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In those days virus was an act of rebellion rather than causing loss to the victim. Most virus writers loved to get those extra giggles from their creations. The ‘Hymn’ virus brought some delayed giggles! Once this DOS-based malware was downloaded, it lurked until the month and date corresponded (April 4, for example, or May 5), and would then trash information in the C: disk boot sector. And then it would add insult to injury by playing the national anthem of what was, in 1990 when Hymn was created, the USSR.
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