HavexModuleOutlook

YARA detection rule by HydraDragonAntivirus · GPL-2.0

Rule HavexModuleOutlook (No description metadata provided).

import "hash"
rule HavexModuleOutlook {
  meta:
    Author    = "Intezer Analyze"
    Reference = "https://apt-ecosystem.com"

  strings:
    $block_0  = { 8B ?? ?? 03 ?? 0F AF ?? 8D ?? ?? E8 ?? ?? ?? ?? 83 ?? ?? ?? 8B ?? ?? 89 ?? ?? 8B ?? ?? 72 }
    $block_1  = { 8B ?? ?? 33 ?? 66 ?? ?? ?? 8B ?? ?? 0F B6 ?? ?? C1 ?? ?? C1 ?? ?? 0B ?? FF 0? ?? 4? 79 }
    $block_2  = { 89 ?? ?? ?? ?? ?? 8B ?? ?? 8D ?? ?? E8 ?? ?? ?? ?? 83 ?? ?? ?? FF 4? ?? 0F 85 }
    $block_3  = { 8B ?? ?? 33 ?? 89 ?? ?? 89 ?? ?? 89 ?? ?? 89 ?? ?? ?? ?? ?? 38 ?? ?? 0F 84 }
    $block_4  = { E8 ?? ?? ?? ?? 8B ?? ?? 2B ?? ?? 6A ?? 99 5? F7 ?? FF 7? ?? 3B ?? 0F 83 }
    $block_5  = { 8B ?? ?? ?? ?? ?? 5? 33 ?? 5? E8 ?? ?? ?? ?? 81 C? ?? ?? ?? ?? C9 C3 }
    $block_6  = { 66 ?? ?? ?? 8B ?? ?? ?? ?? ?? 66 ?? ?? ?? 4? 83 ?? ?? 0F B7 ?? 0F 8C }
    $block_7  = { 5? 8B ?? 83 ?? ?? 5? 5? 33 ?? 8D ?? ?? AB AB AB AB 83 ?? ?? ?? C7 }
    $block_8  = { 33 ?? 83 ?? ?? ?? 0F 95 ?? 4? 83 ?? ?? 83 ?? ?? 89 ?? ?? EB }
    $block_9  = { 8B ?? ?? 2B ?? ?? 6A ?? 99 5? F7 ?? FF 7? ?? 3B ?? 0F 83 }
    $block_10 = { 8B ?? E8 ?? ?? ?? ?? 0F B7 ?? 0F B7 ?? 83 ?? ?? 3B ?? 7F }
    $block_11 = { 8D ?? ?? 8B ?? E8 ?? ?? ?? ?? 83 ?? ?? FF 4? ?? 0F 85 }
    $block_12 = { 0F B6 ?? 8B ?? ?? ?? ?? ?? C1 ?? ?? 4? 83 ?? ?? 7C }
    $block_13 = { 8B ?? ?? 8B ?? ?? 33 ?? 5? E8 ?? ?? ?? ?? C9 C3 }

  condition:
    hash.sha256(0, filesize) == "0859cb511a12f285063ffa8cb2a5f9b0b3c6364f8192589a7247533fda7a878e" or
    12 of them
}

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

2a7a7469-9f9c-4952-b5b0-815ab4dc40c9

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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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