Tag: antivirus
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Rhysida ransomware exploits Microsoft certificate to slip malware past defenses
Identifying forensic signals: The campaigns that leverage trusted certificates undermine the trust model enterprises rely on. Signed malware bypasses app-allow lists, browser warnings, OS checks, and antivirus assumptions about signed code. When the file poses as Teams or PuTTY, employees don’t hesitate to download it as it looks normal.”Once inside, the malware runs with fewer…
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Black Friday Cloud-Speicher-Angebot von Internxt: Lebenslanger Cloud-Speicher, VPN, Antivirus und mehr!
Der Black Friday ist einmal im Jahr eine einmalige Gelegenheit für ein Schnäppchen. Den Cloud-Anbieter Internxt gibt es zum Sionderpreis! First seen on tarnkappe.info Jump to article: tarnkappe.info/advertorial/black-friday-cloud-speicher-angebot-von-internxt-lebenslanger-cloud-speicher-vpn-antivirus-und-mehr-322408.html
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Black Friday Cloud-Speicher-Angebot von Internxt: Lebenslanger Cloud-Speicher, VPN, Antivirus und mehr!
Der Black Friday ist einmal im Jahr eine einmalige Gelegenheit für ein Schnäppchen. Den Cloud-Anbieter Internxt gibt es zum Sionderpreis! First seen on tarnkappe.info Jump to article: tarnkappe.info/advertorial/black-friday-cloud-speicher-angebot-von-internxt-lebenslanger-cloud-speicher-vpn-antivirus-und-mehr-322408.html
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Black Friday Cloud-Speicher-Angebot von Internxt: Lebenslanger Cloud-Speicher, VPN, Antivirus und mehr!
Der Black Friday ist einmal im Jahr eine einmalige Gelegenheit für ein Schnäppchen. Den Cloud-Anbieter Internxt gibt es zum Sionderpreis! First seen on tarnkappe.info Jump to article: tarnkappe.info/advertorial/black-friday-cloud-speicher-angebot-von-internxt-lebenslanger-cloud-speicher-vpn-antivirus-und-mehr-322408.html
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Cyber agencies produce ‘long overdue’ best practices for securing Microsoft Exchange Server
The guidance: The guidance states admins should treat on-prem Exchange servers as being “under imminent threat,” and itemizes key practices for admins:First, it notes, “the most effective defense against exploitation is ensuring all Exchange servers are running the latest version and Cumulative Update (CU)”;It points out that Microsoft Exchange Server Subscription Edition (SE) is the…
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Cyber agencies produce ‘long overdue’ best practices for securing Microsoft Exchange Server
The guidance: The guidance states admins should treat on-prem Exchange servers as being “under imminent threat,” and itemizes key practices for admins:First, it notes, “the most effective defense against exploitation is ensuring all Exchange servers are running the latest version and Cumulative Update (CU)”;It points out that Microsoft Exchange Server Subscription Edition (SE) is the…
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Microsoft stoppt Ransomware-Angriffe auf Teams-Nutzer
Eine Ransomware-Bande hat gefälschte MS Teams-Installationsprogramme verwendet, um Nutzer anzugreifen.Durch die zunehmende Verbreitung von Remote-Work geraten Collaboration-Tools immer wieder in das Visier von Cyberkriminellen. Microsoft entdeckte vor kurzem eine Angriffskampagne der Ransomware-Bande Vanilla Tempest, die auf gefälschten Teams-Installationsprogrammen basiert. Die Angreifer verwendeten dazu imitierte MSTeamsSetup.exe-Dateien, die auf bösartigen Domains gehostet wurden. Ziel war es, ahnungslose…
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GhostBat RAT Android Malware Poses as Fake RTO Apps to Steal Banking Data from Indian Users
The GhostBat RAT campaign leverages diverse infection vectors”, WhatsApp, SMS with shortened URLs, GitHub-hosted APKs, and compromised websites”, to distribute malicious Android droppers. Once installed, these droppers employ multi-stage workflows, deliberate ZIP header manipulation, and heavy string obfuscation to evade antivirus detection and reverse”engineering. The threat actors utilize native libraries (.so) to dynamically resolve API…
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GhostBat RAT Android Malware Poses as Fake RTO Apps to Steal Banking Data from Indian Users
The GhostBat RAT campaign leverages diverse infection vectors”, WhatsApp, SMS with shortened URLs, GitHub-hosted APKs, and compromised websites”, to distribute malicious Android droppers. Once installed, these droppers employ multi-stage workflows, deliberate ZIP header manipulation, and heavy string obfuscation to evade antivirus detection and reverse”engineering. The threat actors utilize native libraries (.so) to dynamically resolve API…
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EDR-Freeze: Technical Mechanics and Forensic Artifacts Exposed
EDR-Freezeis a proof-of-concept tool that forces endpoint detection and response (EDR) or antivirus processes into a temporary “coma.” Instead of installing a vulnerable driver, it leverages legitimate Windows Error Reporting components, specifically WerFaultSecure.exe and the MiniDumpWriteDump API to pause security processes from user mode. By racing threads at just the right moment, EDR-Freeze suspends all…
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EDR-Freeze: Technical Mechanics and Forensic Artifacts Exposed
EDR-Freezeis a proof-of-concept tool that forces endpoint detection and response (EDR) or antivirus processes into a temporary “coma.” Instead of installing a vulnerable driver, it leverages legitimate Windows Error Reporting components, specifically WerFaultSecure.exe and the MiniDumpWriteDump API to pause security processes from user mode. By racing threads at just the right moment, EDR-Freeze suspends all…
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New QR Code-Based Quishing Attack Targets Microsoft Users
A sophisticated quishing campaign leveraging weaponized QR codes has been uncovered, specifically targeting Microsoft users with seemingly innocuous document review requests. By exploiting advanced evasion techniques”, splitting the QR code into two separate images, using non-standard color palettes, and drawing the code directly via PDF content streams”, attackers are able to bypass traditional antivirus and…
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New ‘Fully Undetectable’ Android RAT Discovered on GitHub
Hosted at the repository “Huckel789/Android-RAT,” this fully undetectable (FUD) RAT is designed to evade antivirus detection permanently, maintain persistence in battery-optimized environments, and deliver a feature-rich command-and-control (C2C) experience entirely from a web interface. This Android RAT sets itself apart by eliminating the traditional requirement for a desktop or laptop in the attack chain. A…
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Asgard Malware Protector Reversed: Researchers Expose Its Antivirus Bypass Methods
SpyCloud Labs analysts have successfully reverse-engineered Asgard Protector, a sophisticated crypter tool prominently used to hide malicious payloads from antivirus detection systems. This crypter has gained particular notoriety for being the preferred choice among sellers of LummaC2, currently the most prevalent commodity infostealer in the cyberthreat landscape. The analysis reveals intricate evasion techniques that demonstrate the evolving…
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Chinese APT group Phantom Taurus targets gov and telecom organizations
mssq.bat that connects to an SQL database using the sa (system administrator) ID with a password previously obtained by the attackers. It then performs a dynamic search for specific keywords specified in the script, saving the results as a CSV file.”The threat actor used this method to search for documents of interest and information related…
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6 Best Enterprise Antivirus Software Choices
We reviewed the leading enterprise antivirus and EDR tools and found SentinelOne Singularity to be the best overall, followed closely by Microsoft Defender and CrowdStrike Falcon. The post 6 Best Enterprise Antivirus Software Choices appeared first on TechRepublic. First seen on techrepublic.com Jump to article: www.techrepublic.com/article/best-antivirus-software/
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New ModStealer Evades Antivirus, Targets macOS Users to Steal Sensitive Data
A sophisticated new malware strain targeting macOS users has emerged, capable of bypassing traditional antivirus solutions while specifically targeting developers and cryptocurrency holders. The cross-platform threat, dubbed ModStealer, represents the latest evolution in macOS-focused cybercrime, highlighting the growing security challenges facing Apple users in 2024. ModStealer was first identified by cybersecurity firm Mosyle and reported through…
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Agentic AI der neue Horror für Sicherheitsentscheider?
Tags: ai, antivirus, api, breach, ciso, compliance, cyberattack, cybersecurity, cyersecurity, detection, governance, law, mail, malware, monitoring, risk, service, supply-chain, tool, vulnerabilityKI ist mittlerweile in den meisten Unternehmen gesetzt. Im Trend liegen aktuell vor allem Systeme mit autonomen Fähigkeiten bei denen die potenziellen Sicherheitsrisiken besonders ausgeprägt sind.KI-Agenten werden im Unternehmensumfeld immer beliebter und zunehmend in Workflows und Prozesse integriert. Etwa in den Bereichen Softwareentwicklung, Kundenservice und -Support, Prozessautomatisierung oder Employee Experience. Für CISOs und ihre Teams…
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Hackers Deploy New EDR-Freeze Tool to Disable Security Software
A security researcher has released a new tool that can temporarily disable endpoint detection and response (EDR) systems and antivirus software without requiring vulnerable drivers, marking a significant evolution in attack techniques targeting security solutions. Advanced Evasion Through Windows Components The tool, dubbed EDR-Freeze and developed by researcher TwoSevenOneT, exploits Windows Error Reporting functionality to suspend security…
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Sophos Threat-Hunter-Analyse: Neue Ransomware-Gruppe sorgt für Aufsehen
Darüber hinaus umging die Gruppe eine EDR-Lösung mithilfe der BYOVD-Technik (Bring Your Own Vulnerable Driver). Konkret setzten sie einen anfälligen Baidu-Antivirus-Treiber (umbenannt in googleApiUtil64.sys) ein, der das Beenden beliebiger Prozesse erlaubt (CVE-2024-51324) und damit auch den Stopp des EDR-Agenten. First seen on infopoint-security.de Jump to article: www.infopoint-security.de/sophos-threat-hunter-analyse-neue-ransomware-gruppe-sorgt-fuer-aufsehen/a42049/
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HybridPetya Crypto-Locker Outsmarts UEFI Secure Boot
Malware Not Yet Deployed in the Wild, Says Eset. New malware dubbed HybridPetya spotted on VirusTotal is adding to steadily growing pile of bootkits, creating more opportunities for hackers to infect desktops before the operating system and antivirus programs load. No telemetry exists showing HybridPetya has been deployed in the wild. First seen on govinfosecurity.com…
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‘Gentlemen’ Ransomware Abuses Vulnerable Driver to Kill Security Gear
By weaponizing the ThrottleStop.sys driver, attackers are disrupting antivirus and endpoint detection and response (EDR) systems. First seen on darkreading.com Jump to article: www.darkreading.com/vulnerabilities-threats/gentlemen-ransomware-vulnerable-driver-security-gear
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AI-Enhanced Malware Sports Super-Stealthy Tactics
With legit sounding names, EvilAI’s productivity apps are reviving classic threats like Trojans while adding new evasion capabilities against modern antivirus defenses. First seen on darkreading.com Jump to article: www.darkreading.com/cyberattacks-data-breaches/ai-backed-malware-hits-companies-worldwide
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ChillyHell macOS Malware: Three Methods of Compromise and Persistence
A new wave of macOS-targeted malware has emerged under the radar”, despite employing advanced process reconnaissance and maintaining successful notarization status for years. Jamf Threat Labs recently uncovered a developer-signed sample on VirusTotal that used sophisticated endpoint profiling and established persistence using several different mechanisms. The malware, dubbed ChillyHell, has evaded popular antivirus detections even…
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Windows Defender Vulnerability Lets Hackers Hijack and Disable Services Using Symbolic Links
A newly demonstrated attack technique has revealed a flaw in how Windows Defender manages its update and execution mechanism. By exploiting symbolic links, attackers can hijack Defender’s service folders, gain full control over its executables, and even disable the antivirus entirely. How the Exploit Works Windows Defender stores its executables inside versioned folders underProgramData\Microsoft\Windows Defender\Platform.…
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SHARED INTEL QA: Is your antivirus catching fresh threats, or just echoing VirusTotal?
In cybersecurity, trust often hinges on what users think their software is doing, versus what’s actually happening under the hood. Related: Eddy Willem’s ‘Borrowed Brains’ findings Take antivirus, for example. Many users assume threat detection is based on proprietary… (more”¦) First seen on securityboulevard.com Jump to article: securityboulevard.com/2025/09/shared-intel-qa-is-your-antivirus-catching-fresh-threats-or-just-echoing-virustotal/
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SHARED INTEL QA: Is your antivirus catching fresh threats, or just echoing VirusTotal?
In cybersecurity, trust often hinges on what users think their software is doing, versus what’s actually happening under the hood. Related: Eddy Willem’s ‘Borrowed Brains’ findings Take antivirus, for example. Many users assume threat detection is based on proprietary… (more”¦) First seen on securityboulevard.com Jump to article: securityboulevard.com/2025/09/shared-intel-qa-is-your-antivirus-catching-fresh-threats-or-just-echoing-virustotal/
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SHARED INTEL QA: Is your antivirus catching fresh threats, or just echoing VirusTotal?
In cybersecurity, trust often hinges on what users think their software is doing, versus what’s actually happening under the hood. Related: Eddy Willem’s ‘Borrowed Brains’ findings Take antivirus, for example. Many users assume threat detection is based on proprietary… (more”¦) First seen on securityboulevard.com Jump to article: securityboulevard.com/2025/09/shared-intel-qa-is-your-antivirus-catching-fresh-threats-or-just-echoing-virustotal/
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New Malware Exploits Windows Character Map to Evade Defender and Mine Crypto
A sophisticated cryptojacking campaign that hijacks Windows’ native Character Map utility (“charmap.exe”) to evade Windows Defender and covertly mine cryptocurrency on compromised machines. First detected in late August 2025, this attack exploits legitimate system binaries to load a custom cryptomining payload directly into memory, thwarting traditional antivirus signatures and curtailing forensic artifacts. Security researchers have…
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Colombian Malware Exploits SWF and SVG to Evade Detection
A sophisticated malware campaign targeting Colombian institutions through an unexpected vector: weaponized SWF and SVG files that successfully evade traditional antivirus detection. The discovery emerged through VirusTotal’s newly enhanced Code Insight platform, which added support for analyzing these vector-based file formats just as attackers began exploiting them to impersonate the Colombian justice system. Despite Adobe…