YARA · Malpedia signator rules
MALPEDIA_Win_Blackenergy_Auto
autogenerated rule brought to you by yara-signator
MalwareBlackenergyMalpedia 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: Blackenergy.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-blackenergy-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Blackenergy_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "de87d6df-3bc3-54af-8716-0b1a40ecad9f"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.blackenergy"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.blackenergy_auto.yar#L1-L125"
= "N/A"
= "2323ff20bbdd47a53314190f6bdf610528610937bd86fe3e5a932ddb1a136f63"
= 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 = { 75df 8b5d0c 3bde 0f84c2000000 8b44240c 53 ff742418 }
$sequence_1 = { 57 57 68000000c0 ff7314 ff15???????? 894318 8b4318 }
$sequence_2 = { 85c0 7512 56 e8???????? ff35???????? }
$sequence_3 = { ff15???????? 897b18 8b5b14 3bdf 7407 53 ff15???????? }
$sequence_4 = { 49 8bc3 2bc1 40 5b 5f 8bd0 }
$sequence_5 = { ffd0 5e 5b c9 c3 0fb6c9 }
$sequence_6 = { 83ff02 7510 689704811d 53 e8???????? 8d4dcc }
$sequence_7 = { 8d45fc 50 8d45f0 50 8d45bc }
$sequence_8 = { 8b4710 2b45fc 8b0e 890c30 83c604 }
$sequence_9 = { 74da 8b45fc 8b5818 53 6a40 895df4 }
condition:
7 of them and filesize < 98304
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 75df 8b5d0c 3bde 0f84c2000000 8b44240c 53 ff742418 } | |
| $sequence_1 | hex | { 57 57 68000000c0 ff7314 ff15???????? 894318 8b4318 } | |
| $sequence_2 | hex | { 85c0 7512 56 e8???????? ff35???????? } | |
| $sequence_3 | hex | { ff15???????? 897b18 8b5b14 3bdf 7407 53 ff15???????? } | |
| $sequence_4 | hex | { 49 8bc3 2bc1 40 5b 5f 8bd0 } | |
| $sequence_5 | hex | { ffd0 5e 5b c9 c3 0fb6c9 } | |
| $sequence_6 | hex | { 83ff02 7510 689704811d 53 e8???????? 8d4dcc } | |
| $sequence_7 | hex | { 8d45fc 50 8d45f0 50 8d45bc } | |
| $sequence_8 | hex | { 8b4710 2b45fc 8b0e 890c30 83c604 } | |
| $sequence_9 | hex | { 74da 8b45fc 8b5818 53 6a40 895df4 } |
Condition
7 of them and filesize < 98304In plain words (Heuristic)
- The file must be smaller than 98304 (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: de87d6df-3bc3-54af-8716-0b1a40ecad9f
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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