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 big news this week is that the Conti ransomware gang has recruited the core developers and managers of the TrickBot group, the developers of the notorious TrickBot malware. [...]
After four years of activity and numerous takedown attempts, the death knell of TrickBot has sounded as its top members move under new management, the Conti ransomware syndicate, who plan to replace it with the stealthier BazarBackdoor malware. [...]
Numerous Windows machines located in South Korea have been targeted by a botnet tracked as PseudoManuscrypt since at least May 2021 by employing the same delivery tactics of another malware called CryptBot
Kraken has already spread like wildfire, but in the past few months, the malware's author has been tinkering away, adding more infostealers and backdoors.
Public and private sector both under attack as malware evolution accelerates SonicWall's annual cyber-threat report shows ransomware-spreading miscreants are making hay and getting quicker at doing so.…
Threat actors are infiltrating the increasingly popular collaboration app to attach malicious files to chat threads that drop system-hijacking malware.
Security researchers warn that some attackers are compromising Microsoft Teams accounts to slip into chats and spread malicious executables to participants in the conversation. [...]
The notorious TrickBot malware is targeting customers of 60 financial and technology companies, including cryptocurrency firms, primarily located in the U.S., even as its operators have updated the botnet with new anti-analysis features
Cybersecurity researchers have detailed the inner workings of ShadowPad, a sophisticated and modular backdoor that has been adopted by a growing number of Chinese threat groups in recent years, while also linking it to the country's civilian and military intelligence agencies
Since 2017, the attacker has flung simple off-the-shelf malware in malicious email campaigns aimed at aviation, aerospace, transportation and defense.
For years, a low-skilled attacker has been using off-the-shelf malware in malicious campaigns aimed at companies in the aviation sector as well as in other sensitive industries. [...]
Entities in the aviation, aerospace, transportation, manufacturing, and defense industries have been targeted by a persistent threat group since at least 2017 as part of a string of spear-phishing campaigns mounted to deliver a variety of remote access trojans (RATs) on compromised systems
CrowdStrike report warns that threat actors are getting smarter at evasion
A new version of the MyloBot malware has been observed to deploy malicious payloads that are being used to send sextortion emails demanding victims to pay $2,732 in digital currency
35K+ players were exposed to an auto-updater that planted a trojan that choked performance for fellow modders and Colossal Order employees.