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On login to my bank, Firefox has a popup asking me to open or download a file called ibank.dll. This happens only on this browser, not on Explorer, Opera, or Safari.

  • 5 replies
  • 7 have this problem
  • 36 views
  • Last reply by zzxc

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When logging in on my bank, Firefox also loads a box with "You have chosen to open ibank.dll which is a document from https://[bank name site]. I can still log into my account, but the extra window is annoying. This happens only on Firefox. It does not occur if I log in from Explorer, Opera, or Safari. I use an iMac.

URL of affected sites

http://

All Replies (5)

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Does this happen after you clear the cache?

Follow the steps at How to clear the Firefox cache

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Clearing the cache and/or deleting cookies does not affect this problem. Checking or unchecking allow popups does not affect the problem, either.

This occurs only on Firefox.

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Clearing cache and/or erasing cookies does not solve the issue.

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Clearing cache and/or deleting cookies does not resolve this issue. This happens only on Firefox.

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According to this, it is a problem with the bank site's software:

http://softsolder.wordpress.com/2010/03/13/why-friends-dont-let-friends-run-windows-mystery-banking-dll/

According to this, it could be malware (search/find on the page, it is near the bottom):

http://www.secureworks.com/research/threats/blackenergy2/