Rencodes.4206
Description Rencodes.4206
It is a dangerous memory resident encrypted companion virus. It hooks INT 21h and creates companion .COM files when DOS accesses to .EXE files. Depending on the system date and time it renames all files of current directory to FILEnnnn.nnn names, and creates the RENCODES.BRE file with the list of renamed files. The virus manifests itself with some video effect, and contains the text strings:
COMEXE
THIS IS THEVIRUS
File0000.000
RENCODES.BRE
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Aids.552
Description Aids.552
It is a very dangerous memory resident parasitic virus. It hooks INT 3, 21h and writes itself to the end of .EXE files that are closed.
This infector writes a part of its code into each 16th .COM file that is closed. These files cannot be recovered because the original information is not saved. When such file is executed the virus displays "AIDS" in large letters (graphic video mode).
Aids.872
It is a harmless nonmemory resident parasitic virus. It searches for .COM files and writes itself to the end of the file. It contains the text string:
Aids
Aija
Description Aija
It's a dangerous memory resident boot stealth virus. On loading from infected floppy it hits MBR of hard drive and returns control to host sector. On loading from infected MBR it hooks INT 13h and writes itself into boot sectors of floppies. The virus saves its second part and original sector at the last two sectors of disk (of the first logical disk on hard drive). On March, 25th it erases disk sectors and displays the message:
FINNISH_SPRAYER.1. Send your Painting +358-0-4322019 (FAX), [Aija]
It contains the internal strings also:
Ai
Tks to B.B., Z-VirX all.. [Aija]
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