Windows Defender??

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  1. Posts : 3
    Windows 10 Pro 19042.844-2004 20H2 x 64
       #1

    Windows Defender??


    Windows 10 version 20H....OS build 19042.844

    I don't know a lot about this stuff, but I received this notification, (pua.win32 piriform bundler) and took steps to manually remove the potential intruder. But in hindsight, I do have questions about it.
    First of all, if it's only a "potentially" unwanted application, in which case would it be wanted? Isn't it intrusive and violating my space? And secondly, if in fact it is one of the bad guys, why won't Windows 10 Defender automatically block its entry?
    Any comments are welcome, but please, keep it simple.

    Thanks.....Dave
      My Computer


  2. Posts : 16,592
    Windows 10 Home x64 Version 22H2 Build 19045.4046
       #2

    Dave,

    The warning was telling you that the installer contained something other than what it purported to contain i.e. a potentially unwanted application.

    Several online utilities have these. Their installation file includes, say, a third-party anti-malware application as well as the utility that you think you are installing.
    - The degree to which you can avoid installing the PUP using the main utility's custom install procedure also varies.
    - Some utilities also provide an alternative installation file [sometimes an 'offline installer'] that does not contain the PUP. You generally have to search around their website to find these.

    Piriform was bought by Avast and downloaded installation files for some or all of their utilities, such as CCleaner, now include the Avast antimalware utility without there being any notification of this on their website.

    So -
    - You wanted, say, CCleaner.
    - Your installation file includes not only CCleaner but also Avast.
    - Avast is therefore a potentially unwanted application.

    Denis
    Last edited by Try3; 01 Mar 2021 at 11:53.
      My Computer


  3. Posts : 194
    Windows 10
       #3

    Do you use Speccy?
      My Computer


  4. Posts : 56,795
    Multi-boot Windows 10/11 - RTM, RP, Beta, and Insider
       #4

    David McCauley said:
    Windows 10 version 20H....OS build 19042.844

    I don't know a lot about this stuff, but I received this notification, (pua.win32 piriform bundler) and took steps to manually remove the potential intruder. But in hindsight, I do have questions about it.
    First of all, if it's only a "potentially" unwanted application, in which case would it be wanted? Isn't it intrusive and violating my space? And secondly, if in fact it is one of the bad guys, why won't Windows 10 Defender automatically block its entry?
    Any comments are welcome, but please, keep it simple.

    Thanks.....Dave
    Dave, what gave you the notification? Where did it come from? Had you just downloaded some or accessed a downloaded app installer? If so, what was it? The Installer? That would answer a lot of questions. Thanks.
      My Computers


  5. Posts : 1,604
    Win 10 home 20H2 19042.1110
       #5

    Windows Defender is an Anti-virus program. It doesn't necessarily detect 'adware'. Just be aware of what is pre-checked before installing a program. You may also need to add AdwCleaner (free) from Malwarebytes to your defenses. https://www.malwarebytes.com/adwcleaner/
      My Computers


  6. Posts : 3
    Windows 10 Pro 19042.844-2004 20H2 x 64
    Thread Starter
       #6

    Digmor Crusher said:
    Do you use Speccy?
    f14tomcat said:
    Dave, what gave you the notification? Where did it come from? Had you just downloaded some or accessed a downloaded app installer? If so, what was it? The Installer? That would answer a lot of questions. Thanks.
    Jacee said:
    Windows Defender is an Anti-virus program. It doesn't necessarily detect 'adware'. Just be aware of what is pre-checked before installing a program. You may also need to add AdwCleaner (free) from Malwarebytes to your defenses. https://www.malwarebytes.com/adwcleaner/
    First of all I don't have any idea what Speccy is. So no, I don't use it.
    The notification simply appeared this morning in Windows security (App & Browser Control) I followed specified steps, and got rid of it. So that's good.
    Windows Defender being an Anti-virus program, and not necessarily an adware detector, may explain a lot.
    I'm a very cautious user, although I do download music from YouTube occasionally, so it's usually a surprise for me when I get a warning of this nature. Anyway it also said that the threat was Low, so I won't get too excited. I've got green checkmarks and no action needed across the board in Windows Security. So I guess that's good.

    Thanks for your input. I appreciate it......Dave
      My Computer


  7. Posts : 56,795
    Multi-boot Windows 10/11 - RTM, RP, Beta, and Insider
       #7

    David McCauley said:
    First of all I don't have any idea what Speccy is. So no, I don't use it.
    The notification simply appeared this morning in Windows security (App & Browser Control) I followed specified steps, and got rid of it. So that's good.
    Windows Defender being an Anti-virus program, and not necessarily an adware detector, may explain a lot.
    I'm a very cautious user, although I do download music from YouTube occasionally, so it's usually a surprise for me when I get a warning of this nature. Anyway it also said that the threat was Low, so I won't get too excited. I've got green checkmarks and no action needed across the board in Windows Security. So I guess that's good.

    Thanks for your input. I appreciate it......Dave
    Your welcome, Dave. PUPs are usually harmless, but that's an individual user decision. Glad all is well.
      My Computers


  8. Posts : 16,592
    Windows 10 Home x64 Version 22H2 Build 19045.4046
       #8

    David McCauley said:
    ... not necessarily an adware detector, may explain a lot.
    Dave,

    No, it doesn't. It has nothing to do with adware.

    PiriForm bundles Avast within the installation files of its utilities. Hence, "PUP".

    Denis
      My Computer


  9. Posts : 132
    Windows 10 Pro x64 Version 22H2 Build 19045.4046
       #9

    I wouldn't be without UnChecky
    Unchecky - Keeps your checkboxes clear. Free and very handy at blocking unwanted software that may come bundled with some installers.
      My Computer


  10. Posts : 31,239
    10 Home x64 (22H2) (10 Pro on 2nd pc)
       #10

    David McCauley said:
    ... I received this notification, (pua.win32 piriform bundler) and took steps to manually remove the potential intruder. But in hindsight, I do have questions about it....

    The standard CCleaner installer comes with other bundled software. CCleaner is relatively benign, in that the bundled software is legit, like Avast, and if you are careful you can un-tick all the bundled 'potentially unwanted' extras. Some other 'bundles' are less so, with a genuinely unwelcome payload that's difficult to avoid.

    If you want CCleaner without the bundled 'extras' and that won't trigger a warning from Defender, then either get the installer for the Slim build, or use the Portable build.

    https://www.ccleaner.com/ccleaner/builds
      My Computers


 

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