Symptoms
- Homepage changed to an unfamiliar site
- Default search engine changed without your input
- New toolbar appeared in the browser
- Setting reverts back even after you change it
Likely causes
- CommonBrowser hijacker extensionSome extensions are designed specifically to redirect search traffic for profit.
- CommonBundled software installed alongside a free downloadFree installers sometimes include opt-out browser changes.
- PossibleBrowser sync carrying the change from another deviceIf sync is on, a change made on one device applies everywhere.
- Less commonMalware modifying browser shortcuts directlyMore aggressive hijackers edit the shortcut's target to force a homepage.
What to do
- Open your browser's extension list and remove anything unfamiliar or recently added.
- Go to browser settings and manually reset the homepage and default search engine.
- Check your list of installed programs for recent unfamiliar installs and remove them.
- Right-click your browser's desktop shortcut, choose Properties, and check the 'Target' field for anything appended after the .exe, removing it if present.
- Reset the browser to default settings from its settings menu.
- Run a malware scan with your system's built-in security tool.
When to call a pro
If the hijack returns repeatedly after cleanup, a professional malware removal service can do a deeper check.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.