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.
Organizations in the Middle East, Africa, and the U.S. have been targeted by an unknown threat actor to distribute a new backdoor called Agent Racoon
A Russian national has been found guilty in connection with his role in developing and deploying a malware known as TrickBot, the U.S. Department of Justice (DoJ) announced
Cybersecurity researchers have disclosed a new sophisticated Android malware called FjordPhantom that has been observed targeting users in Southeast Asian countries like Indonesia, Thailand, and Vietnam since early September 2023
The U.S. Department of Justice (DOJ) and the FBI recently collaborated in a multinational operation to dismantle the notorious Qakbot malware and botnet. While the operation was successful in disrupting this long-running threat, concerns have arisen as it appears that Qakbot may still pose a danger in a reduced form. This article discusses the aftermath of the takedown, provides mitigation
A suspected Chinese-speaking threat actor has been attributed to a malicious campaign that targets the Uzbekistan Ministry of Foreign Affairs and South Korean users with a remote access trojan called SugarGh0st RAT
An Android malware campaign targeting Iranian banks has expanded its capabilities and incorporated additional evasion tactics to fly under the radar
The North Korean threat actors behind macOS malware strains such as RustBucket and KANDYKORN have been observed "mixing and matching" different elements of the two disparate attack chains, leveraging RustBucket droppers to deliver KANDYKORN