Threat Encyclopedia

Selected viruses, spyware, and other threats: sorted alphabetically

Delta

Delta is a resident encrypted COM and EXE infector which increases the infected files by 1163 bytes. It does not attack EXE files longer than 64372 bytes but it does not check the length of COM files at all. When infecting the virus checks the date and it presents itself on November 4th. In some cases it will alter the type of installed diskettes drives in the CMOS memory and will write the following message on the monitor:

Good bytes from (DEL)ta Virus !!!
Reset in 30 seconds !

and after a while it resets the computer. The text “Brazil - 02/96” is not displayed.

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