Ransom_Win32_Egregor_A_MTB

YARA detection rule by roadwy

Ransom:Win32/Egregor.A!MTB,SIGNATURE_TYPE_PEHSTR_EXT,05 00 05 00 06 00 00

rule Ransom_Win32_Egregor_A_MTB{
	meta:
		description = "Ransom:Win32/Egregor.A!MTB,SIGNATURE_TYPE_PEHSTR_EXT,05 00 05 00 06 00 00 "
		
	strings :
		$a_81_0 = {25 47 72 65 65 74 69 6e 67 73 32 74 61 72 67 65 74 25 } 		$a_81_1 = {25 65 67 72 65 67 6f 72 5f 64 61 74 61 25 } 		$a_81_2 = {2d 2d 45 47 52 45 47 4f 52 2d 2d } 		$a_81_3 = {49 20 64 6f 20 6e 6f 74 20 66 65 61 72 20 79 6f 75 72 20 74 68 72 65 61 74 73 21 } 		$a_81_4 = {6d 73 66 74 65 73 71 6c 2e 65 78 65 3b 73 71 6c 61 67 65 6e 74 2e 65 78 65 3b 73 71 6c 62 72 6f 77 73 65 72 2e 65 78 65 3b 73 71 6c 77 72 69 74 65 72 2e 65 78 65 3b } 		$a_81_5 = {59 6f 75 72 20 6e 65 74 77 6f 72 6b 20 77 61 73 20 41 54 54 41 43 4b 45 44 } 	condition:
		((#a_81_0  & 1)*1+(#a_81_1  & 1)*1+(#a_81_2  & 1)*1+(#a_81_3  & 1)*1+(#a_81_4  & 1)*1+(#a_81_5  & 1)*1) >=5
 
}

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

b57af588-8e3f-48f9-aff6-c85a4649250d

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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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