+ 0 Votes Your firewall? Toivo Talikka 7 years ago Perhaps the message did not come from your firewall. It should have come from your anti-virus application. Maybe by the time you went and had a look at the folder, the infected files had already been removed by your anti-virus application. Here is a link to pestpatrol.com's instructions how to remove the virus manually: http://www.pestpatrol.com/zks/pestinfo/h/hacktool_win32_vb.asp + 0 Votes My firewall's anti-virus alert flores_dariusf 7 years ago The alert came from my firewall, it also has an anti-virus feature. I'm using ZoneAlarm Security Suite. It is shown in the log/alert file that the quarantine failed and file repair failed. I did what was said on the link you gave but I could'nt find the files that must be deleted. what is hacktool.win32.vb.gz? Will it damage my system and how?