TrojanDownloader_O97M_Emotet_AXPD_MTB

YARA detection rule by roadwy

TrojanDownloader:O97M/Emotet.AXPD!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,01 00 01 00 08 00 00

rule TrojanDownloader_O97M_Emotet_AXPD_MTB{
	meta:
		description = "TrojanDownloader:O97M/Emotet.AXPD!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,01 00 01 00 08 00 00 "
		
	strings :
		$a_01_0 = {3a 2f 2f 77 22 26 22 77 22 26 22 77 2e 61 22 26 22 73 22 26 22 65 22 26 22 67 75 22 26 22 72 22 26 22 61 22 26 22 64 22 26 22 6f 22 26 22 73 22 26 22 61 22 26 22 6c 22 26 22 64 22 26 22 69 61 2e 63 22 26 22 6f 22 26 22 6d 2f 77 22 26 22 70 2d 63 22 26 22 6f 6e 22 26 22 74 65 22 26 22 6e 74 2f 6b 22 26 22 65 6c 22 26 22 51 75 22 26 22 6f 74 22 26 22 39 6b 22 26 22 6f 66 22 26 22 55 54 22 26 22 4c 39 22 26 22 30 75 22 26 22 75 45 2f } 		$a_01_1 = {3a 2f 2f 66 22 26 22 74 22 26 22 70 2e 6d 22 26 22 65 63 22 26 22 6f 22 26 22 6e 22 26 22 73 22 26 22 65 22 26 22 72 2e 63 22 26 22 6f 22 26 22 6d 2f 62 22 26 22 61 22 26 22 6e 22 26 22 6e 22 26 22 65 22 26 22 72 2f 72 22 26 22 72 22 26 22 4d 22 26 22 6f 22 26 22 63 22 26 22 53 22 26 22 63 72 22 26 22 71 37 2f } 		$a_01_2 = {3a 2f 2f 68 22 26 22 61 22 26 22 74 22 26 22 68 22 26 22 61 22 26 22 61 22 26 22 62 22 26 22 65 22 26 22 61 22 26 22 63 22 26 22 68 2e 63 22 26 22 6f 22 26 22 6d 2f 64 22 26 22 6f 63 22 26 22 75 6d 22 26 22 65 6e 22 26 22 74 73 2f 6b 22 26 22 38 38 22 26 22 72 22 26 22 6e 2f } 		$a_01_3 = {3a 2f 2f 77 22 26 22 6f 22 26 22 72 22 26 22 64 22 26 22 70 72 22 26 22 65 73 22 26 22 73 2e 61 22 26 22 67 72 22 26 22 75 70 22 26 22 65 22 26 22 6d 2e 63 22 26 22 6f 22 26 22 6d 2f 77 22 26 22 70 2d 61 22 26 22 64 6d 22 26 22 69 6e 2f 6a 22 26 22 69 6d 22 26 22 6a 7a 22 26 22 75 2f } 		$a_01_4 = {3a 2f 2f 77 22 26 22 77 22 26 22 77 2e 7a 76 22 26 22 64 65 73 69 22 26 22 67 6e 2e 69 22 26 22 6e 22 26 22 66 22 26 22 6f 2f 63 6f 22 26 22 6d 70 22 26 22 6f 6e 65 22 26 22 6e 74 73 2f 46 22 26 22 44 7a 2f } 		$a_01_5 = {3a 2f 2f 77 22 26 22 6f 6c 66 66 22 26 22 72 61 22 26 22 6d 2e 64 22 26 22 6b 2f 5f 62 22 26 22 6f 72 22 26 22 64 65 22 26 22 72 73 2f 45 22 26 22 31 6d 22 26 22 78 45 22 26 22 58 59 22 26 22 72 4d 48 22 26 22 46 2f } 		$a_01_6 = {3a 2f 2f 6d 22 26 22 61 63 22 26 22 73 73 22 26 22 6f 6c 22 26 22 75 74 22 26 22 69 6f 22 26 22 6e 73 2e 63 22 26 22 6f 2e 75 22 26 22 6b 2f 63 22 26 22 67 22 26 22 69 2d 62 69 22 26 22 6e 2f 6d 22 26 22 33 53 22 26 22 52 4d 22 26 22 49 4d 22 26 22 73 78 22 26 22 32 41 22 26 22 5a 71 22 26 22 76 67 4a 2f } 		$a_01_7 = {3a 2f 2f 66 22 26 22 74 22 26 22 70 2e 79 22 26 22 75 65 22 26 22 63 6d 22 26 22 72 2e 6f 22 26 22 72 22 26 22 67 2f 77 22 26 22 70 2d 63 22 26 22 6f 6e 22 26 22 74 65 22 26 22 6e 74 2f 46 22 26 22 61 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+(#a_01_6  & 1)*1+(#a_01_7  & 1)*1) >=1
 
}

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

cfac3685-e0bd-4fa6-aa7e-e5b9ff8e1a99

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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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