Info.ibyscus.com virus: what it is and how to remove it
Info.ibyscus.com virus is a browser hijacker that mostly targets French computer users and aggressively offers to use suspicious services. This website promotes a search engine that is supposed to deliver results from Yahoo search and various customized widgets.
Facts checked October 7, 2026. Removal steps tested on Windows 11 (26H2) and checked against Microsoft's and the browser makers' current documentation. Sections marked as our earlier report are the original text: they describe the threat as it was then and have not been reviewed since. The 2026 status, the removal steps and the questions are current.
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Info.ibyscus.com virus: summary
| Detection names | No Microsoft detection name is known |
|---|---|
| Distribution | Not recorded in the old report |
| Damage | Not recorded in the old report |
| Name | Info.ibyscus.com virus |
| Type | Fake search engine |
| Symptoms | A changed search engine |
| Removal | Scan the PC with security software to find and remove the malware and anything installed with it. Fortect scans Windows for malware and repairs the system files and settings it damaged. Remove it nowTo use the full-featured product, you have to purchase a license for Fortect. The scan is free. |
Show 5 more facts
| Evidence | One write-up by a security site; details still limited |
|---|---|
| Search page | info.ibyscus.com |
| Browsers | Chrome, Edge and Firefox |
| First seen | 22 November 2016 |
| Facts checked | 7 October 2026 |
Is Info.ibyscus.com virus dangerous? What it collects
From our report of Nov 2016 · not reviewed since
Info.ibyscus.com virus and what should you know about it
Info.ibyscus.com virus is a browser hijacker that mostly targets French computer users and aggressively offers to use suspicious services.
This website promotes a search engine that is supposed to deliver results from Yahoo search and various customized widgets.
For example, users can send 25 SMS per month for free, get the weather forecast, listen to music or French radio stations, look through huge telephone book, etc. The following website is a bogus search engine that delivers modified search results and includes shady third-party links. This computer infection does not differ from other browser hijackers:
- it gets inside the system unnoticed
- adjusts browsers' settings
- starts delivering promotional content
Indeed, in the official website developers reveal that they promote third-party sites, products or services. For this reason, users notice intrusive ads, sponsored links and experience redirects to strange websites. Keep in mind that every click or Info.ibyscus.com redirect to the third-party website may end up with a serious computer-related problem. For example, you may get infected with ransomware and lose all your personal files.
The first sign that your computer has been infected with a browser hijacker is changed homepage and new default search engine. Info.ibyscus.com virus takes full control over the browser in order to promote various third-party websites, products or services. Developers are willing to trick users into clicking the content in order to boost traffic to promotional sites.
Users can easily avoid annoying ads, but it's hard to ignore the link which appears as one of the first search results. As we already mentioned, some of the content may lead to the suspicious websites that might be created for spreading malware or encouraging to install questionable applications.
An application like will find and remove Info.ibyscus.com with all its components within several minutes. Additionally, you can delete all elements related to the browser hijacker yourself. Keep in mind that locating all virus-related files, "helper objects" and silently installed applications may be difficult. However, if you prefer manual Info.ibyscus.com removal, follow our step-by-step guide presented at the end of this article.

How Info.ibyscus.com virus got into your browser
From our report of Nov 2016 · not reviewed since
Developers spread browser hijacker as an optional program and hide it under "Basic" or "Recommended" installation mode.
Therefore, computer users can expect Info.ibyscus.com hijack every time they install free programs using quick setup. Software installation requires paying proper attention. Always choose "Custom" or "Advanced" setup and carefully monitor the process.
Before clicking "Next" and "Agree" buttons read the statements and pay attention to pre-selected items. For example, if you install a PDF converter make sure that you haven't agreed to make ibyscus.com as your homepage and default search engine.
Check your browser and PC
- Address:
info.ibyscus.com
How to remove Info.ibyscus.com virus
How to stop Info.ibyscus.com virus from opening
The search page is only the end point.
These steps remove what sends the browser there, then put the search engine back.
Step 1: Put the search engine back and delete info.ibyscus.com
In Chrome open Settings > Search engine > Manage search engines and site search, make an engine you trust the default, and delete
info.ibyscus.comfrom the list.In Edge type
search engineinto the search box at the top of Settings and open Manage search engines; in Firefox use Settings > Search. Then check the homepage and the new tab page in the same settings, because hijackers change all three.If info.ibyscus.com is back after a restart, an extension, a program or a policy still sets it, so finish the other steps and check again. The settings are the same on Windows 11 and Windows 10.

Chrome on Windows 11: check Search engine and On startup. Full procedure with screenshots: Reset a browser and fix a hijacked search engine
Step 2: Remove extensions you did not add
In Chrome open
chrome://extensions, in Edgeedge://extensions, and in Firefox the menu > Extensions and themes.Remove every extension you do not remember adding, especially search, new tab, coupon, PDF, weather or video downloader add-ons. Check every browser and every profile, because each keeps its own list.
If an extension has no Remove button or comes back, a browser policy holds it (see "Managed by your organization" in the procedure below). The pages are the same on Windows 11 and Windows 10.

Chrome on Windows 11: More > Extensions > Manage extensions. Full procedure with screenshots: Remove a browser extension
Step 3: Uninstall programs you did not mean to install
Info.ibyscus.com virus rarely comes alone: it is usually installed by, or together with, a free program. In Windows 11 open Settings > Apps > Installed apps, in Windows 10 Settings > Apps > Apps & features, and sort by install date.
Uninstall every entry from the day the trouble began that you did not install on purpose, for example a download manager, a converter or a browser you never chose.
Keep drivers and entries from Microsoft, Intel, AMD, NVIDIA or your PC's maker unless you are sure.
Full procedure with screenshots: Uninstall a program or app in Windows On uGetFix
Step 4: Reset the browser
A reset removes what the steps above could miss:
- changed start pages
- site permissions
- hidden settings
In Chrome open Settings > Reset settings > Restore settings to their original defaults; in Edge Settings > Reset settings; in Firefox Help > More troubleshooting information > Refresh Firefox.
Tip: Bookmarks and saved passwords stay, while extensions are turned off and the search engine and start page return to the defaults.
Reset every browser on the PC, including Edge, which Windows 11 and Windows 10 always have.

Chrome on Windows 11: Settings > Reset settings. Full procedure with screenshots: Reset a browser and fix a hijacked search engine
Step 5: Scan the PC, then run the offline scan
A scan finds the parts of Info.ibyscus.com virus that the manual steps cannot see. In Windows Security > Virus & threat protection > Scan options, start a Full scan and quarantine what it reports.
Follow it with Microsoft Defender Antivirus (offline scan) > Scan now, which restarts the PC and checks the disk while Windows and the malware are not running.
It takes about 15 minutes and works the same in Windows 11 and Windows 10. If either scan finds something, run the full scan again after removal until it comes back clean.

Windows 11: Windows Security > Virus & threat protection > Scan options. Full procedure with screenshots: Run a Microsoft Defender Offline scan
Instructions for each browser and system
The detailed steps for every browser and system this guide covers. Open the one you use.
Uninstall from Windows
To remove Info.ibyscus.com virus from the computer completely, you have to find and delete it along with all additional components. Follow the instructions carefully and don't forget to clean our web browsers as well.
Uninstall from Windows 10/8:
- Type Control Panel into the Windows search box and open the result.
- Under Programs, select Uninstall a program.

Uninstall from Windows 7/XP:
- Click on Windows Start > Control Panel (Windows XP users should click on Add/Remove Programs).
- In Control Panel, select Programs > Uninstall a program.

Remove the unwanted program:
- In the Programs and Features window, look for any recently installed suspicious entries, select them, and click Uninstall.
- If User Account Control appears, click Yes to confirm, then complete the removal.

Remove from Google Chrome
Delete malicious extensions from Google Chrome:
- Open Google Chrome, click on the Menu (three vertical dots at the top-right corner) and select More tools > Extensions.
- In the newly opened window, you will see all the installed extensions. Uninstall all suspicious extensions related to the unwanted program by clicking Remove.

Clear cache and web data from Chrome:
- Click on Menu and pick Settings.
- Under Privacy and security, select Clear browsing data.
- Select Browsing history, Cookies and other site data, as well as Cached images and files.
- Click Clear data.

Change your homepage:
- Click menu and choose Settings.
- Look for a suspicious site in the On startup section.
- Click on Open a specific or set of pages and click on three dots to find the Remove option.
Reset Google Chrome:
If the previous methods did not help you, reset Google Chrome to eliminate all the unwanted components:
- Click on Menu and select Settings.
- In the Settings, scroll down and click Advanced.
- Scroll down and locate Reset and clean up section.
- Now click Restore settings to their original defaults.
- Confirm with Reset settings.

Remove from Microsoft Edge
Delete unwanted extensions from MS Edge:
- Select Menu (three horizontal dots at the top-right of the browser window) and pick Extensions.
- From the list, pick the extension and click on the Gear icon.
- Click Remove.

Clear cookies and other browser data:
- Click on the Menu (three horizontal dots at the top-right of the browser window) and select Settings > Privacy, search, and services..
- Under Clear browsing data, pick Choose what to clear.
- Select Cookies and other site data and Cached images and files. (apart from passwords, although you might want to include Media licenses as well, if applicable) and click on Clear.

Restore new tab and homepage settings:
- Click the menu icon and choose Settings.
- Then find On startup section.
- Click Remove next to any suspicious startup page.
Reset MS Edge if the above steps did not work:
- Press on Ctrl + Shift + Esc to open Task Manager.
- Click on More details arrow at the bottom of the window.
- Select Details tab.
- Now scroll down and locate every entry with Microsoft Edge name in it. Right-click on each of them and select End Task to stop MS Edge from running.

Delete extensions from MS Edge (Chromium):
- Open Edge and click select Settings > Extensions.
- Delete unwanted extensions by clicking Remove.

Clear cache and site data:
- Click on Menu and go to Settings.
- Select Privacy, search and services.
- Under Clear browsing data, pick Choose what to clear.
- Under Time range, pick All time.
- Select Clear now.

Reset Chromium-based MS Edge:
- Click on Menu and select Settings.
- On the left side, pick Reset settings.
- Select Restore settings to their default values.
- Confirm with Reset.
- This will disable extensions and reset startup pages but will not delete bookmarks, saved passwords, or browsing history.

Remove from Mozilla Firefox (FF)
Check the list of extensions and look for suspicious applications, add-ons or plugins that may be related to Info.ibyscus.com browser hijacker. We recommend sorting the list of extensions by the date and then you will be able to see and uninstall unwanted entries.
Remove dangerous extensions:
- Open Mozilla Firefox browser and click on the Menu (three horizontal lines at the top-right of the window).
- Select Add-ons.
- In here, select the unwanted extension and click Remove.

Reset the homepage:
- Click three horizontal lines at the top right corner to open the menu.
- Choose Settings.
- Under Home, set your preferred homepage and new tab settings.
Clear cookies and site data:
- Click Menu and pick Settings.
- Go to Privacy & Security section.
- Scroll down to locate Cookies and Site Data.
- Click on Clear Data...
- Select Cookies and Site Data and Temporary cached files and pages, then click Clear.

Reset Mozilla Firefox
If clearing the browser as explained above did not help, reset Mozilla Firefox:
- Open Mozilla Firefox browser and click the Menu.
- Go to Help and then choose Troubleshooting Information.

- Under Give Firefox a tune up section, click on Refresh Firefox...
- Once the pop-up shows up, confirm the action by pressing on Refresh Firefox.

Delete from Safari
Remove dangerous extensions:
- Open Safari, click Safari in the menu at the top-left of the screen, and select Preferences.
- Go to the Extensions tab, look for any suspicious entries, and click Uninstall to remove them.

Clear history and website data:
- Click Safari in the menu and pick Clear History.
- Set Clear to all history and confirm with Clear History.

Reset Safari:
- Click Safari in the menu and select Preferences > Advanced.
- Enable Show Develop menu in menu bar.
- From the menu bar, click Develop and select Empty Caches.

Delete from macOS
Remove the unwanted application:
- From the menu bar, select Go > Applications.
- In the Applications folder, look for any suspicious entries, then drag them to Trash (or right-click and pick Move to Trash).

Delete leftover files and folders:
- Select Go > Go to Folder.
- Enter /Library/Application Support and remove any suspicious folders related to the unwanted program.
- Repeat the same check in the /Library/LaunchAgents and /Library/LaunchDaemons folders, deleting any suspicious entries.

- Finally, empty the Trash to permanently remove the leftovers.
Reset Internet Explorer
Follow the steps below and make sure that browser hijacker hasn't installed any suspicious add-ons to the Internet Explorer. If you find some questionable entries, uninstall them without hesitation.
Remove dangerous add-ons:
- Open Internet Explorer, click on the Gear icon (IE menu) on the top-right corner of the browser
- Pick Manage Add-ons.
- You will see a Manage Add-ons window. Here, look for suspicious plugins. Click on these entries and select Disable.

Change your homepage if it was altered:
- Open IE and click on the Gear icon.
- Select Internet Options.
- In the General tab, delete the Home page address and replace it by your preferred one (for example, Google.com).
- Click Apply and then select OK.

Delete temporary files:
- Press on the Gear icon and select Internet Options.
- Under Browsing history, click Delete...
- Select relevant fields and press Delete.

Reset Internet Explorer:
- Click on Gear icon > Internet options and select Advanced tab.
- Select Reset.
- In the new window, check Delete personal settings and select Reset.

Choose a proper web browser and improve your safety with a VPN tool
Online spying has got momentum in recent years and people are getting more and more interested in how to protect their privacy online.
One of the basic means to add a layer of security - choose the most private and secure web browser. Although web browsers can't grant full privacy protection and security, some of them are much better at sandboxing, HTTPS upgrading, active content blocking, tracking blocking, phishing protection, and similar privacy-oriented features.
However, if you want true anonymity, we suggest you employ a powerful VPN - it can encrypt all the traffic that comes and goes out of your computer, preventing tracking completely.
Lost your files? Use data recovery software
While some files located on any computer are replaceable or useless, others can be extremely valuable.
Family photos, work documents, school projects - these are types of files that we don't want to lose. Unfortunately, there are many ways how unexpected data loss can occur:
- power cuts
- Blue Screen of Death errors
- hardware failures
- crypto-malware attack
- even accidental deletion
To ensure that all the files remain intact, you should prepare regular data backups. You can choose cloud-based or physical copies you could restore from later in case of a disaster. If your backups were lost as well or you never bothered to prepare any, can be your only hope to retrieve your invaluable files.
From our report of Nov 2016 · not reviewed since
How to remove Info.ibyscus.com virus from the computer?
It seems that Info.ibyscus.com browser hijacker mostly affects Windows operating system users and targets Internet Explorer and Mozilla Firefox web browsers.
However, other web browsers may not be immune to this annoying computer infection as well. If this bogus search engine appeared as your new and unwanted homepage, you should not waste your time and initiate Info.ibyscus.com removal immediately. For doing that you have to options – manual and automatic.
All you have to do is to install and/or update the application. Meanwhile, to remove Info.ibyscus.com may be quite complicated and challenging because you have to find all virus-related components yourself. However, our IT specialists prepared a step-by-step guide below.
Questions about Info.ibyscus.com virus
How do I change my search engine back from info.ibyscus.com?
Open the browser's search engine settings, choose the search engine you want and set it as default, then remove info.ibyscus.com from the list.
If the option is greyed out or a note says it is controlled by an extension, remove that extension first and try again. If the browser says it is managed by your organization, a policy holds the setting, and the policy steps in this guide apply.
When the change will not stick, reset the browser: it restores the default search engine and start page and turns off extensions, but keeps bookmarks and saved passwords. Then check Installed apps for a program that may put info.ibyscus.com back.
Did info.ibyscus.com come with a program I installed?
Most likely, yes. Search hijackers such as info.ibyscus.com usually arrive with free software, where an extra offer is pre-ticked in the installer, or as an extension that promises something useful, such as file conversion, maps, recipes or streaming.
Look at Settings, Apps, Installed apps sorted by install date: whatever was installed just before the search engine changed is the main suspect. Uninstall it, then remove any extension you do not recognise. In future, choose the custom or advanced option in installers and untick extra offers, and install extensions only from the official store pages of publishers you know.
What is info.ibyscus.com?
It is the search page used by the browser hijacker Info.ibyscus.com virus. It has no search index of its own: it forwards your queries to another search engine and adds ads and tracking along the way.
People rarely choose it on purpose; it becomes the default search engine, home page or new tab after an extension, program or policy changes the browser settings. The page itself is not malware, but it should not be in your browser if you did not set it. The steps above remove the source and restore your settings.
Is info.ibyscus.com dangerous?
It is not designed to infect the PC, but it is not neutral either. It logs searches, adds sponsored results that are hard to tell apart from real ones, and its ad partners are not checked as strictly as those of major search engines.
Some hijacker pages have shown ads for fake updates, tech support scams and unwanted software. The main harm is to privacy. Remove Info.ibyscus.com virus, and if you entered personal data on sites reached through its results, check those sites carefully.
Do I have to fix every browser?
Yes, every one where the search engine or start page changed. In the cases we checked, Info.ibyscus.com virus affected Chrome, Edge and Firefox.
Each browser stores its own search settings and extensions, so fixing one does not fix the others, and Windows-level changes such as shortcuts can affect each browser differently. Work through them one at a time:
- remove the extension
- check the policies
- restore the search engine
- start page
If you sync a browser, stay signed in so the fix spreads to your other computers.
Did info.ibyscus.com record my searches?
Almost certainly. Logging is the point of a hijacker search page: each query, with your IP address, browser details and the result you clicked, is valuable to advertisers.
The operators of info.ibyscus.com can store and share that data under their own privacy policy, which you never agreed to knowingly. There is no way to delete it from their side. What you can do is stop the flow:
- remove Info.ibyscus.com virus
- clear cookies and site data for info.ibyscus.com
- treat sensitive searches made in the meantime as known to a third party
What do I lose if I reset Chrome or Edge?
Less than you might think. A reset turns off all extensions, which you can turn back on one by one, restores the default search engine, home page, new tab and pinned tabs, and clears cookies, so you are signed out of most sites.
Bookmarks, history, saved passwords and autofill data stay. Firefox's equivalent, Refresh Firefox, keeps the same essentials but removes add-ons completely. Before you reset, make sure you know your main passwords or have them saved, since you will need to sign in again.
Why does my search page look slightly different?
Because it is not your search engine's own page. Info.ibyscus.com virus sends searches to info.ibyscus.com, which may copy the colours and layout of a known search engine while adding its own ads and tracking. Small differences give it away:
- an unfamiliar address
- more ads than usual
- a different logo
- a search box with a brand name you do not recognise
Remove the hijacker and set your search engine again from the browser's settings to get the real page back. Then delete the hijacker's entry from the saved search engines list.
Is only one browser affected?
Often not. Programs that install hijackers tend to change every browser they find, and sync can carry the extension to other computers signed in to the same browser account. Check Chrome, Edge and Firefox, even the ones you rarely use, and look at the shortcut targets on the desktop and taskbar for each.
If you use sync, remove the extension while signed in so the removal syncs too. Also check the On startup setting and the new tab page, because hijackers change those as well as the search engine.
Will Fortect remove Info.ibyscus.com virus?
Fortect scans Windows for malware and unwanted programs and repairs the system files and settings they change, and its free scan shows what it finds on your PC before you decide anything.
For Info.ibyscus.com virus, follow the plan above as well: the browser steps take back permissions and settings that no scanner treats as a threat, and uninstalling the program that brought it removes the source.
Run Microsoft Defender's full scan and, if anything was found, its offline scan as a second opinion. If the symptoms are gone after the plan and both scans are clean, there is nothing more to do.
Sources
- FTC: How to recognize, remove and avoid malware (read October 7, 2026)
- Microsoft Learn: Microsoft Defender Offline (read October 7, 2026)
- Microsoft Learn: How Microsoft names malware (read October 7, 2026)