Ransomware Research

Flamingo Ransomware

Flamingo is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on September 1, 2020, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: LandSlide, Lizard,, DoNotWorry, Summon, VILKAS, HYDRA.

Quick facts

Ransomware Family
Flamingo
First Seen
September 1, 2020
Known Aliases
LandSlideLizard,DoNotWorrySummonVILKASHYDRA

How Flamingo ransomware works

File encryption patterns

Flamingo modifies encrypted files using specific patterns to mark them as encrypted:

Extensions added after encryption
.FLAMINGO.LIZARD.LANDSLIDE.DoNotWorry.Summon.VILKAS.HYDRA.DRWEB

Ransom note and payment demands

After encrypting files, Flamingo displays ransom notes demanding payment for file recovery:

file#READ ME.TXT
notes/#READ ME.TXT
file#ReadThis.HTA
notes/#ReadThis.HTA
file#FILESENCRYPTED.txt
notes/#FILESENCRYPTED.txt
Location: EveryFolder

Technical indicators

Associated executable files

The following executable files are associated with Flamingo ransomware:

About this analysis

This Flamingo ransomware analysis is part of Elastio's comprehensive ransomware detection database. Elastio provides advanced ransomware protection and recovery, helping organizations defend against and recover from ransomware attacks like Flamingo.

Last updated: December 30, 2025

Detection coverage

Elastio detects Flamingo inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify Flamingo across live data, replicated data, and backups. If this family is in your environment, Elastio finds it before encryption completes. Run a scan against your recovery points to confirm.

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What is Flamingo Ransomware? | Elastio