perfctl: A Stealthy Malware Targeting Millions of Linux Servers

Aqua Cloud Native Blog

Expert insight, best practices and advice on cloud native security, trends, threat intelligence and compliance.

perfctl: A Stealthy Malware Targeting Millions of Linux Servers
Security Threat
In this blog post, Aqua Nautilus researchers aim to shed light on a Linux malware that, over the past 3-4 years, has actively sought more than 20,000 types of misconfigurations in order to target and exploit Linux servers. If you have a Linux server connected to the internet, you could be at risk. In fact, …
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In the past couple of days there has been many troubling publications and discussions about a mysterious critical Linux vulnerability allowing remote code execution. While this headline is very alarming, after diving into details there are many preconditions that cool down the level of alertness. Aqua Security researchers have looked into the content that was …
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You’ve likely heard of Schrödinger’s Cat from quantum mechanics—both alive and dead until the box is opened. This paradox mirrors a critical risk in modern development: the secrets embedded in your code. You might assume they’re long deleted, but until you examine the depths of commit history, you can’t be certain. Recently, Aqua Nautilus team …
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SECURITY RESEARCH
Sink or Swim: Tackling 2024’s Record-Breaking Vulnerability Wave
28,821 — that’s the number of vulnerabilities reported last year alone. With over 28,000 CVEs this year so far, 2024 is on track to set an even more troubling record. As cloud native technologies have become the backbone of modern IT infrastructure, these staggering figures highlight a growing and urgent threat. In this blog, we’ll …
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Introducing VEX Hub:The Solution to Vulnerability Fatigue
VEX (Vulnerability eXploitability Exchange) is an emerging industry standard for communicating the relevance and impact of security vulnerabilities on software artifacts. This approach allows software maintainers to indicate when a specific vulnerability in a software dependency is irrelevant to their software due to the specific use case of that dependency. By conveying this crucial information …
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Hadooken Malware Targets Weblogic Applications
Aqua Nautilus researchers identified a new Linux malware targeting Weblogic servers. The main payload calls itself Hadooken which we think is referring to the attack “surge fist” in the Street Fighter series. When Hadooken is executed, it drops a Tsunami malware and deploys a cryptominer. In this blog, we explain the malware, its components, and …
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Embracing the Future: AWS Customers Leverage Fargate for ECS and EKS Deployments
As organizations advance in their cloud native journey, the adoption of AWS Fargate for ECS (Elastic Container Service) and EKS (Elastic Kubernetes Service) increases. Many customers begin their cloud journey with Amazon ECS, with around 65% of new AWS container customers opting for ECS. This popularity is driven by Fargate’s serverless compute engine, which allows …
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PG_MEM: A Malware Hidden in the Postgres Processes
Aqua Nautilus researchers have uncovered PG_MEM, a new PostgreSQL malware, that brute forces its way into PostgreSQL databases, delivers payloads to hide its operations, and mines cryptocurrency. In this blog, we explain this attack, the techniques used by the threat actor, and how to detect and protect your environments.
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During February 2024, we discovered critical vulnerabilities in six AWS services. The impact of these vulnerabilities range between remote code execution (RCE), full-service user takeover (which might provide powerful administrative access), manipulation of AI modules, exposing sensitive data, data exfiltration and denial of service. 
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In this blog, we introduce TrailShark, a plugin that connects Wireshark with AWS CloudTrail logs. This open-source tool was developed as part of the “Bucket Monopoly” research, during which we identified six vulnerabilities in AWS by tracking service interactions and internal API calls. These vulnerabilities range from remote code execution (RCE) and full-service user takeover …
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Aqua Security is the pioneer in securing containerized cloud native applications from development to production. Aqua's full lifecycle solution prevents attacks by enforcing pre-deployment hygiene and mitigates attacks in real time in production, reducing mean time to repair and overall business risk. The Aqua Platform, a Cloud Native Application Protection Platform (CNAPP), integrates security from Code to Cloud, combining the power of agent and agentless technology into a single solution. With enterprise scale that doesn’t slow development pipelines, Aqua secures your future in the cloud. Founded in 2015, Aqua is headquartered in Boston, MA and Ramat Gan, IL protecting over 500 of the world’s largest enterprises.
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