Two Microsoft Exchange Zero-Days Being Exploited In-The-Wild

Context On September 29, 2022, security researchers at GTSC reported the technical details of two zero-day vulnerabilities they had observed being exploited by threat actors since August 2022. Microsoft confirmed the vulnerabilities and provided details of both: CVE-2022-41040 is a Server-Side Request Forgery (SSRF) vulnerability that can enable an authenticated attacker to remotely trigger the…

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Member Spotlight: Christy Elgee

RH-ISAC: What is your background in cybersecurity? Where did you get your training and education? Christy: My background is not originally in cybersecurity. I have only been working in cybersecurity for a little over a year. My background is actually in business. After earning my MBA, I began working at Hannaford, another company in the…

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New Intelligence Trends Report Analyzes Cyber Threats in the Retail, Hospitality, and Travel Sectors

Vienna, VA (September 29, 2022) – The Retail & Hospitality Information Sharing and Analysis Center (RH-ISAC) today released the first-ever public version of the Retail & Hospitality Intelligence Trends Summary, which analyzes trends in the cyberthreat landscape for the retail, hospitality, and travel sectors. The report sheds light on the top threats and malware families reported…

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Campaign Dropping Cobalt Strike Beacons, RedLine Infostealer, and Amadey Botnet

A recent campaign drops Cobalt Strike Beacons, the RedLine Infostealer, and the Amadey Botnet with malicious scripts using two distinct methods. Context On September 28, 2022, Talos security researchers reported a campaign delivering Cobalt Strike beacons, the RedLine Infostealer, and Amadey botnet executables active since at least August 2022. Cobalt Strike is by far the…

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New “NullMixer” Dropper Spreading Multiple Malware Families

A new dropper named “NullMixer” is spreading multiple malware families, including some seen regularly by the RH-ISAC community. Context On September 26, 2022, researchers at SecureList reported a new dropper they named “NullMixer” which spreads multiple malware families via malicious websites impersonating legitimate software downloads. According to SecureList, in addition to multiple malware families, NullMixer…

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