MALPEDIA_Win_Woodyrat_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 MALPEDIA_Win_Woodyrat_Auto: FILE {
  meta:
    description        = "autogenerated rule brought to you by yara-signator"
    author             = "Felix Bilstein - yara-signator at cocacoding dot com"
    id                 = "ce77dd1e-7a7f-526f-b26a-f53840a84ce1"
    date               = "2023-12-06"
    modified           = "2023-12-08"
    reference          = "https://malpedia.caad.fkie.fraunhofer.de/details/win.woodyrat"
    source_url         = "https://github.com/malpedia/signator-rules//blob/fbacfc09b84d53d410385e66a8e56f25016c588a/rules/win.woodyrat_auto.yar#L1-L132"
    license_url        = "N/A"
    logic_hash         = "f0e3660df6e09cfccf9351d956d7545670538be69e20bfd57639d1e54207defb"
    score              = 75
    quality            = 75
    tags               = "FILE"
    version            = "1"
    tool               = "yara-signator v0.6.0"
    signator_config    = "callsandjumps;datarefs;binvalue"
    malpedia_rule_date = "20231130"
    malpedia_hash      = "fc8a0e9f343f6d6ded9e7df1a64dac0cc68d7351"
    malpedia_version   = "20230808"
    malpedia_license   = "CC BY-SA 4.0"
    malpedia_sharing   = "TLP:WHITE"

  strings:
    $sequence_0 = { 8b 75 ec 89 85 a4 eb ff ff ff b5 bc eb ff ff e8 ?? ?? ?? ?? 8b 7d e4 83 c4 04 83 7d e8 00 }
    $sequence_1 = { 8d 4e 4c 54 6a 00 e8 ?? ?? ?? ?? 8b c8 e8 ?? ?? ?? ?? 8d 4d d8 }
    $sequence_2 = { 8d 47 10 50 8d 45 cc 50 e8 ?? ?? ?? ?? 84 c0 74 03 }
    $sequence_3 = { e8 ?? ?? ?? ?? c6 45 fc 03 8b 55 cc 83 fa 10 72 2c 8b 4d b8 42 }
    $sequence_4 = { 8b 43 28 8b d8 3b fb 74 2d 8b 0f 8b 01 ff 50 08 }
    $sequence_5 = { 8b c8 83 78 14 10 72 02 8b 08 83 78 10 04 75 3b 8b 01 }
    $sequence_6 = { 83 c4 08 8d 45 08 6a 00 84 db 74 28 83 7d 1c 08 68 00 00 00 02 }
    $sequence_7 = { 50 e8 ?? ?? ?? ?? 8b 7d 80 83 c4 04 e9 ?? ?? ?? ?? c6 45 fc 00 }
    $sequence_8 = { 76 07 be 55 55 55 15 eb 07 03 f1 3b f2 0f 42 f2 }
    $sequence_9 = { 74 5d 40 50 e8 ?? ?? ?? ?? 8b f0 8b 45 c8 40 }

  condition:
    7 of them and filesize < 785408
}

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

58c9efb8-cfaa-4a0d-912c-44d4b5c717ae

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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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