Windows_Trojan_Formbook_772cc62d

rule Windows_Trojan_Formbook_772cc62d {
    meta:
        author = "Elastic Security"
        id = "772cc62d-345c-42d8-97ab-f67e447ddca4"
        fingerprint = "3d732c989df085aefa1a93b38a3c078f9f0c3ee214292f6c1e31a9fc1c9ae50e"
        creation_date = "2022-05-23"
        last_modified = "2022-07-18"
        threat_name = "Windows.Trojan.Formbook"
        reference = "https://www.elastic.co/security-labs/formbook-adopts-cab-less-approach"
        severity = 100
        arch_context = "x86, arm64"
        scan_context = "file, memory"
        license = "Elastic License v2"
        os = "windows"
    strings:
        $a1 = "User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; Trident/7.0; rv:11.0) like Gecko"
        $a2 = "signin"
        $a3 = "persistent"
        $r1 = /.\:\\Users\\[^\\]{1,50}\\AppData\\Roaming\\[a-zA-Z0-9]{8}\\[a-zA-Z0-9]{3}log\.ini/ wide
    condition:
        2 of ($a*) and $r1
}