MALPEDIA_Win_Neddnloader_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_Neddnloader_Auto: FILE {
  meta:
    description        = "autogenerated rule brought to you by yara-signator"
    author             = "Felix Bilstein - yara-signator at cocacoding dot com"
    id                 = "8eecbeb9-33c7-5f00-852d-691f303c8b89"
    date               = "2023-12-06"
    modified           = "2023-12-08"
    reference          = "https://malpedia.caad.fkie.fraunhofer.de/details/win.neddnloader"
    source_url         = "https://github.com/malpedia/signator-rules//blob/fbacfc09b84d53d410385e66a8e56f25016c588a/rules/win.neddnloader_auto.yar#L1-L169"
    license_url        = "N/A"
    logic_hash         = "318d1d367a3335dce76e46790f71f42f9c5ddb3e28ec2c109117f64c52aadcd2"
    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  = { 83 c2 04 3b cf 72 f0 8d 43 ff }
    $sequence_1  = { 69 c0 b1 79 37 9e c1 e8 13 03 c9 0f b7 34 11 }
    $sequence_2  = { 8b 55 08 69 c0 b1 79 37 9e c1 e8 13 33 c9 66 89 0c 42 }
    $sequence_3  = { 8d 43 ff 3b c8 73 11 0f b7 02 }
    $sequence_4  = { 8b c1 2b 45 fc 5f 5e }
    $sequence_5  = { eb 02 00 08 8b 45 f8 83 c0 f4 89 7d fc }
    $sequence_6  = { 66 3b c6 75 06 83 c1 02 83 c2 02 3b cb 73 07 }
    $sequence_7  = { 73 11 0f b7 02 0f b7 31 66 3b c6 75 06 83 c1 02 }
    $sequence_8  = { 48 8b f2 41 c1 ed 04 49 2b f0 41 ff c5 48 8b d3 48 8b cf }
    $sequence_9  = { 41 0f b6 c0 41 33 b4 8e 80 3c 01 00 41 33 b4 86 80 48 01 00 41 8b c0 41 33 75 30 c1 e8 08 0f b6 d0 }
    $sequence_10 = { 0f b6 c8 41 0f b6 c0 41 33 bc 8e 80 3c 01 00 41 33 bc 86 80 48 01 00 41 33 7d 60 41 8b c0 }
    $sequence_11 = { 44 8b ce 44 8b c7 48 8b d0 49 8b ce e8 ?? ?? ?? ?? 44 8b f0 }
    $sequence_12 = { 48 8d 3d 24 57 00 00 eb 0e 48 8b 03 48 85 c0 74 02 }
    $sequence_13 = { 0f b6 d0 41 8b c6 45 8b 94 94 80 44 01 00 c1 e8 10 0f b6 c8 8b c5 }
    $sequence_14 = { 48 8d 0d 14 10 01 00 ba a0 0f 00 00 48 8b c5 83 e5 1f 48 c1 f8 05 48 6b ed 58 }
    $sequence_15 = { ff 53 48 b9 7f 00 00 00 ff 15 ?? ?? ?? ?? eb 1e 48 8b 53 50 49 8b cd ff 53 48 }

  condition:
    7 of them and filesize < 3438592
}

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

baa07154-a2ba-4e2f-8814-d79049770462

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