EXT_NK_GOLDBACKDOOR_inital_shellcode

rule EXT_NK_GOLDBACKDOOR_inital_shellcode {
    meta:
        author= "Silas Cutler (silas@Stairwell.com)"
        description = "Detection for initial shellcode loader used to deploy GOLDBACDOOR"
        version = "0.1"
        date = "2022-04-21"
        reference = "https://stairwell.com/wp-content/uploads/2022/04/Stairwell-threat-report-The-ink-stained-trail-of-GOLDBACKDOOR.pdf"
        score = 80
        id = "daab8e54-11b3-51cc-8bee-55b078f3e791"
    strings:
        $ = { C7 45 C4 25 6C 6F 63 50 8D 45 C4 C7 45 C8 61 6C 61 70 8B F9 C7 45
              CC 70 64 61 74 50 B9 BD 88 17 75 C7 45 D0 61 25 5C 6C 8B DA C7 45 D4 6F
              67 5F 67 C7 45 D8 6F 6C 64 2E C7 45 DC 74 78 74 00 }
        // Import loaders
        $ = { 51 50 57 56 B9 E6 8E 85 35 E8 ?? ?? ?? ?? FF D0 }
        $ = { 6A 40 68 00 10 00 00 52 6A 00 FF 75 E0 B9 E3 18 90 72 E8 ?? ?? ?? ?? FF D0}
    condition:
        all of them
}