Data Distribution Service: Mitigating Risks Part 3

In the final chapter of our blog series, we discuss mitigating strategies and recommendations to keep DDS protected from malicious actors...

North Korean State-Sponsored Cyber Actors Use Maui Ransomware to Target the Healthcare and Public Health Sector

Summary The Federal Bureau of Investigation FBI, Cybersecurity and Infrastructure Security Agency CISA, and the Department of the Treasury Treasury are releasing this joint Cybersecurity Advisory CSA to provide information on Maui ransomware, which has been used by North Korean state-sponsored...

Unpacking Cloud-Based Cryptocurrency Miners That Abuse GitHub Actions and Azure Virtual Machines

We investigate cloud-based cryptocurrency miners that leverage GitHub Actions and Azure virtual machines, including the cloud infrastructure and vulnerabilities that malicious actors exploit for easy monetary gain...

Researchers Share Techniques to Uncover Anonymized Ransomware Sites on Dark Web

Cybersecurity researchers have detailed the various measures ransomware actors have taken to obscure their true identity online as well as the hosting location of their web server infrastructure. "Most ransomware operators use hosting providers outside their country of origin such as Sweden,...

Vulnerabilities & Threats that Matter 27 June – 03 July 2022

Published Vulnerabilities Interesting Vulnerabilities Active Threat Groups Targeted Countries Targeted Industries ATT&CK TTPs 436 2 2 55 15 30 For a detailed threat digest, download the pdf file here Summary The last week of June 2022 witnessed the discovery of 436 vulnerabilities out of which 2...

ZuoRAT Can Take Over Widely Used SOHO Routers

A novel multistage remote access trojan RAT that’s been active since April 2020 is exploiting known vulnerabilities to target popular SOHO routers from Cisco Systems, Netgear, Asus and others. The malware, dubbed ZuoRAT, can access the local LAN, capture packets being transmitted on the device an...

The SessionManager IIS backdoor

Following on from our earlier Owowa discovery, we continued to hunt for more backdoors potentially set up as malicious modules within IIS, a popular web server edited by Microsoft. And we didnt come back empty-handed… In 2021, we noticed a trend among several threat actors for deploying a backdoo...

Vulnerabilities & Threats that Matter 20 June – 26 June 2022

Published Vulnerabilities Interesting Vulnerabilities Active Threat Groups Targeted Countries Targeted Industries ATT&CK TTPs 413 14 4 121 19 33 For a detailed threat digest, download the pdf file here Summary The last week of June 2022 witnessed the discovery of 413 vulnerabilities out of which ...

SP Project & Document Manager < 4.58 - Sensitive File Disclosure

The plugin uses an easily guessable path to store user files, bad actors could use that to access other users' sensitive files. PoC 1. Upload a file using the plugin. 2. On another browser, access the newly uploaded file via:...

Information Disclosure

parse-url is vulnerable to information disclosure. The vulnerability exists due to url-parse incorrectly parsing the href of the url, allowing for unauthorized actors to receive data meant for another host...

Cybersecurity agencies: You don’t have to delete PowerShell to secure it

Microsofts PowerShell is a useful, flexible tool that is as popular with criminals as it is with admins. Cybercrooks like it becasue PowerShell is powerful, available almost everywhere, and doesnt look out of place running on a company network. In most places it isnt practical to block PowerShell...

Log4Shell Still Being Exploited to Hack VMWare Servers to Exfiltrate Sensitive Data

The U.S. Cybersecurity and Infrastructure Security Agency CISA, along with the Coast Guard Cyber Command CGCYBER, on Thursday released a joint advisory warning of continued attempts on the part of threat actors to exploit the Log4Shell flaw in VMware Horizon servers to breach target networks...

Malicious Cyber Actors Continue to Exploit Log4Shell in VMware Horizon Systems

CISA and the United States Coast Guard Cyber Command CGCYBER have released a joint Cybersecurity Advisory CSA to warn network defenders that cyber threat actors, including state-sponsored advanced persistent threat APT actors, have continued to exploit CVE-2021-44228 Log4Shell in VMware Horizon®...

You’ve Been Warned: Overlook Security Basics at Your Peril

Hackers are increasingly capitalizing on our volatile world—there was an increase in coronavirus-related phishing attacks in the pandemic’s early days as well as threats associated with the uptick in telecommuting and remote learning. Russia’s invasion of Ukraine is the latest example, with...

Keeping PowerShell: Measures to Use and Embrace

Cybersecurity authorities from the United States, New Zealand, and the United Kingdom have released a joint Cybersecurity Information Sheet CIS on PowerShell. The CIS provides recommendations for proper configuration and monitoring of PowerShell, as opposed to removing or disabling it entirely du...

Improving AI-based defenses to disrupt human-operated ransomware

Microsoft’s deep understanding of human-operated ransomware attacks, which are powered by a thriving cybercrime gig economy, continuously informs the solutions we deliver to protect customers. Our expert monitoring of threat actors, investigations into real-world ransomware attacks, and the...

Can Business Cybersecurity Protection Outlay Offset Cybercrime Insurance?

What is cybercrime insurance? Business cybersecurity protection cybercrime insurance safeguards organizations from any financial losses relating to damage to or loss of information from, networks and IT systems. This may include reputation loss, the cost of business interruption, infringement of...

Vulnerabilities & Threats that Matter 13 June – 19 June 2022

Published Vulnerabilities Interesting Vulnerabilities Active Threat Groups Targeted Countries Targeted Industries ATT&CK TTPs 798 53 1 109 4 13 For a detailed threat digest, download the pdf file here Summary The first week of June 2022 witnessed the discovery of 798 vulnerabilities out of which ...

Defending Against Scheduled Task Attacks in Windows Environments

Scheduling tasks is one of the most popular attack techniques used by threat actors to establish persistence on a victim’s machine. The Qualys Research Team investigated different ways that attackers could use to conceal scheduled tasks. In this blog, we describe three new techniques to hide and...

Client-side Magecart attacks still around, but more covert

This blog post was authored by Jérôme Segura We have seen and heard less buzz about Magecart during the past several months. While some marketing playbooks continue to rehash the same breaches of yesteryear, we have been wondering if some changes took place in the threat landscape. One thing we...