In my last diary, we went over the impact of different Base encodings on the ability of anti-malware tools to detect malicious code[1]. Since results of our tests showed (among other things) that AV tools in general still struggle significantly more with detecting 64-bit malicious code then 32-bit malicious code, I thought it might be interesting to discuss another factor that might impact the ability of AVs to detect malware – specifically the choice of a compiler.