YARA · Malpedia signator rules
MALPEDIA_Win_Babar_Auto
autogenerated rule brought to you by yara-signator
- 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: Babar.
It defines 16 patterns (0 text, 16 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-babar-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Babar_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "1cb71fd6-ee2c-530b-8284-7d5064bf9657"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.babar"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.babar_auto.yar#L1-L174"
= "N/A"
= "698b85276aaa7c0f40098f9036009135b95c4555415cadef1b9a24dd2163f0ec"
= 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 = { 3bd6 7503 8d5014 895010 8931 8b4810 8931 }
$sequence_1 = { 46 e8???????? 0137 2933 33c0 }
$sequence_2 = { 3bd7 7305 e8???????? 8bd0 2bd1 8d0c3a }
$sequence_3 = { 3bd7 7215 7704 3bc3 }
$sequence_4 = { 3bd7 7305 e8???????? 03c7 3bd8 0f83be000000 }
$sequence_5 = { 3bd6 7505 8d55d8 eb16 }
$sequence_6 = { 3bd7 0f8440010000 397e14 0f8437010000 }
$sequence_7 = { 3bd6 7505 8d55e0 eb16 }
$sequence_8 = { 8906 7518 5f 5e 5b }
$sequence_9 = { a1???????? 83c414 85c0 7432 50 ff15???????? 8d443001 }
$sequence_10 = { 5d 33c0 5b 83c414 c3 6a00 6a00 }
$sequence_11 = { 83c414 85ff 752d 6a0c e8???????? 68???????? 8bf0 }
$sequence_12 = { 03fe e8???????? 8bd8 83c408 85db 0f84a8000000 3bdf }
$sequence_13 = { 6801000080 e8???????? 8d442424 50 8d4c242c 51 53 }
$sequence_14 = { b801000000 83c408 c3 8b0c24 53 }
$sequence_15 = { 59 5e c3 56 57 33f6 ff74240c }
condition:
7 of them and filesize < 1294336
}
Strings (16 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 3bd6 7503 8d5014 895010 8931 8b4810 8931 } | |
| $sequence_1 | hex | { 46 e8???????? 0137 2933 33c0 } | |
| $sequence_2 | hex | { 3bd7 7305 e8???????? 8bd0 2bd1 8d0c3a } | |
| $sequence_3 | hex | { 3bd7 7215 7704 3bc3 } | |
| $sequence_4 | hex | { 3bd7 7305 e8???????? 03c7 3bd8 0f83be000000 } | |
| $sequence_5 | hex | { 3bd6 7505 8d55d8 eb16 } | |
| $sequence_6 | hex | { 3bd7 0f8440010000 397e14 0f8437010000 } | |
| $sequence_7 | hex | { 3bd6 7505 8d55e0 eb16 } | |
| $sequence_8 | hex | { 8906 7518 5f 5e 5b } | |
| $sequence_9 | hex | { a1???????? 83c414 85c0 7432 50 ff15???????? 8d443001 } | |
| $sequence_10 | hex | { 5d 33c0 5b 83c414 c3 6a00 6a00 } | |
| $sequence_11 | hex | { 83c414 85ff 752d 6a0c e8???????? 68???????? 8bf0 } | |
| $sequence_12 | hex | { 03fe e8???????? 8bd8 83c408 85db 0f84a8000000 3bdf } | |
| $sequence_13 | hex | { 6801000080 e8???????? 8d442424 50 8d4c242c 51 53 } | |
| $sequence_14 | hex | { b801000000 83c408 c3 8b0c24 53 } | |
| $sequence_15 | hex | { 59 5e c3 56 57 33f6 ff74240c } |
Condition
7 of them and filesize < 1294336In plain words (Heuristic)
- The file must be smaller than 1294336 (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: 1cb71fd6-ee2c-530b-8284-7d5064bf9657
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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