APT_Project_Sauron_Custom_M1

YARA detection rule by FLorian Roth · GPL-2.0

Detects malware from Project Sauron APT

rule APT_Project_Sauron_Custom_M1 
{

    meta:
        description = "Detects malware from Project Sauron APT"
        author = "FLorian Roth"
        reference = "https://goo.gl/eFoP4A"
        date = "2016-08-09"
        hash1 = "9572624b6026311a0e122835bcd7200eca396802000d0777dba118afaaf9f2a9"

    strings:
        $s1 = "ncnfloc.dll" fullword wide
        $s4 = "Network Configuration Locator" fullword wide

        $op0 = { 80 75 6e 85 c0 79 6a 66 41 83 38 0a 75 63 0f b7 } 
        $op1 = { 80 75 29 85 c9 79 25 b9 01 } 
        $op2 = { 2b d8 48 89 7c 24 38 44 89 6c 24 40 83 c3 08 89 } 

    condition:
        ( uint16(0) == 0x5a4d and filesize < 200KB and ( all of ($s*) ) and 1 of ($op*) ) or ( all of them )
}

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

6fc505d7-b6ac-49dc-afb2-ac2057503d84

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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 ]]

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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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