HelloNet campaign — new malicious modules launched through the ViPNet update system
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We identified targeted infection attempts against large Russian organizations using the ViPNet update system (a software suite for creating secure networks).
Kaspersky SIEM
Kaspersky SIEM is an еnterprise-grade integrated solution which empowers SOC analysts with the full visibility, context, and tools needed to respond efficiently and uncover previously unknown threats.
Use cases in real-world incidents:
The SOC Files: ScreenConnect masked as freeware. An inside look at a large-scale campaign
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updated UPD
Kaspersky experts have uncovered a malicious network infrastructure for delivering AsyncRAT. The Trojan is dropped via compromised ScreenConnect software. In this post, we break down the infection chain and analyze the C2 infrastructure.
MiniPlasma: detecting exploitation of a critical unpatched Windows vulnerability
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Over the past two months, the anonymous researcher Nightmare Eclipse has publicly released six Windows vulnerabilities complete with ready-to-use exploits, without prior coordination with Microsoft. The most critical of these is MiniPlasma.
DAEMON Tools software infected — supply chain attack ongoing since April 8, 2026
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updated UPD
Targeted by threat actors: individuals and organizations across 100+ countries and territories, with the majority of victims located in Russia, Brazil, Turkey, Spain, Germany, France, Italy, and China.
Information about the Copy Fail vulnerability, which allows attackers to gain root access on virtually any modern Linux distribution
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updated UPD
The vulnerability affects kernels released between 2017 and 2026. Both outdated server configurations and modern distributions are at risk: Ubuntu, RHEL etc.
![On April 9, 2026, the website cpuid[.]com, hosting installers for popular system administration software CPU-Z, HWMonitor (HWMonitor Pro) and Perfmonitor 2, was compromised. We observed that starting from approximately April 9, 15:00 UTC, until about April 10, 10:00 UTC, the legitimate download URLs for installers of that software have been replaced with URLS to the following malicious websites:](https://media.kasperskycontenthub.com/wp-content/uploads/sites/43/2026/04/10145014/pingpongsuperman_CPU_is_burning_ultra_detailed_sharp_focus_8k_495f9cb6-fa56-4ea8-ad14-88d8c7c8805a_3-gigapixel-redefine-creative-2x-800x450.jpeg){kind=tracking}
CPU-Z / HWMonitor watering hole infection – a copy-pasted attack
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updated UPD
In April 2026, cpuid.com delivered trojanized CPU-Z and HWMonitor installers with STX RAT. 150+ victims in Brazil, Russia, China.
The Notepad++ supply chain attack — unnoticed execution chains and new IoCs
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updated UPD
Kaspersky GReAT experts discovered previously undocumented infection chains used in the Notepad++ supply chain attacks. The article provides new IoCs related to those incidents which employ DLL sideloading and Cobalt Strike Beacon delivery.
Reports
ToddyCat: your hidden email assistant. Part 2
An in-depth analysis of Umbrij, a new tool used by the ToddyCat APT group to compromise corporate email communications in Gmail. The attack targeted OAuth authorization tokens, allowing threat actors to gain access to Google services.
Cloud Atlas activity in the second half of 2025 and early 2026: new tools and a new payload
Cloud Atlas attacks the public sector and diplomatic structures of Russia and Belarus, using ReverseSocks, SSH, and Tor for persistence in infected systems and its new tool, PowerCloud.
Kimsuky targets organizations with PebbleDash-based tools
Kaspersky researchers analyze a range of new PebbleDash-based tools used in recent Kimsuky campaigns and reveal their connection to the AppleSeed malware cluster.
OceanLotus suspected of using PyPI to deliver ZiChatBot malware
Kaspersky researchers uncovered malicious wheel packages in PyPI that targeted both Windows and Linux and contained a dropper delivering malware dubbed ZiChatBot. We attribute this activity to OceanLotus APT.
