YARA · Malpedia signator rules
MALPEDIA_Win_Doublefantasy_Auto
autogenerated rule brought to you by yara-signator
MalwareDoublefantasyMalpedia 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: Doublefantasy.
It defines 16 patterns (0 text, 16 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-doublefantasy-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Doublefantasy_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "6effc5c9-0006-5ed7-b805-b3d9b614f224"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.doublefantasy"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.doublefantasy_auto.yar#L1-L178"
= "N/A"
= "e51e60993fcda8ab09ee32d5deecfc0fd82ef9804363aa3f286e47f2d848dfa5"
= 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 = { 56 e8???????? 8945e4 3bc6 7c49 8b07 }
$sequence_1 = { ff15???????? 83f8ff 751c 397514 7409 ff7514 }
$sequence_2 = { c6430174 8b4508 668b4002 668945dc 3935???????? 7421 }
$sequence_3 = { 6805010000 57 68???????? e8???????? }
$sequence_4 = { 393d???????? 7523 3d52000028 741c 3d54000028 750c }
$sequence_5 = { 8a91908c2700 8b4c2408 8811 33d2 8a10 56 }
$sequence_6 = { 3d09000c80 7451 3bc3 7c59 6aff ff35???????? }
$sequence_7 = { 5e 7e0f 0fb64002 83e03f 8a80908c2700 eb02 }
$sequence_8 = { c1e204 0bd6 837c241001 8a92908c2700 885101 7e1c }
$sequence_9 = { e8???????? 8b4605 c68094a3270000 ff35???????? ff35???????? e8???????? 83c414 }
$sequence_10 = { 43 895de0 33ff 897de4 897dd4 897dd8 897dfc }
$sequence_11 = { 0fb608 c1e902 8a91908c2700 8b4c2408 }
$sequence_12 = { 8a92908c2700 885101 7e1c 0fb67002 33d2 8a5001 c1ee06 }
$sequence_13 = { e8???????? 3bc7 8945e8 7d42 8b4628 3bc7 7414 }
$sequence_14 = { 720f 3c7a 770b 0fb6c0 8a80ad8c2700 eb02 }
$sequence_15 = { 0fb6c0 8a80ad8c2700 eb02 32c0 84c0 7410 }
condition:
7 of them and filesize < 172032
}
Strings (16 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 56 e8???????? 8945e4 3bc6 7c49 8b07 } | |
| $sequence_1 | hex | { ff15???????? 83f8ff 751c 397514 7409 ff7514 } | |
| $sequence_2 | hex | { c6430174 8b4508 668b4002 668945dc 3935???????? 7421 } | |
| $sequence_3 | hex | { 6805010000 57 68???????? e8???????? } | |
| $sequence_4 | hex | { 393d???????? 7523 3d52000028 741c 3d54000028 750c } | |
| $sequence_5 | hex | { 8a91908c2700 8b4c2408 8811 33d2 8a10 56 } | |
| $sequence_6 | hex | { 3d09000c80 7451 3bc3 7c59 6aff ff35???????? } | |
| $sequence_7 | hex | { 5e 7e0f 0fb64002 83e03f 8a80908c2700 eb02 } | |
| $sequence_8 | hex | { c1e204 0bd6 837c241001 8a92908c2700 885101 7e1c } | |
| $sequence_9 | hex | { e8???????? 8b4605 c68094a3270000 ff35???????? ff35???????? e8???????? 83c414 } | |
| $sequence_10 | hex | { 43 895de0 33ff 897de4 897dd4 897dd8 897dfc } | |
| $sequence_11 | hex | { 0fb608 c1e902 8a91908c2700 8b4c2408 } | |
| $sequence_12 | hex | { 8a92908c2700 885101 7e1c 0fb67002 33d2 8a5001 c1ee06 } | |
| $sequence_13 | hex | { e8???????? 3bc7 8945e8 7d42 8b4628 3bc7 7414 } | |
| $sequence_14 | hex | { 720f 3c7a 770b 0fb6c0 8a80ad8c2700 eb02 } | |
| $sequence_15 | hex | { 0fb6c0 8a80ad8c2700 eb02 32c0 84c0 7410 } |
Condition
7 of them and filesize < 172032In plain words (Heuristic)
- The file must be smaller than 172032 (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: 6effc5c9-0006-5ed7-b805-b3d9b614f224
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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