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:
- Token Jacking: Cybercriminals Could Be Stealing Your AI Resources
August 6, 2026
It’s three a.m., do you know what your AI agent is doing? Unit 42 has responded to a growing number of AI token jacking cases resulting in staggering financial losses. The financial loss comes from criminals gaining access to API keys used by legitimate developers for access to popular AI platforms. These keys are known ...
- TP-Link router owners update now — 15 flaws patched to stop hackers hijacking your devices
August 5, 2026
TP-Link has patched more than a dozen vulnerabilities across multiple business networking products which could have been chained to achieve remote code execution (RCE). Security researchers at Vedere Labs from Forescout found the flaws and published an in-depth report on the issues, which particularly affect TP-Link Omada, the company’s business networking platform for centrally managing enterprise and small-business ...
- How legitimate cloud platforms enable phishers to bypass MFA
August 4, 2026
Threat actors are increasingly exploiting legitimate cloud services to evade detection and streamline the deployment of their scam infrastructure. Cloud hosting services and decentralized networks have become primary platforms for hosting phishing pages and sites. Throughout 2025 and 2026, Kaspersky researchers have observed phishing operators steadily migrate toward platforms like Cloudflare Workers, Vercel, Netlify, GitHub ...
- Over 100,000 UK Police and staff have personal data leaked in attack on national database
August 4, 2026
The UK’s Police National Legal Database (PNLD) suffered a cyberattack recently, in which it allegedly lost sensitive data on more than 100,000 criminal justice professionals. In a short press release, PNLD confirmed the breach, saying it happened over a weekend. The threat actors, which were not named in the announcement, were said to have taken names, organizations, and ...
- CVE-2026-18577: N-able N-central Authentication Bypass Exploited in the Wild
August 4, 2026
On August 2, 2026, N-able published a security advisory for CVE-2026-18577, an authentication bypass vulnerability affecting N-central that was discovered being exploited in-the-wild after an incomplete fix for an earlier authentication bypass issue, CVE-2026-18556 was disclosed. CVE-2026-18577 allows a remote unauthenticated attacker to bypass authentication and obtain administrative control of vulnerable N-central servers in affected deployments. N-able N-central is a widely deployed Remote ...
- Hackers steal over $130M by exploiting bug in offline hardware wallets
August 4, 2026
Hackers are in the midst of a massive theft of cryptocurrency from supposedly secure offline hardware wallets, according to blockchain security firms monitoring the heists. At least a dozen different hackers are said to be targeting Bitcoin owners who use the hardware crypto wallet Coldcard, made by Coinkite. At this point, it’s unclear who is behind ...