Do Son Rhysida ransomware is abusing Microsoft Trusted Signing to deploy OysterLoader (IAT) via Bing/Teams malvertising. The gang leveraged 40+ certificates to sign malware, bypassing security filters.
Rhysida ransomware is abusing Microsoft Trusted Signing to deploy OysterLoader (IAT) via Bing/Teams malvertising. The gang leveraged 40+ certificates to sign malware, bypassing security filters.