eFile.com, a website that helps individuals file tax returns, was injected with malicious code, resulting in the delivery of malware to site visitors.
Despite not being run by the Internal Revenue Service (IRS), the software service was seen for several weeks serving malware before it was removed earlier this week. The eFile.com compromise was first noticed in mid-March, when a user posted the first details of the problem on Reddit: users were served a bogus browser update and redirected to a fake “network error” page.
Users were presented with either one of two executables called “update.exe” or “installer.exe” when they clicked on the “browser update” link.
Read More: Tax Return Filing Service eFile.com Caught Serving Malware
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