Backdoor_WinNT_Tofsee_A_sys

YARA detection rule by roadwy

Backdoor:WinNT/Tofsee.A!sys,SIGNATURE_TYPE_PEHSTR_EXT,0c 00 0c 00 06 00 00

rule Backdoor_WinNT_Tofsee_A_sys{
	meta:
		description = "Backdoor:WinNT/Tofsee.A!sys,SIGNATURE_TYPE_PEHSTR_EXT,0c 00 0c 00 06 00 00 "
		
	strings :
		$a_01_0 = {0f 20 c0 50 25 ff ff fe ff 0f 22 c0 8b 45 08 89 41 01 8b 45 0c 2b c1 83 e8 0a c6 01 b9 c6 41 05 e9 } 		$a_01_1 = {89 41 06 58 0f 22 c0 66 9d 8b c1 5d c2 08 00 53 56 57 bf 2e 6b 64 44 57 68 80 00 00 00 33 } 		$a_01_2 = {74 10 8a 10 88 14 01 40 3b 45 08 75 f5 eb 03 8b 5d f8 8b 4d fc 8b 46 04 89 4e 04 8b f1 eb 07 4f } 		$a_01_3 = {4e 74 51 75 65 72 79 53 79 73 74 65 6d 49 6e 66 6f 72 6d 61 74 69 6f 6e } 		$a_00_4 = {4d 6f 76 65 46 69 6c 65 45 78 41 } 		$a_00_5 = {4e 74 57 72 69 74 65 46 69 6c 65 } 	condition:
		((#a_01_0  & 1)*3+(#a_01_1  & 1)*3+(#a_01_2  & 1)*6+(#a_01_3  & 1)*1+(#a_00_4  & 1)*1+(#a_00_5  & 1)*1) >=12
 
}

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

118800ad-75c4-4854-90b6-35b0dd05a630

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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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