FYI, NIS 22.5.2.15 scan quarantined a Malwarebytes (free version) component as malware; info has been submitted to Symantec/Norton via Community Watch:
NIS Category: Date & Time,Risk,Activity,Status,Recommended Action,Date Updated,Submitted By,Description,Submission Details 9/17/2015 4:23:07 AM,Info,Statistical Submission: Backdoor.Regin,Submitted,No Action Required,9/17/2015 7:18:40 AM,Norton Internet Security,Statistical Submission: Backdoor.Regin,"CSIDL_PROGRAM_FILES\malwarebytes anti-malware\00029337.tmp
Detection Digest:
03 00 EA AF 08 01 01 03 00 1F 53 2A FB 6A 4B 5D ..........S*.jK]
4D 3C 1E E4 87 48 C3 20 9A 00 00 00 00 00 00 00 M<...H. ........
00 00 00 00 00 00 00 00 00 B2 FD C3 85 04 03 00 ................
00 C8 19 03 06 00 01 03 02 00 00 00 06 22 00 08 .............\"..
01 12 04 00 00 00 00 1A 04 00 00 00 00 22 08 00 .............\"..
00 00 00 00 00 00 00 2A 08 00 00 00 00 00 00 00 .......*........
00 .
OS-Country:1
OS-Language:English
Processor:Intel64 Family 6 Model 44 Stepping 2
System:Windows 7 build 7601 Service Pack 1
Platform-GUID:F8458AA0-CAC0-11DF-87F4-7071BC35DE04
DateSubmitted:Thu, 17 Sep 2015 14:18:39 GMT
Product:Norton Internet Security 22.5.2.15"