YARA · Malpedia signator rules
MALPEDIA_Win_Pwnpos_Auto
autogenerated rule brought to you by yara-signator
- 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: Pwnpos.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-pwnpos-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Pwnpos_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "546c439a-ccfe-53bd-bc6f-6c9c0e3bf0ae"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.pwnpos"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.pwnpos_auto.yar#L1-L128"
= "N/A"
= "be627f6724334036a177ad77a00dc67bf19908c5daa0a6199c0a6d01353fa95a"
= 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 = { 83c408 833d????????00 7606 291d???????? 8b4d0c 8b4508 8908 }
$sequence_1 = { ff2495705d4200 8bc7 ba03000000 83e904 720c 83e003 03c8 }
$sequence_2 = { 8b0485a0774400 83e61f c1e606 8d443004 8020fd 8bc7 }
$sequence_3 = { 8b5514 2bc6 51 40 8944242c 48 50 }
$sequence_4 = { 8b542428 50 8d4c2434 51 52 }
$sequence_5 = { 56 8bf1 8b4810 3bce 7302 }
$sequence_6 = { 720f 8b95a0f9ffff 52 e8???????? 83c404 b001 8b4df4 }
$sequence_7 = { c1e106 030c9da0774400 eb02 8bca f641247f 7525 3bc7 }
$sequence_8 = { 8b550c 7205 8b520c eb03 83c20c e8???????? }
$sequence_9 = { 899dd8fdffff 889dc8fdffff e8???????? 83c404 b001 8b4df4 64890d00000000 }
condition:
7 of them and filesize < 638976
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 83c408 833d????????00 7606 291d???????? 8b4d0c 8b4508 8908 } | |
| $sequence_1 | hex | { ff2495705d4200 8bc7 ba03000000 83e904 720c 83e003 03c8 } | |
| $sequence_2 | hex | { 8b0485a0774400 83e61f c1e606 8d443004 8020fd 8bc7 } | |
| $sequence_3 | hex | { 8b5514 2bc6 51 40 8944242c 48 50 } | |
| $sequence_4 | hex | { 8b542428 50 8d4c2434 51 52 } | |
| $sequence_5 | hex | { 56 8bf1 8b4810 3bce 7302 } | |
| $sequence_6 | hex | { 720f 8b95a0f9ffff 52 e8???????? 83c404 b001 8b4df4 } | |
| $sequence_7 | hex | { c1e106 030c9da0774400 eb02 8bca f641247f 7525 3bc7 } | |
| $sequence_8 | hex | { 8b550c 7205 8b520c eb03 83c20c e8???????? } | |
| $sequence_9 | hex | { 899dd8fdffff 889dc8fdffff e8???????? 83c404 b001 8b4df4 64890d00000000 } |
Condition
7 of them and filesize < 638976In plain words (Heuristic)
- The file must be smaller than 638976 (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: 546c439a-ccfe-53bd-bc6f-6c9c0e3bf0ae
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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