If the drive still mounts but gives errors, try to copy data off first. Once you use the MPTool, data recovery becomes much harder.
Run the utility to confirm your is indeed SM3265AC. sm3265ac free
The SM3265AC is a popular, budget-friendly USB 3.0 controller used in countless flash drives from brands like PNY, ADATA, Kingston (some models), and generic "no-name" drives from Amazon or eBay. It supports TLC and QLC NAND flash. If the drive still mounts but gives errors,
The good news? The bad news? Finding a clean, working version without malware is a digital treasure hunt. Kingston (some models)
Given the information provided ("sm3265ac free"), I'm going to take a guess: