Ransom_MSIL_WormLocker_NKA_MTB

YARA detection rule by roadwy

Ransom:MSIL/WormLocker.NKA!MTB,SIGNATURE_TYPE_PEHSTR_EXT,09 00 09 00 08 00 00

rule Ransom_MSIL_WormLocker_NKA_MTB{
	meta:
		description = "Ransom:MSIL/WormLocker.NKA!MTB,SIGNATURE_TYPE_PEHSTR_EXT,09 00 09 00 08 00 00 "
		
	strings :
		$a_81_0 = {53 79 73 57 4f 57 36 34 2e 53 63 72 69 70 74 2e 72 61 6e 73 6f 6d 5f 76 6f 69 63 65 2e 76 62 73 } 		$a_81_1 = {72 65 67 20 61 64 64 20 48 4b 4c 4d 5c 53 4f 46 54 57 41 52 45 5c 50 6f 6c 69 63 69 65 73 5c 4d 69 63 72 6f 73 6f 66 74 5c 46 56 45 20 2f 76 20 45 6e 61 62 6c 65 42 44 45 57 69 74 68 4e 6f 54 50 4d 20 2f 74 20 52 45 47 5f 44 57 4f 52 44 20 2f 64 20 31 20 2f 66 } 		$a_81_2 = {6d 61 6e 61 67 65 2d 62 64 65 20 2d 6f 6e 20 43 3a 20 2d 70 77 20 2d 72 6b 20 43 3a 5c 6b 65 79 2e 62 69 6e } 		$a_81_3 = {43 3a 5c 57 69 6e 64 6f 77 73 5c 53 79 73 74 65 6d 33 32 5c 57 6f 72 6d 4c 6f 63 6b 65 72 32 2e 30 2e 65 78 65 } 		$a_81_4 = {2f 43 20 72 65 67 20 61 64 64 20 48 4b 43 55 5c 45 6e 76 69 72 6f 6e 6d 65 6e 74 20 2f 76 20 77 69 6e 64 69 72 20 2f 64 20 22 63 6d 64 2e 65 78 65 20 2f 63 20 73 74 61 72 74 20 63 3a 5c 70 61 79 6c 6f 61 64 2e 65 78 65 } 		$a_81_5 = {2e 65 6e 63 72 79 70 74 65 64 } 		$a_81_6 = {2f 43 20 72 65 61 67 65 6e 74 63 20 2f 64 69 73 61 62 6c 65 20 26 26 20 76 73 73 61 64 6d 69 6e 20 64 65 6c 65 74 65 20 73 68 61 64 6f 77 73 20 2f 61 6c 6c 20 2f 71 75 69 65 74 } 		$a_81_7 = {39 64 65 37 65 35 39 62 2d 65 62 34 66 2d 34 38 34 31 2d 38 37 32 36 2d 33 62 31 30 64 64 38 34 63 33 63 38 } 	condition:
		((#a_81_0  & 1)*1+(#a_81_1  & 1)*2+(#a_81_2  & 1)*1+(#a_81_3  & 1)*1+(#a_81_4  & 1)*1+(#a_81_5  & 1)*1+(#a_81_6  & 1)*1+(#a_81_7  & 1)*1) >=9
 
}

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

6b20a527-6eaa-410e-a2af-d112c4b7dacb

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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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