A stealth virus

Table of Contents — Volume 19, Number 7—July Please use the form below to submit correspondence to the authors or contact them at the following address:. Julian W. Highlight and copy the desired format. Data is collected weekly and does not include downloads and attachments.

View data is from. The Altmetric Attention Score for a research output provides an indicator of the amount of attention that it has received. The score is derived from an automated algorithm, and represents a weighted count of the amount of attention Altmetric picked up for a research output. Section Navigation. Facebook Twitter LinkedIn Syndicate. Books and Media Cite This Article. Article Metrics. However, in order to do this, the virus must be resident in memory when the antivirus program is executed, and the antivirus program may be able to detect its presence.

In addition to hiding the boot information, file stealth viruses attack. The result is the destruction of the files involved. With a full stealth virus, all normal calls to file locations are cached, while the virus subtracts its own length so that the system appears clean.

You need a clean system so that no virus is present to distort the results of system status checks. Thus you should start the system from a trusted, clean, bootable diskette before you attempt any virus checking.

A polymorphic virus is one that produces varied but operational copies of itself. This strategy assumes that virus scanners will not be able to detect all instances of the virus. Updated on: May 24, A computer virus that actively hides itself from antivirus software by either masking the size of the file that it hides in or temporarily removing itself from the infected file and placing a copy of itself in another location on the drive, replacing the infected file with an uninfected one that it has stored on the hard drive.

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