TrojanDownloader_O97M_Obfuse_EF

YARA detection rule by roadwy

TrojanDownloader:O97M/Obfuse.EF,SIGNATURE_TYPE_MACROHSTR_EXT,02 00 02 00 02 00 00

rule TrojanDownloader_O97M_Obfuse_EF{
	meta:
		description = "TrojanDownloader:O97M/Obfuse.EF,SIGNATURE_TYPE_MACROHSTR_EXT,02 00 02 00 02 00 00 "
		
	strings :
		$a_01_0 = {53 75 62 20 41 75 74 6f 4f 70 65 6e 28 29 } 		$a_03_1 = {47 65 74 4f 62 6a 65 63 74 28 22 6e 65 77 3a 31 33 37 30 39 36 32 30 2d 43 32 37 39 2d 31 31 43 45 2d 41 34 39 45 2d 34 34 34 35 35 33 35 34 30 30 30 30 22 29 2e 53 68 65 6c 6c 45 78 65 63 75 74 65 20 22 63 [0-20] 2e 65 78 65 22 2c 20 49 6e 6c 69 6e 65 53 68 61 70 65 73 28 28 33 20 2d 20 35 29 20 2a 20 28 2d 31 29 29 2e 41 6c 74 65 72 6e 61 74 69 76 65 54 65 78 74 2c 20 22 22 2c 20 22 22 2c 20 30 } 	condition:
		((#a_01_0  & 1)*1+(#a_03_1  & 1)*1) >=2
 
}

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

d8506cb9-0687-468d-a928-d55c90acfdde

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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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