WhatsAll.562
Description WhatsAll.562
It is a dangerous nonmemory resident parasitic virus. It searches for .COM files, then writes itself to the end of the file, the "$" character at the very end of the file is the virus ID. Depending on its infection counter the virus drops all letters on the screen and reboots the computer. The virus contains a text in Russian: "That's all".
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Jeff.812
Description Jeff.812
It is a very dangerous nonmemory resident parasitic virus. It searches for .COM files and writes itself to the end of the file. On July, 7th it displays:
JEFF is visiting your harddiskall
and erases FAT of current disk.
Jel.841
Description Jel.841
This is a dangerous memory resident encrypted parasitic virus. It hooks INT 21h, and writes itself to the end of COM files that are executed. The virus deletes the anti-virus databases ANTI-VIR.DAT and CHKLIST.MS. On January 12th and August 19th, the virus erases the CMOS. The virus contains the text:
Virus JEL v2.1, Coded by Lock in
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