MALPEDIA_Win_Andromeda_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_Andromeda_Auto: FILE {
  meta:
    description        = "autogenerated rule brought to you by yara-signator"
    author             = "Felix Bilstein - yara-signator at cocacoding dot com"
    id                 = "06e8a020-0fd4-5226-bdbc-44028f668872"
    date               = "2023-12-06"
    modified           = "2023-12-08"
    reference          = "https://malpedia.caad.fkie.fraunhofer.de/details/win.andromeda"
    source_url         = "https://github.com/malpedia/signator-rules//blob/fbacfc09b84d53d410385e66a8e56f25016c588a/rules/win.andromeda_auto.yar#L1-L309"
    license_url        = "N/A"
    logic_hash         = "b22436b7aba3ed23bef95d1f14e5fb10f193d85aea0247573fcd01991d4926fb"
    score              = 75
    quality            = 73
    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  = { 74 cf eb cf 33 c0 33 db 33 c9 33 d2 8b 7d 10 }
    $sequence_1  = { 8b 75 08 33 db 36 8a 94 29 00 ff ff ff 02 c2 02 04 33 36 8a b4 28 00 ff ff ff }
    $sequence_2  = { 36 88 b4 28 00 ff ff ff 36 88 94 2b 00 ff ff ff 02 d6 81 e2 ff 00 00 00 36 8a 94 2a 00 ff ff ff 30 14 39 }
    $sequence_3  = { 36 8a 94 2a 00 ff ff ff 30 14 39 41 3b 4d 14 75 c3 }
    $sequence_4  = { 36 8a b4 28 00 ff ff ff 36 88 b4 29 00 ff ff ff 36 88 94 28 00 ff ff ff fe c1 74 08 }
    $sequence_5  = { 36 8a 94 28 00 ff ff ff 02 da 36 8a b4 2b 00 ff ff ff 36 88 b4 28 00 ff ff ff 36 88 94 2b 00 ff ff ff }
    $sequence_6  = { 8d 7d fc b8 fc fd fe ff fd ab 2d 04 04 04 04 e2 f8 fc }
    $sequence_7  = { 8b ec 81 c4 00 ff ff ff 60 b9 40 00 00 00 8d 7d fc b8 fc fd fe ff }
    $sequence_8  = { 60 e8 ?? ?? ?? ?? 5d 81 ed ?? ?? ?? ?? 33 c9 }
    $sequence_9  = { 3c 41 0f 9d c2 85 ca 74 04 04 20 88 06 }
    $sequence_10 = { 50 e8 ?? ?? ?? ?? 83 c4 0c 68 00 00 01 00 e8 ?? ?? ?? ?? }
    $sequence_11 = { 0f b6 46 01 84 c0 79 05 0d 00 ff ff ff }
    $sequence_12 = { 8a 06 33 c9 3c 5a 0f 9e c1 33 d2 }
    $sequence_13 = { 8d 45 d0 50 6a 01 ff 75 08 }
    $sequence_14 = { ff 75 64 50 6a ff 53 56 56 ff d7 }
    $sequence_15 = { 8b 4d fc ff 75 e4 03 c8 51 ff 15 ?? ?? ?? ?? }
    $sequence_16 = { 68 ?? ?? ?? ?? ff 75 f4 e8 ?? ?? ?? ?? ff 75 f4 e8 ?? ?? ?? ?? 68 ?? ?? ?? ?? }
    $sequence_17 = { 6a 00 6a 06 6a 01 6a 02 e8 ?? ?? ?? ?? 89 45 f0 83 f8 ff }
    $sequence_18 = { e8 ?? ?? ?? ?? 6a 06 ff 75 f8 e8 ?? ?? ?? ?? 8d 45 f4 }
    $sequence_19 = { ff 75 f0 e8 ?? ?? ?? ?? c7 45 9c 44 00 00 00 89 45 d4 }
    $sequence_20 = { e8 ?? ?? ?? ?? 83 f8 00 75 26 ff 75 f8 e8 ?? ?? ?? ?? 40 50 }
    $sequence_21 = { 83 f8 ff 74 66 6a 05 ff 75 f0 }
    $sequence_22 = { 6a 05 ff 75 f0 e8 ?? ?? ?? ?? 83 f8 ff 74 57 33 c0 8d 7d 9c }
    $sequence_23 = { 89 45 fc 83 f8 00 0f 84 76 01 00 00 68 04 01 00 00 6a 00 ff 35 ?? ?? ?? ?? e8 ?? ?? ?? ?? }
    $sequence_24 = { 31 45 08 ff 56 0c 8b 7d 04 0b d8 81 fb b5 99 83 9e 75 03 }
    $sequence_25 = { 31 45 0c 31 5d fc ff 56 34 31 45 0c 81 c7 58 53 b2 b3 }
    $sequence_26 = { 81 ef 21 cf d8 56 2b d8 81 ff 1a c8 cf d4 0f 84 ac 00 00 00 }
    $sequence_27 = { 0f 84 18 01 00 00 83 65 f0 00 68 50 02 00 00 6a 08 ff 75 0c ff 56 04 }
    $sequence_28 = { ff 56 0c 0f af f8 8b 45 6c 8b 00 89 45 6c ff 56 38 0f af d8 }
    $sequence_29 = { 3d 00 01 00 00 73 22 88 84 05 ec fe ff ff ff 56 0c }
    $sequence_30 = { 81 fb 15 af 29 5e 0f 85 ae 00 00 00 81 ef 52 ec eb 06 ff 56 34 8b d8 81 cb 15 af 29 5e 8b 45 fc }
    $sequence_31 = { ff 56 34 8b 4d 0c 81 c9 51 db c9 51 0f af c1 89 45 0c }

  condition:
    7 of them and filesize < 204800
}

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

99655858-1c3c-4841-9105-a57020ddb1c9

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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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