Why am I receiving 'Social engineering content detected' emails from Google?

We just received three emails from Google notifying us that “Social engineering content detected” on our site. The URLs listed are not any pages that exist on the site as far as I can tell. They look to have some kind of encrypted payload. Here’s a deconstructed version of the “compromised” page:

URL: http://uglybaby[.]shop/_t/c/A1020005-16D6C7017C8987D0-B13CD29E

query string: ?l=AAA1pDCLsk5tSwQuqBQThuIWX3yhh1LqmV6avJjef7XGs2k0SEYYeZp5MLAXIhjnBA5Fid6oK7Q0SWvp2Cnq4OndqyBg6NyA+mJFsxOX4i5GzfdOoLjdleXWhlcQkEu2N+ymbrKW0IjrxDVk0QVfWSAfGSaDQzVpcwQm5LoKrXUAjZeupVnuiOtD6qJu1dX1RFhKZhgLO6mIdYb9JIdh9CtOwHbkQ+grSXKASXM=&c=AACoge9+dZL0rhevwITTbguIVujmIGAghBNHtzrSPlw3G2vpFTe1C9CeI9uQ6zShTgp9ZCgttRHpUlZ6/gaAGrhlI2WpkiuWIT4Drx2576adTGJ0+umLKuvroiDzd/Mn46q4+Bk25sNxSlbFeBvE8ipxyyXJRsgaGHSt46s1lAMcBKhCqBsAPoswHZ2tNEDzBBhVb8f/TdzyJwVM55pj4AAMrBn2bkB+0efFIt0Ji9mtFgPP8qUS2nUwJ9ekkPQvkCQu/ygQb8nQrdPGBA2T/lYhi4/O0/HKkq1jM++dXXSAzl+IiKGCZRoV2HKYVHZkJEinYkMipkO9W1+8hDs2jfBJ4wOAHQh/YqV2L0aX9zavO72ZoxX/OTot19PoS/f1DLLZxD4E95ULIyzEGSb7jLUw4i2BWv6iwxWgeCcmt1ZFBCiNRdPu/HBTq1lwQpMPRG5WD33xlDAvnxW3LNanrC19NTS7/vzCtmLL9g==

I have gone to the URLs but they only redirect back to home page but with https instead of http.

We don’t run ads. We do have user reviews but those are curated. I can’t think of how malicious content could have gotten on the site.

Does anyone have any experience with this? I’ve dealt with cleaning up PHP sites but I don’t know where to start with Shopify.

Thanks!

Yes we have just received the same. A bit hard to know where to start!

So far, I haven’t heard any word back from Shopify. Would you mind telling me what Apps you have installed on your site? I’m curious to see what we might both have in common. If you search via Google for “_t/c/A1020005” you can see two other sites that seem to have the same problem. Both look like they could be Shopify sites. I’m reaching out them to see if they’ll let me know what Apps they have as well.

Fingers crossed!