TrojanDownloader_Win32_Rirdra

YARA detection rule by roadwy

TrojanDownloader:Win32/Rirdra,SIGNATURE_TYPE_PEHSTR_EXT,04 00 04 00 04 00 00

rule TrojanDownloader_Win32_Rirdra{
	meta:
		description = "TrojanDownloader:Win32/Rirdra,SIGNATURE_TYPE_PEHSTR_EXT,04 00 04 00 04 00 00 "
		
	strings :
		$a_01_0 = {00 31 31 35 2e 32 38 2e 33 32 2e 31 32 00 } 		$a_01_1 = {47 45 54 20 2f 37 2f 3f 72 3d 73 69 74 65 2f 47 54 43 44 20 48 54 54 50 2f 31 2e 30 0d 0a 48 6f 73 74 3a 20 31 31 35 2e 32 38 2e 33 32 2e 31 32 0d 0a } 		$a_01_2 = {53 48 47 65 74 46 6f 6c 64 65 72 50 61 74 68 41 } 		$a_01_3 = {55 6e 69 6e 69 74 69 61 6c 69 7a 65 43 6f 6d } 	condition:
		((#a_01_0  & 1)*1+(#a_01_1  & 1)*1+(#a_01_2  & 1)*1+(#a_01_3  & 1)*1) >=4
 
}

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

2ba35b42-1dd8-4baa-9617-bfd2941d057e

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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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