bitcoinminer.sx

Hello,

Probably good to know path/destination of this item.

Then possible potential steps like:

--> to remove manually this file or 'container with this file'; if it not a critical file;

--> maybe to re-check system/browsers about addons-extension-applications as potential src for this file.

--> re-check if any suspicious websites 'in use' (kind of src for this item);

Generally, most likely it can be under cache of browser (or temporary files); Maybe not possible to remove/quarantine it - because file is locked by processes; or only temporary item (and removed already). But can be different points (good to know your OS/platform).

F-Secure description for this detection (?!):

https://www.f-secure.com/sw-desc/application_bitcoinminer.shtml

Thanks!

Good!

Possible to be careful some days (as doublecheck) - if it was not clear about 'why this item was under system'.

Also maybe possible to run some well-known on-demand scanners by well-known companies. As Malwarebytes do provide some tools; or HitmanPro with abilities to run scan (as trial-time or one-time scan).  But good to be sure about all of this steps.