is a component of Win64/Sirefef - a multi-component family of malware that uses stealth to hide its presence on your computer. The family consists of multiple parts that perform different functions, such as downloading updates and additional components, hiding existing components, or performing the payload.
For more information, please see the Win64/Sirefef family entry elsewhere in our encyclopedia.
There are no common symptoms associated with this threat. Alert notifications from installed antivirus software may be the only symptoms.