Fridrik Skulason
Virus Bulletin, February 1991, pp.7-8
ISSN 0956-9979
February 1991
The virus known as Den Zuk was discovered over two years ago, and infections have occasionally been reported since then. It is a boot sector virus with one major effect and one, probably unintentional, harmful side-effect.
One of the earliest reports of the virus came from Venezuela - leading to the incorrect conclusion that it was written there. The virus was instead written in Indonesia, where several related viruses are known to exist. It contains the following text message, which is not displayed.