Alex.368
Description Alex.368
This is a nonresident harmless virus. It infects COM files in a standard way (except COMMAND.COM). The virus contains the text string:
The One Night Virus (C) Alex Hacker *.COM
The virus is not memory resident but copies small resident programs into the interrupt vector table. The first program erases text from screen by nice method some times after installation. The second program writes byte FEh to port 60h (?).
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Ekoterror
Description Ekoterror
It's a memory resident dangerous multipartite stealth virus. On execution of infected file it writes itself into MBR of hard drive (it occupies the sectors from 0/0/1 till 0/0/5 - track/head/sector) and returns the control to the host program. On loading from infected sector it hooks INT 8, 13h, then by using INT 8 it hooks INT 21h and writes itself at the beginning of the .COM-files on their creating.
Sometimes it decrypts and types:
EkoTerror (C) 1991 ATK-toimisto P.Linkola Oy
Kovalevysi on poistettu käytöstä luonnonsuojelun nimessä.
Vihreässä yhteiskunnassa ei saa olla ydinsähköllä toimivia kovalevyjä.
and then hangs up the computer. It infects incorrectly some types of hard drives, DOS hangs up on loading in these cases.
ELCN.374
Description ELCN.374
These are not dangerous nonmemory resident parasitic viruses. They search for COM files, then write themselves to the beginning of the file. "ELCN.374" does not infect the COMMAND.COM files. The viruses display the messages in Russian. They also contains the texts:
"ELCN.374": COMMAND.COM
"ELCN.424": Bryansk ELCN
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