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.
Weekly headline count for the current query.
Hackers are exploiting a recently disclosed critical vulnerability (CVE-2026-48558) in SimpleHelp to deploy Djinn Stealer, a previously undocumented cross-platform information stealer targeting Windows, macOS, and Linux. [...]
Hackers are exploiting an authentication bypass vulnerability (CVE-2026-35616) in FortiClient Enterprise Management Server (EMS) to deliver an undocumented credential stealer called EKZ. [...]
A new Mirai-based malware campaign is actively exploiting CVE-2025-29635, a high-severity command-injection vulnerability affecting D-Link DIR-823X routers, to enlist devices into the botnet. [...]
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has released new details about RESURGE, a malicious implant used in zero-day attacks exploiting CVE-2025-0282 to breach Ivanti Connect Secure devices. [...]
The RondoDox botnet has been observed exploiting the critical React2Shell flaw (CVE-2025-55182) to infect vulnerable Next.js servers with malware and cryptominers. [...]
A ransomware gang exploited the critical React2Shell vulnerability (CVE-2025-55182) to gain initial access to corporate networks and deployed the file-encrypting malware less than a minute later. [...]
The RondoDox botnet malware is now exploiting a critical remote code execution (RCE) flaw in XWiki Platform tracked as CVE-2025-24893. [...]
An advanced threat actor exploited the critical vulnerabilities "Citrix Bleed 2" (CVE-2025-5777) in NetScaler ADC and Gateway, and CVE-2025-20337 affecting Cisco Identity Service Engine (ISE) as zero-days to deploy custom malware. [...]
Researchers have released a report detailing how a recent WinRAR path traversal vulnerability tracked as CVE-2025-8088 was exploited in zero-day attacks by the Russian 'RomCom' hacking group to drop different malware payloads. [...]
A recently fixed WinRAR vulnerability tracked as CVE-2025-8088 was exploited as a zero-day in phishing attacks to install the RomCom malware. [...]
Hackers were spotted exploiting a critical SAP NetWeaver vulnerability tracked as CVE-2025-31324 to deploy the Auto-Color Linux malware in a cyberattack on a U.S.-based chemicals company. [...]
WinRAR has addressed a directory traversal vulnerability tracked as CVE-2025-6218 that, under certain circumstances, allows malware to be executed after extracting a malicious archive. [...]
Security researchers have disclosed a new Secure Boot bypass tracked as CVE-2025-3052 that can be used to turn off security on PCs and servers and install bootkit malware. [...]
A new variant of the Mirai-based botnet malware Aquabot has been observed actively exploiting CVE-2024-41710, a command injection vulnerability in Mitel SIP phones. [...]
A deceptive proof-of-concept (PoC) exploit for CVE-2024-49113 (aka "LDAPNightmare") on GitHub infects users with infostealer malware that exfiltrates sensitive data to an external FTP server. [...]
Ivanti is warning that a new Connect Secure remote code execution vulnerability tracked as CVE-2025-0282 was exploited in zero-day attacks to install malware on appliances. [...]
The recently uncovered 'Bootkitty' UEFI bootkit, the first malware of its kind targeting Linux systems, exploits CVE-2023-40238, aka 'LogoFAIL,' to infect computers running on a vulnerable UEFI firmware. [...]
Unknown attackers have deployed a newly discovered backdoor dubbed Msupedge on a university's Windows systems in Taiwan, likely by exploiting a recently patched PHP remote code execution vulnerability (CVE-2024-4577). [...]
The North Korean APT hacking group Kimsuky is exploiting ScreenConnect flaws, particularly CVE-2024-1708 and CVE-2024-1709, to infect targets with a new malware variant dubbed ToddlerShark. [...]
The North Korean APT hacking group Kimsuky is exploiting ScreenConnect flaws, particularly CVE-2024-1708 and CVE-2024-1709, to infect targets with a new malware variant dubbed ToddleShark. [...]