Bad guys hate this one weird trick

from here and here

Thanks to Chinese attackers targeting France, today I learned that most router malware can't survive a reboot - and now you learned it too.

No One Uses Just Signatures Anymore

from here

One of the most persistent misconceptions about antivirus is that it's just signature-based scanning. Antivirus vendors moved on from that model decades ago. That doesn't mean they dropped signature-based scanning, but rather that they added many other things into the mix.