TrojanDownloader_O97M_Dridex_SS_MTB_6

YARA detection rule by roadwy

TrojanDownloader:O97M/Dridex.SS!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,05 00 05 00 05 00 00

rule TrojanDownloader_O97M_Dridex_SS_MTB_6{
	meta:
		description = "TrojanDownloader:O97M/Dridex.SS!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,05 00 05 00 05 00 00 "
		
	strings :
		$a_01_0 = {3d 20 52 65 70 6c 61 63 65 28 22 5c 31 51 4d 3a 29 33 38 5a 51 4d 3a 29 33 38 5a 31 39 38 31 2e 51 4d 3a 29 33 38 5a 64 6c 6c 22 2c 20 22 51 4d 3a 29 33 38 5a 22 2c 20 22 22 29 } 		$a_01_1 = {3d 20 52 65 70 6c 61 63 65 28 22 7a 38 67 2a 42 37 37 41 7a 38 67 2a 42 37 37 70 7a 38 67 2a 42 37 37 70 44 61 74 61 22 2c 20 22 7a 38 67 2a 42 37 37 22 2c 20 22 22 29 } 		$a_01_2 = {3d 20 52 65 70 6c 61 63 65 28 22 4f 66 20 24 65 4d 25 66 6c 69 6e 20 24 65 4d 25 65 46 20 24 65 4d 25 69 6c 20 24 65 4d 25 20 24 65 4d 25 65 20 24 65 4d 25 73 53 74 61 72 74 22 2c 20 22 20 24 65 4d 25 22 2c 20 22 22 29 } 		$a_01_3 = {4d 73 67 20 3d 20 22 54 68 61 6e 6b 20 59 6f 75 21 } 		$a_01_4 = {4d 73 67 42 6f 78 20 4d 73 67 2c 20 2c 20 22 4f 4b 22 2c 20 45 72 72 2e 48 65 6c 70 46 69 6c 65 2c 20 45 72 72 2e 48 65 6c 70 43 6f 6e 74 65 78 74 } 	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) >=5
 
}

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

a67f8639-795a-472c-8e2a-a2fb0d0ff527

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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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