ClickFix Attacks Expand Using Fake CAPTCHAs, Microsoft Scripts, and Trusted Web Services

Cybersecurity researchers have disclosed details of a new campaign that combines ClickFix-style fake CAPTCHAs with a signed Microsoft Application Virtualization App-V script to distribute an information stealer called Amatera. "Instead of launching PowerShell directly, the attacker uses this scri...

CVE-2021-26890

CVE-2021-26890 is associated with Microsoft Application Virtualization (App-V). CNNVD’s entry describes a code-injection vulnerability affecting App-V across a range of Windows client/server SKUs (e.g., Windows 10 versions 1809–20H2, Windows Server 2019/2022 variants, and Server Core builds). NVD...

PT-2021-2353

Name of the Vulnerable Software and Affected Versions Windows App-V Overlay Filter affected versions not specified Description The issue is related to insecure privilege management in the Windows App-V Overlay Filter component. It allows attackers to elevate their privileges, potentially affectin...

August 16, 2019—KB4512494 (OS Build 16299.1365)

August 16, 2019—KB4512494 OS Build 16299.1365 Reminder: March 12 and April 9 were the last two Delta updates for Windows 10, version 1709. Security and quality updates will continue to be available via the express and full cumulative update packages. For more information on this change please vis...

March 19, 2019—KB4489894 (OS Build 17134.677)

March 19, 2019—KB4489894 OS Build 17134.677 Reminder: March 12th and April 9th will be the last two Delta updates for Windows 10, version 1803. Security and quality updates will continue to be available via the express and full cumulative update packages. For more information on this change pleas...

September 20, 2018—KB4457141 (OS Build 15063.1358)

September 20, 2018—KB4457141 OS Build 15063.1358 Improvements and fixes This update includes quality improvements. No new operating system features are being introduced in this update. Key changes include: Addresses an issue that causes Internet Explorer security and certificate dialogs to displa...

September 26, 2018—KB4457136 (OS Build 16299.699)

September 26, 2018—KB4457136 OS Build 16299.699 Note This update has been re-released because of a missing solution. If you installed build 16299.697, please install this newer version of OS build 16299.699. Improvements and fixes This update includes quality improvements. No new operating system...

June 21, 2018—KB4284822 (OS Build 16299.522)

June 21, 2018—KB4284822 OS Build 16299.522 Improvements and fixes This update includes quality improvements. No new operating system features are being introduced in this update. Key changes include: Addresses an application performance degradation issue in operating system functions. This...

January 17, 2018—KB4057144 (OS Build 15063.877)

January 17, 2018—KB4057144 OS Build 15063.877 Improvements and fixes This update includes quality improvements. No new operating system features are being introduced in this update. Key changes include: Addresses issue where some customers on a small subset of older AMD processors get into an...