network

Winsage
August 11, 2025
During DEF CON 33, Yair and Shahak Morag from SafeBreach Labs introduced a new category of denial-of-service (DoS) attacks called the “Win-DoS Epidemic.” They identified four significant Windows DoS vulnerabilities, all categorized as “uncontrolled resource consumption,” including: - CVE-2025-26673 (CVSS 7.5): High-severity DoS vulnerability in Windows LDAP. - CVE-2025-32724 (CVSS 7.5): High-severity DoS vulnerability in Windows LSASS. - CVE-2025-49716 (CVSS 7.5): High-severity DoS vulnerability in Windows Netlogon. - CVE-2025-49722 (CVSS 5.7): Medium-severity DoS vulnerability in the Windows print spooler, requiring an authenticated attacker on an adjacent network. These vulnerabilities can incapacitate Windows endpoints and servers, including domain controllers (DCs), which are essential for managing authentication and resources in enterprise networks. The researchers also revealed a new DDoS attack method, termed Win-DDoS, which exploits a flaw in the Windows LDAP client referral process, allowing attackers to redirect DCs to a victim server and continuously repeat this redirection, creating a large-scale DDoS botnet using public DCs without leaving forensic traces.
Winsage
August 11, 2025
Researchers Yair and Shahak Morag from SafeBreach Labs introduced a new category of denial-of-service (DoS) attacks called the “Win-DoS Epidemic” at DEF CON 33. They identified four new vulnerabilities in Windows DoS and one zero-click distributed denial-of-service (DDoS) flaw, classified as “uncontrolled resource consumption.” The vulnerabilities include: - CVE-2025-26673 (CVSS 7.5): High-severity DoS vulnerability in Windows LDAP. - CVE-2025-32724 (CVSS 7.5): High-severity DoS vulnerability in Windows LSASS. - CVE-2025-49716 (CVSS 7.5): High-severity DoS vulnerability in Windows Netlogon. - CVE-2025-49722 (CVSS 5.7): Medium-severity DoS vulnerability in Windows Print Spooler, requiring an authenticated attacker on an adjacent network. These vulnerabilities can incapacitate Windows endpoints or servers, including Domain Controllers (DCs), potentially allowing for the creation of a DDoS botnet. The researchers also discovered a DDoS technique called Win-DDoS that exploits a flaw in the Windows LDAP client’s referral process, enabling attackers to redirect DCs to a victim server for continuous redirection. This method can leverage public DCs globally, creating a large, untraceable DDoS botnet without specialized infrastructure. Additionally, the researchers examined the Remote Procedure Call (RPC) protocol and found three new zero-click, unauthenticated DoS vulnerabilities that can crash any Windows system. They also identified another DoS flaw exploitable by any authenticated user on the network. The researchers released tools named “Win-DoS Epidemic” to exploit these vulnerabilities, highlighting the need for organizations to reassess their security measures regarding internal systems and services like DCs.
Tech Optimizer
August 9, 2025
A team from Kyoto University has developed a light source that emits single photons, enhanced in brightness by a small magnetic field, which can be used for secure quantum communications. This technology relies on the principles of quantum mechanics, making it difficult for eavesdroppers to replicate or measure the quantum states without detection. The researchers used a one-atom-thick semiconductor sheet, WSe₂, creating traps for excitons that emit photons when relaxed. Current limitations include the need for cryogenic temperatures for operation, but advancements in materials may allow for room-temperature single-photon emission. The technology has potential applications in secure communications for sensitive transactions and could evolve into compact modules for practical use. Recent studies have demonstrated successful quantum key distribution (QKD) using true single-photon sources, indicating progress in integrating quantum technology into real-world networking.
BetaBeacon
August 9, 2025
Itch.io has re-indexed some adult content that was delisted last month due to pressure from conservative groups and payment processors. The move only impacts free content, with paid content being reintroduced slowly. Valve also delisted games with adult content in response to pressure from payment processors. The removals have affected thousands of creators, including marginalized developers. Itch is seeking alternative payment processors to continue supporting a wide range of creators.
Tech Optimizer
August 8, 2025
A cyberattack on a Brazilian enterprise involved the use of legitimate, digitally signed drivers to disable antivirus solutions and deploy MedusaLocker ransomware. The attackers executed a Bring Your Own Vulnerable Driver (BYOVD) attack by exploiting the ThrottleStop.sys driver, which has a critical vulnerability (CVE-2025-7771) allowing unauthorized memory access. They compromised an SMTP server using valid RDP credentials, extracted user credentials with Mimikatz, and moved laterally across the network. The attackers uploaded and executed an AV killer program and a renamed version of the driver, terminating antivirus processes to facilitate ransomware deployment. The malware targeted major antivirus vendors and employed kernel-level commands to eliminate security processes. Recommendations for defense include multi-factor authentication, hardening RDP access, and implementing layered security measures.
AppWizard
August 8, 2025
Warner Bros. Discovery is experiencing a divergence in performance across its segments, with improvements in streaming operations and production studios, while traditional television networks face challenges. The company plans to split its operations into two entities: one focusing on production and streaming assets, and the other on cable networks. In a recent quarter, Warner Bros. Discovery added 3.4 million global streaming subscribers and reported a profit of .58 billion on total revenue of .81 billion, a turnaround from a loss of [openai_gpt model="gpt-4o-mini" prompt="Summarize the content and extract only the fact described in the text bellow. The summary shall NOT include a title, introduction and conclusion. Text: The narrative surrounding Warner Bros. Discovery is evolving into a compelling story of duality, a theme that executives are keen to communicate to Wall Street. The company, which encompasses the iconic Warner Bros. studio, the HBO Max streaming platform, and a variety of cable networks such as CNN and HGTV, is witnessing a notable divergence in performance across its different segments. While its streaming operations and production studios are showing signs of improvement, the landscape for traditional television networks appears increasingly challenging. This dynamic has undoubtedly influenced the company’s recent strategic decision to bifurcate its operations. One entity will focus on the production and streaming assets, while the other, burdened with debt, will concentrate on navigating the future of its cable networks. Related Stories In a recent letter to shareholders, Warner Bros. Discovery highlighted the success of various projects, including the films “A Minecraft Movie” and “Sinners,” as well as popular television properties like “The Last of Us” and its coverage of significant sports events such as the French Open. Despite these successes, the company reported only a modest revenue increase for the quarter, transitioning from a loss in the previous year to a profit this time around. During the quarter, Warner Bros. Discovery added 3.4 million global streaming subscribers, a growth attributed in part to the international expansion of its streaming service. However, the company acknowledges that it still faces considerable challenges in the current operating environment. “Our Studios are performing well and are making progress,” the company stated in its shareholder letter, while also noting that “secular headwinds persist in the network television environment.” The reported profit for the quarter reached .58 billion, with total revenue amounting to .81 billion. This marks a significant turnaround from a loss of .99 billion in the same quarter last year. Earnings per share were reported at 63 cents, a stark contrast to the loss of .07 per share recorded in the previous year. These results reflect various financial factors, including .7 billion in pre-tax acquisition-related amortization of intangibles, content fair value step-up, and restructuring expenses, alongside a billion pretax gain from debt extinguishment. Distribution revenues remained stable at .89 billion, consistent with the previous year, although advertising revenue experienced a 9% decline overall. More to come…" max_tokens="3500" temperature="0.3" top_p="1.0" best_of="1" presence_penalty="0.1" frequency_penalty="frequency_penalty"].99 billion in the same quarter last year. Earnings per share were 63 cents, compared to a loss of [openai_gpt model="gpt-4o-mini" prompt="Summarize the content and extract only the fact described in the text bellow. The summary shall NOT include a title, introduction and conclusion. Text: The narrative surrounding Warner Bros. Discovery is evolving into a compelling story of duality, a theme that executives are keen to communicate to Wall Street. The company, which encompasses the iconic Warner Bros. studio, the HBO Max streaming platform, and a variety of cable networks such as CNN and HGTV, is witnessing a notable divergence in performance across its different segments. While its streaming operations and production studios are showing signs of improvement, the landscape for traditional television networks appears increasingly challenging. This dynamic has undoubtedly influenced the company’s recent strategic decision to bifurcate its operations. One entity will focus on the production and streaming assets, while the other, burdened with debt, will concentrate on navigating the future of its cable networks. Related Stories In a recent letter to shareholders, Warner Bros. Discovery highlighted the success of various projects, including the films “A Minecraft Movie” and “Sinners,” as well as popular television properties like “The Last of Us” and its coverage of significant sports events such as the French Open. Despite these successes, the company reported only a modest revenue increase for the quarter, transitioning from a loss in the previous year to a profit this time around. During the quarter, Warner Bros. Discovery added 3.4 million global streaming subscribers, a growth attributed in part to the international expansion of its streaming service. However, the company acknowledges that it still faces considerable challenges in the current operating environment. “Our Studios are performing well and are making progress,” the company stated in its shareholder letter, while also noting that “secular headwinds persist in the network television environment.” The reported profit for the quarter reached .58 billion, with total revenue amounting to .81 billion. This marks a significant turnaround from a loss of .99 billion in the same quarter last year. Earnings per share were reported at 63 cents, a stark contrast to the loss of .07 per share recorded in the previous year. These results reflect various financial factors, including .7 billion in pre-tax acquisition-related amortization of intangibles, content fair value step-up, and restructuring expenses, alongside a billion pretax gain from debt extinguishment. Distribution revenues remained stable at .89 billion, consistent with the previous year, although advertising revenue experienced a 9% decline overall. More to come…" max_tokens="3500" temperature="0.3" top_p="1.0" best_of="1" presence_penalty="0.1" frequency_penalty="frequency_penalty"].07 per share the previous year. Distribution revenues remained stable at .89 billion, but advertising revenue declined by 9%.
AppWizard
August 8, 2025
Warner Bros Discovery reported a second-quarter profit driven by the international rollout of HBO Max and successful film releases, including “A Minecraft Movie,” which grossed nearly billion globally. The company added 3.4 million subscribers to its streaming division, surpassing expectations. Total revenue for the quarter reached .81 billion, exceeding analyst predictions. However, shares fell approximately 7 percent due to a 9 percent revenue drop in the cable TV unit and a 12 percent decline in advertising revenue for its linear network division. The streaming unit achieved an adjusted core profit of 3 million, a turnaround from a loss of million the previous year. Warner Bros Discovery anticipates a further decline in advertising revenue in the current quarter.
Tech Optimizer
August 8, 2025
Polymorphic malware is a type of malicious software that can change its code structure while maintaining its core functionality, making it difficult for traditional signature-based antivirus solutions to detect. It uses a mutation engine to create new variants by altering its code through techniques like code obfuscation, encryption, and junk code insertion. There are several categories of polymorphic malware, including polymorphic viruses, trojans, rootkits, and ransomware, each with unique characteristics. Detection of polymorphic malware is challenging due to its ability to evade conventional methods, prompting the use of behavioral analysis and machine learning for identification. To protect against such threats, a multi-layered security approach is recommended, including regular software updates, network segmentation, and employee training. Real-world examples like the Storm Worm and Conficker worm illustrate the significant impact of polymorphic malware, which has caused substantial financial losses. As cybersecurity measures advance, polymorphic malware continues to evolve, incorporating artificial intelligence and machine learning, leading to new challenges for security professionals. Cloud-based security solutions are emerging as effective tools to combat these threats.
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