{bbb14e79-8bca-4abd-b124-4d30f9a4e2ad}w.sys

ConstaSurf

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {bbb14e79-8bca-4abd-b124-4d30f9a4e2ad}w.sys by ConstaSurf has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. It runs as a Windows kernel mode device driver named “{bbb14e79-8bca-4abd-b124-4d30f9a4e2ad}w”.
Publisher:
StdLib  (signed by ConstaSurf)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
08b16b376efc621a6e21101e1b740de8

SHA-1:
abaccf1409e6d6f4406612207a3e07b6deb4edff

SHA-256:
cdaf2c4d8cfe72f3652832018916a521f378c631be8e8a4f83dca6df713ee60e

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Belongs to the Sambreel/Yontoo progam that inserts various forms of advertising in the user's web browser, installed with minimal or no user consent.

Analysis date:
5/5/2024 1:14:16 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.3.13.1

File size:
51.2 KB (52,416 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\{bbb14e79-8bca-4abd-b124-4d30f9a4e2ad}w.sys

Digital Signature
Signed by:

Authority:
VeriSign, Inc.

Valid from:
3/18/2014 5:00:00 PM

Valid to:
3/19/2015 4:59:59 PM

Subject:
CN=ConstaSurf, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=ConstaSurf, 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:
46A82C62F93896A2C29C94EC6C4D8A3D

File PE Metadata
Compilation timestamp:
8/6/2014 4:52:14 PM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

Entry address:
0xC03E

Entry point:
8B, FF, 55, 8B, EC, E8, BD, FF, FF, FF, 5D, E9, 62, 50, FF, FF, CC, CC, 74, C1, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, BC, C4, 00, 00, C0, A0, 00, 00, B4, C0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 12, C5, 00, 00, 00, A0, 00, 00, EC, C0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, AE, C8, 00, 00, 38, A0, 00, 00, C4, C0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, A6, C9, 00, 00, 10, A0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, EA, C4, 00, 00, FE, C4, 00, 00, D6, C4...
 
[+]

Entropy:
6.3816

Code size:
37 KB (37,888 bytes)

Driver
Display name:
{bbb14e79-8bca-4abd-b124-4d30f9a4e2ad}w

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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