I downloaded the Avast Setup file from the Avast.com website for my newly upgraded Win 10 machine machine yesterday. In Microsoft Edge, it was showing corrupt or invalid signature after the download (~4.8 MB). So I downloaded it via Chrome, which gave no errors but a much smaller file size (31KB). But just to be sure (because of the discrepancy in file size) I did a check on VirusTotal. and it showed about 6 antiviruses showing Trojan or Malware, but only in the smaller file downloaded via Chrome (attaching screenshot at this link: https://www.dropbox.com/s/49vn553w5ymhxng/VirusTotalAvast.jpg?dl=0).
What does this mean? Does this mean that the Avast.com website has been hacked or something? Why the two different file sizes? Or are Virus Total analysis showing false positives? I have Malware Bytes Anti Malware installed on my PC and it showed no malware. Windows Defender shows no threats. So, I'm confused now. I need to install Avast, as (alongwith virus protection) it gives real-time protection from malware in the free version (and I don't trust Windows Defender for protection), but I'm scared to install it from either of these setup files. What should I do?
Edited by nparab, 22 January 2016 - 05:10 AM.