YARA · Malpedia signator rules
MALPEDIA_Win_Phantomcore_Auto
autogenerated rule brought to you by yara-signator
MalwarePhantomcoreMalpedia 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: Phantomcore.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-phantomcore-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Phantomcore_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "d6c311eb-178f-58fc-8bfd-681ca59fa521"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.phantomcore"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.phantomcore_auto.yar#L1-L134"
= "N/A"
= "79491ef7aca9ea04d096da343e603c2ec314a4ac27633790981743e1b4a691d8"
= 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 = { 8b7930 8d5001 81fa00100000 7216 8b57fc 83c7fc 29d7 }
$sequence_1 = { 8d4afe 89c8 890c24 3b4c2410 72d3 7611 8d4704 }
$sequence_2 = { 6a0f ff5018 b900000000 84c0 7405 b901000000 ba???????? }
$sequence_3 = { f6464104 0f8528010000 31c0 e9???????? f6464104 0f856a010000 31c0 }
$sequence_4 = { e8???????? 83c410 8b45e8 64a300000000 8b45d8 83c42c 5e }
$sequence_5 = { 0fb6c7 0f43c5 0fbeeb 83c5bf 0fb6cb 80c320 83fd1a }
$sequence_6 = { e9???????? 39ca 0f8494000000 0f57c0 31ff 0f10143a 0f105c3a0c }
$sequence_7 = { 8b5d10 8933 898c24a8000000 898424ac000000 8b442444 89842498000000 8b442460 }
$sequence_8 = { 8d8e20010000 e8???????? 83c430 5d c3 55 83ec30 }
$sequence_9 = { e8???????? 83c414 8b4580 837d8410 8d8d70ffffff 7206 8b8d70ffffff }
condition:
7 of them and filesize < 1840128
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 8b7930 8d5001 81fa00100000 7216 8b57fc 83c7fc 29d7 } | |
| $sequence_1 | hex | { 8d4afe 89c8 890c24 3b4c2410 72d3 7611 8d4704 } | |
| $sequence_2 | hex | { 6a0f ff5018 b900000000 84c0 7405 b901000000 ba???????? } | |
| $sequence_3 | hex | { f6464104 0f8528010000 31c0 e9???????? f6464104 0f856a010000 31c0 } | |
| $sequence_4 | hex | { e8???????? 83c410 8b45e8 64a300000000 8b45d8 83c42c 5e } | |
| $sequence_5 | hex | { 0fb6c7 0f43c5 0fbeeb 83c5bf 0fb6cb 80c320 83fd1a } | |
| $sequence_6 | hex | { e9???????? 39ca 0f8494000000 0f57c0 31ff 0f10143a 0f105c3a0c } | |
| $sequence_7 | hex | { 8b5d10 8933 898c24a8000000 898424ac000000 8b442444 89842498000000 8b442460 } | |
| $sequence_8 | hex | { 8d8e20010000 e8???????? 83c430 5d c3 55 83ec30 } | |
| $sequence_9 | hex | { e8???????? 83c414 8b4580 837d8410 8d8d70ffffff 7206 8b8d70ffffff } |
Condition
7 of them and filesize < 1840128In plain words (Heuristic)
- The file must be smaller than 1840128 (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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Drop a file here or click to chooseScanned locally with YARA-X. Files up to 200 MB.
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: d6c311eb-178f-58fc-8bfd-681ca59fa521
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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