Gentlemen Ransomware Decryptor review
A free, command-line recovery tool for Gentlemen ransomware when matching keys are in memory.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Gentlemen Ransomware Decryptor is a Python-based tool for attempting file recovery after a Gentlemen ransomware incident, also known as hastalamuerte. It is aimed at technical incident responders and victims who can work with encrypted files and a memory dump from the running ransomware process. Its command-line workflow extracts ephemeral public keys from encrypted files, searches process memory for matching private keys, and uses recovered keys to decrypt files. Recovery is best-effort: it depends on the relevant private keys appearing in a memory image captured while the ransomware was active.
The central capability is a key-matching workflow rather than a general-purpose file recovery suite. The tool extracts per-file public keys and searches memory dumps for their corresponding private keys; if the keys are recovered, it can decrypt files. That makes the memory image a critical part of the process, not an optional input. Without the relevant keys in that image, the tool cannot recover the files. Teams without a suitable capture, or without the technical capacity to handle the command-line process and memory dump, should not expect the decryptor alone to resolve an incident.
The tool is free, with self-hosted deployment and email support. Its file-size safeguard refuses files larger than 1 MB by default unless explicitly overridden. Its Business Source License permits non-commercial use, internal business use, incident response, and victim recovery, but explicitly is not an open-source license. Choose it when the incident involves Gentlemen ransomware and a potentially useful memory image is available; look elsewhere for a broader recovery tool, another ransomware strain, or recovery that does not depend on matching keys in process memory.
Gentlemen Ransomware Decryptor pros and cons
- Where it wins
- Extracts per-file public keys and searches memory dumps for matching private keys
- Uses recovered keys to decrypt files through a command-line workflow
- Free to use for incident response and victim recovery
- Where it doesn't
- Recovery depends on a memory image captured while ransomware was active
- Files larger than 1 MB are refused by default unless explicitly allowed
- The Business Source License is not an open-source license
Gentlemen Ransomware Decryptor fact sheet, pricing and score →
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