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Cyber Threat
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Ransomware victim Energy

noblecorp.net

Listed by Yurei on · organisation based in Switzerland

noblecorp.net

Disclosed
Sep 9, 2025
Leak-site listing date
Threat group
Yurei
3 victims listed
Country
Switzerland
#13 most targeted
Sector
Energy

ThreatAI analysis

Compiled from this incident record and the threat intelligence profile for Yurei. Figures and technique mappings are quoted from the source data, not inferred.

About the Yurei group

Yurei is a ransomware group first observed in September 2025 whose payload is a minimally modified fork of the open-source Prince-Ransomware, using ChaCha20 encryption and propagating across SMB shares, primarily targeting food manufacturing, transportation, and IT sectors in Sri Lanka and Nigeria. Yurei has listed 3 victims since September 2025.

Incident analysis

noblecorp.net was listed by Yurei ransomware, a group with 3 victims recorded in this database. The listing appeared on the group's leak site on September 9, 2025.

noblecorp.net is based in Switzerland and operates in the Energy sector. Switzerland ranks #13 worldwide for ransomware disclosures, with 224 victims in this database.

Sector context. Energy sector attacks can have critical infrastructure implications. Ransomware on operational technology (OT) networks can disrupt power generation and distribution, elevating the urgency of recovery.

Yurei typically follows a double extortion model: data is exfiltrated from the victim's systems before files are encrypted, so the victim faces two demands at once — pay to restore access, and pay to keep stolen data unpublished. The leak site, where this listing appeared, is the lever for the second demand.

Source. Public leak-site disclosures aggregated via the ransomware.live API. The disclosure date is when the listing was published, which can differ from the date of compromise. This site does not publish or link to stolen data. Last updated .

Frequently asked questions

Was noblecorp.net attacked by ransomware?

Yes. noblecorp.net was listed as a victim of the Yurei ransomware group on September 9, 2025. The organisation is based in Switzerland and operates in the Energy sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked noblecorp.net?

noblecorp.net was attacked by Yurei ransomware. Yurei is one of the most active ransomware groups, having claimed 3 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the noblecorp.net ransomware attack occur?

The ransomware attack on noblecorp.net was disclosed on September 9, 2025. This date reflects when the victim was published on the threat group's leak site, which may differ from the actual date of initial compromise.

What data was stolen in the noblecorp.net ransomware attack?

The specific data stolen from noblecorp.net has not been independently verified by this platform. Ransomware groups typically exfiltrate data before encrypting systems and use the threat of publication to pressure victims. As a Energy organisation, noblecorp.net likely held sensitive business data, client information, and operational records.

How can organisations protect against Yurei attacks?

To defend against Yurei and similar threat actors, organisations should: maintain regular offline backups tested for restoration; implement network segmentation to limit lateral movement; deploy multi-factor authentication on all remote access; use endpoint detection and response (EDR) tools; conduct regular phishing and security awareness training; and monitor threat intelligence feeds for indicators of compromise (IOCs) associated with active groups.