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{e546eeb7-8ff9-4568-abd8-5d2c83e9f92e}gw.sys

Byte Label

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {e546eeb7-8ff9-4568-abd8-5d2c83e9f92e}gw.sys by Byte Label 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 “{e546eeb7-8ff9-4568-abd8-5d2c83e9f92e}Gw”.
Publisher:
StdLib  (signed by Byte Label)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
ad98f67699ed6d93f1769baa29b072ae

SHA-1:
ad98f047287d86c7519b84f8f684094d1b1e7775

SHA-256:
b5a26844b9acc4012ef5180466749a7814ad9b9b55a99a6c73153ac54ce31f38

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 11:27:43 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.3.14.14

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\{e546eeb7-8ff9-4568-abd8-5d2c83e9f92e}gw.sys

Digital Signature
Signed by:
Byte Label

Authority:
VeriSign, Inc.

Valid from:
12/16/2014 7:00:00 PM

Valid to:
12/17/2015 6:59:59 PM

Subject:
CN=Byte Label, O=Byte Label, 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:
130858D16CAF60ADAA9933932CD06054

File PE Metadata
Compilation timestamp:
10/20/2015 8:24:48 PM

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:
{e546eeb7-8ff9-4568-abd8-5d2c83e9f92e}Gw

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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