Enter a clue or pattern or both:
The Clue
Some modern viruses and worms (4 letter answer)
The Answer
BOTS
Tags
Notes
The answer BOTS is so rare that it appears less than once every 2900 puzzles.
Related Clues
Droids
Internet prowlers
Some spam senders
Definition
BOT as a noun:
1. botfly larva; typically develops inside the body of a horse or sheep or human