YARA · Malpedia signator rules
MALPEDIA_Elf_Babuk_Auto
autogenerated rule brought to you by yara-signator
- Author
- Felix Bilstein - yara-signator at cocacoding dot com
- Date
- 2024-10-31
- Modified
- 2024-11-11
- Score / Quality
- 75 / 75
What this rule detects
autogenerated rule brought to you by yara-signator
Associated malware family: Babuk.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
elf-babuk-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Elf_Babuk_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "8eba83d0-6c95-5d1f-85db-3750f26fdff6"
= "2024-10-31"
= "2024-11-11"
= "https://malpedia.caad.fkie.fraunhofer.de/details/elf.babuk"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/elf.babuk_auto.yar#L1-L131"
= "N/A"
= "a4e1d4252d61243f852bbd89e2ebf51566a3485791e9905d978089b8c49c4cb9"
= 75
= 75
= "FILE"
= "1"
= "yara-signator v0.6.0"
= "callsandjumps;datarefs;binvalue"
= "20241030"
= "26e26953c49c8efafbf72a38076855d578e0a2e4"
= "20241030"
= "CC BY-SA 4.0"
= "TLP:WHITE"
strings:
$sequence_0 = { 658b0d00000000 8b89fcffffff 3b6108 7678 83ec14 8b442418 8b4c241c }
$sequence_1 = { 8b4c2438 890f 8b542444 89570c 8b1d???????? 85db }
$sequence_2 = { e8???????? 8b44240c 89442410 8b4c2418 890c24 e8???????? 8b442420 }
$sequence_3 = { e8???????? 8b442438 8b4804 90 8b492c 894c2420 e8???????? }
$sequence_4 = { c3 658b1d00000000 8b9bfcffffff 8b5b18 8b5b70 8403 890424 }
$sequence_5 = { 01d9 8b9c24a8010000 8bbc243c030000 01fb 11cd 8b8c248c010000 8b9c2464020000 }
$sequence_6 = { 8b44244c 8b4c2440 31d2 eb06 8d5101 90 89f1 }
$sequence_7 = { 895328 8b9424b0000000 8b8c2490000000 01ca 33562c 89532c }
$sequence_8 = { 8b5a40 39d8 0f85360f0000 89bc2408020000 81c4dc010000 c3 89c7 }
$sequence_9 = { 8b4c2424 01ca 89942444050000 8b8c2490050000 c1e11a 898c2420050000 }
condition:
7 of them and filesize < 4186112
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 658b0d00000000 8b89fcffffff 3b6108 7678 83ec14 8b442418 8b4c241c } | |
| $sequence_1 | hex | { 8b4c2438 890f 8b542444 89570c 8b1d???????? 85db } | |
| $sequence_2 | hex | { e8???????? 8b44240c 89442410 8b4c2418 890c24 e8???????? 8b442420 } | |
| $sequence_3 | hex | { e8???????? 8b442438 8b4804 90 8b492c 894c2420 e8???????? } | |
| $sequence_4 | hex | { c3 658b1d00000000 8b9bfcffffff 8b5b18 8b5b70 8403 890424 } | |
| $sequence_5 | hex | { 01d9 8b9c24a8010000 8bbc243c030000 01fb 11cd 8b8c248c010000 8b9c2464020000 } | |
| $sequence_6 | hex | { 8b44244c 8b4c2440 31d2 eb06 8d5101 90 89f1 } | |
| $sequence_7 | hex | { 895328 8b9424b0000000 8b8c2490000000 01ca 33562c 89532c } | |
| $sequence_8 | hex | { 8b5a40 39d8 0f85360f0000 89bc2408020000 81c4dc010000 c3 89c7 } | |
| $sequence_9 | hex | { 8b4c2424 01ca 89942444050000 8b8c2490050000 c1e11a 898c2420050000 } |
Condition
7 of them and filesize < 4186112In plain words (Heuristic)
- The file must be smaller than 4186112 (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: 8eba83d0-6c95-5d1f-85db-3750f26fdff6
Metadata
| version | 1 |
|---|---|
| tool | yara-signator v0.6.0 |
| signator_config | callsandjumps;datarefs;binvalue |
| malpedia_rule_date | 20241030 |
| malpedia_hash | 26e26953c49c8efafbf72a38076855d578e0a2e4 |
| malpedia_version | 20241030 |
| malpedia_license | CC BY-SA 4.0 |
| malpedia_sharing | TLP:WHITE |
Tags:FILE
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