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:
- Pakistan: Severe Cyber Attack at Dewan Farooque Motors Corrupts Data and Crashes Servers
November 30, 2024
A cyber-attack crippled Dewan Farooque Motors Limited (DFML), corrupting key corporate data and crashing servers. The Pakistan Stock Exchange (PSX) received notice of the incident on Friday. DFML told stakeholders that restoring its information systems and financial data, including information from the first quarter ending September 30, 2024, will be a lengthy process. Read more… Source: ProPakistan News Sign ...
- Another background check company suffered data breach with over 600,000 people details exposed
November 29, 2024
Another background check company suffered a data breach; this time, more than 600,000 people were affected. It’s a minor breach compared with the 2.9 billion people hit by the National Public Data hack, but it’s still scary. The company in question, SL Data Services, was discovered online. It was publicly exposed and not password-protected or encrypted. ...
- SonicWall Releases Security Updates for SMA100 NetExtender for Windows (CVE-2024-29014)
November 27, 2024
SonicWall has released a security update addressing a vulnerability in the Windows (32 and 64-bit) versions of SonicWall SMA100 NetExtender. SMA100 NetExtender is a virtual private network (VPN) client. This vulnerability tracked as CVE-2024-29014, may allow an attacker to execute arbitrary code when processing an EPC Client update. CVE-2024-29014 was originally assigned a CVSSv3 score of ...
- TaxOff: um, you’ve got a backdoor…
November 27, 2024
In Q3 2024, the Positive Technologies Expert Security Center (PT ESC) TI Department discovered a series of attacks on Russian government agencies. PT ESC researchers were unable to establish any connection with known groups using the same techniques. The main goal was espionage and gaining a foothold to follow through on further attacks. They dubbed the group ...
- Ransomware attack on Blue Yonder disrupts Starbucks, Sainsbury’s, Morrisons
November 27, 2024
Starbucks has confirmed that a ransomware attack on software supplier Blue Yonder has disrupted its internal systems for managing employee schedules and tracking work hours. The incident has primarily affected Starbucks’ North American operations, including approximately 11,000 stores across the United States and Canada. Starbucks says the cyberattack has compromised its ability to track baristas’ hours ...
- Russia-linked hackers exploited Firefox and Windows bugs in ‘widespread’ hacking campaign
November 26, 2024
Security researchers have uncovered two previously unknown zero-day vulnerabilities that are being actively exploited by RomCom, a Russian-linked hacking group, to target Firefox browser users and Windows device owners across Europe and North America. Researchers with security firm ESET say they found evidence that RomCom combined use of the two zero-day bugs — described as such ...