Buran ransomware yara

rule Buran_bin
{
    meta:
        description = "Buran ransomware"
        author = "James_inthe_box"
        reference = "c201b67cb570829122d710c2259d5342cb7c23a8e524290f0c371e68f410664b"
        date = "2019/07"
        maltype = "Ransomware"

    strings:
        $string1 = "GetLongPathNameA"
        $string2 = "GetDiskFreeSpaceExA"
        $string3 = "oleaut32.dll"
        $string4 = "Sleep"
        $string5 = "StreamUnit"
        $string6 = "Buran"

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

rule Buran_mem
{
    meta:
        description = "Buran ransomware"
        author = "James_inthe_box"
        reference = "c201b67cb570829122d710c2259d5342cb7c23a8e524290f0c371e68f410664b"
        date = "2019/07"
        maltype = "Ransomware"

    strings:
        $string1 = "THIS IS BURAN"

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