YARA · Malpedia signator rules
MALPEDIA_Win_Poison_Rat_Auto
autogenerated rule brought to you by yara-signator
MalwarePoison 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: Poison Rat.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-poison-rat-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Poison_Rat_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "7c6f2ea3-14d0-5bd3-b5de-002b01a6e4ac"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.poison_rat"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.poison_rat_auto.yar#L1-L113"
= "N/A"
= "3e3b3a6380a6de226db390b398cafc3338e9d953c2f6c73b523494bf22932b99"
= 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 = { f3ab 6810270000 8d8dc4d5ffff 6a01 }
$sequence_1 = { 83e61f 8b048580c54000 8b04f0 83f8ff }
$sequence_2 = { 33f3 8bf9 8930 8bf1 c1ef10 c1e908 }
$sequence_3 = { 33d7 8b7c2414 c1ef18 8b3cbd30984000 }
$sequence_4 = { 8ac8 80c120 888840b34000 eb1f 83f861 }
$sequence_5 = { 8bd3 c1ea18 c1ed10 8b149530984000 }
$sequence_6 = { 331c9530984000 8bd7 81e2ff000000 331c9530a44000 8b10 }
$sequence_7 = { 8bd9 c1eb18 895c2420 8bdf 8b7c2420 c1eb10 }
$sequence_8 = { 8a6e08 8a4e09 c1e108 0bca 33d2 8a560b }
$sequence_9 = { 330c9530a04000 8bd5 81e2ff000000 81e3ff000000 c1ed18 }
condition:
7 of them and filesize < 101688
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { f3ab 6810270000 8d8dc4d5ffff 6a01 } | |
| $sequence_1 | hex | { 83e61f 8b048580c54000 8b04f0 83f8ff } | |
| $sequence_2 | hex | { 33f3 8bf9 8930 8bf1 c1ef10 c1e908 } | |
| $sequence_3 | hex | { 33d7 8b7c2414 c1ef18 8b3cbd30984000 } | |
| $sequence_4 | hex | { 8ac8 80c120 888840b34000 eb1f 83f861 } | |
| $sequence_5 | hex | { 8bd3 c1ea18 c1ed10 8b149530984000 } | |
| $sequence_6 | hex | { 331c9530984000 8bd7 81e2ff000000 331c9530a44000 8b10 } | |
| $sequence_7 | hex | { 8bd9 c1eb18 895c2420 8bdf 8b7c2420 c1eb10 } | |
| $sequence_8 | hex | { 8a6e08 8a4e09 c1e108 0bca 33d2 8a560b } | |
| $sequence_9 | hex | { 330c9530a04000 8bd5 81e2ff000000 81e3ff000000 c1ed18 } |
Condition
7 of them and filesize < 101688In plain words (Heuristic)
- The file must be smaller than 101688 (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: 7c6f2ea3-14d0-5bd3-b5de-002b01a6e4ac
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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