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{786e0460-9b1c-4665-ac61-0d36341cac47}w.sys

PowerfulBrowse

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {786e0460-9b1c-4665-ac61-0d36341cac47}w.sys by PowerfulBrowse 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 “{786e0460-9b1c-4665-ac61-0d36341cac47}w”.
Publisher:
StdLib  (signed by PowerfulBrowse)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
0ac2a775d6baa4f525bb9aac422777cf

SHA-1:
7ab9e7e2cba7979e979e13380f4f5c9f966eea9b

SHA-256:
cfd22c068fab9430202a53c1b068d0c1042e5e369159cdde337bde7adfea9f8c

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:
12/24/2024 1:00:42 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
16.11.27.10

File size:
42.2 KB (43,208 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\{786e0460-9b1c-4665-ac61-0d36341cac47}w.sys

Digital Signature
Signed by:
PowerfulBrowse

Authority:
VeriSign, Inc.

Valid from:
3/28/2014 5:00:00 PM

Valid to:
3/29/2015 4:59:59 PM

Subject:
CN=PowerfulBrowse, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=PowerfulBrowse, 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:
0D18FDCF326B0F33033260BCD44C1918

File PE Metadata
Compilation timestamp:
1/18/2015 5:30:35 PM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:rN0457WBZwpHs63E+X7BIrTsCEziDH+JgrVJddeX+:RhUcpH/0+LCf7EziDHhdp

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:
6.6136

Code size:
28 KB (28,672 bytes)

Driver
Display name:
{786e0460-9b1c-4665-ac61-0d36341cac47}w

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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