MALPEDIA_Win_Yty_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_Yty_Auto: FILE {
  meta:
    description        = "autogenerated rule brought to you by yara-signator"
    author             = "Felix Bilstein - yara-signator at cocacoding dot com"
    id                 = "02d4730a-30ed-52fc-baae-eabe1247d262"
    date               = "2023-12-06"
    modified           = "2023-12-08"
    reference          = "https://malpedia.caad.fkie.fraunhofer.de/details/win.yty"
    source_url         = "https://github.com/malpedia/signator-rules//blob/fbacfc09b84d53d410385e66a8e56f25016c588a/rules/win.yty_auto.yar#L1-L501"
    license_url        = "N/A"
    logic_hash         = "379d5918b4988ca6f478472e8b6e04b973c7dd65b7661d4073d168551cfe004f"
    score              = 75
    quality            = 50
    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  = { 0f 84 0c 00 00 00 83 65 d8 fe 8b 75 08 e9 ?? ?? ?? ?? }
    $sequence_1  = { 8d 45 f4 64 a3 00 00 00 00 8b 75 08 33 ff 89 7d d8 }
    $sequence_2  = { 89 75 e0 85 c9 74 07 8b 11 8b 42 04 ff d0 c7 45 fc 00 00 00 00 }
    $sequence_3  = { 66 89 10 8b c6 5b 8b e5 5d c2 04 00 }
    $sequence_4  = { ff d2 8b 85 68 ff ff ff 8b 08 8b 51 08 50 }
    $sequence_5  = { eb 69 8a 14 02 2a d1 8b fe 80 ea 13 }
    $sequence_6  = { 6a 00 8d 45 08 c7 46 14 0f 00 00 00 c7 46 10 00 00 00 00 }
    $sequence_7  = { 75 0c 68 0e 00 07 80 e8 ?? ?? ?? ?? 33 ff c7 45 fc ff ff ff ff }
    $sequence_8  = { 80 ea 04 b9 04 00 00 00 eb 23 8b 55 08 39 7d 1c 73 03 }
    $sequence_9  = { 85 c0 52 0f 95 c3 ff d6 }
    $sequence_10 = { 2a d1 8b fe 80 ea 04 b9 01 00 00 00 e9 ?? ?? ?? ?? }
    $sequence_11 = { 40 3b 46 10 0f 82 db fe ff ff 39 7d 1c }
    $sequence_12 = { 83 c4 0c 8d 8d e8 fd ff ff 51 53 53 }
    $sequence_13 = { 8b 4e 10 39 7e 14 72 11 8a 14 02 8b 3e }
    $sequence_14 = { 89 46 08 89 45 fc 56 c7 45 f0 01 00 00 00 }
    $sequence_15 = { 8b cf e8 ?? ?? ?? ?? 8b 0e 8b 51 04 8b 44 32 38 }
    $sequence_16 = { 53 50 e8 ?? ?? ?? ?? 83 c4 0c 8d 8d e8 fd ff ff }
    $sequence_17 = { 73 03 8d 55 08 8b 4e 10 39 7e 14 72 14 }
    $sequence_18 = { 8b fe 8a 14 02 2a d1 80 ea 13 33 c9 88 14 07 }
    $sequence_19 = { 8b 4c 31 38 33 db 89 5d e8 88 5d ef 89 75 e0 }
    $sequence_20 = { 80 7d ef 00 8b 5d e8 75 03 83 cb 02 8b 16 8b 4a 04 }
    $sequence_21 = { c0 ea 02 8a c4 80 e2 0f c0 e0 04 }
    $sequence_22 = { 8b 07 eb 02 8b c7 8b 4d e0 }
    $sequence_23 = { 8b 4c 19 38 89 5d d4 85 c9 74 05 8b 01 ff 50 04 c7 45 fc 00 00 00 00 }
    $sequence_24 = { 8b 85 c4 f5 ff ff 50 e8 ?? ?? ?? ?? 83 c4 04 8d 95 c0 f5 ff ff 33 c9 52 }
    $sequence_25 = { 8b cc 89 75 f4 50 e8 ?? ?? ?? ?? ff 75 10 8d 4d d4 }
    $sequence_26 = { 76 2a 8b 4d 08 8b 51 08 8a 82 10 a0 46 00 2c 01 88 45 ff 8b 4d 08 }
    $sequence_27 = { 68 ?? ?? ?? ?? ff 15 ?? ?? ?? ?? 3b f4 e8 ?? ?? ?? ?? 8b f4 8b 45 94 50 }
    $sequence_28 = { b9 ?? ?? ?? ?? e8 ?? ?? ?? ?? 51 8d 8d 90 bc f0 ff }
    $sequence_29 = { 6b f6 30 8b 0c 8d 60 cb 43 00 80 64 31 28 fd 5f }
    $sequence_30 = { 8b ec 8b 45 08 8b c8 83 e0 1f c1 f9 05 8b 0c 8d a0 24 43 00 }
    $sequence_31 = { 83 e6 1f 8d 3c 8d a0 24 43 00 8b 0f c1 e6 06 83 3c 0e ff 75 35 83 3d ?? ?? ?? ?? 01 }
    $sequence_32 = { c7 45 e4 01 00 00 00 e9 ?? ?? ?? ?? c7 45 e0 00 00 00 00 8b 15 ?? ?? ?? ?? a1 ?? ?? ?? ?? 01 d0 }
    $sequence_33 = { ff 15 ?? ?? ?? ?? 85 c0 0f 85 e3 02 00 00 68 ?? ?? ?? ?? 50 50 ff 15 ?? ?? ?? ?? }
    $sequence_34 = { 8b 48 04 8d 41 90 89 84 0d f0 b8 f0 ff 8d 8d 04 b9 f0 ff e8 ?? ?? ?? ?? 8b 85 f4 b8 f0 ff 8b 40 04 }
    $sequence_35 = { 0f 85 1f 04 00 00 8d 85 3c fe ff ff 83 c0 1c 89 04 24 }
    $sequence_36 = { 8b 4d 0c 83 e1 3f 6b d1 30 8b 04 85 00 b0 46 00 }
    $sequence_37 = { 3b f4 e8 ?? ?? ?? ?? 8b f4 8b 85 74 fc ff ff 50 ff 15 ?? ?? ?? ?? 3b f4 }
    $sequence_38 = { 01 ca 0f b6 12 89 d1 8b 55 0c 01 ca 88 10 }
    $sequence_39 = { 74 0c c7 85 d4 dd ff ff ac 08 45 00 eb 0a c7 85 d4 dd ff ff d4 d4 44 00 8b 85 a4 dd ff ff 50 }
    $sequence_40 = { 8b 45 08 89 04 24 e8 ?? ?? ?? ?? 89 45 d8 83 7d d8 00 0f 84 7a 05 00 00 }
    $sequence_41 = { e8 ?? ?? ?? ?? c7 85 62 fe ff ff 00 00 00 00 8d 85 66 fe ff ff b9 60 00 00 00 bb 00 00 00 00 }
    $sequence_42 = { 8d 8d a8 ef ff ff e8 ?? ?? ?? ?? 50 8d 8d d0 ef ff ff e8 ?? ?? ?? ?? 8d 8d a8 ef ff ff e9 ?? ?? ?? ?? }
    $sequence_43 = { e8 ?? ?? ?? ?? 83 ec 0c 8d 8d dc fb ff ff 0f 10 00 0f 11 05 ?? ?? ?? ?? f3 0f 7e 40 10 }
    $sequence_44 = { f3 ab c7 45 f8 00 00 00 00 c7 45 d4 00 00 00 00 8b 45 0c }
    $sequence_45 = { e8 ?? ?? ?? ?? c7 83 24 02 00 00 ff ff ff ff c7 83 28 02 00 00 ff ff ff ff 83 c4 14 5b }
    $sequence_46 = { 56 53 83 ec 14 8b 5c 24 20 e8 ?? ?? ?? ?? 85 db c7 00 00 00 00 00 }
    $sequence_47 = { e9 ?? ?? ?? ?? 89 75 e4 33 c0 39 b8 80 f9 42 00 }
    $sequence_48 = { 75 0c c7 85 bc dd ff ff 60 08 45 00 eb 0a c7 85 bc dd ff ff d4 d4 44 00 b8 02 00 00 00 }
    $sequence_49 = { 83 e6 3f c1 ff 06 6b f6 30 8b 04 bd 60 cb 43 00 f6 44 30 28 80 74 1f e8 ?? ?? ?? ?? }
    $sequence_50 = { 8d 15 f0 22 41 00 e8 ?? ?? ?? ?? 58 5a }
    $sequence_51 = { 83 e8 26 89 c2 a1 ?? ?? ?? ?? c7 44 24 08 00 00 00 00 89 54 24 04 89 04 24 e8 ?? ?? ?? ?? }
    $sequence_52 = { 0f 87 b1 03 00 00 ff 24 bd 41 57 42 00 8b 41 e4 3b 42 e4 74 78 0f b6 42 e4 0f b6 71 e4 }
    $sequence_53 = { 57 89 7d e8 ff 15 ?? ?? ?? ?? 8b d0 89 55 ec c6 45 fc 01 c7 46 14 0f 00 00 00 }
    $sequence_54 = { c7 45 dc 03 00 00 00 eb 7c c7 45 e0 88 04 43 00 eb bb d9 e8 }

  condition:
    7 of them and filesize < 1097728
}

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

7eed884a-5def-473c-8ebc-78aff1816973

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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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