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{152137ce-0719-4a70-a289-76452ff93bbe}w.sys

loffinam

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {152137ce-0719-4a70-a289-76452ff93bbe}w.sys by loffinam 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 “{152137ce-0719-4a70-a289-76452ff93bbe}w”.
Publisher:
StdLib  (signed by loffinam)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
b46b66e1c7e4b527277dfee47fb11a75

SHA-1:
3ba832e89a1252f84c7027201dfbeb89f6b1fc04

SHA-256:
6f2c491ea3462d20b4e425f60eea83d132c6bab2e0c2cd575511b4c69731b303

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:
5/2/2024 10:11:40 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.3.15.8

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\{152137ce-0719-4a70-a289-76452ff93bbe}w.sys

Digital Signature
Signed by:
loffinam

Authority:
VeriSign, Inc.

Valid from:
11/4/2014 7:00:00 PM

Valid to:
12/5/2015 6:59:59 PM

Subject:
CN=loffinam, O=loffinam, 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:
729D10E8E1C2641FD549BF172F4BB3BC

File PE Metadata
Compilation timestamp:
10/4/2015 8:28:34 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...
 
[+]

Code size:
28 KB (28,672 bytes)

Driver
Display name:
{152137ce-0719-4a70-a289-76452ff93bbe}w

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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