osx_bella_auto

YARA detection rule by Felix Bilstein - yara-signator at cocacoding dot com · GPL-2.0

autogenerated rule brought to you by yara-signator

rule osx_bella_auto {
  meta:
    author             = "Felix Bilstein - yara-signator at cocacoding dot com"
    date               = "2020-08-17"
    version            = "1"
    description        = "autogenerated rule brought to you by yara-signator"
    tool               = "yara-signator v0.4.0"
    signator_config    = "callsandjumps;datarefs;binvalue"
    malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/osx.bella"
    malpedia_rule_date = "20200817"
    malpedia_hash      = "8c895fd01eccb47a6225bcb1a3ba53cbb98644c5"
    malpedia_version   = "20200817"
    malpedia_license   = "CC BY-SA 4.0"
    malpedia_sharing   = "TLP:WHITE"
  

  strings:
    $sequence_0 = { ff e0 48 89 d1 48 89 c3 83 f9 01 0f 85 80 01 00 00 }
                                    $sequence_1 = { 89 c7 48 8b 3d ?? ?? ?? ?? 48 8b 05 ?? ?? ?? ?? 49 }
                                $sequence_2 = { 89 7d c0 48 8b 3d ?? ?? ?? ?? 48 8b 35 ?? ?? ?? ?? 4c }
                                $sequence_3 = { c7 45 cc 00 00 00 00 31 c0 48 89 df 41 ff d4 48 }
                                    $sequence_4 = { 8b 15 ?? ?? ?? ?? 4c 8d 05 9c 27 00 00 4c 8d 0d 40 14 00 00 31 c0 }
                                $sequence_5 = { 89 ff 48 89 c6 4c 89 e1 4d 89 e8 }
                                    $sequence_6 = { 89 c5 4c 89 65 d0 48 8b 35 ?? ?? ?? ?? }
                            $sequence_7 = { 53 48 83 ec 28 48 89 7d c8 48 8b 3d ?? ?? ?? ?? }
                                    $sequence_8 = { 8b 35 ?? ?? ?? ?? 48 8d 15 cf 26 00 00 31 c0 41 ff d4 48 }
                                    $sequence_9 = { 8b 0d ?? ?? ?? ?? 48 8b 15 ?? ?? ?? ?? 4c 8d 2d eb 2c 00 00 }
            
  condition:
    7 of them and filesize < 380864
}

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

adbf06fd-63ba-460b-a54c-58334e407f56

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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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