Trojan:W32/Qhost.IT stops antivirus products from updating by modifying the %windir%\system32\drivers\etc\HOSTS file.
Based on the settings of your F-Secure security product, it will either move the file to the quarantine where it cannot spread or cause harm, or remove it.
This trojan modifies the HOSTS file to prevent access to antivirus related sites and services.It Creates the following file:
It creates the following registry keys as its autostart-mechanism:
It modifies the HOSTS file to prevent antivirus products from receiving updates. It points the update site to localhost. Access to the following sites is blocked:
Date Created: -
Date Last Modified: -