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Since 2004, October has been recognized as Cybersecurity Awareness Month by organizations like the Cybersecurity and Infrastructure Security Agency (CISA) and the National Cybersecurity Alliance (NCA), which are dedicated to helping individuals better protect themselves against online threats. This year CISA and NCA are focusing on the human element of security, with the 2022 Cybersecurity…

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…

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…

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…

On September 21, 2022, the LockBit 3.0 ransomware builder named “Black” was leaked online by a developer working for the LockBit threat group. On September 22, 2022, security researchers Yang HuiSeong and Jeong Hyunsik released a technical analysis of the code. The leaked code is currently available on GitHub. Threat Actor Details LockBit is a…