Sponsored by Hudson Rock – Use Hudson Rock's free cybercrime intelligence tools to learn how Infostealer infections are leading to ransomware attacks
fsteam.yar/*
fsteam ransomware
*/
rule fsteam_Ransomnote
{
meta:
author = "ransomware.live"
family = "ransomware.fsteam"
description = "Detects fsteam ransomware ransom note or artifact"
date = "2026-05-04"
severity = 7
score = 70
strings:
$name1 = "fsteam" ascii nocase
$name2 = "FSTEAM" ascii
$onion = "fsteam.onion" ascii nocase
condition:
any of them
}