What the hell, this is fearmongering, guys.
Yeah but your intention to get rid of it is much stronger.
It'd be one thing if you were ignorant and curious and brought it into your home out of fascination...
If you stomp on it with your heel, pick it up, and throw it away – cleanse yourself if you're feeling extra paranoid – then you'll be completely fine.
You on some weak shit if you think some pansy-ass bundle of sticks weakling hex that wasn't even targeted towards you is going to actually be strong enough to affect you in a capacity that the most basic and mundane cleansing couldn't fix.
I agree with
@SkullTraill , if you feel like you need something to do curse reversal then I recommend this:
Following is copied from second chapter of True Magic by Draja, the initial 2-3 pages of the chapter goes into why a person might not be cursed. Other than that, I found these spells to be useful and doable for most people I think. Definitely give it a try if you feel curse. Reversing a Spell...
wizardforums.com
Just do the curse reversal and if there's any "sign" then you get a confirmation that something was there, and if there's no "sign" then there's no harm down. If you feel personally afraid/anxious about it(I would be if I saw someone dropping anything weird looking around my house) , then just set up a witch bottle in your house yard or around it, do the reversal, cleansing, etc.
Don't hold it to your own heart too much and just be procedural about it. If someone was already attacking you and they were an expert or a professional, then they wouldn't want to be so high-key or obvious about it.
if you still feel some ickiness from it and you want someone to do it for you then there are people around who can do it as commission based work, but these spell reversal I linked are so easy that figuring out the curse and stressing about where it come from or identify it is a bit...unnecessary?
It's like asking if the poop infront of your door was from a guy, a dog, or a cat

better just get rid of it lol