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MALPEDIA_Win_Vapor_Rage_Auto

autogenerated rule brought to you by yara-signator

MalwareVapor RageMalpedia signator rulesCreative Commons Attribution-ShareAlike 4.0Compiles with YARA-X
Author
Felix Bilstein - yara-signator at cocacoding dot com
Date
2026-05-04
Modified
2026-05-18
Score / Quality
75 / 75

What this rule detects

autogenerated rule brought to you by yara-signator

Associated malware family: Vapor Rage.

It defines 10 patterns (0 text, 10 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

win-vapor-rage-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Vapor_Rage_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "1e8c56d3-bc96-5685-bd56-a98ffc12ea42"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.vapor_rage"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.vapor_rage_auto.yar#L1-L121"
		license_url = "N/A"
		logic_hash = "bcb29a40e43ca6bc0df9030dbaebb46847b85eeeed0febe0ded947e1c76a6b49"
		score = 75
		quality = 75
		tags = "FILE"
		version = "1"
		tool = "yara-signator v0.6.0"
		signator_config = "callsandjumps;datarefs;binvalue"
		malpedia_rule_date = "20260422"
		malpedia_hash = "a182e35da64e6d71cb55f125c4d4225196523f14"
		malpedia_version = "20260504"
		malpedia_license = "CC BY-SA 4.0"
		malpedia_sharing = "TLP:WHITE"

	strings:
		$sequence_0 = { e8???????? a1???????? 85c0 7f04 33c0 eb59 }
		$sequence_1 = { eb59 48 a3???????? e8???????? 8845e4 8365fc00 }
		$sequence_2 = { 8b45d4 50 6a05 8b4de4 51 ff15???????? }
		$sequence_3 = { ff15???????? eb1e 8b4de4 51 }
		$sequence_4 = { e8???????? c705????????01000000 e8???????? 84c0 744d e8???????? e8???????? }
		$sequence_5 = { c745e400000000 6a00 6800008000 6a00 6a00 6a00 8b55d0 }
		$sequence_6 = { c705????????02000000 a900000008 7454 a9???????? }
		$sequence_7 = { 52 6a1f 8b45e4 50 ff15???????? }
		$sequence_8 = { 81ca80000000 8955f8 6a04 8d45f8 50 6a1f }
		$sequence_9 = { 6800008000 6a00 6a00 6a00 8b55d0 52 }

	condition:
		7 of them and filesize < 296960
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ e8???????? a1???????? 85c0 7f04 33c0 eb59 }
$sequence_1hex{ eb59 48 a3???????? e8???????? 8845e4 8365fc00 }
$sequence_2hex{ 8b45d4 50 6a05 8b4de4 51 ff15???????? }
$sequence_3hex{ ff15???????? eb1e 8b4de4 51 }
$sequence_4hex{ e8???????? c705????????01000000 e8???????? 84c0 744d e8???????? e8???????? }
$sequence_5hex{ c745e400000000 6a00 6800008000 6a00 6a00 6a00 8b55d0 }
$sequence_6hex{ c705????????02000000 a900000008 7454 a9???????? }
$sequence_7hex{ 52 6a1f 8b45e4 50 ff15???????? }
$sequence_8hex{ 81ca80000000 8955f8 6a04 8d45f8 50 6a1f }
$sequence_9hex{ 6800008000 6a00 6a00 6a00 8b55d0 52 }

Condition

7 of them and filesize < 296960

In plain words (Heuristic)

  • The file must be smaller than 296960 (a cheap guard that skips large files).
  • At least 7 patterns in the rule must match.

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References

Licence & attribution

Author: Felix Bilstein - yara-signator at cocacoding dot com

Source repository: Malpedia signator rules @ c901f97b7d

Licence: Creative Commons Attribution-ShareAlike 4.0 (repository licence)

Original rule

Mirrored via YARA Forge 20260927, which prefixes rule names with the source and adds normalised meta fields.

Rule id: 1e8c56d3-bc96-5685-bd56-a98ffc12ea42

Metadata

version1
toolyara-signator v0.6.0
signator_configcallsandjumps;datarefs;binvalue
malpedia_rule_date20260422
malpedia_hasha182e35da64e6d71cb55f125c4d4225196523f14
malpedia_version20260504
malpedia_licenseCC BY-SA 4.0
malpedia_sharingTLP:WHITE

Tags:FILE