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Security Awareness – Social Engineering Techniques Being Used to Exploit Microsoft Teams

Proofpoint has posted a blog discussing research into new ways to exploit Microsoft Teams, including post account compromise impersonation and manipulation techniques, weaponized meeting invites by replacing default URLs with malicious links, and weaponized messages by replacing existing URLs with malicious links. The blog details how to use each exploit at a high level, along with examples.

Joint Cybersecurity Advisory – #StopRansomware: BianLian Ransomware Group

WaterISAC regularly provides awareness of recent CISA reporting. While direct relevance to your utility/organization on the details of each report may vary, activity alerts like this are practical for general awareness of active threats and adversary capabilities.

CISA, the FBI, and the Australian Cyber Security Centre (ACSC) recently published a joint Cybersecurity Advisory (CSA) to provide network defenders with technical information, recommended actions, and mitigations to protect against BianLian Ransomware.

Threat Awareness – Threat Actors Continue Experimenting with Alternative Techniques Since Microsoft Disabled Macros

Weaponized Microsoft documents were a highly favored technique until Microsoft put the kibosh on macros in files received from the internet last year. As such, WaterISAC been tracking the various tactics threat actors have migrated to. According to Proofpoint, Microsoft’s action has resulted in a monumental shift in activity and threat behavior over the last year in a way not previously observed by threat researchers.

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