Q said "Think mirror" on 9 NOV 2017. This may mean to completely reverse some of his text.
I'm looking at this now:
SIG_con_MAR39sv3665BECD
Reverse:
DCEB5663vs93RAM_noc_GIS
All of a sudden, we have DC in there. Hmm.
How about noc_GIS?
Network Operations Center - Geographic Informations System
I don't know about the rest other than the "vs" in there looks like it could refer to a court case.
God bless, anons!