OS: Win 7 x64
Bitcoin core: 0.9.1

While running bitcoind.exe --reindex:

c:\Program Files\Bitcoin\daemon>bitcoind.exe --reindex
Error: System error: Database I/O error

Symantec Anti Virus detected Silly.218 in chainstate\052878.sst directory (other names under which the malware is known: Virus.DOS.Dutch_Tiny.163.a (Kaspersky), Silly.218 (Symantec), Tiny-Family #3 (Avira)). Hash of the pattern detected: E272F4FF4AD99D1C48C4888990893FC6193DB1CB9849C69B1710069BBD047E0D

As the file was automatically quarantined and deleted (I can't change SAV default settings), that crashed bitcoind and corrupted the bitcoin DB.

Internet search on this yielded no results. This looks like a false positive.