MALPEDIA_Win_Beatdrop_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_Beatdrop_Auto: FILE {
  meta:
    description        = "autogenerated rule brought to you by yara-signator"
    author             = "Felix Bilstein - yara-signator at cocacoding dot com"
    id                 = "b3142cf9-1fa2-58bd-9f49-d91bf2cf24b1"
    date               = "2023-12-06"
    modified           = "2023-12-08"
    reference          = "https://malpedia.caad.fkie.fraunhofer.de/details/win.beatdrop"
    source_url         = "https://github.com/malpedia/signator-rules//blob/fbacfc09b84d53d410385e66a8e56f25016c588a/rules/win.beatdrop_auto.yar#L1-L124"
    license_url        = "N/A"
    logic_hash         = "171eb025ab1384be132ed16b4793a3dd033a6c86c2974208fbbb41bec30e49af"
    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 = { e8 ?? ?? ?? ?? 4c 89 f1 e8 ?? ?? ?? ?? 4c 8d 05 71 aa ff ff }
    $sequence_1 = { 47 33 bc 84 00 0c 00 00 41 89 c1 45 89 f0 41 c1 e9 18 44 33 be bc 00 00 00 41 c1 e8 10 }
    $sequence_2 = { 0f b6 c0 41 33 94 b5 00 0c 00 00 c1 eb 18 33 55 2c 41 33 94 85 00 04 00 00 44 89 c0 }
    $sequence_3 = { 41 89 d3 0f b6 ce 41 c1 e8 18 41 c1 eb 18 47 8b 4c 85 00 45 89 f8 43 8b 5c 9d 00 }
    $sequence_4 = { 41 89 d3 c1 ea 18 41 c1 eb 10 33 5e 78 41 8b 14 94 43 33 94 8c 00 0c 00 00 45 0f b6 db }
    $sequence_5 = { 44 89 cb 33 46 10 41 c1 eb 18 45 0f b6 d2 0f b6 df 43 33 84 94 00 04 00 00 }
    $sequence_6 = { 41 c1 e8 18 41 89 cf 44 89 d1 47 8b 04 84 47 33 84 8c 00 0c 00 00 45 89 d1 }
    $sequence_7 = { 48 8b 3d ?? ?? ?? ?? 89 d8 49 89 ce 49 89 d5 48 8b 0d ?? ?? ?? ?? 4c 89 c6 4c 89 cd }
    $sequence_8 = { 49 83 44 24 10 10 eb 11 49 8d 4c 24 08 e8 ?? ?? ?? ?? eb 05 49 ff 44 24 18 }
    $sequence_9 = { e8 ?? ?? ?? ?? 48 85 c0 75 2c 4c 8b 4b 08 41 b8 13 00 00 00 }

  condition:
    7 of them and filesize < 584704
}

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

5530572e-7916-492a-bf22-0859d2b413fe

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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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