These utilities are (except for sendoscf) Autohotkey scripts that are "compiled" with the Autohotkey ahk2exe tools. The script and an Autohotkey runtime are bundled into an executable that I publish. So we are at the mercy of whatever else is going on in the world with Autohotkey scripts and malware detection's, false positives or not.
This can manifest as Windows Defender deleting your download, and giving a notification that you may not see depending on your settings.
There is no malware in these programs. If you get a detection alert, please let me know what security tool flagged it, and the version of it's virus definition file. Then I can potentially request a review by the security tool provider. Thanks.