Nighthawk

YARA detection rule by Nikhil Ashok Hegde <@ka1do9> · NOASSERTION

NightHawk C2

import "pe"
rule Nighthawk
{
    meta:
        author = "Nikhil Ashok Hegde <@ka1do9>"
        description = "NightHawk C2"
        cape_type = "Nighthawk Payload"

    strings:
                $keying_methods = { 85 C9 74 43 83 E9 01 74 1C 83 F9 01 0F 85 }

                $aes_sbox = { 63 7C 77 7B F2 6B 6F C5 30 }
        $aes_inv_sbox = { 52 09 6A D5 30 36 A5 38 BF }

    condition:
        pe.is_pe and
                        for any s in pe.sections: (s.name == ".profile") and
        all of them
}

[[ currentRule.title && currentRule.title.length > 60 ? currentRule.title.slice(0, 60) + '…' : currentRule.title ]]

4eda8ba1-d014-4e63-b63a-9533653b3a36

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Executable code, not a declarative rule

This submission is arbitrary [[ currentRule.format ? currentRule.format.toUpperCase() : '' ]] code, not a declarative detection rule — review it as you would any script before running it, and note that it cannot be safely aggregated or auto-executed alongside YARA/Sigma/Suricata/CRS rules.

Rejected pattern present

[[ reason ]]

What does this mean?

Format & documentation suggestions

Not a security issue — this rule is valid and was accepted as-is. These are optional fields/conventions its own format recommends, mainly affecting its quality score and how well it documents itself for other reviewers.

[[ reason ]]

What do these messages mean?

[[ currentRule.title && currentRule.title.length > 60 ? currentRule.title.slice(0, 60) + '…' : currentRule.title ]]

[[ currentRule.title ]]

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