TrojanDropper_O97M_Donoff_STD_MTB

YARA detection rule by roadwy

TrojanDropper:O97M/Donoff.STD!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,02 00 02 00 02 00 00

rule TrojanDropper_O97M_Donoff_STD_MTB{
	meta:
		description = "TrojanDropper:O97M/Donoff.STD!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,02 00 02 00 02 00 00 "
		
	strings :
		$a_01_0 = {3d 20 53 68 65 6c 6c 28 22 43 3a 5c 55 73 65 72 73 5c 50 75 62 6c 69 63 5c 63 61 6c 63 2e 63 6f 6d 20 22 22 68 74 74 70 3a 2f 2f 64 6f 63 75 6d 65 6e 74 73 2e 70 72 6f 2e 62 72 2f 69 6e 6a 63 74 69 6f 6e 2e 6d 70 33 22 22 22 2c 20 76 62 4e 6f 72 6d 61 6c 46 6f 63 75 73 29 } 		$a_01_1 = {66 73 6f 2e 63 6f 70 79 66 69 6c 65 20 22 43 3a 5c 57 69 6e 64 6f 77 73 5c 53 79 73 74 65 6d 33 32 5c 6d 73 68 74 61 2e 65 78 65 22 2c 20 45 6e 76 69 72 6f 6e 28 22 50 55 42 4c 49 43 22 29 20 26 20 22 5c 63 61 6c 63 2e 63 6f 6d 22 2c 20 54 72 75 65 } 	condition:
		((#a_01_0  & 1)*1+(#a_01_1  & 1)*1) >=2
 
}

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

c5cf1902-45ae-46d3-b537-0f69dc4434fc

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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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