Web log analysis
The Internet always leaves a trail, and web log analysis is always inevitable.
Here are the collected regularities. If you find the relevant access in the log, and it is 200, you should pay attention.
SQL injection *
(\ w+)'| (\ w+)% 20and%20 (\ S+) | (\ w+)% 20or%20 (\ S+) | (\ w+) = (\ d+)-(\ d+) | (\ d+) > (\ d+) | (\ d+)