TrojanDownloader_O97M_Otcontavir

YARA detection rule by roadwy

TrojanDownloader:O97M/Otcontavir,SIGNATURE_TYPE_MACROHSTR_EXT,01 00 01 00 02 00 00

rule TrojanDownloader_O97M_Otcontavir{
	meta:
		description = "TrojanDownloader:O97M/Otcontavir,SIGNATURE_TYPE_MACROHSTR_EXT,01 00 01 00 02 00 00 "
		
	strings :
		$a_01_0 = {22 68 74 22 20 26 20 22 74 70 3a 22 20 26 20 22 2f 22 20 26 20 22 2f 22 20 26 20 22 73 75 63 22 20 26 20 22 65 73 6f 72 65 73 2e 63 6f 6d 2e 6d 22 20 26 20 22 78 2f 69 6d 61 67 65 73 2f 6c 6f 22 20 26 20 22 67 6f 2e 67 22 20 26 20 22 69 66 22 } 		$a_01_1 = {68 74 74 70 3a 2f 2f 73 75 63 65 73 6f 72 65 73 2e 63 6f 6d 2e 6d 78 2f 69 6d 61 67 65 73 2f 6c 6f 67 6f 2e 67 69 66 } 	condition:
		((#a_01_0  & 1)*1+(#a_01_1  & 1)*1) >=1
 
}

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

64cffd02-220b-4e9c-a172-7e1d27449d90

Propose edits, view related rules, and engage with the community through comments.

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 ]]

Community Discussion