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MALPEDIA_Win_Redpepper_Auto

autogenerated rule brought to you by yara-signator

MalwareRedpepperMalpedia 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: Redpepper.

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

Summary generated from the rule's metadata and condition.

Rule source

win-redpepper-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Redpepper_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "f77416cf-57cd-5a74-bf4f-4ea580dd250c"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.redpepper"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.redpepper_auto.yar#L1-L131"
		license_url = "N/A"
		logic_hash = "813ccacfb8c59c7843322d71d2af3cd8f1dd82fe1e6d7b898b1da1a669bc0fb5"
		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 = { 8b6c240c 56 8b742414 57 8b06 48 0f8431010000 }
		$sequence_1 = { e8???????? 83c40c 85c0 7d1e 6a71 68???????? 688f000000 }
		$sequence_2 = { 837e1802 7569 8b7e10 6a02 57 e8???????? 83c408 }
		$sequence_3 = { 85c0 740b 6a00 56 e8???????? 83c408 56 }
		$sequence_4 = { 55 8bec 83ec10 8d45f0 50 ff15???????? 33c9 }
		$sequence_5 = { e8???????? 83c40c 3bc3 7520 6830010000 68???????? }
		$sequence_6 = { 53 56 57 6884000000 68???????? 6a58 e8???????? }
		$sequence_7 = { 6a00 ff7508 e8???????? 837dfc00 8bf8 7405 e8???????? }
		$sequence_8 = { 8b742414 6a0f f7d1 49 56 8be9 e8???????? }
		$sequence_9 = { e8???????? 83c414 e9???????? 8dbeb0000000 57 }

	condition:
		7 of them and filesize < 2482176
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 8b6c240c 56 8b742414 57 8b06 48 0f8431010000 }
$sequence_1hex{ e8???????? 83c40c 85c0 7d1e 6a71 68???????? 688f000000 }
$sequence_2hex{ 837e1802 7569 8b7e10 6a02 57 e8???????? 83c408 }
$sequence_3hex{ 85c0 740b 6a00 56 e8???????? 83c408 56 }
$sequence_4hex{ 55 8bec 83ec10 8d45f0 50 ff15???????? 33c9 }
$sequence_5hex{ e8???????? 83c40c 3bc3 7520 6830010000 68???????? }
$sequence_6hex{ 53 56 57 6884000000 68???????? 6a58 e8???????? }
$sequence_7hex{ 6a00 ff7508 e8???????? 837dfc00 8bf8 7405 e8???????? }
$sequence_8hex{ 8b742414 6a0f f7d1 49 56 8be9 e8???????? }
$sequence_9hex{ e8???????? 83c414 e9???????? 8dbeb0000000 57 }

Condition

7 of them and filesize < 2482176

In plain words (Heuristic)

  • The file must be smaller than 2482176 (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: f77416cf-57cd-5a74-bf4f-4ea580dd250c

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