blackbook is a historical (black)list of malicious domains created as part of the periodic automated heuristic check (i.e. WHOIS, HTTP, etc.) of newly reported entries from public lists of malicious URLs (currently CyberCrime, URLhaus, ScumBots, Benkow and ViriBack). Main goal is listing those that are/were malware dedicated (e.g. C&C) - thus, excluding compromised sites. It is supposed to be used for detection of malware beaconing infected clients by inspection of associated DNS traffic, with significant reduce of false-positives.
Up-to-date detailed CSV list of domains can be found here, while the raw TXT version can be found here.