YARA · Malpedia signator rules
MALPEDIA_Win_Friedex_Auto
autogenerated rule brought to you by yara-signator
MalwareFriedexMalpedia 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: Friedex.
It defines 16 patterns (0 text, 16 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-friedex-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Friedex_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "d2b00e14-e6fa-5551-aeaf-2f0f4681123e"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.friedex"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.friedex_auto.yar#L1-L177"
= "N/A"
= "2a1e410ded990de72d163ace024d3e6d9a680fcd432c565f5e3bbafe389a6806"
= 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 = { eb16 0fb730 663bf7 7416 663bf2 7405 663bf3 }
$sequence_1 = { c3 53 55 56 57 8bd9 bf00020000 }
$sequence_2 = { 03cd 0fb711 6685d2 75c1 6a2a 5f }
$sequence_3 = { 663910 7431 8bd8 8d7102 eb1d 32c0 eb39 }
$sequence_4 = { 7408 8bce 8bc3 03f5 eb04 03c5 03cd }
$sequence_5 = { eb1d 32c0 eb39 663bfa 7410 6a3f 5a }
$sequence_6 = { 6a62 8bc8 e8???????? 57 8bc8 e8???????? 56 }
$sequence_7 = { 6a2a 5f 6a3f 5b 6a02 }
$sequence_8 = { 8d0dd830a500 890424 894c2404 e8???????? }
$sequence_9 = { 83ec44 8b4508 8d0d3030a500 31d2 890c24 }
$sequence_10 = { 890c24 c744240400000000 8955e8 e8???????? 8d0dbc30a500 }
$sequence_11 = { 894c2404 e8???????? 8d0d4430a500 31d2 8b75f8 89461c 890c24 }
$sequence_12 = { 891424 894c2404 8945f8 e8???????? 8d0d4430a500 31d2 890c24 }
$sequence_13 = { c7424458270000 c7424800100100 8b7de4 c787cc00000000000000 c787c800000000000000 }
$sequence_14 = { 8955e0 e8???????? 8d0dd830a500 890424 }
$sequence_15 = { c744240400000000 8945f4 8955f0 e8???????? 8d0da030a500 }
condition:
7 of them and filesize < 204800
}
Strings (16 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { eb16 0fb730 663bf7 7416 663bf2 7405 663bf3 } | |
| $sequence_1 | hex | { c3 53 55 56 57 8bd9 bf00020000 } | |
| $sequence_2 | hex | { 03cd 0fb711 6685d2 75c1 6a2a 5f } | |
| $sequence_3 | hex | { 663910 7431 8bd8 8d7102 eb1d 32c0 eb39 } | |
| $sequence_4 | hex | { 7408 8bce 8bc3 03f5 eb04 03c5 03cd } | |
| $sequence_5 | hex | { eb1d 32c0 eb39 663bfa 7410 6a3f 5a } | |
| $sequence_6 | hex | { 6a62 8bc8 e8???????? 57 8bc8 e8???????? 56 } | |
| $sequence_7 | hex | { 6a2a 5f 6a3f 5b 6a02 } | |
| $sequence_8 | hex | { 8d0dd830a500 890424 894c2404 e8???????? } | |
| $sequence_9 | hex | { 83ec44 8b4508 8d0d3030a500 31d2 890c24 } | |
| $sequence_10 | hex | { 890c24 c744240400000000 8955e8 e8???????? 8d0dbc30a500 } | |
| $sequence_11 | hex | { 894c2404 e8???????? 8d0d4430a500 31d2 8b75f8 89461c 890c24 } | |
| $sequence_12 | hex | { 891424 894c2404 8945f8 e8???????? 8d0d4430a500 31d2 890c24 } | |
| $sequence_13 | hex | { c7424458270000 c7424800100100 8b7de4 c787cc00000000000000 c787c800000000000000 } | |
| $sequence_14 | hex | { 8955e0 e8???????? 8d0dd830a500 890424 } | |
| $sequence_15 | hex | { c744240400000000 8945f4 8955f0 e8???????? 8d0da030a500 } |
Condition
7 of them and filesize < 204800In plain words (Heuristic)
- The file must be smaller than 204800 (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: d2b00e14-e6fa-5551-aeaf-2f0f4681123e
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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