Vigilance

Winsage
May 8, 2025
Several ransomware groups, including RansomEXX and Play, are exploiting a zero-day vulnerability in the Windows Common Log File System to elevate system privileges and deploy malware. This flaw was identified and patched during Microsoft's Patch Tuesday update in April 2024.
Winsage
May 6, 2025
Microsoft is introducing an AI agent for its Windows operating system to enhance user experience by allowing users to adjust settings using natural language. The rollout is expected within the next month, and the feature will be available through the Microsoft Insider program. This AI-driven assistant aims to simplify navigation through system settings, potentially replacing outdated submenus. Users will need to consider how the AI interprets commands and the level of control they retain over their PCs.
Tech Optimizer
May 6, 2025
A group of YouTubers, led by Tranium, conducted an experiment to download as many computer viruses as possible within an hour to raise cybersecurity awareness. Tranium collected approximately 530 viruses, while Crypto NWO detected 732 across 199,508 files. The experiment highlighted the dangers of downloading free software and the risks associated with 'free' antivirus programs, illustrating the ongoing threats in the digital landscape.
Winsage
May 4, 2025
Microsoft has warned about the increasing use of PDF attachments in cyberattacks, particularly during the U.S. tax season. Attackers have been using PDFs with embedded links that redirect users to counterfeit pages, such as a fake DocuSign site. TrustWave SpiderLabs has identified a new campaign involving a fake payment SWIFT copy that leads to a malicious PDF containing obfuscated JavaScript, which downloads a script that conceals the RemcosRAT payload using steganography. This technique involves hiding links within images, making them difficult to detect. The latest attacks begin with phishing emails containing malicious PDFs that direct victims to harmful webpages, facilitating the delivery of RemcosRAT, a trojan that allows remote control of compromised systems. Users are advised to be cautious of emails labeled “SWIFT Copy” and to delete suspicious emails immediately.
Winsage
April 25, 2025
In early April 2025, Microsoft addressed a security vulnerability (CVE-2025-21204) related to symbolic links in the Windows servicing stack, specifically affecting the c:inetpub directory used by Internet Information Services (IIS). The updates created the c:inetpub folder with appropriate permissions to mitigate risks. However, this fix introduced a new denial-of-service (DoS) vulnerability, allowing non-administrative users to create junction points on the c: drive, disrupting the Windows Update mechanism. A command such as "mklink /j c:inetpub c:windowssystem32notepad.exe" could be used to exploit this flaw, preventing systems from receiving future security patches. As of April 25, Microsoft had not released a patch or acknowledged the issue, leaving systems vulnerable and emphasizing the need for monitoring user permissions and manually removing suspicious symlinks.
Winsage
April 24, 2025
Microsoft's recent patch for CVE-2025-21204 inadvertently reintroduced the inetpub folder at c:inetpub as part of its mitigation strategy, raising concerns among system administrators. Security researcher Kevin Beaumont discovered that this folder created a new vulnerability when he used the mklink command with the /j parameter to redirect the folder to a system executable (notepad.exe). This allowed standard users to prevent Windows updates without administrative rights, as the command could be executed on default-configured systems. Beaumont has notified Microsoft of this vulnerability, but the company has not yet responded.
AppWizard
April 24, 2025
The TON Foundation will announce Maximilian Crown as its new CEO on Thursday. This appointment aims to stabilize Telegram, which has a user base of one billion, following the arrest of its founder Pavel Durov in Paris last year. Crown's leadership is seen as a significant step for Telegram, demonstrating its commitment to expanding its multi-functional app amid governmental pressures to access user data. Crown has experience as CFO and COO of MoonPay and has successfully secured operational approvals across various countries. Telegram has transformed into a “Super App,” integrating features such as gaming, shopping, and payment functionalities. The Telegram Open Network (TON) has 41 million active accounts and 121 million Toncoin holders. Toncoin's value is tied to Telegram's fortunes, experiencing fluctuations following Durov's arrest. Concerns have been raised regarding the impact of French authorities' actions on Telegram’s blockchain initiatives, especially related to digital privacy and government oversight. Durov was detained for 96 hours and criticized the scrutiny faced by Telegram, warning against legislative efforts that threaten individual freedoms.
Winsage
April 24, 2025
The inetpub folder, introduced in the April update of Windows 11 (version 24H2) as part of a fix for the CVE-2025-21204 vulnerability, has raised concerns among security researchers. It can be manipulated to block Windows updates without administrative rights by creating a symbolic link to notepad.exe, which can lead to a rollback of patches and leave the system vulnerable. Microsoft has not yet responded to this issue, and the possibility of a patch to address the new vulnerability is still open.
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