TrojanDownloader_O97M_EncDoc_ARJ_MTB

YARA detection rule by roadwy

TrojanDownloader:O97M/EncDoc.ARJ!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,03 00 03 00 14 00 00

rule TrojanDownloader_O97M_EncDoc_ARJ_MTB{
	meta:
		description = "TrojanDownloader:O97M/EncDoc.ARJ!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,03 00 03 00 14 00 00 "
		
	strings :
		$a_01_0 = {68 74 74 70 73 3a 2f 2f 6e 6f 6e 6e 65 77 73 70 61 70 65 72 2e 63 6f 6d 2f 62 6f 74 2e 64 6c 6c } 		$a_01_1 = {68 74 74 70 73 3a 2f 2f 63 72 79 70 65 74 75 6e 69 61 2e 63 6f 6d 2f 63 72 79 70 74 2e 64 6c 6c } 		$a_01_2 = {68 74 74 70 3a 2f 2f 32 30 35 2e 31 38 35 2e 31 32 32 2e 32 34 36 2f 77 32 31 64 78 4d } 		$a_01_3 = {68 74 74 70 3a 2f 2f 32 30 39 2e 31 34 31 2e 35 34 2e 31 36 31 2f 33 2e 62 69 6e } 		$a_01_4 = {68 74 74 70 3a 2f 2f 69 6e 76 6f 69 63 65 37 6d 75 6b 73 7a 71 39 6e 62 70 61 37 6f 6e 6c 69 6e 65 2e 72 75 2f 63 69 72 6b 75 6d 66 6c 65 6b 73 2e 65 78 65 } 		$a_01_5 = {68 74 74 70 3a 2f 2f 7a 65 67 79 6e 2e 63 6f 6d 2f 6d 7a 70 71 6f 73 6a 66 2e 65 78 65 } 		$a_01_6 = {68 74 74 70 3a 2f 2f 72 69 73 77 65 67 2e 63 6f 6d 2f 66 6c 70 61 6f 71 6c 2e 65 78 65 } 		$a_01_7 = {68 74 74 70 3a 2f 2f 6c 75 79 69 74 61 77 2e 63 6f 6d 2f 6f 6b 61 73 6c 65 2e 65 78 65 } 		$a_01_8 = {68 74 74 70 3a 2f 2f 61 73 64 6a 67 6b 66 77 73 61 73 2e 63 6f 6d 2f 70 6c 6b 64 6d 63 2e 65 78 65 } 		$a_01_9 = {68 74 74 70 3a 2f 2f 31 39 34 2e 35 2e 32 34 39 2e 31 30 37 2f 32 4e 71 75 78 51 5a 32 6f 4b 34 61 34 35 4c 2e 70 68 70 } 		$a_01_10 = {68 74 74 70 3a 2f 2f 31 38 35 2e 31 38 30 2e 31 39 37 2e 36 36 2f 32 56 4a 44 5a 36 4a 61 71 7a 45 69 71 2e 70 68 70 } 		$a_01_11 = {68 74 74 70 3a 2f 2f 31 38 35 2e 39 39 2e 32 2e 38 33 2f 66 52 54 65 31 7a 30 78 69 57 75 38 71 2e 70 68 70 } 		$a_01_12 = {68 74 74 70 3a 2f 2f 39 34 2e 31 34 30 2e 31 31 35 2e 34 38 2f 57 67 34 4e 49 39 34 35 39 38 71 42 46 2e 70 68 70 } 		$a_01_13 = {68 74 74 70 3a 2f 2f 34 35 2e 31 31 2e 31 38 33 2e 37 38 2f 36 66 30 34 65 30 62 65 34 36 71 62 34 5a 63 2e 70 68 70 } 		$a_01_14 = {68 74 74 70 3a 2f 2f 31 39 38 2e 34 36 2e 31 39 38 2e 31 30 35 2f 71 36 70 64 4a 33 6c 37 59 71 32 57 2e 70 68 70 } 		$a_01_15 = {68 74 74 70 3a 2f 2f 72 6f 63 65 73 69 2e 63 6f 6d 2f 6d 6e 63 65 6a 64 2e 65 78 65 } 		$a_01_16 = {68 74 74 70 3a 2f 2f 67 75 72 75 6f 66 62 75 6c 6c 65 74 2e 78 79 7a 2f 6d 6e 63 65 6a 64 2e 65 78 65 } 		$a_01_17 = {68 74 74 70 73 3a 2f 2f 77 77 77 2e 76 69 63 74 6f 72 69 61 2d 76 69 65 77 2e 63 6f 6d 2f 76 69 65 77 2f 6c 6f 63 6f 6d 6f 6b 6f 6e 65 77 2e 70 68 70 } 		$a_01_18 = {55 52 4c 44 6f 77 6e 6c 6f 61 64 54 6f 46 69 6c 65 41 } 		$a_01_19 = {4a 4a 43 43 43 43 4a } 	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+(#a_01_6  & 1)*1+(#a_01_7  & 1)*1+(#a_01_8  & 1)*1+(#a_01_9  & 1)*1+(#a_01_10  & 1)*1+(#a_01_11  & 1)*1+(#a_01_12  & 1)*1+(#a_01_13  & 1)*1+(#a_01_14  & 1)*1+(#a_01_15  & 1)*1+(#a_01_16  & 1)*1+(#a_01_17  & 1)*1+(#a_01_18  & 1)*1+(#a_01_19  & 1)*1) >=3
 
}

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

bbea71ba-7121-4295-91c5-d1f1666f132f

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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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