The Malware tag covers malware families, infrastructure analysis, incident impact, disruption efforts, and defensive guidance to reduce cybersecurity risk.
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Background for this topic.
Malware is software intentionally created or modified to perform unauthorized or harmful actions on a computer, device, or network. The term covers distinct families and functions, including viruses, worms, trojans, spyware, botnet clients, and ransomware; a single sample may combine several capabilities. Its behavior—not its label—determines the security concern: it may execute code, persist, alter or encrypt data, steal credentials, or provide unauthorized remote access.
For practitioners, malware reporting is most useful when it identifies the family or tool conservatively and provides evidence such as affected platforms, samples, infrastructure, or observed behavior. Defenses include promptly patching vulnerable software, restricting execution and privileges, monitoring endpoints and networks, maintaining tested backups, and isolating suspected systems for analysis. Detection should use behavior and verified indicators rather than names alone, since variants change. If malware processes personal or regulated data, investigations should also address privacy, evidence preservation, and applicable reporting obligations.
Cybersecurity researchers have discovered an ongoing phishing campaign that makes use of a unique attack chain to deliver the XWorm malware on targeted systems
As many as five security flaws have been disclosed in Netgear RAX30 routers that could be chained to bypass authentication and achieve remote code execution
A previously undocumented and mostly undetected variant of a Linux backdoor called BPFDoor has been spotted in the wild, cybersecurity firm Deep Instinct said in a technical report published this week
A new, stealthier variant of the Linux malware 'BPFDoor' has been discovered, featuring more robust encryption and reverse shell communications. [...]
The threat is coming from inside the supply chain Black Hat Asia Threat groups have infected millions of Androids worldwide with malicious firmware before the devices have even been shipped from their manufacturers, according to Trend Micro researchers at Black Hat Asia.…
New samples of the RapperBot botnet malware have added cryptojacking capabilites to mine for cryptocurrency on compromised Intel x64 machines. [...]
A recently spotted malvertising campaign tricked users with an in-browser Windows update simulation to deliver the Aurora information stealing malware. [...]
Cybercriminals used Snake to retrieve confidential documents related to international relations
Government organizations in Central Asia are the target of a sophisticated espionage campaign that leverages a previously undocumented strain of malware dubbed DownEx
The U.S. government on Tuesday announced the court-authorized disruption of a global network compromised by an advanced malware strain known as Snake wielded by Russia's Federal Security Service (FSB)
Operation "Medusa" disabled Turla's Snake malware with an FBI-created tool called Perseus.
Perseus to the rescue as Snake eats itself The FBI has cut off a network of Kremlin-controlled computers used to spread the Snake malware which, according to the Feds, has been used by Russia's FSB to steal sensitive documents from NATO members for almost two decades.…
A new malware botnet named 'AndoryuBot' is targeting a critical-severity flaw in the Ruckus Wireless Admin panel to infect unpatched Wi-Fi access points for use in DDoS attacks. [...]
Microsoft has released security updates to address a Secure Boot zero-day vulnerability exploited by BlackLotus UEFI malware to infect fully patched Windows systems. [...]
Microsoft has released security updates to address a Secure Boot zero-day vulnerability exploited by BlackLotus UEFI malware to infect fully patched Windows systems. [...]
Cybersecurity and intelligence agencies from all Five Eyes member nations took down the infrastructure used by the Snake cyber-espionage malware operated by Russia's Federal Security Service (FSB). [...]
For years, hackers could have tricked enterprises into downloading malware by simply de-capitalizing letters.
Plus: Court-ordered domain seizures of DDoS-for-hire sites Intel is investigating reports that BootGuard private keys, used to protect PCs from hidden malware, were leaked when data belonging to Micro-Star International (MSI) was stolen and dumped online. …
ReconShark, aimed at gaining initial access to targeted systems, is a component of previous malware used by the Kimsuky group.
An ongoing phishing campaign with invoice-themed lures is being used to distribute the SmokeLoader malware in the form of a polyglot file, according to the Computer Emergency Response Team of Ukraine (CERT-UA)