Spyware

anti-spywareantispywareSpyware removal softwareTrojan spyHomepage hijackingspyingAnti spywareantispyware programfeatures that spy on the usersoftware
Spyware is a software that aims to gather information about a person or organization, sometimes without their knowledge, and send such information to another entity without the consumer's consent.wikipedia
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Computer virus

virusvirusescomputer viruses
Spyware does not necessarily spread in the same way as a virus or worm because infected systems generally do not attempt to transmit or copy the software to other computers.
"Malware" encompasses computer viruses along with many other forms of malicious software, such as computer "worms", ransomware, spyware, adware, trojan horses, keyloggers, rootkits, bootkits, malicious Browser Helper Object (BHOs), and other malicious software.

Malware

malicious softwaremalicious codemalicious
Users assume in those situations that the performance issues relate to faulty hardware, Windows installation problems, or another malware infection.
A wide variety of types of malware exist, including computer viruses, worms, Trojan horses, ransomware, spyware, adware, and scareware.

Spybot – Search & Destroy

Spybot - Search & DestroySpybotSpybot Search & Destroy
Programs such as PC Tools' Spyware Doctor, Lavasoft's Ad-Aware SE and Patrick Kolla's Spybot - Search & Destroy rapidly gained popularity as tools to remove, and in some cases intercept, spyware programs.
Spybot – Search & Destroy (S&D) is a spyware and adware removal computer program compatible with Microsoft Windows, which has free and paid versions.

Trojan horse (computing)

Trojan horsetrojanTrojan horses
Spyware is mostly classified into four types: adware, system monitors, tracking cookies, and trojans; examples of other notorious types include digital rights management capabilities that "phone home", keyloggers, rootkits, and web beacons.
In German-speaking countries, spyware used or made by the government is sometimes called govware.

SpywareBlaster

JavaCool Software SpywareBlaster
SpywareBlaster is an antispyware and antiadware program for Microsoft Windows designed to block the installation of ActiveX malware.

Keystroke logging

keyloggerkeyloggerskeystroke logger
Spyware is mostly classified into four types: adware, system monitors, tracking cookies, and trojans; examples of other notorious types include digital rights management capabilities that "phone home", keyloggers, rootkits, and web beacons.
For example, an on-screen keyboard will be effective against hardware keyloggers, transparency will defeat some—but not all—screen loggers and an anti-spyware application that can only disable hook-based keyloggers will be ineffective against kernel-based keyloggers.

Lavasoft

Ad-AwareAd-Aware SEAd-Aware Web Companion
Programs such as PC Tools' Spyware Doctor, Lavasoft's Ad-Aware SE and Patrick Kolla's Spybot - Search & Destroy rapidly gained popularity as tools to remove, and in some cases intercept, spyware programs.
Adaware, formerly known as Lavasoft, is a software development company that produces spyware and malware detection software, including Adaware.

Antivirus software

antivirusanti-virusanti-virus software
Moreover, some types of spyware disable software firewalls and antivirus software, and/or reduce browser security settings, which opens the system to further opportunistic infections.
In particular, modern antivirus software can protect users from: malicious browser helper objects (BHOs), browser hijackers, ransomware, keyloggers, backdoors, rootkits, trojan horses, worms, malicious LSPs, dialers, fraudtools, adware and spyware.

Computer and network surveillance

Computer surveillanceInternet surveillanceinternet monitoring
In the US, the term "policeware" has been used for similar purposes.
More often, however, viruses created by other people or spyware installed by marketing agencies can be used to gain access through the security breaches that they create.

Adware

ad-supportedad-sponsoredAd-supported software
Spyware is mostly classified into four types: adware, system monitors, tracking cookies, and trojans; examples of other notorious types include digital rights management capabilities that "phone home", keyloggers, rootkits, and web beacons.
In the view of Federal Trade Commission staff, there appears to be general agreement that software should be considered "spyware" only if it is downloaded or installed on a computer without the user's knowledge and consent.

Facebook

Facebook LiveFacebook.comFacebook, Inc.
Sometimes, spyware is included along with genuine software, and may come from a malicious website or may have been added to the intentional functionality of genuine software (see the paragraph about Facebook, below).
Media outlets classified Onavo Protect as spyware.

Computer worm

wormswormComputer worms
Spyware does not necessarily spread in the same way as a virus or worm because infected systems generally do not attempt to transmit or copy the software to other computers.
Anti-virus and anti-spyware software are helpful, but must be kept up-to-date with new pattern files at least every few days.

Computer security

cybersecuritycyber securitysecurity
Running anti-spyware software has become a widely recognized element of computer security practices, especially for computers running Microsoft Windows.

CoolWebSearch

CoolWebSearch (also known as CoolWWWSearch or abbreviated as CWS) is a spyware or virus program that installs itself on Microsoft Windows based computers.

Windows Vista

VistaMicrosoft Windows VistaWindows Vista Service Pack 1
Since Windows Vista is, by default, a computer administrator that runs everything under limited user privileges, when a program requires administrative privileges, a User Account Control pop-up will prompt the user to allow or deny the action.
Symantec used over 2,000 active malware samples, consisting of backdoors, keyloggers, rootkits, mass mailers, trojan horses, spyware, adware, and various other samples.

PC Tools (company)

PC ToolsSpyware DoctoriAntivirus
Programs such as PC Tools' Spyware Doctor, Lavasoft's Ad-Aware SE and Patrick Kolla's Spybot - Search & Destroy rapidly gained popularity as tools to remove, and in some cases intercept, spyware programs.
PC Tools iAntiVirus is free antivirus software for Intel based Apple Macintosh computers running Mac OS 10.5 (Leopard) and Mac OS 10.6 (Snow Leopard) initially released in June 2008, used to detect and remove malware, spyware and malicious exploits, using both signature-based and heuristic detection.

FinFisher

FinSpyGammaFinFireWire
FinFisher, also known as FinSpy, is surveillance software marketed by Lench IT Solutions plc, which markets the spyware through law enforcement channels.

Technical support

supporttech supportIT Support
Some owners of badly infected systems resort to contacting technical support experts, or even buying a new computer because the existing system "has become too slow".
Common repairs available with online computer support providers are computer virus and spyware removal, computer optimization, Windows Registry repair, device driver issues, Web-related issues, and Windows security updates.

Identity theft

identity thiefidentity thievesfalse identity
In one case, spyware has been closely associated with identity theft.

Internet Explorer

Microsoft Internet ExplorerIEMSIE
The installation of spyware frequently involves Internet Explorer.
Internet Explorer has been subjected to many security vulnerabilities and concerns: much of the spyware, adware, and computer viruses across the Internet are made possible by exploitable bugs and flaws in the security architecture of Internet Explorer, sometimes requiring nothing more than viewing of a malicious web page in order to install themselves.

Comscore

Media MetrixComScore Media MetrixcomScore Inc.
On March 31, 2005, Cornell University's Information Technology department released a report detailing the behavior of one particular piece of proxy-based spyware, Marketscore, and the steps the university took to intercept it.
Comscore admitted that it was in discussion with a spyware firm called DollarRevenue but said that no contract was ever signed, and that once it realized DollarRevenue was distributing Comscore's software, months later, it took steps to prevent the DollarRevenue-distributed software from sending data to Comscore.

Microsoft Windows

WindowsPCMS Windows
Running anti-spyware software has become a widely recognized element of computer security practices, especially for computers running Microsoft Windows.
The AOL National Cyber Security Alliance Online Safety Study of October 2004, determined that 80% of Windows users were infected by at least one spyware/adware product.

Internet Optimizer

DyFuCA
Internet Optimizer, also known as DyFuCA is an adware and a spyware program, which first appeared in 2003.

Onavo

Facebook ResearchFacebook Study
Since the acquisition, Onavo was frequently classified as being spyware, as the VPN is used to monetize application usage data collected within an allegedly privacy-focused environment.

Zango (company)

Zango180 Solutions180solutions
A few spyware vendors, notably 180 Solutions, have written what the New York Times has dubbed "stealware", and what spyware researcher Ben Edelman terms affiliate fraud, a form of click fraud.
StopBadware.org lists a number of undesirable behaviors associated with Zango Easy Messenger, including "behaves as spyware", "automatically runs on startup",