OVERSTEP

A threat actor has been deploying a previously unseen malware called OVERSTEP that modifies the boot process of fully-patched but no longer supported SonicWall Secure Mobile Access appliances. The backdoor …

A threat activity cluster has been observed targeting fully-patched end-of-life SonicWall Secure Mobile Access (SMA) 100 series appliances as part of a campaign designed to drop a backdoor called OVERSTEP. …