4-LOM (Earth-2042)

"While most LOM units only needed an old-fashioned reboot when they went bad, 4-LOM took advantage of the glitch and overrode his core programming to become the galaxy's second-most-successful droid bounty hunter. This cold and calculating killer was usually found on missions alongside his organic companion, Zuckuss, a member of one of the insectoid species 4-LOM was built to resemble."

- R0-GR

4-LOM is an ambitious LOM-series protocol droid who overrode his programming and became a galactic thief and later a bounty hunter. He often worked together with Gand findsman Zuckuss. Following the Battle of Hoth, both 4-LOM and Zuckuss were hired by the Sith Lord Darth Vader to capture Han Solo.

Source

 * https://starwars.fandom.com/wiki/4-LOM