A lot of people have been reporting that AVG is reporting lot of files being infected by Trojen Horse ahiy or Trojan Horse Proxy ahiy. Although it can be a legitimate alarm but avg seem to report many legitimate programs as this Trojan Horse Proxy ahiy.
Like lot of people who are using google toolbar and AVG have reported that they are getting this warning that their google toolbar is infected by this Trojan Horse ahiy.
The False positive trojan horse ahiy is reported in these google toolbar files:
C:\Program Files\Google\Google Toolbar\Component\Google ToolbarUser_FCDD4C5F33EE805C.exe
and C:\Program Files\Google\Google Toolbar\Google ToolbarUser.exe
The Company regarding this situation on AVG forums said:
“Unfortunately, the current virus database version may detect the mentioned virus on some legitimate applications. We can confirm that it is a false alarm. We would like to inform you that the false positive will be removed in the next Definitions update. Please update your AVG and if a new Definitions update was downloaded, check whether the file is still detected.
If you need to restore deleted files from AVG Virus Vault you can do it this way:
– Open AVG user interface.
– Choose “Virus Vault” option from the “History” menu.
– Locate the file that was incorrectly removed and select it (one click).
– Click on the “Restore” button.
We are sorry for the inconvenience.
Now first thing first, update your AVG antivirus as soon as new database update arrives so that it doesn’t tag files false positive. After you have updated the antivirus, rescan the files that were previously tagged Trojan horse ahiy false positive.
It can be that the Trojan horse ahiy in question only targets that toolbar or something like that. If you scan your computer after updating AVG and it comes clean then restore these files as described.
I am sure most of you will be dumping AVG just for this very incident but that won’t resolve the issue, will it ? Every antivirus from time to time experience false positives, just recently McAfee.
Another solution to resolve this issue is to revert back the database to the previous stable version, but that’s risky as well. So I would suggest you to update your AVG antivirus and scan your computer as early as possible to be on the safe side of things.