Trojan.MSIL_Heur

[gitntel]

Is your software is making for stealing or distributing trojans.

source

[gregstein]

Hello,

Absolutely not! The is-08096.tmp pattern is the known Inno Setup self-extraction mechanism, not injection:
https://www.virustotal.com/gui/file/35db40871b886b089c25141e5aef1af25909274f0588aee70634e5d7a935ef47/behavior

Check "Files dropped".

Inno Setup well-known for it and AoE2Tools is an open source app, you can use tools like dnspy to investigate further.