MALPEDIA_Win_Photoloader_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_Photoloader_Auto: FILE {
  meta:
    description        = "autogenerated rule brought to you by yara-signator"
    author             = "Felix Bilstein - yara-signator at cocacoding dot com"
    id                 = "317a851b-1405-50a0-9b40-ce8155fbfa48"
    date               = "2023-12-06"
    modified           = "2023-12-08"
    reference          = "https://malpedia.caad.fkie.fraunhofer.de/details/win.photoloader"
    source_url         = "https://github.com/malpedia/signator-rules//blob/fbacfc09b84d53d410385e66a8e56f25016c588a/rules/win.photoloader_auto.yar#L1-L159"
    license_url        = "N/A"
    logic_hash         = "c73e7831cd0e2d402a5233934c3321f9665203a6373de35d59f2fa5b935ee161"
    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  = { 0d 00 00 00 05 e9 ?? ?? ?? ?? 8b d7 39 7b 1c 76 40 }
    $sequence_1  = { 8b f7 8d 6f 10 ff 15 ?? ?? ?? ?? 0f 31 }
    $sequence_2  = { c0 c0 03 0f b6 c8 8b c1 83 e1 0f }
    $sequence_3  = { 33 c9 b8 01 00 00 00 0f a2 89 44 24 20 89 5c 24 24 }
    $sequence_4  = { 33 c9 b8 00 00 00 40 0f a2 89 5f 0c }
    $sequence_5  = { 0f a2 89 47 04 33 c9 b8 00 00 00 40 }
    $sequence_6  = { 89 5c 24 24 89 4c 24 28 89 54 24 2c 0f 31 }
    $sequence_7  = { f7 41 14 00 00 00 20 74 07 8b 41 f8 39 01 77 14 }
    $sequence_8  = { 85 d2 74 17 44 8b c2 0f 31 48 c1 e2 20 48 0b c2 88 01 }
    $sequence_9  = { 1b c0 23 44 24 10 3b 03 74 18 }
    $sequence_10 = { 89 03 8d 44 24 2c 50 68 04 01 00 00 ff 15 ?? ?? ?? ?? ff 35 ?? ?? ?? ?? 8d 4c 24 30 }
    $sequence_11 = { 5d c3 8b 4d 08 8b 45 fc 89 01 8b 45 0c }
    $sequence_12 = { c3 55 8b ec 81 ec 18 02 00 00 53 8a d9 }
    $sequence_13 = { 8b 56 04 8d 44 24 0c 8b 0e 55 }
    $sequence_14 = { 51 8d 85 5c ff ff ff 8b f2 68 ?? ?? ?? ?? }
    $sequence_15 = { 56 33 c0 8d 6c 24 0c 57 }

  condition:
    7 of them and filesize < 107520
}

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

7e7d67eb-e4a9-41c6-9bdb-ff36a4aab2ff

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