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Malwarebytes Detects 'prefs.js' as a Virus - Wtf?

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Malwarebytes detects that my prefs.js is a virus. How is this possible? Should I be concerned? What do i do about this?

Malwarebytes detects that my prefs.js is a virus. How is this possible? Should I be concerned? What do i do about this?
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Additional System Details

Installed Plug-ins

  • Shockwave Flash 32.0 r0

Application

  • User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:66.0) Gecko/20100101 Firefox/66.0

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cor-el
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17334 solutions 156717 answers

Pref.js is a text file that only contains configuration data and Firefox settings. Does Malwarebytes give any detail about what is wrong? You should contact Malwarebytes about this.

(also posted at mozillaZine: http://forums.mozillazine.org/viewtopic.php?f=38&t=3049364)

Pref.js is a text file that only contains configuration data and Firefox settings. Does Malwarebytes give any detail about what is wrong? You should contact Malwarebytes about this. ''(also posted at mozillaZine: [http://forums.mozillazine.org/viewtopic.php?f=38&t=3049364])''

Modified by cor-el

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Question owner

cor-el said

Pref.js is a text file that only contains configuration data and Firefox settings. Does Malwarebytes give any detail about what is wrong? You should contact Malwarebytes about this. (also posted at mozillaZine: http://forums.mozillazine.org/viewtopic.php?f=38&t=3049364)

Malwarebytes classifies it as a PUP.Optional.Conduit.

Wjat do you suggest?

''cor-el [[#answer-1215410|said]]'' <blockquote> Pref.js is a text file that only contains configuration data and Firefox settings. Does Malwarebytes give any detail about what is wrong? You should contact Malwarebytes about this. ''(also posted at mozillaZine: [http://forums.mozillazine.org/viewtopic.php?f=38&t=3049364])'' </blockquote> Malwarebytes classifies it as a PUP.Optional.Conduit. Wjat do you suggest?
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cor-el
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17334 solutions 156717 answers

See:

Did you recently started using Malwarebytes or are you using it for a long time (i.e. did this data recently get added or could this be a leftover entry, possibly from a Legacy extension, in prefs.js that is no longer used)?

See: *https://blog.malwarebytes.com/detections/pup-optional-conduit/ Did you recently started using Malwarebytes or are you using it for a long time (i.e. did this data recently get added or could this be a leftover entry, possibly from a Legacy extension, in prefs.js that is no longer used)?
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cor-el said

See: Did you recently started using Malwarebytes or are you using it for a long time (i.e. did this data recently get added or could this be a leftover entry, possibly from a Legacy extension, in prefs.js that is no longer used)?

I've used malwarebytes for many years. But I recently clean installed my PC with win 10. I copied my ff profile in it after it was clean installed. I do remember that before I saved my profile that I was having an issue with ff where in the top of ff Options it kept saying, "Your organization has made changes to your software...." something along those lines.

''cor-el [[#answer-1215416|said]]'' <blockquote> See: *https://blog.malwarebytes.com/detections/pup-optional-conduit/ Did you recently started using Malwarebytes or are you using it for a long time (i.e. did this data recently get added or could this be a leftover entry, possibly from a Legacy extension, in prefs.js that is no longer used)? </blockquote> I've used malwarebytes for many years. But I recently clean installed my PC with win 10. I copied my ff profile in it after it was clean installed. I do remember that before I saved my profile that I was having an issue with ff where in the top of ff Options it kept saying, "Your organization has made changes to your software...." something along those lines.
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