cert_blocklist_03b630f9645531f8868dae8ac0f8cfe6

rule cert_blocklist_03b630f9645531f8868dae8ac0f8cfe6 {
    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 "Geksan LLC" and
            pe.signatures[i].serial == "03:b6:30:f9:64:55:31:f8:86:8d:ae:8a:c0:f8:cf:e6" and
            1594252801 <= pe.signatures[i].not_after
        )
}