TrojanDownloader_O97M_Emotet_KAAS_MTB

YARA detection rule by roadwy

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

rule TrojanDownloader_O97M_Emotet_KAAS_MTB{
	meta:
		description = "TrojanDownloader:O97M/Emotet.KAAS!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,01 00 01 00 04 00 00 "
		
	strings :
		$a_01_0 = {3a 2f 2f 77 77 77 2e 7a 61 72 64 61 6d 61 72 69 6e 65 2e 63 6f 6d 2f 69 6d 61 67 65 73 2f 70 73 51 62 41 6a 72 72 45 4f 58 57 50 72 53 2f } 		$a_01_1 = {3a 2f 2f 6c 61 62 66 69 74 6f 75 74 73 2e 63 6f 6d 2f 63 67 69 2d 62 69 6e 2f 52 65 61 33 49 75 33 77 47 76 67 41 62 54 73 65 74 30 2f } 		$a_01_2 = {3a 2f 2f 6b 22 26 22 72 6f 22 26 22 6e 22 26 22 6f 73 22 26 22 74 72 2e 63 22 26 22 6f 22 26 22 6d 2f 74 72 2f 36 22 26 22 38 79 22 26 22 48 52 22 26 22 68 66 22 26 22 75 22 26 22 55 37 22 26 22 51 6a 2f } 		$a_01_3 = {3a 2f 2f 74 65 6b 22 26 22 73 74 69 6c 75 22 26 22 7a 6d 61 22 26 22 6e 67 22 26 22 6f 72 22 26 22 75 73 22 26 22 75 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 47 22 26 22 4b 64 22 26 22 51 76 22 26 22 61 6d 22 26 22 6e 50 22 26 22 63 4b 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 ]]

5f2dfce6-c522-47dd-a73f-4cf3c86da63f

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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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