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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

Toprefsys

Threat LevelLow threatDamageHighDistributionNot widespread
Common name:Toprefsys
Technical name:Cookie/Toprefsys
Threat level:Medium
Type:Cookie
Effects:   It is a small text file stored on the computer when visiting web pages. Though it does not pose a risk by itself, malicious use by other software could threaten affected users' privacy. It does not spread automatically using its own means.
Affected platforms:

Windows 95

First detected on:March 10, 2005
Detection updated on:March 10, 2005
StatisticsNo

Brief Description 

    

Toprefsys is a cookie.

Cookies are small text files stored in the browser on the user's computer, when visiting web pages.

Cookies store information that can be used for several purposes: to personalize web browsing, to gather demographic information about how many users visit a page, to monitor which banners are displayed to the user, etc.

These uses are not, in theory at least, malicious.

However, keep in mind that the misuse of cookies could threaten an individual's privacy.

 

Toprefsys does not spread automatically using its own means. It needs an attacking user's intervention in order to reach the affected computer. The means of transmission used include, among others, floppy disks, CD-ROMs, email messages with attached files, Internet downloads, FTP, IRC channels, peer-to-peer (P2P) file sharing networks, etc.