Microsoft reported that APT28 (Fancy Bear, Forest Blizzard) used a custom tool to elevate privileges and steal credentials in compromised networks. This GooseEgg tool leveraged CVE-2022-38028 (7.8 high, disclosed 11 October 2022 by Microsoft; Windows Print Spooler Elevation of Privilege Vulnerability) as a zero-day since at least June 2020 (possibly as early as April 2019) which was 2 years 4 months. APT28 is publicly attributed to Russian General Staff Main Intelligence Directorate (GRU). IOC provided. 🔗 https://www.microsoft.com/en-us/security/blog/2024/04/22/analyzing-forest-blizzards-custom-post-compromise-tool-for-exploiting-cve-2022-38028-to-obtain-credentials/
cc: @serghei @campuscodi @briankrebs @jwarminsky
#APT28 #cyberespionage #Russia #FancyBear #ForestBlizzard #CVE_2022_38028 #eitw #activeexploitation #GooseEgg
Since 2019, Forest Blizzard has used a custom post-compromise tool to exploit a vulnerability in the Windows Print Spooler service that allows elevated permissions. Microsoft has issued a security update addressing this vulnerability as CVE-2022-38028.
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