TrojanDownloader_O97M_Donoff_STE_MTB

YARA detection rule by roadwy

TrojanDownloader:O97M/Donoff.STE!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,01 00 01 00 01 00 00

rule TrojanDownloader_O97M_Donoff_STE_MTB{
	meta:
		description = "TrojanDownloader:O97M/Donoff.STE!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,01 00 01 00 01 00 00 "
		
	strings :
		$a_03_0 = {50 49 44 20 3d 20 53 68 65 6c 6c 28 22 63 6d 64 20 2f 63 20 63 65 72 74 75 74 69 6c 2e 65 78 65 20 2d 75 72 6c 63 61 63 68 65 20 2d 73 70 6c 69 74 20 2d 66 20 22 22 68 74 74 70 3a 2f 2f 32 30 2e 34 30 2e 39 37 2e 39 34 2f 69 74 6c 2f 6c 6f 61 64 65 72 2f 75 70 6c 6f 61 64 73 2f [0-15] 2e 62 61 74 22 22 20 [0-16] 2e 65 78 65 2e 65 78 65 20 26 26 20 90 1b 01 2e 65 78 65 2e 65 78 65 22 2c 20 76 62 48 69 64 65 29 } 	condition:
		((#a_03_0  & 1)*1) >=1
 
}

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

86e75dbe-82eb-442b-a5c1-ea489e5ad65c

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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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