no industry was impacted and forced to innovate and transform as quickly as healthcare in 2020. Whether it was the rapid development of COVID-19 testing technology or the explosion of telehealth, healthcare organizations accelerated digital transformation...

Interview with a LockBit ransomware operator

By Azim Khodjibaev, Dymtro Korzhevin and Kendall McKay. Ransomware is still highly prevalent in our current threat landscape — it's one of the top threats Cisco Talos Incident Response responds to. One such ransomware family we encounter is called LockBit, a ransomware-as-a-service RaaS platform...

Unpacking the CVEs in the FireEye Breach – Start Here First

In a blog post on Dec. 22, 2020, Qualys revealed it has identified 7.5 million instances of vulnerability to the stolen FireEye Red Team assessment tools across an anonymized set of its 15,700-member customer base. Of the 7.5 million instances of vulnerability, 99.84% were caused by only 8 CVEs,...

Fonix ransomware gives up life of crime, apologizes

Ransomware gangs deciding to pack their bags and leave their life of crime is not new, but it is a rare thing to see indeed. And the Fonix ransomware also known as FonixCrypter and Xinof, one of those ransomware-as-a-service RaaS offerings, is the latest to join the club. End of FonixCrypter...

What tracking an attacker email infrastructure tells us about persistent cybercriminal operations

From March to December 2020, we tracked segments of a dynamically generated email infrastructure that attackers used to send more than a million emails per month, distributing at least seven distinct malware families in dozens of campaigns using a variety of phishing lures and tactics. These...

What tracking an attacker email infrastructure tells us about persistent cybercriminal operations

From March to December 2020, we tracked segments of a dynamically generated email infrastructure that attackers used to send more than a million emails per month, distributing at least seven distinct malware families in dozens of campaigns using a variety of phishing lures and tactics. These...

LIVE Webinar: Major Lessons to be Learned from Top Cyber Attacks in 2020

We likely all agree that 2020 was a year we won't soon forget - for many reasons. One area particularly impacted last year was and continues to be cybersecurity. While Internet access allowed many businesses to continue functioning during the COVID-19 stay at home requirements, the unprecedented...

A week in security (January 25 – January 31)

January 28 was Data Privacy Day, but for Malwarebytes Labs, it was Data Privacy Week. As such, were packed with more privacy coverage than you can shake a stick at, starting with some practical steps on how to make your online life private and secure, and why privacy is core to a safer internet. ...

Update Your iPhone and iPad Now If You Haven't Recently

Plus: A ransomware arrest, a dating site data leak, and more of the week's top security news...

Packed.Win32.Katusha.o Insecure Permissions

Discovery / credits: Malvuln - malvuln.com c 2021 Original source: https://malvuln.com/advisory/e184abe44bec183a522d2c66bc3f90e0.txt Contact: [email protected] Media: twitter.com/malvuln Threat: Packed.Win32.Katusha.o Ransomeware Vulnerability: Insecure Permissions EoP Description: The malware...

Police Have Disrupted the Emotet Botnet

A coordinated effort has captured the command-and-control servers of the Emotet botnet: Emotet establishes a backdoor onto Windows computer systems via automated phishing emails that distribute Word documents compromised with malware. Subjects of emails and documents in Emotet campaigns are...

Authorities Seize Dark-Web Site Linked to the Netwalker Ransomware

U.S. and Bulgarian authorities this week took control of the dark web site used by the NetWalker ransomware cybercrime group to publish data stolen from its victims. "We are striking back against the growing threat of ransomware by not only bringing criminal charges against the responsible actors...

Authorities Seize Dark-Web Site Linked to the Netwalker Ransomware

U.S. and Bulgarian authorities this week took control of the dark web site used by the NetWalker ransomware cybercrime group to publish data stolen from its victims. "We are striking back against the growing threat of ransomware by not only bringing criminal charges against the responsible actors...

European Authorities Disrupt Emotet — World's Most Dangerous Malware

Law enforcement agencies from as many as eight countries dismantled the infrastructure of Emotet , a notorious email-based Windows malware behind several botnet-driven spam campaigns and ransomware attacks over the past decade. The coordinated takedown of the botnet on Tuesday — dubbed "Operation...