FIN7 Hacker Group Leverages Malicious Google Ads to Deliver NetSupport RAT

The financially motivated threat actor known as FIN7 has been observed leveraging malicious Google ads spoofing legitimate brands as a means to deliver MSIX installers that culminate in the deployment of NetSupport RAT. "The threat actors used malicious websites to impersonate well-known brands,...

Stories from the SOC Part 2: MSIX Installer Utilizes Telegram Bot to Execute IDAT Loader

Rapid7’s Managed Detection and Response MDR team continuously monitors our customers' environments, identifying emerging threats and developing new detections. In August 2023, Rapid7 identified a new malware loader named the IDAT Loader. Malware loaders are a type of malicious software designed t...

SUSE CVE-2021-47141

In the Linux kernel, the following vulnerability has been resolved: gve: Add NULL pointer checks when freeing irqs. When freeing notification blocks, we index priv-msixvectors. If we failed to allocate priv-msixvectors see abortwithmsixvectors this could lead to a NULL pointer dereference if the...

UBUNTU-CVE-2021-47141

In the Linux kernel, the following vulnerability has been resolved: gve: Add NULL pointer checks when freeing irqs. When freeing notification blocks, we index priv-msixvectors. If we failed to allocate priv-msixvectors see abortwithmsixvectors this could lead to a NULL pointer dereference if the...

FakeBat delivered via several active malvertising campaigns

February was a particularly busy month for search-based malvertising with the number of incidents we documented almost doubling. We saw similar payloads being dropped but also a few new ones that were particularly good at evading detection. One malware family we have been tracking on this blog is...

CVE-2021-46918

A flaw was found in the Linux Kernel. The current code leaves the MSIX enabled and the pasid entries still programmed at device shutdown. Add disabling/clearing of MSIX permission entries on device shutdown to mirror the enabling of the MSIX entries on probe...

CVE-2021-46918

In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: clear MSIX permission entry on shutdown Add disabling/clearing of MSIX permission entries on device shutdown to mirror the enabling of the MSIX entries on probe. Current code left the MSIX enabled and the pasid...

CVE-2021-46918

In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: clear MSIX permission entry on shutdown Add disabling/clearing of MSIX permission entries on device shutdown to mirror the enabling of the MSIX entries on probe. Current code left the MSIX enabled and the pasid...

CVE-2021-46918

CVE-2021-46918 is a Linux kernel vulnerability in the IDXDMA/DMAR DMA engine where MSIX permission entries were not cleared on device shutdown. The issue arose because MSIX entries were left enabled and pasid entries remained programmed when the device shut down, potentially enabling persistence ...

CVE-2021-46918 dmaengine: idxd: clear MSIX permission entry on shutdown

In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: clear MSIX permission entry on shutdown Add disabling/clearing of MSIX permission entries on device shutdown to mirror the enabling of the MSIX entries on probe. Current code left the MSIX enabled and the pasid...

CVE-2021-46918 dmaengine: idxd: clear MSIX permission entry on shutdown

In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: clear MSIX permission entry on shutdown Add disabling/clearing of MSIX permission entries on device shutdown to mirror the enabling of the MSIX entries on probe. Current code left the MSIX enabled and the pasid...

PT-2024-2974 · Linux +2 · Linux Kernel +2

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The issue is related to the idxd component of the Linux kernel and involves the recording of pasid when a device is shut down. Exploitation of this issue may allow an attacker to impac...

Microsoft Disables MSIX App Installer Protocol Widely Used in Malware Attacks

Microsoft on Thursday said it's once again disabling the ms-appinstaller protocol handler by default following its abuse by multiple threat actors to distribute malware. "The observed threat actor activity abuses the current implementation of the ms-appinstaller protocol handler as an access vect...

Financially motivated threat actors misusing App Installer

Since mid-November 2023, Microsoft Threat Intelligence has observed threat actors, including financially motivated actors like Storm-0569, Storm-1113, Sangria Tempest, and Storm-1674, utilizing the ms-appinstaller URI scheme App Installer to distribute malware. In addition to ensuring that...

Malvertiser copies PC news site to deliver infostealer

The majority of malvertising campaigns delivering malicious utilities that we have tracked so far typically deceive victims with pages that are almost the exact replica of the software vendor being impersonated. For example, we have seen fake websites appearing like the real Webex, AnyDesk or...

Hackers Utilize MSIX App Packages to Disseminate GHOSTPULSE Malware

Threat Level Attack Report For a detailed threat advisory, download the pdf file here Summary A new cyber attack campaign has emerged, involving the use of fake MSIX Windows app packages masquerading as legitimate applications. These deceptive MSIX packages are employed to distribute a new malwar...

Hackers Using MSIX App Packages to Infect Windows PCs with GHOSTPULSE Malware

A new cyber attack campaign has been observed using spurious MSIX Windows app package files for popular software such as Google Chrome, Microsoft Edge, Brave, Grammarly, and Cisco Webex to distribute a novel malware loader dubbed GHOSTPULSE. "MSIX is a Windows app package format that developers c...

The vulnerabilities of Firefox and Firefox ESR browsers, as well as the Thunderbird email client, are related to insufficient warnings about dangerous actions, allowing a hacker to execute arbitrary code.

The vulnerabilities of Firefox and Firefox ESR browsers, as well as the Thunderbird email client, are related to insufficient warnings about dangerous actions. Exploiting these vulnerabilities allows a remote attacker to execute arbitrary code using specially crafted files with extensions .msix,...

CVE-2023-5727

The executable file warning was not presented when downloading .msix, .msixbundle, .appx, and .appxbundle files, which can run commands on a user's computer. Note: This issue only affected Windows operating systems. Other operating systems are unaffected. This vulnerability affects Firefox 119,...

UBUNTU-CVE-2023-5727

The executable file warning was not presented when downloading .msix, .msixbundle, .appx, and .appxbundle files, which can run commands on a user's computer. Note: This issue only affected Windows operating systems. Other operating systems are unaffected. This vulnerability affects Firefox 119,...