TrojanDownloader_O97M_Obfuse_PREF_MTB

YARA detection rule by roadwy

TrojanDownloader:O97M/Obfuse.PREF!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,03 00 03 00 03 00 00

rule TrojanDownloader_O97M_Obfuse_PREF_MTB{
	meta:
		description = "TrojanDownloader:O97M/Obfuse.PREF!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,03 00 03 00 03 00 00 "
		
	strings :
		$a_01_0 = {53 51 42 46 41 46 67 41 49 41 41 67 41 43 67 41 54 67 42 6c 41 48 63 41 4c 51 42 50 41 47 49 41 61 67 42 6c 41 47 4d 41 64 41 41 67 41 45 34 41 5a 51 42 30 41 43 34 41 56 77 42 6c 41 47 49 41 51 77 42 73 41 47 6b 41 5a 51 42 75 41 48 51 41 4b 51 41 75 41 45 51 41 62 77 42 33 41 47 34 41 62 41 42 76 41 47 45 41 5a 41 42 54 41 48 51 41 63 67 42 70 41 47 34 41 5a 77 41 75 41 45 6b 41 62 67 42 32 41 47 38 41 61 77 42 6c 41 43 67 41 4a 77 41 4e 41 41 6f 41 61 41 42 30 41 48 51 41 63 41 } 		$a_01_1 = {42 7a 41 44 6f 41 4c 77 41 76 41 47 55 41 62 67 42 6a 41 48 55 41 63 67 42 30 41 47 45 41 5a 41 42 76 41 48 49 41 4c 67 42 6a 41 47 38 41 62 51 41 75 41 47 49 41 63 67 41 76 41 47 34 41 64 41 42 46 41 45 63 41 56 51 41 4e 41 41 6f 41 4a 77 41 70 41 44 73 41 49 41 41 4e 41 41 6f 41 63 41 42 4a 41 47 67 41 57 51 42 72 41 46 4d 41 52 77 42 45 41 45 45 41 53 77 42 42 41 45 67 41 52 41 42 47 41 45 51 41 52 51 42 4f 41 45 55 41 59 51 42 51 41 45 49 41 59 51 42 51 41 45 6f 41 5a 67 42 6f } 		$a_01_2 = {69 66 2e 65 78 65 63 75 74 65 3e 30 74 68 65 6e 66 6f 72 6c 63 6f 75 6e 74 3d 31 74 6f 2e 66 6f 75 6e 64 66 69 6c 65 73 2e 63 6f 75 6e 74 73 65 74 77 62 72 65 73 75 6c 74 73 3d 77 6f 72 6b 62 6f 6f 6b 73 2e 6f 70 65 6e 28 66 69 6c 65 6e 61 6d 65 3a 3d 2e 66 6f 75 6e 64 66 69 6c 65 73 28 6c 63 6f 75 6e 74 29 2c 75 70 64 61 74 65 6c 69 6e 6b 73 3a 3d 30 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 ]]

c36adee8-9854-4e8a-80c5-84b3a909b938

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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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