A couple days ago, my Norton antivirus detected several viruses. PUP.Optional.WebSearchInfo was in the list. I quarantined all of them and restarted the infected computer after quarantine. But it seems to be still there in another scanning after restarted. This is annoying me because I am not sure what this virus is and how to get rid of it successfully.
Being detected by many popular antivirus programs recently, PUP.Optional.WebSearchInfo is known by many computer users who may accidentally bring in this nasty Trojan virus. This virus is casually installed by people who do not pay much attention with the installing process while the computer is installing some free software. This virus often attaches with popular media and updating version of popular software. If you choose quick install instead of custom setup, the software which packs Trojan virus will install the virus it have to your computer as well. If you are not sure about whether the installation package is safe or not, you need to be careful while installing. Malicious links or unknown files online are also dangerous as well. Careless clicking on links of unknown resources would allow virus intrusion because they contain uncountable viruses and it could make profits from those viral links.
PUP adware has bad reputation and generates bad influences on the infected computer. It is often annoying to deal with adware because when you visit online it always shows unwanted promoting ads. The unwanted pop-ups is not only tempting you to click on it to bring in other malicious threats, but also redirecting you to unsafe websites continuously. Online activities are severely interfered when you are trying to use the infected browser correctly. Not only because of the original homepage has been changed to a strange domain, but also contains many pop-up ads on the viewing Webpage. In short, it begins interference at the time it has got into the target system and instant removal is needed to protect your computer.
PUP.Optional.WebSearchInfo allows cyber-criminals to break into the infected computer without being noticed and it could disable executable programs installed on your computer and cause system crash. Also it will change important settings on your computer to allow remote control from cyber criminals. Other than that, it will modify your registry settings and important key value to make it difficult to be removed. As soon as you use Norton to remove it, you will get an error saying that Remove Failed just like the following picture shows:
Manual removal is a complicated and risky process, so please back up all important data before making any changes on your computer. Here are some instructions to handle with the Trojan horse manually, and be cautious when going through the following steps.
Step1. Show Hidden Files
(1). Press Win+R to get run option
(2). Type in Control Panel and hit enter to get Control Panel
(3). Click on Appearance and Personalization link
(3). Click on Folder Options link
(4). Click on View tab in Folder Options window
(5). Tick Show hidden files, folders, and drives under Hidden files and folders tab
(6). Click Apply to effect， then click OK at the bottom of the Folder Options window.
Step2. Stop virus processes in the Windows Task Manager.
(1). Press Ctrl+Alt+Del keys together to get Windows Task Manager
(2). Click More details
Step3. Remove all the malicious files registry entries through Registry Edit.
PUP.Optional.WebSearchInfo is a malicious Trojan virus which implants itself to the infected computer secretly and makes your computer and other working process slowly during infection. It can install the itself into the computer system without your awareness and consciousness. To make matters worse, the Trojan is used as a tool for hackers to achieve hacking purpose to steal your information. It is recommended to remove it with a complete and fast procedure. Users can follow instruction here to have it manual deleted instantly.
(1). Using Registry Editor to delete all the related registry entries.
*Guides to open Registry Editor:
Press Win+R key together then Registry Editor will pop up.
(2). Find out and remove the associated files of PUP.Optional.WebSearchInfo
Step 4. Clear all the malicious cookies in browsers.
* Google Chrome: Click on the Tools menu → select Options → Click “Under the bonnet” tab → locate “Privacy” section → browsing data” button → “Delete cookies and other site data” to delete all cookies from the list.
* Internet Explorer: Click “Tools” → Click “safety” → “delete browsing history” → Tick “cookies” box and click delete
* Firefox:: Click “Tools” → Click “Options” → Click “Privacy” → Click “remove individual cookies”
The stubborn PUP.Optional.WebSearchInfo usually comes mistakenly with the downloading of some free software or packing with the existing threats such as Trojan horse in the victim laptop or desktop computer. Keeping it would bring dangerous to both the victim comp8uter and the victims themselves. As we stated before, this virus bring in other threats into the infected computer meanwhile messing up the infected browser. It keeps redirecting you to its domain so as to add traffics. It uploads the whole viewing histories and favourites on the infected computer to its server; also will it take a look at saved bank information. If you want to get rid of PUP.Optional.WebSearchInfo and tools are not working, manual removal could be a good removal method.
Published by & last updated on January 9, 2014 11:15 am