Recently spotted someone searching:
1 and 1 2 union select 0x6461726b31636f6465--
And a bunch of variations. What type of exploit is this and what does it attempt to do? I don't believe I'm at any particular risk, but it would be helpful to understand what the goal of the attacker is here so I can be sure since I've never seen this before.
Also, it's worth noting that searching "0x6461726b31636f6465" on google yields a ton of results. Why would google be crawling and indexing a search term that clearly appears to be a vulnerability exploit of some sort?