cert_blocklist_5da173eb1ac76340ac058e1ff4bf5e1b

rule cert_blocklist_5da173eb1ac76340ac058e1ff4bf5e1b {
    meta:
        author      = "ReversingLabs"
        source      = "ReversingLabs"
        status      = "RELEASED"
        sharing     = "TLP:WHITE"
        category    = "INFO"
        description = "Certificate used for digitally signing malware."

    condition:
        uint16(0) == 0x5A4D and
        for any i in (0..pe.number_of_signatures): (
            pe.signatures[i].subject contains "ALISA LTD" and
            pe.signatures[i].serial == "5d:a1:73:eb:1a:c7:63:40:ac:05:8e:1f:f4:bf:5e:1b" and
            1550793600 <= pe.signatures[i].not_after
        )
}