Malvertising and SEO Poisoning Deliver Fake Microsoft Teams Installers that Install Oyster Backdoor

NewsBy Cristian SantanaSeptember 27, 2025

Malvertising and SEO Poisoning Deliver Fake Microsoft Teams Installers that Install Oyster Backdoor Summary of the campaign Security researchers have observed attackers using search engine optimization (SEO) poisoning and paid search advertisements to surface malicious pages that present fake Microsoft Teams installers to Windows users. When downloaded and executed, these installers deploy the Oyster backdoor,…

China-linked PlugX Variant and Bookworm Campaign Target Asian Telecoms and ASEAN Networks

NewsBy Cristian SantanaSeptember 27, 2025

China-linked PlugX Variant and Bookworm Campaign Target Asian Telecoms and ASEAN Networks Summary of the campaign Security reporting highlights an ongoing campaign that is distributing a new variant of the PlugX backdoor (also known as Korplug or SOGU) while targeting telecommunications and manufacturing organizations across Central and South Asia, with impacts reported in ASEAN networks.…