I just started using Ubuntu 18.04.1 version and two days ago , I received an email from trusted source with 2 attachments and I downloaded those files on my desktop, files were encrypted and were asking me to sign in with my passwords to open, I tried to open those files as well. Later on I found out that sender's server was hacked and that email was from hackers.
Then I installed ClamTK anti virus and run scan today and found out below results. These are just a small sample, I have hundreds of these output in my terminal. What is this? is this normal or its a virus? many thanks
LibClamAV Error: fmap_readpage: pread error: Input/output error
LibClamAV Warning: fmap_readpage: pread fail: asked for 4087 bytes @ offset 9, got 0
LibClamAV Warning: fmap_readpage: pread fail: asked for 4094 bytes @ offset 2, got 0
LibClamAV Warning: fmap_readpage: pread fail: asked for 4087 bytes @ offset 9, got 0
LibClamAV Warning: fmap_readpage: pread fail: asked for 4091 bytes @ offset 5, got 0
LibClamAV Warning: fmap_readpage: pread fail: asked for 4088 bytes @ offset 8, got 0
LibClamAV Warning: fmap_readpage: pread fail: asked for 4075 bytes @ offset 21, got 0
LibClamAV Warning: fmap_readpage: pread fail: asked for 4074 bytes @ offset 22, got 0
LibClamAV Warning: fmap_readpage: pread fail: asked for 4094 bytes @ offset 2, got 0
LibClamAV Warning: fmap_readpage: pread fail: asked for 4095 bytes @ offset 1, got 0
LibClamAV Warning: fmap_readpage: pread fail: asked for 4095 bytes @ offset 1, got 0
LibClamAV Warning: fmap_readpage: pread fail: asked for 4072 bytes @ offset 24, got 0
LibClamAV Warning: fmap_readpage: pread fail: asked for 4093 bytes @ offset 3, got 0
LibClamAV Warning: fmap_readpage: pread fail: asked for 4089 bytes @ offset 7, got 0
LibClamAV Warning: fmap_readpage: pread fail: asked for 4091 bytes @ offset 5, got 0
----------- SCAN SUMMARY -----------
Known viruses: 6762421
Engine version: 0.100.2
Scanned directories: 59238
Scanned files: 337081
Infected files: 0
Total errors: 23210
Data scanned: 9843.74 MB
Data read: 15217.11 MB (ratio 0.65:1)
Time: 1794.555 sec (29 m 54 s)
clamav
to scan windows computers on occasion, but don't recall seeing your error.