Talk to steam support. They might be able to help you.

They are gone forever. Steam Support also won't help you.

You literally can't get it back, have you add some random strange guy to your friend list recently? such as people who ask you to vote for their team or just said they could give you something for free?

I hope this video cheers you up because you aren't getting it back. But the guy who did it surely had a laugh

https://www.youtube.com/watch?v=CbWZ5uQiXpA

引用自 TF2 veteran：

I hope this video cheers you up because you aren't getting it back. But the guy who did it surely had a laugh

https://www.youtube.com/watch?v=CbWZ5uQiXpA

I don't care btw. though, I just used it to make the sentence sound more vibrant. And in fact I find this situation of yours very hilarious.

Because if you really get hacked you need to do a lot thing to secure your account again, like reset your Mobile Token, and reset your email address, even though you can't get your thing back, but you can prevent others from selling your props again.

引用自 MANPOWER5：

Because if you really get hacked you need to do a lot thing to secure your account again, like reset your Mobile Token, and reset your email address, even though you can't get your thing back, but you can prevent others from selling your props again.

it was years ago, so i already got that ♥♥♥♥ taken care of

If the Haunted Metal Scrap got deleted rather than consumed (such as in crafting) or traded, there is a chance that Steam Support restores it, although it's not guaranteed.

If items were traded, sold or consumed instead, they are gone for good though.