MALPEDIA_Win_Cameleon_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_Cameleon_Auto: FILE {
  meta:
    description        = "autogenerated rule brought to you by yara-signator"
    author             = "Felix Bilstein - yara-signator at cocacoding dot com"
    id                 = "65617330-75c8-57cf-8907-1895d87814f0"
    date               = "2023-12-06"
    modified           = "2023-12-08"
    reference          = "https://malpedia.caad.fkie.fraunhofer.de/details/win.cameleon"
    source_url         = "https://github.com/malpedia/signator-rules//blob/fbacfc09b84d53d410385e66a8e56f25016c588a/rules/win.cameleon_auto.yar#L1-L129"
    license_url        = "N/A"
    logic_hash         = "1c72ed0d3ea99fe45b9cdedee31a0c82e32752220a6d117c9414b55a84125b1d"
    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 = { 53 56 57 8b f9 89 7d f0 c7 45 ec 00 00 00 00 8b 07 }
    $sequence_1 = { 8a 80 f8 c7 04 10 88 07 47 46 8b cb c6 45 83 01 e8 ?? ?? ?? ?? }
    $sequence_2 = { 83 ec 18 8b d4 89 65 ec c7 42 10 00 00 00 00 c7 42 14 00 00 00 00 }
    $sequence_3 = { 8d 7d d0 83 7d e4 08 0f 43 7d d0 83 ec 18 8b d4 c7 42 10 00 00 00 00 c7 42 14 00 00 00 00 }
    $sequence_4 = { 48 a3 ?? ?? ?? ?? ff 15 ?? ?? ?? ?? 8b 0d ?? ?? ?? ?? 89 04 8d 98 ce 05 10 5d c3 }
    $sequence_5 = { 24 7f 88 44 16 28 eb 12 0c 80 88 44 16 28 8b 0c bd 50 d6 05 10 c6 44 11 29 00 }
    $sequence_6 = { b8 3b 00 00 00 66 3b c8 0f 94 c0 84 c0 74 31 }
    $sequence_7 = { 8d 55 dc c6 45 fc 02 8d 8d 24 ff ff ff e8 ?? ?? ?? ?? 8b c8 8b 01 }
    $sequence_8 = { 8b d9 56 57 83 7b 38 00 0f 84 8c 01 00 00 80 7b 3d 00 0f 84 82 01 00 00 }
    $sequence_9 = { 5d c2 04 00 85 ff 75 d4 89 7e 10 83 7e 14 08 72 0f }

  condition:
    7 of them and filesize < 824320
}

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

2a8be06a-2037-4883-b414-c3c8c3a16445

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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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