Logwatch shows that proftpd was tried to be logged into using root
0.0.0.0 (111.254.68.221[111.254.68.221]) - SECURITY VIOLATION: Root login attempted
I found:
Normally, proftpd does not allow root logins under any circumstance. If a client attempts to login as root, using the correct password, a special security message is logged:
SECURITY VIOLATION: Root login attempted
It says login as root, using the correct password
. How do I find out which password the hacker knows?