I'm running a http server written in Rebol and sometimes I see that the server is woken by data like this arriving at port 80
0300002F2AE00000000000436F6F6B69653A206D737473686173683D41646D696E697374720D0A0100080003000000
In the logs I see that over two days I've seen this happen three times. Is this some type of attack?
The server is a F1 micro instance running on Google's compute cloud.