基本的にこのサイトを参照
実行結果は自分のもの。
http://www.kaju.homeip.net/clam_antivirus.shtml

■アンチウィルスソフトのインストール
# yum -y install clamav
Setting up Install Process
Setting up Repos
dag 100% |=========================| 1.1 kB 00:00
update 100% |=========================| 951 B 00:00
base 100% |=========================| 1.1 kB 00:00
addons 100% |=========================| 951 B 00:00
extras 100% |=========================| 1.1 kB 00:00
Reading repository metadata in from local files
dag : ################################################## 2664/2664
update : ################################################## 73/73
base : ################################################## 1406/1406
extras : ################################################## 30/30
Parsing package install arguments
Resolving Dependencies

• > Populating transaction set with selected packages. Please wait.
  • > Downloading header for clamav to pack into transaction set.

clamav-0.86.2-1.2.el4.rf. 100% |=========================| 8.1 kB 00:00

• > Package clamav.i386 0:0.86.2-1.2.el4.rf set to be updated
• > Running transaction check
• > Processing Dependency: clamav-db = 0.86.2-1.2.el4.rf for package: clamav
• > Restarting Dependency Resolution with new changes.
• > Populating transaction set with selected packages. Please wait.
  • > Downloading header for clamav-db to pack into transaction set.

clamav-db-0.86.2-1.2.el4. 100% |=========================| 3.2 kB 00:00

• > Package clamav-db.i386 0:0.86.2-1.2.el4.rf set to be updated
• > Running transaction check

Dependencies Resolved
Transaction Listing:

Install: clamav.i386 0:0.86.2-1.2.el4.rf - dag

Performing the following to resolve dependencies:

Install: clamav-db.i386 0:0.86.2-1.2.el4.rf - dag

Total download size: 2.9 M
Downloading Packages:
(1/2): clamav-db-0.86.2-1 100% |=========================| 2.3 MB 01:12
(2/2): clamav-0.86.2-1.2. 100% |=========================| 620 kB 00:19
Running Transaction Test
Finished Transaction Test
Transaction Test Succeeded
Running Transaction
Installing: clamav-db 100 % done 1/2
Installing: clamav 100 % done 2/2

Installed: clamav.i386 0:0.86.2-1.2.el4.rf
Dependency Installed: clamav-db.i386 0:0.86.2-1.2.el4.rf
Complete!

■設定ファイルの変更
＊サイト参照
なぜコメントアウトするのか。

■ウィルス定義ファイル最新化
# freshclam
ClamAV update process started at Fri Jul 29 00:42:09 2005
WARNING: DNS record is older than 3 hours.
WARNING: Invalid DNS reply. Falling back to HTTP mode.
Reading CVD header (main.cvd): OK (IMS)
main.cvd is up to date (version: 33, sigs: 36102, f-level: 5, builder: tkojm)
Reading CVD header (daily.cvd): OK
Downloading daily.cvd [*]
daily.cvd updated (version: 994, sigs: 1048, f-level: 5, builder: arnaud)
Database updated (37150 signatures) from db.jp.clamav.net (IP: 218.44.253.75)

■使い方
# clamscan /home/*
Clam AntiVirusによってウィルスが検出された場合は自動的に削除されるので、管理者は特に対処する必要はありません。

# clamscan --log=/var/log/clamav.log --infected --recursive /
ハードディスク全体をフルスキャンする。

• remove を付けると検出されたファイルが削除されます。

■ウィルス定義ファイルの自動更新とウィルススキャンの自動化
＊サイト参照