Microsoft

Signed malware impersonating workplace apps deploys RMM backdoors

Signed malware backed by a stolen EV certificate deployed legitimate RMM tools to gain persistent access inside enterprise ...

Microsoft: Hackers abuse OAuth error flows to spread malware

Hackers are abusing the legitimate OAuth redirection mechanism to bypass phishing protections in email and browsers to take ...

OAuth phishers make ‘check where the link points’ advice ineffective

Microsoft has identified a phishing campaign using malformed links to legitimate OAuth services to redirect to malware ...
Microsoft

OAuth redirection abuse enables phishing and malware delivery

OAuth redirection is being repurposed as a phishing delivery path. Trusted authentication flows are weaponized to move users ...