In addition to patching, several mitigation strategies can help reduce the risk:
The scfilter.sys driver is a kernel-mode driver that enables functionality. Its primary roles include: Detection : Monitoring for smart card insertion events. scfilter cid87d25e32ac0d4ef0b1e0502c6b7dfb77 patched
If you are looking for this because of a system error (like a BSOD) or a virus scan: In addition to patching, several mitigation strategies can
as a potential threat, though it is a legitimate system file. How to Apply or Verify Patches In addition to patching