JDMurray said: How good are you already at Malware reverse engineering? Do you already know Intel or ARM assembly language and the operation of those CPUs? How up are you on all of the latest (and historical) Malware code obfuscation techniques? And most importantly for hiring purposes, what recent professional experience do you have at Malware reverse engineering?If your answers to these questions range from "not much" to "none" then I would say 504 would be your best choice--assuming that you want to work in security operations (SOC, IR).
E Double U said: I see that you already have OSCP. A former colleague also did GCIH after OSCP and he only found the first day useful because it covered incident handling steps. The remainder of the course focused on hacking techniques/tools he was already familiar with from OSCP. Granted the GCIH uses a blue team approach so it teaches you those techniques for the purpose of understanding how to defend them. Based on that I would say GREM. You could also just simply do whichever one interests you more or whichever provides immediate ROI. I am trying to give you advice without knowing what you do currently or what your future aim is.
LonerVamp said: To be fair, if you don't want to do malware analysis, you probably won't ever find GREM on a job description, since that is one of the main areas that GREM-holders will go towards. You can still do the course and cert if you want to add to your own skillsets, but I dont know of any other blue or red team jobs that will be looking at GREM in particular. Maybe...maybe IR jobs, but honestly if they list GREM, they're looking for a malware analyst for a large part of that job duty. (I have a colleague taking GREM in a few weeks, so maybe my perspective might change, but I doubt it.)GCIH is going to be more universal, but with your OSCP, I'd honestly suspect the GCIH may be a bit too accessible and easy. You might not learn much.You're doing GNFA, I see. I'd almost suggest going with GCFA as well as a compliment. Honestly, you can't go wrong with the level of material you will get at SANS, but some of the courses definitely are specialized to certain areas. GCFA goes into system forensics, memory forensics lite, and threat hunting/IR.But, if you're looking at something reocgnizable for job hiring filters, GCIH is probably easily doable for you. That said, you have CISSP which is *the* more recognizable cert for security, and you have OSCP, which is one of *the* more respected ones amongst those who know it. At this point, it won't much matter as long as you're learning skills and meeting people!