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Lighter Ransomware Locks Users Out of System
Overview This week, the Sonicwall Capture Labs threat research team analyzed a ransomware calling itself Lighter Ransomware. Upon execution, it opens up a window with a countdown timer instructing the victim to reach out immediately […]
US offers $10 million bounty for info on 'Blackcat' hackers who hit UnitedHealth
The U.S. State Department on Wednesday offered up to $10 million for information on the "Blackcat" ransomware gang who hit the UnitedHealth Group's tech unit and snarled insurance payments across America. "The ALPHV Blackcat ransomware-as-a-service group compromised computer networks of critical infrastructure sectors in the United States and worldwide," the department said in a statement announcing the reward offer.
As Threats in Space Mount, U.S. Lags in Protecting Key Services
The United States and China are locked in a new race, in space and on Earth, over a fundamental resource: time itself. And the United States is losing. Global positioning satellites serve as clocks in the sky, and their signals have become fundamental to the global economy — as essential for telecommunications, 911 services and financial exchanges as they are for drivers and lost pedestrians.
Seven Hackers Associated with Chinese Government Charged with Computer Intrusions Targeting Perceived Critics of China and U.S. Businesses and Politicians
Defendants Operated as Part of the APT31 Hacking Group in Support of China’s Ministry of State Security’s Transnational Repression, Economic Espionage and Foreign Intelligence Objectives
Flipping Pages: An analysis of a new Linux vulnerability in nf_tables and hardened exploitation techniques
A tale about exploiting KernelCTF Mitigation, Debian, and Ubuntu instances with a double-free in nf_tables in the Linux kernel, using novel techniques like Dirty Pagedirectory. All without even having to recompile the exploit for different kernel targets once.
Google: Spyware vendors behind 50% of zero-days exploited in 2023
Google's Threat Analysis Group (TAG) and Google subsidiary Mandiant said they've observed a significant increase in the number of zero-day vulnerabilities exploited in attacks in 2023, many of them linked to spyware vendors and their clients.
Recent ‘MFA Bombing’ Attacks Targeting Apple Users – Krebs on Security
Several Apple customers recently reported being targeted in elaborate phishing attacks that involve what appears to be a bug in Apple's password reset feature. In this scenario, a target's Apple devices are forced to display dozens of system-level prompts that…
U.S. Sanctions 3 Cryptocurrency Exchanges for Helping Russia Evade Sanctions
The U.S. Department of the Treasury's Office of Foreign Assets Control (OFAC) sanctioned three cryptocurrency exchanges for offering services used to evade economic restrictions imposed on Russia following its invasion of Ukraine in early 2022. This includes Bitpapa IC FZC LLC, Crypto Explorer DMCC (AWEX), and Obshchestvo S Ogranichennoy Otvetstvennostyu Tsentr Obrabotki Elektronnykh Platezhey (TOEP).
ZenHammer: Rowhammer Attacks on AMD Zen-based Platforms
Our work shows that it is possible to trigger Rowhammer bit flips on DDR4 devices on AMD Zen 2 and Zen 3 systems despite deployed TRR mitigations. This result proves that AMD systems are equally vulnerable to Rowhammer as Intel systems, which greatly increases the attack surface, considering today’s AMD market share of around 36%… Read
Release: VM Escape Exploit for Parallels Desktop Hypervisor (Pwn2Own 2021)
In April 2021 I participated in Pwn2Own Vancouvver competition as a single player, and successfully demonstrated a 0-day virtual machine escape exploit with code execution on Parallels hypervisor. Today I am finally releasing the exploit source code together with a technical walkthrough video talk that I gave on Zero Day Engineering livestream in November 2021.
China blocks use of Intel and AMD chips in government computers, FT reports
China has introduced guidelines to phase out U.S. microprocessors from Intel (INTC.O), opens new tab and AMD (AMD.O), opens new tab from government personal computers and servers, the Financial Times reported on Sunday. The procurement guidance also seeks to sideline Microsoft's (MSFT.O), opens new tab Windows operating system and foreign-made database software in favour of domestic options, the report said.
Air Europa says customer data may have been compromised in October breach
Spanish airline Air Europa (ICAG.L), opens new tab said on Friday personal data of its customers may have been compromised in a security incident that was detected in October last year. The company's investigation showed that name, ID card or passport details, date of birth, telephone number, email address and nationality details could have been leaked, Air Europa told its customers in an email that was seen by Reuters.
Change Healthcare ransomware attack disrupting industry nationwide
The reports keep coming in from across the country on how the Change Healthcare ransomware attack that first came to light on Feb. 21 has been impacting the healthcare sector. The case has been called the most severe cyberattack on the healthcare sector in history and has had a great impact since Change Healthcare, owned by UnitedHealth Group, processes 15 billion healthcare transactions annually, affecting 1 in 3 patient records.