Windows_Trojan_Blister_68b53e1b

rule Windows_Trojan_Blister_68b53e1b {
    meta:
        author = "Elastic Security"
        id = "68b53e1b-dbd7-4903-ac10-8336c05f42df"
        fingerprint = "b46d59117eda3d6a7a6397287c962106719bf338d19814e20bde9deeebfe65c1"
        creation_date = "2023-08-02"
        last_modified = "2023-08-08"
        threat_name = "Windows.Trojan.Blister"
        reference = "https://www.elastic.co/security-labs/elastic-security-uncovers-blister-malware-campaign"
        reference_sample = "5fc79a4499bafa3a881778ef51ce29ef015ee58a587e3614702e69da304395db"
        severity = 100
        arch_context = "x86, arm64"
        scan_context = "file, memory"
        license = "Elastic License v2"
        os = "windows"
    strings:
        $b_loader_xor = { 48 8B C3 49 03 DC 83 E0 03 8A 44 05 48 [2-3] ?? 03 ?? 4D 2B ?? 75 }
        $b_loader_virtual_protect = { 48 8D 45 50 41 ?? ?? ?? ?? 00 4C 8D ?? 04 4C 89 ?? ?? 41 B9 04 00 00 00 4C 89 ?? F0 4C 8D 45 58 48 89 44 24 20 48 8D 55 F0 }
    condition:
        all of them
}