Morning Overview on MSN

New Windows malware mimics signed apps to slip onto PCs

A strain of Windows malware is exploiting a deceptively simple trick to bypass antivirus software: it disguises itself as a legitimately signed application, making it nearly invisible to standard ...

Hackers Pose as IT Staff in Microsoft Teams to Install Malware

Hackers are impersonating IT staff in Microsoft Teams to trick employees into installing malware, giving attackers stealthy ...

Microsoft Teams phishing targets employees with A0Backdoor malware

Hackers contacted employees at financial and healthcare organizations over Microsoft Teams to trick them into granting remote ...
Windows Report

Attackers Impersonate IT Support on Microsoft Teams to Deploy A0Backdoor Malware

Hackers abused Microsoft Teams and Quick Assist to deploy A0Backdoor malware at financial and healthcare organizations, researchers warn.
Homeland Security Today

CISA Releases Malware Analysis Report Associated with Microsoft SharePoint Vulnerabilities

CISA has published a Malware Analysis Report (MAR) with analysis and associated detection signatures on files related to Microsoft SharePoint vulnerabilities, according to a press release yesterday.
Bleeping Computer

New PDFSider Windows malware deployed on Fortune 100 firm's network

Ransomware attackers targeting a Fortune 100 company in the finance sector used a new malware strain, dubbed PDFSider, to deliver malicious payloads on Windows systems. The attackers employed social ...
Hosted on MSN

This new Windows malware hides in plain sight to install Remcos RAT

It does not crash systems or raise alarms. It blends into everyday Windows activity and works quietly in the background. By the time it is noticed, control may already be lost. Security teams are ...

windows malware

Attackers are using fake Claude Code install pages and malicious search ads to spread infostealer malware targeting Windows and macOS systems.
The National Law Review

CISA Releases Malware Analysis Report for Microsoft SharePoint Vulnerabilities

We collaborate with the world's leading lawyers to deliver news tailored for you. Sign Up for any (or all) of our 25+ Newsletters. Some states have laws and ethical rules regarding solicitation and ...
JD Supra

CISA Releases Malware Analysis Report for Microsoft SharePoint Vulnerabilities

Threat actors continue to exploit ToolShell to gain unauthorized access to on-premises SharePoint servers. On August 6, 2025, the Cybersecurity and Infrastructure Security Agency (CISA) released a ...