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| EXE_Bug.A - Virus Details
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EXE_Bug.A
This is a common virus.
Aliases: CMOS Killer
Size: 512 bytes
Frequency: 10
Characteristics:
- Infects MBR
- Infects diskette boot record
- Infects EXE files
- Memory resident
- Multipartite virus
- Does random, less obvious, damage over time
- Modifies CMOS
Information:
CMOS is altered to indicate that no drive A: exists, to force the system to boot from the hard drive. Trojanizes .EXE files on the hard disk so that they overwrite the first track of the hard disk when they are run. Trojanizes .EXE files on floppy disks by turning them into EXE_Bug droppers. Trojanized .EXEs are overwritten and thus destroyed.
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