YARA · Malpedia signator rules
MALPEDIA_Win_Bamital_Auto
autogenerated rule brought to you by yara-signator
MalwareBamitalMalpedia 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: Bamital.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-bamital-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Bamital_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "6556d45a-a640-5581-abda-c3eb1e80606b"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.bamital"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.bamital_auto.yar#L1-L118"
= "N/A"
= "df862f37b3ea4c5c2cdc89a6575ade61bae493e342b81603f16fb985aeca0ce7"
= 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 = { ff75f8 ff7508 e8???????? e8???????? 8b7dfc }
$sequence_1 = { f3a4 011d???????? eb04 0bdb 75bc 5b }
$sequence_2 = { 2c19 eb13 3c20 720f 3c38 }
$sequence_3 = { 035d14 ff4d08 037508 33c0 33c9 4e }
$sequence_4 = { 50 51 6a00 6a00 ff7510 ff75fc }
$sequence_5 = { 49 0bc9 7402 ebe2 }
$sequence_6 = { c745d800000000 c745f000000000 68f8070000 e8???????? 8945d4 6804010000 }
$sequence_7 = { 52 e8???????? 837dd800 7505 e9???????? }
$sequence_8 = { 83c101 51 e8???????? 8945f4 59 }
$sequence_9 = { 8807 83c701 e2d8 c9 c20800 55 }
condition:
7 of them and filesize < 90112
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { ff75f8 ff7508 e8???????? e8???????? 8b7dfc } | |
| $sequence_1 | hex | { f3a4 011d???????? eb04 0bdb 75bc 5b } | |
| $sequence_2 | hex | { 2c19 eb13 3c20 720f 3c38 } | |
| $sequence_3 | hex | { 035d14 ff4d08 037508 33c0 33c9 4e } | |
| $sequence_4 | hex | { 50 51 6a00 6a00 ff7510 ff75fc } | |
| $sequence_5 | hex | { 49 0bc9 7402 ebe2 } | |
| $sequence_6 | hex | { c745d800000000 c745f000000000 68f8070000 e8???????? 8945d4 6804010000 } | |
| $sequence_7 | hex | { 52 e8???????? 837dd800 7505 e9???????? } | |
| $sequence_8 | hex | { 83c101 51 e8???????? 8945f4 59 } | |
| $sequence_9 | hex | { 8807 83c701 e2d8 c9 c20800 55 } |
Condition
7 of them and filesize < 90112In plain words (Heuristic)
- The file must be smaller than 90112 (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: 6556d45a-a640-5581-abda-c3eb1e80606b
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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