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MALPEDIA_Win_Redshawl_Auto

autogenerated rule brought to you by yara-signator

MalwareRedshawlMalpedia 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: Redshawl.

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

Summary generated from the rule's metadata and condition.

Rule source

win-redshawl-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Redshawl_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "4c456005-6eca-5b81-8b66-a093c12005e5"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.redshawl"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.redshawl_auto.yar#L1-L123"
		license_url = "N/A"
		logic_hash = "8e56032befee22912f239204df689020251e0862de8ab36f3ae7f172ba6ad37f"
		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 = { 8b5c2420 448bc3 488d54246c 488d0d4f9f0000 e8???????? }
		$sequence_1 = { baa00f0000 ffc6 488d0c80 488d05baaa0000 488d0cc8 }
		$sequence_2 = { 33c0 eb22 488d542440 498bcc ff15???????? 85c0 0f8564ffffff }
		$sequence_3 = { ebc9 488bcb 488bc3 488d15eb7d0000 }
		$sequence_4 = { 8a03 488d1501840000 ffc7 4a8b0ce2 4188440f4c 4a8b04e2 41c744075001000000 }
		$sequence_5 = { 48ff25???????? 4883ec48 488364243000 8364242800 41b803000000 488d0d6c320000 4533c9 }
		$sequence_6 = { c744242800000000 488d85b8000000 4889442420 4533c9 448bc3 33d2 b900110000 }
		$sequence_7 = { e9???????? 8bb424a0000000 448bc6 418bd4 488d0dee990000 e8???????? }
		$sequence_8 = { 488bd9 488d0575910000 488981a0000000 83611000 c7411c01000000 }
		$sequence_9 = { 7457 33c0 48898424b8000000 4889442430 89442428 488d8424b8000000 }

	condition:
		7 of them and filesize < 174080
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 8b5c2420 448bc3 488d54246c 488d0d4f9f0000 e8???????? }
$sequence_1hex{ baa00f0000 ffc6 488d0c80 488d05baaa0000 488d0cc8 }
$sequence_2hex{ 33c0 eb22 488d542440 498bcc ff15???????? 85c0 0f8564ffffff }
$sequence_3hex{ ebc9 488bcb 488bc3 488d15eb7d0000 }
$sequence_4hex{ 8a03 488d1501840000 ffc7 4a8b0ce2 4188440f4c 4a8b04e2 41c744075001000000 }
$sequence_5hex{ 48ff25???????? 4883ec48 488364243000 8364242800 41b803000000 488d0d6c320000 4533c9 }
$sequence_6hex{ c744242800000000 488d85b8000000 4889442420 4533c9 448bc3 33d2 b900110000 }
$sequence_7hex{ e9???????? 8bb424a0000000 448bc6 418bd4 488d0dee990000 e8???????? }
$sequence_8hex{ 488bd9 488d0575910000 488981a0000000 83611000 c7411c01000000 }
$sequence_9hex{ 7457 33c0 48898424b8000000 4889442430 89442428 488d8424b8000000 }

Condition

7 of them and filesize < 174080

In plain words (Heuristic)

  • The file must be smaller than 174080 (a cheap guard that skips large files).
  • At least 7 patterns in the rule must match.

Test this rule in your browser

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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: 4c456005-6eca-5b81-8b66-a093c12005e5

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