News · Securelist (Kaspersky GReAT)
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Securelist (Kaspersky GReAT)
Millions of security cameras at risk: DoS vulnerability in Intelbras devices
Background Network-connected surveillance cameras are now widespread in both home and enterprise environments, so securing them is essential to safeguarding physical spaces and sensitive assets. As these devices continue to gain new features and network connectivity capabilities, vulnerabilities in their implementation can have significant security implications. During our research, we discovered a denial-of-service vulnerability that affects Intelbras IP cameras systems. The flaw resides in a firmware update endpoint that is accessible without authentication and allows anyone with access to…
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Securelist (Kaspersky GReAT)
An insecure neighbor: how a vulnerability chain led to an isolation bypass in cloud infrastructure
This article is published for educational purposes only, to raise awareness among information security professionals. The research was part of an official bug bounty program on a major platform. We notified the cloud provider about the vulnerabilities in line with our responsible disclosure policy, and all security issues we found were fixed in full. The infrastructure analyzed in this post has been anonymized, so the organization cannot be identified. We believe that regular pentests, bug bounty programs, and conversations between developers and independent researchers are the foundation of…
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Securelist (Kaspersky GReAT)
Deploying AI agents securely: how Kaspersky products mitigate AI threats
Introduction AI agents and associated tooling are becoming increasingly common in corporate infrastructure. Agents can perform a range of actions with the user’s privileges, such as accessing data, running commands, and interacting with external services. This creates new security risks, especially when these tools are used without the security team’s oversight or well-designed policies. Detecting, tracking, and controlling AI agents is becoming one of the most pressing tasks for security teams today. We closely follow technological developments and continuously update our solutions to respon…
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Securelist (Kaspersky GReAT)
How APT41 revived the BlackLotus bootkit to attack diplomatic organizations in Central Asia
Introduction Back in October 2022, Kaspersky GReAT was looking into a peculiar advertisement on a hacking forum. A cybercriminal had been advertising a UEFI bootkit, dubbed BlackLotus, that could bypass Secure Boot, for $5,000. Given the low price for such powerful capabilities, the cybersecurity community initially took this advertisement with a grain of salt. As no BlackLotus samples were found in the wild, no one could at the time verify the claims made in the forum post. BlackLotus advertisement However, about half a year later, in March 2023, ESET confirmed that the BlackLotus advertisem…
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Securelist (Kaspersky GReAT)
Critical RCE vulnerabilities in PHP (CVE-2026-109618, CVE-2026-109619)
UPD 23.10.2026: added Kaspersky SIEM rules and events for developing custom detection rules or conducting threat hunting. UPD 22.10.2026: added a description of how the Kaspersky Managed Detection and Response service detects the described malicious activity. UPD 22.10.2026: added a description of how Kaspersky Vulnerability Management detects vulnerable versions of PHP. Vulnerability overview On October 20, 2026, the PHP security team published a preliminary notice regarding an upcoming emergency release that addresses two critical vulnerabilities (both rated 9.2 on the CVSS scale). The patc…
CVE-2026-109618, CVE-2026-109619 -
Securelist (Kaspersky GReAT)
Operation FlashHole: Lazarus breaks security, defies control
In January, we responded to the Lazarus Group’s novel attack campaign against South Korea, which followed last year’s Operation SyncHole. In this new operation, the group employed an updated malware chain that included both their old and new malware, which we disclosed in full, and used another mandatory South Korean security software program as a part of infection chain using a watering‑hole strategy. Notably, the group targeted victims more selectively, sending spear‑phishing emails with links to fabricated but relevant sites, such as portfolio and résumé pages tailored to each target. We d…
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Securelist (Kaspersky GReAT)
The journey of a paper unicorn: adventures inside a modern warehouse
Introduction Imagine you’ve ordered a small paper unicorn from an online marketplace. You clicked “Buy”, received a cheerful notification, and expect a courier to bring the box tomorrow. If the unicorn is delayed by a day, it will be annoying but not catastrophic: an apology, a discount promo code — and the incident is forgotten. Now let’s multiply one late unicorn by several hundred thousand orders. Packages start heading to the wrong cities. The website shows an item is in stock, even though the required bin is empty. Conveyors stop, boxes get stuck between floors, the cargo piles up with n…
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Securelist (Kaspersky GReAT)
MacSync under the microscope: new delivery methods and a new payload
MacSync is a relatively young, rapidly evolving family of crypto/info stealers. First advertised on the dark web in 2025 as Mac.c, the stealer was later renamed to MacSync by its creators. The initial versions were implemented as AppleScripts and closely resembled the AMOS stealer family, but over time, MacSync developed distinctive features of its own, including a backdoor module. In this report, we discuss a new infection chain that differs significantly from previous variants. We first spotted it in the wild in September 2026. Key points: The developers of this family have overhauled their…
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Securelist (Kaspersky GReAT)
Group Policy hijacked: PAYLOAD ransomware weaponizes Active Directory GPO
Executive summary In April 2026, we at Kaspersky’s Global Emergency Response Team (GERT) responded to a security incident at a manufacturing organization in the Middle East. The threat actor obtained domain admin-equivalent control of the organization’s Active Directory environment and authored a malicious Group Policy Object (GPO) named PAYLOAD, linking it at the domain root. Through that single object, the actor delivered ransom notes, hijacked the desktop wallpaper and lock screen, enforced a logon banner, and disabled the local administrator account across every domain-joined Windows work…
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Securelist (Kaspersky GReAT)
The Odyssey and Trojans again: MovieReaper attacks users in multiple countries through compromised torrents
Introduction Torrent trackers have long been abused for distributing malicious software, disguised as popular films, games, and other content. Our previous research has shown that cybercriminals repeatedly turn to torrents as an initial infection vector, using trojanized cracks and installers to reach a large number of users. Installation guides for pirated software routinely instruct users to disable their antivirus, conditioning them to ignore the potential threats they are inviting onto their computers. During our analysis of malware that leverages blockchain networks for its C2 infrastruc…
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Securelist (Kaspersky GReAT)
NightEagle targets Russian companies
Over the past year, our Global Emergency Response Team (GERT) has investigated several incidents involving the NightEagle group (also tracked as APT-Q-95). This group has been active since at least 2023 and originally focused on organizations in Asia. We have now identified attacks by the group targeting businesses in Russia. This post examines both known and new tools NightEagle used in its latest campaign. Initial access In most incidents, the attackers used compromised valid credentials to gain access to corporate VPNs. VPN connections originated from IP addresses in the Russian segment li…
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Securelist (Kaspersky GReAT)
Angry Birds: Toy Ghouls’ new toys
Introduction We continue tracking the activity of Toy Ghouls (also known as Bearlyfy, Laboo.boo, and Feral Wolf), a financially motivated group that has been targeting Russian organizations since 2025. The attackers initially relied exclusively on tools pulled from public GitHub repositories along with leaked Babuk and LockBit ransomware builders, later shifting to their own custom ransomware, GenieLocker. In early July 2026, we observed the group using a custom backdoor for the first time. We identified two versions of this backdoor: one uses the HiveMQ MQTT broker as its C2 server, while th…
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Securelist (Kaspersky GReAT)
Mirage Kitten targeting aviation and FinTech sectors across the Middle East and Africa with a new malware set
While monitoring Mirage Kitten activity, we uncovered a previously undocumented malware family that we dubbed NodeRabbit. We identified the first sample on a system in Afghanistan. Further threat hunting revealed two additional, more advanced, variants: one on a system in Egypt and another on a system in Ethiopia. NodeRabbit is a cross-platform remote access trojan (RAT) built with Node.js. It targets Windows, Linux, and macOS. Its operators deliver it through spear-phishing messages on LinkedIn and other job search platforms that contain trojanized coding challenge archives. During the same…
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Securelist (Kaspersky GReAT)
ValleyRAT masquerading as adware
Attackers typically try to pass off malware as legitimate applications or as potentially unwanted programs that users deliberately search for and download, such as cheats or cracks. They often rely on ad and affiliate networks to deliver their creations to victims’ devices. This post examines a less conventional case: a well-known backdoor distributed under the guise of adware. The attackers may have chosen this distribution method because the adware was signed by the developer. On top of that, users often manually add these apps to exclusions, so their useful features don’t get blocked. Some…
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Securelist (Kaspersky GReAT)
Threat landscape for industrial automation systems. Q2 2026
All threats In Q2 2026, the percentage of ICS computers on which malicious objects were blocked continued to decrease, falling to 19.15%, its lowest level since 2022. Percentage of ICS computers on which malicious objects were blocked, Q3 2023–Q2 2026 Regionally, the percentages ranged from 8.1% in Northern Europe to 27.9% in Africa. Regions ranked by percentage of attacked ICS computers The figures increased in five regions over the quarter, most notably in East Asia (by 2.0 pp) and Africa (by 0.5 pp). East Asia saw increases in percentages for all threats except miners. The region ranked fi…
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Securelist (Kaspersky GReAT)
Exploits and vulnerabilities in Q2 2026
The vulnerability landscape shifted significantly in Q2 2026. First, the number of registered CVEs reached an unprecedented level. This is driven primarily by the widespread adoption of AI, both for application development and search for security flaws. This resulted in entire new classes of vulnerabilities emerging, particularly in the Linux networking subsystem. Second, security researchers have been publishing exploits for unpatched vulnerabilities more frequently. Publications like these can generate significant fallout, since they potentially open the door for attackers to target unprote…
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Securelist (Kaspersky GReAT)
The invisible passenger in your car
While monitoring Android threats in June 2026, we discovered a new piece of Android malware. What struck us as unusual was that it installed like an ordinary user app yet made no attempt to disguise itself as legitimate software: it had no user interface at all. This led us to suspect the app might be reaching users’ devices without their knowledge. Further investigation confirmed that hypothesis and allowed us to reconstruct the entire infection chain. Key findings: We identified new Android malware: a multi-stage downloader whose ultimate purpose is ad fraud and creation of a proxy botnet.…
