YARA · Malpedia signator rules
MALPEDIA_Win_Lobshot_Auto
autogenerated rule brought to you by yara-signator
MalwareLobshotMalpedia 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: Lobshot.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-lobshot-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Lobshot_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "3aedc20c-8fcd-5f2e-8950-262fe5205985"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.lobshot"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.lobshot_auto.yar#L1-L122"
= "N/A"
= "bcec013374c9453f37ec62b298554ce41d2a5197eff32b1fed483a5323372e4a"
= 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 = { c744241800000000 c744241c00000000 ff15???????? 8bf8 }
$sequence_1 = { 46 8b94b1540b0000 8b4dfc 0fb70499 }
$sequence_2 = { 8b35???????? 8d44240c 50 57 c744241457545351 c744241875657279 }
$sequence_3 = { 50 ff15???????? 8bd8 85db 7477 8b3d???????? }
$sequence_4 = { 6a00 56 ff15???????? 85c0 7417 50 ff15???????? }
$sequence_5 = { 7571 8b4c2414 33d2 668911 8d4c244c 51 }
$sequence_6 = { 33ed 66893c01 8b0d???????? 88540102 83c003 3b05???????? 7291 }
$sequence_7 = { 8a5a01 8d5202 80eb61 85ff 7417 c0e004 2c10 }
$sequence_8 = { 894d08 66890c70 8b5740 8b4f3c }
$sequence_9 = { 88040a ff4614 33c0 2186b4160000 668986b0160000 5e c3 }
condition:
7 of them and filesize < 247808
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { c744241800000000 c744241c00000000 ff15???????? 8bf8 } | |
| $sequence_1 | hex | { 46 8b94b1540b0000 8b4dfc 0fb70499 } | |
| $sequence_2 | hex | { 8b35???????? 8d44240c 50 57 c744241457545351 c744241875657279 } | |
| $sequence_3 | hex | { 50 ff15???????? 8bd8 85db 7477 8b3d???????? } | |
| $sequence_4 | hex | { 6a00 56 ff15???????? 85c0 7417 50 ff15???????? } | |
| $sequence_5 | hex | { 7571 8b4c2414 33d2 668911 8d4c244c 51 } | |
| $sequence_6 | hex | { 33ed 66893c01 8b0d???????? 88540102 83c003 3b05???????? 7291 } | |
| $sequence_7 | hex | { 8a5a01 8d5202 80eb61 85ff 7417 c0e004 2c10 } | |
| $sequence_8 | hex | { 894d08 66890c70 8b5740 8b4f3c } | |
| $sequence_9 | hex | { 88040a ff4614 33c0 2186b4160000 668986b0160000 5e c3 } |
Condition
7 of them and filesize < 247808In plain words (Heuristic)
- The file must be smaller than 247808 (a cheap guard that skips large files).
- At least 7 patterns in the rule must match.
Test this rule in your browser
Drop a file to scan it with this rule using YARA-X compiled to WebAssembly. Nothing is uploaded.
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: 3aedc20c-8fcd-5f2e-8950-262fe5205985
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
Related rules
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04