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How long does a GMER scan normally take?


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#1 honokeman

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Posted 27 May 2010 - 08:36 AM

When I performed the GMER scan of my system (in safemode), the scan took over 24 hours. Is this normal?
I have 149 GBs of stuff on my computer.
A McAfee Scan takes about 2 hours.

Thanks,
~Honokeman

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#2 Blade

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Posted 27 May 2010 - 10:21 AM

GMER scans vary highly in the amount of time they take to run. While a scan time as long as yours is uncommon, it's not unheard of. Often you can reduce the amount of time the scan takes by ensuring that only your system drive (usually C:\ ) is being scanned, and by unchecking "IAT/EAT" in the scan options.

Hope that helps,

~Blade

Edited by Blade Zephon, 27 May 2010 - 10:23 AM.

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#3 quietman7

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Posted 27 May 2010 - 12:34 PM

Generally speaking, the speed and ability to complete an anti-virus or anti-malware scan depends on a variety of factors.
  • The program itself and how its scanning engine is designed to scan: using a signature database vs heuristic scanning or a combination of both.
  • Options to scan for spyware, adware, riskware and potentially unwanted programs (PUPS).
  • Options to scan memory, boot sectors, registry and alternate data streams (ADS).
  • Type of scan performed: Deep, Quick or Custom scanning.
  • What action has to be performed when malware is detected.
  • A computer's hard drive size.
  • Disk used capacity (number of files to include temporary files) that have to be scanned.
  • Types of files (.exe, .dll, .sys, .cab, archived, compressed, packed, email, etc) that are scanned.
  • Whether external drives are included in the scan.
  • Competition for and utilization of system resources by the scanner.
  • Other running processes and programs in the background.
  • Interference from malware.
  • Interference from the user.
To speed up your scans, uninstall unnecessary programs, clean out the temporary files or use ATF Cleaner first, temporarily disable any other real-time protection tools, close all open programs and do not use the computer during the scan.

Note: It is not unusual for an anti-virus or anti-malware scanner to be suspicious of some compressed, archived, .cab and packed files because they have difficulty reading what is inside them. These kind of files often trigger alerts by security software using heuristic detection because they are resistant to scanning (difficult to read). This resistance may also result in some scanners to stall (hang) on these particular types of files. Certain files in the System Volume Information Folder like the Tracking.log (created by the Distributed Link Tracking Service to store maintenance information) have also been reported as a source causing some scanners to hang.

As for GMER, in addition to what Blade Zephon recommends, make sure Show All is unchecked. In some case you may also need to uncheck Devices and Sections along with the other items noted but we usually recommend that when GMER will not run or keeps crashing.
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#4 honokeman

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Posted 28 May 2010 - 10:01 AM

Thank you both. This is very helpful.

~Honokeman

#5 quietman7

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Posted 28 May 2010 - 03:30 PM

You're welcome on behalf of the Bleeping Computer community.
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#6 Layback Bear

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Posted 29 May 2010 - 10:07 AM

:thumbsup: honokeman. Thank you for your trust in B/C for help.




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