Backdoor_Win32_Dsrv_A

YARA detection rule by roadwy

Backdoor:Win32/Dsrv.A,SIGNATURE_TYPE_PEHSTR,05 00 05 00 05 00 00

rule Backdoor_Win32_Dsrv_A{
	meta:
		description = "Backdoor:Win32/Dsrv.A,SIGNATURE_TYPE_PEHSTR,05 00 05 00 05 00 00 "
		
	strings :
		$a_01_0 = {7e 54 68 75 6d 62 62 73 2e 54 4d 50 } 		$a_01_1 = {52 75 6e 44 6c 6c 33 32 78 56 64 2e 65 78 65 } 		$a_01_2 = {55 72 6c 44 6f 77 6e 46 69 6c 65 41 6e 64 52 75 6e } 		$a_01_3 = {55 70 53 65 72 76 65 46 69 6c 65 } 		$a_01_4 = {63 3a 5c 44 4c 4c 53 65 72 76 69 63 65 2e 54 58 54 } 	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) >=5
 
}

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

98e4f0bc-9163-4440-be1e-4c7eedeb3aa9

Propose edits, view related rules, and engage with the community through comments.

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 ]]

Community Discussion