From South America to Southeast Asia: The Fragile Web of REF7707
REF7707 targeted a South American foreign ministry using novel malware families. Inconsistent evasion tactics and operational security missteps exposed additional adversary-owned infrastructure.
Linux Detection Engineering - Approaching the Summit on Persistence Mechanisms
Building on foundational concepts and techniques explored in the previous publications, this post discusses some creative and/or complex persistence mechanisms.
Announcing the Elastic Bounty Program for Behavior Rule Protections
Elastic is launching an expansion of its security bounty program, inviting researchers to test its SIEM and EDR rules for evasion and bypass techniques, starting with Windows endpoints. This initiative strengthens collaboration with the security community, ensuring Elastic’s defenses remain robust against evolving threats.
Linux Detection Engineering - A Continuation on Persistence Mechanisms
This document continues the exploration of Linux detection engineering, emphasizing advancements in monitoring persistence mechanisms. By building on past practices and insights, it provides a roadmap for improving detection strategies in complex environments.
Detonating Beacons to Illuminate Detection Gaps
Learn how Elastic Security leveraged open-source BOFs to achieve detection engineering goals during our most recent ON week.
Under the SADBRIDGE with GOSAR: QUASAR Gets a Golang Rewrite
Elastic Security Labs share details about the SADBRIDGE loader and GOSAR backdoor, malware used in campaigns targeting Chinese-speaking victims.
Declawing PUMAKIT
PUMAKIT is a sophisticated loadable kernel module (LKM) rootkit that employs advanced stealth mechanisms to hide its presence and maintain communication with command-and-control servers.
Katz and Mouse Game: MaaS Infostealers Adapt to Patched Chrome Defenses
Elastic Security Labs breaks down bypass implementations from the infostealer ecosystem’s reaction to Chrome 127's Application-Bound Encryption scheme.
Tricks and Treats: GHOSTPULSE’s new pixel-level deception
The updated GHOSTPULSE malware has evolved to embed malicious data directly within pixel structures, making it harder to detect and requiring new analysis and detection techniques.
Cups Overflow: When your printer spills more than Ink
Elastic Security Labs discusses detection and mitigation strategies for vulnerabilities in the CUPS printing system, which allow unauthenticated attackers to exploit the system via IPP and mDNS, resulting in remote code execution (RCE) on UNIX-based systems such as Linux, macOS, BSDs, ChromeOS, and Solaris.
Betting on Bots: Investigating Linux malware, crypto mining, and gambling API abuse
The REF6138 campaign involved cryptomining, DDoS attacks, and potential money laundering via gambling APIs, highlighting the attackers' use of evolving malware and stealthy communication channels.
Code of Conduct: DPRK’s Python-fueled intrusions into secured networks
Investigating the DPRK’s strategic use of Python and carefully crafted social engineering, this publication sheds light on how they breach highly secure networks with evolving and effective cyber attacks.