Jump to content
mbmo

100% of the CPU used. Damage?

Recommended Posts

When Malwarebytes scans it uses 100% of the CPU. Could that cause damage if done too often (such as on a weekly or monthly basis)?

Share this post


Link to post
Share on other sites

***This is an automated reply***

Hi,

Thanks for posting in the Malwarebytes 3 Help forum.

 

If you are having technical issues with our Windows product, please do the following: 

Spoiler

If you haven't done so already, please run these two tools and then attach the logs in your next reply:

NOTE: The tools and the information obtained is safe and not harmful to your privacy or your computer, please allow the programs to run if blocked by your system.

  • Farbar Recovery Scan Tool (FRST)
    1. Download FRST and save it to your desktop
      Note: You need to run the version compatible with your system. You can check here if you're not sure if your computer is 32-bit or 64-bit
    2. Double-click to run FRST and when the tool opens click "Yes" to the disclaimer
    3. Press the "Scan" button
    4. This will produce two files in the same location (directory) as FRST: FRST.txt and Addition.txt
      • Leave the log files in the current location, they will be automatically collected by mb-check once you complete the next set of instructions
  • MB-Check
    1. Download MB-Check and save to your desktop
    2. Double-click to run MB-Check and within a few second the command window will open, press "Enter" to accept the EULA then click "OK" 
    3. This will produce one log file on your desktop: mb-check-results.zip
      • This file will include the FRST logs generated from the previous set of instructions
      • Attach this file to your forum post by clicking on the "Drag files here to attach, or choose files..." or simply drag the file to the attachment area

One of our experts will be able to assist you shortly.

 

If you are having licensing issues, please do the following: 

Spoiler

For any of these issues:

  • Renewals
  • Refunds (including double billing)
  • Cancellations
  • Update Billing Info
  • Multiple Transactions
  • Consumer Purchases
  • Transaction Receipt

Please contact our support team at https://support.malwarebytes.com/community/consumer/pages/contact-us to get help

If you need help looking up your license details, please head here: https://support.malwarebytes.com/docs/DOC-1264 

 

Thanks in advance for your patience.

-The Malwarebytes Forum Team

Share this post


Link to post
Share on other sites

Hello and Welcome!

The scheduled threat scans happen pretty quickly so I would say no... If you have the Premium version with all active protections turned on, I would only schedule a weekly Threat scan.  Full scans would take a lot more time (could be hours depending on how much data you have) which would put undue stress on your system IMO.

Share this post


Link to post
Share on other sites
6 minutes ago, Firefox said:

The scheduled threat scans happen pretty quickly so I would say no...

Also, scheduled scans (paid version)run at a lower priority so the CPU usage does not go to 100%. 

Share this post


Link to post
Share on other sites

I'm referring to manual full system scans which on my computer take around a half hour (or less). I have the free version of Malwarebytes.

Share this post


Link to post
Share on other sites

Manual full scans are really not needed, all you need is a Threat Scan... That should cover all the areas that malware likes to live in...

Share this post


Link to post
Share on other sites
12 minutes ago, mbmo said:

I'm referring to manual full system scans which on my computer take around a half hour (or less). I have the free version of Malwarebytes.

There really is no need to perform a FULL or CUSTOM SCAN with Malwarebytes Anti-Malware. Why?

Malwarebytes is designed to remove malware effectively with a THREAT SCAN (formerly QUICK SCAN) which checks memory, looks at the most prevalent places and known launch points for active malware infections. The THREAT SCAN also detects any running malicious files regardless of its location so even if the malware is running from a location not checked by the file system portion of the scan, the THREAT SCAN would still detect it. This check includes not only running processes, but also loaded modules such as .DLLs injected into other processes. Both scans use heuristics that bypasses polymorphic blackhat packers & encryption, MD5, check memory (loaded .exes and .dlls), unique strings, autostart load points and hotspots (everywhere current malware is known to load from) and multiple other malware checks which are not discussed in public to safeguard the program from malware writers who would use that information for nefarious purposes.

A Full Scan is generally only recommended for heavily infected systems...showing obvious indications (signs of infection and malware symptoms) that something is wrong.

You can reduce the CPU priority see the below screenshot. (scans will take longer) your choice.

 

 

scan speed.png

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...

Important Information

This site uses cookies - We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.