Virus Database


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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Demon.348

Description Demon.348

These are harmless not memory resident parasitic viruses. They search for .COM-files of current directory and C:COMMAND.COM file and write themselves at their ends. They contain the internal text string:
_=-DEMON-=_

Demon3b.4313

Description Demon3b.4313

These are dangerous memory resident stealth and polymorphic parasitic viruses. They hook INT 21h and write themselves to the end of COM and EXE files that are accessed. The viruses use quite complex stealth routine (including disinfection of the files in some cases).
Demon3b.4313,4390
These are very dangerous viruses. They have several errors and may halt the system or corrupt the files while infecting them. The viruses contain the texts:
"Demon3b.4313": [demon4] Hellfire
"Demon3b.4390": [demon4] BETA! DONT DISTRIBUTE Hellfire

"Demon3b.4390" displays:
Demon4 is Watchingall

Demon3b.4767,5670
These viruses delete anti-virus checksum files, disable tracing, avoid infection of some anti-virus programs. While accessing to write-protected disks the viruses display the message:
Disk is Write Protected
Please Unprotect it AND
Press any key to continue . . .

The viruses contain more text strings:
TBDRVXXX bc *
CHKDSK.EXE ZIP.EXE ARJ.EXE SCANDISK.EXE DEFRAG.EXE
SCANANTIVIRAV.AN.F-PROT.EXETBDRIVER.EXENAVTSR
VSAFE.COMTBSETUP.EXETBUTIL.EXEVSHIELD.EXE
[demon3b] Hellfire

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