TrojanDownloader_O97M_Emotet_KAAK_MTB

YARA detection rule by roadwy

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

rule TrojanDownloader_O97M_Emotet_KAAK_MTB{
	meta:
		description = "TrojanDownloader:O97M/Emotet.KAAK!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,01 00 01 00 06 00 00 "
		
	strings :
		$a_01_0 = {3a 2f 2f 62 22 26 22 75 22 26 22 6c 22 26 22 6c 22 26 22 64 22 26 22 6f 22 26 22 67 22 26 22 69 22 26 22 72 22 26 22 6f 22 26 22 6e 22 26 22 77 22 26 22 6f 22 26 22 72 22 26 22 6b 22 26 22 73 22 26 22 6c 22 26 22 6c 22 26 22 63 2e 63 22 26 22 6f 22 26 22 6d 2f 74 22 26 22 65 22 26 22 6d 22 26 22 70 2f 49 22 26 22 56 22 26 22 48 22 26 22 44 22 26 22 30 22 26 22 30 22 26 22 47 22 26 22 47 2f 22 2c 22 } 		$a_01_1 = {3a 2f 2f 68 22 26 22 77 22 26 22 74 22 26 22 77 2e 63 22 26 22 6f 22 26 22 6d 2e 74 22 26 22 77 2f 62 22 26 22 61 22 26 22 63 22 26 22 6b 22 26 22 65 22 26 22 6e 22 26 22 64 2f 61 22 26 22 6c 22 26 22 65 22 26 22 72 22 26 22 74 22 26 22 69 22 26 22 66 22 26 22 79 22 26 22 6a 22 26 22 73 2f 62 22 26 22 34 22 26 22 51 22 26 22 79 22 26 22 66 22 26 22 63 22 26 22 4f 2f 22 2c 22 } 		$a_01_2 = {3a 2f 2f 62 22 26 22 65 22 26 22 6e 22 26 22 63 22 26 22 65 22 26 22 76 22 26 22 65 22 26 22 6e 22 26 22 64 22 26 22 65 22 26 22 67 22 26 22 68 22 26 22 61 22 26 22 7a 2e 68 22 26 22 75 2f 77 22 26 22 70 2d 69 22 26 22 6e 22 26 22 63 6c 22 26 22 75 22 26 22 64 22 26 22 65 22 26 22 73 2f 49 22 26 22 73 22 26 22 44 22 26 22 33 22 26 22 34 22 26 22 69 22 26 22 6c 2f 22 2c 22 } 		$a_01_3 = {3a 2f 2f 6b 22 26 22 61 22 26 22 73 22 26 22 70 22 26 22 65 22 26 22 72 22 26 22 76 22 26 22 61 22 26 22 6e 22 26 22 64 22 26 22 65 22 26 22 6e 22 26 22 62 22 26 22 65 22 26 22 72 22 26 22 67 2e 6e 22 26 22 65 22 26 22 74 2f 32 22 26 22 30 22 26 22 30 22 26 22 39 2f 62 22 26 22 6c 22 26 22 52 22 26 22 33 22 26 22 47 22 26 22 75 2f 22 2c 22 } 		$a_01_4 = {3a 2f 2f 6b 22 26 22 61 22 26 22 6d 22 26 22 65 72 22 26 22 61 22 26 22 6c 22 26 22 61 22 26 22 72 2e 61 22 26 22 7a 2f 6b 22 26 22 6f 22 26 22 68 22 26 22 6e 22 26 22 65 2f 75 22 26 22 70 22 26 22 67 22 26 22 72 22 26 22 61 22 26 22 64 22 26 22 65 2f 71 22 26 22 68 22 26 22 61 22 26 22 64 22 26 22 32 22 26 22 69 22 26 22 52 22 26 22 6c 22 26 22 4d 22 26 22 41 22 26 22 37 22 26 22 62 22 26 22 74 22 26 22 46 2f 22 2c 22 } 		$a_01_5 = {3a 2f 2f 6c 22 26 22 69 22 26 22 76 22 26 22 72 22 26 22 65 22 26 22 73 2e 61 22 26 22 72 22 26 22 74 2e 62 22 26 22 72 2f 65 22 26 22 72 72 22 26 22 6f 22 26 22 73 2f 67 22 26 22 66 22 26 22 79 22 26 22 45 22 26 22 77 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) >=1
 
}

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

23716fd3-615f-4374-be40-413733a97300

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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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