13 matches found
BPFDoor-controller-source
BPFDoor-controller-source Source code to recent BPFDoor's controller variant Original: 2eacc8d91b9829b9606a7945fc5311fb5876cfb42ffccc1b91f61841237b04c1 Fixed: bpfdoorcontroller.c Original to fixed helper: formatfix.py Compile: $ apt install libssl-dev $ gcc -Wno-implicit-function-declaration...
Linux Backdoors Impersonate Email Security Tools to Evade Detection in Korea and Taiwan
Linux backdoors targeting telecom and network appliances in South Korea and Taiwan have been disguising their traffic as email services and seemingly legitimate processes to blend in and evade detection. Threat actors are known to name their malicious software after a legitimate operating system...
SMTP is the key: BPFDoor and AVERAT hitting the network edge
Overview 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 we track ...
China-Linked Red Menshen Uses Stealthy BPFDoor Implants to Spy via Telecom Networks
A long-term and ongoing campaign attributed to a China-nexus threat actor has embedded itself in telecom networks to conduct espionage against government networks. The strategic positioning activity, which involves implanting and maintaining stealthy access mechanisms within critical environments...
New BPFDoor Controller Enables Stealthy Lateral Movement in Linux Server Attacks
Cybersecurity researchers have unearthed a new controller component associated with a known backdoor called BPFDoor as part of cyber attacks targeting telecommunications, finance, and retail sectors in South Korea, Hong Kong, Myanmar, Malaysia, and Egypt in 2024. "The controller could open a...
Detecting BPFDoor Backdoor Variants Abusing BPF Filters
An analysis of advanced persistent threat APT group Red Menshen’s different variants of backdoor BPFDoor as it evolves since it was first documented in 2021...
New Stealthy Variant of Linux Backdoor BPFDoor Emerges from the Shadows
A previously undocumented and mostly undetected variant of a Linux backdoor called BPFDoor has been spotted in the wild, cybersecurity firm Deep Instinct said in a technical report published this week. "BPFDoor retains its reputation as an extremely stealthy and difficult-to-detect malware with...
New Stealthy Variant of Linux Backdoor BPFDoor Emerges from the Shadows
A previously undocumented and mostly undetected variant of a Linux backdoor called BPFDoor has been spotted in the wild, cybersecurity firm Deep Instinct said in a technical report published this week. "BPFDoor retains its reputation as an extremely stealthy and difficult-to-detect malware with...
Here’s a Simple Script to Detect the Stealthy Nation-State BPFDoor
In this blog, the Qualys Research Team explains the mechanics of a Linux malware variant named BPFdoor. We then demonstrate the efficacy of Qualys Custom Assessment and Remediation to detect it, and Qualys Multi-Vector EDR to protect against it. BPFDoor is a Linux/Unix backdoor that allows threat...
New Linux Malware Framework Lets Attackers Install Rootkit on Targeted Systems
A never-before-seen Linux malware has been dubbed a "Swiss Army Knife" for its modular architecture and its capability to install rootkits. This previously undetected Linux threat, called Lightning Framework by Intezer, is equipped with a plethora of features, making it one of the most intricate...
Quick and Simple: BPFDoor Explained
BPFDoor isn't new to the cyberattack game — in fact, it's gone undetected for years — but PwC researchers discovered the piece of malware in 2021. Subsequently, the cybersecurity community is learning more about the stealthy nature of malware, how it works, and how it can be prevented. What's...
