MALPEDIA_Win_Fishmaster_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_Fishmaster_Auto: FILE {
  meta:
    description        = "autogenerated rule brought to you by yara-signator"
    author             = "Felix Bilstein - yara-signator at cocacoding dot com"
    id                 = "ac4d1a12-e633-54d1-8952-cc6fd81de034"
    date               = "2023-12-06"
    modified           = "2023-12-08"
    reference          = "https://malpedia.caad.fkie.fraunhofer.de/details/win.fishmaster"
    source_url         = "https://github.com/malpedia/signator-rules//blob/fbacfc09b84d53d410385e66a8e56f25016c588a/rules/win.fishmaster_auto.yar#L1-L122"
    license_url        = "N/A"
    logic_hash         = "ee895ce428e3021476e31fc5a4cbc7a0e07349c7fde3100efce8681f3e034d54"
    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 = { 48 83 f8 1f 77 36 49 8b c8 e8 ?? ?? ?? ?? 48 c7 47 10 00 00 00 00 }
    $sequence_1 = { e8 ?? ?? ?? ?? 48 8b c3 4c 8b 43 18 49 83 f8 10 }
    $sequence_2 = { 72 03 49 8b 06 40 88 3c 08 c6 44 08 01 00 e9 ?? ?? ?? ?? 44 0f b6 cf }
    $sequence_3 = { 48 8d 15 6e 22 00 00 48 8b cb ff 15 ?? ?? ?? ?? 48 8d 15 6e 22 00 00 48 8b cb ff 15 ?? ?? ?? ?? 4c 8b e8 }
    $sequence_4 = { 41 57 48 83 ec 60 48 8b fa 48 8b d9 33 f6 89 70 98 48 89 70 b0 }
    $sequence_5 = { 48 83 7f 18 10 72 03 48 8b 07 48 8d 4c 24 38 }
    $sequence_6 = { 0f b6 53 10 8d 42 ff 3c fd 77 18 88 94 0d 84 00 00 00 48 83 c3 14 }
    $sequence_7 = { 46 38 34 00 75 f7 48 8d 95 80 00 00 00 48 8d 4d 20 e8 ?? ?? ?? ?? }
    $sequence_8 = { 48 0f 43 4c 24 40 42 0f b6 44 08 03 42 88 44 09 04 48 8d 44 24 40 48 83 7c 24 58 10 48 0f 43 44 24 40 48 8d 4c 24 40 }
    $sequence_9 = { 4c 8b 45 f8 48 8d 15 ce 20 00 00 48 8b cf ff 15 ?? ?? ?? ?? 48 8b f8 4c 89 74 24 30 44 89 74 24 28 }

  condition:
    7 of them and filesize < 812032
}

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

16bf24a0-0822-41cd-891f-6ed21df3474d

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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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