AsmVirus
Description AsmVirus
It is a dangerous nonmemory resident overwriting virus. It searches for .ASM files, renames the file with BAK file name extension, then overwrites the .ASM file with the hexadecimal code of the virus that is converted to ASM format. The result of infection looks as follows:
.MODEL TINY
.CODE
ORG 256
a:
DB 0FCh
DB 0B4h
all
< the hexadecimal code of the virus >
...
ENDS
END a
When that file is assembled, the result is a copy of the virus.
The virus contains the internal text strings:
0123456789ABCDEF.MODEL TINY
.CODE
ORG 256
a:
ENDS
END a
h
DB
*.asm bak 0
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Fasola.2215
Description Fasola.2215
It is not a dangerous nonmemory resident parasitic virus. It searches for EXE-files, then writes itself to the end of the file. The virus looks for the string "JAREK=OFF" in Environment area, and performs no action if that string is found. Depending on the system date and time the virus displays the photo of some man (virus author?), and displays the message:
Jarek Szczukowski wita !!!
The virus also contains the text strings:
*.* *.exe
Virus (C) Ja? Fasola'95 all rights reserved
Tylko MKS-VIR to porz?dny program antywirusowy
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Pamietajall MKS-VIR
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Fasolo.149
Description Fasolo.149
These are dangerous non-memory resident overwriting viruses. They search for .COM-files and overwrite them. On December 4th, they erase hard drive sectors. The viruses contain the internal text strings:
*.com
_ Fasolo VIRUS _
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