Windows Ver 20H2 Backup Problems

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Please help if possible with the following issue which although it probably has a simple solution nevertheless has me at my wits end.
My most recent regular backup (through Backup and Restore(Windows 7) was not successful and when it completed the following message appeared:
“Check your backup, the last backup did not complete successfully”
Operation did not complete successfully because the file contains a virus or potentially unwanted software.
Error Code 0x800700E1
I therefore then proceeded to run a full virus scan through Windows Defender which reported the following:
Remediation Incomplete                     Severe
Detected Trojan: Win32/Ymacco.AB59
Status: Failed
This threat or app might not be completely remediated.
This program is dangerous and executes commands from an attacker.
Affected Items:
file:\Device\HarddiskVolumeShadowCopy22\Users\Home\Documents\Computer\
Applications\Downloads\NirLauncher\NirSoft\dialupass.exe

I have fun another full Defender scan with the same results as well as scans with Microsoft Security Scanner and Trend Micro Housecall both of which indicated that there were no infected files.
A further backup attempt unfortunately failed again with the same warning.
I guess my main problem now is really that I cannot complete a successful backup as I have been able to do on a regular basis in the past due to the dangerous file(s) warning.
Any suggestions as to my next course of action would be very much appreciated.
Please let me know if more information is needed to give an answer as I’m not really a tech wiz so I imagine more might be needed.

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That file is a password extractor utility from Nirsoft.

Unfortunately, Microsoft deems password extractor / license key finder utilities to be malware, even though they are not.

Given you are never likely to need to recover a dialup password, I suggest you remove the file to stop the false positive.

On the issue of the failed backup, why would you want a backup to fail because of malware, surely the backup is the most important bit and the malware can be tidied up afterwards?

Alternatively, use one of the free 3rd party backup utilities. These don’t stop the backup because you might have malware.

cheers, Paul

1 user thanked author for this post.

catter

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Thanks Paul; looks like my best course in this case is to remove this file.

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And change backup utilities.

Zig

 

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Deleted file Microsoft didn’t like and all good now; will look at 3rd party backup utilities to avoid these situations.

catter

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Post your possibilities here. Plenty of users here can advise on suitability.

cheers, Paul

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Catter,

IMHO, you’re looking for something that does:

a.) Automated scheduled backups

b.) Differential backups

c.) Notification of a backup’s success or failure.

d.) Automatic “checking” of backup might be a good thing, also.

Zig

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Thanks Paul and Zig for your solutions to my problem.

catter

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