YARA · Malpedia signator rules
MALPEDIA_Win_Bluelight_Auto
autogenerated rule brought to you by yara-signator
MalwareBluelightMalpedia 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: Bluelight.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-bluelight-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Bluelight_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "e8f9e882-a97e-5a18-bbc2-a1cc0401340b"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.bluelight"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.bluelight_auto.yar#L1-L134"
= "N/A"
= "278911f138cae178eb8e13b99f631191fe53859706126567e1ed729abc024bfd"
= 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 = { 85c0 7511 8b459c 85c0 740a 8bd0 8d4d80 }
$sequence_1 = { 85ff 740a 0fb64618 298708010000 5f c6461800 5e }
$sequence_2 = { e8???????? e9???????? 85c0 0f8447040000 8a4d10 32c0 215dc4 }
$sequence_3 = { 8d4d94 e8???????? 85c0 0f84c1000000 68???????? 8d4ddc e8???????? }
$sequence_4 = { 8d3c97 3bd8 7704 3bfe 7354 8bc2 8bfb }
$sequence_5 = { eb41 33c0 8bfb 6a06 59 f3ab 8b442418 }
$sequence_6 = { e8???????? 8bf0 85f6 7575 8b4dd8 e9???????? b93e070100 }
$sequence_7 = { 8b75f8 8d45ec 50 8b45e4 8bd6 85c0 50 }
$sequence_8 = { c3 55 8bec 83ec2c 8365f000 33c0 2145e0 }
$sequence_9 = { 8b8e24010000 85c9 0f8495020000 eb02 8b09 3939 75fa }
condition:
7 of them and filesize < 2191360
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 85c0 7511 8b459c 85c0 740a 8bd0 8d4d80 } | |
| $sequence_1 | hex | { 85ff 740a 0fb64618 298708010000 5f c6461800 5e } | |
| $sequence_2 | hex | { e8???????? e9???????? 85c0 0f8447040000 8a4d10 32c0 215dc4 } | |
| $sequence_3 | hex | { 8d4d94 e8???????? 85c0 0f84c1000000 68???????? 8d4ddc e8???????? } | |
| $sequence_4 | hex | { 8d3c97 3bd8 7704 3bfe 7354 8bc2 8bfb } | |
| $sequence_5 | hex | { eb41 33c0 8bfb 6a06 59 f3ab 8b442418 } | |
| $sequence_6 | hex | { e8???????? 8bf0 85f6 7575 8b4dd8 e9???????? b93e070100 } | |
| $sequence_7 | hex | { 8b75f8 8d45ec 50 8b45e4 8bd6 85c0 50 } | |
| $sequence_8 | hex | { c3 55 8bec 83ec2c 8365f000 33c0 2145e0 } | |
| $sequence_9 | hex | { 8b8e24010000 85c9 0f8495020000 eb02 8b09 3939 75fa } |
Condition
7 of them and filesize < 2191360In plain words (Heuristic)
- The file must be smaller than 2191360 (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: e8f9e882-a97e-5a18-bbc2-a1cc0401340b
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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