Hello,
Suspicious.Cloud.2 is a detection technology designed to detect entirely new malware threats without traditional signatures. This technology is aimed at detecting malicious software that has been intentionally mutated or morphed by attackers.
Heuristic virus is nothing but a Suspicious file (not a threat, however the detection was made on suspicion). I believe, they have created a rule to block a file if found suspicious.
Have you installed Proactive Threat Protection Feature on your Symantec Endpoint Protection v.11?
Run a Full Scan on your machine on your machine.
- Start your Symantec antivirus program and make sure that it is configured to scan all the files.
For Norton AntiVirus consumer products: Read the document: How to configure Norton AntiVirus to scan all files.
For Symantec AntiVirus Enterprise products: Read the document: How to verify that a Symantec Corporate antivirus product is set to scan all files.
- Run a full system scan.
Also, I would also recommend you to submit the Files to the Symantec Security Response Team.
You would have to Submit the Files to the Symantec Response Team on the Following Sites:
https://submit.symantec.com/false_positive/
https://submit.symantec.com/websubmit/gold.cgi
http://www.threatexpert.com/submit.aspx
Note: ThreatExpert is owned by Symantec.
Hope this helps!!