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Summary
The purpose of the Netskope Threat Labs News Roundup series is to provide enterprise security teams an actionable brief on the top cybersecurity news from around the world. The brief includes summaries and links to the top news items spanning cloud-enabled threats, malware, and ransomware.
Top Stories
Microsoft takes down Cobalt Strike servers
Microsoft, Fortra, and Health Information Sharing and Analysis Center (Health-ISAC) are taking technical and legal actions against cracked and legacy Cobalt Strike servers that were being used by attackers to distribute malware and ransomware. Details
Microsoft patches zero-day abused by ransomware
Microsoft’s April 2023 security update patches 97 CVEs, including a zero-day vulnerability that was being actively exploited in ransomware attacks. Details
Critical vulnerability in popular WordPress plugin
A now patched vulnerability was found in the WordPress plugin Elementor, which has over 5 million installations, potentially allowing code execution by unauthenticated attackers through arbitrary file upload. Details
Google Chrome fixes a zero-day vulnerability
Google released an emergency update for Google Chrome to address a zero-day vulnerability that was being exploited since the beginning of 2023, which is being tracked as CVE-2023-2033. Details
Google takes down CryptBot malware infrastructure
Google started to take down the infrastructure of a malware known as CryptBot, which is an info stealer that was being used to infect Google Chrome users to steal sensitive data, including usernames, passwords, and credit card information. Details
Cybersecurity Events in Ukraine
Russian attackers targeting NATO and EU
Russian state-sponsored attackers tracked as APT29 (a.k.a. Cozy Bear) were linked to widespread attacks targeting European Union countries and NATO through spear phishing emails to deploy malware. Details
Russia accuses NATO of cyberattacks since 2022
The Russian Federal Security Service (FSB) has accused NATO countries, including the United States, of launching over 5,000 cyberattacks against Russian’s critical infrastructure since the beginning of 2022. Details
Google warns of Russia-linked attacks targeting Ukraine
Google Threat Analysis Group (TAG) has warned about Russia-linked attackers targeting hundreds of users in Ukraine with phishing campaigns aiming to spread disinformation and gather intelligence. Details
Pro-Russia attackers targeting Canadian gas pipeline
Leaked documents could indicate that a Pro-Russia group known as Zarya has allegedly targeted a Canadian gas pipeline in conjunction with Russia’s Federal Security Service (FSB). Details
Ukrainian citizen arrested for selling data to Russians
A Ukrainian man was arrested by the Ukranian cyber police for selling personal and sensitive data of over 300 million citizens of Ukraine and the European Union to Russians via Telegram. Details
Russia-linked APT group targeting Ukraine with phishing
The Computer Emergency Response Team of Ukraine (CERT-UA) warned about a Russian-linked group tracked as APT28 targeting the Ukrainian government with spear-phishing attacks. Details
Cloud-enabled Threats
New MacOS malware abusing Telegram
A new MacOS malware named MacStealer was found abusing Telegram to steal sensitive information, including files, cryptocurrency wallets, and account passwords from common browsers like Chrome, Firefox, and Brave. Details
Cryptocurrency malware distributed via NuGet packages
Researchers found a supply-chain attack targeting .NET developers through a cryptocurrency stealer malware distributed via 13 malicious NuGet packages. Details
Flaw in Microsoft Azure could expose storage accounts
A “by-design” flaw was discovered in Microsoft Azure, which could allow attackers to access storage accounts and perform malicious activities, such as lateral movements, data exfiltration and code execution.