MALPEDIA_Win_Megumin_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_Megumin_Auto: FILE {
  meta:
    description        = "autogenerated rule brought to you by yara-signator"
    author             = "Felix Bilstein - yara-signator at cocacoding dot com"
    id                 = "992bacc8-d168-5613-b9a1-b270fb7e71d1"
    date               = "2023-12-06"
    modified           = "2023-12-08"
    reference          = "https://malpedia.caad.fkie.fraunhofer.de/details/win.megumin"
    source_url         = "https://github.com/malpedia/signator-rules//blob/fbacfc09b84d53d410385e66a8e56f25016c588a/rules/win.megumin_auto.yar#L1-L130"
    license_url        = "N/A"
    logic_hash         = "d3f02e69acad5c637179e097455fd85b104ce227d90fce5cb059c87c08c3436c"
    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 34 85 10 16 46 00 03 75 20 6b 45 24 3c 03 45 28 6b c0 3c 03 45 2c }
    $sequence_1 = { 89 45 e8 57 8d 4d d8 c7 45 fc 00 00 00 00 e8 ?? ?? ?? ?? 8b 45 e8 85 c0 }
    $sequence_2 = { 8d 45 f4 64 a3 00 00 00 00 68 41 01 00 00 8d 85 28 fa ff ff c7 45 fc 00 00 00 00 6a 00 50 }
    $sequence_3 = { 8d 4d d8 8d 45 c0 50 e8 ?? ?? ?? ?? ff 37 8d 55 d7 8d 4d b0 }
    $sequence_4 = { c6 01 00 e8 ?? ?? ?? ?? 8d 4c 24 30 e8 ?? ?? ?? ?? 8b c8 83 c4 18 83 79 14 10 }
    $sequence_5 = { 83 3d ?? ?? ?? ?? 00 0f 85 49 87 00 00 8d 0d 90 e7 45 00 ba 1d 00 00 00 e9 ?? ?? ?? ?? 83 3d ?? ?? ?? ?? 00 0f 85 2c 87 00 00 }
    $sequence_6 = { 83 c4 04 8d 8d 14 fd ff ff c6 45 fc 1a 51 8b d0 8d 8d 04 fb ff ff }
    $sequence_7 = { 0f 1f 44 00 00 88 45 eb 8b 41 0c 89 7d a8 89 45 b0 c6 45 fc 02 }
    $sequence_8 = { 8d 41 01 89 45 d8 3d ff ff ff 7f 0f 87 00 01 00 00 6a 00 6a 00 50 }
    $sequence_9 = { 3b ca 76 3b 8b d1 a8 1f 75 35 8b 48 fc }

  condition:
    7 of them and filesize < 1007616
}

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

0df63346-fe00-4270-b530-3e1364c2c821

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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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