e.tre456_worm_osx
How to delete the virus above?
MacBook Air, Mac OS X (10.7.3)
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Best reply
1. Click in the menu bar and choose “Force Quit”.
In the window that opens up, select “Safari” and click “Force Quit.
2. Relaunch Safari holding the shift key down.
3. If this doesn’t help, use Malwarebytes for Mac to remove malware.
https://www.malwarebytes.org/antimalware/mac/
Download, install , open, and run it by clicking “Scan” button to remove adware.
Once done, quit Malwarebytes Anti-Malware for Mac.
Install guide: https://support.malwarebytes.com/docs/DOC-1817
Uninstall Guide: https://support.malwarebytes.com/docs/DOC-1190
The installer may ask you to allow it in System Preferences > Security & Privacy. Allow it.
Reselect your search engine, reset homepage and disable all extensions and test.
Reset search engine: https://support.apple.com/guide/safari/customize-your-search-ibrwe75c2a3c/mac
Set your Home Page. https://support.apple.com/guide/safari/set-your-homepage-ibrw1020/mac
Section: Manage extensions: https://support.apple.com/guide/safari/use-safari-extensions-sfri32508/mac