Sakurel_backdoor

YARA detection rule by Yara-Rules · GPL-2.0

malware creates a process in the temp directory and performs the sysprep UAC bypass method.

rule Sakurel_backdoor
{
	meta:
		maltype = "Sakurel backdoor"
    ref = "https://github.com/reed1713"
		reference = "http://www.microsoft.com/security/portal/threat/encyclopedia/entry.aspx?Name=Trojan:Win32/Sakurel.A#tab=2"
		description = "malware creates a process in the temp directory and performs the sysprep UAC bypass method."
	strings:
		$type="Microsoft-Windows-Security-Auditing"
		$eventid="4688"
		$data="Windows\\System32\\sysprep\\sysprep.exe" nocase

		$type1="Microsoft-Windows-Security-Auditing"
		$eventid1="4688"
		$data1="AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe" nocase
	condition:
		all of them
}

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

0a34d935-2569-4ab2-a83c-45f53b148604

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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

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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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