What is it???
 

i think its plasma generated by a paranormal being that has entered our world due to an imbalance in the inter-dimensional gateway that borders the known universe and beyond.

or, it could be some dirt that the wind blew on the lens.

Whatever it is , it looks like it is outside the cam and was blowing in the breeze.

It's a spider web. I've seen the spider crawling by during the day. The web only
shows up at night...

It is spider webs. I have security cameras at my house and I get this all the time... I thought it was my camera view for a sec.

It’s got to be spider web.
<O:p</O:p

With a ton of light during the day, the focus is out... With limited light at night, the cam grabs on to whatever is out there in front of it to focus on.
<O:p</O:p
<O:p</O:p
We'll be sending out spider web removal department to take care of the problem. :D