Lamerman
Description Lamerman
It is a very dangerous memory resident multipartite virus. It infects the MBR of the hard drive and overwrites EXE files that are created or copied, i.e. the virus does not affect existing EXE files but newly created/modified files only.
When an infected file is executed the virus affects the MBR and halts the computer, while infecting the virus fools the BIOS virus protection by a simple keyboard trick. On rebooting the virus stays memory resident, hooks INT 13h and overwrites EXE files on writing to them.
The virus contains the text string:
Lamerman .01
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Swine family
Description Swine family
These are memory resident encrypted parasitic viruses. They hook INT 21h, 2Fh and write themselves to the end of COM and EXE files that are accessed. The viruses contain the text string:
COMcomEXEexe
"Swine.3000.b" when executed at 13:05 displays a message in Russian and erases the MBR of the hard drive.
Switch.855
Description Switch.855
It is a dangerous nonmemory resident parasitic encrypted virus. It searches for COM files and writes itself to the end of the file. It searches and deletes CHKLIST.CPS and ANTI-VIR.DAT files. It contains text strings:
The SWITCH is ON The Doc (c)1994
chklist.cps anti-vir.dat *.* *.com
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