'Spyware' is a term that refers to a very wide category of malicious software that has been intentionally designed to intercept or take partial control of a computer's operation without the consent of that computer's owner or lawful user. When the term 'Spyware' is taken in a literal sense, it suggests that the software clandestinely monitors the activities of the user operating the computer, however, it has over the years, come to be known as software that hampers the operating systems efficient functioning for the benefit of a third party, usually the person who created the Spy-ware. By downloading onto a system the Spy program will also make entries in the system registry. While it is imperative to remove the Spying software from the computer it is as imperative to remove all traces from the registry as well. This can be achieved with the help of Adware Spyware removal tool.

How Does It Affect The Computer?

'Spyware' is candid software that downloads itself onto a person's computer and constantly operates in the background and collects personal information of the user. For instance, it will record the entry from the keyboard every time the user enters a username and password or credit card details. The Spy program will monitor and record the information as well as which site the username and password was entered into. It will then mail this information to the host computer that the Spy program came from. In order to do this the Spy software must take over some processor time. It does this by delaying the operation of other programs or applications running on the system. This slows the system down drastically. The system can be revamped with free Adware Spyware removal utilities such as Quake removal Spyware tool.

Are Spyware Removal Utilities Not Enough?

Many Spy-ware removal utilities do remove the Spy softwares from the system but many of them cannot delve into the registry and remove all the entries therein. The registry will have to be scrubbed clean with special Spyware removal utility such as Quake removal Spy-ware utility software. Many of the Spy-ware entries will be associated with critical system files and so the anti-Spyware program will not delete them from the registry. Only a good Spy-ware removal utility such as Yahoo Spyware removal tool will scan the registry and detect the broken links and determine it they will hamper the efficient operating of the system if they are removed. If the Yahoo Spy-ware removal decides that they can be safely removed the entries will be deleted. If the entries are left in the registry they may link up to the site where they came from initially and download the Spy software again. This is why it is imperative to clean the registry with a reliable registry cleaner such as the free Microsoft Spyware Adware removal tool.{ezinearticles.com}

Pop-up ads are certainly great annoyances that a user comes across while surfing the Internet. Many websites use pop-ups for advertisement. While some banners simply disappear, others seem to persist. Adware is often responsible for this persistence. Adware is software that tracks the user’s surfing patterns and displays pop-ups. Since it spies on the user’s keystrokes, this software is often grouped with spyware. Numerous security software companies provide adware spyware removal tools to deal with the annoying advertisement windows. A standard adware spyware removal tool not only removes adware and spyware, but also deals with many other forms of malicious software that work in the background without the user’s knowledge. Many adware spyware removal tools provide protection from data-mining, aggressive advertising, trojans, browser hijackers, and unwanted dialers.

Adware spyware removal tools are also available for free, usually on Web sites of security software companies. Adware spyware removal tools are sometimes made available as part of anti-virus software packages. The installation process is simple, requiring just a few clicks. Apart from removing adware, these tools also monitor the network to prevent more adware from entering the computer. Adware spyware removal tools, however, do not deal with the problem of viruses.

Adware spyware removal tools perform a variety of functions. They scan all fixed and removable drives, memory, and repair the windows registry. Most tools use the Code Sequence Identification (CSI) technology to detect and kill malignant software. Aggressive spyware and malicious contents are removed. Many adware spyware removal tools provide full quarantine support. They protect against bandwidth stealing programs and enhance your computer’s overall performance. Passwords, credit card numbers, and other vulnerable data are made secure. Fake adware spyware removal tools can do more harm than good. Most fake software packages are carriers of malignant programs.

Spyware is a software program that collects information about you such as browsing habits and preferences for websites you visit. This information is sent back through your Internet connection to a computer designated by the developer and dumped into a database. This information may then be sold to third parties such as advertisers or agencies.

Adware is a software program that will display pop up windows and/or banners as advertisements. They also come in the form of browser toolbars. These may be shown to you whether you are online or not.

These advertisements are not only annoying, but can consume a lot of your computer's resources making it difficult to accomplish even the simplest of tasks.

Spyware and adware can infect your computer through a variety of channels. The most common infection seems to be through the downloading and installing of free software. Other means could be through email, instant messages, or even websites you visit.

If you are concerned that you may be infected with spyware or adware, the following lists five sure-fire signs that your computer is infected:

Pop-up ads
While many websites use pop-up ads that are built in to their website and not installed on your computer, some adware will use pop-ups as well. The pop-ups that are generated from spyware or adware are usually frequent, occur no matter which website you are visiting, and may even show adult-related content.

Changing of your homepage
Some adware and spyware programs will change your browser's homepage to a website they want to direct you to. If this happens, and you try to change it back without success, you are infected.

Browser Redirection
Even if your homepage is not changed, there are other ways to get you to visit the website they want you to see. They can cause unexpected browser redirections (you are taken to a different website than you were trying to visit) and place Internet shortcuts on your desktop, usually to gaming, free software, or adult sites.

Browser Toolbars
Many reputable companies develop toolbars that attach to your Internet browser and provide useful tools to aid in your Internet usage - Google and Yahoo are two examples. But, there are also some not-so-reputable toolbar developers as well. If you have a new browser toolbar that you don't know where it came from and you cannot get rid of it no matter how hard you try, then you are infected.
Severely Decreased Performance

If you have noticed a severe decrease in your computers performance lately, you may be infected. Spyware and adware programs are watching your every move and this eats up a lot of your computer's resources. They may also be transmitting information about you back through your Internet connection that is hogging bandwidth and slowing your browsing down. Don't think that your cable or DSL connection can handle this traffic. Nearly all broadband providers have much lower upload speeds than download speeds, which are never advertised.

If unexpected actions are taking place while using your computer, you may be infected with spyware or adware. By looking for certain behaviors, you can identify whether your computer is infected or not. If you are infected, it is time to find a good quality anti-spyware software package and clean up the damage.{ezinearticles.com}

"Spyware" is no longer simply a nuisance to enterprises. It is estimated that 90% of desktop PCs are infected with some form of "Spyware" (Source : US National Cyber Security Alliance). According to Gartner between 20 and 40% of enterprise helpdesk calls are now related to unwanted "Spyware" programs.

There are different classes or types of "Spyware". These are summarised below.
· Tracking Cookies. Cookies are text files saved by the browser that allow tracking of user activity on a website. Users typically allow cookies as some sites won't work without them or they are useful in that they store information about personal preferences, IP addresses, login information, user options and date and time stamp of the last time the site was visited. Cookies may also contain any information provided by a user during a particular visit - including any personal information provided in the course of completing forms. Cookies are at the most benign end of the "Spyware" spectrum.

· Adware. This form of "Spyware" is responsible for generating the by now familiar pop-up, pop-under, banner, floating and animated advertising seen whilst surfing the web. Adware typically uses advanced scripting that manipulates the browser by exploiting flaws in Java, ActiveX, the operating system and the browser itself. Adware may collect information for cookies and report information directly to sites on the Internet. On clicking-through ads additional cookies or utilities may be installed silently. Some adware makes changes to browser settings - resetting the homepage for example - or to the user system (including Windows registry changes). Often clicking on 'No' or 'Cancel' buttons within the advert result in the same code executing as if the user had clicked on 'Yes' or 'OK'. Adware is the greyest area of "Spyware" - some Adware certainly should be considered as malicious 'malware'.

· Scumware. Scumware modifies the contents of a web page adding hypertext links and alternative text. Scumware can also position competitive ads over the originals. Scumware can also install hidden or background processes and services and should therefore be considered as malware.

· Malware. Originally malware referred to viruses, worms and Trojan horses. The term also applies to the more disruptive forms of "Spyware". Such programs might enable third parties to take control of microphones and web cams installed on a particular client, make changes to browser and systems settings, launch Web activity even when all browser sessions are shut down, install hidden or background processes and services. Keyloggers fall into this category. Malware is the most damaging of all types of "Spyware" from a risk perspective. It should be noted that this form of "Spyware" is increasingly being spread through Instant Messaging applications.

1.1 Different Variants, Different Risks
The different types of "Spyware" present different risks to enterprises. Cookies raise privacy concerns but are relatively low risk.

Adware can begin to impact heavily on productivity. Orthus are aware of several instances where close to 200 different pieces of Adware were present on a single client degrading performance to the point where the client was unusable. In addition to user productivity, productivity is affected through increased help desk calls and the time spent by help desk staff in cleaning up or re-building infected machines - which in turn further impacts user productivity whilst the infected machines are unavailable.

The risk of data leakage - of both personal and corporate information - is a very real threat with the most malicious type of "Spyware".

Mitigating the Risk
The main technologies available to mitigate against the risks associated with "Spyware" within the enterprise environment are discussed below.

Mitigation techniques are two-tiered or two-part - at the gateway and at the desktop level.

Desktop Protection
At the desktop or client there are notably three technologies available to mitigate against the risks posed by "Spyware". These are personal firewalls, dedicated anti-spyware programs, and traditional desktop anti-virus (AV) tools.

AV
In some respects forms of "Spyware" strongly resemble viruses. They are uniquely identifiable, can be detected by scanning the client machine and are sometimes packaged as a set of files that can be removed to clean up the infected system. However many forms of "Spyware" do not reside on disk as persistent files - such as hostile ActiveX and Java applets. The motives, delivery mechanisms and often the removal of "Spyware" is different however from the protocols followed for viruses and worms.

"Spyware" is also different in that there is no one definition agreed on what constitutes "Spyware". Some programs that might be classed as "Spyware" - such as Microsoft's Windows Update Notifications - are useful, disclose their tracking capabilities, do not disrupt desktop operation impacting user productivity, and are distributed by responsible companies. "Spyware" therefore needs to be classified and identified by the actions it performs and the level of risk - complicating detection and removal, as the users must be given a choice over what is permitted.
AV vendors - notably Trend Micro, McAfee and Symantec - already have software that is very good at scanning files before they execute. The software also has mature enterprise management suites and the vendors have support teams in place to handle enterprise customers' needs.

Independent reviews and tests show repeatedly that AV tools are not as good at catching "Spyware" as dedicated anti-spyware programs. Whilst AV tools may detect 99% of viruses this number falls considerably to perhaps 70% - when considering "Spyware" programs.

Using the next releases of desktop AV tools to protect desktops against "Spyware" is extremely attractive to enterprises. There is no need to deploy yet another software agent on every machine within the desktop population, there is no need to monitor yet another 'console'. AV already incorporates the management features that enterprises require - such as 'headless operation' and centralised reporting. Enterprises achieve greater consistency with standardisation on a smaller number of vendors, leading ultimately to cost efficiencies.

Dedicated Anti-Spyware Programs
There is an ever-increasing list of dedicated anti-spyware programs available from vendors including Ad-Aware from LavaSoft which is the most popular product with some 128 million downloads to date. Other notable products include SpyBot Search and Destroy, CounterSpy and Spyware Eliminator. Microsoft has also entered the market with Windows Antispyware following their acquisition of Giant Company Software.

Whilst dedicated anti-spyware programs are more effective today at detecting and removing Spyware than AV products this will change over the forthcoming quarters. Most of the dedicated anti-spyware offerings are available as free downloads aimed at consumers / individual users and not at large enterprises. Site licensing is rarely available for example. Some of the emerging vendors have enterprise offerings on their roadmaps. However these companies are small, lack corporate / financial stability in some cases, and typically do not have the support teams and infrastructure in place to handle large enterprise customers.

Orthus are of the view that many standalone dedicated anti-spyware programs will cease to exist in the relatively near future and the dedicated anti-spyware market will not be significant in years to come as established vendors offer integrated AV/anti-spyware/personal firewall products.

Personal Firewalls
Just as AV tools now include some "Spyware" protection so many of the personal firewalls available offer a level of protection as well. These include McAfee, Check Point and Internet Security Systems (ISS) with the release of Proventia Desktop in March 2005. Sygate is following a similar path to Check Point and ISS.

Personal firewalls are recommended for particularly mobile clients that are regularly taken outside of the corporate perimeter and used to access corporate systems from DSL connections in the home and public WLAN hotspots, where typically direct Internet access is also allowed. They are also recommended for fixed desktop and mobile clients in smaller locations where there is little or no gateway level protection in place and where again direct Internet access is available from those locations.

Gateway Protection
Desktop protection is only half of the story when it comes to "Spyware" protection. Gateway level protection is also available.

Blue Coat offer a range of proxy appliances that, in conjunction with popular URL filtering solutions, offer a strong defence against "Spyware". "Spyware" often secretly installs via "drive-by" installers, which install "Spyware" in the background without any user interaction. Blue Coat combats this with anti-spyware policy controls that inspect, filter and block web content associated with "Spyware" installation software. This preventive approach is critical when "Spyware" originates from an unknown web site - not yet categorised within URL filtering solutions - and when there is no known signature available to detect the malicious program.

Gateway protection incorporating a strong URL filtering solution is particularly good in preventing programs on infected systems from sending information back to "Spyware" sites, mitigating against the productivity impact of Adware but also the more serious privacy and data leakage concerns associated with more malicious code. URL filtering solutions also offer some protection from infection in the first place by preventing users from visiting known infected sites.

Gateway solutions typically incorporate logging and reporting features that can be used to identify infected systems thus facilitating a targeted "Spyware" clean-up periodically. This capability is also useful to target mobile clients (notebook PCs) that are not protected with Personal Firewalls that become infected whilst outside the corporate perimeter.

Recommendations
In light of the above Orthus suggest that enterprises take the following approach to mitigating the risks posed by "Spyware" today :

* deploy gateway "Spyware" protection to prevent back-channel communication by infected systems augmented with a leading URL filtering solution.

* use granular reporting capabilities from gateway solutions to identify infected systems and choose a dedicated anti-spyware tool to clean-up infected systems on a case-by-case / ad hoc basis.

* do not deploy dedicated anti-spyware programs across the desktop population - instead wait for AV vendors to add strong anti-spyware capabilities in future releases.

* force remote office branch office based systems to access the Internet via the corporate gateway (where gateway anti-spyware protection exists).

* for remote and mobile clients, in addition to AV, install a recognised personal firewall to increase protection.{ezinearticles.com}

The need for computer users to install Anti-Spyware programs becomes more and more evident each day, as more and more users experience problems caused by Spyware. The problems can be annoying, but essentially harmless, such as a slow downed computer or irritating pop-up windows. Unfortunately, the Spyware programs are capable of causing much more sever harm than that. For example, Spyware has been linked to identity thefts as well as credit card frauds. Spyware programs can gather and transmit very sensitive information about you to their owner, such as lists of all your visited websites, details from your online purchases, e-mail addresses and phone numbers to friends, family and colleagues, credit card numbers and expiration dates etcetera. Even though most Spyware programs are used for commercial gain, such as targeting you with the right type of advertising, it is not hard to imagine how much harm this type of information can cause in the hands of a malicious and fraudulent person.

When you decide to use a Spyware Removal program, you will be facing a lot of decision making. There are several types of Spyware Removal programs. A majority of the Spyware Removal program is available online and you can download them to your computer and start using them immediately. Some Spyware Removal programs are quite expensive, while others cost just a few dollars. There are also Totally Free Spyware Removal programs available. Some Totally Free Spyware Removal programs is only a basic version of a larger and more advanced Spyware Removal Program, and if you want the advanced version you will have to pay a fee to upgrade your Totally Free Spyware Removal program. Other Totally Free Spyware Removal programs include all features from the beginning. Many computer users prefer to start with Totally Free Spyware Removal programs, since this makes it possible to try out several Spyware Removal programs without having to pay any money. All computer users have their own requirements and preferences when it comes to security, and you might have to try more than one Totally Free Spyware Removal program before your find the Totally Free Spyware Removal program that is ideal for you.

Only download Totally Free Spyware Removal program from reputable sites. When the existence of malicious Spyware programs became widely known among the computer users, a lot of Spyware companies designed fake Totally Free Spyware Removal programs. These Totally Free Spyware Removal program will not work, and your computer can still be infected by Spyware. Some fake Totally Free Spyware Removal programs will even install their own Spyware on your computer. The fake Totally Free Spyware Removal programs are heavily marketed on the Internet. You have probably noticed banner ads that warn you about Spyware or even claim that your computer is already infected with Spyware. They will offer a Totally Free Spyware Removal program, and if you click on the link you are redirected to a website where you can download a seemingly great and totally free Spyware Removal program. Avoid such frauds by only downloading Totally Free Spyware Removal programs from sites of good reputation.{ezinearticles.com By Jason Frovich}