TrojanDownloader_O97M_Emotet_EUPK_MTB

YARA detection rule by roadwy

TrojanDownloader:O97M/Emotet.EUPK!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,01 00 01 00 04 00 00

rule TrojanDownloader_O97M_Emotet_EUPK_MTB{
	meta:
		description = "TrojanDownloader:O97M/Emotet.EUPK!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,01 00 01 00 04 00 00 "
		
	strings :
		$a_01_0 = {77 77 77 2e 6d 65 67 61 6b 6f 6e 66 65 72 61 6e 73 2e 63 6f 6d 2f 77 70 2d 61 64 6d 69 6e 2f 58 7a 7a 30 38 69 35 31 34 4e 42 72 67 2f } 		$a_01_1 = {6d 79 71 73 65 72 76 69 63 65 2e 63 6f 6d 2e 61 72 2f 77 70 2d 69 6e 63 6c 75 64 65 73 2f 55 61 6d 51 6b 79 39 48 39 72 53 79 4e 37 43 57 64 75 65 2f } 		$a_01_2 = {6e 6f 72 6f 6e 68 61 6c 61 6e 63 68 65 73 2e 63 6f 6d 2e 62 72 2f 63 67 69 2d 62 69 6e 2f 78 69 78 73 73 75 4d 4c 39 4e 4f 4a 4f 39 2f } 		$a_01_3 = {6e 65 72 7a 2e 6e 65 74 2f 73 74 61 74 73 2f 54 58 47 52 70 4b 62 2f } 	condition:
		((#a_01_0  & 1)*1+(#a_01_1  & 1)*1+(#a_01_2  & 1)*1+(#a_01_3  & 1)*1) >=1
 
}

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

fcf4b123-9fdf-4f18-beff-ca4cd009f7dc

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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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