rkhunter를 돌린 결과..

* Filesystem checks
   Checking /dev for suspicious files...                      [ OK ]
   Scanning for hidden files...                               [ Warning! ]
---------------
 /etc/.pwd.lock
/etc/.java
---------------
Please inspect:  /etc/.java (directory)

[Press <ENTER> to continue]

Application advisories
* Application scan
   Checking Apache2 modules ...                               [ Not found ]
   Checking Apache configuration ...                          [ OK ]

* Application version scan
   - GnuPG 1.2.1                                              [ Old or patched version ]
   - OpenSSL 0.9.7a                                           [ Old or patched version ]
   - Procmail MTA 3.22                                        [ OK ]
   - ProFTPd 1.2.10                                           [ OK ]
   - OpenSSH 3.5p1                                            [ Old or patched version ]

Security advisories
* Check: Groups and Accounts
   Searching for /etc/passwd...                               [ Found ]
   Checking users with UID '0' (root)...                      [ Warning! (some users in root group) ]
    info: adri4n:0

위에 빨간 글씨가 나왔습니다...해킹당한건가요?? 전 완전초보여서 .....