YARA · Malpedia signator rules
MALPEDIA_Win_Putabmow_Auto
autogenerated rule brought to you by yara-signator
MalwarePutabmowMalpedia 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: Putabmow.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-putabmow-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Putabmow_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "a9b616a0-139a-5b4a-93ea-ffaa2b56c68b"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.putabmow"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.putabmow_auto.yar#L1-L133"
= "N/A"
= "01d30dc643c1d106fb037ce2688ab30e4c0d3fee3187ef5ac4f73c934b8e8d84"
= 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 = { 57 e8???????? 837e1800 751c 8bcf e8???????? 8b0f }
$sequence_1 = { 8d45f4 64a300000000 8b4514 8b7508 8b7d0c 8b5d10 68000000f0 }
$sequence_2 = { 8bca 81faff070000 771b c1e906 80e23f 80c9c0 80ca80 }
$sequence_3 = { 6805000080 ff15???????? 85c0 7451 837e1408 7204 8b06 }
$sequence_4 = { c1e604 8b0b 03f1 ff7508 ff37 8bd6 }
$sequence_5 = { 8bd6 7502 8b16 c78424ac01000000000000 c78424b001000000000000 c78424b00100000f000000 c78424ac01000000000000 }
$sequence_6 = { 57 e8???????? 83c404 ff75b4 ff15???????? 6a00 ff75b0 }
$sequence_7 = { 89442444 3bd1 0f83ab000000 89542420 8b54242c 3b542420 0f879d000000 }
$sequence_8 = { 8b7e14 83ff08 7204 8b06 eb02 8bc6 8a1c58 }
$sequence_9 = { e9???????? 83ec0c 8d8c24d0000000 e8???????? c684242802000003 8d442434 837c244810 }
condition:
7 of them and filesize < 704512
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 57 e8???????? 837e1800 751c 8bcf e8???????? 8b0f } | |
| $sequence_1 | hex | { 8d45f4 64a300000000 8b4514 8b7508 8b7d0c 8b5d10 68000000f0 } | |
| $sequence_2 | hex | { 8bca 81faff070000 771b c1e906 80e23f 80c9c0 80ca80 } | |
| $sequence_3 | hex | { 6805000080 ff15???????? 85c0 7451 837e1408 7204 8b06 } | |
| $sequence_4 | hex | { c1e604 8b0b 03f1 ff7508 ff37 8bd6 } | |
| $sequence_5 | hex | { 8bd6 7502 8b16 c78424ac01000000000000 c78424b001000000000000 c78424b00100000f000000 c78424ac01000000000000 } | |
| $sequence_6 | hex | { 57 e8???????? 83c404 ff75b4 ff15???????? 6a00 ff75b0 } | |
| $sequence_7 | hex | { 89442444 3bd1 0f83ab000000 89542420 8b54242c 3b542420 0f879d000000 } | |
| $sequence_8 | hex | { 8b7e14 83ff08 7204 8b06 eb02 8bc6 8a1c58 } | |
| $sequence_9 | hex | { e9???????? 83ec0c 8d8c24d0000000 e8???????? c684242802000003 8d442434 837c244810 } |
Condition
7 of them and filesize < 704512In plain words (Heuristic)
- The file must be smaller than 704512 (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: a9b616a0-139a-5b4a-93ea-ffaa2b56c68b
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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