This looks like a totally unprofessional job. Here is why:
- The task uses wscript.exe to invoke task.vbs.
- Task.vbs invokes task.bat.
- Task.bat invokes task.exe
Any half-competent programmer would use the Task Scheduler to invoke task.exe directly. I suspect that task.exe is/was malware that got deleted by your virus scanner. I would now disable the task itself.