Tag: threat
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Threat Actors Poison SEO to Spread Fake Microsoft Teams Installer
The Chinese advanced persistent threat (APT) group Silver Fox (also known as Void Arachne) has launched a sophisticated search engine optimization (SEO) poisoning campaign targeting Chinese-speaking employees at organizations worldwide. The campaign distributes a counterfeit Microsoft Teams installer laced with ValleyRAT malware, while employing Cyrillic characters and Russian-language elements as deliberate false flags to mislead…
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GOLD BLADE: Custom QWCrypt Locker for Data Exfiltration and Ransomware Deployment
Between February 2024 and August 2025, security researchers uncovered a significant campaign orchestrated by the GOLD BLADE threat group, previously known as RedCurl, RedWolf, and Earth Kapre. The investigation of nearly 40 intrusions linked to STAC6565 reveals a sophisticated threat actor that has evolved from traditional cyberespionage into a hybrid operation combining data theft with…
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Threat Actors Poison SEO to Spread Fake Microsoft Teams Installer
The Chinese advanced persistent threat (APT) group Silver Fox (also known as Void Arachne) has launched a sophisticated search engine optimization (SEO) poisoning campaign targeting Chinese-speaking employees at organizations worldwide. The campaign distributes a counterfeit Microsoft Teams installer laced with ValleyRAT malware, while employing Cyrillic characters and Russian-language elements as deliberate false flags to mislead…
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GitHub Action Secrets aren’t secret anymore: exposed PATs now a direct path into cloud environments
Tags: access, api, authentication, awareness, cloud, credentials, data-breach, detection, exploit, github, infrastructure, malicious, mfa, monitoring, security-incident, strategy, threat, trainingEasily evading detection: Wiz found that a threat actor with basic read permissions via a PAT can use GitHub’s API code search to discover secret names embedded directly in a workflow’s yaml code, accessed via “${{ secrets.SECRET_NAME }}.”The danger is that this secret discovery method is difficult to monitor because search API calls are not…
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GOLD BLADE: Custom QWCrypt Locker for Data Exfiltration and Ransomware Deployment
Between February 2024 and August 2025, security researchers uncovered a significant campaign orchestrated by the GOLD BLADE threat group, previously known as RedCurl, RedWolf, and Earth Kapre. The investigation of nearly 40 intrusions linked to STAC6565 reveals a sophisticated threat actor that has evolved from traditional cyberespionage into a hybrid operation combining data theft with…
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GitHub Action Secrets aren’t secret anymore: exposed PATs now a direct path into cloud environments
Tags: access, api, authentication, awareness, cloud, credentials, data-breach, detection, exploit, github, infrastructure, malicious, mfa, monitoring, security-incident, strategy, threat, trainingEasily evading detection: Wiz found that a threat actor with basic read permissions via a PAT can use GitHub’s API code search to discover secret names embedded directly in a workflow’s yaml code, accessed via “${{ secrets.SECRET_NAME }}.”The danger is that this secret discovery method is difficult to monitor because search API calls are not…
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GOLD BLADE: Custom QWCrypt Locker for Data Exfiltration and Ransomware Deployment
Between February 2024 and August 2025, security researchers uncovered a significant campaign orchestrated by the GOLD BLADE threat group, previously known as RedCurl, RedWolf, and Earth Kapre. The investigation of nearly 40 intrusions linked to STAC6565 reveals a sophisticated threat actor that has evolved from traditional cyberespionage into a hybrid operation combining data theft with…
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GitHub Action Secrets aren’t secret anymore: exposed PATs now a direct path into cloud environments
Tags: access, api, authentication, awareness, cloud, credentials, data-breach, detection, exploit, github, infrastructure, malicious, mfa, monitoring, security-incident, strategy, threat, trainingEasily evading detection: Wiz found that a threat actor with basic read permissions via a PAT can use GitHub’s API code search to discover secret names embedded directly in a workflow’s yaml code, accessed via “${{ secrets.SECRET_NAME }}.”The danger is that this secret discovery method is difficult to monitor because search API calls are not…
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Makop Ransomware Targets RDP Systems Using AV Killer and Additional Exploits
Makop, a ransomware strain derived from Phobos, continues to pose a significant threat by exploiting exposed Remote Desktop Protocol (RDP) systems and integrating new attack components, including antivirus-killer modules and advanced privilege-escalation exploits. Recent investigations by Acronis TRU researchers reveal that Makop operators have evolved their methodology to include multiple evasion techniques and secondary payload…
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Makop Ransomware Targets RDP Systems Using AV Killer and Additional Exploits
Makop, a ransomware strain derived from Phobos, continues to pose a significant threat by exploiting exposed Remote Desktop Protocol (RDP) systems and integrating new attack components, including antivirus-killer modules and advanced privilege-escalation exploits. Recent investigations by Acronis TRU researchers reveal that Makop operators have evolved their methodology to include multiple evasion techniques and secondary payload…
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Makop Ransomware Targets RDP Systems Using AV Killer and Additional Exploits
Makop, a ransomware strain derived from Phobos, continues to pose a significant threat by exploiting exposed Remote Desktop Protocol (RDP) systems and integrating new attack components, including antivirus-killer modules and advanced privilege-escalation exploits. Recent investigations by Acronis TRU researchers reveal that Makop operators have evolved their methodology to include multiple evasion techniques and secondary payload…
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Makop Ransomware Targets RDP Systems Using AV Killer and Additional Exploits
Makop, a ransomware strain derived from Phobos, continues to pose a significant threat by exploiting exposed Remote Desktop Protocol (RDP) systems and integrating new attack components, including antivirus-killer modules and advanced privilege-escalation exploits. Recent investigations by Acronis TRU researchers reveal that Makop operators have evolved their methodology to include multiple evasion techniques and secondary payload…
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Threat Actors Poison SEO to Spread Fake Microsoft Teams Installer
The Chinese advanced persistent threat (APT) group Silver Fox (also known as Void Arachne) has launched a sophisticated search engine optimization (SEO) poisoning campaign targeting Chinese-speaking employees at organizations worldwide. The campaign distributes a counterfeit Microsoft Teams installer laced with ValleyRAT malware, while employing Cyrillic characters and Russian-language elements as deliberate false flags to mislead…
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Threat Actors Poison SEO to Spread Fake Microsoft Teams Installer
The Chinese advanced persistent threat (APT) group Silver Fox (also known as Void Arachne) has launched a sophisticated search engine optimization (SEO) poisoning campaign targeting Chinese-speaking employees at organizations worldwide. The campaign distributes a counterfeit Microsoft Teams installer laced with ValleyRAT malware, while employing Cyrillic characters and Russian-language elements as deliberate false flags to mislead…
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GOLD BLADE: Custom QWCrypt Locker for Data Exfiltration and Ransomware Deployment
Between February 2024 and August 2025, security researchers uncovered a significant campaign orchestrated by the GOLD BLADE threat group, previously known as RedCurl, RedWolf, and Earth Kapre. The investigation of nearly 40 intrusions linked to STAC6565 reveals a sophisticated threat actor that has evolved from traditional cyberespionage into a hybrid operation combining data theft with…
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Spiderman Phishing Kit Targets European Banks with Real-Time Credential Theft
Varonis threat analysts warn about Spiderman, a dangerous new kit that automates attacks against European banks and crypto customers, stealing a victim’s full identity profile. First seen on hackread.com Jump to article: hackread.com/spiderman-phishing-kit-european-banks-credential-theft/
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Synthetic Businesses: the New Billion-Dollar Fraud Machine
Weak State Controls and AI-Generated Documents Fuel Surge in Synthetic Entity Fraud. Fraudsters are exploiting weak state controls to create synthetic businesses for less than $150, with potential payouts of more than $100,000 for each fake identity. Synthetic entity fraud has rapidly shifted from a niche threat to a mainstream risk, said Dun & Bradstreet’s…
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North Korea-linked Actors Exploit React2Shell to Deploy New EtherRAT Malware
Threat actors with ties to North Korea have likely become the latest to exploit the recently disclosed critical security React2Shell flaw in React Server Components (RSC) to deliver a previously undocumented remote access trojan dubbed EtherRAT.”EtherRAT leverages Ethereum smart contracts for command-and-control (C2) resolution, deploys five independent Linux persistence mechanisms, and First seen on thehackernews.com…
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Exploitation Efforts Against Critical React2Shell Flaw Accelerate
The exploitation efforts by China-nexus groups and other bad actors against the critical and easily abused React2Shell flaw in the popular React and Next.js software accelerated over the weekend, with threats ranging from stolen credentials and initial access to downloaders, crypto-mining, and the NoodleRat backdoor being executed. First seen on securityboulevard.com Jump to article: securityboulevard.com/2025/12/exploitation-efforts-against-critical-react2shell-flaw-accelerate/
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AI-Powered Security Operations: Governance Considerations for Microsoft Sentinel Enterprise Deployments
The Tech Field Day Exclusive with Microsoft Security (#TFDxMSSec25) spotlighted one of the most aggressive demonstrations of AI-powered security operations to date. Microsoft showcased how Sentinel’s evolving data lake and graph architecture now drive real-time, machine-assisted threat response. The demo of “Attack Disruption” captured the promise”, and the unease”, of a security operations center where…
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Exploitation Efforts Against Critical React2Shell Flaw Accelerate
The exploitation efforts by China-nexus groups and other bad actors against the critical and easily abused React2Shell flaw in the popular React and Next.js software accelerated over the weekend, with threats ranging from stolen credentials and initial access to downloaders, crypto-mining, and the NoodleRat backdoor being executed. First seen on securityboulevard.com Jump to article: securityboulevard.com/2025/12/exploitation-efforts-against-critical-react2shell-flaw-accelerate/
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Four Threat Clusters Using CastleLoader as GrayBravo Expands Its Malware Service Infrastructure
Four distinct threat activity clusters have been observed leveraging a malware loader known as CastleLoader, strengthening the previous assessment that the tool is offered to other threat actors under a malware-as-a-service (MaaS) model.The threat actor behind CastleLoader has been assigned the name GrayBravo by Recorded Future’s Insikt Group, which was previously tracking it as TAG-150.…
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Broadside botnet hits TBK DVRs, raising alarms for maritime logistics
Mirai-based Broadside botnet targets vulnerable TBK Vision DVRs, posing a potential threat to the maritime logistics sector, Cydome warns. Cydome researchers have identified a new Mirai botnet variant dubbed Broadside that is targeting the maritime logistics sector by exploiting thecommand injection vulnerabilityCVE-2024-3721 in TBK DVR devices used on vessels. >>Cydome’s Cybersecurity Research Team has identified…
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Storm-0249 Escalates Ransomware Attacks with ClickFix, Fileless PowerShell, and DLL Sideloading
The threat actor known as Storm-0249 is likely shifting from its role as an initial access broker to adopt a combination of more advanced tactics like domain spoofing, DLL side-loading, and fileless PowerShell execution to facilitate ransomware attacks.”These methods allow them to bypass defenses, infiltrate networks, maintain persistence, and operate undetected, raising serious concerns for…
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KnowBe4 Threat Labs entdeckt hochentwickelte mehrstufige Phishing-Kampagne
Zunächst erhalten die Opfer eine Phishing-E-Mail. Die Nutzlast ein Phishing-Hyperlink ist auf ihr in ‘verschachtelten” PDF-Anhängen versteckt. Wenn ein Opfer den ersten Anhang der Phishing-E-Mail öffnet, sieht es ein gerendertes Dokument mit einem weiteren Hyperlink, auf den es klicken kann. First seen on infopoint-security.de Jump to article: www.infopoint-security.de/knowbe4-threat-labs-entdeckt-hochentwickelte-mehrstufige-phishing-kampagne/a43102/
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AI-Driven Tools Uncover GhostPenguin Backdoor Attacking Linux Servers
A sophisticated Linux backdoor named GhostPenguin has been discovered by Trend Micro Research, evading detection for over four months after its initial submission to VirusTotal in July 2025. The threat represents a new breed of stealthy malware designed to maintain a low profile while delivering comprehensive remote access and file system manipulation capabilities to threat…
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AI-Driven Tools Uncover GhostPenguin Backdoor Attacking Linux Servers
A sophisticated Linux backdoor named GhostPenguin has been discovered by Trend Micro Research, evading detection for over four months after its initial submission to VirusTotal in July 2025. The threat represents a new breed of stealthy malware designed to maintain a low profile while delivering comprehensive remote access and file system manipulation capabilities to threat…