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Malware

VIGILANT CLEANER

aka VIGILANT CHECKER

Wiper malware discovered by Japanese security firm Mitsui Bussan Secure Directions (MBSD), which is assumed to target Japan, the host country of the 2021 Summer Olympics.

VIGILANT CLEANER, also known as VIGILANT CHECKER, is a Windows malware family.

Background

A wiper uncovered by the Japanese security company Mitsui Bussan Secure Directions (MBSD), believed to be aimed at Japan, which hosted the 2021 Summer Olympics. Beyond going after the usual Office-related documents, it also singles out file formats tied to the Japanese word processor Ichitaro.

Source: Malpedia (Fraunhofer FKIE).