Gaming the system: how a Chinese-speaking actor turned Brazilian government sites into an SEO weapon
Gaming the system: how a Chinese-speaking actor turned Brazilian government sites into an SEO weapon. The tradecraft points to a Chinese-speaking cybercrime group connected to Earth Berberoka, an actor first documented targeting gambling sites...
What happened
Gaming the system: how a Chinese-speaking actor turned Brazilian government sites into an SEO weapon. The tradecraft points to a Chinese-speaking cybercrime group connected to Earth Berberoka, an actor first documented targeting gambling sites across Asia. Research by: Amit Yardeni Key Points Introduction Since mid-2025, Check Point Research has tracked a sustained campaign against Brazilian organizations.
Threat reporting can develop quickly as vendors, governments and affected organizations publish new indicators and technical findings.
Editorial note: this News Brief follows the available evidence and adds length only when additional facts or useful context are available. Where public reporting does not establish a specific victim sequence, CyberDeltaForce does not present one as fact.
What the reporting and advisory establish
Research by: Amit Yardeni Key Points Introduction Since mid-2025, Check Point Research has tracked a sustained campaign against Brazilian organizations.
Once inside a victim, the group deploys a broad Linux toolkit: a custom downloader, several backdoors,
Gaming the system: how a Chinese-speaking actor turned Brazilian government sites into an SEO weapon
What this means for your environment
Move from the published facts to the technical path, exposure conditions and defensive decisions that matter in a real environment.
Attack & Exploitation Path
The sequence below reconstructs the intrusion from the stages supported by public reporting. Undisclosed transitions remain explicitly marked rather than inferred.
Not publicly disclosed in the available reporting; CyberDeltaForce does not infer an entry method without evidence.
malware, a backdoor, loader, web shell or another persistent access mechanism is identified in the intrusion.
Validate the reported access path against identity, endpoint, network and cloud telemetry; contain confirmed footholds; remove exposed credentials or persistence; and prioritize the earliest stage where your controls can reliably break the chain.
Why this matters to you
Policy and regulatory changes can alter reporting duties, security expectations and compliance timelines. Security and legal teams should determine whether the update changes an existing obligation or introduces a new control requirement.
Does this deserve attention in my environment?
Check the conditions below against your use of the affected technology or service.
Select the conditions that are true in your environment. Leaving a condition unselected does not mean you are safe — it only means you have not marked it as applicable.
- Check whether the organizations, technologies or suppliers in the story are relevant to your environment.
- Review the retained primary source and any vendor or government guidance before changing controls.
- Increase monitoring if the reporting indicates active exploitation, material disruption or a threat path you use.
What remains unconfirmed
- Who was responsible has not yet been confirmed publicly.
Sources & References
Original reporting and technical references are kept here for readers who want to verify the facts. Publisher names stay out of the reading flow above.