Researchers Link New SS7 Encoding Attack to Surveillance Vendor Activity
Source: https://hackread.com/researchers-ss7-encoding-attack-surveillance-vendor/
Over 200 Malicious Open Source Packages Traced to Lazarus Campaign
Source: https://www.infosecurity-magazine.com/news/200-malicious-open-source-lazarus/
Gunra ransomware, first observed in April 2025, has expanded its capabilities with a new Linux variant. This cross-platform move broadens the group's attack surface and demonstrates their intent to grow beyond their initial scope. The Linux variant features advanced capabilities, including parallel encryption with up to 100 threads, partial file encryption, and customizable encryption parameters. Since its emergence, Gunra has targeted enterprises across various countries and industries, including manufacturing, healthcare, IT, and agriculture. The group's tactics include data exfiltration and encryption, with a reported 40 terabytes of data leaked from a Dubai hospital. The Linux variant's sophisticated features, such as multi-threaded encryption and flexible configuration options, make it a formidable threat in the evolving ransomware landscape.
New Choicejacking Attack Steals Data from Phones via Public Chargers
Source: https://hackread.com/choicejacking-attack-steals-data-phones-public-chargers/
China-linked group Fire Ant exploits VMware and F5 flaws since early 2025
Source: https://securityaffairs.com/180451/hacking/china-linked-group-fire-ant-exploits-vmware-and-f5-flaws-since-early-2025.html
This report analyzes a sophisticated Android malware targeting Indian banking apps. The malware uses a dropper and main payload structure, leveraging permissions like SMS access and silent installation to steal credentials, intercept messages, and perform unauthorized financial activities. It employs Firebase for command and control, phishing pages to mimic banking interfaces, and techniques like call forwarding abuse. The malware's modular architecture, evasion tactics, and persistence mechanisms pose significant threats to mobile banking security. Distribution methods include smishing, fake websites, and malvertising. The report provides detailed static and dynamic analysis, highlighting the malware's capabilities in data exfiltration, debit card harvesting, and remote command execution.
A phishing campaign exploiting the aftermath of a military conflict between Israel and Iran has been identified. The scam, using a fake domain 'lineageembraer.online', offers evacuation flights from Tel Aviv to New York on an Embraer Lineage 1000E business jet. The website presents unrealistic pricing and logistical details, aiming to steal personal and financial information from individuals seeking to flee the region. The operation uses fear and urgency tactics, offering seats at $2,166 USD, significantly below market rates for similar flights. The scheme involves a PDF with instructions hosted on a Shopify CDN, raising further suspicions. The campaign demonstrates how threat actors exploit crisis situations to target vulnerable individuals.
This intelligence analysis examines a widespread Request for Quote (RFQ) scam that exploits Net financing options to steal high-value electronics and goods. The scammers pose as procurement agents for legitimate companies, using stolen information and lookalike domains to appear credible. They request quotes for specific items and inquire about Net 15/30/45-day financing. Once credit is approved, they provide shipping addresses, often using freight forwarding services or residential addresses. The scammers utilize a network of shipping services, warehouses, and money mules to facilitate their operations. Key characteristics of the scam include urgent financing requests, suspicious delivery addresses, and the use of free email accounts. Mitigation efforts included domain takedowns and intercepting fraudulent shipments.
Just In: World Leaks Group Claims Dell Data Breach, Leaks 1.3 TB of Files
Source: https://hackread.com/world-leaks-dell-data-breach-leaks-1-3-tb-of-files/
Your Loyalty Card is a Liability: Lessons from the Co-op Attack
Source: https://substack.com/@alex133134/note/p-168474995?r=625rp3&utm_medium=ios&utm_source=notes-share-action
This report details an ongoing campaign by a threat actor operating during Chinese time zone hours, targeting Chinese-speaking individuals and entities globally. Since June 2023, the actor has created over 2,800 domains for malware delivery, primarily targeting Windows systems through fake application download sites and update prompts. The actor has made operational changes, including anti-automation measures, reduced site tracker services, increased server distribution, and more discreet registration details. The campaign uses fake login pages, marketing apps, and cryptocurrency-related apps to distribute malware. The actor's motivations appear to be financially driven, potentially including credential theft, financial theft, and access brokering. The report emphasizes the importance of user awareness, enhanced security measures, and multi-layered defense strategies to counter this persistent threat.
Between March and June 2025, three Chinese state-sponsored threat actors conducted targeted phishing campaigns against the Taiwanese semiconductor industry. The campaigns targeted organizations involved in semiconductor manufacturing, design, testing, supply chain, and financial analysis. This activity likely reflects China's strategic priority to achieve semiconductor self-sufficiency and decrease reliance on international supply chains. The threat actors used various tactics including job application lures, investment collaboration pitches, and credential phishing. They deployed custom malware like Voldemort backdoor and HealthKick, as well as tools like Cobalt Strike. The targeting extended beyond semiconductor companies to include financial analysts specializing in the Taiwanese semiconductor market, indicating comprehensive intelligence collection efforts across the sector.
A new variant of the Odyssey infostealer for macOS has been discovered, featuring code signing, notarization, and a persistent backdoor. The malware mimics a Google Meet updater and uses a SwiftUI-based 'Technician Panel' for social engineering. It steals sensitive data, including passwords, browser information, and cryptocurrency wallet contents. The stealer now includes a second-stage payload that establishes persistence and communicates with a command-and-control server. Notable features include dynamic command execution, network tunneling capabilities, and self-termination mechanisms. The malware also employs anti-analysis techniques to evade researchers. Multiple signed and notarized samples have been identified in the wild, indicating an evolution in the threat actor's tactics.
A sophisticated backdoor targeting Exchange servers of high-value organizations in Asia has been discovered. The malware, named GhostContainer, is a multi-functional backdoor that can be dynamically extended with additional modules. It leverages several open-source projects and employs various evasion techniques to avoid detection. The backdoor grants attackers full control over the Exchange server and can function as a proxy or tunnel. The malware is believed to be part of an APT campaign targeting government and high-tech companies in Asia. It includes components for C2 parsing, virtual page injection, and web proxy functionality. The attackers demonstrated expertise in exploiting Exchange systems and assembling sophisticated espionage tools.
Threat actors are increasingly using Scalable Vector Graphics (SVG) files to deliver JavaScript-based redirect attacks. These SVGs contain embedded, obfuscated JavaScript that initiates browser redirects to attacker-controlled infrastructure. The campaign uses email spoofing and impersonation to deliver the SVGs, bypassing traditional file-based detection. The embedded code uses XOR encryption and reconstructs the redirect command at runtime. The attack targets B2B Service Providers, including those handling corporate financial and employee data. Mitigation strategies include implementing DMARC policies, blocking SVG attachments, and enhancing email security measures. The campaign demonstrates a shift towards smuggling techniques that avoid triggering traditional security alerts.
This analysis explores the exploitation of DNS for command-and-control operations and data exfiltration. It details how cybercriminals leverage DNS tunneling to create covert communication channels, bypassing traditional security measures. The article examines various DNS tunneling families, including Cobalt Strike, DNSCat2, and Iodine, discussing their prevalence and unique characteristics. It also highlights Infoblox's Threat Insight machine learning algorithms, which can detect and block tunneling domains within minutes. The study provides insights into the detection rates of different tunneling families and discusses the challenges in differentiating between legitimate and malicious DNS traffic.
Domains identified by an automated threat monitoring infrastructure, which leverages advanced AI-driven analysis to detect anomalous and high-risk activity.
A blockchain developer in Russia lost $500,000 in crypto assets due to a malicious Solidity Language extension for Cursor AI IDE. The fake extension, downloaded 54,000 times, appeared higher in search results than the legitimate one due to ranking algorithms. It installed malware that allowed remote access and data theft. The attackers used ScreenConnect for remote control and deployed various scripts to steal wallet passphrases. A new malicious package was published shortly after the first was removed, with an inflated download count of 2 million. Similar attacks were found targeting blockchain developers through other extensions and npm packages. The incident highlights the ongoing threat of malicious open-source packages in the crypto industry.
