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IT Security Newsletter - 4/24/2024



Hackers infect users of antivirus service that delivered updates over HTTP

Hackers abused an antivirus service for five years in order to infect end users with malware. The attack worked because the service delivered updates over HTTP, a protocol vulnerable to attacks that corrupt or tamper with data as it travels over the Internet. The unknown hackers, who may have ties to the North Korean government, pulled off this feat by performing a man-in-the-middle (MitM) attack that replaced the genuine update with a file that installed an advanced backdoor instead. READ MORE...

Software Updates

Microsoft pulls fix for Outlook bug behind ICS security alerts

Microsoft has rolled back a fix for a known Outlook issue that was causing incorrect security alerts when opening ICS calendar files after installing the December Outlook Desktop security updates. Affected Microsoft 365 users are seeing unexpected warnings that "Microsoft Office has identified a potential security concern" and that "This location may be unsafe" when double-clicking ICS files saved on their devices. READ MORE...


City street lights "misbehave" after ransomware attack

The UK's Leicester City Council was thrown into chaos last month when a crippling cyber attack forced it to shut down its IT systems and phone lines. The INC Ransom group perpetrated the ransomware attack, which reportedly impacted care home workers and the homeless but also saw at least 1.3 terabytes of stolen data published on the dark web. But the ransomware attack on Leicester City Council's infrastructure doesn't stop there. READ MORE...

Russian Cyberspies Deliver 'GooseEgg' Malware to Government Organizations

Russia-linked cyberespionage group APT28 has been observed exploiting Windows Print Spooler vulnerabilities to deploy a custom post-exploitation tool against numerous organizations in the US, Ukraine, and Western Europe, Microsoft reports. Dubbed GooseEgg, the unique tool is a simple launcher application that can spawn other programs with elevated privileges, providing the attackers with capabilities such as remote code execution, backdoor deployment, and lateral movement. READ MORE...

Information Security

The spam came from inside the house: How a smart TV can choke a Windows PC

The modern "smart" TV asks a lot of us. In exchange for connecting you to a few streaming services you use, a TV will collect data, show ads, and serve as another vector for bad actors. In a few reported cases, though, a modern connected TV has been blamed for attacks not on privacy, eyeballs, or passwords but on an entirely different computer. The TV in question is a Hisense TV, and the computer is a Windows PC, specifically one belonging to a musician and audio designer in Montréal, Quebec. READ MORE...


Siemens Working on Fix for Device Affected by Palo Alto Firewall Bug

Siemens is urging organizations using its Ruggedcom APE1808 devices configured with Palo Alto Networks (PAN) Virtual NGFW to implement workarounds for a maximum severity zero-day bug that PAN recently disclosed in its next-gen firewall product. The command injection vulnerability, identified as CVE-2024-3400, affects multiple versions of PAN-OS firewalls when certain features are enabled on them. An attacker has been exploiting the flaw to deploy a novel Python backdoor on affected firewalls. READ MORE...


New Password Cracking Analysis Targets Bcrypt

Cybersecurity firm Hive Systems has released the results of its latest annual analysis on cracking passwords through brute-force attacks. Hive has been conducting this study for several years and until now it has targeted passwords hashed with the widely used MD5 algorithm. However, MD5 hashes can in many cases be easily cracked and organizations have increasingly turned to more secure algorithms, particularly Bcrypt. READ MORE...

On This Date

  • ...in 1800, the Library of Congress is established, starting with a mere 740 books and three maps.
  • ...in 1945, President Harry Truman is fully briefed on the details of the Manhattan Project.
  • ...in 1990, the Hubble Space Telescope is launched from Space Shuttle Discovery.
  • ...in 1995, the last 4th generation Chevrolet Corvette ZR-1 was produced.