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{32e6fb9e-c464-4bb3-b1ea-0f3c34583ae1}w.sys

Browse Burst

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {32e6fb9e-c464-4bb3-b1ea-0f3c34583ae1}w.sys by Browse Burst 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 “{32e6fb9e-c464-4bb3-b1ea-0f3c34583ae1}w”.
Publisher:
StdLib  (signed by Browse Burst)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
c3f118a68daa445c168b8f880c6c7c96

SHA-1:
43a200c878d996ddd5246d0ebe1d841fc6e1533e

SHA-256:
216b4cbe528acaef11cc4837c40e3d634b2d3929d1930b97673e72188d9ac46b

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:
11/27/2024 1:16:24 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.3.15.3

File size:
42.1 KB (43,152 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\{32e6fb9e-c464-4bb3-b1ea-0f3c34583ae1}w.sys

Digital Signature
Signed by:
Browse Burst

Authority:
VeriSign, Inc.

Valid from:
11/25/2014 5:30:00 AM

Valid to:
1/25/2016 5:29:59 AM

Subject:
CN=Browse Burst, O=Browse Burst, L=San Diego, 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:
4500BF3B5546430C4486721124A0635F

File PE Metadata
Compilation timestamp:
6/30/2015 2:13:15 AM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

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...
 
[+]

Entropy:
6.6135

Code size:
28 KB (28,672 bytes)

Driver
Display name:
{32e6fb9e-c464-4bb3-b1ea-0f3c34583ae1}w

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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