TrojanDownloader_O97M_Emotet_SAX_MTB

YARA detection rule by roadwy

TrojanDownloader:O97M/Emotet.SAX!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,06 00 06 00 06 00 00

rule TrojanDownloader_O97M_Emotet_SAX_MTB{
	meta:
		description = "TrojanDownloader:O97M/Emotet.SAX!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,06 00 06 00 06 00 00 "
		
	strings :
		$a_03_0 = {4e 65 78 74 [0-25] 3a [0-25] 20 3d 20 22 [0-25] 22 [0-25] 20 3d 20 22 [0-20] 72 6f [0-20] 63 65 [0-20] 73 [0-20] 73 [0-20] 22 } 		$a_03_1 = {4e 65 78 74 [0-25] 3a [0-25] 20 3d 20 22 [0-20] 3a 77 [0-20] 69 6e [0-20] 33 [0-20] 32 [0-20] 5f [0-20] 22 } 		$a_03_2 = {4e 65 78 74 [0-25] 3a [0-25] 20 3d 20 22 77 [0-20] 69 6e [0-20] 6d [0-20] 67 6d [0-20] 74 [0-20] 22 } 		$a_03_3 = {20 3d 20 52 65 70 6c 61 63 65 28 [0-25] 2c 20 22 [0-25] 22 2c 20 [0-25] 29 } 		$a_03_4 = {2e 43 72 65 61 74 65 20 [0-20] 2c 20 [0-20] 2c } 		$a_03_5 = {45 6e 64 20 46 75 6e 63 74 69 6f 6e 90 0c 02 00 46 75 6e 63 74 69 6f 6e 20 [0-20] 28 [0-20] 29 90 0c 02 00 4f 6e 20 45 72 72 6f 72 20 52 65 73 75 6d 65 20 4e 65 78 74 } 	condition:
		((#a_03_0  & 1)*1+(#a_03_1  & 1)*1+(#a_03_2  & 1)*1+(#a_03_3  & 1)*1+(#a_03_4  & 1)*1+(#a_03_5  & 1)*1) >=6
 
}

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

dbf44d11-94ee-4cdf-ae4d-b96a18d3cb8a

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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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