Microsoft Teams Up Against Ransomware: Rhysida’s Fake Installer Fiasco Foiled!
Microsoft has foiled a Rhysida ransomware spree by pulling the plug on over 200 rogue certificates. Vanilla Tempest, the mischief-makers, impersonated Microsoft Teams with domains like “teams-install[.]top.” Their fake installers, like MSTeamsSetup.exe, packed the Oyster backdoor, giving them naughty access to your files. Beware of impostors bearing gifts—or downloads!
Hot Take:
In the latest episode of “Hackers vs. Tech Giants,” Microsoft flexes its mighty tech muscles by revoking over 200 certificates from Vanilla Tempest’s arsenal of trickery. Who knew that even ransomware needs a license to thrill? As for Vanilla Tempest, they might want to change their name to “Vanilla Storm in a Teacup” after this setback!
Key Points:
- Microsoft revoked over 200 certificates used for malicious Teams installers.
- Vanilla Tempest’s campaign involved fake domains mimicking Microsoft Teams.
- The attacks utilized Oyster malware, a backdoor providing remote access.
- Vanilla Tempest’s malvertising campaign began in late September 2023.
- The group has previously targeted sectors like education and healthcare.
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