Beware the Fake Microsoft Teams Download: Oyster Malware Takes a Bite Out of Security!
Beware of the Oyster malware—a sneaky backdoor disguised as a legitimate Microsoft Teams installer. Cybercriminals use SEO poisoning and malvertising to trick users into downloading it. Once inside, Oyster grants long-term control over your computer. Protect yourself by downloading software directly from official websites, not from search results or ads.
Hot Take:
Who knew that downloading Microsoft Teams could turn you into a secret agent’s sidekick? One minute, you’re innocently trying to join a virtual meeting, and the next, you’re unwittingly hosting a cybercriminal’s personal LAN party on your computer. Oyster malware is the uninvited guest that keeps on giving, and by ‘giving,’ I mean it gives your personal information a one-way ticket to hacker land. So, next time you download anything, make sure it’s the real deal, or you might end up on a virtual mission impossible.
Key Points:
- Oyster, aka Broomstick, is a backdoor malware disguised as a Microsoft Teams installer.
- Cybercriminals use SEO poisoning and malvertising to trick users into downloading the fake installer.
- The malware is signed with dubious certificates to pass basic security checks.
- Oyster establishes a Command and Control (C2) line for remote access and updates.
- Blackpoint Cyber emphasizes downloading software only from official websites.