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Grief Ransomware Gang Claims 41 New Victims, Targeting Manufacturers; Municipalities; & Service Companies in U.K. & Europe
Grief Operators Earned an Estimated 8.5 Million British Pounds in Four Months Key Findings: The Grief Ransomware Gang (a rebrand of the DoppelPaymer Ransomware Group) claims to have infected 41 new victims between May 27, 2021—Oct. 1, 2021 with their ransomware.Over half the companies listed on Grief’s underground leak site are based in the U.K. and Europe. The Grief Ransomware Gang appears to…
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Waterloo, ON – Oct. 12, 2021 -- eSentire, recognized globally as the Authority in Managed Detection and Response (MDR), today announced the expansion of its award-winning MDR services with Microsoft Azure Sentinel, as part of its integration with the complete Microsoft 365 Defender and Azure Defender product suites supporting Microsoft SIEM, endpoint, identity, email and cloud security services.…
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Security advisories — Nov 25, 2019

CVE-2019-13720 Chrome Zero-Day

The threat:

On October 31, 2019, Google released security updates for the Chrome browser to mitigate an actively exploited zero-day vulnerability [1]. CVE-2019-13720 is a use-after-free vulnerability in the Chrome audio component. If exploited, use-after-free vulnerabilities may allow for various multiple malicious actions. Due to the reports of active exploitation of CVE-2019-13720, users are recommended to upgrade to the most recent version of Chrome as soon as possible.

What we’re doing about it:

What you should do about it:

Additional information:

Details on CVE-2019-13720 remain minimal as Google is holding onto information until users have time to update. Kaspersky identified the zero-day vulnerability and has released some additional details regarding attacks in the wild [3].

A second vulnerability, CVE-2019-13721, was also fixed in the most recent release of Chrome. CVE-2019-13721 is also a use-after-free vulnerability but there are currently no reports of exploitation in the wild.

Indicators of compromise [3]:

References:

[1] https://chromereleases.googleblog.com/2019/10/stable-channel-update-for-desktop_31.html

[2] https://support.google.com/chrome/a/answer/6350036?hl=en

[3] https://securelist.com/chrome-0-day-exploit-cve-2019-13720-used-in-operation-wizardopium/94866/