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5 articles

Microsoft Teams chat interface showing an external identity warning prompt, illustrating the vishing attack vector used in the Spring Ring campaign.HIGH
Malware

Spring Ring Vishing Campaign Targets Microsoft Teams Users

Spring Ring vishing hit 150+ employees across 10 firms via Microsoft Teams, pushing RMM tools and NTLM relay attacks against domain controllers.

4 min readSpring Ring
Chart showing rising collaboration tool alerts over 12 monthsHIGH
Malware

Identity Abuse via Trusted Chat Channels Quadruples, Unit 42 Warns

Unit 42 reports collaboration-tool identity attacks quadrupled in 12 months, with 99% of alerts tied to chat phishing. APT29 abused Microsoft Teams federation for credential theft.

4 min readAPT29
ModeloRAT Campaign Abuses Microsoft Teams for Enterprise IntrusionCRITICAL
Threat Intel

ModeloRAT Campaign Abuses Microsoft Teams for Enterprise Intrusion

Rapid7 dissects an April 2026 intrusion where a fake IT Support Teams message delivered ModeloRAT via Dropbox, leading to privilege escalation, credential theft, and lateral...

CVE-2023-36036
4 min readKongTuke
Mandiant: Fake Teams Help Desk Deploys Info-Stealing MalwareHIGH
Threat Intel

Mandiant: Fake Teams Help Desk Deploys Info-Stealing Malware

Mandiant details a social engineering campaign where attackers pose as Microsoft Teams help desk staff to trick victims into installing malware that steals credentials and session…

2 min read
UNC6692 Hijacks Microsoft Teams to Deploy SNOW Malware SuiteHIGH
Threat Intel

UNC6692 Hijacks Microsoft Teams to Deploy SNOW Malware Suite

UNC6692 impersonates IT helpdesk staff via Microsoft Teams chats to trick victims into installing SNOW malware — a custom backdoor with credential theft and lateral movement…

2 min readUNC6692

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