MALPEDIA_Win_Pebbledash_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_Pebbledash_Auto: FILE {
  meta:
    description        = "autogenerated rule brought to you by yara-signator"
    author             = "Felix Bilstein - yara-signator at cocacoding dot com"
    id                 = "3f16c34e-ab8c-5fd5-9a27-9934f8af2f6b"
    date               = "2023-12-06"
    modified           = "2023-12-08"
    reference          = "https://malpedia.caad.fkie.fraunhofer.de/details/win.pebbledash"
    source_url         = "https://github.com/malpedia/signator-rules//blob/fbacfc09b84d53d410385e66a8e56f25016c588a/rules/win.pebbledash_auto.yar#L1-L129"
    license_url        = "N/A"
    logic_hash         = "477e05e2df7e0e436b23bf26c9707de6486fd65cc8fb3dc50d94f319663b31bc"
    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 = { 25 ff ff 00 00 3b d0 74 0a b8 00 00 00 04 e9 ?? ?? ?? ?? 83 bd 74 fb ff ff 00 75 1a }
    $sequence_1 = { 8b e5 5d c3 55 8b ec 81 ec d0 00 00 00 c6 85 30 ff ff ff 8e }
    $sequence_2 = { 51 e8 ?? ?? ?? ?? 83 c4 18 8d 55 f0 52 8d 85 a4 f3 ff ff 50 }
    $sequence_3 = { 8d 95 a0 f5 ff ff 52 ff 15 ?? ?? ?? ?? 89 85 94 f7 ff ff 83 bd 94 f7 ff ff ff 75 05 }
    $sequence_4 = { a3 ?? ?? ?? ?? 83 3d ?? ?? ?? ?? 00 74 2c 8b 55 f0 89 55 dc 8b 45 dc 89 45 e0 }
    $sequence_5 = { 8d 1c 85 60 9f 42 00 c1 e6 03 8b 03 f6 44 30 04 01 74 69 57 }
    $sequence_6 = { 8b 08 8b 55 0c 8b 41 10 89 02 8d 8d 70 fe ff ff 51 8b 55 0c }
    $sequence_7 = { 8b 45 e8 83 c0 01 89 45 e8 83 7d e8 0e 73 3b }
    $sequence_8 = { 51 e8 ?? ?? ?? ?? 83 c4 0c 81 7d 0c 1e 01 00 00 7f 15 83 7d 10 1e }
    $sequence_9 = { 8b 55 fc 03 55 e4 33 c0 8a 02 83 f8 50 75 3b 8b 4d fc }

  condition:
    7 of them and filesize < 360448
}

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

e11b28fe-0457-410e-b3a6-032940ff94b6

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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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