受信メールのウィルスチェックプログラムであるClam AntiVirusのパターンファイルアップデート処理でWARNINGが出ていた。
どうやら新バージョンがリリースされているらしい。

# tail /var/log/clamd.log
Feb  1 23:00:22 boris freshclam[4575]: Daemon started.
Feb  1 23:00:22 boris freshclam[4575]: ClamAV update process started at Wed Feb  1 23:00:22 2006
Feb  1 23:00:22 boris freshclam[4575]: WARNING: Your ClamAV installation is OUTDATED!
Feb  1 23:00:22 boris freshclam[4575]: WARNING: Local version: 0.87 Recommended version: 0.88
Feb  1 23:00:22 boris freshclam[4575]: DON'T PANIC! Read http://www.clamav.net/faq.html
Feb  1 23:00:22 boris freshclam[4575]: main.cvd is up to date (version: 35, sigs: 41649, f-level: 6, builder: tkojm)
Feb  1 23:00:22 boris freshclam[4575]: daily.cvd is up to date (version: 1264, sigs: 2231, f-level: 7, builder: diego)
Feb  1 23:00:22 boris freshclam[4575]: WARNING: Your ClamAV installation is OUTDATED!
Feb  1 23:00:22 boris freshclam[4575]: WARNING: Current functionality level = 6, recommended = 7
Feb  1 23:00:22 boris freshclam[4575]: DON'T PANIC! Read http://www.clamav.net/faq.html

Clam AntiVirusを0.87から0.88にアップデートすればいいらしい。

# tail /var/log/clamd.log
Feb  2 00:00:22 boris freshclam[16264]: Daemon started.
Feb  2 00:00:22 boris freshclam[16264]: ClamAV update process started at Thu Feb  2 00:00:22 2006
Feb  2 00:00:22 boris freshclam[16264]: main.cvd is up to date (version: 35, sigs: 41649, f-level: 6, builder: tkojm)
Feb  2 00:00:22 boris freshclam[16264]: daily.cvd is up to date (version: 1264, sigs: 2231, f-level: 7, builder: diego)