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Ransomware Victim Construction

Rasen Insaat Ve Yatirim Ticaret A.S.

Ransomware attack by Blackshrantac · Disclosed November 29, 2025 · 🇹🇷 Turkey

rasen.com.tr

Date Disclosed
Nov 29, 2025
2025
Threat Group
Blackshrantac
43 total victims
Country
🇹🇷 Turkey
Industry
Construction

ThreatAI Analysis

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

About the Blackshrantac group

BlackShrantac is a ransomware group that emerged in late 2025, targeting organizations in manufacturing, financial services, technology, and the public sector globally, employing double-extortion combined with living-off-the-land techniques to weaponize legitimate tools and disable defenses before encrypting files. Blackshrantac has listed 43 victims since September 2025.

Incident Analysis

Rasen Insaat Ve Yatirim Ticaret A.S. was targeted by Blackshrantac ransomware, one of the most active ransomware groups in our database with 43 confirmed victims globally. The attack was disclosed on November 29, 2025, when Rasen Insaat Ve Yatirim Ticaret A.S. appeared on the group's dark web leak site.

Rasen Insaat Ve Yatirim Ticaret A.S. is based in Turkey , operating in the Construction sector. Turkey ranks #19 globally for ransomware attacks, with 146 victims in our database.

Sector context: Construction firms often hold sensitive project data, client financials, and intellectual property. The industry's typically lean IT security teams can make them more vulnerable.

Blackshrantac typically employs a double extortion model: first exfiltrating sensitive data from the victim's systems, then deploying ransomware to encrypt files. Victims face two simultaneous threats — paying to restore access and paying to prevent publication of stolen data. The group's leak site publishes victim names and exfiltrated data as leverage.

Data source: This incident record is sourced from public ransomware group leak site disclosures aggregated via the ransomware.live API. Disclosure date reflects when the victim was published on the leak site, which may differ from the initial date of compromise. This platform does not publish or link to stolen data. Last data update: Sep 6, 2026 22:00 UTC.

Frequently Asked Questions

Was Rasen Insaat Ve Yatirim Ticaret A.S. attacked by ransomware?

Yes. Rasen Insaat Ve Yatirim Ticaret A.S. was listed as a victim of the Blackshrantac ransomware group on November 29, 2025. The organisation is based in Turkey and operates in the Construction sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked Rasen Insaat Ve Yatirim Ticaret A.S.?

Rasen Insaat Ve Yatirim Ticaret A.S. was attacked by Blackshrantac ransomware. Blackshrantac is one of the most active ransomware groups, having claimed 43 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the Rasen Insaat Ve Yatirim Ticaret A.S. ransomware attack occur?

The ransomware attack on Rasen Insaat Ve Yatirim Ticaret A.S. was disclosed on November 29, 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 Rasen Insaat Ve Yatirim Ticaret A.S. ransomware attack?

The specific data stolen from Rasen Insaat Ve Yatirim Ticaret A.S. 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 Construction organisation, Rasen Insaat Ve Yatirim Ticaret A.S. likely held sensitive business data, client information, and operational records.

How can organisations protect against Blackshrantac attacks?

To defend against Blackshrantac 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.