Hello,
Symantec has released the following detection for attempts to exploit the Multiple CPU Hardwares Information Disclosure Vulnerability (CVE-2017-5753/Spectre):
Exp.CVE-2017-5753
https://www.symantec.com/security_response/writeup.jsp?docid=2018-010508-3826-99
However, Spectre (CVE-2017-5753 and CVE-2017-5715) has a similar outcome but works in a slightly different way, and exploits a flaw in processor design to trick an application into leaking information stored in memory. According to the team who discovered Spectre, virtually all modern processors are affected by the vulnerability, including Intel, AMD, and ARM chips. Once again, the vulnerability is operating system agnostic. Spectre is reportedly more difficult to patch but also more difficult to exploit. Work is underway to harden software against any potential exploits.