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Doc/Faq rkhunter을 통한 시스템 무결성 체킹하기

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작성자 rootman
댓글 9건 조회 15,865회 작성일 05-09-28 11:57

본문

안녕하세요.
http://www.rootman.co.kr 운영자 정찬호입니다.

rkhunter는 rootkit을 찾아 주는 유틸리티로 설치도 간단하고 보는 법도 간단합니다.
또한 중요 파일에 대한 위, 변조를 알려 주어 관리자로 하여금 약간 안도감을 주는^^ 프로그램이죠.

혹시 모르셨던 분들 한 번 써 보세요.
도움이 꼭 되시길 바라면서.

Have a good time !


1. 관련사이트
http://www.rootkit.nl/projects/rootkit_hunter.html


2. 소스 다운로드
(1) http://downloads.rootkit.nl/rkhunter-1.2.7.tar.gz



3. 설치
[[email protected] /usr/local/src]# tar xvfz rkhunter-1.2.7.tar.tar
[[email protected] /usr/local/src]# cd rkhunter-1.2.7
[[email protected] rkhunter-1.2.7]# ./installer.sh
Rootkit Hunter installer 1.2.7 (Copyright 2003-2005, Michael Boelen)
---------------
Starting installation/update

Checking /usr/local... OK
Checking file retrieval tools... /usr/bin/wget
Checking installation directories...
- Checking /usr/local/rkhunter...Created
- Checking /usr/local/rkhunter/etc...Created
- Checking /usr/local/rkhunter/bin...Created
- Checking /usr/local/rkhunter/lib/rkhunter/db...Created
- Checking /usr/local/rkhunter/lib/rkhunter/docs...Created
- Checking /usr/local/rkhunter/lib/rkhunter/scripts...Created
- Checking /usr/local/rkhunter/lib/rkhunter/tmp...Created
- Checking /usr/local/etc...Exists
- Checking /usr/local/bin...Exists
Checking system settings...
- Perl... OK
Installing files...
Installing Perl module checker... OK
Installing Database updater... OK
Installing Portscanner... OK
Installing MD5 Digest generator... OK
Installing SHA1 Digest generator... OK
Installing Directory viewer... OK
Installing Database Backdoor ports... OK
Installing Database Update mirrors... OK
Installing Database Operating Systems... OK
Installing Database Program versions... OK
Installing Database Program versions... OK
Installing Database Default file hashes... OK
Installing Database MD5 blacklisted files... OK
Installing Changelog... OK
Installing Readme and FAQ... OK
Installing Wishlist and TODO... OK
Installing RK Hunter configuration file... OK
Installing RK Hunter binary... OK
Configuration updated with installation path (/usr/local/rkhunter)

Installation ready.
See /usr/local/rkhunter/lib/rkhunter/docs for more information. Run 'rkhunter' (/usr/local/bin/rkhunter)


4. 실행 파일 복사
[[email protected] rkhunter-1.2.7]# cp rkhunter /usr/sbin/


5. 시스템 검사하기
(1) 검사 레포트 crt 출력
[[email protected] rkhunter-1.2.7]# rkhunter -c

(2) 검사 파일 저장하기
[[email protected] rkhunter-1.2.7]# rkhunter --checkall --createlogfile
....
....
---------------------------- Scan results ----------------------------
MD5
MD5 compared: 0
Incorrect MD5 checksums: 0

File scan
Scanned files: 342
Possible infected files: 0

Application scan
Vulnerable applications: 3

Scanning took 365 seconds
Scan results written to logfile (/var/log/rkhunter.log)


6. 버전 확인하기
[[email protected] rkhunter-1.2.7]# /usr/local/bin/rkhunter --versioncheck
http://www.rootkit.nl/rkhunter/rkhunter_latest.dat

Rootkit Hunter 1.2.3, copyright Michael Boelen

This version: 1.2.3
Latest version: 1.2.7
Update available


7. rkhunter 업데이트하기
[[email protected] root]# /usr/local/bin/rkhunter --update
Running updater...

Mirrorfile /usr/local/rkhunter/lib/rkhunter/db/mirrors.dat rotated
Using mirror http://www.rootkit.nl/rkhunter
[DB] Mirror file : Update available
Action: Database updated (current version: 2005033000, new version 2005050700)
[DB] MD5 hashes system binaries : Update available
Action: Database updated (current version: 2005041000, new version 2005080200)
[DB] Operating System information : Update available
Action: Database updated (current version: 2005032500, new version 2005091100)
[DB] MD5 blacklisted tools/binaries : Up to date
[DB] Known good program versions : Update available
Action: Database updated (current version: 2005040300, new version 2005071500)
[DB] Known bad program versions : Update available
Action: Database updated (current version: 2005040300, new version 2005071500)

Ready.

- 이상 -

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