YARA · Malpedia signator rules
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:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "483e4fcf-1f3d-5e75-bbef-a7bb7c4c805d"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.poohmilk"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.poohmilk_auto.yar#L1-L123"
= "N/A"
= "490defb91f075ad3ae75dd04962c4d29229e5802c0b4c23586aa7787b6607d3f"
= 75
= 75
= "FILE"
= "1"
= "yara-signator v0.6.0"
= "callsandjumps;datarefs;binvalue"
= "20260422"
= "a182e35da64e6d71cb55f125c4d4225196523f14"
= "20260504"
= "CC BY-SA 4.0"
= "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)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 8d85ecfdffff 50 ffd7 8d8dc8fbffff 51 8d95ecfdffff } | |
| $sequence_1 | hex | { 8b5738 8b4230 6a00 51 56 50 } | |
| $sequence_2 | hex | { ff15???????? 85c0 0f84b9000000 8b542410 8d442414 50 } | |
| $sequence_3 | hex | { 0f838d000000 0fbe8818344100 3bf1 7346 8b9564ffffff } | |
| $sequence_4 | hex | { e8???????? 8be5 5d c3 8bbd98fbffff 8d8decfdffff } | |
| $sequence_5 | hex | { 6880000000 6a03 6a00 6a07 6800000080 56 ff15???????? } | |
| $sequence_6 | hex | { bb90010000 f7fb 85d2 740d 8bc6 c1e002 8bb0b0724100 } | |
| $sequence_7 | hex | { 3304bdb8314100 c1e904 8bf8 83e70f } | |
| $sequence_8 | hex | { 0fb63e 0fb6c0 eb12 8b45e0 8a80fc7b4100 08443b1d } | |
| $sequence_9 | hex | { 3bcf 0f85f9000000 03de 11bd68d2ffff 29b594d2ffff 8b8594d2ffff } |
Condition
7 of them and filesize < 245760In 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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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)
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
| 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 |
Tags:FILE
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