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added examples and link to criteria page on pua

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martyav 2019-09-26 16:26:07 -04:00
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windows/security/threat-protection/windows-defender-antivirus/detect-block-potentially-unwanted-apps-windows-defender-antivirus.md
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@ -26,11 +26,13 @@ manager: dansimp
Potentially unwanted applications are not considered viruses, malware, or other types of threats, but they might perform actions on endpoints which adversely affect endpoint performance or use. _PUA_ can also refer to an application that has a poor reputation, as assessed by Microsoft Defender ATP, due to certain kinds of undesirable behavior. Potentially unwanted applications are not considered viruses, malware, or other types of threats, but they might perform actions on endpoints which adversely affect endpoint performance or use. _PUA_ can also refer to an application that has a poor reputation, as assessed by Microsoft Defender ATP, due to certain kinds of undesirable behavior.
These kinds of undesirable PUA behavior include: For example:
- Ad injection into web browsers * **Advertising software:** Software that displays advertisements or promotions, including software that inserts advertisements to webpages.
- Various types of software bundling * **Bundling software:** Software that offers to install other software that is not digitally signed by the same entity. Also, software that offers to install other software that qualify as PUA.
- Driver and registry optimizers that detect issues, request payment to fix the errors, and then make no changes or optimizations (also known as "rogue antivirus" programs) * **Evasion software:** Software that actively tries to evade detection by security products, including software that behaves differently in the presence of security products.
For more examples and a discussion of the criteria we use to label applications for special attention from security features, see [How Microsoft identifies malware and potentially unwanted applications](../intelligence/criteria.md).
Potentially unwanted applications can increase the risk of your network being infected with actual malware, make malware infections harder to identify, or waste IT resources in cleaning them up. Potentially unwanted applications can increase the risk of your network being infected with actual malware, make malware infections harder to identify, or waste IT resources in cleaning them up.