TrojanDownloader_O97M_Emotet_ACPD_MTB

YARA detection rule by roadwy

TrojanDownloader:O97M/Emotet.ACPD!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,01 00 01 00 06 00 00

rule TrojanDownloader_O97M_Emotet_ACPD_MTB{
	meta:
		description = "TrojanDownloader:O97M/Emotet.ACPD!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,01 00 01 00 06 00 00 "
		
	strings :
		$a_01_0 = {3a 2f 2f 6d 22 26 22 69 63 22 26 22 72 22 26 22 6f 22 26 22 6c 65 22 26 22 6e 22 26 22 74 2e 63 22 26 22 6f 22 26 22 6d 2f 61 22 26 22 64 22 26 22 6d 22 26 22 69 22 26 22 6e 2f 47 22 26 22 67 6f 22 26 22 43 2f } 		$a_01_1 = {3a 2f 2f 6d 22 26 22 69 73 22 26 22 73 69 22 26 22 73 73 22 26 22 61 75 22 26 22 67 22 26 22 61 22 26 22 74 61 22 26 22 78 69 2e 63 22 26 22 6f 22 26 22 6d 2f 77 22 26 22 70 2d 61 64 22 26 22 6d 22 26 22 69 22 26 22 6e 2f 4b 22 26 22 56 6f 22 26 22 43 69 22 26 22 51 22 26 22 77 22 26 22 67 6a 22 26 22 72 74 22 26 22 61 22 26 22 76 22 26 22 65 22 26 22 69 22 26 22 34 78 2f } 		$a_01_2 = {3a 2f 22 26 22 2f 6d 22 26 22 69 76 22 26 22 61 72 22 26 22 69 22 26 22 61 2e 63 22 26 22 6f 22 26 22 6d 2f 6f 22 26 22 77 22 26 22 6c 2d 63 22 26 22 61 22 26 22 72 22 26 22 6f 22 26 22 75 73 22 26 22 65 6c 2f 45 22 26 22 36 70 22 26 22 4b 22 26 22 46 22 26 22 50 6c 22 26 22 47 75 22 26 22 55 57 22 26 22 33 2f } 		$a_01_3 = {3a 2f 2f 77 22 26 22 77 22 26 22 77 2e 6d 22 26 22 6f 62 22 26 22 69 6c 22 26 22 68 22 26 22 6f 22 26 22 6e 22 26 22 64 22 26 22 61 62 22 26 22 61 22 26 22 6e 22 26 22 64 75 22 26 22 6e 67 2e 6e 22 26 22 65 22 26 22 74 2f 73 22 26 22 73 74 22 26 22 69 2f 79 22 26 22 59 72 22 26 22 76 6d 22 26 22 4a 67 22 26 22 6a 70 22 26 22 46 48 22 26 22 48 65 2f } 		$a_01_4 = {3a 2f 22 26 22 2f 65 22 26 22 6c 61 22 26 22 6d 22 26 22 75 22 26 22 72 72 22 26 22 61 22 26 22 79 2e 63 22 26 22 6f 22 26 22 6d 2f 63 22 26 22 67 22 26 22 69 2d 62 22 26 22 69 22 26 22 6e 2f 73 22 26 22 50 67 22 26 22 47 38 22 26 22 67 2f } 		$a_01_5 = {3a 2f 2f 6d 22 26 22 67 22 26 22 6d 22 26 22 65 22 26 22 75 22 26 22 72 22 26 22 6f 22 26 22 70 22 26 22 65 2e 73 22 26 22 6b 2f 64 22 26 22 77 22 26 22 6c 2f 72 22 26 22 72 22 26 22 71 22 26 22 55 22 26 22 39 22 26 22 58 22 26 22 59 22 26 22 41 7a 22 26 22 67 22 26 22 41 22 26 22 56 22 26 22 6e 22 26 22 65 59 22 26 22 4f 22 26 22 68 22 26 22 49 2f } 	condition:
		((#a_01_0  & 1)*1+(#a_01_1  & 1)*1+(#a_01_2  & 1)*1+(#a_01_3  & 1)*1+(#a_01_4  & 1)*1+(#a_01_5  & 1)*1) >=1
 
}

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

15d3c93c-a9e5-4b28-89d3-24032b3b4846

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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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