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{bfb10c93-5530-4015-9a3f-61dfa880af58}w.sys

waleisa

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {bfb10c93-5530-4015-9a3f-61dfa880af58}w.sys by waleisa has been detected as adware by 20 anti-malware scanners. It runs as a Windows kernel mode device driver named “{bfb10c93-5530-4015-9a3f-61dfa880af58}w”. 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 waleisa)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
3202761fd133d04ff1f80a31e3afa455

SHA-1:
533d5f02f0da86e46f2f578d097068be0dd9e885

SHA-256:
dbbac1622d6ad04f39c3d51119f178fba3b464a98698bf86d740e9ff396e8864

Scanner detections:
20 / 68

Status:
Adware

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

Analysis date:
4/29/2024 11:29:06 PM UTC  (a few moments ago)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.BrowseFox.V
6085893

Agnitum Outpost
PUA.BrowseFox
7.1.1

Avira AntiVirus
Adware/BrowseFox.A.1227
7.11.193.163

AVG
Generic
2015.0.3267

Bitdefender
Adware.BrowseFox.V
1.0.20.1710

Clam AntiVirus
Win.Adware.Netfilter-134
0.98/19749

Comodo Security
TrojWare.Win32.AltBrowse.IZZV
20303

Dr.Web
hacktool program Tool.NetFilter.313
9.0.1.05190

Emsisoft Anti-Malware
Adware.BrowseFox.V
9.0.0.4668

F-Prot
W32/A-76f53fd6
v6.4.7.1.166

F-Secure
Adware.BrowseFox.V
11.2014-08-12_2

G Data
Adware.BrowseFox
14.12.24

MicroWorld eScan
Adware.BrowseFox.V
15.0.0.1026

NANO AntiVirus
Riskware.Win32.NetFilter.dgkdox
0.28.6.63850

Norman
Adware.BrowseFox.V
04.12.2014 14:30:06

nProtect
Adware.BrowseFox.V
14.12.08.01

Reason Heuristics
PUP.waleisa
15.1.12.11

Vba32 AntiVirus
AdWare.Win64.Yotoon
3.12.26.3

VIPRE Antivirus
Threat.4150696
35418

Zillya! Antivirus
Backdoor.CPEX.Win32.29350
2.0.0.2000

File size:
42.2 KB (43,192 bytes)

Product version:
1.4.4.6

Copyright:
Copyright © 2013 StdLib

Original file name:
StdLib.sys

File type:
Driver (Win32 SYS)

Language:
English (United States)

Common path:
C:\Windows\System32\drivers\{bfb10c93-5530-4015-9a3f-61dfa880af58}w.sys

Digital Signature
Signed by:
waleisa

Authority:
VeriSign, Inc.

Valid from:
4/22/2014 4:30:00 AM

Valid to:
4/23/2015 4:29:59 AM

Subject:
CN=waleisa, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=waleisa, 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:
2C339888F9FD7944F1C60CB80A80AF6D

File PE Metadata
Compilation timestamp:
9/22/2014 11:31:51 PM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:ZN0457WBZwpHs63E+X7BIrTsCEziDH+JgrVJddfgB:7hUcpH/0+LCf7EziDHhd0

Entry address:
0xA03E

Entry point:
8B, FF, 55, 8B, EC, E8, BD, FF, FF, FF, 5D, E9, 20, 70, FF, FF, CC, CC, 94, A1, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, CE, A4, 00, 00, E0, 80, 00, 00, B4, A0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 24, A5, 00, 00, 00, 80, 00, 00, EC, A0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, A4, A9, 00, 00, 38, 80, 00, 00, C4, A0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 9C, AA, 00, 00, 10, 80, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, FC, A4, 00, 00, 10, A5, 00, 00, E8, A4...
 
[+]

Code size:
28 KB (28,672 bytes)

Driver
Display name:
{bfb10c93-5530-4015-9a3f-61dfa880af58}w

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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