Need information why an instance that mcafee failed to deleted or respond properly on threat.
Notice on Threat Handle is FALSE.
Should I worry?
what are the mitigation?
It's not uncommon for antivirus products to miss new malware samples that vendors haven't had a chance to analyze. That's why products like Threat intelligence exchange and ATD exist... You can submit the file to McAfee for analysis:
Can you share more info from that event? If it's generating an even then it's probably picking up the file, but it's not able to remove/clean it for whatever reason.