Worm_Win32_Nohad_ON_MTB

YARA detection rule by roadwy

Worm:Win32/Nohad.ON!MTB,SIGNATURE_TYPE_PEHSTR,04 00 04 00 04 00 00

rule Worm_Win32_Nohad_ON_MTB{
	meta:
		description = "Worm:Win32/Nohad.ON!MTB,SIGNATURE_TYPE_PEHSTR,04 00 04 00 04 00 00 "
		
	strings :
		$a_01_0 = {5c 6e 6f 64 34 32 2e 65 78 65 } 		$a_01_1 = {5c 6e 6f 74 74 65 70 61 64 2e 65 78 65 } 		$a_01_2 = {6f 70 65 6e 3d 74 65 6d 70 5c 73 79 73 74 65 6d 2e 65 78 65 } 		$a_01_3 = {5c 4d 69 63 72 6f 73 6f 66 74 5c 57 69 6e 64 6f 77 73 5c 53 74 61 72 74 20 4d 65 6e 75 5c 50 72 6f 67 72 61 6d 73 5c 53 74 61 72 74 75 70 } 	condition:
		((#a_01_0  & 1)*1+(#a_01_1  & 1)*1+(#a_01_2  & 1)*1+(#a_01_3  & 1)*1) >=4
 
}

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

91cbfd20-0a00-40ee-beaf-a98ae80f81e5

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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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