Disclosure context

About sinobi

Based on the limited publicly available information, Sinobi appears to be a recently emerged ransomware operation first observed in July 2025, with financial motivations evidenced by their targeting of 268 victims across multiple sectors. The group's origin and specific affiliations remain undocumented in public threat intelligence reporting, and there is no confirmed information regarding whether they operate as a Ransomware-as-a-Service model or as an independent entity. Their attack methodology and technical capabilities have not been extensively documented by major security research organizations, though their targeting patterns suggest a broad opportunistic approach rather than highly selective operations. The group demonstrates a preference for targeting organizations in the United States, India, United Kingdom, Canada, and Italy, with a focus on manufacturing, healthcare, construction, and technology sectors, suggesting they may exploit common vulnerabilities across these industries rather than deploying sophisticated, sector-specific attack vectors. No major high-profile campaigns or significant law enforcement actions against Sinobi have been publicly reported by CISA, FBI, or established threat intelligence firms. Given the recent emergence timeline and lack of extensive public documentation, the group's current operational status and long-term trajectory remain unclear, though the substantial victim count suggests continued activity as of the last available reporting period. The group has been linked to 274 public disclosures across our corpus. First observed on a leak site on July 5, 2025; most recent post May 8, 2026. The operation is currently active.

Timeline of this disclosure

February 20, 2026Gentegra listed by sinobion the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Technology sector, which has 2,524 disclosures indexed across all operators we track. Geographically, Gentegra 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

Gentegra

Claimed by sinobi · listed 3 months ago

Age

since listed · data leaked

Status timeline

Listed
Feb 20, 2026
Data leaked

At a glance

Group: sinobi
Status: Data leaked
Country: United States
Sector: Technology
Listed on leak site: Feb 20, 2026

About the victim

AI dossier — public-source company profile

GenTegra LLC is a biotechnology product company headquartered in Pleasanton, California, specializing in innovative chemical stabilization solutions for DNA and RNA samples. Their product lines—including GenTegraDNA, GenTegraRNA, RNAdvantage, and RNAssure—enable room-temperature storage and shipping of biological samples, eliminating the need for freezers or dry ice. They serve clients in life sciences research, forensic laboratories, biobanking, and sequencing services worldwide.

Industry: Life Sciences & Biotech Sample Stabilization Products
Address: 1020 Serpentine Lane, Suite 110, Pleasanton, CA 94566, USA

Attack summary

Severity: high — Data has been confirmed as published by the threat actor, indicating actual exfiltration. GenTegra serves life sciences, forensic labs, and biobanking clients, meaning exfiltrated data could include sensitive client information, proprietary biotechnology formulations, and potentially regulated research data, elevating the severity beyond medium.

The ransomware group Sinobi claims to have compromised Gentegra and has published data (disclosed status: data_published), though the leak post does not specify whether encryption, exfiltration, or both occurred, nor does it quantify the volume of data involved.

high

Data the group says was taken

AI dossier — extracted from the leak post

Company internal data
Potentially customer/client records
Potentially proprietary research or product data

What the group claims

GenTegra specializes in innovative solutions for the stabilization and shipping of DNA and RNA, focusing on products that ensure sample integrity during transportation. Their offerings include a suite of RNA protection products and forensic DNA storage solutions, catering to clients in life sciences, forensic labs, and biobanking. With technology validated for maintaining the quality of samples at room temperature, GenTegra is recognized for revolutionizing hassle-free sample management and offering superior protection for RNA and DNA. Their products are designed to seamlessly integrate into existing protocols, showcasing compatibility with standard purification kits.

Sources

Victim sitewww.gentegra.com
Leak posthttp://sinobi6ftrg27d6g4sjdt65malds6cfptlnjyw52rskakqjda6uvb7yd.onion/leaks/69975c366387a4c9a215fb08

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.