TrojanDownloader_O97M_Dridex_YD_MTB

YARA detection rule by roadwy

TrojanDownloader:O97M/Dridex.YD!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,03 00 03 00 03 00 00

rule TrojanDownloader_O97M_Dridex_YD_MTB{
	meta:
		description = "TrojanDownloader:O97M/Dridex.YD!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,03 00 03 00 03 00 00 "
		
	strings :
		$a_01_0 = {45 78 65 63 75 74 65 45 78 63 65 6c 34 4d 61 63 72 6f 20 28 6d 6a 28 22 24 22 2c 20 64 33 2c 20 22 58 22 2c 20 73 67 2c 20 6d 6a 28 22 3b 22 2c 20 6b 6b 2c 20 22 27 22 2c 20 64 32 2c 20 68 68 29 29 29 } 		$a_01_1 = {6e 6d 20 3d 20 76 6f 28 43 65 6c 6c 73 28 6a 2c 20 31 29 2c 20 49 6e 74 28 28 34 20 2d 20 31 20 2b 20 31 29 20 2a 20 52 6e 64 20 2b 20 31 29 29 } 		$a_01_2 = {77 77 20 3d 20 53 74 72 43 6f 6e 76 28 61 77 2c 20 76 62 46 72 6f 6d 55 6e 69 63 6f 64 65 29 } 	condition:
		((#a_01_0  & 1)*1+(#a_01_1  & 1)*1+(#a_01_2  & 1)*1) >=3
 
}

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

cd32ee1f-2741-439d-a7ab-354bc3fec507

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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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