Exterminate It! Antimalware

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Known threats:699,742 Last Update:October 27, 11:19

Testimonials

Hi!
I just wanted to thank you. My computer was frozen last night thanks to an online Easter card that was sent to me via the funcards site. I couldn't do anything but open windows.
I tried to open the exterminate it program that I purchased last year but the funcards site was blocking it, too!
I decided to purchase a new year of service (knowing my current one is going to expire sometime this month). It took two hours of searching, but exterminate it fixed my computer last night.
I have no idea how you all do it, but I would be lost without your service.
Thank you!!!

Valerie

DyFuCA.Internet.Optimizer

Aliases of DyFuCA.Internet.Optimizer (AKA):

[Kaspersky]TrojanDownloader.Win32.Dyfuca.cj, TrojanDownloader.Win32.Dyfuca.de, TrojanDownloader.Win32.Dyfuca.gen
[Eset]Win32/TrojanDownloader.Dyfica.NAA trojan
[Panda]Adware/nCase, Spyware/Dyfuca

How to Remove DyFuCA.Internet.Optimizer from Your Computer^

You can effectively remove DyFuCA.Internet.Optimizer from your computer with Exterminate It!.

After installing the program, run a scan to display a list of the files associated with DyFuCA.Internet.Optimizer in the Scan Result screen and remove these files. For information about running scans and removing malware files, see the Exterminate It! Help.

Adware

Software that is designed to launch advertisements, frequently pop-up ads, on a user’s computer and/or to redirect search results to promotional Web sites. Adware programs are often built into freeware or shareware programs, where the adware creates an indirect ‘charge’ for using the free program. Sometimes a trojan can silently download an adware program from a Web site and install it onto a user’s machine.

Hacker tools, or Browser Hijackers, can also download an adware program by exploiting a web browser’s vulnerability. Browser Hijackers may tamper with the browser settings, redirect incorrect or incomplete URLs to unwanted Web sites, or change the default home page. They can also re-direct a user’s searches to “pay-to-view” (often pornographic) Web sites.

Typically, many adware programs do not leave any marks of their presence in the system: they are not listed on Start | Programs; they add no icons to the system tray; and they don’t show up on the task list. In addition, adware programs seldom provide an uninstallation procedure, and attempts at manually removing them frequently result in failure of the original carrier program.

Be Aware of the Following Adware Threats:

SpediaBar, SubSearch, Kitten.Free.Sex, Popuper, PagoMaster.

BHO

Browser Helper Object, or BHO, is a dynamic link library (DLL) that runs whenever Internet Explorer is started. Generally, BHOs are included in installation of third-party programs where they are offered as enhancements of the browser functionality. For example, many Internet Explorer plug-ins are in essence BHOs.

BHOs can be installed silently or “legitimately” when a user fails to read the fine print included in the freeware program’s EULA (End User License Agreement).

Because BHOs are small programs, they can do anything that other programs can do. It’s not easy to detect the BHOs installed on the computer. This enables hackers and other malevolent users to employ the BHO functionality in their interests, for example, secretly install adware programs or gather various statistics on the user’s browsing trends.

Be Aware of the Following BHO Threats:

Win32.Agent.db, TotalVelocity.zSearch, iChoose, Lixy, BookedSpace.BS3.

Backdoor

Of all trojans, backdoor trojans pose the greatest danger to users’ PCs because they give their authors remote control over infected computers. They are downloaded, installed, and run silently, without the user’s consent or knowledge. Upon installation, backdoor trojans can be instructed to send, receive, execute and delete files, gather and transfer confidential data from the computer, log all activity on the computer, and perform other harmful activities.

Be Aware of the Following Backdoor Threats:

Iroffer, Afcore.ar, WordMacro.Spiral, Institution.FWB, WCA.

Hijacker

Software that seizes control of a computer’s resources to proliferate itself or use them for other malicious purposes.

There are several types of hijackers. The most common are:

  • Browser hijackers – Alters the existing Internet browser settings so that a user is redirected to unwanted or malicious Web sites. These include programs that change the browser Home page or replace a popular search service’s home page with its own fake copy, whose search results point to particular malicious or irrelevant sites.
  • Autorun hijackers – Automatically run certain programs on start-up of a user’s computer.

Be Aware of the Following Hijacker Threats:

CWS.MSUpdater, CWS.Ctrlpan, websecuritypage.com, Zango, CWS Homepage Hijacker.

Downloader

A type of trojan. The primary purpose of downloaders is to install malicious code on a user’s computer. However, they can enable other malicious uses. For example, they can be used to continually download new versions of malicious code, adware, or “pornware.” They are also used frequently used to exploit the vulnerabilities of Internet Explorer.

Downloaders are typically written in script languages such as VBS or JavaScript.

Be Aware of the Following Downloader Threats:

Dichotomy, AFX.Tunneld, SillyDl.AWW, Ply.3468b, Eaf.

How Did My PC Get Infected with DyFuCA.Internet.Optimizer?^

The following are the most likely reasons why your computer got infected with DyFuCA.Internet.Optimizer:

  • Your operating system and Web browser's security settings are too lax.
  • You are not following safe Internet surfing and PC practices.

Downloading and Installing Freeware or Shareware

Small-charge or free software applications may come bundled with spyware, adware, or programs like DyFuCA.Internet.Optimizer. Sometimes adware is attached to free software to enable the developers to cover the overhead involved in created the software. Spyware frequently piggybacks on free software into your computer to damage it and steal valuable private information.

Using Peer-to-Peer Software

The use of peer-to-peer (P2P) programs or other applications using a shared network exposes your system to the risk of unwittingly downloading infected files, including malicious programs like DyFuCA.Internet.Optimizer.

Visiting Questionable Web Sites

When you visit sites with dubious or objectionable content, trojans-including DyFuCA.Internet.Optimizer, spyware and adware, may well be automatically downloaded and installed onto your computer.

Detecting DyFuCA.Internet.Optimizer^

The following symptoms signal that your computer is very likely to be infected with DyFuCA.Internet.Optimizer:

PC is working very slowly

DyFuCA.Internet.Optimizer can seriously slow down your computer. If your PC takes a lot longer than normal to restart or your Internet connection is extremely slow, your computer may well be infected with DyFuCA.Internet.Optimizer.

New desktop shortcuts have appeared or the home page has changed

DyFuCA.Internet.Optimizer can tamper with your Internet settings or redirect your default home page to unwanted web sites. DyFuCA.Internet.Optimizer may even add new shortcuts to your PC desktop.

Annoying popups keep appearing on your PC

DyFuCA.Internet.Optimizer may swamp your computer with pestering popup ads, even when you're not connected to the Internet, while secretly tracking your browsing habits and gathering your personal information.

E-mails that you didn't write are being sent from your mailbox

DyFuCA.Internet.Optimizer may gain complete control of your mailbox to generate and send e-mail with virus attachments, e-mail hoaxes, spam and other types of unsolicited e-mail to other people.