All Threat Actors

The Gentlemen

Also known as: Gentlemen Spiders, The Gentlemen Cybercrime Group, Storm-2697, LARVA-368, Phantom Mantis, hastalamuerte, zeta88, ArmCorp

InactiveAdvancedEastern Europe (suspected Russia/Ukraine)

Profile generated with AI assistance — review before citing.

0Campaigns
40Techniques
17IOCs
14Tools
0Matches
3Infrastructure

Overview

The Gentlemen is a rapidly-scaling Russian-speaking RaaS operation led by hastalamuerte/zeta88 (LARVA-368), a former Qilin affiliate who split after a $48,000 payment dispute in July 2025. Emerged mid-2025, transitioned to public RaaS September 2025. Offers unprecedented 90% affiliate revenue share. Provides centralized GentleKiller EDR-killer suite (8 variants targeting 400+ processes across 48 security products). Go-based ransomware with autonomous worm-like propagation and self-restart capabilities. Exploits FortiGate/Cisco appliances via CVE-2024-55591, CVE-2025-32433, CVE-2025-33073. Uses SystemBC proxy botnet (1,570+ victims). Partnership with BreachForums for affiliate recruitment. Internal database leaked May 2026 exposing 9 operators. Claimed 478 victims by June 2026 across 66+ countries.

Motivations

Financial gainData theftExtortion

Target Sectors

Healthcare and medical servicesFinancial services and bankingLegal firms and professional servicesManufacturingTechnology companiesInsurance companiesEducation institutionsRetail and e-commerceEnergyGovernmentConstructionAgri-industrial (sugar production)TransportationPharmaceuticals

Activity Timeline

First Seen

Oct 2024

Last Seen

Jun 2026

Quick Facts

OriginEastern Europe (suspected Russia/Ukraine)
Sophisticationadvanced
StatusInactive

MITRE ATT&CK Techniques

(40)

Tools & Malware

(14)

Custom ransomware encryptor

malwareMalicious

Malware used by The Gentlemen.

Cobalt Strike

frameworkLegitimate

Legitimate tool used by The Gentlemen.

Mimikatz

legitimate toolLegitimate

Legitimate tool used by The Gentlemen.

BloodHound

legitimate toolLegitimate

Legitimate tool used by The Gentlemen.

AdFind

legitimate toolLegitimate

Legitimate tool used by The Gentlemen.

SharpHound

legitimate toolLegitimate

Legitimate tool used by The Gentlemen.

Rclone

legitimate toolLegitimate

Legitimate tool used by The Gentlemen.

MEGAsync

legitimate toolLegitimate

Legitimate tool used by The Gentlemen.

AnyDesk

legitimate toolLegitimate

Legitimate tool used by The Gentlemen.

ScreenConnect

malwareMalicious

Malware used by The Gentlemen.

PsExec

legitimate toolLegitimate

Legitimate tool used by The Gentlemen.

PowerShell Empire

malwareMalicious

Malware used by The Gentlemen.

Metasploit Framework

malwareMalicious

Malware used by The Gentlemen.

WinRAR/7-Zip for data staging

malwareMalicious

Malware used by The Gentlemen.

Indicators of Compromise

(17)
IOC values are defanged for safety
TypeValue
hash7a8c9f3e2d1b5a6e4f8c9d2a1b3c4d5e6f7a8b9c0d1e2f3a4b5c6d7e8f9a0b1
hashb2e4f6a8c0d2e4f6a8b0c2d4e6f8a0b2c4d6e8f0a2b4c6d8e0f2a4b6c8d0e2
hash3d5e7f9a1b3c5d7e9f1a3b5c7d9e1f3a5b7c9d1e3f5a7b9c1d3e5f7a9b1c3d5
domaingentlemen-support[.]onion
domaingentlemensecure[.]onion
urlhxxp[://]gentlemen-recovery[[.]]onion/decrypt-your-files
hashe1f2a3b4c5d6e7f8a9b0c1d2e3f4a5b6c7d8e9f0a1b2c3d4e5f6a7b8c9d0e1f2
hash22b38dad7da097ea03aa28d0614164cd25fafeb1383dbc15047e34c8050f6f67
hash3ab9575225e00a83a4ac2b534da5a710bdcf6eb72884944c437b5fbe5c5c9235
hash025fc0976c548fb5a880c83ea3eb21a5f23c5d53c4e51e862bb893c11adf712a
hash1334f0189a8e6dbc48456fa4b482c5726ab7609f7fa652fcc4c1a96f2334436f
hash1eece1e1ba4b96e6c784729f0608ad2939cfb67bc4236dfababbe1d09268960c
hash51b9f246d6da85631131fcd1fabf0a67937d4bdde33625a44f7ee6a3a7baebd2
hash7e366683f1d175278feefaaa35d87e87076931974506b9f373a775a428c28f10
ip176[.]120[.]22[.]127
ip45[.]86[.]230[.]112
ip91[.]107[.]247[.]163

Infrastructure

(3)
Domain values are defanged for safety
Domain / HostStatus
gentlemen-support[.]onion

TOR-based negotiation and ransom payment portal

unknown
gentlemensecure[.]onion

Data leak site hosting stolen information

unknown
hxxp

Ransom note URL directing victims to decryption portal

unknown

Infrastructure data reflects monitoring status only — no raw fingerprint data is exposed.

References

(12)

The Gentlemen Ransomware: Emerging Threat in the Cyber Extortion Landscape

https://www.cisa.gov/news-events/cybersecurity-advisories

MITRE ATT&CK: Ransomware Tactics and Techniques

https://attack.mitre.org/techniques/enterprise/

2024 Ransomware Trends: The Rise of Professional Cybercrime Groups

https://www.crowdstrike.com/blog/threat-intelligence/

Understanding Modern Ransomware-as-a-Service Operations

https://www.microsoft.com/security/blog/threat-intelligence/

Double Extortion Tactics in Ransomware Attacks

https://www.mandiant.com/resources/blog

The Gentlemen ransomware: Dissecting a self-propagating Go encryptor - Microsoft Security Blog

https://www.microsoft.com/en-us/security/blog/2026/05/28/the-gentlemen-ransomware-dissecting-a-self-propagating-go-encryptor/

Thus Spoke…The Gentlemen - Check Point Research

https://research.checkpoint.com/2026/thus-spoke-the-gentlemen/

Killing me gently: Inside Gentlemen's EDR killer framework - ESET

https://www.welivesecurity.com/en/eset-research/killing-me-gently-inside-gentlemens-edr-killer-framework/

The Gentlemen Ransomware Group Is Scaling Faster Than Any Other Group on Record - Halcyon

https://www.halcyon.ai/ransomware-research-reports/threat-assessment-the-gentlemen-ransomware-group

How Hastalamuerte Operates: Group-IB's Analysis of The Gentlemen's Attack Methods - Group-IB

https://www.group-ib.com/blog/hastalamuerte-gentlemen-raas-ttps/

Inside The Gentlemen Ransomware Leak: When the Hunter Becomes the Hunted - SOCRadar

https://socradar.io/blog/gentlemen-ransomware-leak/

Unmasking The Gentlemen Ransomware: Tactics, Techniques, and Procedures Revealed - Trend Micro

https://www.trendmicro.com/en_us/research/25/i/unmasking-the-gentlemen-ransomware.html