Troj/HkCert-A is classified as a nasty Trojan horse which directly attack on system files and thus make your Windows based system almost unusable. This malware have ability to change your security settings as well as bypass your firewall. Usually this malware is designed to change your system settings, desktop back ground, browser's homepage settings and thus opens a back door for other harmful infection to get control over your compromised system. Troj/HkCert-A is really hazardous infection and it is recommended to use Automatic removal tool and protect your system from this severe infection.
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