During the first week of October, Kaspersky took part in the 34th Virus Bulletin International Conference, one of the longest-running cybersecurity events. There, Kaspersky researchers delivered multiple presentations, and one of our talks focused on newly observed activities by the Careto threat actor, which is also known as “The Mask”.
The Mask APT is a legendary threat actor that has been performing highly sophisticated attacks since at least 2007. Their targets are usually high-profile organizations, such as governments, diplomatic entities and research institutions. To infect them, The Mask uses complex implants, often delivered through zero-day exploits. The last time Kaspersky published their findings about The Mask was in early 2014, and since then, they have been unable to discover any further traces of this actor.
Read more…
Source: Kaspersky
Related:
- Muddying the Tracks: The State-Sponsored Shadow Behind Chaos Ransomware
May 6, 2026
Researchers at Rapid7 say that they have spotted what they believe was an Iranian intelligence cyber unit masquerading as the Chaos ransomware gang to hide a state-sponsored espionage operation. The intrusion was spotted earlier this year, and investigators say breadcrumbs left behind give them “medium confidence” in saying it was the work of MuddyWater, which has ...
- DOJ says ransomware gang tapped into Russian government databases
May 6, 2026
A U.S. court has sentenced Latvian hacker Deniss Zolotarjovs to more than eight years in prison following his conviction for carrying out ransomware attacks. The Justice Department accused the hacker of working for a notorious Russian ransomware gang called Karakurt, which was led by former leaders of the Akira and Conti ransomware gangs, who were sanctioned ...
- Critical Buffer Overflow in Palo Alto Networks PAN-OS User-ID Authentication Portal (CVE-2026-0300)
May 6, 2026
On May 6, 2026, Palo Alto Networks published a security advisory for CVE-2026-0300, a critical unauthenticated buffer overflow vulnerability affecting PAN-OS PA-Series and VM-Series firewall appliances. Prisma Access, Cloud NGFW, and Panorama appliances are not affected by this vulnerability. The vulnerability carries a CVSSv4 score of 9.3 and has been confirmed as exploited in the wild ...
- Update WhatsApp now: Two new flaws could expose you to malicious files
May 5, 2026
Meta has published a new security advisory for messaging app WhatsApp, announcing patches for two vulnerabilities. WhatsApp has fixed two security flaws that could be abused to interfere with how media and attachments are handled on your device. There is no evidence that either bug has been exploited in the wild. These bugs don’t automatically infect ...
- DAEMON Tools software compromised with a malicious payload
May 5, 2026
In early May 2026, Kaspersky researchers identified installers of the DAEMON Tools software, used for mounting disk images, to be compromised with a malicious payload. These installers are distributed from the legitimate website of DAEMON Tools and are signed with digital certificates belonging to DAEMON Tools developers. Kaspersky analysis revealed that the software installers have been ...
- Trellix confirms data breach after hack of ‘a portion’ of its source code
May 5, 2026
Cybersecurity giant Trellix has confirmed suffering a cyberattack in which threat actors accessed parts of its source code. In a brief announcement published on its website, Trellix said it had identified “unauthorized access to a portion of source code repository”. As soon as it spotted the intrusion, the company brought in third-party security experts to ...