win_overlay_rat_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_overlay_rat_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.overlay_rat"
    malpedia_rule_date = "20201014"
    malpedia_hash      = "a7e3bd57eaf12bf3ea29a863c041091ba3af9ac9"
    malpedia_version   = "20201014"
    malpedia_license   = "CC BY-SA 4.0"
    malpedia_sharing   = "TLP:WHITE"
  

  strings:
    $sequence_0 = { 48 0f 84 c5 00 00 00 48 0f 84 f2 00 00 00 e9 ?? ?? ?? ?? 8b 83 d4 03 00 00 ba ?? ?? ?? ?? }
                                    $sequence_1 = { 8b 10 ff 52 24 03 c6 3b 45 ec 7f 3a 8b 55 fc }
                                $sequence_2 = { 8b 83 e0 03 00 00 ba 10 00 00 00 e8 ?? ?? ?? ?? 8b 83 e0 03 00 00 33 d2 e8 ?? ?? ?? ?? 8b 83 e0 03 00 00 }
                                    $sequence_3 = { 89 84 24 94 00 00 00 8b 44 24 60 89 84 24 98 00 00 00 8d 54 24 74 8b 83 a0 02 00 00 b9 04 00 00 00 8b 38 }
                                    $sequence_4 = { 80 f2 01 83 e2 7f 0b 04 95 64 ca 6e 10 8b 55 fc 89 42 08 8b 45 fc c7 40 0c 03 00 00 00 }
                                    $sequence_5 = { 66 ba eb ff e8 ?? ?? ?? ?? 8b 83 f8 03 00 00 66 c7 80 8a 00 00 00 eb ff 89 98 24 01 00 00 c7 80 20 01 00 00 30 05 6c 10 8b 83 fc 03 00 00 }
                                    $sequence_6 = { 6a 00 0f b6 8b d9 02 00 00 8b 93 dc 02 00 00 8b 83 e4 02 00 00 e8 ?? ?? ?? ?? 89 83 dc 02 00 00 6a 01 }
                                    $sequence_7 = { 8d 55 ec 8b 86 34 04 00 00 e8 ?? ?? ?? ?? ff 75 ec 8d 45 f0 ba 04 00 00 00 e8 ?? ?? ?? ?? }
                                    $sequence_8 = { f5 1b c0 50 8b 06 0f b6 40 34 8b 04 85 58 d1 6e 10 }
                                $sequence_9 = { f7 d7 0b 7c 24 14 33 7c 24 10 03 c7 03 44 24 54 05 f3 3e 70 6d 8b f8 }
                
  condition:
    7 of them and filesize < 10592256
}

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

b59eaa99-1af3-4714-b823-21788e65ce43

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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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