Coverage of named threat actors and intrusion sets examines reported incidents, infrastructure, disruption, and defensive guidance.
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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.
Online sellers are targeted in a new campaign to push the Vidar information-stealing malware, allowing threat actors to steal credentials for more damaging attacks. [...]
Spanish-speaking users in Latin America have been at the receiving end of a new botnet malware dubbed Horabot since at least November 2020
Harvard Pilgrim Health Care (HPHC) has disclosed that a ransomware attack it suffered in April 2023 impacted 2,550,922 people, with the threat actors also stealing their sensitive data from compromised systems. [...]
Cisco Talos said the threat actor behind the campaign is believed to be located in Brazil
Trend Micro said the motives of Void Rabisu seem to have changed since at least October 2022
The threat actors behind BlackCat ransomware have come up with an improved variant that prioritizes speed and stealth in an attempt to bypass security guardrails and achieve their goals
Cybersecurity researchers have offered a closer look at the RokRAT remote access trojan that's employed by the North Korean state-sponsored actor known as ScarCruft
A threat actor known as Spyboy is promoting a Windows defense evasion tool called "Terminator" on the Russian-speaking forum RAMP (short for Russian Anonymous Marketplace). [...]
A financially motivated threat actor is actively scouring the internet for unprotected Apache NiFi instances to covertly install a cryptocurrency miner and facilitate lateral movement
Microsoft has shared details of a now-patched flaw in Apple macOS that could be abused by threat actors with root access to bypass security enforcements and perform arbitrary actions on affected devices
Finding threat actors before they find you is key to beefing up your cyber defenses. How to do that efficiently and effectively is no small task – but with a small investment of time, you can master threat hunting and save your organization millions of dollars
The threat actor known as Dark Pink has been linked to five new attacks aimed at various entities in Belgium, Brunei, Indonesia, Thailand, and Vietnam between February 2022 and April 2023
The threat actors behind RomCom RAT are leveraging a network of fake websites advertising rogue versions of popular software at least since July 2022 to infiltrate targets
Enterprise security firm Barracuda on Tuesday disclosed that a recently patched zero-day flaw in its Email Security Gateway (ESG) appliances had been abused by threat actors since October 2022 to backdoor the devices
A database for the notorious RaidForums hacking forums has been leaked online, allowing threat actors and security researchers insight into the people who frequented the forum. [...]
Void Rabisu, a malicious actor believed to be associated with the RomCom backdoor, was thought to be driven by financial gain because of its ransomware attacks. But in this blog entry, we discuss how the use of the RomCom backdoor in recent attacks shows how Void Rabisu's motives seem to have changed since at least October 2022.
Unit 42 researchers observed that a wave of malicious campaigns, all deployed by the same threat actor, have been using IZ1H9 since November 2021
New report provides actionable intelligence about attacks, threat actors, and campaigns.
A new phishing technique called "file archiver in the browser" can be leveraged to "emulate" a file archiver software in a web browser when a victim visits a .ZIP domain