TrojanDownloader_O97M_Emotet_VM_MTB

YARA detection rule by roadwy

TrojanDownloader:O97M/Emotet.VM!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,05 00 05 00 05 00 00

rule TrojanDownloader_O97M_Emotet_VM_MTB{
	meta:
		description = "TrojanDownloader:O97M/Emotet.VM!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,05 00 05 00 05 00 00 "
		
	strings :
		$a_03_0 = {43 61 6c 6c 20 [0-20] 2e 20 5f 90 0c 02 00 43 72 65 61 74 65 28 [0-20] 2c 20 90 05 0f 06 41 2d 5a 61 2d 7a 2c } 		$a_03_1 = {3d 20 4a 6f 69 6e 28 53 70 6c 69 74 28 [0-40] 2c 20 [0-30] 29 } 		$a_01_2 = {2e 43 6f 6e 74 72 6f 6c 54 69 70 54 65 78 74 20 2b 20 22 2d 65 20 22 } 		$a_01_3 = {53 74 72 52 65 76 65 72 73 65 28 64 73 65 29 } 		$a_01_4 = {2e 50 61 67 65 73 28 30 29 2e 43 61 70 74 69 6f 6e } 	condition:
		((#a_03_0  & 1)*1+(#a_03_1  & 1)*1+(#a_01_2  & 1)*1+(#a_01_3  & 1)*1+(#a_01_4  & 1)*1) >=5
 
}

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

bb17cc70-150e-43d4-9942-2c34cc6ecb17

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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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