Three-quarters of malware samples uploaded to “no-distribute scanners” are never shared on “multiscanners” like VirusTotal, and hence, they remain unknown to security firms and researchers for longer periods of time. Although some antivirus products will eventually detect this malware at runtime or at one point or another later in time, this leaves a gap in terms of operational insight for security firms hunting down up-and-coming malware campaigns.
ORIGINAL SOURCE: Bleeping Computer