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'Adversaries are no longer just targeting products, they're targeting the developers who build them': CrowdStrike takes down major botnet targeting developers across the world
Tech Optimizer
May 27, 2026

‘Adversaries are no longer just targeting products, they’re targeting the developers who build them’: CrowdStrike takes down major botnet targeting developers across the world

CrowdStrike, Google, and the Shadowserver Foundation dismantled the Glassworm botnet on May 26, 2026, which had been targeting software developers since early 2025. The botnet spread through compromised Visual Studio Code extensions, tainted npm and Python packages, and hacked GitHub repositories, stealing developer credentials and deploying the GlasswormRAT remote access tool across Windows, macOS, and Linux. Glassworm utilized four command-and-control channels: the Solana blockchain, BitTorrent DHT, Google Calendar event titles, and traditional VPS. The operation successfully disrupted all four channels, preventing infected machines from receiving new instructions or payloads.
Microsoft Dismantles Fox Tempest: Ransomware Groups Paid Up to $9,500 to Fake Windows Software Signatures
Winsage
May 22, 2026

Microsoft Dismantles Fox Tempest: Ransomware Groups Paid Up to $9,500 to Fake Windows Software Signatures

Microsoft's Digital Crimes Unit has filed a lawsuit against Fox Tempest, a criminal enterprise selling fraudulently signed malware to ransomware groups, affecting hospitals, schools, and critical infrastructure in ten countries. The lawsuit was filed on May 19 in the U.S. District Court for the Southern District of New York. Fox Tempest created a portal at signspace[.]cloud, offering a user-friendly interface for uploading malicious files and generating over 580 fraudulent Microsoft accounts to bypass identity verification. The group provided pre-configured virtual machines for customers to upload malicious payloads in exchange for signed binaries. Fox Tempest's operations were linked to a ransomware attack chain involving a counterfeit Microsoft Teams installer that deployed the Rhysida ransomware. This ransomware strain has caused significant breaches, including an October 2023 attack on the British Library, which resulted in a data exfiltration of about 600GB and recovery costs of £6 to £7 million, and a September 2024 attack on Seattle-Tacoma International Airport with a ransom demand of .8 million. Microsoft's civil litigation approach allowed for a quicker legal process, leading to the seizure of the signspace[.]cloud domain and the suspension of around 1,000 Fox Tempest accounts. Despite these actions, Fox Tempest has begun shifting to alternative code-signing services, highlighting the evolving nature of cybercrime and the need for users to verify software through independent channels. The confirmed targets of Fox Tempest included organizations in the United States, France, India, China, Brazil, Germany, Japan, the United Kingdom, Italy, and Spain.
Microsoft Defender Zero-Day Vulnerabilities RedSun and UnDefend Actively Exploited on Windows 10, 11, and Server (April 2026 CVE Analysis)
Winsage
May 21, 2026

Microsoft Defender Zero-Day Vulnerabilities RedSun and UnDefend Actively Exploited on Windows 10, 11, and Server (April 2026 CVE Analysis)

In April 2026, two zero-day vulnerabilities, RedSun and UnDefend, were discovered in Microsoft Defender, affecting Windows 10, Windows 11, and Windows Server platforms. These vulnerabilities allow attackers to escalate privileges to SYSTEM and bypass Defender’s protections. RedSun exploits a flaw in Defender's remediation process, enabling low-privileged users to overwrite critical system files. UnDefend allows attackers to disrupt Defender’s updates, keeping it outdated and ineffective. Both vulnerabilities are actively being exploited, with attackers leveraging them to gain persistent access and deploy ransomware. The primary targets are organizations using Windows systems with Defender enabled, particularly in sectors like finance, healthcare, and government. Mitigation strategies include applying updates for related vulnerabilities, monitoring for suspicious activities, and implementing additional security measures.
Russia’s State-Mandated Max Messenger Reportedly Hides Powerful Tracking Tools
AppWizard
May 19, 2026

Russia’s State-Mandated Max Messenger Reportedly Hides Powerful Tracking Tools

The state-mandated messenger Max, developed by VK and supported by the Kremlin, is preinstalled on all new smartphones in Russia as of September 1, 2025, and is designed to function during internet blackouts. Following WhatsApp's ban in February 2026, officials have promoted Max as a "sovereign" alternative to Western messaging platforms. A reverse-engineering study revealed numerous surveillance features in Max, including VPN detection that restricts access until VPNs are disabled, real-time monitoring of contact lists, NFC control for manipulating the phone's NFC chip, silent message deletion, IP address tracking, a persistent hardware identifier, the creation of fake chats and reviews, and code injection capabilities. The study also found an on-device machine-learning system that detects keywords from audio input and the ability to record microphone audio during calls without user notification. Additionally, Max monitors access to foreign services and compiles sensitive user information into reports sent to analytics channels. The integration of Max is part of Moscow's broader initiative to consolidate internet traffic through state-controlled platforms, even reaching the International Space Station for communication purposes. Critics view the promotion of Max as part of a strategy to establish a "sovereign" communications system, raising concerns about digital privacy and freedom in Russia.
silver Android smartphone
AppWizard
May 11, 2026

New TrickMo Variant: Device Take Over malware targeting Banking, Fintech, Wallet & Auth apps

Modern Android banking malware is evolving with architectural enhancements for increased stealth, resilience, and operational flexibility. In early 2026, a new variant of the TrickMo Android banking trojan was identified, actively targeting banking and wallet users in France, Italy, and Austria. This variant has replaced its predecessor in ongoing campaigns and has transitioned its command-and-control traffic to The Open Network (TON). Key features of the new TrickMo variant include: - The primary command-and-control channel now operates over TON, utilizing .adnl endpoints through an embedded local TON proxy. - It employs a runtime-loaded APK (dex.module) with enhanced functionalities, including reconnaissance, SSH tunneling, and SOCKS5 proxying, allowing infected devices to act as network pivots. - TrickMo is classified as Device Take Over (DTO) malware, targeting banking, fintech, wallet, and authenticator applications on Android devices. - Operators gain control over infected devices through accessibility-service permissions, enabling capabilities such as credential phishing, keylogging, screen recording, remote control, and SMS interception. The new variant features a modular architecture with a host APK functioning as a launcher and persistence layer, while offensive capabilities are delivered through the dynamically loaded dex.module. Significant enhancements include network reconnaissance commands (curl, dnslookup, ping, telnet, traceroute) and socket-level tunneling via an embedded SSH client. Indicators of compromise include specific SHA-256 hashes and package names associated with TrickMo dropper applications and host applications. The malware retains unused permissions for NFC capabilities, suggesting a strategic approach to device filtering.
America is about to get tougher on VPNs
AppWizard
May 9, 2026

America is about to get tougher on VPNs

Numerous countries have implemented restrictions on online access, requiring users to verify their identities to view adult content. In Utah, Bill S.B. 73 has taken effect to prevent children from using VPNs to bypass age verification for adult content. The bill prohibits commercial entities from facilitating or encouraging the use of VPNs to circumvent age verification requirements. It lacks clarity on what constitutes "material harmful to minors," leading to varied interpretations. The bill also states that individuals are considered to be accessing a website from Utah if they are physically located in the state, regardless of VPN use, which poses challenges for website operators in determining user locations.
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