ahsans's profile
Prodigy

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247 Messages

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5.3K Points

Wed, Sep 15, 2021 8:14 AM

FullScanResults

Hi everyone!

I should have asked this a long time ago, but keep on forgetting it :). Anyways (see attachment). When the full scan has been done and the total number of files scanned, why does it not include those "files already marked safe within the last 24 hours". What does Trend Micro do with those files that are marked safe, does it do any sort of analysis, or monitoring, does it check for another 24 hours, or etc? What if those files gets modified by Windows OS or by malware? What would Trend Micro do then? Is is something that Trend Micro can do or improve on in the next version of Trend Micro?

Responses

bvasilev

 Superstar

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181 Messages

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7.2K Points

10 d ago

If these files change for whatever reason, their SHA256 will be completely different and they will be rescanned. 

The exclusion of safe files provide better performance vs constantly scanning everything. 

Brand User

Prodigy

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166 Messages

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3.1K Points

10 d ago

Hi, ahsans

Welcome to Trend Micro Home Users Community 

The reason why Full Scan excluded those files to be scanned is that they were already scanned within the last 24 hours and marked as files that are safe to be in your computer.

It is excluded by the Full Scan to shorten the scan time period and for the scan performance to be at its best.

In case those files that are marked as safe is modified it will be immediately removed from the group and will be classified after rescanning

In case you need more help, please let us know immediately.

Regards
TM_Kar

ahsans

Prodigy

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247 Messages

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5.3K Points

9 d ago

Thanks everyone for your comments! @saccharine_ching based on what you wrote it seems like I know what you are talking about. This same feature was also on Norton (when I used Norton antivirus) it will do a full system scan first to know which files are safe and which ones are not. Next time you do a full system scan it will not scan those files which are deemed as safe. They have a feature called Norton safe files or something along those lines.

bvasilev

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181 Messages

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7.2K Points

@ahsans 

It's called Norton Insight alongside caching and other techniques. They can be found in any product, not just Norton.

ahsans

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247 Messages

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5.3K Points

Oh! I didn't know that. Thanks for that :)

Brand User
tm_kree

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244 Messages

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7.8K Points

@bvasilev thanks for always being there.

@@ahsans keep on posting your questions and ideas, we'd love to hear from you.