MALPEDIA_Win_Shadowhammer_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_Shadowhammer_Auto: FILE {
  meta:
    description        = "autogenerated rule brought to you by yara-signator"
    author             = "Felix Bilstein - yara-signator at cocacoding dot com"
    id                 = "194406b6-a98b-5404-b2f3-d5df631c65c0"
    date               = "2023-12-06"
    modified           = "2023-12-08"
    reference          = "https://malpedia.caad.fkie.fraunhofer.de/details/win.shadowhammer"
    source_url         = "https://github.com/malpedia/signator-rules//blob/fbacfc09b84d53d410385e66a8e56f25016c588a/rules/win.shadowhammer_auto.yar#L1-L118"
    license_url        = "N/A"
    logic_hash         = "34aeb940c0c6ad0698f1f0e3ab023525d38575b33eb7ba408d437819a37427e5"
    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 = { 03 d3 03 f3 03 fb 89 4d fc 89 45 f4 }
    $sequence_1 = { c3 e8 ?? ?? ?? ?? c2 10 00 8b ff 55 8b ec 83 3d ?? ?? ?? ?? 01 }
    $sequence_2 = { 8d bd 7d fd ff ff ab ab ab ab }
    $sequence_3 = { 58 6a 2d 66 89 45 84 58 }
    $sequence_4 = { 68 5a c1 cb c2 56 e8 ?? ?? ?? ?? 59 59 85 c0 }
    $sequence_5 = { c7 85 64 ff ff ff 10 3e e0 fc c7 85 68 ff ff ff b0 cf 41 61 c7 85 6c ff ff ff b0 fa fb 19 8d bd 70 ff ff ff }
    $sequence_6 = { 8d 45 e8 50 ff 75 fc 89 5d e8 8b 07 }
    $sequence_7 = { c7 85 44 fd ff ff 6a 0a d7 40 c7 85 48 fd ff ff 66 7a ad bd 33 c0 8d bd 4c fd ff ff ab 88 9d 50 fd ff ff 8d bd 51 fd ff ff }
    $sequence_8 = { 8d bd fc fd ff ff ab 88 9d 00 fe ff ff 8d bd 01 fe ff ff ab ab }
    $sequence_9 = { 89 45 a8 8d 85 74 ff ff ff 33 ff 89 45 ac 8d 45 b8 }

  condition:
    7 of them and filesize < 49152
}

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

a1dc5d27-40a2-4156-89b9-e59e5fb9c2e7

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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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