The Malware tag covers malware families, infrastructure analysis, incident impact, disruption efforts, and defensive guidance to reduce cybersecurity risk.
Search across headline titles and summaries.
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.
A recently fixed WinRAR vulnerability tracked as CVE-2025-8088 was exploited as a zero-day in phishing attacks to install the RomCom malware. [...]
The threat actors behind the SocGholish malware have been observed leveraging Traffic Distribution Systems (TDSs) like Parrot TDS and Keitaro TDS to filter and redirect unsuspecting users to sketchy content
Also: Samourai Wallet Co-Founders' Guilty Plea, Coinbase Loss From Data TheftThis week, Tornado Cash co-founder convicted, Samourai Wallet guilty plea, Coinbase insider data theft, a U.S. court overturned an OpenSea executive's fraud conviction, AI-written malware stole crypto, Credix exploit, CZ sought dismissal of FTX claim, July hacks and a FinCEN crypto ATM warning.
A new Microsoft AI agent, named Project Ire, is able to autonomously classify malware at a global scale with a high level of precision
Indications of compromise and Sigma rules report for your security scanners amid ongoing 'ToolShell' blitz CISA has published a malware analysis report with compromise indicators and Sigma rules for "ToolShell" attacks targeting specific Microsoft SharePoint Server versions.…
Cybersecurity researchers have discovered a set of 11 malicious Go packages that are designed to download additional payloads from remote servers and execute them on both Windows and Linux systems
Inskit Researchers Uncover Clusters in Hungary, Saudi ArabiaSecurity researchers uncovered a previously unseen malware cluster associated with Israeli spyware maker Candiru. The company may have rebranded itself to evade sanctions to continue its operations. It continues to operate despite its inclusion in 2021 onto an exports blacklist by the United States.
Project Ire promises to use LLMs to detect whether code is malicious or benign Microsoft has rolled out an autonomous AI agent that it claims can detect malware without human assistance.…
CISA Lists Flaws as Actively ExploitedHackers are actively exploiting years-old flaws in obsolete Wi-Fi cameras and video recorders made by D-Link, warn U.S. cybersecurity authorities. Possibly Chinese hackers have used one of the flaws to implant HiatusRAT malware. "Attackers don’t care if a vulnerability is new or old."
CISA Lists Flaws as Actively ExploitedHackers are actively exploiting years-old flaws in obsolete Wi-Fi cameras and video recorders made by D-Link, warn U.S. cybersecurity authorities. Possibly Chinese hackers have used one of the flaws to implant HiatusRAT malware. "Attackers don’t care if a vulnerability is new or old."
Adversaries are prioritizing stealth over scale, according to OPSWAT’s latest Threat Landscape Report
ControlVault3 firmware vulnerabilities impacting over 100 Dell laptop models can allow attackers to bypass Windows login and install malware that persists across system reinstalls. [...]
Microsoft on Tuesday announced an autonomous artificial intelligence (AI) agent that can analyze and classify software without assistance in an effort to advance malware detection efforts
The Computer Emergency Response Team of Ukraine (CERT-UA) has warned of cyber attacks carried out by a threat actor called UAC-0099 targeting government agencies, the defense forces, and enterprises of the defense-industrial complex in the country
Some pinpointed software nasties but were suspicious of printer drivers too Researchers from the Universities of Guelph and Waterloo have discovered exactly how users decide whether an application is legitimate or malware before installing it – and the good news is they're better than you might expect, at least when primed to expect malware.…
A combination of propagation methods, narrative sophistication, and evasion techniques enabled the social engineering tactic known as ClickFix to take off the way it did over the past year, according to new findings from Guardio Labs
Cybersecurity researchers have lifted the veil on a widespread malicious campaign that's targeting TikTok Shop users globally with an aim to steal credentials and distribute trojanized apps
'Plague' malware has been around for months without tripping alarms Researchers at German infosec services company Nextron Threat have spotted malware that creates a highly-persistent Linux backdoor and say antivirus engines do not flag the code as malicious.…
PXA Stealer pilfers data from nearly 40 browsers, including Chrome More than 4,000 victims across 62 countries have been infected by stealthy infostealers pilfering people's passwords, credit card numbers, and browser cookies, which are then sold to other criminals on Telegram-based marketplaces.…
Russian Intelligence Tied to SSL Stripping Attacks Designed for EavesdroppingRussian intelligence since 2024 has been using their country's internet service providers to run adversary-in-the-middle attacks designed to infect diplomats inside the country's borders with intelligence-gathering malware, Microsoft warns.