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Malwarebytes Full Scan Duration?


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I just ran a Full Scan (including every scan feature) on my PC with Malwarebytes and it took over 5 hours, which sounds like quite a long time. Total File size 1.3TB split on 2 SSD's and 1HDD, with around scanned 630.000 files. I'd like to ask if this kind of performance is fine and expected. The time spend on scanning sounds like a lot of time but then again, 1.3TB of files and 630.000 files scanned..

Core i5-9600, 32Gb RAM, Windows 10. PC was mostly idle most of the time, with only a video stream on screen.

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1 hour ago, dragothica said:

I just ran a Full Scan (including every scan feature)

A full scan is not needed nor recommended. Also you should not enable rootkit scan or expert system algorithms. Enabling those extra features will slow down any scan and produce false positives.

Malwarebytes is not designed to function like normal AV scanners and uses a new kind of scan engine that relies mostly on heuristics detection techniques rather than traditional threat signatures.  Malwarebytes is also designed to look in all the locations where malware is known to install itself/hide, so a full or custom scan shouldn't be necessary, especially on any sort of frequent basis (like daily), especially since the default Threat Scan/Quick Scan checks all loading points/startup locations, the registry, all running processes and threads in memory, along with all system folders, program folders and data folders as well as any installed browsers, caches and temp locations.  This also means that if a threat were active from a non-standard location, because Malwarebytes checks all threads and processes in memory, it should still be detected.  The only threat it *might* miss would be a dormant/inactive threat that is not actively running/installed on a secondary drive, however if the threat were executed then Malwarebytes should detect it.  Additionally, whenever a new location is discovered to be used by malware the Malwarebytes Research team adds that location dynamically to the outgoing database updates so the locations that are checked by the default Threat/Quick Scan in Malwarebytes can be changed on the fly by Research without requiring any engine or program version updates/upgrades.

If you need a flat file scanner to check archived data/drives, I would recommend using Windows Defender that ships with Windows 8/8.1 and Windows 10. 

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