Backdoor_Win32_Zxshell_A_dha

YARA detection rule by roadwy

Backdoor:Win32/Zxshell.A!dha,SIGNATURE_TYPE_PEHSTR_EXT,03 00 03 00 03 00 00

rule Backdoor_Win32_Zxshell_A_dha{
	meta:
		description = "Backdoor:Win32/Zxshell.A!dha,SIGNATURE_TYPE_PEHSTR_EXT,03 00 03 00 03 00 00 "
		
	strings :
		$a_01_0 = {5a 58 53 6f 63 6b 50 72 6f 78 79 20 5b 2d 62 5d 20 3c 50 6f 72 74 3e 20 5b 2d 75 5d 20 3c 55 73 65 72 6e 61 6d 65 3e 20 5b 2d 70 5d 20 3c 50 61 73 73 77 6f 72 64 3e } 		$a_01_1 = {72 75 6e 61 73 20 75 73 65 72 20 70 61 73 73 77 6f 72 64 20 74 65 73 74 2e 65 78 65 20 20 28 72 75 6e 20 74 65 73 74 2e 65 78 65 20 61 73 20 75 73 65 72 29 0d 0a } 		$a_01_2 = {53 68 61 72 65 53 68 65 6c 6c 20 49 50 20 50 6f 72 74 20 2d 6e 63 0d 0a } 	condition:
		((#a_01_0  & 1)*1+(#a_01_1  & 1)*1+(#a_01_2  & 1)*1) >=3
 
}

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

52f2e20b-6af5-48e7-a3a2-858bd0a148ef

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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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