Windows_Ransomware_Dharma_b31cac3f

rule Windows_Ransomware_Dharma_b31cac3f : beta {
    meta:
        author = "Elastic Security"
        id = "b31cac3f-6e04-48b2-9d16-1a6b66fa8012"
        fingerprint = "25d23d045c57758dbb14092cff3cc190755ceb3a21c8a80505bd316a430e21fc"
        creation_date = "2020-06-25"
        last_modified = "2021-08-23"
        description = "Identifies DHARMA ransomware"
        threat_name = "Windows.Ransomware.Dharma"
        reference = "https://blog.malwarebytes.com/threat-analysis/2019/05/threat-spotlight-crysis-aka-dharma-ransomware-causing-a-crisis-for-businesses/"
        severity = 100
        arch_context = "x86, arm64"
        scan_context = "file, memory"
        license = "Elastic License v2"
        os = "windows"
    strings:
        $b1 = "sssssbsss" ascii fullword
        $b2 = "sssssbs" ascii fullword
        $b3 = "RSDS%~m" ascii fullword
    condition:
        3 of ($b*)
}