The Bumblebee malware loader is delivering separate payloads for different machines and using new evasion techniques.
The trojanized file was identified at organizations in the industrial, healthcare, technology, manufacturing, insurance and telecommunications sectors in North America and Europe, according to researchers.
A new piece of malware known as Chaos that is built for Windows and Linux systems is infecting home routers, enterprise servers, and other devices and launching DDoS attacks.
The Qakbot emails show the long tail of exploitation efforts against the Microsoft ProxyLogon flaw.
Kaspersky researchers have found a new UEFI rootkit called CosmicStrand that infects the firmware of some specific motherboards.