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.
Security researchers found a new version of the Vultur banking trojan for Android that includes more advanced remote control capabilities and an improved evasion mechanism. [...]
Malicious ads and bogus websites are acting as a conduit to deliver two different stealer malware, including Atomic Stealer, targeting Apple macOS users
Hackers Are Now Using Code Repositories as Malware VectorsPython code repository PyPI temporarily halted new user registration for a second time in three months following a surge in malware-ridden code mimicking legitimate software packages. PyPI is not the only code repository to recently be attacked by hackers.
An infostealer malware campaign has reportedly collected millions of logins from users of various gaming websites, including players that use cheats, pay-to-cheat services. [...]
Outdated SOHO routers and IoT devices being hijacked by TheMoon to operate an anonymous hacker botnet service called Faceless.
The maintainers of the Python Package Index (PyPI) repository briefly suspended new user sign-ups following an influx of malicious projects uploaded as part of a typosquatting campaign
The Python Package Index (PyPI) has temporarily suspended user registration and the creation of new projects to deal with an ongoing malware campaign. [...]
A Linux version of a multi-platform backdoor called DinodasRAT has been detected in the wild targeting China, Taiwan, Turkey, and Uzbekistan, new findings from Kaspersky reveal
Sensitive documents dumped on leak site amid claims of 3 TB of data stolen in total NHS Scotland says it managed to contain a ransomware group's malware to a regional branch, preventing the spread of infection across the entire institution.…
Simply look out for libraries imagined by ML and make them real, with actual malicious code. No wait, don't do that In-depth Several big businesses have published source code that incorporates a software package previously hallucinated by generative AI.…
Threat actors are widely adopting the fast-growing, low-cost phishing-as-a-service (PhaaS) platform, which is sold via Telegram.
Indian government entities and energy companies have been targeted by unknown threat actors with an aim to deliver a modified version of an open-source information stealer malware called HackBrowserData and exfiltrate sensitive information in some cases by using Slack as command-and-control (C2)
A new phishing campaign has been observed leveraging a novel loader malware to deliver an information stealer and keylogger called Agent Tesla
A new, improved variant on the group's malware combines fileless infection, BYOVD, and more to cause havoc in virtual environments.
A new variant of "TheMoon" malware botnet has been spotted infecting thousands of outdated small office and home office (SOHO) routers and IoT devices in 88 countries. [...]
The Top.gg Discord bot community with over 170,000 members has been impacted by a supply-chain attack aiming to infect developers with malware that steals sensitive information. [...]
Google's new AI-powered 'Search Generative Experience' algorithms recommend scam sites that redirect visitors to unwanted Chrome extensions, fake iPhone giveaways, browser spam subscriptions, and tech support scams. [...]
ALSO: Viasat hack wiper malware is back, users are the number one cause of data loss, and critical vulns Infosec in brief If your Windows domain controllers have been crashing since a security update was installed earlier this month, there's no longer any need to speculate why: Microsoft has admitted it introduced a memory leak in its March patches and fixed the issue.…
A new large-scale StrelaStealer malware campaign has impacted over a hundred organizations across the United States and Europe, attempting to steal email account credentials. [...]