Backdoor_Win32_Tofsee_B_2

YARA detection rule by roadwy

Backdoor:Win32/Tofsee.B,SIGNATURE_TYPE_PEHSTR,1e 00 1e 00 13 00 00

rule Backdoor_Win32_Tofsee_B_2{
	meta:
		description = "Backdoor:Win32/Tofsee.B,SIGNATURE_TYPE_PEHSTR,1e 00 1e 00 13 00 00 "
		
	strings :
		$a_01_0 = {66 62 3a 20 73 75 62 3d 27 25 73 27 } 		$a_01_1 = {66 62 3a 20 73 3d 27 25 73 27 } 		$a_01_2 = {66 62 3a 20 70 72 65 73 65 6e 63 65 3d 27 25 73 27 } 		$a_01_3 = {66 62 3a 20 70 3d 27 25 73 27 } 		$a_01_4 = {66 62 3a 20 6c 75 3d 27 25 73 27 } 		$a_01_5 = {66 62 3a 20 66 72 3d 27 25 73 27 } 		$a_01_6 = {66 62 3a 20 64 61 74 72 3d 27 25 73 27 } 		$a_01_7 = {66 62 3a 20 78 73 3d 27 25 73 27 } 		$a_01_8 = {66 62 3a 20 63 5f 75 73 65 72 3d 27 25 73 27 } 		$a_01_9 = {66 62 3a 20 49 45 20 66 6f 75 6e 64 } 		$a_01_10 = {66 61 63 65 62 6f 6f 6b 2e 63 6f 6d } 		$a_01_11 = {54 57 20 25 73 20 70 65 72 72 } 		$a_01_12 = {54 57 20 25 73 20 70 72 69 76 } 		$a_01_13 = {54 57 20 25 73 20 72 65 63 70 } 		$a_01_14 = {54 57 20 25 73 20 63 6f 6f 6b } 		$a_01_15 = {54 57 20 25 73 20 6d 6f 62 69 } 		$a_01_16 = {54 57 20 25 73 20 6f 70 65 6e } 		$a_01_17 = {54 57 20 25 73 20 63 61 6c 6c } 		$a_01_18 = {2e 74 77 69 74 74 65 72 2e 63 6f 6d } 	condition:
		((#a_01_0  & 1)*1+(#a_01_1  & 1)*1+(#a_01_2  & 1)*1+(#a_01_3  & 1)*1+(#a_01_4  & 1)*1+(#a_01_5  & 1)*1+(#a_01_6  & 1)*1+(#a_01_7  & 1)*1+(#a_01_8  & 1)*1+(#a_01_9  & 1)*1+(#a_01_10  & 1)*1+(#a_01_11  & 1)*1+(#a_01_12  & 1)*1+(#a_01_13  & 1)*1+(#a_01_14  & 1)*1+(#a_01_15  & 1)*1+(#a_01_16  & 1)*1+(#a_01_17  & 1)*1+(#a_01_18  & 1)*1) >=30
 
}

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

0d02944a-21c5-448d-a9d1-44d200b2b4b6

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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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