Backdoor_Win32_Fynloski_R

YARA detection rule by roadwy

Backdoor:Win32/Fynloski.R,SIGNATURE_TYPE_PEHSTR_EXT,06 00 06 00 11 00 00

rule Backdoor_Win32_Fynloski_R{
	meta:
		description = "Backdoor:Win32/Fynloski.R,SIGNATURE_TYPE_PEHSTR_EXT,06 00 06 00 11 00 00 "
		
	strings :
		$a_00_0 = {41 6e 74 69 56 69 72 75 73 44 69 73 61 62 6c 65 4e 6f 74 69 66 79 } 		$a_00_1 = {41 63 74 69 76 65 4f 6e 6c 69 6e 65 4b 65 79 6c 6f 67 67 65 72 } 		$a_00_2 = {23 53 65 6e 64 43 6c 69 70 } 		$a_00_3 = {23 46 72 65 65 7a 65 49 4f } 		$a_00_4 = {23 42 4f 54 23 56 69 73 69 74 55 72 6c } 		$a_00_5 = {23 42 4f 54 23 4f 70 65 6e 55 72 6c } 		$a_00_6 = {23 42 4f 54 23 50 69 6e 67 } 		$a_00_7 = {23 42 4f 54 23 52 75 6e 50 72 6f 6d 70 74 } 		$a_00_8 = {23 42 4f 54 23 55 52 4c 55 70 64 61 74 65 } 		$a_00_9 = {23 42 4f 54 23 55 52 4c 44 6f 77 6e 6c 6f 61 64 } 		$a_00_10 = {23 42 4f 54 23 43 6c 6f 73 65 53 65 72 76 65 72 } 		$a_00_11 = {23 52 65 6d 6f 74 65 53 63 72 65 65 6e 53 69 7a 65 } 		$a_00_12 = {44 44 4f 53 48 54 54 50 46 4c 4f 4f 44 } 		$a_00_13 = {44 44 4f 53 53 59 4e 46 4c 4f 4f 44 } 		$a_00_14 = {44 44 4f 53 55 44 50 46 4c 4f 4f 44 } 		$a_00_15 = {41 43 54 49 56 45 52 45 4d 4f 54 45 53 48 45 4c 4c } 		$a_01_16 = {43 6f 6d 65 74 20 52 41 54 20 4c 65 67 61 63 79 20 69 73 20 61 6c 72 65 61 64 79 20 61 63 74 69 76 65 20 69 6e 20 79 6f 75 72 20 73 79 73 74 65 6d } 	condition:
		((#a_00_0  & 1)*1+(#a_00_1  & 1)*1+(#a_00_2  & 1)*1+(#a_00_3  & 1)*1+(#a_00_4  & 1)*1+(#a_00_5  & 1)*1+(#a_00_6  & 1)*1+(#a_00_7  & 1)*1+(#a_00_8  & 1)*1+(#a_00_9  & 1)*1+(#a_00_10  & 1)*1+(#a_00_11  & 1)*1+(#a_00_12  & 1)*1+(#a_00_13  & 1)*1+(#a_00_14  & 1)*1+(#a_00_15  & 1)*1+(#a_01_16  & 1)*-100) >=6
 
}

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

08e8aa51-a577-4743-9cdb-7fb126781747

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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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