The current NppPluginTemplate.dll from pluginTemplate.v4.4.bin.x64.zip in the latest Plugin Template for Notepad++ v4.4 release is falsely being flagged as malicious by 21 AV engines. This causes AV alarms for Notepad++ if the plugin template is installed.
https://www.virustotal.com/gui/file/9f8cbb70d655e691cfacb9377096bb88446af7cfbffe02c533c9c5cf1ae3e594/detection
I recommend submitting the binaries for Microsoft and Bitdefender to remove the false positive, as those are the two most popular AV solutions used. As I am not a N++ developer, I am unable to submit samples for analysis and false positive.
Link to submit a sample to Microsoft:
https://www.microsoft.com/en-us/wdsi/filesubmission
Link to submit a sample to Bitdefender:
https://www.bitdefender.co.uk/consumer/support/answer/88563/