A potentially unwanted application (PUA) is a program that contains adware, installs toolbars or has other unclear objectives. There are some situations where a user may feel that the benefits of a potentially unwanted application outweigh the risks.
For this reason, ESET assigns such applications a lower-risk category compared to other types of malicious software, such as trojan horses or worms. While installing your ESET product, you can decide whether to enable detection of PUAs, as shown below:
You can modify the PUA configuration settings in your program settings at any time. See the following Knowledgebase article for instructions on switching detection modes:
When a PUA is detected, you will be able to decide which action to take:
If additional detection windows with an identical detection name are displayed immediately afterward, click Ignore to close them (any additional windows are related to a detection that occurred before you excluded signature from detection).
A software wrapper is a special type of application modification that is used by some file-hosting websites. It is a third-party tool that installs the program you intended to download but adds additional software, such as toolbars or adware. The additional software may also make changes to your web browser’s homepage and search settings. File-hosting websites often do not notify the software vendor or download recipient that modifications have been made and often hide options to opt out. For these reasons, ESET classifies software wrappers as a type of PUA to allow users to accept the download or not.
Registry cleaners are programs that may suggest that the Windows registry database requires regular maintenance or cleaning. Using a registry cleaner might introduce some risks to your computer system. Additionally, some registry cleaners make unqualified, unverifiable or otherwise unsupportable claims about their benefits and/or generate misleading reports about a computer system based on the results of a "free scan". These misleading claims and reports seek to persuade you to purchase a full version or subscription, usually without allowing you to evaluate the registry cleaner before payment. For these reasons, ESET classifies such programs as PUA and provides you the option to allow or to block them.
If PUA detection is enabled in your ESET product, websites that have a reputation for promoting PUAs or that have a reputation for misleading users into performing actions that might have negative implications on their system or browsing experience will be blocked as potentially unwanted content. If you receive a notification that a website you are attempting to visit is categorized as potentially unwanted content, you can click Go Back to navigate away from the blocked web page or click Ignore and continue to allow the site to load.