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Avast detects URL:MAL when opening firefox.No issue with IE or Chrome,after troubleshooting realized problem is NoScript addon.Can it have been infected?

  • 3 replies
  • 7 have this problem
  • 59 views
  • Last reply by sebax123

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avast -network shield

Infection Details

URL: http://188.24.140.190/ Process: C:\Program Files (x86)\Mozilla Firefox\firefox.exe Infection: URL:Mal

avast -network shield Infection Details URL: http://188.24.140.190/ Process: C:\Program Files (x86)\Mozilla Firefox\firefox.exe Infection: URL:Mal

Chosen solution

I doubt the No script addon got infected. However, try the following:

First, try to reset Firefox. Refresh Firefox - reset add-ons and settings. This simple step will eliminate many Firefox problems with only one click.

Download and Install MalwareBytes Anti-Malware, run a full Scan. http://www.malwarebytes.org/. This helps check that there are no viruses on your computer causing issues. You can uninstall this program after you clean off any infections.

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All Replies (3)

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Chosen Solution

I doubt the No script addon got infected. However, try the following:

First, try to reset Firefox. Refresh Firefox - reset add-ons and settings. This simple step will eliminate many Firefox problems with only one click.

Download and Install MalwareBytes Anti-Malware, run a full Scan. http://www.malwarebytes.org/. This helps check that there are no viruses on your computer causing issues. You can uninstall this program after you clean off any infections.

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Hi Tyler, Thanks for quick reply

Initially after some troubleshooting I noticed that I could make infection pop up disappear:

From Configure how firefox connects to the internet -> changed from "use system proxy settings" to "auto-detect proxy settings" or "no proxy"

With this option modified, the pop up from avast didn't appear any longer when opening Firefox.

However I noticed that both Chrome and IE were set to work on the same "use system proxy settings" and they weren't causing problems...so I assumed the problem still has to be with firefox.

After changing back the option in firefox to "use system proxy" I got again the notice, but saw that when opening firefox in safe mode the issue was gone again.

I tracked it to the no script addon, after removing it, the issue disappear regardless of proxy config settings...when I reinstall it, it appears again.

I am now running in depth virus scans to see were the actual infection is.

It seems to me it is expoiting a vulnerability in this addon, I will try the reset also.

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Managed to fix issue, after in depth scan with avast free edition detected and deleted 23 infections.

I am all clean now, installed noscript back and no more issues.