TrojanDownloader_Win32_Upatre_AO

YARA detection rule by roadwy

TrojanDownloader:Win32/Upatre.AO,SIGNATURE_TYPE_PEHSTR_EXT,05 00 05 00 03 00 00

rule TrojanDownloader_Win32_Upatre_AO{
	meta:
		description = "TrojanDownloader:Win32/Upatre.AO,SIGNATURE_TYPE_PEHSTR_EXT,05 00 05 00 03 00 00 "
		
	strings :
		$a_03_0 = {57 ab 33 c0 ab e2 fd 8b 7d ?? 57 ab ab ab ab 8b f8 } 		$a_01_1 = {03 f2 51 57 8b 06 59 33 c1 89 06 03 f2 59 47 e2 f1 } 		$a_12_2 = {3a 5c 54 45 4d 50 5c 90 02 06 2e 65 78 65 90 00 00 } 	condition:
		((#a_03_0  & 1)*1+(#a_01_1  & 1)*2+(#a_12_2  & 1)*2) >=5
 
}

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

8f1151a5-e99e-48d2-b0ad-47f4f1745682

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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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