YARA · Malpedia signator rules
MALPEDIA_Win_Pwndlocker_Auto
autogenerated rule brought to you by yara-signator
MalwarePwndlockerMalpedia 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: Pwndlocker.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-pwndlocker-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Pwndlocker_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "0ef9ef98-b584-5412-b76c-e3c013260c32"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.pwndlocker"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.pwndlocker_auto.yar#L1-L119"
= "N/A"
= "5bc1fe4d9dda2a3d7b92f6be48794f673659ba8123fb93f2622432356a3f4a56"
= 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 = { 668b044e 8b721c 01de 8b0486 }
$sequence_1 = { 31ff 31c0 fc ac 84c0 7407 }
$sequence_2 = { 49 8d348a 8b36 01de 31ff 31c0 }
$sequence_3 = { 75e0 5a 8b7224 01de 31c0 668b044e }
$sequence_4 = { 01c7 ebf4 3b7df0 75e0 }
$sequence_5 = { 31c0 fc ac 84c0 7407 c1cf0d }
$sequence_6 = { 8b7224 01de 31c0 668b044e }
$sequence_7 = { 01d8 83c078 8b00 8d3403 8b4e18 8b5620 01da }
$sequence_8 = { 83c078 8b00 8d3403 8b4e18 8b5620 01da }
$sequence_9 = { ac 84c0 7407 c1cf0d 01c7 ebf4 }
condition:
7 of them and filesize < 65536
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 668b044e 8b721c 01de 8b0486 } | |
| $sequence_1 | hex | { 31ff 31c0 fc ac 84c0 7407 } | |
| $sequence_2 | hex | { 49 8d348a 8b36 01de 31ff 31c0 } | |
| $sequence_3 | hex | { 75e0 5a 8b7224 01de 31c0 668b044e } | |
| $sequence_4 | hex | { 01c7 ebf4 3b7df0 75e0 } | |
| $sequence_5 | hex | { 31c0 fc ac 84c0 7407 c1cf0d } | |
| $sequence_6 | hex | { 8b7224 01de 31c0 668b044e } | |
| $sequence_7 | hex | { 01d8 83c078 8b00 8d3403 8b4e18 8b5620 01da } | |
| $sequence_8 | hex | { 83c078 8b00 8d3403 8b4e18 8b5620 01da } | |
| $sequence_9 | hex | { ac 84c0 7407 c1cf0d 01c7 ebf4 } |
Condition
7 of them and filesize < 65536In plain words (Heuristic)
- The file must be smaller than 65536 (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: 0ef9ef98-b584-5412-b76c-e3c013260c32
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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