APT_HackTool_MSIL_FLUFFY_1

rule APT_HackTool_MSIL_FLUFFY_1
{
    meta:
        date = "2020-12-04"
        modified = "2020-12-04"
        md5 = "11b5aceb428c3e8c61ed24a8ca50553e"
        reference = "https://www.fireeye.com/blog/products-and-services/2020/12/fireeye-shares-details-of-recent-cyber-attack-actions-to-protect-community.html"
        author = "FireEye"
        id = "6593202d-9b30-59ed-98c0-3e730fb5ceb7"
    strings:
        $sb1 = { 0E ?? 1? 72 [4] 28 [2] 00 06 [0-16] 28 [2] 00 0A [2-80] 1F 58 0? [0-32] 28 [2] 00 06 [2-32] 1? 28 [2] 00 06 0? 0? 6F [2] 00 06 [2-4] 1F 0B }
        $sb2 = { 73 [2] 00 06 13 ?? 11 ?? 11 ?? 7D [2] 00 04 11 ?? 73 [2] 00 0A 7D [2] 00 04 0E ?? 2D ?? 11 ?? 7B [2] 00 04 72 [4] 28 [2] 00 0A [2-32] 0? 28 [2] 00 0A [2-16] 11 ?? 7B [2] 00 04 0? 28 [2] 00 0A 1? 28 [2] 00 0A [2-32] 7E [2] 00 0A [0-32] FE 15 [2] 00 02 [0-16] 7D [2] 00 04 28 [2] 00 06 [2-32] 7B [2] 00 04 7D [2] 00 04 [2-32] 7C [2] 00 04 FE 15 [2] 00 02 [0-16] 11 ?? 8C [2] 00 02 28 [2] 00 0A 28 [2] 00 0A [2-80] 8C [2] 00 02 28 [2] 00 0A 12 ?? 12 ?? 12 ?? 28 [2] 00 06 }
        $ss1 = "\x00Fluffy\x00"
    condition:
        (uint16(0) == 0x5A4D and uint32(uint32(0x3C)) == 0x00004550) and all of them
}