Cyber Security

Apr 13, 2023Ravie LakshmananMobile Security / Privacy Popular instant messaging app WhatsApp on Thursday announced a new account verification feature that ensures that malware running on a user’s mobile device doesn’t impact their account. “Mobile device malware is one of the biggest threats to people’s privacy and security today because it can take advantage of
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Apr 11, 2023Ravie LakshmananSoftware Security / Cryptocurrency Cybersecurity researchers have detailed the inner workings of the cryptocurrency stealer malware that was distributed via 13 malicious NuGet packages as part of a supply chain attack targeting .NET developers. The sophisticated typosquatting campaign, which was detailed by JFrog late last month, impersonated legitimate packages to execute PowerShell
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Apr 07, 2023Ravie Lakshmanan Microsoft said it teamed up with Fortra and Health Information Sharing and Analysis Center (Health-ISAC) to tackle the abuse of Cobalt Strike by cybercriminals to distribute malware, including ransomware. To that end, the tech giant’s Digital Crimes Unit (DCU) revealed that it secured a court order in the U.S. to “remove
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Apr 05, 2023Ravie LakshmananCyber Attack / Cyber Threat A North Korean government-backed threat actor has been linked to attacks targeting government and military personnel, think tanks, policy makers, academics, and researchers in South Korea and the U.S. Google’s Threat Analysis Group (TAG) is tracking the cluster under the name ARCHIPELAGO, which it said is a
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Apr 04, 2023Ravie LakshmananCryptocurrency / Cyber Attack The adversary behind the supply chain attack targeting 3CX deployed a second-stage implant specifically singling out a small number of cryptocurrency companies. Russian cybersecurity firm Kaspersky, which has been internally tracking the versatile backdoor under the name Gopuram since 2020, said it observed an increase in the number
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Microsoft has announced plans to automatically block embedded files with “dangerous extensions” in OneNote following reports that the note-taking service is being increasingly abused for malware delivery. Up until now, users were shown a dialog warning them that opening such attachments could harm their computer and data, but it was possible to dismiss the prompt
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Apr 01, 2023Ravie LakshmananAzure / Active Directory Microsoft has patched a misconfiguration issue impacting the Azure Active Directory (AAD) identity and access management service that exposed several “high-impact” applications to unauthorized access. “One of these apps is a content management system (CMS) that powers Bing.com and allowed us to not only modify search results, but
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Mar 30, 2023Ravie LakshmananEndpoint Security / Malware A Chinese state-sponsored threat activity group tracked as RedGolf has been attributed to the use of a custom Windows and Linux backdoor called KEYPLUG. “RedGolf is a particularly prolific Chinese state-sponsored threat actor group that has likely been active for many years against a wide range of industries
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Mar 28, 2023Ravie LakshmananArtificial Intelligence / Cyber Threat Microsoft on Tuesday unveiled Security Copilot in preview, marking its continued push to embed AI-oriented features in an attempt to offer “end-to-end defense at machine speed and scale.” Powered by OpenAI’s GPT-4 generative AI and its own security-specific model, it’s billed as a security analysis tool that
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Mar 27, 2023Ravie LakshmananPrivacy / Windows Security Microsoft has released an out-of-band update to address a privacy-defeating flaw in its screenshot editing tool for Windows 10 and Windows 11. The issue, dubbed aCropalypse, could enable malicious actors to recover edited portions of screenshots, potentially revealing sensitive information that may have been cropped out. Tracked as
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Mar 25, 2023Ravie LakshmananEnterprise Security / Microsoft Microsoft on Friday shared guidance to help customers discover indicators of compromise (IoCs) associated with a recently patched Outlook vulnerability. Tracked as CVE-2023-23397 (CVSS score: 9.8), the critical flaw relates to a case of privilege escalation that could be exploited to steal NT Lan Manager (NTLM) hashes and
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Mar 23, 2023Ravie LakshmananCyber Attack / Browser Security German and South Korean government agencies have warned about cyber attacks mounted by a threat actor tracked as Kimsuky using rogue browser extensions to steal users’ Gmail inboxes. The joint advisory comes from Germany’s domestic intelligence apparatus, the Federal Office for the Protection of the Constitution (BfV),
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Mar 18, 2023Ravie LakshmananNetwork Security / Cyber Espionage The zero-day exploitation of a now-patched medium-severity security flaw in the Fortinet FortiOS operating system has been linked to a suspected Chinese hacking group. Threat intelligence firm Mandiant, which made the attribution, said the activity cluster is part of a broader campaign designed to deploy backdoors onto
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Mar 17, 2023Ravie LakshmananMobile Security / Firmware Google is calling attention to a set of severe security flaws in Samsung’s Exynos chips, some of which could be exploited remotely to completely compromise a phone without requiring any user interaction. The 18 zero-day vulnerabilities affect a wide range of Android smartphones from Samsung, Vivo, Google, wearables
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Threat activity clusters affiliated with the Chinese and Russian cybercriminal ecosystems have been observed using a new piece of malware that’s designed to load Cobalt Strike onto infected machines. Dubbed SILKLOADER by Finnish cybersecurity company WithSecure, the malware leverages DLL side-loading techniques to deliver commercial adversary simulation software. The development comes as improved detection capabilities
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