YARA · Malpedia signator rules
MALPEDIA_Win_Fakerean_Auto
autogenerated rule brought to you by yara-signator
MalwareFakereanMalpedia 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: Fakerean.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-fakerean-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Fakerean_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "45156ef6-1ddc-53be-a40e-9a09b692be93"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.fakerean"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.fakerean_auto.yar#L1-L126"
= "N/A"
= "3a37dfdb60cc89dc2591ac6f557cc84926b59d10e42bfe03813160b85d0b1324"
= 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 = { 53 6a06 6a04 53 6a01 68000000c0 }
$sequence_1 = { 7506 89968c040000 0fb7c1 399e88040000 740e bac8000000 }
$sequence_2 = { 8975fc 56 6a02 ff15???????? 8bf0 83feff 7465 }
$sequence_3 = { 384dda 753b 83bdc4feffff05 751a 83f802 752d }
$sequence_4 = { 53 bbeb010000 53 50 ff15???????? 53 ff35???????? }
$sequence_5 = { 0f84d6feffff 6a12 e9???????? 83fe7b 0f8512ffffff 8b9358010000 8bc7 }
$sequence_6 = { c3 53 57 8d8608290100 50 }
$sequence_7 = { 8bc2 ab ab ab ab 6a08 59 }
$sequence_8 = { 33c0 398bf0030000 eb38 83fe6f 750f 8bb3f8030000 f7de }
$sequence_9 = { ff15???????? 85c0 0f84ac000000 8b45ec }
condition:
7 of them and filesize < 4071424
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 53 6a06 6a04 53 6a01 68000000c0 } | |
| $sequence_1 | hex | { 7506 89968c040000 0fb7c1 399e88040000 740e bac8000000 } | |
| $sequence_2 | hex | { 8975fc 56 6a02 ff15???????? 8bf0 83feff 7465 } | |
| $sequence_3 | hex | { 384dda 753b 83bdc4feffff05 751a 83f802 752d } | |
| $sequence_4 | hex | { 53 bbeb010000 53 50 ff15???????? 53 ff35???????? } | |
| $sequence_5 | hex | { 0f84d6feffff 6a12 e9???????? 83fe7b 0f8512ffffff 8b9358010000 8bc7 } | |
| $sequence_6 | hex | { c3 53 57 8d8608290100 50 } | |
| $sequence_7 | hex | { 8bc2 ab ab ab ab 6a08 59 } | |
| $sequence_8 | hex | { 33c0 398bf0030000 eb38 83fe6f 750f 8bb3f8030000 f7de } | |
| $sequence_9 | hex | { ff15???????? 85c0 0f84ac000000 8b45ec } |
Condition
7 of them and filesize < 4071424In plain words (Heuristic)
- The file must be smaller than 4071424 (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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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: 45156ef6-1ddc-53be-a40e-9a09b692be93
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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