Security | Threat Detection | Cyberattacks | DevSecOps | Compliance

On February 14, 2023, Microsoft published its February 2023 Security Update and patched multiple high to critical vulnerabilities, with some of them being actively exploited in the wild. These vulnerabilities impact Windows systems and Exchange servers.

In December 2022, the FCC opened a call for comment requesting stakeholders provide input on whether E-Rate program funds can be used to support advanced or next-generation firewalls and services, as well as other network security services. For those unfamiliar with the program, E-Rate is a Federal Communications Commission (FCC) program that provides funding to schools and libraries for telecommunications and internet services.

A great deal of focus in the cybersecurity industry is placed on the dangers threat actors pose to small and medium-sized businesses. For good reason, too. These organizations often lack the budget and staffing required to provide 24×7 monitoring, detection, and response, leaving them exposed to attack. These same factors can find them incapable of mounting a robust incident response plan post-breach.

The names of over 1.5 million individuals were published on the dark web in January after ahacker gained access to the TSA’s “No Fly List.” That’s a lot of names (including aliases and birth dates), so why wasn’t the list secure, and how did it get leaked? The entire breach came down to one small business with one misconfigured server.

Arctic Wolf has observed a significant increase in the number of malicious files delivered and opened via OneNote email attachments. Unlike malicious Word and Excel files, infected OneNote files do not require the security prompt asking the end-user to allow macros, thus increasing the chances of unknowingly running the malicious executable.

Vulnerabilities cause the majority of cybercrime. There are always new vulnerabilities appearing as software gets updated and as cyber criminals work behind the scenes to find new backdoors to organizations’ systems. In the first half of 2022 alone, 81% of incidents happened through an external exposure — either a known vulnerability or a remote desktop protocol. The sheer volume of vulnerabilities grew again in 2022, with over 25,000 recorded, and over 800 have been actively exploited.

On February 3, 2023, the developers of GoAnywhere MFT (Managed File Transfer) sent an advisory to their customers warning them of a zero-day remote code execution vulnerability being actively exploited in the wild. Exploitation of this vulnerability could allow sensitive data to be leaked and potentially used for extortion.

The new year is upon us, but from a cybersecurity perspective, things look much the same as they did last year. January brought fresh attacks on a pair of familiar targets, high-stakes escalations in the ransomware game, and questionable crisis management from a high-profile victim. In other words, business as usual for cybercriminals! Let’s look at a few noteworthy cybercrimes from January 2023.

Early Friday morning, February 3, 2023, Arctic Wolf Labs began monitoring a new ransomware campaign targeting public-facing ESXi servers. The campaign has grown exponentially over the weekend, with approximately 3,000 victims worldwide as of early-Monday morning. Based on reporting from OVH, the threat actors behind this campaign are likely leveraging a nearly two year old heap overflow vulnerability (CVE-2021-21974) in VMware ESXi’s OpenSLP service.

Say what you want about bots, but you have to admire their versatility. Bots do everything from rank Google results and serve up cat photos on your Facebook feed, to sway elections and defraud retailers. Basically, they’re quite flexible. These days, bad bots are big business, with cybercriminals around the world using them to fraudulently access accounts, attack networks, and steal data.