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.
The identity of the second threat actor behind the Golden Chickens malware has been uncovered courtesy of a fatal operational security blunder, cybersecurity firm eSentire said
Two malicious packages discovered in the npm package repository have been found to conceal an open source information stealer malware called TurkoRat
Malicious Google Search ads for generative AI services like OpenAI ChatGPT and Midjourney are being used to direct users to sketchy websites as part of a BATLOADER campaign designed to deliver RedLine Stealer malware
The rising geopolitical tensions between China and Taiwan in recent months have sparked a noticeable uptick in cyber attacks on the East Asian island country
The notorious cryptojacking group tracked as 8220 Gang has been spotted weaponizing a six-year-old security flaw in Oracle WebLogic servers to ensnare vulnerable instances into a botnet and distribute cryptocurrency mining malware
The threat actors behind the CopperStealer malware resurfaced with two new campaigns in March and April 2023 that are designed to deliver two novel payloads dubbed CopperStealth and CopperPhish
A new ransomware-as-service (RaaS) operation called MichaelKors has become the latest file-encrypting malware to target Linux and VMware ESXi systems as of April 2023
Poorly managed Microsoft SQL (MS SQL) servers are the target of a new campaign that's designed to propagate a category of malware called CLR SqlShell that ultimately facilitates the deployment of cryptocurrency miners and ransomware