TrojanDownloader_O97M_Emotet_BB_MTB

YARA detection rule by roadwy

TrojanDownloader:O97M/Emotet.BB!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,03 00 03 00 03 00 00

rule TrojanDownloader_O97M_Emotet_BB_MTB{
	meta:
		description = "TrojanDownloader:O97M/Emotet.BB!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,03 00 03 00 03 00 00 "
		
	strings :
		$a_01_0 = {3d 20 52 65 70 6c 61 63 65 28 74 79 73 64 6a 6f 69 67 68 64 6c 66 6b 67 6e 78 6c 63 64 73 66 2e 54 65 78 74 42 6f 78 31 2e 54 65 78 74 2c 20 22 77 67 6a 61 22 2c 20 22 22 29 } 		$a_01_1 = {54 65 78 74 20 3d 20 22 63 77 67 6a 61 6d 64 20 2f 77 67 6a 61 63 20 73 77 67 6a 61 74 61 72 77 67 6a 61 74 2f 77 67 6a 61 42 } 		$a_01_2 = {2e 54 61 67 20 3d 20 43 65 6c 6c 73 28 37 35 2c 20 31 29 20 2b 20 76 62 43 72 4c 66 20 2b 20 43 65 6c 6c 73 28 37 37 2c 20 31 29 } 	condition:
		((#a_01_0  & 1)*1+(#a_01_1  & 1)*1+(#a_01_2  & 1)*1) >=3
 
}

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

486f084d-c0c9-459b-a935-bb668f13fe7f

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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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