'hpPostProcessing.bundle' malware?

Today I was working on my MacBook Pro and I wanted to print a document on an HP printer. When I pressed the 'print' button, Gatekeeper told me the following proces/application is malware and does harm to my Mac: 'hpPostProcessing.bundle'.


Normally I never have this issue when I want to print anything on the printer that I used today. Could anyone tell me if I need to assume that this process/application is really malware, or that I can assume that it is a 'false positive'?


Thanks in advance.

Posted on Oct 23, 2020 1:43 AM

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Question marked as Top-ranking reply

Posted on Oct 24, 2020 9:59 AM

User ewayte found the main reason. It's part of the link he supplied:


From sources familiar with the matter that HP Inc asked Apple to revoke its printer driver code-signing certificates. It appears this request backfired as it left users unable to print. A HP Inc spokesperson told us on Friday night:


We unintentionally revoked credentials on some older versions of Mac drivers. This caused a temporary disruption for those customers and we are working with Apple to restore the drivers. In the meantime, we recommend users experiencing this problem to uninstall the HP driver and use the native AirPrint driver to print to their printer.

90 replies

Oct 25, 2020 6:40 AM in response to Nilla-777

I too was hit with the cluster 'F" trying to print something yesterday. After reading the forums I pulled out my old white MacBook running Snow Leopard, 10.6.8. I was able to print from it with out any issues. So I enabled printer sharing on the MacBook, deleted the existing printers on each Mac and added the new shared printer. We can now print from any Mac on the network.


Since the latest updated drives linked here;


ftp://ftp.hp.com/pub/softlib/software12/HP_Quick_Start/osx/Installations/Essentials/hp-printer-essentials-S-5_14_8_4.pkg


Still gives errors on some of our Macs running Catalina, if you are lucky enough to have a Mac on older OS it may be easier to support.


I can only see this getting worse for older printers going forward.


Good Luck!

Tim AKA GadgetBear


Oct 23, 2020 11:22 AM in response to Nilla-777

Same issue. Following several suggestions here (thanks), tried re-installing 5.1 from HP website with same results. Then installed generic drivers through Preferences. I found the PCL version (which had additional options, such as Layout, over PS) works best (AirPrint not an option for me) for the time being. However, it only prints grayscale and not color. Will probably call HP, so will share any more info.

Oct 23, 2020 8:39 PM in response to orchardPhd

orchardPhd Said:

"'hpPostProcessing.bundle' malware?: Keep seeing 'HPDeviceMonitoring.framework' will damage your computer - can't close it, do I try to trash it? Is it malware?"

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Removing This:

Just what is HPDeviceMonitoring.framework, and where is it located? Google this, it appears to be Malware.


Scan with Malwarebytes for Mac:

Scan for Malware:

Start with running a scan for malware, using Malwarebytes for Mac and remove what is found. Perhaps something was installed that made this occur. Remove what is found from the quarantine. Malwarebytes is made by longtime users of these forums, and is the only security software safe to use on a Mac, as it does not get in the way. So, once removed from the quarantine, uninstall Malwarebytes, if desired.

Downloads:

  1. Malwarebytes Anti-Malware for Mac
  2. Malwarebytes Uninstaller


If a Scan Does Not Work, Try this:

  • Create New Administrator User

Try creating a new Administrator user, and scanning with Malwarebytes for Mac.


  • Boot in Safe Mode:

You may need to boot into Safe Mode [Hold Down the Shift Key upon boot]. Once at the login screen, release shift. See if it now can be scanned for and then removed. In Safe Mode, only necessary items load (i.e. the caches), and new preferences are set aside.

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

'hpPostProcessing.bundle' malware?

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