TrojanDownloader_O97M_Donoff_SS_MTB_7

YARA detection rule by roadwy

TrojanDownloader:O97M/Donoff.SS!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,04 00 04 00 04 00 00

rule TrojanDownloader_O97M_Donoff_SS_MTB_7{
	meta:
		description = "TrojanDownloader:O97M/Donoff.SS!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,04 00 04 00 04 00 00 "
		
	strings :
		$a_01_0 = {53 68 65 6c 6c 20 28 70 69 67 6c 65 74 20 26 20 22 20 2d 57 20 48 69 64 64 65 6e 20 2d 63 20 49 45 58 28 22 20 26 20 6f 77 6c 65 74 20 26 20 22 29 20 22 29 } 		$a_01_1 = {6f 77 6c 65 74 20 3d 20 6f 77 6c 65 74 20 2b 20 22 5c 22 22 20 22 20 26 20 77 68 65 6c 70 20 26 20 22 20 5c 22 22 29 29 3b 49 45 58 20 24 63 76 27 } 		$a_01_2 = {6f 77 6c 65 74 20 3d 20 6f 77 6c 65 74 20 2b 20 22 5b 53 79 73 74 65 6d 2e 54 65 78 74 2e 45 6e 63 6f 64 69 6e 67 5d 3a 3a 55 6e 69 63 6f 64 65 2e 47 65 74 53 74 72 69 6e 67 28 5b 53 79 73 74 65 6d 2e 43 6f 6e 76 65 72 74 5d 3a 3a 46 72 6f 6d 42 61 73 65 36 34 53 74 72 69 6e 67 28 } 		$a_01_3 = {77 68 65 6c 70 20 3d 20 77 68 65 6c 70 20 2b 20 22 77 42 32 41 47 55 41 63 67 41 67 41 48 4d 41 59 77 42 79 41 47 38 41 59 67 42 71 41 43 34 41 5a 41 42 73 41 47 77 41 } 	condition:
		((#a_01_0  & 1)*1+(#a_01_1  & 1)*1+(#a_01_2  & 1)*1+(#a_01_3  & 1)*1) >=4
 
}

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

61c67626-8455-4f1e-ab0a-543bb554afc7

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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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