Ransomware group profile · #65 by claimed victims

Monti ransomware

Monti is a ransomware group first observed in June 2022 that initially copied nearly all of Conti's leaked source code, pivoting to target government, legal, and healthcare entities, later releasing a new Linux variant in 2023 with significantly less Conti code similarity, and experimenting with an affiliate model.

Active First seen Dec 2022

110Victims claimed on leak sites

0Victims in the last 30 days

0Victims in the last 90 days

20Countries hit

21Leak-site URLs tracked, 0 online

8 May 2025Latest claim recorded

Victimology

Who Monti claims to have breached, from 110 leak-site posts recorded by VULONE.

Claims per month last 12 months

Top sectors

Professional Services27

Healthcare19

Manufacturing15

Technology9

Government & Defense6

Financial Services6

Education6

Retail & E-Commerce5

Top countries

United States26

Canada12

Germany5

Italy4

France4

Japan1

Czechia1

South Africa1

Latest claimed victims 12 most recent

Victim	Sector	Country	Claimed
Amtech Software amtechsoftware.com	Technology	US	8 May 2025
American Eagle Logistics aeagleoilfield.com	Transportation	US	3 May 2025
CD cd-custom.com	Manufacturing	JP	19 Mar 2025
Gloria Cales	Not Found	US	19 Mar 2025
agi.net agi.net	Technology	US	6 Mar 2025
365labs - Security Corp 365labs.com	Technology	US	4 Mar 2025
Phoenix	Not Found	—	4 Mar 2025
FM.GOB.AR fm.gob.ar	Government & Defense	AR	2 Mar 2025
sole technology soletechnology.com	Technology	US	11 Feb 2025
nenok.de nenok.de	Manufacturing	DE	30 Jan 2025
FENSTERMAKER fenstermaker.com	Professional Services	US	30 Jan 2025
SCV Med Group scvmedicalgroup.com	Healthcare	US	29 Jan 2025

All 110 Monti victims, searchable

Full victim list with claim posts, domains, timing and exports, plus the negotiation chats and leak-site screenshots VULONE archives for this crew.

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Tactics, techniques and procedures

ATT&CK technique mapping for Monti is in progress. Victimology, infrastructure status and leak-site tracking are live above.

Indicators, detections and the full playbook

Hashes, C2 addresses, onion services, Sigma and YARA detections per technique, and the negotiation transcripts are available to signed-in analysts.

See full IOCs

Frequently asked

Is Monti ransomware still active?

Monti is tracked as active. The most recent leak-site claim VULONE recorded is dated 8 May 2025.

How many victims has Monti claimed?

VULONE has recorded 110 leak-site victim claims attributed to Monti since December 2022, across 20 countries and 13 sectors.

Which industries does Monti target?

The sectors most often named on the Monti leak site are Professional Services, Healthcare, Manufacturing.

Which countries are most affected by Monti?

Most Monti victims recorded by VULONE are located in United States, Canada, Germany.

Where does VULONE get Monti victim data?

Claims are collected continuously from the group's own leak sites and cross-checked with ransomware.live and RansomLook. A claim is the group's assertion, not a confirmed breach.

Other ransomware groups

Victim claims are collected from leak sites and enrichment partners (ransomware.live, RansomLook) and represent the group's own assertions, not confirmed breaches. Profile last updated 16 September 2026. Questions or corrections: [email protected].