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MALPEDIA_Win_Poohmilk_Auto

autogenerated rule brought to you by yara-signator

MalwarePoohmilkMalpedia 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: Poohmilk.

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

Summary generated from the rule's metadata and condition.

Rule source

win-poohmilk-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Poohmilk_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "483e4fcf-1f3d-5e75-bbef-a7bb7c4c805d"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.poohmilk"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.poohmilk_auto.yar#L1-L123"
		license_url = "N/A"
		logic_hash = "490defb91f075ad3ae75dd04962c4d29229e5802c0b4c23586aa7787b6607d3f"
		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 = { 8d85ecfdffff 50 ffd7 8d8dc8fbffff 51 8d95ecfdffff }
		$sequence_1 = { 8b5738 8b4230 6a00 51 56 50 }
		$sequence_2 = { ff15???????? 85c0 0f84b9000000 8b542410 8d442414 50 }
		$sequence_3 = { 0f838d000000 0fbe8818344100 3bf1 7346 8b9564ffffff }
		$sequence_4 = { e8???????? 8be5 5d c3 8bbd98fbffff 8d8decfdffff }
		$sequence_5 = { 6880000000 6a03 6a00 6a07 6800000080 56 ff15???????? }
		$sequence_6 = { bb90010000 f7fb 85d2 740d 8bc6 c1e002 8bb0b0724100 }
		$sequence_7 = { 3304bdb8314100 c1e904 8bf8 83e70f }
		$sequence_8 = { 0fb63e 0fb6c0 eb12 8b45e0 8a80fc7b4100 08443b1d }
		$sequence_9 = { 3bcf 0f85f9000000 03de 11bd68d2ffff 29b594d2ffff 8b8594d2ffff }

	condition:
		7 of them and filesize < 245760
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 8d85ecfdffff 50 ffd7 8d8dc8fbffff 51 8d95ecfdffff }
$sequence_1hex{ 8b5738 8b4230 6a00 51 56 50 }
$sequence_2hex{ ff15???????? 85c0 0f84b9000000 8b542410 8d442414 50 }
$sequence_3hex{ 0f838d000000 0fbe8818344100 3bf1 7346 8b9564ffffff }
$sequence_4hex{ e8???????? 8be5 5d c3 8bbd98fbffff 8d8decfdffff }
$sequence_5hex{ 6880000000 6a03 6a00 6a07 6800000080 56 ff15???????? }
$sequence_6hex{ bb90010000 f7fb 85d2 740d 8bc6 c1e002 8bb0b0724100 }
$sequence_7hex{ 3304bdb8314100 c1e904 8bf8 83e70f }
$sequence_8hex{ 0fb63e 0fb6c0 eb12 8b45e0 8a80fc7b4100 08443b1d }
$sequence_9hex{ 3bcf 0f85f9000000 03de 11bd68d2ffff 29b594d2ffff 8b8594d2ffff }

Condition

7 of them and filesize < 245760

In plain words (Heuristic)

  • The file must be smaller than 245760 (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: 483e4fcf-1f3d-5e75-bbef-a7bb7c4c805d

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