Backdoor_Win32_Nioupale_A

YARA detection rule by roadwy

Backdoor:Win32/Nioupale.A,SIGNATURE_TYPE_PEHSTR_EXT,05 00 05 00 07 00 00

rule Backdoor_Win32_Nioupale_A{
	meta:
		description = "Backdoor:Win32/Nioupale.A,SIGNATURE_TYPE_PEHSTR_EXT,05 00 05 00 07 00 00 "
		
	strings :
		$a_01_0 = {6d 73 68 6f 73 74 2e 65 78 65 } 		$a_01_1 = {6d 73 69 64 2e 64 61 74 00 } 		$a_01_2 = {cc 38 38 34 e2 f7 f7 } 		$a_01_3 = {f7 c5 c8 c8 3a f6 cf cd ce } 		$a_01_4 = {2f 61 64 64 72 2e 67 69 66 } 		$a_03_5 = {25 55 53 45 52 50 52 4f 46 49 4c 45 25 5c 53 79 73 74 65 6d ?? ?? ?? ?? 5c 4c 69 62 72 61 72 79 ?? ?? ?? ?? 5c 53 79 73 74 65 6d 00 43 6f 6d 6d 6f 6e 46 69 6c 65 73 44 69 72 } 		$a_01_6 = {74 65 78 74 3d 49 44 3d 00 } 	condition:
		((#a_01_0  & 1)*1+(#a_01_1  & 1)*1+(#a_01_2  & 1)*1+(#a_01_3  & 1)*1+(#a_01_4  & 1)*1+(#a_03_5  & 1)*1+(#a_01_6  & 1)*1) >=5
 
}

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

837d8c09-935e-449d-8877-b341f9c2f883

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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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