MALPEDIA_Win_Himera_Loader_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_Himera_Loader_Auto: FILE {
  meta:
    description        = "autogenerated rule brought to you by yara-signator"
    author             = "Felix Bilstein - yara-signator at cocacoding dot com"
    id                 = "e46aed8f-6384-5100-b12a-1e2dd8afe756"
    date               = "2023-12-06"
    modified           = "2023-12-08"
    reference          = "https://malpedia.caad.fkie.fraunhofer.de/details/win.himera_loader"
    source_url         = "https://github.com/malpedia/signator-rules//blob/fbacfc09b84d53d410385e66a8e56f25016c588a/rules/win.himera_loader_auto.yar#L1-L127"
    license_url        = "N/A"
    logic_hash         = "ec88d24287290abbd140c4f0211e2582e892064d8e933b967abedc9a00192e9f"
    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 ?? ?? ?? ?? 83 c4 08 8b 4d fc 66 89 41 1e 6a 10 }
    $sequence_1 = { 64 a3 00 00 00 00 89 4d e0 c7 45 dc 0c 00 00 00 c6 45 e4 5e c6 45 e5 5d }
    $sequence_2 = { 8b 4d 08 0f b7 14 01 52 e8 ?? ?? ?? ?? 83 c4 08 8b 4d fc 66 89 41 30 }
    $sequence_3 = { 8d 85 dc fd ff ff 50 8d 8d f8 fe ff ff 51 8d 95 f8 fe ff ff 52 8d 8d ef fd ff ff }
    $sequence_4 = { c2 04 00 e8 ?? ?? ?? ?? 85 c0 0f 84 c1 51 00 00 }
    $sequence_5 = { c6 45 eb 1c c6 45 ec 2e 64 a1 2c 00 00 00 8b 08 8b 15 ?? ?? ?? ?? 3b 91 04 00 00 00 7e 4c }
    $sequence_6 = { 50 8d 45 f4 64 a3 00 00 00 00 89 4d e0 c7 45 dc 0a 00 00 00 c6 45 e4 40 c6 45 e5 5a }
    $sequence_7 = { c7 45 9c 49 00 00 00 c6 45 a4 63 c6 45 a5 41 c6 45 a6 54 c6 45 a7 47 c6 45 a8 42 c6 45 a9 42 }
    $sequence_8 = { c6 45 e8 01 c6 45 e9 0e c6 45 ea 18 c6 45 eb 1a c6 45 ec 00 c6 45 ed 1e c6 45 ee 2e }
    $sequence_9 = { c7 45 fc 00 00 00 00 eb 09 8b 45 fc 83 c0 01 89 45 fc 83 7d fc 25 73 21 }

  condition:
    7 of them and filesize < 385024
}

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

823b7a08-afe3-4783-bc7c-7264bc5b6bf5

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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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