Silentransomgroup Ransomware
ActiveThreat actor group tracked in the global ransomware database · Last disclosure: Sep 17, 2026
ThreatAI Analysis
Compiled from the ransomware.live profile for Silentransomgroup and from this database. Figures and technique mappings are quoted from the source data, not inferred.
Silentransomgroup, an ex-Conti operation, has ransacked 145 victims across five countries, striking fear in sectors like business services and financials.
Who Silentransomgroup is
a former Conti team
Recorded activity
Disclosures attributed to Silentransomgroup in this database run from May 2025 to September 2026, totalling 146 victims — 0.7% of everything tracked here. Silentransomgroup has listed victims in 5 countries in this database, most often United States, followed by Germany and Canada. The sectors appearing most in its listings are Business Services, Financial Services, Professional Services.
YARA detection rules
SilentRansomGroup.yar
/*
Silent Ransom Group (Luna Moth affiliate)
*/
rule SilentRansomGroup_Note
{
meta:
author = "ransomware.live"
family = "ransomware.silentransomgroup"
description = "Detects Silent Ransom Group note"
date = "2026-05-04"
severity = 7
score = 70
strings:
$s1 = "Silent Ransom" ascii nocase
$s2 = "SilentRansom" ascii nocase
$s3 = "Luna Moth" ascii nocase
condition:
any of them
}
Community-contributed rules for Silentransomgroup, reproduced as published. Test them against your own corpus before relying on them: rule quality and false-positive behaviour vary by author.
Threat Actor Analysis
Silentransomgroup is a ransomware threat group that has disclosed 146 victims in publicly accessible leak site data, representing 0.7% of all ransomware attacks tracked in this database. The earliest victim disclosure attributed to Silentransomgroup in our dataset dates to May 2025.
Geographically, Silentransomgroup has targeted organisations in 5 countries. The most frequently targeted nation is United States with 114 victim organisations. Other heavily targeted nations include Germany, Canada, Russia.
Industry-wise, Silentransomgroup shows a concentration in the Business Services, Financial Services, Professional Services sectors. These industries are frequently targeted because they manage sensitive data, critical operations, or have lower tolerance for operational downtime — conditions that increase ransom payment likelihood.
Like most modern ransomware operations, Silentransomgroup likely employs a double extortion model: encrypting victim files while simultaneously exfiltrating data, creating dual pressure to pay the ransom. Victim organisations that refuse payment face having their data published on the group's dark web leak site.
Note: This profile is generated from public leak site disclosures aggregated via the ransomware.live API. Data is updated automatically. The table below lists the 100 most recent of the 146 disclosures we hold for this group; use the link beneath it to page through all of them.
Recent Victim Disclosures (showing 100 of 146)
| # | Organization | Country | Sector | Date |
|---|---|---|---|---|
| 1 | C... | — | — | Sep 17, 2026 |
| 2 | H... C... | — | — | Sep 4, 2026 |
| 3 | A...en A...en | 🇩🇪 Germany | — | Sep 3, 2026 |
| 4 | Katten Muchin Rosenman katten.com | 🇺🇸 United States | Professional Services | Sep 3, 2026 |
| 5 | P... S... | — | — | Sep 3, 2026 |
| 6 | G... ...g | — | — | Sep 2, 2026 |
| 7 | Greenberg Traurig | 🇺🇸 United States | Professional Services | Sep 2, 2026 |
| 8 | S... M... | — | — | Sep 2, 2026 |
| 9 | Holland & Knight | 🇺🇸 United States | Professional Services | Sep 1, 2026 |
| 10 | G... T... | — | — | Aug 27, 2026 |
| 11 | Ne...n M... | — | — | Aug 27, 2026 |
| 12 | A... | — | — | Aug 26, 2026 |
| 13 | C... O... | — | — | Aug 26, 2026 |
| 14 | H... K... | — | — | Aug 26, 2026 |
| 15 | H... L... | — | — | Aug 26, 2026 |
| 16 | K... M... | — | — | Aug 26, 2026 |
| 17 | N... M... | — | — | Aug 26, 2026 |
| 18 | Q... E... | — | — | Aug 26, 2026 |
| 19 | S... P... | — | — | Aug 26, 2026 |
| 20 | D... | — | — | Aug 20, 2026 |
| 21 | T... P... L... | — | — | Aug 18, 2026 |
| 22 | Troutman Pepper Locke | 🇺🇸 United States | Professional Services | Aug 18, 2026 |
| 23 | Reminger reminger.com | 🇩🇪 Germany | Professional Services | Aug 13, 2026 |
| 24 | R... D... | — | — | Aug 12, 2026 |
| 25 | R...er R...er | — | — | Aug 12, 2026 |
| 26 | Riker Danzig LLP riker.com | 🇺🇸 United States | Professional Services | Aug 12, 2026 |
| 27 | Riker Danzig Scherer Hyland & Perretti riker.com | — | Professional Services | Aug 12, 2026 |
| 28 | Mayer Brown | 🇺🇸 United States | Professional Services | Aug 7, 2026 |
| 29 | Moses & Singer mosessinger.com | 🇺🇸 United States | Professional Services | Aug 2, 2026 |
| 30 | He..t S..it. | — | — | Jun 17, 2026 |
| 31 | He..t S..t. | — | — | Jun 16, 2026 |
| 32 | Fox Rothschild LLP foxrothschild.com | 🇺🇸 United States | Business Services | May 28, 2026 |
| 33 | Barclay Damon barclaydamon.com | 🇺🇸 United States | Business Services | May 19, 2026 |
| 34 | Marshall Dennehey marshalldennehey.com | 🇺🇸 United States | Business Services | May 12, 2026 |
| 35 | Porter Wright porterwright.com | 🇺🇸 United States | Business Services | May 12, 2026 |
| 36 | Farella Braun + Martel LLP Information | 🇺🇸 United States | Business Services | May 6, 2026 |
| 37 | Ropers Majeski ropers.com | 🇺🇸 United States | Business Services | May 6, 2026 |
| 38 | Sandberg Phoenix Information sandbergphoenix.com | 🇺🇸 United States | Business Services | May 6, 2026 |
| 39 | Floyd Skeren Manukian Langevin, LLP Information | — | Business Services | Apr 28, 2026 |
| 40 | Floyd Skeren Manukian Langevin, LLP floydskerenlaw.com | 🇺🇸 United States | Business Services | Apr 28, 2026 |
| 41 | Chartwell Law chartwelllaw.com | 🇬🇧 United Kingdom | Business Services | Apr 23, 2026 |
| 42 | Jackson Lewis jacksonlewis.com | 🇺🇸 United States | Business Services | Apr 22, 2026 |
| 43 | Rutan & Tucker, LLP rutan.com | 🇺🇸 United States | Business Services | Apr 21, 2026 |
| 44 | Fagen Friedman & Fulfrost LLP f3law.com | 🇺🇸 United States | Business Services | Apr 17, 2026 |
| 45 | Harris Beach Murtha harrisbeachmurtha.com | 🇺🇸 United States | Business Services | Apr 15, 2026 |
| 46 | T..t Ste..ius & Ho.i.ter LLP | 🇺🇸 United States | Business Services | Apr 13, 2026 |
| 47 | Goulston & Storrs goulstonstorrs.com | 🇺🇸 United States | Business Services | Apr 10, 2026 |
| 48 | T..t Ste..ius & Ho..ter LLP | 🇺🇸 United States | Business Services | Apr 10, 2026 |
| 49 | Cox, Castle & Nicholson LLP coxcastle.com | 🇺🇸 United States | Business Services | Apr 9, 2026 |
| 50 | Bo.. and Br..e | 🇺🇸 United States | — | Apr 3, 2026 |
| 51 | Ph..s | 🇺🇸 United States | — | Apr 1, 2026 |
| 52 | Plunkett Cooney plunkettcooney.com | 🇺🇸 United States | Business Services | Apr 1, 2026 |
| 53 | Jones Day jonesday.com | 🇺🇸 United States | Business Services | Mar 30, 2026 |
| 54 | C..er CPA | 🇺🇸 United States | Financial Services | Mar 26, 2026 |
| 55 | Phelps Dunbar phelps.com | 🇺🇸 United States | Business Services | Mar 22, 2026 |
| 56 | Wood Smith Henning & Berman LLP wshblaw.com | 🇺🇸 United States | Business Services | Mar 18, 2026 |
| 57 | Singleton Schreiber singletonschreiber.com | 🇺🇸 United States | Business Services | Mar 16, 2026 |
| 58 | HEMIC - Hawaii Employers' Mutual Insurance Co hemic.com | 🇺🇸 United States | Financial Services | Feb 27, 2026 |
| 59 | Nations Financial Group Inc nationsfg.com | 🇺🇸 United States | Financial Services | Feb 27, 2026 |
| 60 | Plaza Home Mortgage plazahomemortgage.com | 🇺🇸 United States | Financial Services | Feb 27, 2026 |
| 61 | Two River Group Holdings LLC tworiver.com | 🇺🇸 United States | Financial Services | Feb 27, 2026 |
| 62 | Orrick, Herrington & Sutcliffe orrick.com | 🇺🇸 United States | Business Services | Feb 23, 2026 |
| 63 | Marshall & Stevens, Valuescope | 🇺🇸 United States | Financial Services | Feb 17, 2026 |
| 64 | Marshall & Stevens marshall-stevens.com | 🇺🇸 United States | Financial Services | Feb 16, 2026 |
| 65 | Barrett Financial Group barrettfinancial.com | 🇺🇸 United States | Financial Services | Feb 9, 2026 |
| 66 | Fish & Richardson Overview Metrics fr.com | 🇺🇸 United States | Business Services | Dec 7, 2025 |
| 67 | Mintzer Sarowitz Zeris Ledva & Meyers mszwlaw.com | 🇺🇸 United States | Business Services | Dec 7, 2025 |
| 68 | Carlton Fields carltonfields.com | 🇺🇸 United States | Business Services | Nov 26, 2025 |
| 69 | Mitchell Silberberg & Knupp msk.com | 🇺🇸 United States | Business Services | Nov 25, 2025 |
| 70 | MSK | 🇷🇺 Russia | Business Services | Nov 25, 2025 |
| 71 | Hall Estill hallestill.com | 🇺🇸 United States | Financial Services | Oct 24, 2025 |
| 72 | Confie confie.com | 🇺🇸 United States | Financial Services | Oct 10, 2025 |
| 73 | Gordon Rees Scully Mansukhani LLP grsm.com | 🇺🇸 United States | Business Services | Sep 7, 2025 |
| 74 | Moore & Van Allen danpatrick.com | 🇺🇸 United States | Financial Services | Sep 3, 2025 |
| 75 | 44North 44northbenefits.com | 🇺🇸 United States | Financial Services | May 6, 2025 |
| 76 | ADM LAW admlaw.com | 🇺🇸 United States | Business Services | May 6, 2025 |
| 77 | Advantage Group GA advantagegroupga.com | 🇺🇸 United States | Business Services | May 6, 2025 |
| 78 | AG Adjustment agadjustments.com | 🇺🇸 United States | Business Services | May 6, 2025 |
| 79 | AGT Slots ainsworth.com | 🇺🇸 United States | Hospitality and Tourism | May 6, 2025 |
| 80 | Anders CPAs + Advisors anderscpa.com | 🇺🇸 United States | Financial Services | May 6, 2025 |
| 81 | ATLAS CPAs & Advisors atlascpas.com | 🇺🇸 United States | Financial Services | May 6, 2025 |
| 82 | Ball Eggleston Law Firm ballegglestonlaw.com | 🇺🇸 United States | Business Services | May 6, 2025 |
| 83 | Barst Mukamal & Kleiner barstlaw.com | 🇺🇸 United States | Business Services | May 6, 2025 |
| 84 | Bass , Berry & Sims PLC bassberry.com | 🇺🇸 United States | Financial Services | May 6, 2025 |
| 85 | Baxter Baker Sidle Conn & Jones baxterbaker.com | 🇺🇸 United States | Financial Services | May 6, 2025 |
| 86 | Black , Bashor & Porsch bbpaccounting.com | 🇺🇸 United States | Financial Services | May 6, 2025 |
| 87 | Cantey Hanger LLP canteyhanger.com | 🇺🇸 United States | Business Services | May 6, 2025 |
| 88 | Chicago Atlantic Group chicagoatlantic.com | 🇺🇸 United States | Financial Services | May 6, 2025 |
| 89 | Colucci Law Group coluccilawgroup.com | 🇺🇸 United States | Business Services | May 6, 2025 |
| 90 | Cors & Bassett corsbassett.com | 🇺🇸 United States | Business Services | May 6, 2025 |
| 91 | CRC Group | 🇺🇸 United States | Financial Services | May 6, 2025 |
| 92 | Cross Valley FCU crossvalleyfcu.org | 🇺🇸 United States | Financial Services | May 6, 2025 |
| 93 | Davenport & Company LLC davenport.com | 🇺🇸 United States | Financial Services | May 6, 2025 |
| 94 | Dean & Fulkerson dflaw.com | 🇺🇸 United States | Business Services | May 6, 2025 |
| 95 | Elmore & Bunn chadwickwashington.com | 🇺🇸 United States | Business Services | May 6, 2025 |
| 96 | Essex Property Trust essexproperty.com | 🇺🇸 United States | Financial Services | May 6, 2025 |
| 97 | EW Smith Insurance Agency ewsmithinsurance.com | 🇺🇸 United States | Financial Services | May 6, 2025 |
| 98 | Fenwick fenwick.com | 🇺🇸 United States | Business Services | May 6, 2025 |
| 99 | Fenwick & West LLP fenwick.com | 🇺🇸 United States | Business Services | May 6, 2025 |
| 100 | First Financial Equity ffec.com | 🇺🇸 United States | Financial Services | May 6, 2025 |
Frequently Asked Questions
What is Silentransomgroup ransomware?
Silentransomgroup is a ransomware threat group that has claimed 146 victims since its first known activity in May 2025. The group operates by infiltrating target networks, exfiltrating data, encrypting files, and threatening to publish stolen data on a dark web leak site if the ransom is not paid.
How many victims has Silentransomgroup attacked?
Silentransomgroup has claimed 146 victims in our database, representing 0.7% of all tracked ransomware attacks. The most targeted countries are United States, Germany, Canada, Russia.
Which countries does Silentransomgroup target?
Silentransomgroup has attacked organizations in 5 countries. The top targeted countries are: United States, Germany, Canada, Russia.
Which industries does Silentransomgroup target?
Silentransomgroup most frequently targets the Business Services, Financial Services, Professional Services sectors based on victim disclosures in our database.
Is Silentransomgroup still active?
Silentransomgroup's most recent victim disclosure in our database was on September 17, 2026. Ransomware groups frequently rebrand or go dormant; monitor this page and our ransomware map for the latest activity.