Disclosure context

About Knight

Knight is a relatively new ransomware group that emerged in September 2023, operating with primarily financial motivations and demonstrating a focus on targeting critical infrastructure and high-value sectors. The group's origin and specific affiliations remain largely undocumented in public threat intelligence reports, though their operational patterns suggest they operate as an independent entity rather than a established ransomware-as-a-service model. With 48 known victims since their emergence, Knight has shown a preference for targeting organizations across the United States, Brazil, Italy, Spain, and Germany, with particular focus on healthcare, manufacturing, media, and government sectors. Their attack methodology and specific technical capabilities have not been extensively documented by major security firms, though their targeting of healthcare and government entities suggests they employ effective initial access techniques and likely utilize double extortion tactics common among contemporary ransomware groups. While specific notable campaigns have not been widely publicized by CISA, FBI, or major security researchers, the group's consistent activity across multiple countries and high-value sectors indicates sustained operational capability. Knight appears to remain active as of current reporting, though detailed technical analysis and specific law enforcement actions against the group have not been publicly documented by authoritative sources. The group has been linked to 48 public disclosures across our corpus. First observed on a leak site on September 6, 2023; most recent post February 12, 2024. The operation is currently inactive.

Timeline of this disclosure

February 2, 2024AbelSantosyAsociados listed by Knighton the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Financial sector, which has 333 disclosures indexed across all operators we track. Geographically, AbelSantosyAsociados is reported in Argentina, a country with 16 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

AbelSantosyAsociados

Claimed by Knight · listed 2 years ago

27m

Age

since listed · data leaked

Status timeline

Listed
Feb 2, 2024
Data leaked

At a glance

Group: Knight
Status: Data leaked
Country: Argentina
Sector: Financial
Listed on leak site: Feb 2, 2024

What the group claims

We'll provide a sample of the data. Enjoy:http://uzfrntnmwojla5v4w3xvpxerjg43kuzqxmtspqhi5qclwtof5ibgonyd.onion/AbelSantosyAsociados/sampledata.rarOur activities cover the regulatory, technical, medical, marketing, building and administrative management aspects of companies dedicated to the manufacturing and/or marketing of pharmaceutical, cosmetic, dental, biomedical, mass consumption, household health products, diagnostic reagents, nutritional/ dietary, phytotherapeutic and food.  Our areas of activity are under the responsibility of professionals with extensive national and international experience, developed in leading companies in the production and marketing of health products, who guarantee personalized attention, framed in excellence, reliability and confidentiality.1.png 74.46 KB2.png 75.2 KB3.png 136.72 KB4.png 460.44 KB5.png 70.5 KB

Sources

Leak posthttp://knight3xppu263m7g4ag3xlit2qxpryjwueobh7vjdc3zrscqlfu3pqd.onion/daecb49f-83c8-4add-99d4-237bed1b31e3/

Source

Indexed 2 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.