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{6b320d34-648f-46d8-8353-a4300db1c49c}t.sys

Laflurla

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {6b320d34-648f-46d8-8353-a4300db1c49c}t.sys by Laflurla has been detected as adware by 15 anti-malware scanners. It runs as a Windows kernel mode device driver named “{6b320d34-648f-46d8-8353-a4300db1c49c}t”. It will plug into the web browser and display context-based advertisements by overwriting existing ads or by inserting new ones on various web pages.
Publisher:
StdLib  (signed by Laflurla)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
bacb54346370884cfa84622928da4726

SHA-1:
2eb9242cd7e48df4369a8c4daf93b8fce73470c5

Scanner detections:
15 / 68

Status:
Adware

Explanation:
Injects advertising in the web browser in various formats.

Analysis date:
4/16/2024 11:45:40 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.Yotoon
7.1.1

Avira AntiVirus
Adware/BrowseFox.A.282
7.11.181.38

AVG
Generic
2017.0.2834

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.16213

Clam AntiVirus
Win.Adware.Agent-12778
0.98/21411

Dr.Web
Trojan.BPlug.117
9.0.1.044

F-Prot
W32/A-caf5c463
v6.4.7.1.166

IKARUS anti.virus
PUA.RiskWare.NetFilter
t3scan.1.7.8.0

McAfee
Artemis!961C7BEF962E
5600.6490

NANO AntiVirus
Riskware.Win32.Yotoon.denstu
0.28.2.62841

Reason Heuristics
PUP.Yontoo.Laflurla (M)
16.2.13.20

Trend Micro House Call
Suspicious_GEN.F47V0617
7.2.44

Vba32 AntiVirus
AdWare.Yotoon
3.12.26.3

VIPRE Antivirus
Trojan.Win32.Generic
34220

Zillya! Antivirus
Adware.Yotoon.Win64.6
2.0.0.1966

File size:
53.9 KB (55,224 bytes)

Product version:
1.4.3.1

Copyright:
Copyright © 2013 StdLib

Original file name:
StdLib.sys

File type:
Driver (Win32 SYS)

Language:
English (United States)

Common path:
C:\Windows\System32\drivers\{6b320d34-648f-46d8-8353-a4300db1c49c}t.sys

Digital Signature
Signed by:
Laflurla

Authority:
VeriSign, Inc.

Valid from:
2/3/2014 4:00:00 PM

Valid to:
2/4/2015 3:59:59 PM

Subject:
CN=Laflurla, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Laflurla, L=Santa Monica, S=California, C=US

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
0541E25DBE69A2BC84C39AB35093A301

File PE Metadata
Compilation timestamp:
1/30/2014 4:46:38 PM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:VLbP7EDNtMTw/RWDjR/McKV5qEXGBJgxgZ+4AOmvtnBU6+RRA6R:ZP7EJSTukuzTrGYs+JNBUtRv

Entry address:
0xA73E

Entry point:
8B, FF, 55, 8B, EC, E8, BD, FF, FF, FF, 5D, E9, CA, E3, FF, FF, CC, CC, B4, A7, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 84, AB, 00, 00, 94, 90, 00, 00, A0, A7, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, BA, AB, 00, 00, 80, 90, 00, 00, AC, A7, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, D6, AB, 00, 00, 8C, 90, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, A6, AB, 00, 00, 92, AB, 00, 00, 00, 00, 00, 00, C2, AB, 00, 00, 00, 00, 00, 00, AC, A8, 00, 00, C4, A8, 00, 00, D6, A8...
 
[+]

Entropy:
6.3468

Code size:
36.3 KB (37,120 bytes)

Driver
Display name:
{6b320d34-648f-46d8-8353-a4300db1c49c}t

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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