Trojan-Downloader.Small.grk will put an infected system at risk of further infection by opening a backdoor to the system. Once Trojan-Downloader.Small.grk has accessed a system, it may produce outbound traffic and create a start-up registry key. Trojan-Downloader.Small.grk will attempt to steal a victim's sensitive information such as online banking details or credit card number. Trojan-Downloader.Small.grk may also compromise the security settings of certain security programs on an infected system. It is advisable to remove Trojan-Downloader.Small.grk as soon as possible if detected.