Ransom_MSIL_CryptoLocker_DI_MTB_2

YARA detection rule by roadwy

Ransom:MSIL/CryptoLocker.DI!MTB,SIGNATURE_TYPE_PEHSTR_EXT,2e 00 2e 00 0c 00 00

rule Ransom_MSIL_CryptoLocker_DI_MTB_2{
	meta:
		description = "Ransom:MSIL/CryptoLocker.DI!MTB,SIGNATURE_TYPE_PEHSTR_EXT,2e 00 2e 00 0c 00 00 "
		
	strings :
		$a_81_0 = {2e 41 6e 6e 61 62 65 6c 6c 65 } 		$a_81_1 = {2e 62 61 67 6c 69 } 		$a_81_2 = {2e 4c 4f 43 4b 45 44 5f 42 59 5f 57 41 41 4e 4e 41 43 52 59 } 		$a_81_3 = {54 32 35 35 65 45 78 76 59 32 74 6c 63 69 } 		$a_81_4 = {45 6e 63 72 79 70 74 69 6f 6e 20 46 69 6c 65 73 } 		$a_81_5 = {42 69 74 63 6f 69 6e 20 61 64 64 72 65 73 73 3a } 		$a_81_6 = {45 78 74 65 6e 73 69 6f 6e 73 54 6f 45 6e 63 72 79 70 74 } 		$a_81_7 = {4f 6e 79 78 4c 6f 63 6b 65 72 } 		$a_81_8 = {48 41 43 4b 45 44 } 		$a_81_9 = {45 78 63 65 6c 6c 54 6f 50 64 66 } 		$a_81_10 = {62 74 63 2e 62 6c 6f 63 6b 72 2e 69 6f } 		$a_81_11 = {5f 45 6e 63 72 79 70 74 65 64 24 } 	condition:
		((#a_81_0  & 1)*40+(#a_81_1  & 1)*40+(#a_81_2  & 1)*40+(#a_81_3  & 1)*40+(#a_81_4  & 1)*5+(#a_81_5  & 1)*5+(#a_81_6  & 1)*5+(#a_81_7  & 1)*5+(#a_81_8  & 1)*1+(#a_81_9  & 1)*1+(#a_81_10  & 1)*1+(#a_81_11  & 1)*1) >=46
 
}

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

75efdb28-e58a-4dbe-b457-308a2d0c7b96

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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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