Security suites and online Web scanners detected only a little more than half of rootkits. Anti-rootkit tools did the best, detecting about 80 percent of the rootkit, while security suites found over 66 percent. Avira AntiVir Premium Security Suite 7.06.00.168 and BitDefenders Internet Security Suite 2008 11.0.13 led the pack in overall detection of both inactive and active rootkit-hidden malware. Web-based security online scanners overall struggled to remove rootkites, with a 32 percent success rate.”]
Source: https://www.darkreading.com/analytics/new-tests-show-rootkits-still-evade-av