У меня установлены
~/temp/rar3$ dpkg -l *clam*
ii clamav 0.97.5+dfsg-6ubuntu i386 anti-virus utility for Unix - command-line interface
ii clamav-base 0.97.5+dfsg-6ubuntu all anti-virus utility for Unix - base package
ii clamav-freshclam 0.97.5+dfsg-6ubuntu i386 anti-virus utility for Unix - virus database update utility
ii clamav-unofficial-sigs 3.7.1-3 all update script for 3rd-party clamav signatures
ii clamtk 4.41-1 all graphical front-end for ClamAV
ii libclamav6 0.97.5+dfsg-6ubuntu i386 anti-virus utility for Unix - library
ii libclamunrar6 0.96.4-1 i386 anti-virus utility for Unix - unrar support
ii nautilus-clamscan 0.2.2-2.1 all Antivirus scanning for Nautilus
ii python-clamav 0.4.1-7 all Python bindings to ClamAV - transitional package
ii python-pyclamav 0.4.1-7 i386 Python bindings to ClamAV
при проверке вроде идёт распаковка
~/temp/rar3$ clamscan `pwd`
/home/vasilisc/temp/rar3/5отдел.rar: OK
----------- SCAN SUMMARY -----------
Known viruses: 1300791
Engine version: 0.97.5
Scanned directories: 1
Scanned files: 1
Infected files: 0
Data scanned: 0.06 MB
Data read: 0.00 MB (ratio 15.00:1)
Time: 3.567 sec (0 m 3 s)
~/temp/rar3$ unrar v 5отдел.rar
UNRAR 4.10 freeware Copyright (c) 1993-2012 Alexander Roshal
Archive 5отдел.rar
Pathname/Comment
Size Packed Ratio Date Time Attr CRC Meth Ver
-------------------------------------------------------------------------------
5отдел.doc
29184 7275 24% 27-03-12 11:24 .....A. C8B4520B m5b 2.9
-------------------------------------------------------------------------------
1 29184 7275 24%