YARA · Malpedia signator rules
MALPEDIA_Win_Newpass_Auto
autogenerated rule brought to you by yara-signator
MalwareNewpassMalpedia 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: Newpass.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-newpass-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Newpass_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "47e0f7a6-576f-55a2-9137-441eab6be471"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.newpass"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.newpass_auto.yar#L1-L129"
= "N/A"
= "d06c223e085210a8c1f4811e1dc01e77d08da433457f2862fcb60a549ddda3f8"
= 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 = { 4833c4 4889442458 418be9 498bf8 488bda 488bf1 4889542448 }
$sequence_1 = { 80781900 7521 4c8bc8 488b00 80781900 7535 0f1f8000000000 }
$sequence_2 = { 57 4883ec30 498bd9 498bf8 488be9 }
$sequence_3 = { 408829 41ff4608 eba3 80fa75 0f857d010000 33d2 4533c9 }
$sequence_4 = { 49837f1810 7205 4d8b07 eb03 4d8bc7 498d5101 488bc8 }
$sequence_5 = { 4d8d4001 32c1 ffc1 3471 418840ff }
$sequence_6 = { 720a 488b4c2470 e8???????? 48c78424880000000f000000 4889b42480000000 c644247000 48837c246810 }
$sequence_7 = { 83f90e 72e9 0fb605???????? 448805???????? 48c74424380f000000 4c89442430 4488442420 }
$sequence_8 = { 488bcf e8???????? 3c01 7409 33c9 ff15???????? }
$sequence_9 = { cc 488d7c2438 33c0 b908000000 f3aa b001 488b4c2468 }
condition:
7 of them and filesize < 2654208
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 4833c4 4889442458 418be9 498bf8 488bda 488bf1 4889542448 } | |
| $sequence_1 | hex | { 80781900 7521 4c8bc8 488b00 80781900 7535 0f1f8000000000 } | |
| $sequence_2 | hex | { 57 4883ec30 498bd9 498bf8 488be9 } | |
| $sequence_3 | hex | { 408829 41ff4608 eba3 80fa75 0f857d010000 33d2 4533c9 } | |
| $sequence_4 | hex | { 49837f1810 7205 4d8b07 eb03 4d8bc7 498d5101 488bc8 } | |
| $sequence_5 | hex | { 4d8d4001 32c1 ffc1 3471 418840ff } | |
| $sequence_6 | hex | { 720a 488b4c2470 e8???????? 48c78424880000000f000000 4889b42480000000 c644247000 48837c246810 } | |
| $sequence_7 | hex | { 83f90e 72e9 0fb605???????? 448805???????? 48c74424380f000000 4c89442430 4488442420 } | |
| $sequence_8 | hex | { 488bcf e8???????? 3c01 7409 33c9 ff15???????? } | |
| $sequence_9 | hex | { cc 488d7c2438 33c0 b908000000 f3aa b001 488b4c2468 } |
Condition
7 of them and filesize < 2654208In plain words (Heuristic)
- The file must be smaller than 2654208 (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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Drop a file here or click to chooseScanned locally with YARA-X. Files up to 200 MB.
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: 47e0f7a6-576f-55a2-9137-441eab6be471
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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