Windows_Ransomware_Grief_9953339a

rule Windows_Ransomware_Grief_9953339a {
    meta:
        author = "Elastic Security"
        id = "9953339a-2c67-4ebd-be51-d1055e341abc"
        fingerprint = "d7d70c3681c4d4103d9ff52c3bdd174ccbdb49343c34407e90abb5a83a8422f4"
        creation_date = "2021-08-04"
        last_modified = "2021-10-04"
        threat_name = "Windows.Ransomware.Grief"
        reference_sample = "0864575d4f487e52a1479c61c2c4ad16742d92e16d0c10f5ed2b40506bbc6ca0"
        severity = 100
        arch_context = "x86, arm64"
        scan_context = "file, memory"
        license = "Elastic License v2"
        os = "windows"
    strings:
        $a1 = { 65 64 73 63 6F 72 70 69 6F 71 65 6E 61 62 6C 65 54 72 61 6E 73 6C 61 74 65 2E 41 64 65 65 6D 65 64 59 00 5A 41 70 70 6C 69 63 61 74 69 6F 6E 65 69 74 68 65 72 33 34 2E 30 28 39 39 25 6D 65 6D 6F 72 79 2C 77 69 74 68 6F 75 74 00 66 6F 72 47 6F 6F 67 6C 65 6C 74 68 65 6D 6F 72 65 6D 77 61 73 00 39 32 41 6E 69 6E 65 74 68 65 75 48 73 74 61 62 6C 65 73 6F 66 66 69 63 69 61 6C 00 43 4B 76 65 72 73 69 6F 6E 46 71 74 68 65 63 6F 6D 70 61 6E 79 2C 74 6F 6E 2E 35 30 37 00 6E 69 6E 2D 70 61 67 65 44 73 63 61 6E 6E 69 6E 67 61 63 63 65 73 73 48 69 63 6F 6E 72 65 6D }
    condition:
        all of them
}