TrojanDownloader_O97M_Emotet_BOAH_MTB

YARA detection rule by roadwy

TrojanDownloader:O97M/Emotet.BOAH!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,01 00 01 00 0d 00 00

rule TrojanDownloader_O97M_Emotet_BOAH_MTB{
	meta:
		description = "TrojanDownloader:O97M/Emotet.BOAH!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,01 00 01 00 0d 00 00 "
		
	strings :
		$a_01_0 = {3a 2f 22 26 22 2f 7a 22 26 22 6f 22 26 22 6f 22 26 22 6d 22 26 22 70 22 26 22 69 78 22 26 22 65 6c 2e 63 22 26 22 6f 22 26 22 6d 2e 62 22 26 22 72 2f 77 22 26 22 70 2d 61 22 26 22 64 22 26 22 6d 22 26 22 69 22 26 22 6e 2f 7a 22 26 22 41 22 26 22 52 22 26 22 49 22 26 22 43 22 26 22 50 22 26 22 5a 22 26 22 77 22 26 22 37 22 26 22 66 22 26 22 46 2f } 		$a_01_1 = {3a 2f 2f 62 22 26 22 70 22 26 22 73 22 26 22 6a 22 26 22 61 22 26 22 6d 22 26 22 62 22 26 22 69 2e 69 22 26 22 64 22 26 22 2f 22 26 22 61 22 26 22 62 22 26 22 6f 22 26 22 75 22 26 22 74 22 26 22 2f 22 26 22 52 22 26 22 54 22 26 22 5a 22 26 22 30 22 26 22 41 22 26 22 51 22 26 22 31 22 26 22 2f } 		$a_01_2 = {3a 2f 22 26 22 2f 68 22 26 22 6f 73 22 26 22 74 22 26 22 69 22 26 22 6e 22 26 22 67 22 26 22 31 30 22 26 22 37 30 22 26 22 36 22 26 22 38 2e 61 22 26 22 32 22 26 22 66 22 26 22 32 22 26 22 61 2e 6e 22 26 22 65 22 26 22 74 22 26 22 63 22 26 22 75 22 26 22 70 2e 6e 22 26 22 65 22 26 22 74 2f 63 22 26 22 61 22 26 22 72 22 26 22 65 22 26 22 65 22 26 22 72 2f 30 22 26 22 6d 22 26 22 74 22 26 22 4e 22 26 22 4e 22 26 22 66 22 26 22 62 22 26 22 5a 2f } 		$a_01_3 = {3a 2f 2f 61 22 26 22 67 22 26 22 69 22 26 22 74 22 26 22 61 22 26 22 73 69 2e 69 22 26 22 64 2f 6d 2f 71 22 26 22 4c 22 26 22 43 22 26 22 5a 22 26 22 57 22 26 22 74 2f } 		$a_01_4 = {3a 2f 2f 64 22 26 22 6a 68 22 26 22 6f 22 26 22 73 22 26 22 74 2e 6e 22 26 22 6c 2f 38 22 26 22 48 22 26 22 4f 22 26 22 69 22 26 22 63 22 26 22 6f 22 26 22 42 22 26 22 75 22 26 22 66 22 26 22 51 22 26 22 4e 22 26 22 62 22 26 22 6a 22 26 22 62 22 26 22 4d 2f } 		$a_01_5 = {3a 2f 2f 63 22 26 22 6f 22 26 22 6d 22 26 22 70 22 26 22 75 22 26 22 74 22 26 22 65 22 26 22 72 22 26 22 63 22 26 22 6f 22 26 22 6c 22 26 22 6c 22 26 22 65 22 26 22 67 22 26 22 69 22 26 22 61 22 26 22 74 22 26 22 65 2e 63 22 26 22 6f 22 26 22 6d 2e 70 22 26 22 6b 2f 77 22 26 22 70 2d 61 22 26 22 64 22 26 22 6d 22 26 22 69 6e 2f 71 22 26 22 36 22 26 22 39 22 26 22 44 22 26 22 5a 22 26 22 58 22 26 22 34 22 26 22 6b 22 26 22 4b 22 26 22 5a 22 26 22 36 22 26 22 73 22 26 22 73 22 26 22 52 22 26 22 51 2f } 		$a_01_6 = {3a 2f 2f 77 22 26 22 77 22 26 22 77 2e 61 22 26 22 64 76 22 26 22 61 6e 22 26 22 63 65 22 26 22 6e 65 22 26 22 74 2e 69 22 26 22 74 2f 63 22 26 22 66 22 26 22 67 2f 39 22 26 22 38 58 22 26 22 50 6a 2f } 		$a_01_7 = {3a 2f 2f 61 22 26 22 6e 22 26 22 61 22 26 22 6d 22 26 22 61 22 26 22 66 22 26 22 65 22 26 22 67 22 26 22 61 22 26 22 72 22 26 22 63 22 26 22 69 22 26 22 61 2e 65 22 26 22 73 2f 63 22 26 22 73 22 26 22 73 2f 56 22 26 22 47 22 26 22 42 22 26 22 4a 22 26 22 68 22 26 22 6a 22 26 22 70 22 26 22 75 22 26 22 31 22 26 22 39 22 26 22 65 22 26 22 43 22 26 22 62 22 26 22 71 22 26 22 38 22 26 22 67 22 26 22 62 22 26 22 59 22 26 22 6e 22 26 22 41 2f } 		$a_01_8 = {3a 2f 2f 77 22 26 22 77 22 26 22 77 2e 61 22 26 22 6c 75 22 26 22 67 22 26 22 75 22 26 22 65 22 26 22 6c 22 26 22 64 22 26 22 65 22 26 22 62 72 22 26 22 69 22 26 22 6e 22 26 22 71 22 26 22 75 22 26 22 65 22 26 22 64 22 26 22 6f 22 26 22 73 2e 62 22 26 22 61 22 26 22 72 22 26 22 75 22 26 22 65 22 26 22 72 22 26 22 2e 62 22 26 22 72 2f 77 22 26 22 70 2d 63 22 26 22 6f 6e 22 26 22 74 65 22 26 22 6e 74 2f 45 22 26 22 57 22 26 22 32 22 26 22 33 22 26 22 72 22 26 22 43 22 26 22 33 22 26 22 69 22 26 22 69 22 26 22 31 22 26 22 58 22 26 22 58 2f } 		$a_01_9 = {3a 22 26 22 2f 22 26 22 2f 63 22 26 22 65 64 22 26 22 65 63 22 26 22 6f 2e 65 22 26 22 73 2f 6a 22 26 22 73 2f 6e 22 26 22 37 22 26 22 34 66 22 26 22 53 2f } 		$a_01_10 = {3a 22 26 22 2f 22 26 22 2f 62 22 26 22 61 6c 22 26 22 74 69 22 26 22 63 63 22 26 22 6f 6e 22 26 22 74 72 22 26 22 6f 6c 22 26 22 62 64 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 47 22 26 22 75 30 22 26 22 78 6e 22 26 22 6f 30 22 26 22 6b 49 73 22 26 22 73 47 22 26 22 4a 46 22 26 22 38 2f } 		$a_01_11 = {3a 2f 2f 66 22 26 22 69 6b 22 26 22 74 69 2e 62 22 26 22 65 22 26 22 6d 2e 67 22 26 22 75 6e 22 26 22 61 64 22 26 22 61 72 22 26 22 6d 61 2e 61 22 26 22 63 2e 69 22 26 22 64 2f 53 22 26 22 44 22 26 22 4d 2f 71 22 26 22 4e 65 22 26 22 4d 55 22 26 22 65 32 22 26 22 52 76 22 26 22 78 64 22 26 22 76 75 22 26 22 52 6c 22 26 22 66 2f } 		$a_01_12 = {3a 2f 2f 77 22 26 22 77 22 26 22 77 2e 63 61 22 26 22 72 65 22 26 22 6f 66 22 26 22 75 2e 63 22 26 22 6f 22 26 22 6d 2f 50 22 26 22 48 50 22 26 22 45 22 26 22 78 63 22 26 22 65 6c 2f 73 22 26 22 51 37 22 26 22 38 42 22 26 22 65 64 22 26 22 72 69 22 26 22 62 4e 22 26 22 4a 5a 22 26 22 62 47 22 26 22 59 6a 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+(#a_01_8  & 1)*1+(#a_01_9  & 1)*1+(#a_01_10  & 1)*1+(#a_01_11  & 1)*1+(#a_01_12  & 1)*1) >=1
 
}

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

2f656f5e-9974-4322-ac94-2e9b7ce6678d

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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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