TrojanDownloader_O97M_Emotet_RVL_MTB_2

YARA detection rule by roadwy

TrojanDownloader:O97M/Emotet.RVL!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,01 00 01 00 0c 00 00

rule TrojanDownloader_O97M_Emotet_RVL_MTB_2{
	meta:
		description = "TrojanDownloader:O97M/Emotet.RVL!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,01 00 01 00 0c 00 00 "
		
	strings :
		$a_01_0 = {2f 2f 77 77 77 2e 6e 65 78 78 64 65 63 6f 72 2e 76 6e 2f 61 70 6b 2f 7a 79 38 47 6b 5a 2f 22 2c 22 } 		$a_01_1 = {2f 2f 70 61 6e 73 63 6f 6c 6c 65 63 74 69 6f 6e 73 2e 69 6e 2e 74 68 2f 61 73 73 65 74 73 2f 61 7a 48 4f 42 44 6f 75 78 2f 22 2c 22 } 		$a_01_2 = {2f 2f 6e 22 26 22 61 74 22 26 22 69 6f 22 26 22 6e 63 22 26 22 6f 2d 6f 22 26 22 70 2e 6f 22 26 22 72 22 26 22 67 2f 63 22 26 22 73 22 26 22 73 2f 38 22 26 22 77 76 22 26 22 37 6c 22 26 22 42 35 2f 22 2c 22 } 		$a_01_3 = {2f 2f 6c 22 26 22 69 67 22 26 22 68 74 22 26 22 6d 79 22 26 22 66 69 22 26 22 72 65 2e 69 22 26 22 6e 2f 64 22 26 22 65 22 26 22 6d 22 26 22 6f 2f 52 49 22 26 22 6b 41 22 26 22 46 67 54 46 56 75 61 49 30 35 72 32 2f 22 2c 22 } 		$a_01_4 = {2f 2f 70 61 70 69 6c 6c 6f 6e 77 65 62 2e 66 72 2f 77 70 2d 63 6f 6e 74 65 6e 74 2f 47 38 7a 30 38 71 30 6d 6a 2f 22 2c 22 } 		$a_01_5 = {2f 2f 62 72 65 6e 6e 61 6e 61 73 69 61 2e 63 6f 6d 2f 69 6d 61 67 65 73 2f 36 49 77 50 42 48 62 6e 55 76 66 67 75 67 56 31 62 2f 22 2c 22 } 		$a_01_6 = {2f 2f 65 73 74 61 63 69 6f 65 73 70 6f 72 74 69 76 61 76 69 6c 61 6e 6f 76 61 69 6c 61 67 65 6c 74 72 75 2e 63 61 74 2f 74 6d 70 2f 49 67 53 79 71 77 67 4a 6d 45 2f 22 2c 22 } 		$a_01_7 = {2f 2f 77 77 77 2e 73 75 70 65 72 73 61 6e 6d 75 74 66 61 6b 2e 63 6f 6d 2f 54 65 6d 70 6c 61 74 65 2f 4b 61 59 79 49 42 50 78 4d 75 6b 6a 6f 53 70 41 62 6a 2f 22 2c 22 } 		$a_01_8 = {2f 2f 76 69 70 65 73 63 6f 72 74 73 70 68 75 6b 65 74 2e 63 6f 6d 2f 61 73 73 65 74 73 2f 33 54 52 76 46 2f 22 2c 22 } 		$a_01_9 = {2f 2f 76 74 6b 6c 69 6e 6b 65 72 77 65 72 6b 65 6e 2e 62 65 2f 6c 61 6e 67 75 61 67 65 2f 6c 6f 6a 4c 64 45 53 6e 63 56 2f 22 2c 22 } 		$a_01_10 = {2f 2f 77 68 61 74 65 6c 6c 65 73 2e 6e 6c 2f 63 73 73 2f 4b 74 34 43 52 34 70 31 55 47 5a 47 51 6e 47 59 2f 22 2c 22 } 		$a_01_11 = {2f 2f 77 77 77 2e 74 65 61 6d 73 61 76 65 2e 69 74 2f 41 48 30 4d 56 43 5a 35 2f 77 30 52 56 36 4c 73 5a 43 2f 22 2c 22 } 	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) >=1
 
}

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

02a4fd53-dcc2-4d38-9d8b-fc5a086e4205

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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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