TrojanDownloader_O97M_Ripnecs_A

YARA detection rule by roadwy

TrojanDownloader:O97M/Ripnecs.A,SIGNATURE_TYPE_MACROHSTR_EXT,01 00 01 00 04 00 00

rule TrojanDownloader_O97M_Ripnecs_A{
	meta:
		description = "TrojanDownloader:O97M/Ripnecs.A,SIGNATURE_TYPE_MACROHSTR_EXT,01 00 01 00 04 00 00 "
		
	strings :
		$a_01_0 = {53 68 65 6c 6c 28 45 6e 76 69 72 6f 6e 28 42 61 73 65 36 34 44 65 63 6f 64 65 28 22 56 47 56 74 63 41 3d 3d 22 29 29 } 		$a_01_1 = {43 72 65 61 74 65 4f 62 6a 65 63 74 28 42 61 73 65 36 34 44 65 63 6f 64 65 28 22 54 57 6c 6a 63 6d 39 7a 62 32 5a 30 4c 6c 68 4e 54 45 68 55 56 46 41 3d 22 29 29 } 		$a_01_2 = {4f 70 65 6e 20 42 61 73 65 36 34 44 65 63 6f 64 65 28 22 52 30 56 55 22 29 } 		$a_01_3 = {43 72 65 61 74 65 4f 62 6a 65 63 74 28 42 61 73 65 36 34 44 65 63 6f 64 65 28 22 51 55 52 50 52 45 49 75 55 33 52 79 5a 57 46 74 22 29 29 } 	condition:
		((#a_01_0  & 1)*1+(#a_01_1  & 1)*1+(#a_01_2  & 1)*1+(#a_01_3  & 1)*1) >=1
 
}

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

a7bbcddb-3eda-4eb7-a5cd-6b1727d1e0c3

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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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