Novosibirsk.1000
Description Novosibirsk.1000
It is a dangerous memory resident parasitic virus. It hooks INT 21h and writes itself to the end of COM and EXE files that are executed or accessed. When any infected program is executed the virus also searches for first EXE file in current directory and infects it.
The virus uses not accurate way to install itself into the system memory. As a result it can halt the system. The virus cancels access to hidden disk files by DOS Find calls, as a result the hidden files on computer stays "invisible" for DOS file managers and "DIR /AH" command. The virus contains the text strings:
WRA
NOEMS
Novosibirsk
Check other viruses! Be aware! Use Antiviral Software
Rogue.1807
Description Rogue.1807
This is a dangerous memory resident parasitic virus. It hooks INT 21h and writes itself to the end of COM and to the middle of EXE files. The virus deletes the CHKLIST.* files. Depending on the system date it also hooks INT 8 and displays the message:
Now you got a real virus! I'm the ROGUE all!
On the same date it corrupts the DBF files.
On September 29 it displays the message:
MS-DOS cheking MCB's.
Please wait...
I'am The Rogue.
Rom Family
Description Rom Family
These are not dangerous memory resident parasitic viruses. They hook INT 21h and write themselves to the end of COM files that are executed. While installing they display:
"Rom.331": Drive Not Ready.
"Rom.397": ROM BIOS not compatible.
and return to DOS without execution of the host program. While infecting "Rom.397" renames the infected file to "WHY_ME", infects it and then renames back to original name.
|