Coverage of named threat actors and intrusion sets examines reported incidents, infrastructure, disruption, and defensive guidance.
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Background for this topic.
Coverage under this tag concerns a named threat actor or intrusion set: an individual, group, or organized operation assessed to be responsible for malicious cyber activity. Reports may describe incidents, malware, attack infrastructure, disruption efforts, or analyst assessments. Attribution is often provisional, so actor names and reported links should be treated as intelligence judgments rather than established identity, nationality, sponsorship, or motive.
For defenders, such reporting can help connect incidents and prioritize monitoring, but indicators and techniques may be reused or become obsolete. Validate reported infrastructure, hashes, and behaviors against local telemetry; use confirmed weaknesses to guide vulnerability remediation and access controls. If activity is suspected, preserve relevant logs and evidence, contain affected accounts or systems, and coordinate investigation without relying on an actor label alone.
Cybereason found that 78% of organizations who paid a ransom demand were hit by a second ransomware attack, often by the same threat actor
Healthcare tech provider Change Healthcare says a suspected nation-state threat actor breached its systems, causing pharmacy transaction delays nationwide.
A recently open-sourced network mapping tool called SSH-Snake has been repurposed by threat actors to conduct malicious activities
A threat actor is using an open-source network mapping tool named SSH-Snake to look for private keys undetected and move laterally on the victim infrastructure. [...]
The China-linked threat actor known as Mustang Panda has targeted various Asian countries using a variant of the PlugX (aka Korplug) backdoor dubbed DOPLUGS
ESET researchers reveal a Russian threat actor has targeted Ukrainian citizens with PYSOPs messages warning of impacts such as food and medicine shortages from the war
It now takes threat actors on average just 62 minutes to move laterally from initial access, Crowdstrike claims
Cybersecurity researchers have unearthed a new influence operation targeting Ukraine that leverages spam emails to propagate war-related disinformation
The U.K. National Crime Agency (NCA) on Tuesday confirmed that it obtained LockBit's source code as well as intelligence pertaining to its activities and their affiliates as part of a dedicated task force called Operation Cronos
The North Korean state-sponsored threat actors have been attributed to a cyber espionage campaign targeting the defense sector across the world
A critical security flaw in the Bricks theme for WordPress is being actively exploited by threat actors to run arbitrary PHP code on susceptible installations
Threat actors operating with interests aligned to Belarus and Russia have been linked to a new cyber espionage campaign that likely exploited cross-site scripting (XSS) vulnerabilities in Roundcube webmail servers to target over 80 organizations
The Iranian-origin threat actor known as Charming Kitten has been linked to a new set of attacks aimed at Middle East policy experts with a new backdoor called BASICSTAR by creating a fake webinar portal