Installation was blocked with an error message regarding lack of permission and the installer disappeared.
Found that the anti-virus security application [Kaspersky] claims to have detected an embedded Trojan virus:
Event: Object deleted
User: NT AUTHORITY\SYSTEM
User type: System user
Component: Virus Scan
Result: Deleted
Result description: Deleted
Type: Trojan
Name: VHO:Trojan.Win32.Convagent.gen
The Julia 1.12.7 installer julia-1.12.7-win64.exe was subsequently deleted by the anti-virus application.
As a user since Julia 1.0, this is the first time such an incident has occurred.
I checked my Windows installation of Julia 1.12.7. I installed it via the Microsoft Store/Juliaup, rather than the standalone julia-1.12.7-win64.exe installer mentioned here.
The Julia runtime at ~/.julia/juliaup/julia-1.12.7+0.x64.w64.mingw32/bin/julia.exe has a valid Authenticode signature from JuliaHub, Inc. A targeted Microsoft Defender scan of that runtime directory returned no detection.
So I have the same Julia release version, but not the same standalone installer binary that Kaspersky flagged. This looks consistent with a possible false positive on that installer, though the Julia project or Kaspersky would need to confirm that definitively.
A quick search for this shows a lot of false positives, so perhaps this is a bad heuristic. I would engage Kaspersky’s support or perhaps consider another AV vendor.