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:
- Batavia spyware steals data from Russian organizations
July 7, 2025
Since early March 2025, our systems have recorded an increase in detections of similar files with names like договор-2025-5.vbe, приложение.vbe, and dogovor.vbe (translation: contract, attachment) among employees at various Russian organizations. The targeted attack begins with bait emails containing malicious links, sent under the pretext of signing a contract. The campaign began in July 2024 and ...
- BERT Ransomware Group Targets Asia and Europe on Multiple Platforms
July 7, 2025
In April, a new ransomware group known as BERT, has been observed targeting organizations across Asia and Europe. TrendResearch telemetry has confirmed the emergence and activity of this ransomware. This blog entry examines BERT’s tools and tactics across multiple variants. By comparing its different iterations, we unpack how the ransomware group operates, how their methods have ...
- NordDragonScan: Quiet Data-Harvester on Windows
July 7, 2025
FortiGuard Labs recently uncovered an active delivery site that hosts a weaponized HTA script and silently drops the infostealer “NordDragonScan” into victims’ environments. Once installed, NordDragonScan examines the host and copies documents, harvests entire Chrome and Firefox profiles, and takes screenshots. The package is then sent over TLS to its command-and-control server, “kpuszkiev.com,” which also serves ...
- Several major Linux distros hit by serious Sudo security flaws
July 7, 2025
Two vulnerabilities were recently spotted in various Linux distributions which, when chained together, allow local attackers to escalate their privileges and thus run arbitrary files. The vulnerabilities are tracked as CVE-2025-32462 (severity score 2.8/10 – low severity), and CVE-2025-32463 (severity score 9.3/10 critical), and were found in the Sudo command-line utility for Linux and other Unix-like ...
- Ingram Micro says ongoing outage caused by ransomware attack
July 7, 2025
Ingram Micro, a U.S. technology distributing giant and managed services provider, said on Monday a ransomware attack is the cause of an ongoing outage at the company. The hack began on Thursday, after which the company’s website and much of its network went down. Late on Saturday, the company said in a brief statement that it ...
- Australia’s Qantas says cyber criminal contacts one week after data breach
July 7, 2025
A cyber criminal has made contact with Australia’s Qantas following a data breach last week that exposed personal information of six million customers, a company spokesperson told Reuters on Tuesday. The hacker had targeted a call centre and gained access to a third-party customer service platform containing the customers’ names, email addresses, phone numbers, birth dates ...