Disclosure context

About Avoslocker

**Overview**: AvosLocker is a financially motivated ransomware group that emerged in June 2021, operating as both a Ransomware-as-a-Service (RaaS) platform and conducting direct attacks against organizations worldwide. The group has demonstrated sophisticated capabilities and has targeted over 70 victims across multiple critical sectors. **Origin & Affiliation**: While the exact country of origin remains unclear, AvosLocker operates as a RaaS model, recruiting affiliates to conduct attacks using their ransomware payload and infrastructure. The group has shown no clear ties to state-sponsored activities, appearing to be purely profit-driven cybercriminals. **Attack Methodology**: AvosLocker typically gains initial access through compromised Remote Desktop Protocol (RDP) credentials, VPN vulnerabilities, and phishing campaigns, subsequently deploying tools like Cobalt Strike for lateral movement and persistence. The group employs double extortion tactics, stealing sensitive data before encrypting systems and threatening to publish the information on their leak site if ransom demands are not met. Their ransomware uses strong encryption algorithms and includes capabilities to terminate security processes and delete shadow copies to prevent recovery. **Notable Campaigns**: The group has particularly targeted critical infrastructure sectors including education, manufacturing, finance, healthcare, and transportation, with significant attacks reported against organizations in the United States, Germany, Singapore, Canada, and France. CISA and FBI have issued joint advisories warning about AvosLocker's targeting of critical infrastructure, highlighting the group's impact on essential services. **Current Status**: As of recent threat intelligence reporting, AvosLocker remains active, continuing to recruit affiliates and conduct ransomware operations against organizations globally. The group has been linked to 70 public disclosures across our corpus. First observed on a leak site on June 13, 2021; most recent post February 11, 2023. The operation is currently inactive.

Also tracked as: Avos.

Timeline of this disclosure

December 26, 2022Yildiz Entegre USA listed by Avoslockeron the group's public leak site

Ransom demanded: $200.000

Sector and geography

This disclosure adds to ransomware activity in the Manufacturing sector, which has 2,458 disclosures indexed across all operators we track. Geographically, Yildiz Entegre USA is reported in United States, a country with 7,392 ransomware disclosures in our corpus.

How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.

Ransomware victim disclosure

← All victims

Yildiz Entegre USA Inc.

listed as Yildiz Entegre USA · Claimed by Avoslocker · listed 3 years ago

$200.000

Ransom

demanded

41m

Age

since listed · data leaked

Status timeline

Listed
Dec 26, 2022
Data leaked

At a glance

Group: Avoslocker
Status: Data leaked
Country: United States
Sector: Manufacturing
Listed on leak site: Dec 26, 2022
Ransom demanded: $200.000

About the victim

AI dossier — public-source company profile

Yildiz Entegre USA Inc. is the United States subsidiary of Yıldız Entegre Ağaç San ve Tic AŞ, a Turkish integrated wood products manufacturer and part of the Yıldızlar Yatırım Holding conglomerate. The parent holding group encompasses a broad range of subsidiaries spanning fertilizers, steel, insurance, energy, logistics, and wood manufacturing across Turkey, the US, Romania, Russia, and the Adriatic region. The US entity serves as the North American arm of the group's wood panel and related product operations.

Industry: Wood Panel & Integrated Wood Products Manufacturing

Attack summary

Severity: high — Data is stated as published (disclosed_status: data_published) and consists of strictly confidential corporate files spanning a large multinational holding group including financial, operational, and likely sensitive business records; the group also explicitly references banking/financial regulatory bodies, suggesting financial data exposure at scale.

AvosLocker claims to have exfiltrated strictly confidential business files (including .doc, .xls, .xlsx, .pdf, .msg formats) from Yildiz Entegre USA and associated holding entities, with data described as published; the group also references the broader Yıldızlar Yatırım Holding group and calls for bank investigations involving the Central Bank of Turkey and the Federal Reserve.

high

Data the group says was taken

AI dossier — extracted from the leak post

Confidential business documents (.doc)
Spreadsheets (.xls / .xlsx)
PDF documents
Email messages (.msg)
Financial records
Corporate/holding group files

What the group claims

https://www.zoominfo.com/c/yldz-entegre/355492210 https://www.dnb.com/business-directory/company-profiles.yildizlar_yatirim_holding_anonim_sirketi.5db0188dbc06caa3c959161dce6ad867.html NEWS about ~$200,000,000 investments by Company: Yıldızlar Yatırım Holding. Source: https://www.enkocaeli.com/haber/9845649/yildizlar-yatirim-holdinge-saldiri-iddiasi We should provide Bank Investigations and refer to The Central Bank of the Republic of Turkey, Federal Reserve etc List of Holding's affiliated group companies: 1- İstanbul Gübre Sanayi Anonim Şirketi 2- Yıldız Entegre Ağaç San ve Tic AŞ, 3- İGSAŞ Tarımsal Ürünler AŞ, 4- İGSAŞ Sigorta ve Aracılık Hizmetleri AŞ, 5- Yıldız Demir Çelik Sanayi AŞ, 6- YLDZ Laboratuvar Hiz Tic AŞ, 7- Yıldızlar Deniz İşletmeciliği AŞ, 8- YYH Yıldız Enerji Tedarik ve Toptan Satış AŞ, 9- Yıldız Entegre USA INC., 10- Yıldız Entegre Romania SA, 11- Yıldız Chem SRL, 12- Yıldız Logistica SRL, 13- Yıldız Entegre Russia OOO, 14- Yıldız Entegre Adriya DOO This leak contains most of Strictly_Confidential files with file extensions: .doc / .xls / .xlsx / .pdf / .msg / etc

Source

Indexed 3 years ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.