--- a/virus.rst	Tue Jun 09 16:54:11 2009 +0300
+++ b/virus.rst	Tue Jun 09 16:58:04 2009 +0300
@@ -17,3 +17,13 @@
 
   $ sudo chkrootkit
 ...
+
+* Virus.
+
+** Debian.
+
+*** ClamAV.
+
+anti-virus utility for Unix.
+
+  $ sudo apt-get install clamav