Trend Micro researchers have discovered a new worm that is fileless and can now be spread through removable USB drives and other storage devices. The worm installs a new and updated version of Bladabindi (njRAT/Njw0rm) — a remote access tool (RAT) that they write has a myriad of backdoor capabilities. The researchers note that this makes the worm’s payload — the backdoor — difficult to detect. Since the payload does not come from a system disk, it makes detection by standard antivirus software difficult.”]