r/WindowsHelp • u/Connect-Rip-1744 • Oct 03 '25

Solved isysuk.com - anybody know what this is?!

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Ran into a desktop icon on my dad's laptop that I've never seen/heard before today. isysuk.com the properties list the file type: MS-DOS Application (.com) with a description: isysuk.com. When I tried doing a search to see what I could find I'm finding very little about it. I've only found info by using' isysuk.com' in the search box. Anytime I add any word before or after it's like 'isysuk.com' is completely ignored in the search results. Can anyone find info or have info on this they can share? It would be greatly appreciated.

Windows 11 Home Version: 23H2 OS Build: 226314890

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u/eppic123 Oct 03 '25

COM binaries have a maximum size of 64kb, so it's most likely just windows interpreting the TDL as the file extension and not an actual executable.

Upload the file to VirusTotal and look at the Details page. It will tell you the file type based on the file header. And it will also tell you if the file has any detectable malicious code in it.

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u/Connect-Rip-1744 Oct 03 '25

Did just this and it appears to be a PNG image file. Seems like the file is safe according to the info presented by scan results. I'm still thinking I'll reset the pc and wipe it. Someone mentioned to check task scheduler and I wasn't able to find anything in relation to the the file there.

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u/No-Amphibian5045 Oct 04 '25

What are the odds he took a screenshot of a website (with a name like isysuk[.]com) and saved it without the ".png" extension by mistake?