Windows_Trojan_CobaltStrike_949f10e3

rule Windows_Trojan_CobaltStrike_949f10e3 {
    meta:
        author = "Elastic Security"
        id = "949f10e3-68c9-4600-a620-ed3119e09257"
        fingerprint = "34e04901126a91c866ebf61a61ccbc3ce0477d9614479c42d8ce97a98f2ce2a7"
        creation_date = "2021-03-25"
        last_modified = "2021-08-23"
        description = "Identifies the API address lookup function used by Cobalt Strike along with XOR implementation by Cobalt Strike."
        threat_name = "Windows.Trojan.CobaltStrike"
        severity = 100
        arch_context = "x86, arm64"
        scan_context = "file, memory"
        license = "Elastic License v2"
        os = "windows"
    strings:
        $a1 = { 89 E5 31 D2 64 8B 52 30 8B 52 0C 8B 52 14 8B 72 28 0F B7 4A 26 31 FF 31 C0 AC 3C 61 }
        $a2 = { 8B 07 01 C3 85 C0 75 E5 58 C3 E8 [2] FF FF 31 39 32 2E 31 36 38 2E ?? 2E }
    condition:
        all of them
}