Threat Description

Hopper

Details

Aliases: Hopper
Category: Malware
Type: Virus
Platform: VBS

Summary



Hopper virus infects .VBS files and Word documents, as well as HTML files. VBS/Hopper.A infects other .VBS files by prepending it's code to the original file.



Removal



Automatic Disinfection

Allow F-Secure Anti-Virus to disinfect the relevant files.

For more general information on disinfection, please see Removal Instructions.



Technical Details



Some variants of this virus family also infect HTA and HTT files. Some of them lower the security settings of IE's zones. To ensure that the virus works on all platforms, when infecting VBS and DOC files, it comments out the HTML-specific part of itself. It infects documents when closes them.

Some variants of VBS/Hopper are able to infect Excel files as well.





Technical Details: Katrin Tocheva, F-Secure


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