Disclosure context

About anubis

Anubis is a recently emerged ransomware group that began operations in February 2025, primarily motivated by financial gain through encryption and extortion attacks. The group has demonstrated rapid expansion, accumulating 65 documented victims within a short operational timeframe. Given the group's recent emergence, limited information is publicly available regarding their specific country of origin, organizational structure, or confirmed affiliations with other cybercriminal entities, though their operational patterns suggest they may operate as an independent group or small-scale ransomware-as-a-service operation. Their attack methodology appears to focus on opportunistic targeting across multiple geographic regions, with victims concentrated primarily in the United States, Australia, Canada, the United Kingdom, and France, indicating either English-language proficiency or the use of automated tools that facilitate cross-border operations. The group demonstrates a clear preference for targeting healthcare organizations and manufacturing companies, followed by business services and technology sectors, suggesting they prioritize organizations with critical operational dependencies that may be more likely to pay ransoms quickly. Due to the group's recent emergence in early 2025, there is insufficient publicly documented information from established cybersecurity firms or law enforcement agencies regarding their specific technical capabilities, encryption methods, or whether they employ double or triple extortion tactics involving data theft and leak sites. As of current reporting, Anubis remains an active threat with continued victim acquisition, though the full scope of their capabilities and long-term operational sustainability remains to be determined as security researchers continue to analyze their activities. The group has been linked to 77 public disclosures across our corpus. First observed on a leak site on February 25, 2025; most recent post May 13, 2026. The operation is currently active.

Timeline of this disclosure

February 6, 2026Advent Aircraft Systems, Inc. listed by anubison the group's public leak site

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, Advent Aircraft Systems, Inc. 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

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Advent Aircraft Systems, Inc.

Claimed by anubis · listed 3 months ago

Age

since listed · data leaked

Status timeline

Listed
Feb 6, 2026
Data leaked

At a glance

Group: anubis
Status: Data leaked
Country: United States
Sector: Manufacturing
Listed on leak site: Feb 6, 2026

About the victim

AI dossier — public-source company profile

Advent Aircraft Systems, Inc. is a United States-based company operating in the aerospace and defense sector. Based on the leak post categorization, the company is involved in aerospace developments. No public website content was available to provide additional detail on their scale or specific products.

Industry: Aerospace & Defense Manufacturing

Attack summary

Severity: critical — The victim operates in the aerospace and defense sector, and 679 GB / 241,108 files of data have been published. Aerospace and defense data exfiltration at this scale is classified as critical due to potential national security implications, proprietary technical designs, and regulated defense-related information.

The Anubis ransomware group claims to have exfiltrated 679 GB of data across 241,108 files from Advent Aircraft Systems, Inc., describing the breach as involving aerospace development data. The post is marked 'Top Secret' and the data is listed as published.

critical

Data the group says was taken

AI dossier — extracted from the leak post

Aerospace development documents
Internal files (241,108 files across 679 GB)

What the group claims

Data breach on aerospace developments.

The leak post

captured from the group's site

Anubis blog ANUBIS NEWS FAQ ABOUT RULES English English Español Русский 中文 Deutsch BLOGS Accounting / 256 GB / 375,823 files A.R.Ge.Co Accounting firm data breach. OPEN Dental Clinic / 86 GB / 118,389 files Colorado Dental Wellness Center Clients’ medical data breach. OPEN Finance / 185 GB / 202,005 files Marnell Financial Services Data breach at financial company. OPEN Digital payment services and card-accounts / 20 GB Tractial A small but substantial data breach at a fintech company. OPEN Top Secret Patients data / 4,1 TB / 1,099,106 files ViaQuest Large-scale data breach at a care provider for seriously ill patients. OPEN Top Secret Law firm / 1.3 TB / 325,841 files Samuel I. White, PC Significant breach at a law firm. OPEN Fuel supply services / 30 GB / 14,726 files Star Fuels Data breach at a small fuel company. OPEN IT / 26 GB / 42,657 files Tesla Systems Careless IT contractor jeopardizes client security. OPEN [AU] Airlines &amp; Air Services / 57 GB / 68,046 files Shine Aviation Aviation firm data breach. OPEN Advertising Networks / 1.4 TB / 843,230 files Publishers Clearing House The fall of a sweepstakes giant. OPEN Software &amp; Cybersecurity / 33 GB / 30,497 files Scal…

Sources

Leak posthttp://om6q4a6cyipxvt7ioudxt24cw4oqu4yodmqzl25mqd2hgllymrgu4aqd.onion/r/4cE5Ccf6iBUOzCID0xKzwRGq1oC8wrzhxArRfv3P2Q+Przzka+yAyMJlIIqWYI5C8+1sML4TNHEZRUGUcmg0SlpvOU1m

Source

Indexed 3 months 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.