Kimsuky yara sig

rule kimsuky_bin
{
    meta:
        description = "Kimsuky"
        author = "James_inthe_box"
        reference = "cf87475a87cb2172e73ee6afa7eb6384"
        date = "2020/02"
        maltype = "APT jazz"

    strings:
        $string1 = "tmp.LOG"
        $string2 = "%s_tiger"
        $string3 = "%s_lion"
        $string4 = "&NOTE="

    condition:
        uint16(0) == 0x5A4D and all of ($string*) and filesize < 800KB
}

rule kimsuky_mem
{
    meta:
        description = "Kimsuky"
        author = "James_inthe_box"
        reference = "cf87475a87cb2172e73ee6afa7eb6384"
        date = "2020/02"
        maltype = "APT jazz"

    strings:
        $string1 = "tmp.LOG"
        $string2 = "%s_tiger"
        $string3 = "%s_lion"
        $string4 = "&NOTE="

    condition:
        all of ($string*) and filesize > 800KB
}