Why have these files shown up as a threat in my Anti Virus?

[Dudester22]

I just did a full system scan with Avast Anti Virus and it picked up these files as been high risk? Why have these been picked up as a virus and high risk (Pic Below). Please advise!!

[SkateZilla]

Either they triggered a string match (ie similar file name to a virus or similar line of code), or the PDFs were infected by another virus.

 

Usually there's a More-Info Button on Virus Scanners.

 

I get so many false positives for software that I run, that I stopped letting AV Suites run un-attended.

[ShuRugal]

because Avast is a piece of shit.

 

Seriously, even resource-hogging Norton Antivirus is better than Avast (but it's also a piece of shit, so don't get it either)

[Dudester22]

So you reckon it's a false positive? I did download some other charts for DCS created by someone else, but I deleted those because they came back as high risk aswell even though were on a different HardDrive. Surly someone wouldn't make DCS charts with a virus in though would they?

[G00dnight]

yes they would these ppl will put it in anything, I use AVG free & avira free both do the biz for me and dont cost a penny (other currencies are available).

[BRooDJeRo]

Try a different AV scanner to have some more results. Turn off or uninstall your old AV products first.

 

This is a free stand alone scanner that doesn't require installation and doesn't have commercial advertisement crap. You can run it from an USB stick or local folder location if needed in Win Safe Mode when fully updated first and some extra diagnostic tools meant for the business market. Seems to work well for me. Make sure the right file size is selected in the options when the PDF's exceed 20Mb file size. There's a X32 and X64 version available. The scanner is started by double clicking CCE.exe. For scanning specific files you use the add location feature and unselect the default locations. Check the 4 boxes on the left to do an OS scan next to the PDF scan.

 

http://www.comodo.com/business-security/network-protection/cleaning_essentials.php

Edited November 16, 2013 by BRooDJeRo

[shagrat]

When in doubt it is a good idea to use an online AV scanner to cross-check.

For smaller files at least:

 

https://www.virustotal.com/de/

 

or

 

http://www.virscan.org/