TrojanDownloader_O97M_Emotet_KAAL_MTB

YARA detection rule by roadwy

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

rule TrojanDownloader_O97M_Emotet_KAAL_MTB{
	meta:
		description = "TrojanDownloader:O97M/Emotet.KAAL!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,01 00 01 00 04 00 00 "
		
	strings :
		$a_01_0 = {3a 2f 2f 6e 22 26 22 65 22 26 22 77 6b 22 26 22 61 6e 22 26 22 6f 2e 63 22 26 22 6f 22 26 22 6d 2f 77 22 26 22 70 2d 61 64 22 26 22 6d 69 22 26 22 6e 2f 36 22 26 22 36 72 22 26 22 49 73 72 22 26 22 56 77 22 26 22 6f 50 22 26 22 4b 55 22 26 22 73 6a 22 26 22 63 41 22 26 22 73 2f 22 2c 22 59 } 		$a_01_1 = {3a 2f 2f 6f 22 26 22 63 61 22 26 22 6c 6f 67 22 26 22 75 6c 22 26 22 6c 61 72 22 26 22 69 2e 63 22 26 22 6f 22 26 22 6d 2f 69 22 26 22 6e 22 26 22 63 2f 57 22 26 22 63 6d 22 26 22 38 32 22 26 22 65 22 26 22 6e 72 22 26 22 73 38 2f 22 2c 22 5e } 		$a_01_2 = {3a 2f 2f 6d 22 26 22 79 70 22 26 22 68 61 22 26 22 6d 63 22 26 22 75 61 22 26 22 74 75 22 26 22 69 2e 63 22 26 22 6f 22 26 22 6d 2f 61 22 26 22 73 73 22 26 22 65 74 22 26 22 73 2f 4f 22 26 22 50 56 22 26 22 65 56 22 26 22 53 70 22 26 22 4f 2f 22 2c 22 } 		$a_01_3 = {3a 2f 2f 73 22 26 22 69 65 22 26 22 75 74 22 26 22 68 69 22 26 22 70 68 22 26 22 75 74 22 26 22 75 6e 22 26 22 67 78 22 26 22 65 6e 22 26 22 61 6e 22 26 22 67 2e 63 22 26 22 6f 22 26 22 6d 2f 6f 22 26 22 6c 22 26 22 64 5f 73 22 26 22 6f 75 22 26 22 72 63 22 26 22 65 2f 39 22 26 22 62 6f 22 26 22 4a 51 22 26 22 5a 70 22 26 22 54 53 22 26 22 64 51 22 26 22 45 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) >=1
 
}

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

d0856f9c-43a2-4d56-8622-49935890eeb3

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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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