Thanks, this is the usual post-release issue where security vendors need to update their virus definition files. It happens with every new release. Seeing only three security vendors with false-positives is actually quite good on a new release.
A bigger issue is Microsoft's SmartScreen, which depends on reputation. Windows will literally need to see a file in wide use and declared as safe by enough people to accept that it is a safe file.
mIRC users can click feedback to submit feedback to Microsoft.This new release uses Microsoft Azure Artifact Signing to sign the executable and, from what I understand, consistent use of this will contribute to SmartScreen reputation over time. So hopefully this will make future releases retain reputation.
For users that report this:
If you have recently downloaded the latest version of mIRC from the official mIRC webstite, and you are seeing a warning from a security vendor, this is usually due to a false-positive which happens when an anti-virus company updates their virus definition files without checking them properly or is slow to update them after a new release of mIRC.
The result is that the anti-virus software starts incorrectly detecting some applications or files as trojans or viruses. Unfortunately this happens all the time. You would need to contact your anti-virus software company to report the issue and to ask them for a solution. They should then correct the error in the next update of their virus definition files and should be able to tell you how to prevent their software from behaving this way in the meantime.
In addition, some anti-virus applications are more sensitive to IRC applications than others and will actively block/delete their files. You would need to add mIRC to their exclusion list to get around this. If that does not work, you would need to contact the anti-virus company for help.
You could also try uploading your mirc.exe to
https://www.virustotal.com to check it. There will usually always be a small number of security vendors that think a file has a virus/trojan, especially after a new release, but this is usually resolved by them after some time.
