TrojanDownloader_O97M_Emotet_ESPK_MTB

YARA detection rule by roadwy

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

rule TrojanDownloader_O97M_Emotet_ESPK_MTB{
	meta:
		description = "TrojanDownloader:O97M/Emotet.ESPK!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,01 00 01 00 04 00 00 "
		
	strings :
		$a_01_0 = {6d 69 63 72 6f 6c 65 6e 74 2e 63 6f 6d 2f 61 64 6d 69 6e 2f 33 2f } 		$a_01_1 = {6d 63 61 70 75 62 6c 69 63 73 63 68 6f 6f 6c 2e 63 6f 6d 2f 41 63 68 69 65 76 65 6d 65 6e 74 73 2f 72 34 70 73 76 2f } 		$a_01_2 = {6b 75 6c 75 63 6b 61 63 69 2e 63 6f 6d 2f 79 61 72 69 73 6d 61 2f 63 67 69 2d 62 69 6e 2f 61 49 75 49 34 55 6b 64 74 6c 37 33 30 73 50 31 46 2f } 		$a_01_3 = {6d 6f 6f 72 77 6f 72 6c 64 2e 63 6f 6d 2f 61 73 70 6e 65 74 5f 63 6c 69 65 6e 74 2f 66 54 44 4a 4f 64 54 61 31 55 53 4b 6c 34 33 77 46 74 6e 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 ]]

957ef167-fa9b-43ed-8221-e996555afbad

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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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