With respect to Adobe Flash, please be advised of the following: The following is a screenshot of a site distributing CrescentCore masquerading as Adobe Flash Player: For Mac users who are not running in a VM environment and who are not using antivirus malware protection software, a LaunchAgent will begin to install when you click Update or Download Flash. Notably, if this malware detects that it is running in a VM environment or if it detects that antivirus malware protection software is running on a device, the malware will simply exit.
This malware functions as a trojan horse that will install malicious Safari extensions, rogue disk cleaners and possibly more malware. Mac malware dubbed CrescentCore, which is available through Google search results and numerous sites, masquerades as an updater or installer for Adobe Flash Media Player.
