msaRAT Malware Uses Chrome and Edge as C2 Communication Channels to Evade Detection

408/69 Friday, July 24, 2026 The Chaos ransomware group has been observed using a new backdoor called msaRAT, developed in Rust, which abuses the Chrome DevTools Protocol (CDP) to control Google Chrome or Microsoft Edge for relaying communications with command-and-control (C2) servers instead of connecting directly from the malware itself. This causes the traffic to […]

ThaiCERT

July 24, 2026

New Dolphin X Malware Uses AI to Rank Victims and Help Hackers Identify High-Value Targets Faster

406/69 Friday, July 24, 2026 Researchers from Varonis Threat Labs have identified a new Remote Access Trojan (RAT) called Dolphin X, which is being advertised for sale on cybercrime forums. The malware is notable because it incorporates artificial intelligence (AI) technology to analyze and rank victims, allowing attackers to filter and prioritize high-value targets or […]

ThaiCERT

July 24, 2026

Zimbra Releases Patch for Critical Vulnerabilities in Zimbra Collaboration Suite

405/69 Thursday, July 23, 2026 Zimbra has released a security update for Zimbra Collaboration Suite (ZCS) version 10.1.20 to address multiple Critical vulnerabilities, including a command injection flaw in the SNMP monitoring component. The vulnerability could allow unauthenticated attackers to execute commands on the operating system of the email server if SNMP notifications are enabled […]

ThaiCERT

July 23, 2026

Google Launches Gemini 3.5 Flash Cyber, an AI Model for Cybersecurity Designed to Find, Verify, and Fix Software Vulnerabilities

404/69 Thursday, July 23, 2026 Google has launched Gemini 3.5 Flash Cyber, a cybersecurity-focused AI model built on Gemini 3.5 Flash and optimized to quickly and effectively find, verify, and help fix software vulnerabilities. Google stated that the model is designed to support defenders in responding to threats at scale, especially in situations where AI […]

ThaiCERT

July 23, 2026

Apple Fixes Hide My Email Vulnerability to Prevent Real Email Addresses from Leaking in Mail Logs

403/69 Thursday, July 23, 2026 Apple has fixed a security vulnerability in its Hide My Email service on iCloud+, a feature designed to generate random email addresses to conceal users’ real email addresses and help prevent spam. The vulnerability could allow users’ real email addresses to be exposed through email delivery logs, undermining the privacy […]

ThaiCERT

July 23, 2026

Microsoft Releases Out-of-Band Update to Fix Issue Causing Some Dell PCs to Shut Down Unexpectedly

402/69 Wednesday, July 22, 2026 Microsoft has released an out-of-band Windows 11 update, KB5121767, to fix an issue affecting some devices with Intel Innovation Platform Framework (Intel IPF) drivers installed. The issue could cause reduced performance, abnormal power usage, or changes in system behavior after installing a previous Windows update. On some Dell computers, users […]

ThaiCERT

July 22, 2026

Estée Lauder Discloses Data Breach After Oracle E-Business Suite Exploited in Attack

401/69 Wednesday, July 22, 2026 Estée Lauder, a major cosmetics company, has disclosed a data breach after attackers exploited a vulnerability in Oracle E-Business Suite, which the company uses for Human Resources (HR) processes. Estée Lauder stated that on June 19, 2026, it determined that unauthorized access to its Oracle E-Business Suite system had occurred […]

ThaiCERT

July 22, 2026

Warning: HollowGraph Malware Uses Microsoft 365 Calendar as a Covert Channel for Command Execution and Data Theft

400/69 Wednesday, July 22, 2026 Cybersecurity firm Group-IB has reported the discovery of a new malware strain called HollowGraph, which uses the Calendar feature in compromised Microsoft 365 accounts as a communication channel with command-and-control (C2) servers to receive commands and exfiltrate stolen data. Researchers assess that it is part of the Cavern framework, which […]

ThaiCERT

July 22, 2026

Chrome Releases Patch for Multiple Critical Memory Safety Vulnerabilities

399/69 Tuesday, July 21, 2026 Google has released a security update for Chrome to fix seven memory safety vulnerabilities. These include three Critical-severity Use-after-free vulnerabilities in the CameraCapture, GPU, and Network components, as well as three High-severity vulnerabilities in the Cast, Ozone, and Aura components. Google has not stated that any of the vulnerabilities in […]

ThaiCERT

July 21, 2026
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