Tuesday, May 17, 2022

North Korea-related Malicious Document Files Using CVE-2021-40444 Vulnerability

The ASEC analysis team has recently discovered the distribution of malicious files that include a new vulnerability CVE-2021-40444 which was revealed by Microsoft in September. It is noteworthy that the confirmed document files are all North Korea-related materials. North Korea-related malicious files have been evolving in new ways since the past. Seeing that the attackers are using a new vulnerability, they are quickly applying the new techniques in their distribution.

CVE-2021-40444 is a vuln…

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