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T
TrackieGuy
Participant
June 15, 2019
Answered

Core DLL Missing / Remcos Rat

  • June 15, 2019
  • 2 replies
  • 2493 views

Hello,

I'm running Windows 10 with all recent updates.

This evening I started getting and error that Adobe Acrobat DC failed to load Core dll.  I uninstalled and reinstalled the application.  Come to find out that my malware software is finding a remcos rat (backdoor.remcos) associated with the ACE.dll.  Not matter how many times I delete the effected file and reinstall the app, the compromised dll appears.  Any suggestions on a solution?

This topic has been closed for replies.
Correct answer kglad

uninstall everything cc including preferences, https://helpx.adobe.com/creative-cloud/help/uninstall-remove-app.html

then uninstall the cc desktop app, https://helpx.adobe.com/creative-cloud/help/uninstall-creative-cloud-desktop-app.html

clean your computer of cc files per http://www.adobe.com/support/contact/cscleanertool.html

run your antivirus and antimalware software

restart your computer (don't skip this)

reinstall the cc desktop app, https://creative.adobe.com/products/creative-cloud.

if you're unable to install the cc desktop app at this stage, use an administrator account (solution 4 here, https://helpx.adobe.com/creative-cloud/kb/creative-cloud-missing-damaged.html)

use the desktop app to install your cc programs/trials

2 replies

F
FlashG30
Participant
March 3, 2020

All,

I found out the Acrobat reader core DLL error went away when i left the two boxes on the 1 of the 3 step download checked. Since i had the Google Chrome already installed i was unchecking the install the Google Chrome and the extention. So install as is and let the downloader tell you what is already installed. Don't unckeck anything. 

kglad
Community Expert
kgladCommunity ExpertCorrect answer
Community Expert
June 15, 2019

uninstall everything cc including preferences, https://helpx.adobe.com/creative-cloud/help/uninstall-remove-app.html

then uninstall the cc desktop app, https://helpx.adobe.com/creative-cloud/help/uninstall-creative-cloud-desktop-app.html

clean your computer of cc files per http://www.adobe.com/support/contact/cscleanertool.html

run your antivirus and antimalware software

restart your computer (don't skip this)

reinstall the cc desktop app, https://creative.adobe.com/products/creative-cloud.

if you're unable to install the cc desktop app at this stage, use an administrator account (solution 4 here, https://helpx.adobe.com/creative-cloud/kb/creative-cloud-missing-damaged.html)

use the desktop app to install your cc programs/trials

    jerryk99708317
    jerryk99708317
    Participant
    June 15, 2019

    Thank you I just tried this and it worked for me. My Adobe Acrobat Pro DC puked up the ace.dll error yesterday. Not sure if this was related to Malwarebytes or not, so I disabled Malwarebytes

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