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 professionals discovered, analyzed, and created defenses against the ICS malware framework before it was deployed, but expect the stakes to keep rising.
LemonDuck, a cross-platform cryptocurrency mining botnet, is targeting Docker to mine cryptocurrency on Linux systems as part of an active malware campaign
Docker APIs on Linux servers are being targeted by a large-scale Monero crypto-mining campaign from the operators of the Lemon_Duck botnet. [...]
A new set of phishing attacks delivering the more_eggs malware has been observed striking corporate hiring managers with bogus resumes as an infection vector, a year after potential candidates looking for work on LinkedIn were lured with weaponized job offers
Botnet infrastructure shut down last year, now central to a fast-spreading email scam, researchers say More than a year after essentially being shut down, the notorious Emotet malware operation is showing a strong resurgence.…
Cloud security is constantly evolving and consistently different than defending on-premises assets. Denonia, a recently discovered serverless cryptominer drives home the point.
Stuxnet was the first known malware built to attack operational technology environment. Since then, there have been several others.
Cyber-espionage gang using multiple variants of its custom backdoor to ensure persistence, Symantec warns A Russian-linked threat group that has almost exclusively targeted Ukraine since it first appeared on the scene in 2014 is deploying multiple variants of its malware payload on systems within the country.…
Threat analysts report the activity of the Russian state-sponsored threat group known as Gamaredon (Armageddon, Shuckworm), is still notably active in Ukrainian computer networks. [...]
Malware-laced recruitment emails are more Kim job ill than Kim Jong-un The North Korean-based criminal group Lazarus is expanding its attacks into the blockchain and crypto space, three agencies of the US government have warned.…
Three flaws present in consumer laptops can give attackers a way to drop highly persistent malware capable of evading methods to remove it, security vendor says.
The Emotet malware is having a burst in distribution and is likely to soon switch to new payloads that are currently detected by fewer antivirus engines. [...]
Threat analysts have spotted a new variant of the BotenaGo botnet malware, and it's the stealthiest seen so far, running undetected by any anti-virus engine. [...]
UAE reportedly using 'legal' malware on erstwhile allies Citizen Lab has reported finding suspected surveillance software on devices associated with both the UK Prime Minister's Office and what was formerly called the British Foreign and Commonwealth Office.…
Plus: HP fixes critical Teradici flaws, Karakurt may be a Conti side hustle, and info-stealing malware set free In Brief Microsoft will pay more — up to $26,000 more — for "high-impact" bugs in its Office 365 products via its bug bounty program.…
Hackers are luring unsuspecting users with a fake Windows 11 upgrade that comes with malware that steals browser data and cryptocurrency wallets. [...]
An 18-month-long analysis of the PYSA ransomware operation has revealed that the cybercrime cartel followed a five-stage software development cycle from August 2020, with the malware authors prioritizing features to improve the efficiency of its workflows
Cybersecurity researchers have disclosed a new version of the SolarMarker malware that packs in new improvements with the goal of updating its defense evasion abilities and staying under the radar
The Computer Emergency Response Team of Ukraine (CERT-UA) has warned of a new wave of social engineering campaigns delivering IcedID malware and leveraging Zimbra exploits with the goal of stealing sensitive information