Latest cybersecurity reporting from selected sources.

The North Korean state-sponsored hacking group known as ScarCruft (aka APT37) has been observed using spear-phishing messages impersonating Microsoft Account security notifications to deliver a new malware called NarwhalRAT

A China-nexus cyber espionage group has been observed deploying a BSD variant of a known backdoor called BRICKSTORM, as well as two other malware families codenamed PLENET (aka GRIMBOLT) and AGENTPSD to target Linux systems

The North Korea-aligned state-sponsored hacking group known as ScarCruft has compromised a video game platform in a supply chain espionage attack, trojanizing its components with a backdoor called BirdCallto likely target ethnic Koreans residing in China

The Russia-linked state-sponsored threat actor known as APT28 (aka UAC-0001) has been attributed to attacks exploiting a newly disclosed security flaw in Microsoft Office as part of a campaign codenamed Operation Neusploit

The notorious Russian state-sponsored hacking unit, also known as Fancy Bear, is abusing Microsoft Outlook for covert data exfiltration.

An APT hacking group known as 'Stealth Falcon' exploited a Windows WebDav RCE vulnerability in zero-day attacks since March 2025 against defense and government organizations in Turkey, Qatar, Egypt, and Yemen. [...]

Microsoft Researchers Link Turkish Spy Group to Output Messenger Zero-Day HackA Turkish-linked cyberespionage group known as Marbled Dust exploited a zero-day in the Output Messenger Server Manager application to spy on Kurdish military operations in Iraq. Microsoft reported the hack and called for immediate mitigation to block credential theft and malware delivery.

Mustang Panda Uses MAVInject to Evade Antivirus DetectionA Chinese state-sponsored hacking group is abusing a legitimate Microsoft tool to evade security and install backdoors on government systems in the Asia-Pacific region. The threat actor uses MAVInject.exe to inject malware into waitfor.exe.

The North Korea-linked nation-state hacking group known as Kimsuky has been observed conducting spear-phishing attacks to deliver an information stealer malware named forceCopy, according to new findings from the AhnLab Security Intelligence Center (ASEC)

A new Linux backdoor called 'WolfsBane' has been discovered, believed to be a port of Windows malware used by the Chinese 'Gelsemium' hacking group. [...]

Also: Prison Sentences for BEC Scammers and a West African Cybercrime CrackdownThis week, AI nudify sites spread malware, BEC scammers head to prison, London man charged with hacking, and a Spanish insurance company with a breach. Also, a North Korean hacking group and a West African crackdown on online scammers. And, a Schrödinger Windows vulnerability: Is it real?

​CISA has ordered U.S. federal agencies to secure their systems against a recently patched Windows MSHTML spoofing zero-day bug exploited by the Void Banshee APT hacking group. [...]

Lazarus Espionage Group's Sophisticated Malware Evades Antivirus MonitoringNorth Korea's Lazarus hacking team, which focuses on cryptocurrency theft and espionage, has once again been exploiting a zero-day vulnerability in Microsoft Windows to install antivirus-suppressing malware dubbed Fudmodule to aid its intrusions.

Espionage Group Using Linux-based Espionage Tools to Nab Defense SecretsA politically motivated hacking group aligned with Pakistani interests is matching the Indian military's shift away from the Windows operating system with a heavy focus on malware encoded for Linux. BlackBerry observed the cyberespionage group targeting government agencies and the defense industry.

ALSO: Viasat hack wiper malware is back, users are the number one cause of data loss, and critical vulns Infosec in brief If your Windows domain controllers have been crashing since a security update was installed earlier this month, there's no longer any need to speculate why: Microsoft has admitted it introduced a memory leak in its March patches and fixed the issue.…

The WINELOADER backdoor used in recent cyber attacks targeting diplomatic entities with wine-tasting phishing lures has been attributed as the handiwork of a hacking group with links to Russia's Foreign Intelligence Service (SVR), which was responsible for breaching SolarWinds and Microsoft

A financially motivated hacking group named Magnet Goblin uses various 1-day vulnerabilities to breach public-facing servers and deploy custom malware on Windows and Linux systems. [...]

Microsoft says a North Korean hacking group has breached Taiwanese multimedia software company CyberLink and trojanized one of its installers to push malware in a supply chain attack targeting potential victims worldwide. [...]

Microsoft says that the North Korean Lazarus and Andariel hacking groups are exploiting the CVE-2023-42793 flaw in TeamCity servers to deploy backdoor malware, likely to conduct software supply chain attacks. [...]

The North Korean state-sponsored Lazarus hacking group is breaching Windows Internet Information Service (IIS) web servers to hijack them for malware distribution. [...]