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Healthcare Cybersecurity Grand Rounds: Six Steps to Deliver a Proactive Security Plan

On 04 October 2022 CommonSpirit Health announced a cyberattack affecting its system of healthcare facilities. CommonSpirit Health operates more than 1,000 care sites and 140 hospitals in 21 states, including CHI (Catholic Health Initiatives) Health and MercyOne facilities in Iowa. CommonSpirit reported on their website that the attack affected their electronic medical record (EMR) and CHI Health and MercyOne have notified their patients that patient portals, electronic prescriptions, and scheduling have been affected, with some procedures delayed.

BianLian Ransomware Gang Gives It a Go!

Overview Earlier this year, [redacted] encountered a relatively new ransomware threat actor that called themselves BianLian. We observed the actor deploying custom malware that was written in the Go programming language, which posed some initial, but not insurmountable, reverse-engineering challenges. BianLian used subtle techniques to exploit, enumerate, and move laterally in victim networks to remain undetected and aggressively worked to counter Endpoint Detection & Response (EDR) protections during the encryption phase of their operations.

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