MALPEDIA_Win_Suncrypt_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_Suncrypt_Auto: FILE {
  meta:
    description        = "autogenerated rule brought to you by yara-signator"
    author             = "Felix Bilstein - yara-signator at cocacoding dot com"
    id                 = "93d1d1b0-e368-5e85-941c-a502b4af6a15"
    date               = "2023-12-06"
    modified           = "2023-12-08"
    reference          = "https://malpedia.caad.fkie.fraunhofer.de/details/win.suncrypt"
    source_url         = "https://github.com/malpedia/signator-rules//blob/fbacfc09b84d53d410385e66a8e56f25016c588a/rules/win.suncrypt_auto.yar#L1-L131"
    license_url        = "N/A"
    logic_hash         = "3fd8ca759efc6a63a6777db0d881129a01860e6b4243db4bd8968c844a421043"
    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 = { ff 15 ?? ?? ?? ?? 6a 00 6a 00 6a 03 6a 00 6a 00 ff 75 b8 }
    $sequence_1 = { 8b 8d 60 ff ff ff 89 45 c8 8b 85 6c ff ff ff 89 45 ac 8b 85 64 ff ff ff 89 45 cc 8b 85 5c ff ff ff }
    $sequence_2 = { c6 45 f8 4c c6 45 f9 0e c6 45 fa 44 c6 45 fb 4c c6 45 fc 4c 8a 45 f4 c6 45 fd 00 }
    $sequence_3 = { 02 ca 0f be c0 33 c8 88 4c 15 ec 42 83 fa 11 72 e8 }
    $sequence_4 = { 89 4d d0 03 4d 98 8b f9 33 7d cc c1 c7 0c 03 c7 89 85 34 ff ff ff }
    $sequence_5 = { c3 8b 07 0f b7 4f 0e 8b 40 04 8b 04 88 89 47 24 }
    $sequence_6 = { 8b 73 08 83 c1 40 8b 7d a0 89 4d f4 8b 4d f0 eb 7e }
    $sequence_7 = { 8b 45 a8 04 11 c6 45 be 00 83 f0 0a 33 d2 88 45 bd 8a 45 ac }
    $sequence_8 = { 66 0f 6d ec 66 0f ef d8 66 0f 6c cc 0f 28 a5 00 fe ff ff 0f 11 18 83 c0 10 0f 10 07 }
    $sequence_9 = { 73 24 8d 0c 10 2b f2 89 4d f0 8b 4d f8 2b ca }

  condition:
    7 of them and filesize < 172032
}

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

188dbb19-252f-4acd-b1c3-79c98e1b7830

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