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MALPEDIA_Win_Stresspaint_Auto

autogenerated rule brought to you by yara-signator

MalwareStresspaintMalpedia 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: Stresspaint.

It defines 16 patterns (0 text, 16 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

win-stresspaint-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Stresspaint_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "77a09e52-ba1a-5b26-a188-9dce41401fa4"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.stresspaint"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.stresspaint_auto.yar#L1-L179"
		license_url = "N/A"
		logic_hash = "d6dbc3c23e69b2d59e500bf4ed8b4f058e66ee34d00940b32963b98b6f4f94d2"
		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 = { 6a04 5e 897010 894818 89481c 894820 c740140c4e4100 }
		$sequence_1 = { 8b0f 6a00 8b5e0c 0fbf5322 }
		$sequence_2 = { 5b c3 85f6 740f 8b542414 5f }
		$sequence_3 = { 0f85a6000000 8bce e8???????? e9???????? 8b4608 83e01c }
		$sequence_4 = { 83c40c e9???????? 8b442414 8b542424 2bc2 eb29 }
		$sequence_5 = { 57 33db 53 68???????? 56 e8???????? 83c40c }
		$sequence_6 = { ff75e0 8b4d14 e8???????? 47 ff45f8 ebbc 2b45f4 }
		$sequence_7 = { 0f8548010000 8b7e44 8b4648 2bc7 b9???????? 3bc1 }
		$sequence_8 = { 85c0 7512 8b4e10 53 }
		$sequence_9 = { 8b5324 6a10 51 52 57 }
		$sequence_10 = { ff15???????? 33c9 6a02 83c003 5a f7e2 0f90c1 }
		$sequence_11 = { 88410b 5d 33c0 5b 59 }
		$sequence_12 = { 8b4e04 51 53 53 53 57 }
		$sequence_13 = { e8???????? 83c414 0fbf5622 8b4c2424 47 83c104 3bfa }
		$sequence_14 = { 56 57 8b7c240c 57 8bf1 e8???????? 8d4704 }
		$sequence_15 = { 6a65 8b06 56 ff501c 8bf8 8d4dd4 e8???????? }

	condition:
		7 of them and filesize < 1155072
}

Strings (16 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 6a04 5e 897010 894818 89481c 894820 c740140c4e4100 }
$sequence_1hex{ 8b0f 6a00 8b5e0c 0fbf5322 }
$sequence_2hex{ 5b c3 85f6 740f 8b542414 5f }
$sequence_3hex{ 0f85a6000000 8bce e8???????? e9???????? 8b4608 83e01c }
$sequence_4hex{ 83c40c e9???????? 8b442414 8b542424 2bc2 eb29 }
$sequence_5hex{ 57 33db 53 68???????? 56 e8???????? 83c40c }
$sequence_6hex{ ff75e0 8b4d14 e8???????? 47 ff45f8 ebbc 2b45f4 }
$sequence_7hex{ 0f8548010000 8b7e44 8b4648 2bc7 b9???????? 3bc1 }
$sequence_8hex{ 85c0 7512 8b4e10 53 }
$sequence_9hex{ 8b5324 6a10 51 52 57 }
$sequence_10hex{ ff15???????? 33c9 6a02 83c003 5a f7e2 0f90c1 }
$sequence_11hex{ 88410b 5d 33c0 5b 59 }
$sequence_12hex{ 8b4e04 51 53 53 53 57 }
$sequence_13hex{ e8???????? 83c414 0fbf5622 8b4c2424 47 83c104 3bfa }
$sequence_14hex{ 56 57 8b7c240c 57 8bf1 e8???????? 8d4704 }
$sequence_15hex{ 6a65 8b06 56 ff501c 8bf8 8d4dd4 e8???????? }

Condition

7 of them and filesize < 1155072

In plain words (Heuristic)

  • The file must be smaller than 1155072 (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: 77a09e52-ba1a-5b26-a188-9dce41401fa4

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