win_karkoff_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 win_karkoff_auto {
  meta:
    author             = "Felix Bilstein - yara-signator at cocacoding dot com"
    date               = "2020-10-14"
    version            = "1"
    description        = "autogenerated rule brought to you by yara-signator"
    tool               = "yara-signator v0.5.0"
    signator_config    = "callsandjumps;datarefs;binvalue"
    malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.karkoff"
    malpedia_rule_date = "20201014"
    malpedia_hash      = "a7e3bd57eaf12bf3ea29a863c041091ba3af9ac9"
    malpedia_version   = "20201014"
    malpedia_license   = "CC BY-SA 4.0"
    malpedia_sharing   = "TLP:WHITE"
  

  strings:
    $sequence_0  = { 3a 05 ?? ?? ?? ?? 08 ed 17 02 00 }
                        $sequence_1  = { 00 11 10 01 01 15 ?? ?? ?? ?? 1e 00 15 ?? ?? ?? ?? }
                            $sequence_2  = { 08 a7 12 02 00 92 b3 01 00 1c 17 34 37 05 00 00 00 96 08 d1 }
                                $sequence_3  = { 01 11 81 8d 05 00 00 12 82 c4 05 20 00 12 82 9c 0a 30 01 00 15 11 }
                        $sequence_4  = { 12 82 bd 06 20 01 01 12 82 bd 05 20 00 12 82 c1 06 20 }
                        $sequence_5  = { 35 05 00 00 00 96 08 bb 10 02 00 92 b3 01 00 1c 17 }
                            $sequence_6  = { 12 82 c0 0e 0c 20 02 15 ?? ?? ?? ?? 12 82 c0 0e 02 0a 20 01 15 12 81 11 01 1c 12 }
                                $sequence_7  = { 08 68 14 02 00 92 b3 01 }
                        $sequence_8  = { 08 15 ?? ?? ?? ?? b3 01 00 1c 17 d4 36 05 00 00 00 96 }
                            $sequence_9  = { 12 82 6d 06 00 01 02 12 82 c0 06 20 01 01 12 }
                            $sequence_10 = "ity will be remove"
                                $sequence_11 = { 6a f0 07 68 d7 01 00 00 00 e6 01 ab 65 71 00 f1 07 }
                                $sequence_12 = { 02 12 83 80 10 20 05 01 12 80 80 12 83 70 12 82 d1 0e 12 83 80 10 20 05 01 12 80 80 12 83 70 12 83 }
                                    $sequence_13 = { 04 c0 5b 01 00 00 00 c3 02 92 43 01 00 a4 }
                                $sequence_14 = { b3 01 00 1c 17 ac 37 05 00 00 00 96 08 6d 13 02 00 }
                                    $sequence_15 = { 35 05 00 00 00 96 08 6c 10 02 00 92 b3 01 00 1c 17 b4 35 05 00 00 00 96 }
                
  condition:
    7 of them and filesize < 2383872
}

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

daad2be1-5f86-4469-aba2-578a325b4152

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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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