TrojanDownloader_O97M_Dridex_PCA_MTB

YARA detection rule by roadwy

TrojanDownloader:O97M/Dridex.PCA!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,09 00 09 00 09 00 00

rule TrojanDownloader_O97M_Dridex_PCA_MTB{
	meta:
		description = "TrojanDownloader:O97M/Dridex.PCA!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,09 00 09 00 09 00 00 "
		
	strings :
		$a_00_0 = {4a 6f 69 6e 28 41 72 72 61 79 28 43 68 72 57 28 43 4c 6e 67 28 28 78 6c 45 78 63 65 6c 33 20 58 6f 72 20 28 28 } 		$a_00_1 = {44 65 62 75 67 2e 50 72 69 6e 74 20 4d 69 32 33 47 75 39 66 54 6d 34 6d 66 4d 4c 76 76 } 		$a_00_2 = {3d 20 41 62 73 28 43 4c 6e 67 28 28 4e 6f 74 } 		$a_00_3 = {41 73 63 28 4c 65 66 74 24 28 4d 69 64 24 28 6c 52 54 51 5f 71 4b 6e 5f 69 4d 51 34 5f 35 6a 52 2c 20 49 4d 54 4d 57 30 62 33 5a 49 30 76 41 29 } 		$a_00_4 = {4c 69 62 20 22 75 73 65 72 33 32 2e 64 6c 6c 22 20 41 6c 69 61 73 20 22 50 6f 73 74 4d 65 73 73 61 67 65 41 22 20 28 42 79 56 61 6c 20 59 78 47 5a 41 5f 4c 55 7a 5f 48 32 4e 69 20 41 73 20 4c 6f 6e 67 } 		$a_00_5 = {4c 69 62 20 22 75 73 65 72 33 32 2e 64 6c 6c 22 20 41 6c 69 61 73 20 22 46 69 6e 64 57 69 6e 64 6f 77 45 78 41 22 20 28 42 79 56 61 6c 20 76 6e 68 6d 5f 32 59 63 5f 33 78 4e 5f 79 33 76 6a 20 41 73 20 4c 6f 6e 67 } 		$a_00_6 = {45 6e 76 69 72 6f 6e 28 56 35 75 34 6f 5f 45 58 6d 5f 35 79 67 5f 46 37 54 34 29 } 		$a_00_7 = {2e 43 72 65 61 74 65 20 44 64 7a 70 72 30 79 2c 20 4e 75 6c 6c 2c 20 43 47 30 56 75 5f 30 6b 4c 5f 59 59 4b 5f 46 50 30 } 		$a_00_8 = {43 68 72 57 28 43 4c 6e 67 28 28 41 73 63 28 22 20 22 29 29 29 } 	condition:
		((#a_00_0  & 1)*1+(#a_00_1  & 1)*1+(#a_00_2  & 1)*1+(#a_00_3  & 1)*1+(#a_00_4  & 1)*1+(#a_00_5  & 1)*1+(#a_00_6  & 1)*1+(#a_00_7  & 1)*1+(#a_00_8  & 1)*1) >=9
 
}

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

6d4c0b88-a4ac-4328-8d98-777b875ba87b

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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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