U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Sitecore CMS and XP, and GitHub Action flaws to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added [1,2] the following vulnerabilities to its Known Exploited Vulnerabilities (KEV)…
Tag: Security Affairs
Arkana Security group claims the hack of US telco provider WideOpenWest (WOW!)
Arkana Security, a new ransomware group, claims to have breached the telecommunications provider WideOpenWest (WOW!). The new ransomware group Arkana Security claims to have hacked US telecom provider WOW!, stealing customer data. WideOpenWest (WOW!) is a US-based telecommunications company that…
New ReaderUpdate malware variants target macOS users
New ReaderUpdate malware variants, now written in Crystal, Nim, Rust, and Go, targets macOS users, SentinelOne warns. SentinelOne researchers warn that multiple versions of the ReaderUpdate malware written in Crystal, Nim, Rust, and Go programming languages, are targeting macOS users.…
BlackLock Ransomware Targeted by Cybersecurity Firm
Resecurity found an LFI flaw in the leak site of BlackLock ransomware, exposing clearnet IPs and server details. Resecurity has identified a Local File Include (LFI) vulnerability in Data Leak Site (DLS) of BlackLock Ransomware. Cybersecurity experts were able to…
Google fixed the first actively exploited Chrome zero-day since the start of the year
Google fixed a flaw in the Chrome browser for Windows that was actively exploited in attacks targeting organizations in Russia. Google has released out-of-band fixes to address a high-severity security vulnerability, tracked as CVE-2025-2783, in Chrome browser for Windows. The flaw…
Authentication bypass CVE-2025-22230 impacts VMware Windows Tools
Broadcom addressed a high-severity authentication bypass vulnerability, tracked as CVE-2025-22230, in VMware Tools for Windows. Broadcom released security updates to address a high-severity authentication bypass vulnerability, tracked as CVE-2025-22230 (CVSS score 9.8), impacting VMware Tools for Windows. VMware Tools for…
Android malware campaigns use .NET MAUI to evade detection
Researchers warn of a new Android malware that uses .NET MAUI to mimic legit services and evade detection. McAfee researchers warn of Android malware campaigns using .NET MAUI to evade detection. These threats disguise themselves as legitimate services to steal…
Astral Foods, South Africa’s largest poultry producer, lost over $1M due to a cyberattack
Astral Foods, South Africa’s largest poultry producer, lost over $1M due to a cyberattack disrupting deliveries and impacting operations. Astral Foods is a South African integrated poultry producer and one of the country’s largest food companies. It specializes in poultry…
A cyberattack hits Ukraine’s national railway operator Ukrzaliznytsia
A cyberattack on Ukraine’s national railway operator Ukrzaliznytsia disrupted online ticket services, causing long lines at Kyiv’s station. The Record Media first reported the news of a cyber attack on Ukraine’s national railway operator Ukrzaliznytsia that disrupted online ticket services,…
Chinese APT Weaver Ant infiltrated a telco in Asia for over four years
China-linked APT Weaver Ant infiltrated the network of a telecommunications services provider for over four years. The China-linked threat actor Weaver Ant infiltrated the network of a telecom provider in Asia for over four years. During a forensic investigation, Sygnia…
Medusa ransomware uses malicious Windows driver ABYSSWORKER to disable security tools
Medusa ransomware uses a malicious Windows driver ABYSSWORKER to disable security tools, making detection and mitigation more difficult. Elastic Security Labs tracked a financially driven MEDUSA ransomware campaign using a HEARTCRYPT-packed loader and a revoked certificate-signed driver, ABYSSWORKER, to disable…
Attackers can bypass middleware auth checks by exploiting critical Next.js flaw
A critical flaw in the Next.js React framework could be exploited to bypass authorization checks under certain conditions. Maintainers of Next.js React framework addressed a critical vulnerability tracked as CVE-2025-29927 (CVSS score of 9.1) with the release of versions versions 12.3.5,…
FBI warns of malicious free online document converters spreading malware
The FBI warns of a significant increase in scams involving free online document converters to infect users with malware. The FBI warns that threat actors use malicious online document converters to steal users’ sensitive information and infect their systems with…
Cloak ransomware group hacked the Virginia Attorney General’s Office
The Cloak ransomware group claims responsibility for a cyberattack on the Virginia Attorney General’s Office that occurred in February. The ransomware group Cloak has claimed responsibility for a February cyberattack on the Virginia Attorney General Office. A cyberattack on the…
Security Affairs newsletter Round 516 by Pierluigi Paganini – INTERNATIONAL EDITION
A new round of the weekly SecurityAffairs newsletter arrived! Every week the best security articles from Security Affairs are free in your email box. Enjoy a new round of the weekly SecurityAffairs newsletter, including the international press. U.S. Treasury removed…
SECURITY AFFAIRS MALWARE NEWSLETTER ROUND 38
Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape Decrypting Encrypted files from Akira Ransomware (Linux/ESXI variant 2024) using a bunch of GPUs Jaguar Land Rover Breached by HELLCAT Ransomware…
UAT-5918 ATP group targets critical Taiwan
Cisco Talos found UAT-5918, active since 2023, using web shells and open-source tools for persistence, info theft, and credential harvesting. Cisco Talos uncovered UAT-5918, an info-stealing threat actor active since 2023, using web shells and open-source tools for persistence and…
U.S. Treasury removed sanctions against the crypto mixer service Tornado Cash
The U.S. Treasury is lifting sanctions on Tornado Cash, a crypto mixer accused of helping North Korea’s Lazarus Group launder illicit funds. The U.S. Treasury Department removed sanctions against the cryptocurrency mixer service Tornado Cash. In August 2022, the U.S.…
Zero-day broker Operation Zero offers up to $4 million for Telegram exploits
Russian zero-day broker Operation Zero is looking for exploits for the popular messaging app Telegram, offering up to $4 million for them. Operation Zero, a Russian zero-day broker, is offering up to $4 million for Telegram exploits, the news was…
RansomHub affiliate uses custom backdoor Betruger
Symantec researchers linked a custom backdoor, called Betruger, found in recent ransomware attacks to an affiliate of the RansomHub operation. Symantec’s Threat Hunter team has identified a custom backdoor, named Betruger, linked to a RansomHub affiliate. Designed for ransomware attacks,…