A program set to start by itself
What happened
A new startup entry, scheduled task or service was created. Software installs do this too; attackers use it to come back after a restart.
How serious
Serious: deal with it today.
Steps: Windows PC
Ask the person at that PC what they were doing at that time (installing something, a link in an email, a USB stick).
Check what starts automatically: Task Manager (Ctrl+Shift+Esc) → Startup apps; Task Scheduler → Task Scheduler Library; and services.msc. Disable entries nobody recognises and note their names for your IT provider.
Run a deep scan: Windows Security → Virus & threat protection → Scan options → Microsoft Defender Antivirus (offline scan) → Scan now. The PC restarts.
How to check it’s fixed
Fixed when the deep scan finds nothing, protection is on again and Ojava shows the PC as healthy for 24 hours.
When to call your IT provider
Call your IT provider today, before using the PC again for work.