Christmas.868
Description Christmas.868
This is a non-dangerous memory-resident virus that by a standard manner hits .COM- and .EXE-files when they are loaded into memory (the length of the .EXE-files before they are infected increases up to the next multiple of a block - 200h). Before infecting the next file, this virus displays the character '#'. From the 23rd of every month, this infector plays a Russian Christmas tune. The virus hooks INT 21h.
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Headcrash.1067
Description Headcrash.1067
It is not a dangerous memory resident parasitic virus. The virus stays TSR only on odd dates, hooks INT 21h and writes itself to the end of .COM files that are executed. Depending on the system timer the virus displays:
Headcrash Industries celebrate 001F hex
HeadHog.555
Description HeadHog.555
It is a dangerous memory resident parasitic virus. It hooks INT 21h and writes itself to the end of .COM and EXE files that are executed, opened or accessed by Get/Set Attributes DOS call. The virus has bugs and may halt the system while infecting files. It contains the text:
This is HeadHog v1.1 Created by -== Raver ==- 1997
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