Tag: threat
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Microsoft revokes 200+ certificates abused by Vanilla Tempest in fake Teams campaign
Microsoft revoked 200+ certificates used by Vanilla Tempest to sign fake Teams installers spreading Oyster backdoor and Rhysida ransomware. Microsoft revoked over 200 certificates used by the cybercrime group Vanilla Tempest (aka VICE SPIDER and Vice Society) to sign fake Teams installers spreading the Oyster backdoor and Rhysida ransomware. The threat actor has been active…
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CISOs face quantum leap in prioritizing quantum resilience
Tags: apple, attack, ciso, cloud, computer, computing, crypto, cybersecurity, data, data-breach, encryption, finance, governance, government, Hardware, healthcare, infrastructure, nist, resilience, risk, service, software, supply-chain, technology, threat, vulnerabilityState of migration: Encryption underpins the security of everything from healthcare records to government data and e-commerce transactions.But just 8.5% of SSH servers currently support quantum-safe encryption.TLS 1.3 adoption, currently at 19%, also trails older, quantum-vulnerable versions, according to a recent study by Forescout.Other experts paint a more optimistic picture of PQC deployment since NIST…
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CISOs face quantum leap in prioritizing quantum resilience
Tags: apple, attack, ciso, cloud, computer, computing, crypto, cybersecurity, data, data-breach, encryption, finance, governance, government, Hardware, healthcare, infrastructure, nist, resilience, risk, service, software, supply-chain, technology, threat, vulnerabilityState of migration: Encryption underpins the security of everything from healthcare records to government data and e-commerce transactions.But just 8.5% of SSH servers currently support quantum-safe encryption.TLS 1.3 adoption, currently at 19%, also trails older, quantum-vulnerable versions, according to a recent study by Forescout.Other experts paint a more optimistic picture of PQC deployment since NIST…
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Microsoft revokes 200+ certificates abused by Vanilla Tempest in fake Teams campaign
Microsoft revoked 200+ certificates used by Vanilla Tempest to sign fake Teams installers spreading Oyster backdoor and Rhysida ransomware. Microsoft revoked over 200 certificates used by the cybercrime group Vanilla Tempest (aka VICE SPIDER and Vice Society) to sign fake Teams installers spreading the Oyster backdoor and Rhysida ransomware. The threat actor has been active…
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CISOs face quantum leap in prioritizing quantum resilience
Tags: apple, attack, ciso, cloud, computer, computing, crypto, cybersecurity, data, data-breach, encryption, finance, governance, government, Hardware, healthcare, infrastructure, nist, resilience, risk, service, software, supply-chain, technology, threat, vulnerabilityState of migration: Encryption underpins the security of everything from healthcare records to government data and e-commerce transactions.But just 8.5% of SSH servers currently support quantum-safe encryption.TLS 1.3 adoption, currently at 19%, also trails older, quantum-vulnerable versions, according to a recent study by Forescout.Other experts paint a more optimistic picture of PQC deployment since NIST…
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Microsoft revokes 200 certs used to sign malicious Teams installers
By revoking 200 software-signing certificates, Microsoft has hampered the activities of Vanilla Tempest, a ransomware-wielding threat actor that has been targeting … First seen on helpnetsecurity.com Jump to article: www.helpnetsecurity.com/2025/10/17/vanilla-tempest-fake-microsoft-teams/
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APT28 Deploys BeardShell and Covenant Modules via Weaponized Office Documents
Security researchers at Sekoia.io have uncovered a sophisticated cyberattack campaign orchestrated by APT28, the notorious Russian state-sponsored threat actor, targeting Ukrainian military personnel with weaponized Office documents that deliver advanced malware frameworks including BeardShell and Covenant modules. The operation represents a significant evolution in APT28’s tactics, leveraging legitimate cloud infrastructure and novel obfuscation techniques to…
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LinkPro: An eBPF-Based Rootkit Hiding Malicious Activity on GNU/Linux
Tags: access, backdoor, cve, cyber, data-breach, exploit, infection, Internet, linux, malicious, monitoring, technology, threat, vulnerabilitySecurity researchers from Synacktiv CSIRT have uncovered a sophisticated Linux rootkit dubbed LinkPro that leverages eBPF (extended Berkeley Packet Filter) technology to establish persistent backdoor access while remaining virtually invisible to traditional monitoring tools. The infection chain originated from a vulnerable Jenkins server exposed to the internet, exploited through CVE-2024-23897. Threat actors leveraged this initial…
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Microsoft Revokes 200 Fraudulent Certificates Used in Rhysida Ransomware Campaign
Microsoft on Thursday disclosed that it revoked more than 200 certificates used by a threat actor it tracks as Vanilla Tempest to fraudulently sign malicious binaries in ransomware attacks.The certificates were “used in fake Teams setup files to deliver the Oyster backdoor and ultimately deploy Rhysida ransomware,” the Microsoft Threat Intelligence team said in a…
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LinkPro: An eBPF-Based Rootkit Hiding Malicious Activity on GNU/Linux
Tags: access, backdoor, cve, cyber, data-breach, exploit, infection, Internet, linux, malicious, monitoring, technology, threat, vulnerabilitySecurity researchers from Synacktiv CSIRT have uncovered a sophisticated Linux rootkit dubbed LinkPro that leverages eBPF (extended Berkeley Packet Filter) technology to establish persistent backdoor access while remaining virtually invisible to traditional monitoring tools. The infection chain originated from a vulnerable Jenkins server exposed to the internet, exploited through CVE-2024-23897. Threat actors leveraged this initial…
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Auction giant Sotheby’s says data breach exposed financial information
Major international auction house Sotheby’s is notifying individuals of a data breach incident on its systems where threat actors stole sensitive information, including financial details. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/auction-giant-sothebys-says-data-breach-exposed-financial-information/
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Auction giant Sotheby’s says data breach exposed financial information
Major international auction house Sotheby’s is notifying individuals of a data breach incident on its systems where threat actors stole sensitive information, including financial details. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/auction-giant-sothebys-says-data-breach-exposed-financial-information/
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North Korean Hackers Exploit EtherHiding to Spread Malware and Steal Crypto Assets
Tags: attack, blockchain, crypto, cyber, cybercrime, cybersecurity, exploit, hacker, malicious, malware, north-korea, technology, threatThe cybersecurity landscape has witnessed a significant evolution in attack techniques with North Korean threat actors adopting EtherHiding, a sophisticated method that leverages blockchain technology to distribute malware and facilitate cryptocurrency theft. EtherHiding represents a fundamental shift in how cybercriminals store and deliver malicious payloads by embedding malware code within smart contracts on public blockchains…
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North Korean Hackers Exploit EtherHiding to Spread Malware and Steal Crypto Assets
Tags: attack, blockchain, crypto, cyber, cybercrime, cybersecurity, exploit, hacker, malicious, malware, north-korea, technology, threatThe cybersecurity landscape has witnessed a significant evolution in attack techniques with North Korean threat actors adopting EtherHiding, a sophisticated method that leverages blockchain technology to distribute malware and facilitate cryptocurrency theft. EtherHiding represents a fundamental shift in how cybercriminals store and deliver malicious payloads by embedding malware code within smart contracts on public blockchains…
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SIEM, Startups, and the Myth (Reality?) of IT Inertia: A Reformed Analyst Reflects on SIEM MQ 2025
Vaguely magical and quadranty thing (Gemini) It’s not every day you get to reflect on a journey that started as an odd “googley” startup and culminates in a shiny Leaders placement on a Gartner Magic Quadrant for SIEM 2025 (MQ). When I joined Chronicle in the summer of 2019″Š”, “Ša name now rolled into the broader Google…
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Emulating the Prominent Global Group Ransomware
AttackIQ has released a new attack graph that emulates the behaviors exhibited by Global Group ransomware, a threat that first appeared in June 2025 and quickly became notorious across the security landscape. The group has primarily targeted high-impact sectors such as healthcare, manufacturing, and professional services, where operational downtime can cause severe disruption. First seen…
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North Korean operatives spotted using evasive techniques to steal data and cryptocurrency
Research from Cisco Talos and Google Threat Intelligence Group underscores the extent to which North Korea-aligned attackers attempt to avoid detection. First seen on cyberscoop.com Jump to article: cyberscoop.com/north-korea-attackers-evasive-techniques-malware/
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Qantas, DraftKings, and Other Recent Breaches
Mid-October Check-In Here we are in mid-October, and 2025 shows no signs of slowing down on the cyber front. In just the past week, organizations across industries have suffered significant breaches, keeping threat researchers busy analyzing the fallout. From a major airline data leak affecting millions to attempted account takeovers at a sports betting giant,……
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F5 BIG-IP Breach: 44 CVEs That Need Your Attention Now
Tags: access, attack, breach, cisa, cloud, crowdstrike, cve, cvss, cyber, cybersecurity, data, data-breach, detection, edr, endpoint, exploit, government, Hardware, infrastructure, intelligence, Internet, kubernetes, malicious, mitigation, monitoring, network, risk, software, supply-chain, technology, theft, threat, tool, update, vulnerability, vulnerability-managementPartnering with an EDR vendor after a nation-state has already stolen your source code isn’t innovation, it’s a gamble. You don’t build a fire extinguisher while the house is burning. You find every spark before it becomes the next inferno. Key takeaways: F5’s BIG-IP is used to secure everything from government agencies to critical infrastructure. …
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Qantas, DraftKings, and Other Recent Breaches
Mid-October Check-In Here we are in mid-October, and 2025 shows no signs of slowing down on the cyber front. In just the past week, organizations across industries have suffered significant breaches, keeping threat researchers busy analyzing the fallout. From a major airline data leak affecting millions to attempted account takeovers at a sports betting giant,……
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F5 BIG-IP Breach: 44 CVEs That Need Your Attention Now
Tags: access, attack, breach, cisa, cloud, crowdstrike, cve, cvss, cyber, cybersecurity, data, data-breach, detection, edr, endpoint, exploit, government, Hardware, infrastructure, intelligence, Internet, kubernetes, malicious, mitigation, monitoring, network, risk, software, supply-chain, technology, theft, threat, tool, update, vulnerability, vulnerability-managementPartnering with an EDR vendor after a nation-state has already stolen your source code isn’t innovation, it’s a gamble. You don’t build a fire extinguisher while the house is burning. You find every spark before it becomes the next inferno. Key takeaways: F5’s BIG-IP is used to secure everything from government agencies to critical infrastructure. …
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Operation Zero Disco: Threat actors targets Cisco SNMP flaw to drop Linux rootkits
Hackers exploit Cisco SNMP flaw CVE-2025-20352 in “Zero Disco” attacks to deploy Linux rootkits on outdated systems, researchers report. Trend Micro researchers disclosed details of a new campaign, tracked as Operation Zero Disco, that exploited a recently disclosed security flaw impacting Cisco IOS Software and IOS XE Software to deploy Linux rootkits on older, unprotected…
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Why the F5 Hack Created an ‘Imminent Threat’ for Thousands of Networks
Networking software company F5 disclosed a long-term breach of its systems this week. The fallout could be severe. First seen on wired.com Jump to article: www.wired.com/story/f5-hack-networking-software-big-ip/
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Auction giant Sotheby’s says data breach exposed customer information
Major international auction house Sotheby’s is notifying customers of a data breach incident on its systems where threat actors stole sensitive information, including financial details. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/auction-giant-sothebys-says-data-breach-exposed-customer-information/
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Hackers exploit Cisco SNMP flaw to deploy rootkit on switches
Threat actors exploited a recently patched remote code execution vulnerability (CVE-2025-20352) in older, unprotected Cisco networking devices to deploy a Linux rootkit and gain persistent access. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/hackers-exploit-cisco-snmp-flaw-to-deploy-rootkit-on-switches/
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Rethinking Security Resilience And Getting Back To Basics At CornCon 11
CornCon 11 emphasized security basics, real-world risk alignment, and sustainable practices to help teams build resilient programs in today’s complex threat landscape. First seen on securityboulevard.com Jump to article: securityboulevard.com/2025/10/rethinking-security-resilience-and-getting-back-to-basics-at-corncon-11/
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Rethinking Security Resilience And Getting Back To Basics At CornCon 11
CornCon 11 emphasized security basics, real-world risk alignment, and sustainable practices to help teams build resilient programs in today’s complex threat landscape. First seen on securityboulevard.com Jump to article: securityboulevard.com/2025/10/rethinking-security-resilience-and-getting-back-to-basics-at-corncon-11/