Backdoor_Win32_Lecna_A_dha

YARA detection rule by roadwy

Backdoor:Win32/Lecna.A!dha,SIGNATURE_TYPE_PEHSTR_EXT,08 00 08 00 0d 00 00

rule Backdoor_Win32_Lecna_A_dha{
	meta:
		description = "Backdoor:Win32/Lecna.A!dha,SIGNATURE_TYPE_PEHSTR_EXT,08 00 08 00 0d 00 00 "
		
	strings :
		$a_01_0 = {77 77 77 2e 6c 69 73 77 6f 72 64 2e 63 6f 6d } 		$a_01_1 = {77 77 77 2e 6e 65 77 70 72 65 73 73 65 73 2e 63 6f 6d } 		$a_01_2 = {77 77 77 2e 61 70 70 73 65 63 6e 69 63 2e 63 6f 6d } 		$a_01_3 = {44 6f 20 6e 6f 74 20 73 68 6f 77 20 74 68 69 73 20 6d 65 73 73 61 67 65 20 61 67 61 69 6e 20 62 65 66 6f 72 65 20 72 65 62 6f 6f 74 69 6e 67 2e 00 } 		$a_01_4 = {26 49 67 6e 6f 72 65 00 } 		$a_01_5 = {26 4e 6f 74 65 20 61 63 74 69 6f 6e 20 73 65 6c 65 63 74 65 64 20 66 6f 72 20 74 68 69 73 20 66 69 6c 65 20 28 64 61 6e 67 65 72 6f 75 73 29 } 		$a_01_6 = {49 20 74 72 75 73 74 20 74 68 65 20 70 72 6f 67 72 61 6d 2e 20 4c 65 74 20 69 74 20 63 6f 6e 74 69 6e 75 65 2e 00 } 		$a_01_7 = {44 6f 20 6e 6f 26 74 20 73 68 6f 77 20 74 68 69 73 20 64 69 61 6c 6f 67 20 66 6f 72 20 74 68 69 73 20 70 72 6f 67 72 61 6d 20 61 67 61 69 6e 00 } 		$a_01_8 = {53 61 76 65 20 6d 79 20 61 6e 73 77 65 72 20 61 73 20 61 20 70 65 72 6d 61 6e 65 6e 74 20 72 75 6c 65 2c 20 61 6e 64 20 64 6f 20 6e 6f 74 20 61 73 6b 20 6d 65 20 6e 65 78 74 20 74 69 6d 65 2e 00 } 		$a_01_9 = {4d 69 63 72 6f 73 6f 66 74 5a 6a 53 59 4e 6f 52 65 67 } 		$a_01_10 = {4d 69 63 72 6f 73 6f 66 74 53 59 4e 6f 52 65 67 45 78 69 74 } 		$a_01_11 = {4d 69 63 72 6f 73 6f 66 74 53 59 4e 6f 52 65 67 48 61 76 65 45 78 69 74 } 		$a_01_12 = {4d 69 63 72 6f 73 6f 66 74 53 59 4e 6f 52 65 67 48 61 76 65 41 63 6b } 	condition:
		((#a_01_0  & 1)*2+(#a_01_1  & 1)*2+(#a_01_2  & 1)*2+(#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) >=8
 
}

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

85559a1c-d2e6-4b74-9480-9eb6552658ce

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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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