YARA · Malpedia signator rules
MALPEDIA_Win_Explosive_Rat_Auto
autogenerated rule brought to you by yara-signator
MalwareExplosive RatMalpedia 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: Explosive Rat.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-explosive-rat-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Explosive_Rat_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "e139402c-edd2-58d3-9ecf-0198273ab8f0"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.explosive_rat"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.explosive_rat_auto.yar#L1-L132"
= "N/A"
= "9d06166324a057db0813d94dae91a6fe31798f8ad412a3f80e56121007b1ee1a"
= 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 = { 40 40 3b4d0c 75e5 3b4514 750d 33c0 }
$sequence_1 = { 83ec1c 8bcc 68???????? e8???????? 56 e8???????? }
$sequence_2 = { c20800 85f6 7525 83f808 897514 7214 8b6d04 }
$sequence_3 = { 8b4b28 6a04 50 51 ff5320 83c40c 85c0 }
$sequence_4 = { 0fb6d9 40 f6834166460004 740c ff06 85ff }
$sequence_5 = { 8bcc 68???????? e8???????? e8???????? 83c41c 6689b5b0fbffff 668975b0 }
$sequence_6 = { 8b10 8b4004 8b5c2454 83c408 33f6 eb08 8b442464 }
$sequence_7 = { 0f856a010000 85f6 0f85defcffff 8b442418 8b7578 03c2 39442458 }
$sequence_8 = { 33f6 eb5d 8b542460 8b44245c 8b7c2410 52 8b542458 }
$sequence_9 = { c60065 e8???????? ff7514 8bce c6450b00 33db e8???????? }
condition:
7 of them and filesize < 855040
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 40 40 3b4d0c 75e5 3b4514 750d 33c0 } | |
| $sequence_1 | hex | { 83ec1c 8bcc 68???????? e8???????? 56 e8???????? } | |
| $sequence_2 | hex | { c20800 85f6 7525 83f808 897514 7214 8b6d04 } | |
| $sequence_3 | hex | { 8b4b28 6a04 50 51 ff5320 83c40c 85c0 } | |
| $sequence_4 | hex | { 0fb6d9 40 f6834166460004 740c ff06 85ff } | |
| $sequence_5 | hex | { 8bcc 68???????? e8???????? e8???????? 83c41c 6689b5b0fbffff 668975b0 } | |
| $sequence_6 | hex | { 8b10 8b4004 8b5c2454 83c408 33f6 eb08 8b442464 } | |
| $sequence_7 | hex | { 0f856a010000 85f6 0f85defcffff 8b442418 8b7578 03c2 39442458 } | |
| $sequence_8 | hex | { 33f6 eb5d 8b542460 8b44245c 8b7c2410 52 8b542458 } | |
| $sequence_9 | hex | { c60065 e8???????? ff7514 8bce c6450b00 33db e8???????? } |
Condition
7 of them and filesize < 855040In plain words (Heuristic)
- The file must be smaller than 855040 (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: e139402c-edd2-58d3-9ecf-0198273ab8f0
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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