Tag: backdoor
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Iran-Linked MuddyWater Deploys Phoenix v4 Backdoor via Compromised Emails and NordVPN Exit Node
The post Iran-Linked MuddyWater Deploys Phoenix v4 Backdoor via Compromised Emails and NordVPN Exit Node appeared first on Daily CyberSecurity. First seen on securityonline.info Jump to article: securityonline.info/iran-linked-muddywater-deploys-phoenix-v4-backdoor-via-compromised-emails-and-nordvpn-exit-node/
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Iranian hackers targeted over 100 govt orgs with Phoenix backdoor
State-sponsored Iranian hacker group MuddyWater has targeted more than 100 government entities in attacks that deployed version 4 of the Phoenix backdoor. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/iranian-hackers-targeted-over-100-govt-orgs-with-phoenix-backdoor/
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Bitter APT Exploiting Old WinRAR Vulnerability in New Backdoor Attacks
South Asian hacking group Bitter (APT-Q-37) is deploying a C# backdoor using two new methods: a WinRAR flaw and malicious Office XLAM files, targeting government and military sectors. First seen on hackread.com Jump to article: hackread.com/bitter-apt-winrar-vulnerability-backdoor-attacks/
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F5 BIG-IP Source Code Leak Tied to State-Linked Campaigns Using BRICKSTORM Backdoor
First seen on resecurity.com Jump to article: www.resecurity.com/blog/article/f5-big-ip-source-code-leak-tied-to-state-linked-campaigns-using-brickstorm-backdoor
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Iran-Linked MuddyWater Targets 100+ Organisations in Global Espionage Campaign
The Iranian nation-state group known as MuddyWater has been attributed to a new campaign that has leveraged a compromised email account to distribute a backdoor called Phoenix to various organizations across the Middle East and North Africa (MENA) region, including over 100 government entities.The end goal of the campaign is to infiltrate high-value targets and…
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MuddyWater Targets 100+ Gov Entities in MEA with Phoenix Backdoor
The Iranian threat group is using a compromised mailbox accessed through NordVPN to send phishing emails that prompt recipients to enable macros. First seen on darkreading.com Jump to article: www.darkreading.com/cyberattacks-data-breaches/muddywater-100-gov-entites-mea-phoenix-backdoor
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Attackers turn trusted OAuth apps into cloud backdoors
Attackers are increasingly abusing internal OAuth-based applications to gain persistent access to cloud environments, Proofpoint researchers warn. These apps often remain … First seen on helpnetsecurity.com Jump to article: www.helpnetsecurity.com/2025/10/22/attackers-turn-trusted-oauth-apps-into-cloud-backdoors/
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Bitter APT Exploits WinRAR Zero-Day Through Malicious Word Files to Steal Sensitive Data
In a newly uncovered campaign, the threat group known as Bitter”, also tracked as APT-Q-37″, has leveraged both malicious Office macros and a previously undocumented WinRAR path traversal vulnerability to deliver a C# backdoor and siphon sensitive information. Researchers at Qi’anxin Threat Intelligence Center warn that this dual-pronged attack illustrates the group’s evolving tactics and…
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Self-propagating worm found in marketplaces for Visual Studio Code extensions
Tags: access, application-security, attack, backdoor, backup, best-practice, blockchain, breach, ciso, control, credentials, crime, crypto, cyber, data, data-breach, endpoint, framework, github, gitlab, google, government, identity, incident response, infrastructure, intelligence, least-privilege, login, malicious, malware, marketplace, network, open-source, resilience, risk, sans, security-incident, software, supply-chain, threat, tool, update, wormMarketplaces targeted: The Koi Security report is the latest in a series of warnings that threat actors are increasingly targeting VS Code marketplaces in supply chain attacks. Last week, Koi Security exposed a threat actor dubbed TigerJack spreading malicious extensions. And researchers at Wiz just published research showing the widespread abuse of the OpenVSX and…
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PassiveNeuron Cyberespionage Resurfaces: APT Abuses MS SQL Servers to Deploy Stealthy Neursite Backdoor
The post PassiveNeuron Cyberespionage Resurfaces: APT Abuses MS SQL Servers to Deploy Stealthy Neursite Backdoor appeared first on Daily CyberSecurity. First seen on securityonline.info Jump to article: securityonline.info/passiveneuron-cyberespionage-resurfaces-apt-abuses-ms-sql-servers-to-deploy-stealthy-neursite-backdoor/
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Bitter APT Attacks China/Pakistan with WinRAR Zero-Day and New C# Backdoor via Office Macro
The post Bitter APT Attacks China/Pakistan with WinRAR Zero-Day and New C# Backdoor via Office Macro appeared first on Daily CyberSecurity. First seen on securityonline.info Jump to article: securityonline.info/bitter-apt-attacks-china-pakistan-with-winrar-zero-day-and-new-c-backdoor-via-office-macro/
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CAPI Backdoor targets Russia’s auto and e-commerce sectors
A new campaign targets Russia’s auto and e-commerce sectors using a previously unknown .NET malware called CAPI Backdoor. Cybersecurity researchers at Seqrite Labs uncovered a new campaign, tracked as Operation MotorBeacon, that targeted the Russian automobile and e-commerce sectors with a previously unknown .NET malware dubbed CAPI Backdoor. >>SEQRITE Labs Research Team has recently uncovered a…
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New .NET CAPI Backdoor Targets Russian Auto and E-Commerce Firms via Phishing ZIPs
Cybersecurity researchers have shed light on a new campaign that has likely targeted the Russian automobile and e-commerce sectors with a previously undocumented .NET malware dubbed CAPI Backdoor.According to Seqrite Labs, the attack chain involves distributing phishing emails containing a ZIP archive as a way to trigger the infection. The cybersecurity company’s analysis is based…
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Government considered destroying its data hub after decade-long intrusion
Tags: access, backdoor, breach, china, data, detection, endpoint, exploit, government, group, Hardware, incident response, infrastructure, network, risk, spy, supply-chain, threat, tool, vpn, vulnerabilityBridewell, a supplier to the UK government critical network infrastructure, endorsed the severity of this approach. He said, “it’s like when a device is compromised, the only way to truly be sure there are no remnants, or unidentified backdoors is to restore the asset to a known good state. In the physical realm, in particular…
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Cybersecurity Snapshot: F5 Breach Prompts Urgent U.S. Gov’t Warning, as OpenAI Details Disrupted ChatGPT Abuses
Tags: ai, attack, awareness, backdoor, breach, business, chatgpt, china, cisa, cloud, control, corporate, cve, cyber, cybersecurity, data, data-breach, defense, detection, exploit, framework, fraud, governance, government, group, hacker, incident, infrastructure, Internet, iran, law, LLM, malicious, malware, mitigation, monitoring, network, openai, organized, phishing, privacy, resilience, risk, russia, scam, security-incident, service, software, strategy, supply-chain, technology, threat, training, update, vulnerabilityF5’s breach triggers a CISA emergency directive, as Tenable calls it “a five-alarm fire” that requires urgent action. Meanwhile, OpenAI details how attackers try to misuse ChatGPT. Plus, boards are increasing AI and cyber disclosures. And much more! Key takeaways A critical breach at cybersecurity firm F5, attributed to a nation-state, has triggered an urgent…
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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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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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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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LinkPro Linux Rootkit Uses eBPF to Hide and Activates via Magic TCP Packets
An investigation into the compromise of an Amazon Web Services (AWS)-hosted infrastructure has led to the discovery of a new GNU/Linux rootkit dubbed LinkPro, according to findings from Synacktiv.”This backdoor features functionalities relying on the installation of two eBPF [extended Berkeley Packet Filter] modules, on the one hand to conceal itself, and on the other…
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Mysterious Elephant APT Campaign Targets South Asian Diplomacy, Steals WhatsApp Data with New MemLoader Backdoor
The post Mysterious Elephant APT Campaign Targets South Asian Diplomacy, Steals WhatsApp Data with New MemLoader Backdoor appeared first on Daily CyberSecurity. First seen on securityonline.info Jump to article: securityonline.info/mysterious-elephant-apt-campaign-targets-south-asian-diplomacy-steals-whatsapp-data-with-new-memloader-backdoor/
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Microsoft Halts Vanilla Tempest Cyberattack by Revoking Malicious Teams Installer Certificates
Microsoft has successfully disrupted a major cyberattack campaign orchestrated by the Vanilla Tempest threat group in early October 2025. The tech giant revoked over 200 fraudulent certificates that the cybercriminals had used to sign fake Microsoft Teams installation files, which were designed to deliver the Oyster backdoor and deploy Rhysida ransomware on victim systems. Discovery…
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Microsoft Halts Vanilla Tempest Cyberattack by Revoking Malicious Teams Installer Certificates
Microsoft has successfully disrupted a major cyberattack campaign orchestrated by the Vanilla Tempest threat group in early October 2025. The tech giant revoked over 200 fraudulent certificates that the cybercriminals had used to sign fake Microsoft Teams installation files, which were designed to deliver the Oyster backdoor and deploy Rhysida ransomware on victim systems. Discovery…
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China-Backed Flax Typhoon APT Maintained Year-Long Access by Turning ArcGIS SOE into Web Shell Backdoor
The post China-Backed Flax Typhoon APT Maintained Year-Long Access by Turning ArcGIS SOE into Web Shell Backdoor appeared first on Daily CyberSecurity. First seen on securityonline.info Jump to article: securityonline.info/china-backed-flax-typhoon-apt-maintained-year-long-access-by-turning-arcgis-soe-into-web-shell-backdoor/
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Chinese gang used ArcGIS as a backdoor for a year and no one noticed
Crims turned trusted mapping software into a hideout – no traditional malware required First seen on theregister.com Jump to article: www.theregister.com/2025/10/14/chinese_hackers_arcgis_backdoor/
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Backdoor MiniJunk und Stealer MiniBrowse – Iranische Gruppe greift Verteidigungs- und Luftfahrtindustrie in Europa an
Tags: backdoorFirst seen on security-insider.de Jump to article: www.security-insider.de/iranische-hackergruppe-nimbus-manticore-erweitert-angriffe-europa-a-10b405b20d7c842a2222ec14e364b7a5/