Rapid7 tracked a set of Linux samples that blend into the software and device conventions of the telecom environments they target. The set spans a newly observed BPFDoor variant, a BPF Rekoobe build seen against South Korean targets, a dropper, and six builds of a Linux implant Rapid7 researchers track as AVERAT, deployed against Taiwanese appliances. Additionally, researchers provide source code details of the Rapid7 BPFDoor controller introduced in our April 2026 blog, Stealthy BPFDoor Variants are a Needle That Looks Like Hay.
The chain uses two binaries. A dropper writes a shell script to the appliance’s storage mount and executes it. The script stages both payloads into /sbin under the names ntpdate and udevds, launches them, and deletes each file ten seconds later while the processes continue running. One of those payloads is the dropper itself, re-executing as a resident watchdog, leaving both processes running without an on-disk image.
Read more…
Source: Rapid7 News
Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox
Related:
- Washington Post says it is among victims of cyber breach tied to Oracle software
November 6, 2025
The Washington Post said it is among victims of a sweeping cyber breach tied to Oracle software. In a statement released on Thursday, the newspaper said it was one of those impacted “by the breach of the Oracle E-Business Suite platform.” The paper did not provide further detail, but its statement comes after CL0P, the notorious ...
- Italian political consultant says he was targeted with Paragon spyware
November 6, 2025
Francesco Nicodemo, a consultant who works with left-wing politicians in Italy, has gone public as the latest person targeted with Paragon spyware in the country. On Thursday, Nicodemo said in a Facebook post that for 10 months, he preferred not to publicize his case because he “did not want to be used for political propaganda,” ...
- When Your Calendar Becomes the Compromise
November 6, 2025
It starts innocently enough. A new meeting appears in your Google calendar and the subject seems ordinary, perhaps even urgent: “Security Update Briefing,” “Your Account Verification Meeting,” or “Important Notice Regarding Benefits.” You assume you missed this invitation in your overloaded email inbox, and click “Yes” to accept. Unfortunately, calendar invites have become an overlooked delivery ...
- Apple patches 50 security flaws – update now
November 5, 2025
Apple has released security updates for iPhones, iPads, Macs, Apple Watches, Apple TVs, Safari, and Xcode, fixing nearly 50 security flaws. Some of these bugs could let cybercriminals see your private data, take control of parts of your device, or break key security protections. Installing these updates as soon as possible keeps your personal information—and everything ...
- Operation South Star: 0-day Espionage Campaign Targeting Domestic Mobile Phones
November 4, 2025
In recent years, during high-intensity confrontations with Advanced Persistent Threat (APT) groups from the Northeast Asia region, the RedDrip team at QiAnXin Threat Intelligence Center has discovered nearly 20 0day vulnerabilities involving domestic software. Some details have been disclosed in our public reports such as Operation DevilTiger, Operation ShadowTiger, and XSS 0day+Clickonce. In reality, 0day activities ...
- Phone location data of top EU officials available for sale
November 4, 2025
Journalists in Europe found it was “easy” to spy on top European Union officials using commercially obtained location histories sold by data brokers, despite the continent having some of the strongest data protection laws in the world. EU officials said they’re “concerned” about the trade of citizen and officials’ mobile phone location data, and have issued ...