MALPEDIA_Win_Redcurl_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_Redcurl_Auto: FILE {
  meta:
    description        = "autogenerated rule brought to you by yara-signator"
    author             = "Felix Bilstein - yara-signator at cocacoding dot com"
    id                 = "efe32a98-15fa-5dd0-a3ff-0a4fdcaec5ff"
    date               = "2023-12-06"
    modified           = "2023-12-08"
    reference          = "https://malpedia.caad.fkie.fraunhofer.de/details/win.redcurl"
    source_url         = "https://github.com/malpedia/signator-rules//blob/fbacfc09b84d53d410385e66a8e56f25016c588a/rules/win.redcurl_auto.yar#L1-L190"
    license_url        = "N/A"
    logic_hash         = "550bb424cec4343fdcbf9ff6b82c03a2bb6c5d2f01439a45b43da803dcee1f93"
    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  = { c7 45 f0 00 00 00 00 ff 15 ?? ?? ?? ?? 8b d0 c7 46 10 00 00 00 00 8b ca c7 46 14 0f 00 00 00 }
    $sequence_1  = { 8b ca c7 46 14 0f 00 00 00 c6 06 00 8d 79 01 }
    $sequence_2  = { 99 b9 1a 00 00 00 f7 f9 80 c2 61 88 14 3e 47 }
    $sequence_3  = { 2b c6 48 50 56 }
    $sequence_4  = { ba ?? ?? ?? ?? 66 0f d6 45 e0 e8 ?? ?? ?? ?? 83 c4 04 }
    $sequence_5  = { 48 3b c2 0f 42 d0 0f b6 04 1a 03 d3 }
    $sequence_6  = { ff 15 ?? ?? ?? ?? 6a 00 85 c0 74 4b }
    $sequence_7  = { 50 e8 ?? ?? ?? ?? 8d 0c 3e 83 c4 0c 3b f1 74 10 0f b6 06 }
    $sequence_8  = { 6a 00 0f 43 4d 08 8b f0 6a 00 }
    $sequence_9  = { 0f 57 c0 c7 45 dc 00 00 00 00 68 ?? ?? ?? ?? ba ?? ?? ?? ?? 66 0f d6 45 d4 }
    $sequence_10 = { c7 45 f0 01 00 00 00 e8 ?? ?? ?? ?? c7 45 e8 00 00 00 00 c7 45 ec 0f 00 00 00 c6 45 d8 00 8d 50 01 }
    $sequence_11 = { c7 45 ec 0f 00 00 00 c6 45 d8 00 8d 50 01 8b 46 10 3b c2 72 6f }
    $sequence_12 = { 01 54 24 1c 89 41 04 e9 ?? ?? ?? ?? 8b 44 24 1c }
    $sequence_13 = { 89 54 24 08 f7 d0 03 85 e4 fd ff ff 89 95 a4 fb ff ff 89 44 24 0c }
    $sequence_14 = { 00 c1 83 da 03 2b 54 24 1c 0f 84 44 23 00 00 8b 7c 24 1c }
    $sequence_15 = { 00 c1 83 db 03 2b 9d 34 fd ff ff 89 9d 44 fd ff ff }
    $sequence_16 = { 00 c2 83 de 03 2b b5 00 ff ff ff 89 b5 30 ff ff ff }
    $sequence_17 = { 00 c1 83 de 03 29 de 89 b5 04 fe ff ff }
    $sequence_18 = { 00 c1 8d 85 10 fe ff ff 83 da 03 89 44 24 04 }
    $sequence_19 = { 00 c1 8b 83 00 01 00 00 83 da 03 29 fa 74 68 }

  condition:
    7 of them and filesize < 487424
}

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

83b9912a-c287-45d7-837b-742c8b583d7a

Propose edits, view related rules, and engage with the community through comments.

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 ]]

Community Discussion