Windows_Trojan_CobaltStrike_8751cdf9

rule Windows_Trojan_CobaltStrike_8751cdf9 {
    meta:
        author = "Elastic Security"
        id = "8751cdf9-4038-42ba-a6eb-f8ac579a4fbb"
        fingerprint = "0988386ef4ba54dd90b0cf6d6a600b38db434e00e569d69d081919cdd3ea4d3f"
        creation_date = "2021-03-25"
        last_modified = "2021-08-23"
        description = "Identifies Cobalt Strike wininet reverse shellcode along with XOR implementation by Cobalt Strike."
        threat_name = "Windows.Trojan.CobaltStrike"
        severity = 99
        arch_context = "x86, arm64"
        scan_context = "file, memory"
        license = "Elastic License v2"
        os = "windows"
    strings:
        $a1 = { 68 6E 65 74 00 68 77 69 6E 69 54 68 4C 77 26 07 }
        $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
}