Jem'Hadar fighter

Jem'Hadar attack ships (also referred to as fighters) are small attack fighters that form the bulk of the Dominion fleet.

These versatile and easy to build warships have also been known to perform the roles of patrol ships and scouts. The design has also found its way into the hands of privateers in the Alpha Quadrant. They have been nicknamed "warbugs" by some Starfleet officers (: "Determined Warrior" etc.).

Use outside the Dominion
Utilizing the knowledge he gained from his alliance with the Dominion, Khan was able to build his own fleet of attack ships. As of mid-2377, Khan had 60 ships on hand and was capable of building 3 per month

The USS and USS have also encountered Jem'Hadar attack ships controlled by unknown parties